/* BFD back-end for HP PA-RISC ELF files.
- Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 1997
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001
Free Software Foundation, Inc.
- Written by
-
+ Original code by
Center for Software Science
Department of Computer Science
University of Utah
+ Largely rewritten by Alan Modra <alan@linuxcare.com.au>
This file is part of BFD, the Binary File Descriptor library.
#include "bfd.h"
#include "sysdep.h"
-#include "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.h"
+#include "elf/hppa.h"
+#include "libhppa.h"
+#include "elf32-hppa.h"
+#define ARCH_SIZE 32
+#include "elf-hppa.h"
+#include "elf32-hppa.h"
-/* The internal type of a symbol table extension entry. */
-typedef unsigned long symext_entryS;
-
-/* The external type of a symbol table extension entry. */
-#define ELF32_PARISC_SX_SIZE (4)
-#define ELF32_PARISC_SX_GET(bfd, addr) bfd_h_get_32 ((bfd), (addr))
-#define ELF32_PARISC_SX_PUT(bfd, val, addr) \
- bfd_h_put_32 ((bfd), (val), (addr))
-
-/* HPPA symbol table extension entry types */
-enum elf32_hppa_symextn_types
-{
- PARISC_SXT_NULL,
- PARISC_SXT_SYMNDX,
- PARISC_SXT_ARG_RELOC,
-};
-
-/* These macros compose and decompose the value of a symextn entry:
-
- entry_type = ELF32_PARISC_SX_TYPE(word);
- entry_value = ELF32_PARISC_SX_VAL(word);
- word = ELF32_PARISC_SX_WORD(type,val); */
-
-#define ELF32_PARISC_SX_TYPE(p) ((p) >> 24)
-#define ELF32_PARISC_SX_VAL(p) ((p) & 0xFFFFFF)
-#define ELF32_PARISC_SX_WORD(type,val) (((type) << 24) + (val & 0xFFFFFF))
-
-/* The following was added facilitate implementation of the .hppa_symextn
- section. This section is built after the symbol table is built in the
- elf_write_object_contents routine (called from bfd_close). It is built
- so late because it requires information that is not known until
- the symbol and string table sections have been allocated, and
- the symbol table has been built. */
-
-#define SYMEXTN_SECTION_NAME ".PARISC.symext"
-
-struct symext_chain
- {
- symext_entryS entry;
- struct symext_chain *next;
- };
+/* In order to gain some understanding of code in this file without
+ knowing all the intricate details of the linker, note the
+ following:
-typedef struct symext_chain symext_chainS;
+ Functions named elf32_hppa_* are called by external routines, other
+ functions are only called locally. elf32_hppa_* functions appear
+ in this file more or less in the order in which they are called
+ from external routines. eg. elf32_hppa_check_relocs is called
+ early in the link process, elf32_hppa_finish_dynamic_sections is
+ one of the last functions. */
-/* We use three different hash tables to hold information for
- linking PA ELF objects.
+/* We use two hash tables to hold information for linking PA ELF objects.
The first is the elf32_hppa_link_hash_table which is derived
from the standard ELF linker hash table. We use this as a place to
base BFD hash table. The stub hash table holds the information
necessary to build the linker stubs during a link.
- The last hash table keeps track of argument location information needed
- to build hash tables. Each function with nonzero argument location
- bits will have an entry in this table. */
+ There are a number of different stubs generated by the linker.
+
+ Long branch stub:
+ : ldil LR'X,%r1
+ : be,n RR'X(%sr4,%r1)
+
+ PIC long branch stub:
+ : b,l .+8,%r1
+ : addil LR'X - ($PIC_pcrel$0 - 4),%r1
+ : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
+
+ Import stub to call shared library routine from normal object file
+ (single sub-space version)
+ : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
+ : ldw RR'lt_ptr+ltoff(%r1),%r21
+ : bv %r0(%r21)
+ : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
+
+ Import stub to call shared library routine from shared library
+ (single sub-space version)
+ : addil LR'ltoff,%r19 ; get procedure entry point
+ : ldw RR'ltoff(%r1),%r21
+ : bv %r0(%r21)
+ : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
+
+ Import stub to call shared library routine from normal object file
+ (multiple sub-space support)
+ : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
+ : ldw RR'lt_ptr+ltoff(%r1),%r21
+ : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
+ : ldsid (%r21),%r1
+ : mtsp %r1,%sr0
+ : be 0(%sr0,%r21) ; branch to target
+ : stw %rp,-24(%sp) ; save rp
+
+ Import stub to call shared library routine from shared library
+ (multiple sub-space support)
+ : addil LR'ltoff,%r19 ; get procedure entry point
+ : ldw RR'ltoff(%r1),%r21
+ : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
+ : ldsid (%r21),%r1
+ : mtsp %r1,%sr0
+ : be 0(%sr0,%r21) ; branch to target
+ : stw %rp,-24(%sp) ; save rp
+
+ Export stub to return from shared lib routine (multiple sub-space support)
+ One of these is created for each exported procedure in a shared
+ library (and stored in the shared lib). Shared lib routines are
+ called via the first instruction in the export stub so that we can
+ do an inter-space return. Not required for single sub-space.
+ : bl,n X,%rp ; trap the return
+ : nop
+ : ldw -24(%sp),%rp ; restore the original rp
+ : ldsid (%rp),%r1
+ : mtsp %r1,%sr0
+ : be,n 0(%sr0,%rp) ; inter-space return */
+
+#define PLT_ENTRY_SIZE 8
+#define PLABEL_PLT_ENTRY_SIZE PLT_ENTRY_SIZE
+#define GOT_ENTRY_SIZE 4
+#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
+
+static const bfd_byte plt_stub[] =
+{
+ 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
+ 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
+ 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
+#define PLT_STUB_ENTRY (3*4)
+ 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
+ 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
+ 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
+ 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
+};
+
+/* Section name for stubs is the associated section name plus this
+ string. */
+#define STUB_SUFFIX ".stub"
+
+/* Setting the following non-zero makes all long branch stubs
+ generated during a shared link of the PIC variety. This saves on
+ relocs, but costs one extra instruction per stub. */
+#ifndef LONG_BRANCH_PIC_IN_SHLIB
+#define LONG_BRANCH_PIC_IN_SHLIB 1
+#endif
+
+/* Set this non-zero to use import stubs instead of long branch stubs
+ where a .plt entry exists for the symbol. This is a fairly useless
+ option as import stubs are bigger than PIC long branch stubs. */
+#ifndef LONG_BRANCH_VIA_PLT
+#define LONG_BRANCH_VIA_PLT 0
+#endif
+
+/* We don't need to copy any PC- or GP-relative dynamic relocs into a
+ shared object's dynamic section. All the relocs of the limited
+ class we are interested in, are absolute. See check_relocs. */
+#ifndef IS_ABSOLUTE_RELOC
+#define IS_ABSOLUTE_RELOC(r_type) 1
+#endif
+
+enum elf32_hppa_stub_type {
+ hppa_stub_long_branch,
+ hppa_stub_long_branch_shared,
+ hppa_stub_import,
+ hppa_stub_import_shared,
+ hppa_stub_export,
+ hppa_stub_none
+};
-/* Hash table for linker stubs. */
+struct elf32_hppa_stub_hash_entry {
-struct elf32_hppa_stub_hash_entry
-{
- /* Base hash table entry structure, we can get the name of the stub
- (and thus know exactly what actions it performs) from the base
- hash table entry. */
+ /* Base hash table entry structure. */
struct bfd_hash_entry root;
- /* Offset of the beginning of this stub. */
- bfd_vma offset;
+ /* The stub section. */
+ asection *stub_sec;
+
+#if ! LONG_BRANCH_PIC_IN_SHLIB
+ /* It's associated reloc section. */
+ asection *reloc_sec;
+#endif
+
+ /* Offset within stub_sec of the beginning of this stub. */
+ bfd_vma stub_offset;
/* Given the symbol's value and its section we can determine its final
value when building the stubs (so the stub knows where to jump. */
- symvalue target_value;
+ bfd_vma target_value;
asection *target_section;
-};
-struct elf32_hppa_stub_hash_table
-{
- /* The hash table itself. */
- struct bfd_hash_table root;
+ enum elf32_hppa_stub_type stub_type;
- /* The stub BFD. */
- bfd *stub_bfd;
+ /* The symbol table entry, if any, that this was derived from. */
+ struct elf32_hppa_link_hash_entry *h;
- /* Where to place the next stub. */
- bfd_byte *location;
+ /* Where this stub is being called from, or, in the case of combined
+ stub sections, the first input section in the group. */
+ asection *id_sec;
+};
- /* Current offset in the stub section. */
- unsigned int offset;
+struct elf32_hppa_link_hash_entry {
-};
+ struct elf_link_hash_entry elf;
-/* Hash table for argument location information. */
+ /* A pointer to the most recently used stub hash entry against this
+ symbol. */
+ struct elf32_hppa_stub_hash_entry *stub_cache;
-struct elf32_hppa_args_hash_entry
-{
- /* Base hash table entry structure. */
- struct bfd_hash_entry root;
+#if ! LONG_BRANCH_PIC_IN_SHLIB
+ /* Used to track whether we have allocated space for a long branch
+ stub relocation for this symbol in the given section. */
+ asection *stub_reloc_sec;
+#endif
- /* The argument location bits for this entry. */
- int arg_bits;
-};
+ /* Used to count relocations for delayed sizing of relocation
+ sections. */
+ struct elf32_hppa_dyn_reloc_entry {
-struct elf32_hppa_args_hash_table
-{
- /* The hash table itself. */
- struct bfd_hash_table root;
-};
+ /* Next relocation in the chain. */
+ struct elf32_hppa_dyn_reloc_entry *next;
-struct elf32_hppa_link_hash_entry
-{
- struct elf_link_hash_entry root;
-};
+ /* The section in dynobj. */
+ asection *section;
-struct elf32_hppa_link_hash_table
-{
- /* The main hash table. */
- struct elf_link_hash_table root;
+ /* Number of relocs copied in this section. */
+ bfd_size_type count;
+ } *reloc_entries;
- /* The stub hash table. */
- struct elf32_hppa_stub_hash_table *stub_hash_table;
+ /* Set during a static link if we detect a function is PIC. */
+ unsigned int maybe_pic_call:1;
- /* The argument relocation bits hash table. */
- struct elf32_hppa_args_hash_table *args_hash_table;
+ /* Set if the only reason we need a .plt entry is for a non-PIC to
+ PIC function call. */
+ unsigned int pic_call:1;
- /* A count of the number of output symbols. */
- unsigned int output_symbol_count;
+ /* Set if this symbol is used by a plabel reloc. */
+ unsigned int plabel:1;
- /* Stuff so we can handle DP relative relocations. */
- long global_value;
- int global_sym_defined;
+ /* Set if this symbol is an init or fini function and thus should
+ use an absolute reloc. */
+ unsigned int plt_abs:1;
};
-/* FIXME. */
-#define ARGUMENTS 0
-#define RETURN_VALUE 1
-
-/* The various argument relocations that may be performed. */
-typedef enum
-{
- /* No relocation. */
- NO,
- /* Relocate 32 bits from GR to FP register. */
- GF,
- /* Relocate 64 bits from a GR pair to FP pair. */
- GD,
- /* Relocate 32 bits from FP to GR. */
- FG,
- /* Relocate 64 bits from FP pair to GR pair. */
- DG,
-} arg_reloc_type;
-
-/* What is being relocated (eg which argument or the return value). */
-typedef enum
-{
- ARG0, ARG1, ARG2, ARG3, RET,
-} arg_reloc_location;
+struct elf32_hppa_link_hash_table {
+ /* The main hash table. */
+ struct elf_link_hash_table root;
-/* ELF32/HPPA relocation support
+ /* The stub hash table. */
+ struct bfd_hash_table stub_hash_table;
- This file contains ELF32/HPPA relocation support as specified
- in the Stratus FTX/Golf Object File Format (SED-1762) dated
- February 1994. */
+ /* Linker stub bfd. */
+ bfd *stub_bfd;
-#include "elf32-hppa.h"
-#include "hppa_stubs.h"
+ /* Linker call-backs. */
+ asection * (*add_stub_section) PARAMS ((const char *, asection *));
+ void (*layout_sections_again) PARAMS ((void));
+
+ /* Array to keep track of which stub sections have been created, and
+ information on stub grouping. */
+ struct map_stub {
+ /* This is the section to which stubs in the group will be
+ attached. */
+ asection *link_sec;
+ /* The stub section. */
+ asection *stub_sec;
+#if ! LONG_BRANCH_PIC_IN_SHLIB
+ /* The stub section's reloc section. */
+ asection *reloc_sec;
+#endif
+ } *stub_group;
+
+ /* Short-cuts to get to dynamic linker sections. */
+ asection *sgot;
+ asection *srelgot;
+ asection *splt;
+ asection *srelplt;
+ asection *sdynbss;
+ asection *srelbss;
+
+ /* Used during a final link to store the base of the text and data
+ segments so that we can perform SEGREL relocations. */
+ bfd_vma text_segment_base;
+ bfd_vma data_segment_base;
+
+ /* Whether we support multiple sub-spaces for shared libs. */
+ unsigned int multi_subspace:1;
+
+ /* Flags set when PCREL12F and PCREL17F branches detected. Used to
+ select suitable defaults for the stub group size. */
+ unsigned int has_12bit_branch:1;
+ unsigned int has_17bit_branch:1;
+
+ /* Set if we need a .plt stub to support lazy dynamic linking. */
+ unsigned int need_plt_stub:1;
+};
-static bfd_reloc_status_type hppa_elf_reloc
- PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+/* Various hash macros and functions. */
+#define hppa_link_hash_table(p) \
+ ((struct elf32_hppa_link_hash_table *) ((p)->hash))
-static unsigned long hppa_elf_relocate_insn
- PARAMS ((bfd *, asection *, unsigned long, unsigned long, long,
- long, unsigned long, unsigned long, unsigned long));
+#define hppa_stub_hash_lookup(table, string, create, copy) \
+ ((struct elf32_hppa_stub_hash_entry *) \
+ bfd_hash_lookup ((table), (string), (create), (copy)))
-static bfd_reloc_status_type hppa_elf_reloc
- PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd*, char **));
+static struct bfd_hash_entry *stub_hash_newfunc
+ PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
-static reloc_howto_type * elf_hppa_reloc_type_lookup
- PARAMS ((bfd *, bfd_reloc_code_real_type));
+static struct bfd_hash_entry *hppa_link_hash_newfunc
+ PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
-static boolean elf32_hppa_set_section_contents
- PARAMS ((bfd *, sec_ptr, PTR, file_ptr, bfd_size_type));
+static struct bfd_link_hash_table *elf32_hppa_link_hash_table_create
+ PARAMS ((bfd *));
-static void elf32_hppa_info_to_howto
- PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
+/* Stub handling functions. */
+static char *hppa_stub_name
+ PARAMS ((const asection *, const asection *,
+ const struct elf32_hppa_link_hash_entry *,
+ const Elf_Internal_Rela *));
-static boolean elf32_hppa_backend_symbol_table_processing
- PARAMS ((bfd *, elf_symbol_type *, unsigned int));
+static struct elf32_hppa_stub_hash_entry *hppa_get_stub_entry
+ PARAMS ((const asection *, const asection *,
+ struct elf32_hppa_link_hash_entry *,
+ const Elf_Internal_Rela *,
+ struct elf32_hppa_link_hash_table *));
-static void elf32_hppa_backend_begin_write_processing
- PARAMS ((bfd *, struct bfd_link_info *));
+static struct elf32_hppa_stub_hash_entry *hppa_add_stub
+ PARAMS ((const char *, asection *, struct elf32_hppa_link_hash_table *));
-static void elf32_hppa_backend_final_write_processing
- PARAMS ((bfd *, boolean));
+static enum elf32_hppa_stub_type hppa_type_of_stub
+ PARAMS ((asection *, const Elf_Internal_Rela *,
+ struct elf32_hppa_link_hash_entry *, bfd_vma));
-static void add_entry_to_symext_chain
- PARAMS ((bfd *, unsigned int, unsigned int, symext_chainS **,
- symext_chainS **));
+static boolean hppa_build_one_stub
+ PARAMS ((struct bfd_hash_entry *, PTR));
-static void
-elf_hppa_tc_make_sections PARAMS ((bfd *, symext_chainS *));
+static boolean hppa_size_one_stub
+ PARAMS ((struct bfd_hash_entry *, PTR));
-static boolean hppa_elf_is_local_label_name PARAMS ((bfd *, const char *));
+/* BFD and elf backend functions. */
+static boolean elf32_hppa_object_p PARAMS ((bfd *));
static boolean elf32_hppa_add_symbol_hook
PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
const char **, flagword *, asection **, bfd_vma *));
-static bfd_reloc_status_type elf32_hppa_bfd_final_link_relocate
- PARAMS ((reloc_howto_type *, bfd *, bfd *, asection *,
- bfd_byte *, bfd_vma, bfd_vma, bfd_vma, struct bfd_link_info *,
- asection *, const char *, int));
-
-static struct bfd_link_hash_table *elf32_hppa_link_hash_table_create
- PARAMS ((bfd *));
-
-static struct bfd_hash_entry *
-elf32_hppa_stub_hash_newfunc
- PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
-
-static struct bfd_hash_entry *
-elf32_hppa_args_hash_newfunc
- PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
-
-static boolean
-elf32_hppa_relocate_section
- PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
- bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
+static boolean elf32_hppa_create_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
-static boolean
-elf32_hppa_stub_hash_table_init
- PARAMS ((struct elf32_hppa_stub_hash_table *, bfd *,
- struct bfd_hash_entry *(*) PARAMS ((struct bfd_hash_entry *,
- struct bfd_hash_table *,
- const char *))));
+static boolean elf32_hppa_check_relocs
+ PARAMS ((bfd *, struct bfd_link_info *,
+ asection *, const Elf_Internal_Rela *));
-static boolean
-elf32_hppa_build_one_stub PARAMS ((struct bfd_hash_entry *, PTR));
+static asection *elf32_hppa_gc_mark_hook
+ PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
+ struct elf_link_hash_entry *, Elf_Internal_Sym *));
-static boolean
-elf32_hppa_read_symext_info
- PARAMS ((bfd *, Elf_Internal_Shdr *, struct elf32_hppa_args_hash_table *,
- Elf_Internal_Sym *));
+static boolean elf32_hppa_gc_sweep_hook
+ PARAMS ((bfd *, struct bfd_link_info *,
+ asection *, const Elf_Internal_Rela *));
-static unsigned int elf32_hppa_size_of_stub
- PARAMS ((unsigned int, unsigned int, bfd_vma, bfd_vma, const char *));
+static void elf32_hppa_hide_symbol
+ PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
-static boolean elf32_hppa_arg_reloc_needed
- PARAMS ((unsigned int, unsigned int, arg_reloc_type []));
+static boolean elf32_hppa_adjust_dynamic_symbol
+ PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
-static void elf32_hppa_name_of_stub
- PARAMS ((unsigned int, unsigned int, bfd_vma, bfd_vma, char *));
+static boolean hppa_handle_PIC_calls
+ PARAMS ((struct elf_link_hash_entry *, PTR));
-static boolean elf32_hppa_size_symext PARAMS ((struct bfd_hash_entry *, PTR));
+static boolean allocate_plt_and_got_and_discard_relocs
+ PARAMS ((struct elf_link_hash_entry *, PTR));
-static boolean elf32_hppa_link_output_symbol_hook
- PARAMS ((bfd *, struct bfd_link_info *, const char *,
- Elf_Internal_Sym *, asection *));
+static boolean clobber_millicode_symbols
+ PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *));
-/* ELF/PA relocation howto entries. */
+static boolean elf32_hppa_size_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
-static reloc_howto_type elf_hppa_howto_table[ELF_HOWTO_TABLE_SIZE] =
-{
- {R_PARISC_NONE, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_NONE"},
- /* The values in DIR32 are to placate the check in
- _bfd_stab_section_find_nearest_line. */
- {R_PARISC_DIR32, 0, 2, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DIR32", false, 0, 0xffffffff, false},
- {R_PARISC_DIR21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DIR21L"},
- {R_PARISC_DIR17R, 0, 0, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DIR17R"},
- {R_PARISC_DIR17F, 0, 0, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DIR17F"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_DIR14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DIR14R"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
-
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_PCREL21L, 0, 0, 21, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL21L"},
- {R_PARISC_PCREL17R, 0, 0, 17, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL17R"},
- {R_PARISC_PCREL17F, 0, 0, 17, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL17F"},
- {R_PARISC_PCREL17C, 0, 0, 17, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL17C"},
- {R_PARISC_PCREL14R, 0, 0, 14, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL14R"},
- {R_PARISC_PCREL14F, 0, 0, 14, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL14F"},
-
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_DPREL21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DPREL21L"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_DPREL14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DPREL14R"},
- {R_PARISC_DPREL14F, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DPREL14F"},
-
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_DLTREL21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTREL21L"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_DLTREL14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTREL14R"},
- {R_PARISC_DLTREL14F, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTREL14F"},
-
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_DLTIND21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTIND21L"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_DLTIND14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTIND14R"},
- {R_PARISC_DLTIND14F, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTIND14F"},
-
- {R_PARISC_SETBASE, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_SETBASE"},
- {R_PARISC_BASEREL32, 0, 0, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL32"},
- {R_PARISC_BASEREL21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL21L"},
- {R_PARISC_BASEREL17R, 0, 0, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL17R"},
- {R_PARISC_BASEREL17F, 0, 0, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL17F"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_BASEREL14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL14R"},
- {R_PARISC_BASEREL14F, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL14F"},
-
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_TEXTREL32, 0, 0, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_TEXTREL32"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
-
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_DATAREL32, 0, 0, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
-
-
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_PLABEL32, 0, 0, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLABEL32"},
- {R_PARISC_PLABEL21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLABEL21L"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_PLABEL14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLABEL14R"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
-
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
-
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
-
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
-
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
-
-
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_PLTIND21L, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLTIND21L"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
- {R_PARISC_PLTIND14R, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLTIND14R"},
- {R_PARISC_PLTIND14F, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLTIND14F"},
-
-
- {R_PARISC_COPY, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_COPY"},
- {R_PARISC_GLOB_DAT, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_GLOB_DAT"},
- {R_PARISC_JMP_SLOT, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_JMP_SLOT"},
- {R_PARISC_RELATIVE, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_RELATIVE"},
-
- {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_dont, NULL, "R_PARISC_UNIMPLEMENTED"},
-};
+static boolean elf32_hppa_final_link
+ PARAMS ((bfd *, struct bfd_link_info *));
-/* Where (what register type) is an argument comming from? */
-typedef enum
-{
- AR_NO,
- AR_GR,
- AR_FR,
- AR_FU,
- AR_FPDBL1,
- AR_FPDBL2,
-} arg_location;
-
-/* Horizontal represents the callee's argument location information,
- vertical represents caller's argument location information. Value at a
- particular X,Y location represents what (if any) argument relocation
- needs to be performed to make caller and callee agree. */
-
-static CONST arg_reloc_type arg_mismatches[6][6] =
-{
- {NO, NO, NO, NO, NO, NO},
- {NO, NO, GF, NO, GD, NO},
- {NO, FG, NO, NO, NO, NO},
- {NO, NO, NO, NO, NO, NO},
- {NO, DG, NO, NO, NO, NO},
- {NO, DG, NO, NO, NO, NO},
-};
+static void hppa_record_segment_addr
+ PARAMS ((bfd *, asection *, PTR));
-/* Likewise, but reversed for the return value. */
-static CONST arg_reloc_type ret_mismatches[6][6] =
-{
- {NO, NO, NO, NO, NO, NO},
- {NO, NO, FG, NO, DG, NO},
- {NO, GF, NO, NO, NO, NO},
- {NO, NO, NO, NO, NO, NO},
- {NO, GD, NO, NO, NO, NO},
- {NO, GD, NO, NO, NO, NO},
-};
+static bfd_reloc_status_type final_link_relocate
+ PARAMS ((asection *, bfd_byte *, const Elf_Internal_Rela *,
+ bfd_vma, struct elf32_hppa_link_hash_table *, asection *,
+ struct elf32_hppa_link_hash_entry *));
-/* Misc static crud for symbol extension records. */
-static symext_chainS *symext_rootP;
-static symext_chainS *symext_lastP;
-static bfd_size_type symext_chain_size;
+static boolean elf32_hppa_relocate_section
+ PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
+ bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
-/* FIXME: We should be able to try this static variable! */
-static bfd_byte *symextn_contents;
+static int hppa_unwind_entry_compare
+ PARAMS ((const PTR, const PTR));
+static boolean elf32_hppa_finish_dynamic_symbol
+ PARAMS ((bfd *, struct bfd_link_info *,
+ struct elf_link_hash_entry *, Elf_Internal_Sym *));
-/* For linker stub hash tables. */
-#define elf32_hppa_stub_hash_lookup(table, string, create, copy) \
- ((struct elf32_hppa_stub_hash_entry *) \
- bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
-
-#define elf32_hppa_stub_hash_traverse(table, func, info) \
- (bfd_hash_traverse \
- (&(table)->root, \
- (boolean (*) PARAMS ((struct bfd_hash_entry *, PTR))) (func), \
- (info)))
-
-/* For linker args hash tables. */
-#define elf32_hppa_args_hash_lookup(table, string, create, copy) \
- ((struct elf32_hppa_args_hash_entry *) \
- bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
-
-#define elf32_hppa_args_hash_traverse(table, func, info) \
- (bfd_hash_traverse \
- (&(table)->root, \
- (boolean (*) PARAMS ((struct bfd_hash_entry *, PTR))) (func), \
- (info)))
-
-#define elf32_hppa_args_hash_table_init(table, newfunc) \
- (bfd_hash_table_init \
- (&(table)->root, \
- (struct bfd_hash_entry *(*) PARAMS ((struct bfd_hash_entry *, \
- struct bfd_hash_table *, \
- const char *))) (newfunc)))
-
-/* For HPPA linker hash table. */
-
-#define elf32_hppa_link_hash_lookup(table, string, create, copy, follow)\
- ((struct elf32_hppa_link_hash_entry *) \
- elf_link_hash_lookup (&(table)->root, (string), (create), \
- (copy), (follow)))
-
-#define elf32_hppa_link_hash_traverse(table, func, info) \
- (elf_link_hash_traverse \
- (&(table)->root, \
- (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
- (info)))
-
-/* Get the PA ELF linker hash table from a link_info structure. */
-
-#define elf32_hppa_hash_table(p) \
- ((struct elf32_hppa_link_hash_table *) ((p)->hash))
+static boolean elf32_hppa_finish_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+static void elf32_hppa_post_process_headers
+ PARAMS ((bfd *, struct bfd_link_info *));
-/* Extract specific argument location bits for WHICH from
- the full argument location in AR. */
-#define EXTRACT_ARBITS(ar, which) ((ar) >> (8 - ((which) * 2))) & 3
+static int elf32_hppa_elf_get_symbol_type
+ PARAMS ((Elf_Internal_Sym *, int));
/* Assorted hash table functions. */
/* Initialize an entry in the stub hash table. */
static struct bfd_hash_entry *
-elf32_hppa_stub_hash_newfunc (entry, table, string)
+stub_hash_newfunc (entry, table, string)
struct bfd_hash_entry *entry;
struct bfd_hash_table *table;
const char *string;
/* Allocate the structure if it has not already been allocated by a
subclass. */
if (ret == NULL)
- ret = ((struct elf32_hppa_stub_hash_entry *)
- bfd_hash_allocate (table,
- sizeof (struct elf32_hppa_stub_hash_entry)));
- if (ret == NULL)
- return NULL;
+ {
+ ret = ((struct elf32_hppa_stub_hash_entry *)
+ bfd_hash_allocate (table,
+ sizeof (struct elf32_hppa_stub_hash_entry)));
+ if (ret == NULL)
+ return NULL;
+ }
/* Call the allocation method of the superclass. */
ret = ((struct elf32_hppa_stub_hash_entry *)
if (ret)
{
/* Initialize the local fields. */
- ret->offset = 0;
+ ret->stub_sec = NULL;
+#if ! LONG_BRANCH_PIC_IN_SHLIB
+ ret->reloc_sec = NULL;
+#endif
+ ret->stub_offset = 0;
ret->target_value = 0;
ret->target_section = NULL;
+ ret->stub_type = hppa_stub_long_branch;
+ ret->h = NULL;
+ ret->id_sec = NULL;
}
return (struct bfd_hash_entry *) ret;
}
-/* Initialize a stub hash table. */
-
-static boolean
-elf32_hppa_stub_hash_table_init (table, stub_bfd, newfunc)
- struct elf32_hppa_stub_hash_table *table;
- bfd *stub_bfd;
- struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
- struct bfd_hash_table *,
- const char *));
-{
- table->offset = 0;
- table->location = 0;
- table->stub_bfd = stub_bfd;
- return (bfd_hash_table_init (&table->root, newfunc));
-}
-
-/* Initialize an entry in the argument location hash table. */
+/* Initialize an entry in the link hash table. */
static struct bfd_hash_entry *
-elf32_hppa_args_hash_newfunc (entry, table, string)
+hppa_link_hash_newfunc (entry, table, string)
struct bfd_hash_entry *entry;
struct bfd_hash_table *table;
const char *string;
{
- struct elf32_hppa_args_hash_entry *ret;
+ struct elf32_hppa_link_hash_entry *ret;
- ret = (struct elf32_hppa_args_hash_entry *) entry;
+ ret = (struct elf32_hppa_link_hash_entry *) entry;
/* Allocate the structure if it has not already been allocated by a
subclass. */
if (ret == NULL)
- ret = ((struct elf32_hppa_args_hash_entry *)
- bfd_hash_allocate (table,
- sizeof (struct elf32_hppa_args_hash_entry)));
- if (ret == NULL)
- return NULL;
+ {
+ ret = ((struct elf32_hppa_link_hash_entry *)
+ bfd_hash_allocate (table,
+ sizeof (struct elf32_hppa_link_hash_entry)));
+ if (ret == NULL)
+ return NULL;
+ }
/* Call the allocation method of the superclass. */
- ret = ((struct elf32_hppa_args_hash_entry *)
- bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
+ ret = ((struct elf32_hppa_link_hash_entry *)
+ _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
+ table, string));
- /* Initialize the local fields. */
if (ret)
- ret->arg_bits = 0;
+ {
+ /* Initialize the local fields. */
+#if ! LONG_BRANCH_PIC_IN_SHLIB
+ ret->stub_reloc_sec = NULL;
+#endif
+ ret->stub_cache = NULL;
+ ret->reloc_entries = NULL;
+ ret->maybe_pic_call = 0;
+ ret->pic_call = 0;
+ ret->plabel = 0;
+ ret->plt_abs = 0;
+ }
return (struct bfd_hash_entry *) ret;
}
bfd *abfd;
{
struct elf32_hppa_link_hash_table *ret;
+ bfd_size_type amt = sizeof (*ret);
- ret = ((struct elf32_hppa_link_hash_table *)
- bfd_alloc (abfd, sizeof (struct elf32_hppa_link_hash_table)));
+ ret = (struct elf32_hppa_link_hash_table *) bfd_alloc (abfd, amt);
if (ret == NULL)
return NULL;
- if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
- _bfd_elf_link_hash_newfunc))
+
+ if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, hppa_link_hash_newfunc))
{
bfd_release (abfd, ret);
return NULL;
}
- ret->stub_hash_table = NULL;
- ret->args_hash_table = NULL;
- ret->output_symbol_count = 0;
- ret->global_value = 0;
- ret->global_sym_defined = 0;
+
+ /* Init the stub hash table too. */
+ if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc))
+ return NULL;
+
+ ret->stub_bfd = NULL;
+ ret->add_stub_section = NULL;
+ ret->layout_sections_again = NULL;
+ ret->stub_group = NULL;
+ ret->sgot = NULL;
+ ret->srelgot = NULL;
+ ret->splt = NULL;
+ ret->srelplt = NULL;
+ ret->sdynbss = NULL;
+ ret->srelbss = NULL;
+ ret->text_segment_base = (bfd_vma) -1;
+ ret->data_segment_base = (bfd_vma) -1;
+ ret->multi_subspace = 0;
+ ret->has_12bit_branch = 0;
+ ret->has_17bit_branch = 0;
+ ret->need_plt_stub = 0;
return &ret->root.root;
}
-/* Relocate the given INSN given the various input parameters.
+/* Build a name for an entry in the stub hash table. */
- FIXME: endianness and sizeof (long) issues abound here. */
-
-static unsigned long
-hppa_elf_relocate_insn (abfd, input_sect, insn, address, sym_value,
- r_addend, r_format, r_field, pcrel)
- bfd *abfd;
- asection *input_sect;
- unsigned long insn;
- unsigned long address;
- long sym_value;
- long r_addend;
- unsigned long r_format;
- unsigned long r_field;
- unsigned long pcrel;
+static char *
+hppa_stub_name (input_section, sym_sec, hash, rel)
+ const asection *input_section;
+ const asection *sym_sec;
+ const struct elf32_hppa_link_hash_entry *hash;
+ const Elf_Internal_Rela *rel;
{
- unsigned char opcode = get_opcode (insn);
- long constant_value;
-
- switch (opcode)
- {
- case LDO:
- case LDB:
- case LDH:
- case LDW:
- case LDWM:
- case STB:
- case STH:
- case STW:
- case STWM:
- case COMICLR:
- case SUBI:
- case ADDIT:
- case ADDI:
- case LDIL:
- case ADDIL:
- constant_value = HPPA_R_CONSTANT (r_addend);
-
- if (pcrel)
- sym_value -= address;
-
- sym_value = hppa_field_adjust (sym_value, constant_value, r_field);
- return hppa_rebuild_insn (abfd, insn, sym_value, r_format);
-
- case BL:
- case BE:
- case BLE:
- /* XXX computing constant_value is not needed??? */
- constant_value = assemble_17 ((insn & 0x001f0000) >> 16,
- (insn & 0x00001ffc) >> 2,
- insn & 1);
-
- constant_value = (constant_value << 15) >> 15;
- if (pcrel)
- {
- sym_value -=
- address + input_sect->output_offset
- + input_sect->output_section->vma;
- sym_value = hppa_field_adjust (sym_value, -8, r_field);
- }
- else
- sym_value = hppa_field_adjust (sym_value, constant_value, r_field);
+ char *stub_name;
+ bfd_size_type len;
- return hppa_rebuild_insn (abfd, insn, sym_value >> 2, r_format);
-
- default:
- if (opcode == 0)
+ if (hash)
+ {
+ len = 8 + 1 + strlen (hash->elf.root.root.string) + 1 + 8 + 1;
+ stub_name = bfd_malloc (len);
+ if (stub_name != NULL)
{
- constant_value = HPPA_R_CONSTANT (r_addend);
-
- if (pcrel)
- sym_value -= address;
-
- return hppa_field_adjust (sym_value, constant_value, r_field);
+ sprintf (stub_name, "%08x_%s+%x",
+ input_section->id & 0xffffffff,
+ hash->elf.root.root.string,
+ (int) rel->r_addend & 0xffffffff);
}
- else
- abort ();
}
-}
-
-/* Relocate an HPPA ELF section. */
-
-static boolean
-elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section,
- contents, relocs, local_syms, local_sections)
- bfd *output_bfd;
- struct bfd_link_info *info;
- bfd *input_bfd;
- asection *input_section;
- bfd_byte *contents;
- Elf_Internal_Rela *relocs;
- Elf_Internal_Sym *local_syms;
- asection **local_sections;
-{
- Elf_Internal_Shdr *symtab_hdr;
- Elf_Internal_Rela *rel;
- Elf_Internal_Rela *relend;
-
- symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
-
- rel = relocs;
- relend = relocs + input_section->reloc_count;
- for (; rel < relend; rel++)
+ else
{
- int r_type;
- reloc_howto_type *howto;
- unsigned long r_symndx;
- struct elf_link_hash_entry *h;
- Elf_Internal_Sym *sym;
- asection *sym_sec;
- bfd_vma relocation;
- bfd_reloc_status_type r;
- const char *sym_name;
-
- r_type = ELF32_R_TYPE (rel->r_info);
- if (r_type < 0 || r_type >= (int) R_PARISC_UNIMPLEMENTED)
+ len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
+ stub_name = bfd_malloc (len);
+ if (stub_name != NULL)
{
- bfd_set_error (bfd_error_bad_value);
- return false;
+ sprintf (stub_name, "%08x_%x:%x+%x",
+ input_section->id & 0xffffffff,
+ sym_sec->id & 0xffffffff,
+ (int) ELF32_R_SYM (rel->r_info) & 0xffffffff,
+ (int) rel->r_addend & 0xffffffff);
}
- howto = elf_hppa_howto_table + r_type;
+ }
+ return stub_name;
+}
- r_symndx = ELF32_R_SYM (rel->r_info);
+/* Look up an entry in the stub hash. Stub entries are cached because
+ creating the stub name takes a bit of time. */
- if (info->relocateable)
- {
- /* This is a relocateable link. We don't have to change
- anything, unless the reloc is against a section symbol,
- in which case we have to adjust according to where the
- section symbol winds up in the output section. */
- if (r_symndx < symtab_hdr->sh_info)
- {
- sym = local_syms + r_symndx;
- if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
- {
- sym_sec = local_sections[r_symndx];
- rel->r_addend += sym_sec->output_offset;
- }
- }
+static struct elf32_hppa_stub_hash_entry *
+hppa_get_stub_entry (input_section, sym_sec, hash, rel, hplink)
+ const asection *input_section;
+ const asection *sym_sec;
+ struct elf32_hppa_link_hash_entry *hash;
+ const Elf_Internal_Rela *rel;
+ struct elf32_hppa_link_hash_table *hplink;
+{
+ struct elf32_hppa_stub_hash_entry *stub_entry;
+ const asection *id_sec;
+
+ /* If this input section is part of a group of sections sharing one
+ stub section, then use the id of the first section in the group.
+ Stub names need to include a section id, as there may well be
+ more than one stub used to reach say, printf, and we need to
+ distinguish between them. */
+ id_sec = hplink->stub_group[input_section->id].link_sec;
+
+ if (hash != NULL && hash->stub_cache != NULL
+ && hash->stub_cache->h == hash
+ && hash->stub_cache->id_sec == id_sec)
+ {
+ stub_entry = hash->stub_cache;
+ }
+ else
+ {
+ char *stub_name;
- continue;
- }
+ stub_name = hppa_stub_name (id_sec, sym_sec, hash, rel);
+ if (stub_name == NULL)
+ return NULL;
- /* This is a final link. */
- h = NULL;
- sym = NULL;
- sym_sec = NULL;
- if (r_symndx < symtab_hdr->sh_info)
+ stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table,
+ stub_name, false, false);
+ if (stub_entry == NULL)
{
- sym = local_syms + r_symndx;
- sym_sec = local_sections[r_symndx];
- relocation = ((ELF_ST_TYPE (sym->st_info) == STT_SECTION
- ? 0 : sym->st_value)
- + sym_sec->output_offset
- + sym_sec->output_section->vma);
+ if (hash == NULL || hash->elf.root.type != bfd_link_hash_undefweak)
+ (*_bfd_error_handler) (_("%s(%s+0x%lx): cannot find stub entry %s"),
+ bfd_get_filename (input_section->owner),
+ input_section->name,
+ (long) rel->r_offset,
+ stub_name);
}
else
{
- long indx;
-
- indx = r_symndx - symtab_hdr->sh_info;
- h = elf_sym_hashes (input_bfd)[indx];
- while (h->root.type == bfd_link_hash_indirect
- || h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
- if (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- {
- sym_sec = h->root.u.def.section;
- relocation = (h->root.u.def.value
- + sym_sec->output_offset
- + sym_sec->output_section->vma);
- }
- else if (h->root.type == bfd_link_hash_undefweak)
- relocation = 0;
- else
- {
- if (!((*info->callbacks->undefined_symbol)
- (info, h->root.root.string, input_bfd,
- input_section, rel->r_offset)))
- return false;
- break;
- }
+ if (hash != NULL)
+ hash->stub_cache = stub_entry;
}
- if (h != NULL)
- sym_name = h->root.root.string;
- else
- {
- sym_name = bfd_elf_string_from_elf_section (input_bfd,
- symtab_hdr->sh_link,
- sym->st_name);
- if (sym_name == NULL)
- return false;
- if (*sym_name == '\0')
- sym_name = bfd_section_name (input_bfd, sym_sec);
- }
+ free (stub_name);
+ }
- /* If args_hash_table is NULL, then we have encountered some
- kind of link error (ex. undefined symbols). Do not try to
- apply any relocations, continue the loop so we can notify
- the user of several errors in a single attempted link. */
- if (elf32_hppa_hash_table (info)->args_hash_table == NULL)
- continue;
+ return stub_entry;
+}
- r = elf32_hppa_bfd_final_link_relocate (howto, input_bfd, output_bfd,
- input_section, contents,
- rel->r_offset, relocation,
- rel->r_addend, info, sym_sec,
- sym_name, h == NULL);
+/* Add a new stub entry to the stub hash. Not all fields of the new
+ stub entry are initialised. */
+
+static struct elf32_hppa_stub_hash_entry *
+hppa_add_stub (stub_name, section, hplink)
+ const char *stub_name;
+ asection *section;
+ struct elf32_hppa_link_hash_table *hplink;
+{
+ asection *link_sec;
+ asection *stub_sec;
+ struct elf32_hppa_stub_hash_entry *stub_entry;
- if (r != bfd_reloc_ok)
+ link_sec = hplink->stub_group[section->id].link_sec;
+ stub_sec = hplink->stub_group[section->id].stub_sec;
+ if (stub_sec == NULL)
+ {
+ stub_sec = hplink->stub_group[link_sec->id].stub_sec;
+ if (stub_sec == NULL)
{
- switch (r)
- {
- /* This can happen for DP relative relocs if $global$ is
- undefined. This is a panic situation so we don't try
- to continue. */
- case bfd_reloc_undefined:
- case bfd_reloc_notsupported:
- if (!((*info->callbacks->undefined_symbol)
- (info, "$global$", input_bfd,
- input_section, rel->r_offset)))
- return false;
- return false;
- case bfd_reloc_dangerous:
- {
- /* We use this return value to indicate that we performed
- a "dangerous" relocation. This doesn't mean we did
- the wrong thing, it just means there may be some cleanup
- that needs to be done here.
-
- In particular we had to swap the last call insn and its
- delay slot. If the delay slot insn needed a relocation,
- then we'll need to adjust the next relocation entry's
- offset to account for the fact that the insn moved.
-
- This hair wouldn't be necessary if we inserted stubs
- between procedures and used a "bl" to get to the stub. */
- if (rel != relend)
- {
- Elf_Internal_Rela *next_rel = rel + 1;
-
- if (rel->r_offset + 4 == next_rel->r_offset)
- next_rel->r_offset -= 4;
- }
- break;
- }
- default:
- case bfd_reloc_outofrange:
- case bfd_reloc_overflow:
- {
- if (!((*info->callbacks->reloc_overflow)
- (info, sym_name, howto->name, (bfd_vma) 0,
- input_bfd, input_section, rel->r_offset)))
- return false;
- }
- break;
- }
+ bfd_size_type len;
+ char *s_name;
+
+ len = strlen (link_sec->name) + sizeof (STUB_SUFFIX);
+ s_name = bfd_alloc (hplink->stub_bfd, len);
+ if (s_name == NULL)
+ return NULL;
+
+ strcpy (s_name, link_sec->name);
+ strcpy (s_name + len - sizeof (STUB_SUFFIX), STUB_SUFFIX);
+ stub_sec = (*hplink->add_stub_section) (s_name, link_sec);
+ if (stub_sec == NULL)
+ return NULL;
+ hplink->stub_group[link_sec->id].stub_sec = stub_sec;
}
+ hplink->stub_group[section->id].stub_sec = stub_sec;
}
- return true;
+ /* Enter this entry into the linker stub hash table. */
+ stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table, stub_name,
+ true, false);
+ if (stub_entry == NULL)
+ {
+ (*_bfd_error_handler) (_("%s: cannot create stub entry %s"),
+ bfd_get_filename (section->owner),
+ stub_name);
+ return NULL;
+ }
+
+ stub_entry->stub_sec = stub_sec;
+#if ! LONG_BRANCH_PIC_IN_SHLIB
+ stub_entry->reloc_sec = hplink->stub_group[section->id].reloc_sec;
+#endif
+ stub_entry->stub_offset = 0;
+ stub_entry->id_sec = link_sec;
+ return stub_entry;
}
-/* Return one (or more) BFD relocations which implement the base
- relocation with modifications based on format and field. */
+/* Determine the type of stub needed, if any, for a call. */
-elf32_hppa_reloc_type **
-hppa_elf_gen_reloc_type (abfd, base_type, format, field, ignore, sym)
- bfd *abfd;
- elf32_hppa_reloc_type base_type;
- int format;
- int field;
- int ignore;
- asymbol *sym;
+static enum elf32_hppa_stub_type
+hppa_type_of_stub (input_sec, rel, hash, destination)
+ asection *input_sec;
+ const Elf_Internal_Rela *rel;
+ struct elf32_hppa_link_hash_entry *hash;
+ bfd_vma destination;
{
- elf32_hppa_reloc_type *finaltype;
- elf32_hppa_reloc_type **final_types;
-
- /* Allocate slots for the BFD relocation. */
- final_types = ((elf32_hppa_reloc_type **)
- bfd_alloc (abfd, sizeof (elf32_hppa_reloc_type *) * 2));
- if (final_types == NULL)
- return NULL;
-
- /* Allocate space for the relocation itself. */
- finaltype = ((elf32_hppa_reloc_type *)
- bfd_alloc (abfd, sizeof (elf32_hppa_reloc_type)));
- if (finaltype == NULL)
- return NULL;
+ bfd_vma location;
+ bfd_vma branch_offset;
+ bfd_vma max_branch_offset;
+ unsigned int r_type;
+
+ if (hash != NULL
+ && (((hash->elf.root.type == bfd_link_hash_defined
+ || hash->elf.root.type == bfd_link_hash_defweak)
+ && hash->elf.root.u.def.section->output_section == NULL)
+ || (hash->elf.root.type == bfd_link_hash_defweak
+ && hash->elf.dynindx != -1
+ && hash->elf.plt.offset != (bfd_vma) -1)
+ || hash->elf.root.type == bfd_link_hash_undefweak
+ || hash->elf.root.type == bfd_link_hash_undefined
+ || (hash->maybe_pic_call && !(input_sec->flags & SEC_HAS_GOT_REF))))
+ {
+ /* If output_section is NULL, then it's a symbol defined in a
+ shared library. We will need an import stub. Decide between
+ hppa_stub_import and hppa_stub_import_shared later. For
+ shared links we need stubs for undefined or weak syms too;
+ They will presumably be resolved by the dynamic linker. */
+ return hppa_stub_import;
+ }
- /* Some reasonable defaults. */
- final_types[0] = finaltype;
- final_types[1] = NULL;
+ /* Determine where the call point is. */
+ location = (input_sec->output_offset
+ + input_sec->output_section->vma
+ + rel->r_offset);
-#define final_type finaltype[0]
+ branch_offset = destination - location - 8;
+ r_type = ELF32_R_TYPE (rel->r_info);
- final_type = base_type;
+ /* Determine if a long branch stub is needed. parisc branch offsets
+ are relative to the second instruction past the branch, ie. +8
+ bytes on from the branch instruction location. The offset is
+ signed and counts in units of 4 bytes. */
+ if (r_type == (unsigned int) R_PARISC_PCREL17F)
+ {
+ max_branch_offset = (1 << (17-1)) << 2;
+ }
+ else if (r_type == (unsigned int) R_PARISC_PCREL12F)
+ {
+ max_branch_offset = (1 << (12-1)) << 2;
+ }
+ else /* R_PARISC_PCREL22F. */
+ {
+ max_branch_offset = (1 << (22-1)) << 2;
+ }
- /* Just a tangle of nested switch statements to deal with the braindamage
- that a different field selector means a completely different relocation
- for PA ELF. */
- switch (base_type)
+ if (branch_offset + max_branch_offset >= 2*max_branch_offset)
{
- case R_HPPA:
- case R_HPPA_ABS_CALL:
- switch (format)
+#if LONG_BRANCH_VIA_PLT
+ if (hash != NULL
+ && hash->elf.dynindx != -1
+ && hash->elf.plt.offset != (bfd_vma) -1
+ && hash->elf.type != STT_PARISC_MILLI)
{
- case 14:
- switch (field)
- {
- case e_rsel:
- case e_rrsel:
- final_type = R_PARISC_DIR14R;
- break;
- case e_rtsel:
- final_type = R_PARISC_DLTREL14R;
- break;
- case e_tsel:
- final_type = R_PARISC_DLTREL14F;
- break;
- case e_rpsel:
- final_type = R_PARISC_PLABEL14R;
- break;
- default:
- return NULL;
- }
- break;
-
- case 17:
- switch (field)
- {
- case e_fsel:
- final_type = R_PARISC_DIR17F;
- break;
- case e_rsel:
- case e_rrsel:
- final_type = R_PARISC_DIR17R;
- break;
- default:
- return NULL;
- }
- break;
-
- case 21:
- switch (field)
- {
- case e_lsel:
- case e_lrsel:
- final_type = R_PARISC_DIR21L;
- break;
- case e_ltsel:
- final_type = R_PARISC_DLTREL21L;
- break;
- case e_lpsel:
- final_type = R_PARISC_PLABEL21L;
- break;
- default:
- return NULL;
- }
- break;
-
- case 32:
- switch (field)
- {
- case e_fsel:
- final_type = R_PARISC_DIR32;
- break;
- case e_psel:
- final_type = R_PARISC_PLABEL32;
- break;
- default:
- return NULL;
- }
- break;
-
- default:
- return NULL;
- }
- break;
-
-
- case R_HPPA_GOTOFF:
- switch (format)
- {
- case 14:
- switch (field)
- {
- case e_rsel:
- case e_rrsel:
- final_type = R_PARISC_DPREL14R;
- break;
- case e_fsel:
- final_type = R_PARISC_DPREL14F;
- break;
- default:
- return NULL;
- }
- break;
-
- case 21:
- switch (field)
- {
- case e_lrsel:
- case e_lsel:
- final_type = R_PARISC_DPREL21L;
- break;
- default:
- return NULL;
- }
- break;
-
- default:
- return NULL;
+ /* If we are doing a shared link and find we need a long
+ branch stub, then go via the .plt if possible. */
+ return hppa_stub_import;
}
- break;
+ else
+#endif
+ return hppa_stub_long_branch;
+ }
+ return hppa_stub_none;
+}
+/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
+ IN_ARG contains the link info pointer. */
- case R_HPPA_PCREL_CALL:
- switch (format)
- {
- case 14:
- switch (field)
- {
- case e_rsel:
- case e_rrsel:
- final_type = R_PARISC_PCREL14R;
- break;
- case e_fsel:
- final_type = R_PARISC_PCREL14F;
- break;
- default:
- return NULL;
- }
- break;
+#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
+#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
- case 17:
- switch (field)
- {
- case e_rsel:
- case e_rrsel:
- final_type = R_PARISC_PCREL17R;
- break;
- case e_fsel:
- final_type = R_PARISC_PCREL17F;
- break;
- default:
- return NULL;
- }
- break;
+#define BL_R1 0xe8200000 /* b,l .+8,%r1 */
+#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
+#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
- case 21:
- switch (field)
- {
- case e_lsel:
- case e_lrsel:
- final_type = R_PARISC_PCREL21L;
- break;
- default:
- return NULL;
- }
- break;
+#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
+#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
+#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
+#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
- default:
- return NULL;
- }
- break;
+#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
+#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
- default:
- return NULL;
- }
+#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
+#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
+#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
+#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
- return final_types;
-}
+#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
+#define NOP 0x08000240 /* nop */
+#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
+#define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
+#define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
-#undef final_type
+#ifndef R19_STUBS
+#define R19_STUBS 1
+#endif
-/* Set the contents of a particular section at a particular location. */
+#if R19_STUBS
+#define LDW_R1_DLT LDW_R1_R19
+#else
+#define LDW_R1_DLT LDW_R1_DP
+#endif
static boolean
-elf32_hppa_set_section_contents (abfd, section, location, offset, count)
- bfd *abfd;
- sec_ptr section;
- PTR location;
- file_ptr offset;
- bfd_size_type count;
+hppa_build_one_stub (gen_entry, in_arg)
+ struct bfd_hash_entry *gen_entry;
+ PTR in_arg;
{
- /* Ignore write requests for the symbol extension section until we've
- had the chance to rebuild it ourselves. */
- if (!strcmp (section->name, ".PARISC.symextn") && !symext_chain_size)
- return true;
- else
- return _bfd_elf_set_section_contents (abfd, section, location,
- offset, count);
-}
+ struct elf32_hppa_stub_hash_entry *stub_entry;
+ struct bfd_link_info *info;
+ struct elf32_hppa_link_hash_table *hplink;
+ asection *stub_sec;
+ bfd *stub_bfd;
+ bfd_byte *loc;
+ bfd_vma sym_value;
+ bfd_vma insn;
+ bfd_vma off;
+ int val;
+ int size;
-/* Translate from an elf into field into a howto relocation pointer. */
+ /* Massage our args to the form they really have. */
+ stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry;
+ info = (struct bfd_link_info *) in_arg;
-static void
-elf32_hppa_info_to_howto (abfd, cache_ptr, dst)
- bfd *abfd;
- arelent *cache_ptr;
- Elf32_Internal_Rela *dst;
-{
- BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_PARISC_UNIMPLEMENTED);
- cache_ptr->howto = &elf_hppa_howto_table[ELF32_R_TYPE (dst->r_info)];
-}
+ hplink = hppa_link_hash_table (info);
+ stub_sec = stub_entry->stub_sec;
+ /* Make a note of the offset within the stubs for this entry. */
+ stub_entry->stub_offset = stub_sec->_raw_size;
+ loc = stub_sec->contents + stub_entry->stub_offset;
-/* Actually perform a relocation. NOTE this is (mostly) superceeded
- by elf32_hppa_bfd_final_link_relocate which is called by the new
- fast linker. */
+ stub_bfd = stub_sec->owner;
-static bfd_reloc_status_type
-hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
- error_message)
- bfd *abfd;
- arelent *reloc_entry;
- asymbol *symbol_in;
- PTR data;
- asection *input_section;
- bfd *output_bfd;
- char **error_message;
-{
- /* It is no longer valid to call hppa_elf_reloc when creating
- a final executable. */
- if (output_bfd)
+ switch (stub_entry->stub_type)
{
- reloc_entry->address += input_section->output_offset;
+ case hppa_stub_long_branch:
+ /* Create the long branch. A long branch is formed with "ldil"
+ loading the upper bits of the target address into a register,
+ then branching with "be" which adds in the lower bits.
+ The "be" has its delay slot nullified. */
+ sym_value = (stub_entry->target_value
+ + stub_entry->target_section->output_offset
+ + stub_entry->target_section->output_section->vma);
+
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel);
+ insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
+ bfd_put_32 (stub_bfd, insn, loc);
- /* Work around lossage in generic elf code to write relocations.
- (maps different section symbols into the same symbol index). */
- if ((symbol_in->flags & BSF_SECTION_SYM)
- && symbol_in->section)
- reloc_entry->addend += symbol_in->section->output_offset;
- return bfd_reloc_ok;
- }
- else
- {
- *error_message = (char *) _("Unsupported call to hppa_elf_reloc");
- return bfd_reloc_notsupported;
- }
-}
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel) >> 2;
+ insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
+ bfd_put_32 (stub_bfd, insn, loc + 4);
-/* Actually perform a relocation as part of a final link. This can get
- rather hairy when linker stubs are needed. */
+#if ! LONG_BRANCH_PIC_IN_SHLIB
+ if (info->shared)
+ {
+ /* Output a dynamic relocation for this stub. We only
+ output one PCREL21L reloc per stub, trusting that the
+ dynamic linker will also fix the implied PCREL17R for the
+ second instruction. PCREL21L dynamic relocs had better
+ never be emitted for some other purpose... */
+ asection *srel;
+ Elf_Internal_Rela outrel;
+
+ if (stub_entry->h == NULL)
+ {
+ (*_bfd_error_handler)
+ (_("%s(%s+0x%lx): cannot relocate %s, recompile with -ffunction-sections"),
+ bfd_get_filename (stub_entry->target_section->owner),
+ stub_sec->name,
+ (long) stub_entry->stub_offset,
+ stub_entry->root.string);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
-static bfd_reloc_status_type
-elf32_hppa_bfd_final_link_relocate (howto, input_bfd, output_bfd,
- input_section, contents, offset, value,
- addend, info, sym_sec, sym_name, is_local)
- reloc_howto_type *howto;
- bfd *input_bfd;
- bfd *output_bfd;
- asection *input_section;
- bfd_byte *contents;
- bfd_vma offset;
- bfd_vma value;
- bfd_vma addend;
- struct bfd_link_info *info;
- asection *sym_sec;
- const char *sym_name;
- int is_local;
-{
- unsigned long insn;
- unsigned long r_type = howto->type;
- unsigned long r_format = howto->bitsize;
- unsigned long r_field = e_fsel;
- bfd_byte *hit_data = contents + offset;
- boolean r_pcrel = howto->pc_relative;
+ srel = stub_entry->reloc_sec;
+ if (srel == NULL)
+ {
+ (*_bfd_error_handler)
+ (_("Could not find relocation section for %s"),
+ stub_sec->name);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
- insn = bfd_get_32 (input_bfd, hit_data);
+ outrel.r_offset = (stub_entry->stub_offset
+ + stub_sec->output_offset
+ + stub_sec->output_section->vma);
+ outrel.r_info = ELF32_R_INFO (0, R_PARISC_PCREL21L);
+ outrel.r_addend = sym_value;
+ bfd_elf32_swap_reloca_out (stub_sec->output_section->owner,
+ &outrel,
+ ((Elf32_External_Rela *)
+ srel->contents + srel->reloc_count));
+ ++srel->reloc_count;
+ }
+#endif
+ size = 8;
+ break;
- /* Make sure we have a value for $global$. FIXME isn't this effectively
- just like the gp pointer on MIPS? Can we use those routines for this
- purpose? */
- if (!elf32_hppa_hash_table (info)->global_sym_defined)
- {
- struct elf_link_hash_entry *h;
- asection *sec;
+ case hppa_stub_long_branch_shared:
+ /* Branches are relative. This is where we are going to. */
+ sym_value = (stub_entry->target_value
+ + stub_entry->target_section->output_offset
+ + stub_entry->target_section->output_section->vma);
- h = elf_link_hash_lookup (elf_hash_table (info), "$global$", false,
- false, false);
+ /* And this is where we are coming from, more or less. */
+ sym_value -= (stub_entry->stub_offset
+ + stub_sec->output_offset
+ + stub_sec->output_section->vma);
- /* If there isn't a $global$, then we're in deep trouble. */
- if (h == NULL)
- return bfd_reloc_notsupported;
+ bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
+ insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
+ bfd_put_32 (stub_bfd, insn, loc + 4);
- /* If $global$ isn't a defined symbol, then we're still in deep
- trouble. */
- if (h->root.type != bfd_link_hash_defined)
- return bfd_reloc_undefined;
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
+ insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
+ bfd_put_32 (stub_bfd, insn, loc + 8);
+ size = 12;
+ break;
- sec = h->root.u.def.section;
- elf32_hppa_hash_table (info)->global_value = (h->root.u.def.value
- + sec->output_section->vma
- + sec->output_offset);
- elf32_hppa_hash_table (info)->global_sym_defined = 1;
- }
+ case hppa_stub_import:
+ case hppa_stub_import_shared:
+ off = stub_entry->h->elf.plt.offset;
+ if (off >= (bfd_vma) -2)
+ abort ();
- switch (r_type)
- {
- case R_PARISC_NONE:
- break;
+ off &= ~ (bfd_vma) 1;
+ sym_value = (off
+ + hplink->splt->output_offset
+ + hplink->splt->output_section->vma
+ - elf_gp (hplink->splt->output_section->owner));
+
+ insn = ADDIL_DP;
+#if R19_STUBS
+ if (stub_entry->stub_type == hppa_stub_import_shared)
+ insn = ADDIL_R19;
+#endif
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel),
+ insn = hppa_rebuild_insn ((int) insn, val, 21);
+ bfd_put_32 (stub_bfd, insn, loc);
- case R_PARISC_DIR32:
- case R_PARISC_DIR17F:
- case R_PARISC_PCREL17C:
- r_field = e_fsel;
- goto do_basic_type_1;
- case R_PARISC_DIR21L:
- case R_PARISC_PCREL21L:
- r_field = e_lrsel;
- goto do_basic_type_1;
- case R_PARISC_DIR17R:
- case R_PARISC_PCREL17R:
- case R_PARISC_DIR14R:
- case R_PARISC_PCREL14R:
- r_field = e_rrsel;
- goto do_basic_type_1;
+ /* It is critical to use lrsel/rrsel here because we are using
+ two different offsets (+0 and +4) from sym_value. If we use
+ lsel/rsel then with unfortunate sym_values we will round
+ sym_value+4 up to the next 2k block leading to a mis-match
+ between the lsel and rsel value. */
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel);
+ insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
+ bfd_put_32 (stub_bfd, insn, loc + 4);
- /* For all the DP relative relocations, we need to examine the symbol's
- section. If it's a code section, then "data pointer relative" makes
- no sense. In that case we don't adjust the "value", and for 21 bit
- addil instructions, we change the source addend register from %dp to
- %r0. */
- case R_PARISC_DPREL21L:
- r_field = e_lrsel;
- if (sym_sec->flags & SEC_CODE)
+ if (hplink->multi_subspace)
{
- if ((insn & 0xfc000000) >> 26 == 0xa
- && (insn & 0x03e00000) >> 21 == 0x1b)
- insn &= ~0x03e00000;
- }
- else
- value -= elf32_hppa_hash_table (info)->global_value;
- goto do_basic_type_1;
- case R_PARISC_DPREL14R:
- r_field = e_rrsel;
- if ((sym_sec->flags & SEC_CODE) == 0)
- value -= elf32_hppa_hash_table (info)->global_value;
- goto do_basic_type_1;
- case R_PARISC_DPREL14F:
- r_field = e_fsel;
- if ((sym_sec->flags & SEC_CODE) == 0)
- value -= elf32_hppa_hash_table (info)->global_value;
- goto do_basic_type_1;
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
+ insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
+ bfd_put_32 (stub_bfd, insn, loc + 8);
- /* These cases are separate as they may involve a lot more work
- to deal with linker stubs. */
- case R_PARISC_PLABEL32:
- case R_PARISC_PLABEL21L:
- case R_PARISC_PLABEL14R:
- case R_PARISC_PCREL17F:
- {
- bfd_vma location;
- unsigned int len, caller_args, callee_args;
- arg_reloc_type arg_reloc_types[5];
- struct elf32_hppa_args_hash_table *args_hash_table;
- struct elf32_hppa_args_hash_entry *args_hash;
- char *new_name, *stub_name;
-
- /* Get the field selector right. We'll need it in a minute. */
- if (r_type == R_PARISC_PCREL17F
- || r_type == R_PARISC_PLABEL32)
- r_field = e_fsel;
- else if (r_type == R_PARISC_PLABEL21L)
- r_field = e_lrsel;
- else if (r_type == R_PARISC_PLABEL14R)
- r_field = e_rrsel;
-
- /* Find out where we are and where we're going. */
- location = (offset +
- input_section->output_offset +
- input_section->output_section->vma);
-
- /* Now look for the argument relocation bits associated with the
- target. */
- len = strlen (sym_name) + 1;
- if (is_local)
- len += 9;
- new_name = bfd_malloc (len);
- if (!new_name)
- return bfd_reloc_notsupported;
- strcpy (new_name, sym_name);
-
- /* Local symbols have unique IDs. */
- if (is_local)
- sprintf (new_name + len - 10, "_%08x", (int)sym_sec);
-
- args_hash_table = elf32_hppa_hash_table (info)->args_hash_table;
-
- args_hash = elf32_hppa_args_hash_lookup (args_hash_table,
- new_name, false, false);
- if (args_hash == NULL)
- callee_args = 0;
- else
- callee_args = args_hash->arg_bits;
-
- /* If this is a CALL relocation, then get the caller's bits
- from the addend. Else use the magic 0x155 value for PLABELS.
-
- Also we don't care about the destination (value) for PLABELS. */
- if (r_type == R_PARISC_PCREL17F)
- caller_args = HPPA_R_ARG_RELOC (addend);
- else
- {
- caller_args = 0x155;
- location = value;
- }
+ bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
+ bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
+ bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
+ bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
- /* Any kind of linker stub needed? */
- if (((int)(value - location) > 0x3ffff)
- || ((int)(value - location) < (int)0xfffc0000)
- || elf32_hppa_arg_reloc_needed (caller_args, callee_args,
- arg_reloc_types))
- {
- struct elf32_hppa_stub_hash_table *stub_hash_table;
- struct elf32_hppa_stub_hash_entry *stub_hash;
- asection *stub_section;
+ size = 28;
+ }
+ else
+ {
+ bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
+ insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
+ bfd_put_32 (stub_bfd, insn, loc + 12);
- /* Build a name for the stub. */
+ size = 16;
+ }
- len = strlen (new_name);
- len += 23;
- stub_name = bfd_malloc (len);
- if (!stub_name)
- return bfd_reloc_notsupported;
- elf32_hppa_name_of_stub (caller_args, callee_args,
- location, value, stub_name);
- strcat (stub_name, new_name);
- free (new_name);
+ if (!info->shared
+ && stub_entry->h != NULL
+ && stub_entry->h->pic_call)
+ {
+ /* Build the .plt entry needed to call a PIC function from
+ statically linked code. We don't need any relocs. */
+ bfd *dynobj;
+ struct elf32_hppa_link_hash_entry *eh;
+ bfd_vma value;
+
+ dynobj = hplink->root.dynobj;
+ eh = (struct elf32_hppa_link_hash_entry *) stub_entry->h;
+
+ if (eh->elf.root.type != bfd_link_hash_defined
+ && eh->elf.root.type != bfd_link_hash_defweak)
+ abort ();
+
+ value = (eh->elf.root.u.def.value
+ + eh->elf.root.u.def.section->output_offset
+ + eh->elf.root.u.def.section->output_section->vma);
+
+ /* Fill in the entry in the procedure linkage table.
+
+ The format of a plt entry is
+ <funcaddr>
+ <__gp>. */
+
+ bfd_put_32 (hplink->splt->owner, value,
+ hplink->splt->contents + off);
+ value = elf_gp (hplink->splt->output_section->owner);
+ bfd_put_32 (hplink->splt->owner, value,
+ hplink->splt->contents + off + 4);
+ }
+ break;
- stub_hash_table = elf32_hppa_hash_table (info)->stub_hash_table;
+ case hppa_stub_export:
+ /* Branches are relative. This is where we are going to. */
+ sym_value = (stub_entry->target_value
+ + stub_entry->target_section->output_offset
+ + stub_entry->target_section->output_section->vma);
- stub_hash
- = elf32_hppa_stub_hash_lookup (stub_hash_table, stub_name,
- false, false);
+ /* And this is where we are coming from. */
+ sym_value -= (stub_entry->stub_offset
+ + stub_sec->output_offset
+ + stub_sec->output_section->vma);
- /* We're done with that name. */
- free (stub_name);
+ if (sym_value - 8 + 0x40000 >= 0x80000)
+ {
+ (*_bfd_error_handler)
+ (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
+ bfd_get_filename (stub_entry->target_section->owner),
+ stub_sec->name,
+ (long) stub_entry->stub_offset,
+ stub_entry->root.string);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
- /* The stub BFD only has one section. */
- stub_section = stub_hash_table->stub_bfd->sections;
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
+ insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
+ bfd_put_32 (stub_bfd, insn, loc);
- if (stub_hash != NULL)
- {
+ bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
+ bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
+ bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
+ bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
+ bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
- if (r_type == R_PARISC_PCREL17F)
- {
- unsigned long delay_insn;
- unsigned int opcode, rtn_reg, ldo_target_reg, ldo_src_reg;
-
- /* We'll need to peek at the next insn. */
- delay_insn = bfd_get_32 (input_bfd, hit_data + 4);
- opcode = get_opcode (delay_insn);
-
- /* We also need to know the return register for this
- call. */
- rtn_reg = (insn & 0x03e00000) >> 21;
-
- ldo_src_reg = (delay_insn & 0x03e00000) >> 21;
- ldo_target_reg = (delay_insn & 0x001f0000) >> 16;
-
- /* Munge up the value and other parameters for
- hppa_elf_relocate_insn. */
-
- value = (stub_hash->offset
- + stub_section->output_offset
- + stub_section->output_section->vma);
-
- r_format = 17;
- r_field = e_fsel;
- r_pcrel = 0;
- addend = 0;
-
- /* We need to peek at the delay insn and determine if
- we'll need to swap the branch and its delay insn. */
- if ((insn & 2)
- || (opcode == LDO
- && ldo_target_reg == rtn_reg)
- || (delay_insn == 0x08000240))
- {
- /* No need to swap the branch and its delay slot, but
- we do need to make sure to jump past the return
- pointer update in the stub. */
- value += 4;
-
- /* If the delay insn does a return pointer adjustment,
- then we have to make sure it stays valid. */
- if (opcode == LDO
- && ldo_target_reg == rtn_reg)
- {
- delay_insn &= 0xfc00ffff;
- delay_insn |= ((31 << 21) | (31 << 16));
- bfd_put_32 (input_bfd, delay_insn, hit_data + 4);
- }
- /* Use a BLE to reach the stub. */
- insn = BLE_SR4_R0;
- }
- else
- {
- /* Wonderful, we have to swap the call insn and its
- delay slot. */
- bfd_put_32 (input_bfd, delay_insn, hit_data);
- /* Use a BLE,n to reach the stub. */
- insn = (BLE_SR4_R0 | 0x2);
- bfd_put_32 (input_bfd, insn, hit_data + 4);
- insn = hppa_elf_relocate_insn (input_bfd,
- input_section,
- insn, offset + 4,
- value, addend,
- r_format, r_field,
- r_pcrel);
- /* Update the instruction word. */
- bfd_put_32 (input_bfd, insn, hit_data + 4);
- return bfd_reloc_dangerous;
- }
- }
- else
- {
- /* PLABEL stuff is easy. */
-
- value = (stub_hash->offset
- + stub_section->output_offset
- + stub_section->output_section->vma);
- /* We don't need the RP adjustment for PLABELs. */
- value += 4;
- if (r_type == R_PARISC_PLABEL32)
- r_format = 32;
- else if (r_type == R_PARISC_PLABEL21L)
- r_format = 21;
- else if (r_type == R_PARISC_PLABEL14R)
- r_format = 14;
-
- r_pcrel = 0;
- addend = 0;
- }
- }
- else
- return bfd_reloc_notsupported;
- }
- goto do_basic_type_1;
- }
+ /* Point the function symbol at the stub. */
+ stub_entry->h->elf.root.u.def.section = stub_sec;
+ stub_entry->h->elf.root.u.def.value = stub_sec->_raw_size;
-do_basic_type_1:
- insn = hppa_elf_relocate_insn (input_bfd, input_section, insn,
- offset, value, addend, r_format,
- r_field, r_pcrel);
+ size = 24;
break;
- /* Something we don't know how to handle. */
default:
- return bfd_reloc_notsupported;
+ BFD_FAIL ();
+ return false;
}
- /* Update the instruction word. */
- bfd_put_32 (input_bfd, insn, hit_data);
- return (bfd_reloc_ok);
+ stub_sec->_raw_size += size;
+ return true;
}
-/* Return the address of the howto table entry to perform the CODE
- relocation for an ARCH machine. */
+#undef LDIL_R1
+#undef BE_SR4_R1
+#undef BL_R1
+#undef ADDIL_R1
+#undef DEPI_R1
+#undef ADDIL_DP
+#undef LDW_R1_R21
+#undef LDW_R1_DLT
+#undef LDW_R1_R19
+#undef ADDIL_R19
+#undef LDW_R1_DP
+#undef LDSID_R21_R1
+#undef MTSP_R1
+#undef BE_SR0_R21
+#undef STW_RP
+#undef BV_R0_R21
+#undef BL_RP
+#undef NOP
+#undef LDW_RP
+#undef LDSID_RP_R1
+#undef BE_SR0_RP
+
+/* As above, but don't actually build the stub. Just bump offset so
+ we know stub section sizes. */
-static reloc_howto_type *
-elf_hppa_reloc_type_lookup (abfd, code)
- bfd *abfd;
- bfd_reloc_code_real_type code;
+static boolean
+hppa_size_one_stub (gen_entry, in_arg)
+ struct bfd_hash_entry *gen_entry;
+ PTR in_arg;
{
- if ((int) code < (int) R_PARISC_UNIMPLEMENTED)
+ struct elf32_hppa_stub_hash_entry *stub_entry;
+ struct elf32_hppa_link_hash_table *hplink;
+ int size;
+
+ /* Massage our args to the form they really have. */
+ stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry;
+ hplink = (struct elf32_hppa_link_hash_table *) in_arg;
+
+ if (stub_entry->stub_type == hppa_stub_long_branch)
{
- BFD_ASSERT ((int) elf_hppa_howto_table[(int) code].type == (int) code);
- return &elf_hppa_howto_table[(int) code];
+#if ! LONG_BRANCH_PIC_IN_SHLIB
+ if (stub_entry->reloc_sec != NULL)
+ stub_entry->reloc_sec->_raw_size += sizeof (Elf32_External_Rela);
+#endif
+ size = 8;
+ }
+ else if (stub_entry->stub_type == hppa_stub_long_branch_shared)
+ size = 12;
+ else if (stub_entry->stub_type == hppa_stub_export)
+ size = 24;
+ else /* hppa_stub_import or hppa_stub_import_shared. */
+ {
+ if (hplink->multi_subspace)
+ size = 28;
+ else
+ size = 16;
}
- return NULL;
-}
-
-/* Return true if SYM represents a local label symbol. */
-static boolean
-hppa_elf_is_local_label_name (abfd, name)
- bfd *abfd;
- const char *name;
-{
- return (name[0] == 'L' && name[1] == '$');
+ stub_entry->stub_sec->_raw_size += size;
+ return true;
}
-/* Do any backend specific processing when beginning to write an object
- file. For PA ELF we need to determine the size of the symbol extension
- section *before* any other output processing happens. */
+/* Return nonzero if ABFD represents an HPPA ELF32 file.
+ Additionally we set the default architecture and machine. */
-static void
-elf32_hppa_backend_begin_write_processing (abfd, info)
+static boolean
+elf32_hppa_object_p (abfd)
bfd *abfd;
- struct bfd_link_info *info;
{
- unsigned int i;
- asection *symextn_sec;
-
- /* Size up the symbol extension section. */
- if ((abfd->outsymbols == NULL
- && info == NULL)
- || symext_chain_size != 0)
- return;
+ Elf_Internal_Ehdr * i_ehdrp;
+ unsigned int flags;
- if (info == NULL)
+ i_ehdrp = elf_elfheader (abfd);
+ if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
{
- /* We were not called from the BFD ELF linker code, so we need
- to examine the output BFD's outsymbols.
-
- Note we can not build the symbol extensions now as the symbol
- map hasn't been set up. */
- for (i = 0; i < abfd->symcount; i++)
- {
- elf_symbol_type *symbol = (elf_symbol_type *)abfd->outsymbols[i];
-
- /* Only functions ever need an entry in the symbol extension
- section. */
- if (!(symbol->symbol.flags & BSF_FUNCTION))
- continue;
-
- /* And only if they specify the locations of their arguments. */
- if (symbol->tc_data.hppa_arg_reloc == 0)
- continue;
-
- /* Yup. This function symbol needs an entry. */
- symext_chain_size += 2 * ELF32_PARISC_SX_SIZE;
- }
+ if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX)
+ return false;
}
- else if (info->relocateable == true)
+ else
{
- struct elf32_hppa_args_hash_table *table;
- table = elf32_hppa_hash_table (info)->args_hash_table;
-
- /* Determine the size of the symbol extension section. */
- elf32_hppa_args_hash_traverse (table,
- elf32_hppa_size_symext,
- &symext_chain_size);
+ if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
+ return false;
}
- /* Now create the section and set its size. We'll fill in the
- contents later. */
- symextn_sec = bfd_get_section_by_name (abfd, SYMEXTN_SECTION_NAME);
- if (symextn_sec == NULL)
- symextn_sec = bfd_make_section (abfd, SYMEXTN_SECTION_NAME);
-
- bfd_set_section_flags (abfd, symextn_sec,
- SEC_LOAD | SEC_HAS_CONTENTS | SEC_DATA);
- symextn_sec->output_section = symextn_sec;
- symextn_sec->output_offset = 0;
- bfd_set_section_alignment (abfd, symextn_sec, 2);
- bfd_set_section_size (abfd, symextn_sec, symext_chain_size);
+ flags = i_ehdrp->e_flags;
+ switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
+ {
+ case EFA_PARISC_1_0:
+ return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
+ case EFA_PARISC_1_1:
+ return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
+ case EFA_PARISC_2_0:
+ return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
+ case EFA_PARISC_2_0 | EF_PARISC_WIDE:
+ return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
+ }
+ return true;
}
-/* Called for each entry in the args location hash table. For each
- entry we bump the size pointer by 2 records (16 bytes). */
+/* Undo the generic ELF code's subtraction of section->vma from the
+ value of each external symbol. */
static boolean
-elf32_hppa_size_symext (gen_entry, in_args)
- struct bfd_hash_entry *gen_entry;
- PTR in_args;
+elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
+ const Elf_Internal_Sym *sym ATTRIBUTE_UNUSED;
+ const char **namep ATTRIBUTE_UNUSED;
+ flagword *flagsp ATTRIBUTE_UNUSED;
+ asection **secp;
+ bfd_vma *valp;
{
- bfd_size_type *sizep = (bfd_size_type *)in_args;
-
- *sizep += 2 * ELF32_PARISC_SX_SIZE;
+ *valp += (*secp)->vma;
return true;
}
-/* Backend routine called by the linker for each output symbol.
-
- For PA ELF we use this opportunity to add an appropriate entry
- to the symbol extension chain for function symbols. */
+/* Create the .plt and .got sections, and set up our hash table
+ short-cuts to various dynamic sections. */
static boolean
-elf32_hppa_link_output_symbol_hook (abfd, info, name, sym, section)
+elf32_hppa_create_dynamic_sections (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
- const char *name;
- Elf_Internal_Sym *sym;
- asection *section;
{
- char *new_name;
- unsigned int len, index;
- struct elf32_hppa_args_hash_table *args_hash_table;
- struct elf32_hppa_args_hash_entry *args_hash;
-
- /* If the args hash table is NULL, then we've encountered an error
- of some sorts (for example, an undefined symbol). In that case
- we've got nothing else to do.
+ struct elf32_hppa_link_hash_table *hplink;
- NOTE: elf_link_output_symbol will abort if we return false here! */
- if (elf32_hppa_hash_table (info)->args_hash_table == NULL)
+ /* Don't try to create the .plt and .got twice. */
+ hplink = hppa_link_hash_table (info);
+ if (hplink->splt != NULL)
return true;
- index = elf32_hppa_hash_table (info)->output_symbol_count++;
-
- /* We need to look up this symbol in the args hash table to see if
- it has argument relocation bits. */
- if (ELF_ST_TYPE (sym->st_info) != STT_FUNC)
- return true;
-
- /* We know it's a function symbol of some kind. */
- len = strlen (name) + 1;
- if (ELF_ST_BIND (sym->st_info) == STB_LOCAL)
- len += 9;
+ /* Call the generic code to do most of the work. */
+ if (! _bfd_elf_create_dynamic_sections (abfd, info))
+ return false;
- new_name = bfd_malloc (len);
- if (new_name == NULL)
+ hplink->splt = bfd_get_section_by_name (abfd, ".plt");
+ hplink->srelplt = bfd_get_section_by_name (abfd, ".rela.plt");
+
+ hplink->sgot = bfd_get_section_by_name (abfd, ".got");
+ hplink->srelgot = bfd_make_section (abfd, ".rela.got");
+ if (hplink->srelgot == NULL
+ || ! bfd_set_section_flags (abfd, hplink->srelgot,
+ (SEC_ALLOC
+ | SEC_LOAD
+ | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED
+ | SEC_READONLY))
+ || ! bfd_set_section_alignment (abfd, hplink->srelgot, 2))
return false;
- strcpy (new_name, name);
- if (ELF_ST_BIND (sym->st_info) == STB_LOCAL)
- sprintf (new_name + len - 10, "_%08x", (int)section);
-
- /* Now that we have the unique name, we can look it up in the
- args hash table. */
- args_hash_table = elf32_hppa_hash_table (info)->args_hash_table;
- args_hash = elf32_hppa_args_hash_lookup (args_hash_table, new_name,
- false, false);
- free (new_name);
- if (args_hash == NULL)
- return true;
+ hplink->sdynbss = bfd_get_section_by_name (abfd, ".dynbss");
+ hplink->srelbss = bfd_get_section_by_name (abfd, ".rela.bss");
- /* We know this symbol has arg reloc bits. */
- add_entry_to_symext_chain (abfd, args_hash->arg_bits,
- index, &symext_rootP, &symext_lastP);
return true;
}
-/* Perform any processing needed late in the object file writing process.
- For PA ELF we build and set the contents of the symbol extension
- section. */
+/* Look through the relocs for a section during the first phase, and
+ allocate space in the global offset table or procedure linkage
+ table. At this point we haven't necessarily read all the input
+ files. */
-static void
-elf32_hppa_backend_final_write_processing (abfd, linker)
+static boolean
+elf32_hppa_check_relocs (abfd, info, sec, relocs)
bfd *abfd;
- boolean linker;
+ struct bfd_link_info *info;
+ asection *sec;
+ const Elf_Internal_Rela *relocs;
{
- asection *symextn_sec;
- unsigned int i;
+ bfd *dynobj;
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ bfd_signed_vma *local_got_refcounts;
+ const Elf_Internal_Rela *rel;
+ const Elf_Internal_Rela *rel_end;
+ struct elf32_hppa_link_hash_table *hplink;
+ asection *sreloc;
+ asection *stubreloc;
+
+ if (info->relocateable)
+ return true;
- /* Now build the symbol extension section. */
- if (symext_chain_size == 0)
- return;
+ hplink = hppa_link_hash_table (info);
+ dynobj = hplink->root.dynobj;
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (abfd);
+ local_got_refcounts = elf_local_got_refcounts (abfd);
+ sreloc = NULL;
+ stubreloc = NULL;
- if (! linker)
+ rel_end = relocs + sec->reloc_count;
+ for (rel = relocs; rel < rel_end; rel++)
{
- /* We were not called from the backend linker, so we still need
- to build the symbol extension chain.
-
- Look at each symbol, adding the appropriate information to the
- symbol extension section list as necessary. */
- for (i = 0; i < abfd->symcount; i++)
- {
- elf_symbol_type *symbol = (elf_symbol_type *) abfd->outsymbols[i];
+ enum {
+ NEED_GOT = 1,
+ NEED_PLT = 2,
+ NEED_DYNREL = 4,
+#if LONG_BRANCH_PIC_IN_SHLIB
+ NEED_STUBREL = 0, /* We won't be needing them in this case. */
+#else
+ NEED_STUBREL = 8,
+#endif
+ PLT_PLABEL = 16
+ };
+
+ unsigned int r_symndx, r_type;
+ struct elf32_hppa_link_hash_entry *h;
+ int need_entry;
- /* Only functions ever need an entry in the symbol extension
- section. */
- if (!(symbol->symbol.flags & BSF_FUNCTION))
- continue;
+ r_symndx = ELF32_R_SYM (rel->r_info);
- /* And only if they specify the locations of their arguments. */
- if (symbol->tc_data.hppa_arg_reloc == 0)
- continue;
+ if (r_symndx < symtab_hdr->sh_info)
+ h = NULL;
+ else
+ h = ((struct elf32_hppa_link_hash_entry *)
+ sym_hashes[r_symndx - symtab_hdr->sh_info]);
- /* Add this symbol's information to the chain. */
- add_entry_to_symext_chain (abfd, symbol->tc_data.hppa_arg_reloc,
- symbol->symbol.udata.i, &symext_rootP,
- &symext_lastP);
- }
- }
+ r_type = ELF32_R_TYPE (rel->r_info);
- /* Now fill in the contents of the symbol extension section. */
- elf_hppa_tc_make_sections (abfd, symext_rootP);
+ switch (r_type)
+ {
+ case R_PARISC_DLTIND14F:
+ case R_PARISC_DLTIND14R:
+ case R_PARISC_DLTIND21L:
+ /* This symbol requires a global offset table entry. */
+ need_entry = NEED_GOT;
+
+ /* Mark this section as containing PIC code. */
+ sec->flags |= SEC_HAS_GOT_REF;
+ break;
+
+ case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
+ case R_PARISC_PLABEL21L:
+ case R_PARISC_PLABEL32:
+ /* If the addend is non-zero, we break badly. */
+ if (rel->r_addend != 0)
+ abort ();
+
+ /* If we are creating a shared library, then we need to
+ create a PLT entry for all PLABELs, because PLABELs with
+ local symbols may be passed via a pointer to another
+ object. Additionally, output a dynamic relocation
+ pointing to the PLT entry.
+ For executables, the original 32-bit ABI allowed two
+ different styles of PLABELs (function pointers): For
+ global functions, the PLABEL word points into the .plt
+ two bytes past a (function address, gp) pair, and for
+ local functions the PLABEL points directly at the
+ function. The magic +2 for the first type allows us to
+ differentiate between the two. As you can imagine, this
+ is a real pain when it comes to generating code to call
+ functions indirectly or to compare function pointers.
+ We avoid the mess by always pointing a PLABEL into the
+ .plt, even for local functions. */
+ need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
+ break;
+
+ case R_PARISC_PCREL12F:
+ hplink->has_12bit_branch = 1;
+ /* Fall thru. */
+ case R_PARISC_PCREL17C:
+ case R_PARISC_PCREL17F:
+ hplink->has_17bit_branch = 1;
+ /* Fall thru. */
+ case R_PARISC_PCREL22F:
+ /* Function calls might need to go through the .plt, and
+ might require long branch stubs. */
+ if (h == NULL)
+ {
+ /* We know local syms won't need a .plt entry, and if
+ they need a long branch stub we can't guarantee that
+ we can reach the stub. So just flag an error later
+ if we're doing a shared link and find we need a long
+ branch stub. */
+ continue;
+ }
+ else
+ {
+ /* Global symbols will need a .plt entry if they remain
+ global, and in most cases won't need a long branch
+ stub. Unfortunately, we have to cater for the case
+ where a symbol is forced local by versioning, or due
+ to symbolic linking, and we lose the .plt entry. */
+ need_entry = NEED_PLT | NEED_STUBREL;
+ if (h->elf.type == STT_PARISC_MILLI)
+ need_entry = NEED_STUBREL;
+ }
+ break;
+
+ case R_PARISC_SEGBASE: /* Used to set segment base. */
+ case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
+ case R_PARISC_PCREL14F: /* PC relative load/store. */
+ case R_PARISC_PCREL14R:
+ case R_PARISC_PCREL17R: /* External branches. */
+ case R_PARISC_PCREL21L: /* As above, and for load/store too. */
+ /* We don't need to propagate the relocation if linking a
+ shared object since these are section relative. */
+ continue;
+
+ case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
+ case R_PARISC_DPREL14R:
+ case R_PARISC_DPREL21L:
+ if (info->shared)
+ {
+ (*_bfd_error_handler)
+ (_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"),
+ bfd_get_filename (abfd),
+ elf_hppa_howto_table[r_type].name);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ /* Fall through. */
+
+ case R_PARISC_DIR17F: /* Used for external branches. */
+ case R_PARISC_DIR17R:
+ case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
+ case R_PARISC_DIR14R:
+ case R_PARISC_DIR21L: /* As above, and for ext branches too. */
+#if 1
+ /* Help debug shared library creation. Any of the above
+ relocs can be used in shared libs, but they may cause
+ pages to become unshared. */
+ if (info->shared)
+ {
+ (*_bfd_error_handler)
+ (_("%s: relocation %s should not be used when making a shared object; recompile with -fPIC"),
+ bfd_get_filename (abfd),
+ elf_hppa_howto_table[r_type].name);
+ }
+ /* Fall through. */
+#endif
+
+ case R_PARISC_DIR32: /* .word relocs. */
+ /* We may want to output a dynamic relocation later. */
+ need_entry = NEED_DYNREL;
+ break;
+
+ /* This relocation describes the C++ object vtable hierarchy.
+ Reconstruct it for later use during GC. */
+ case R_PARISC_GNU_VTINHERIT:
+ if (!_bfd_elf32_gc_record_vtinherit (abfd, sec,
+ &h->elf, rel->r_offset))
+ return false;
+ continue;
+
+ /* This relocation describes which C++ vtable entries are actually
+ used. Record for later use during GC. */
+ case R_PARISC_GNU_VTENTRY:
+ if (!_bfd_elf32_gc_record_vtentry (abfd, sec,
+ &h->elf, rel->r_addend))
+ return false;
+ continue;
+
+ default:
+ continue;
+ }
+
+ /* Now carry out our orders. */
+ if (need_entry & NEED_GOT)
+ {
+ /* Allocate space for a GOT entry, as well as a dynamic
+ relocation for this entry. */
+ if (dynobj == NULL)
+ hplink->root.dynobj = dynobj = abfd;
+
+ if (hplink->sgot == NULL)
+ {
+ if (! elf32_hppa_create_dynamic_sections (dynobj, info))
+ return false;
+ }
+
+ if (h != NULL)
+ {
+ if (h->elf.got.refcount == -1)
+ h->elf.got.refcount = 1;
+ else
+ h->elf.got.refcount += 1;
+ }
+ else
+ {
+ /* This is a global offset table entry for a local symbol. */
+ if (local_got_refcounts == NULL)
+ {
+ bfd_size_type size;
+
+ /* Allocate space for local got offsets and local
+ plt offsets. Done this way to save polluting
+ elf_obj_tdata with another target specific
+ pointer. */
+ size = symtab_hdr->sh_info;
+ size *= 2 * sizeof (bfd_signed_vma);
+ local_got_refcounts = ((bfd_signed_vma *)
+ bfd_alloc (abfd, size));
+ if (local_got_refcounts == NULL)
+ return false;
+ elf_local_got_refcounts (abfd) = local_got_refcounts;
+ memset (local_got_refcounts, -1, (size_t) size);
+ }
+ if (local_got_refcounts[r_symndx] == -1)
+ local_got_refcounts[r_symndx] = 1;
+ else
+ local_got_refcounts[r_symndx] += 1;
+ }
+ }
+
+ if (need_entry & NEED_PLT)
+ {
+ /* If we are creating a shared library, and this is a reloc
+ against a weak symbol or a global symbol in a dynamic
+ object, then we will be creating an import stub and a
+ .plt entry for the symbol. Similarly, on a normal link
+ to symbols defined in a dynamic object we'll need the
+ import stub and a .plt entry. We don't know yet whether
+ the symbol is defined or not, so make an entry anyway and
+ clean up later in adjust_dynamic_symbol. */
+ if ((sec->flags & SEC_ALLOC) != 0)
+ {
+ if (h != NULL)
+ {
+ if (h->elf.plt.refcount == -1)
+ {
+ h->elf.plt.refcount = 1;
+ h->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
+ }
+ else
+ h->elf.plt.refcount += 1;
+
+ /* If this .plt entry is for a plabel, mark it so
+ that adjust_dynamic_symbol will keep the entry
+ even if it appears to be local. */
+ if (need_entry & PLT_PLABEL)
+ h->plabel = 1;
+ }
+ else if (need_entry & PLT_PLABEL)
+ {
+ bfd_signed_vma *local_plt_refcounts;
+
+ if (local_got_refcounts == NULL)
+ {
+ bfd_size_type size;
+
+ /* Allocate space for local got offsets and local
+ plt offsets. */
+ size = symtab_hdr->sh_info;
+ size *= 2 * sizeof (bfd_signed_vma);
+ local_got_refcounts = ((bfd_signed_vma *)
+ bfd_alloc (abfd, size));
+ if (local_got_refcounts == NULL)
+ return false;
+ elf_local_got_refcounts (abfd) = local_got_refcounts;
+ memset (local_got_refcounts, -1, (size_t) size);
+ }
+ local_plt_refcounts = (local_got_refcounts
+ + symtab_hdr->sh_info);
+ if (local_plt_refcounts[r_symndx] == -1)
+ local_plt_refcounts[r_symndx] = 1;
+ else
+ local_plt_refcounts[r_symndx] += 1;
+ }
+ }
+ }
+
+ if (need_entry & (NEED_DYNREL | NEED_STUBREL))
+ {
+ /* Flag this symbol as having a non-got, non-plt reference
+ so that we generate copy relocs if it turns out to be
+ dynamic. */
+ if (need_entry == NEED_DYNREL
+ && h != NULL
+ && !info->shared
+ && (sec->flags & SEC_READONLY) != 0)
+ h->elf.elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
+
+ /* If we are creating a shared library then we need to copy
+ the reloc into the shared library. However, if we are
+ linking with -Bsymbolic, we need only copy absolute
+ relocs or relocs against symbols that are not defined in
+ an object we are including in the link. PC- or DP- or
+ DLT-relative relocs against any local sym or global sym
+ with DEF_REGULAR set, can be discarded. At this point we
+ have not seen all the input files, so it is possible that
+ DEF_REGULAR is not set now but will be set later (it is
+ never cleared). We account for that possibility below by
+ storing information in the reloc_entries field of the
+ hash table entry.
+
+ A similar situation to the -Bsymbolic case occurs when
+ creating shared libraries and symbol visibility changes
+ render the symbol local.
+
+ As it turns out, all the relocs we will be creating here
+ are absolute, so we cannot remove them on -Bsymbolic
+ links or visibility changes anyway. A STUB_REL reloc
+ is absolute too, as in that case it is the reloc in the
+ stub we will be creating, rather than copying the PCREL
+ reloc in the branch.
+
+ If on the other hand, we are creating an executable, we
+ may need to keep relocations for symbols satisfied by a
+ dynamic library if we manage to avoid copy relocs for the
+ symbol. */
+ if ((info->shared
+ && (sec->flags & SEC_ALLOC) != 0
+ && (IS_ABSOLUTE_RELOC (r_type)
+ || (h != NULL
+ && (!info->symbolic
+ || h->elf.root.type == bfd_link_hash_defweak
+ || (h->elf.elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))))
+ || (!info->shared
+ && (sec->flags & SEC_ALLOC) != 0
+ && h != NULL
+ && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
+ && (h->elf.root.type == bfd_link_hash_defweak
+ || (h->elf.elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0)))
+ {
+ boolean doit;
+ asection *srel;
+
+ srel = sreloc;
+ if ((need_entry & NEED_STUBREL))
+ srel = stubreloc;
+
+ /* Create a reloc section in dynobj and make room for
+ this reloc. */
+ if (srel == NULL)
+ {
+ char *name;
+
+ if (dynobj == NULL)
+ hplink->root.dynobj = dynobj = abfd;
+
+ name = bfd_elf_string_from_elf_section
+ (abfd,
+ elf_elfheader (abfd)->e_shstrndx,
+ elf_section_data (sec)->rel_hdr.sh_name);
+ if (name == NULL)
+ {
+ (*_bfd_error_handler)
+ (_("Could not find relocation section for %s"),
+ sec->name);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ if ((need_entry & NEED_STUBREL))
+ {
+ bfd_size_type len = strlen (name) + sizeof (STUB_SUFFIX);
+ char *newname = bfd_malloc (len);
+
+ if (newname == NULL)
+ return false;
+ strcpy (newname, name);
+ strcpy (newname + len - sizeof (STUB_SUFFIX),
+ STUB_SUFFIX);
+ name = newname;
+ }
- /* And attach that as the section's contents. */
- symextn_sec = bfd_get_section_by_name (abfd, SYMEXTN_SECTION_NAME);
- if (symextn_sec == (asection *) 0)
- abort();
+ srel = bfd_get_section_by_name (dynobj, name);
+ if (srel == NULL)
+ {
+ flagword flags;
+
+ srel = bfd_make_section (dynobj, name);
+ flags = (SEC_HAS_CONTENTS | SEC_READONLY
+ | SEC_IN_MEMORY | SEC_LINKER_CREATED);
+ if ((sec->flags & SEC_ALLOC) != 0)
+ flags |= SEC_ALLOC | SEC_LOAD;
+ if (srel == NULL
+ || !bfd_set_section_flags (dynobj, srel, flags)
+ || !bfd_set_section_alignment (dynobj, srel, 2))
+ return false;
+ }
+ else if ((need_entry & NEED_STUBREL))
+ free (name);
+
+ if ((need_entry & NEED_STUBREL))
+ stubreloc = srel;
+ else
+ sreloc = srel;
+ }
+
+#if ! LONG_BRANCH_PIC_IN_SHLIB
+ /* If this is a function call, we only need one dynamic
+ reloc for the stub as all calls to a particular
+ function will go through the same stub. Actually, a
+ long branch stub needs two relocations, but we count
+ on some intelligence on the part of the dynamic
+ linker. */
+ if ((need_entry & NEED_STUBREL))
+ {
+ doit = h->stub_reloc_sec != stubreloc;
+ h->stub_reloc_sec = stubreloc;
+ }
+ else
+#endif
+ doit = 1;
+
+ if (doit)
+ {
+ srel->_raw_size += sizeof (Elf32_External_Rela);
+
+ /* Keep track of relocations we have entered for
+ this global symbol, so that we can discard them
+ later if necessary. */
+ if (!info->shared
+ || (h != NULL
+ && (! IS_ABSOLUTE_RELOC (rtype)
+ || (need_entry & NEED_STUBREL))))
+ {
+ struct elf32_hppa_dyn_reloc_entry *p;
+
+ for (p = h->reloc_entries; p != NULL; p = p->next)
+ if (p->section == srel)
+ break;
+
+ if (p == NULL)
+ {
+ p = ((struct elf32_hppa_dyn_reloc_entry *)
+ bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
+ if (p == NULL)
+ return false;
+ p->next = h->reloc_entries;
+ h->reloc_entries = p;
+ p->section = srel;
+ p->count = 0;
+ }
- symextn_sec->contents = (void *)symextn_contents;
+ /* NEED_STUBREL and NEED_DYNREL are never both
+ set. Leave the count at zero for the
+ NEED_STUBREL case as we only ever have one
+ stub reloc per section per symbol, and this
+ simplifies code to discard unneeded relocs. */
+ if (! (need_entry & NEED_STUBREL))
+ ++p->count;
+ }
+ }
+ }
+ }
+ }
- bfd_set_section_contents (abfd, symextn_sec, symextn_sec->contents,
- symextn_sec->output_offset, symextn_sec->_raw_size);
+ return true;
}
-/* Update the symbol extention chain to include the symbol pointed to
- by SYMBOLP if SYMBOLP is a function symbol. Used internally and by GAS. */
+/* Return the section that should be marked against garbage collection
+ for a given relocation. */
-static void
-add_entry_to_symext_chain (abfd, arg_reloc, sym_idx, symext_root, symext_last)
+static asection *
+elf32_hppa_gc_mark_hook (abfd, info, rel, h, sym)
bfd *abfd;
- unsigned int arg_reloc;
- unsigned int sym_idx;
- symext_chainS **symext_root;
- symext_chainS **symext_last;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
+ Elf_Internal_Rela *rel;
+ struct elf_link_hash_entry *h;
+ Elf_Internal_Sym *sym;
{
- symext_chainS *symextP;
-
- /* Allocate memory and initialize this entry. */
- symextP = (symext_chainS *) bfd_alloc (abfd, sizeof (symext_chainS) * 2);
- if (!symextP)
- abort(); /* FIXME */
+ if (h != NULL)
+ {
+ switch ((unsigned int) ELF32_R_TYPE (rel->r_info))
+ {
+ case R_PARISC_GNU_VTINHERIT:
+ case R_PARISC_GNU_VTENTRY:
+ break;
- symextP[0].entry = ELF32_PARISC_SX_WORD (PARISC_SXT_SYMNDX, sym_idx);
- symextP[0].next = &symextP[1];
+ default:
+ switch (h->root.type)
+ {
+ case bfd_link_hash_defined:
+ case bfd_link_hash_defweak:
+ return h->root.u.def.section;
- symextP[1].entry = ELF32_PARISC_SX_WORD (PARISC_SXT_ARG_RELOC, arg_reloc);
- symextP[1].next = NULL;
+ case bfd_link_hash_common:
+ return h->root.u.c.p->section;
- /* Now update the chain itself so it can be walked later to build
- the symbol extension section. */
- if (*symext_root == NULL)
- {
- *symext_root = &symextP[0];
- *symext_last = &symextP[1];
+ default:
+ break;
+ }
+ }
}
else
{
- (*symext_last)->next = &symextP[0];
- *symext_last = &symextP[1];
+ if (!(elf_bad_symtab (abfd)
+ && ELF_ST_BIND (sym->st_info) != STB_LOCAL)
+ && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
+ && sym->st_shndx != SHN_COMMON))
+ {
+ return bfd_section_from_elf_index (abfd, sym->st_shndx);
+ }
}
+
+ return NULL;
}
-/* Build the symbol extension section. */
+/* Update the got and plt entry reference counts for the section being
+ removed. */
-static void
-elf_hppa_tc_make_sections (abfd, symext_root)
+static boolean
+elf32_hppa_gc_sweep_hook (abfd, info, sec, relocs)
bfd *abfd;
- symext_chainS *symext_root;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
+ asection *sec;
+ const Elf_Internal_Rela *relocs;
{
- symext_chainS *symextP;
- unsigned int i;
- asection *symextn_sec;
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ bfd_signed_vma *local_got_refcounts;
+ bfd_signed_vma *local_plt_refcounts;
+ const Elf_Internal_Rela *rel, *relend;
+ unsigned long r_symndx;
+ struct elf_link_hash_entry *h;
+ struct elf32_hppa_link_hash_table *hplink;
+ bfd *dynobj;
+
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (abfd);
+ local_got_refcounts = elf_local_got_refcounts (abfd);
+ local_plt_refcounts = local_got_refcounts;
+ if (local_plt_refcounts != NULL)
+ local_plt_refcounts += symtab_hdr->sh_info;
+ hplink = hppa_link_hash_table (info);
+ dynobj = hplink->root.dynobj;
+ if (dynobj == NULL)
+ return true;
+
+ relend = relocs + sec->reloc_count;
+ for (rel = relocs; rel < relend; rel++)
+ switch ((unsigned int) ELF32_R_TYPE (rel->r_info))
+ {
+ case R_PARISC_DLTIND14F:
+ case R_PARISC_DLTIND14R:
+ case R_PARISC_DLTIND21L:
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ if (r_symndx >= symtab_hdr->sh_info)
+ {
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ if (h->got.refcount > 0)
+ h->got.refcount -= 1;
+ }
+ else if (local_got_refcounts != NULL)
+ {
+ if (local_got_refcounts[r_symndx] > 0)
+ local_got_refcounts[r_symndx] -= 1;
+ }
+ break;
+
+ case R_PARISC_PCREL12F:
+ case R_PARISC_PCREL17C:
+ case R_PARISC_PCREL17F:
+ case R_PARISC_PCREL22F:
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ if (r_symndx >= symtab_hdr->sh_info)
+ {
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ if (h->plt.refcount > 0)
+ h->plt.refcount -= 1;
+ }
+ break;
+
+ case R_PARISC_PLABEL14R:
+ case R_PARISC_PLABEL21L:
+ case R_PARISC_PLABEL32:
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ if (r_symndx >= symtab_hdr->sh_info)
+ {
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ if (h->plt.refcount > 0)
+ h->plt.refcount -= 1;
+ }
+ else if (local_plt_refcounts != NULL)
+ {
+ if (local_plt_refcounts[r_symndx] > 0)
+ local_plt_refcounts[r_symndx] -= 1;
+ }
+ break;
- symextn_sec = bfd_get_section_by_name (abfd, SYMEXTN_SECTION_NAME);
+ default:
+ break;
+ }
- /* Grab some memory for the contents of the symbol extension section
- itself. */
- symextn_contents = (bfd_byte *) bfd_zalloc (abfd,
- symextn_sec->_raw_size);
- if (!symextn_contents)
- abort(); /* FIXME */
+ return true;
+}
- /* Fill in the contents of the symbol extension chain. */
- for (i = 0, symextP = symext_root; symextP; symextP = symextP->next, ++i)
- ELF32_PARISC_SX_PUT (abfd, (bfd_vma) symextP->entry,
- symextn_contents + i * ELF32_PARISC_SX_SIZE);
+/* Our own version of hide_symbol, so that we can keep plt entries for
+ plabels. */
- return;
+static void
+elf32_hppa_hide_symbol (info, h)
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
+ struct elf_link_hash_entry *h;
+{
+ if ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)
+ h->dynindx = -1;
+ if (! ((struct elf32_hppa_link_hash_entry *) h)->plabel)
+ {
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
+ h->plt.offset = (bfd_vma) -1;
+ }
}
-/* Do some PA ELF specific work after reading in the symbol table.
- In particular attach the argument relocation from the
- symbol extension section to the appropriate symbols. */
+/* This is the condition under which elf32_hppa_finish_dynamic_symbol
+ will be called from elflink.h. If elflink.h doesn't call our
+ finish_dynamic_symbol routine, we'll need to do something about
+ initializing any .plt and .got entries in elf32_hppa_relocate_section. */
+#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \
+ ((DYN) \
+ && ((INFO)->shared \
+ || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
+ && ((H)->dynindx != -1 \
+ || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
+
+/* Adjust a symbol defined by a dynamic object and referenced by a
+ regular object. The current definition is in some section of the
+ dynamic object, but we're not including those sections. We have to
+ change the definition to something the rest of the link can
+ understand. */
static boolean
-elf32_hppa_backend_symbol_table_processing (abfd, esyms,symcnt)
- bfd *abfd;
- elf_symbol_type *esyms;
- unsigned int symcnt;
+elf32_hppa_adjust_dynamic_symbol (info, h)
+ struct bfd_link_info *info;
+ struct elf_link_hash_entry *h;
{
- Elf32_Internal_Shdr *symextn_hdr =
- bfd_elf_find_section (abfd, SYMEXTN_SECTION_NAME);
- unsigned int i, current_sym_idx = 0;
+ bfd *dynobj;
+ struct elf32_hppa_link_hash_table *hplink;
+ asection *s;
+
+ hplink = hppa_link_hash_table (info);
+ dynobj = hplink->root.dynobj;
+
+ /* If this is a function, put it in the procedure linkage table. We
+ will fill in the contents of the procedure linkage table later,
+ when we know the address of the .got section. */
+ if (h->type == STT_FUNC
+ || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
+ {
+ if (!info->shared
+ && h->plt.refcount > 0
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
+ && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0)
+ {
+ ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1;
+ }
+
+ if (h->plt.refcount <= 0
+ || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
+ && h->root.type != bfd_link_hash_defweak
+ && ! ((struct elf32_hppa_link_hash_entry *) h)->plabel
+ && (!info->shared || info->symbolic)))
+ {
+ /* The .plt entry is not needed when:
+ a) Garbage collection has removed all references to the
+ symbol, or
+ b) We know for certain the symbol is defined in this
+ object, and it's not a weak definition, nor is the symbol
+ used by a plabel relocation. Either this object is the
+ application or we are doing a shared symbolic link. */
+
+ /* As a special sop to the hppa ABI, we keep a .plt entry
+ for functions in sections containing PIC code. */
+ if (((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call)
+ ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1;
+ else
+ {
+ h->plt.offset = (bfd_vma) -1;
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
+ }
+ }
+
+ return true;
+ }
- /* If no symbol extension existed, then all symbol extension information
- is assumed to be zero. */
- if (symextn_hdr == NULL)
+ /* If this is a weak symbol, and there is a real definition, the
+ processor independent code will have arranged for us to see the
+ real definition first, and we can just use the same value. */
+ if (h->weakdef != NULL)
{
- for (i = 0; i < symcnt; i++)
- esyms[i].tc_data.hppa_arg_reloc = 0;
- return (true);
+ if (h->weakdef->root.type != bfd_link_hash_defined
+ && h->weakdef->root.type != bfd_link_hash_defweak)
+ abort ();
+ h->root.u.def.section = h->weakdef->root.u.def.section;
+ h->root.u.def.value = h->weakdef->root.u.def.value;
+ return true;
}
- /* FIXME: Why not use bfd_get_section_contents here? Also should give
- memory back when we're done. */
- /* Allocate a buffer of the appropriate size for the symextn section. */
- symextn_hdr->contents = bfd_zalloc(abfd,symextn_hdr->sh_size);
- if (!symextn_hdr->contents)
- return false;
+ /* This is a reference to a symbol defined by a dynamic object which
+ is not a function. */
- /* Read in the symextn section. */
- if (bfd_seek (abfd, symextn_hdr->sh_offset, SEEK_SET) == -1)
- return false;
- if (bfd_read ((PTR) symextn_hdr->contents, 1, symextn_hdr->sh_size, abfd)
- != symextn_hdr->sh_size)
- return false;
+ /* If we are creating a shared library, we must presume that the
+ only references to the symbol are via the global offset table.
+ For such cases we need not do anything here; the relocations will
+ be handled correctly by relocate_section. */
+ if (info->shared)
+ return true;
+
+ /* If there are no references to this symbol that do not use the
+ GOT, we don't need to generate a copy reloc. */
+ if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
+ return true;
- /* Parse entries in the symbol extension section, updating the symtab
- entries as we go */
- for (i = 0; i < symextn_hdr->sh_size / ELF32_PARISC_SX_SIZE; i++)
+ /* We must allocate the symbol in our .dynbss section, which will
+ become part of the .bss section of the executable. There will be
+ an entry for this symbol in the .dynsym section. The dynamic
+ object will contain position independent code, so all references
+ from the dynamic object to this symbol will go through the global
+ offset table. The dynamic linker will use the .dynsym entry to
+ determine the address it must put in the global offset table, so
+ both the dynamic object and the regular object will refer to the
+ same memory location for the variable. */
+
+ s = hplink->sdynbss;
+
+ /* We must generate a COPY reloc to tell the dynamic linker to
+ copy the initial value out of the dynamic object and into the
+ runtime process image. We need to remember the offset into the
+ .rela.bss section we are going to use. */
+ if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
{
- symext_entryS se =
- ELF32_PARISC_SX_GET (abfd,
- ((unsigned char *)symextn_hdr->contents
- + i * ELF32_PARISC_SX_SIZE));
- unsigned int se_value = ELF32_PARISC_SX_VAL (se);
- unsigned int se_type = ELF32_PARISC_SX_TYPE (se);
+ asection *srel;
- switch (se_type)
- {
- case PARISC_SXT_NULL:
- break;
+ srel = hplink->srelbss;
+ srel->_raw_size += sizeof (Elf32_External_Rela);
+ h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
+ }
- case PARISC_SXT_SYMNDX:
- if (se_value >= symcnt)
- {
- bfd_set_error (bfd_error_bad_value);
- return (false);
- }
- current_sym_idx = se_value - 1;
- break;
+ {
+ /* We need to figure out the alignment required for this symbol. I
+ have no idea how other ELF linkers handle this. */
+ unsigned int power_of_two;
+
+ power_of_two = bfd_log2 (h->size);
+ if (power_of_two > 3)
+ power_of_two = 3;
+
+ /* Apply the required alignment. */
+ s->_raw_size = BFD_ALIGN (s->_raw_size,
+ (bfd_size_type) (1 << power_of_two));
+ if (power_of_two > bfd_get_section_alignment (dynobj, s))
+ {
+ if (! bfd_set_section_alignment (dynobj, s, power_of_two))
+ return false;
+ }
+ }
+ /* Define the symbol as being at this point in the section. */
+ h->root.u.def.section = s;
+ h->root.u.def.value = s->_raw_size;
- case PARISC_SXT_ARG_RELOC:
- esyms[current_sym_idx].tc_data.hppa_arg_reloc = se_value;
- break;
+ /* Increment the section size to make room for the symbol. */
+ s->_raw_size += h->size;
- default:
- bfd_set_error (bfd_error_bad_value);
- return (false);
- }
+ return true;
+}
+
+/* Called via elf_link_hash_traverse to create .plt entries for an
+ application that uses statically linked PIC functions. Similar to
+ the first part of elf32_hppa_adjust_dynamic_symbol. */
+
+static boolean
+hppa_handle_PIC_calls (h, inf)
+ struct elf_link_hash_entry *h;
+ PTR inf ATTRIBUTE_UNUSED;
+{
+ if (! (h->plt.refcount > 0
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0))
+ {
+ h->plt.offset = (bfd_vma) -1;
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
+ return true;
}
- return (true);
+
+ h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
+ ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1;
+ ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1;
+
+ return true;
}
-/* Read and attach the symbol extension information for the symbols
- in INPUT_BFD to the argument location hash table. Handle locals
- if DO_LOCALS is true; likewise for globals when DO_GLOBALS is true. */
+/* Allocate space in .plt, .got and associated reloc sections for
+ global syms. */
static boolean
-elf32_hppa_read_symext_info (input_bfd, symtab_hdr, args_hash_table, local_syms)
- bfd *input_bfd;
- Elf_Internal_Shdr *symtab_hdr;
- struct elf32_hppa_args_hash_table *args_hash_table;
- Elf_Internal_Sym *local_syms;
+allocate_plt_and_got_and_discard_relocs (h, inf)
+ struct elf_link_hash_entry *h;
+ PTR inf;
{
- asection *symextn_sec;
- bfd_byte *contents;
- unsigned int i, n_entries, current_index = 0;
-
- /* Get the symbol extension section for this BFD. If no section exists
- then there's nothing to do. Likewise if the section exists, but
- has no contents. */
- symextn_sec = bfd_get_section_by_name (input_bfd, SYMEXTN_SECTION_NAME);
- if (symextn_sec == NULL)
+ struct bfd_link_info *info;
+ struct elf32_hppa_link_hash_table *hplink;
+ asection *s;
+ struct elf32_hppa_link_hash_entry *eh;
+
+ if (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
return true;
- /* Done separately so we can turn off SEC_HAS_CONTENTS (see below). */
- if (symextn_sec->_raw_size == 0)
+ info = (struct bfd_link_info *) inf;
+ hplink = hppa_link_hash_table (info);
+ if ((hplink->root.dynamic_sections_created
+ && h->plt.refcount > 0)
+ || ((struct elf32_hppa_link_hash_entry *) h)->pic_call)
{
- symextn_sec->flags &= ~SEC_HAS_CONTENTS;
- return true;
- }
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0
+ && h->type != STT_PARISC_MILLI
+ && !((struct elf32_hppa_link_hash_entry *) h)->pic_call)
+ {
+ if (! bfd_elf32_link_record_dynamic_symbol (info, h))
+ return false;
+ }
- contents = (bfd_byte *) bfd_malloc ((size_t) symextn_sec->_raw_size);
- if (contents == NULL)
- return false;
+ /* Make an entry in the .plt section. */
+ s = hplink->splt;
+ h->plt.offset = s->_raw_size;
+ if (PLABEL_PLT_ENTRY_SIZE != PLT_ENTRY_SIZE
+ && ((struct elf32_hppa_link_hash_entry *) h)->plabel
+ && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
+ {
+ /* Add some extra space for the dynamic linker to use. */
+ s->_raw_size += PLABEL_PLT_ENTRY_SIZE;
+ }
+ else
+ s->_raw_size += PLT_ENTRY_SIZE;
- /* How gross. We turn off SEC_HAS_CONTENTS for the input symbol extension
- sections to keep the generic ELF/BFD code from trying to do anything
- with them. We have to undo that hack temporarily so that we can read
- in the contents with the generic code. */
- symextn_sec->flags |= SEC_HAS_CONTENTS;
- if (bfd_get_section_contents (input_bfd, symextn_sec, contents,
- 0, symextn_sec->_raw_size) == false)
+ if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call
+ && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h))
+ {
+ /* We also need to make an entry in the .rela.plt section. */
+ hplink->srelplt->_raw_size += sizeof (Elf32_External_Rela);
+ hplink->need_plt_stub = 1;
+ }
+ }
+ else
{
- symextn_sec->flags &= ~SEC_HAS_CONTENTS;
- free (contents);
- return false;
+ h->plt.offset = (bfd_vma) -1;
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
}
- /* Gross. Turn off SEC_HAS_CONTENTS for the input symbol extension
- sections (see above). */
- symextn_sec->flags &= ~SEC_HAS_CONTENTS;
-
- n_entries = symextn_sec->_raw_size / ELF32_PARISC_SX_SIZE;
- for (i = 0; i < n_entries; i++)
+ if (h->got.refcount > 0)
{
- symext_entryS entry =
- ELF32_PARISC_SX_GET (input_bfd, contents + i * ELF32_PARISC_SX_SIZE);
- unsigned int value = ELF32_PARISC_SX_VAL (entry);
- unsigned int type = ELF32_PARISC_SX_TYPE (entry);
- struct elf32_hppa_args_hash_entry *args_hash;
+ boolean dyn;
- switch (type)
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0
+ && h->type != STT_PARISC_MILLI)
{
- case PARISC_SXT_NULL:
- break;
-
- case PARISC_SXT_SYMNDX:
- if (value >= symtab_hdr->sh_size / sizeof (Elf32_External_Sym))
- {
- bfd_set_error (bfd_error_bad_value);
- free (contents);
- return false;
- }
- current_index = value;
- break;
+ if (! bfd_elf32_link_record_dynamic_symbol (info, h))
+ return false;
+ }
- case PARISC_SXT_ARG_RELOC:
- if (current_index < symtab_hdr->sh_info)
- {
- Elf_Internal_Shdr *hdr;
- char *new_name;
- const char *sym_name;
- asection *sym_sec;
- unsigned int len;
-
- hdr = elf_elfsections (input_bfd)[local_syms[current_index].st_shndx];
- sym_sec = hdr->bfd_section;
- sym_name = bfd_elf_string_from_elf_section (input_bfd,
- symtab_hdr->sh_link,
- local_syms[current_index].st_name);
- len = strlen (sym_name) + 10;
- new_name = bfd_malloc (len);
- if (new_name == NULL)
- {
- free (contents);
- return false;
- }
- strcpy (new_name, sym_name);
- sprintf (new_name + len - 10, "_%08x", (int)sym_sec);
-
- /* This is a global symbol with argument location info.
- We need to enter it into the hash table. */
- args_hash = elf32_hppa_args_hash_lookup (args_hash_table,
- new_name, true,
- true);
- free (new_name);
- if (args_hash == NULL)
- {
- free (contents);
- return false;
- }
- args_hash->arg_bits = value;
- break;
- }
- else if (current_index >= symtab_hdr->sh_info)
- {
- struct elf_link_hash_entry *h;
-
- current_index -= symtab_hdr->sh_info;
- h = elf_sym_hashes(input_bfd)[current_index];
- /* This is a global symbol with argument location
- information. We need to enter it into the hash table. */
- args_hash = elf32_hppa_args_hash_lookup (args_hash_table,
- h->root.root.string,
- true, true);
- if (args_hash == NULL)
- {
- bfd_set_error (bfd_error_bad_value);
- free (contents);
- return false;
- }
- args_hash->arg_bits = value;
- break;
- }
- else
- break;
+ s = hplink->sgot;
+ h->got.offset = s->_raw_size;
+ s->_raw_size += GOT_ENTRY_SIZE;
+ dyn = hplink->root.dynamic_sections_created;
+ if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h))
+ hplink->srelgot->_raw_size += sizeof (Elf32_External_Rela);
+ }
+ else
+ h->got.offset = (bfd_vma) -1;
+
+ /* If this is a -Bsymbolic shared link, then we need to discard all
+ space allocated for dynamic relocs against symbols defined in a
+ regular object. For the normal shared case, discard space for
+ relocs that have become local due to symbol visibility changes.
+ For the non-shared case, discard space for symbols which turn out
+ to need copy relocs or are not dynamic. We also need to lose
+ relocs we've allocated for long branch stubs if we know we won't
+ be generating a stub. */
+
+ eh = (struct elf32_hppa_link_hash_entry *) h;
+ if (eh->reloc_entries == NULL)
+ return true;
- default:
- bfd_set_error (bfd_error_bad_value);
- free (contents);
- return false;
+ /* First handle the non-shared case. */
+ if (!info->shared
+ && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
+ && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ || (hplink->root.dynamic_sections_created
+ && (h->root.type == bfd_link_hash_undefweak
+ || h->root.type == bfd_link_hash_undefined))))
+ {
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0
+ && h->type != STT_PARISC_MILLI)
+ {
+ if (! bfd_elf32_link_record_dynamic_symbol (info, h))
+ return false;
}
+
+ /* If that succeeded, we know we'll be keeping all the relocs. */
+ if (h->dynindx != -1)
+ return true;
+ }
+
+#if ! LONG_BRANCH_PIC_IN_SHLIB && LONG_BRANCH_VIA_PLT
+ /* Handle the stub reloc case. If we have a plt entry for the
+ function, we won't be needing long branch stubs. c->count will
+ only be zero for stub relocs, which provides a handy way of
+ flagging these relocs, and means we need do nothing special for
+ the forced local and symbolic link case. */
+ if (eh->stub_reloc_sec != NULL
+ && eh->elf.plt.offset != (bfd_vma) -1)
+ {
+ struct elf32_hppa_dyn_reloc_entry *c;
+
+ for (c = eh->reloc_entries; c != NULL; c = c->next)
+ if (c->count == 0)
+ c->section->_raw_size -= sizeof (Elf32_External_Rela);
+ }
+#endif
+
+ /* Discard any relocs in the non-shared case. For the shared case,
+ if a symbol has been forced local or we have found a regular
+ definition for the symbolic link case, then we won't be needing
+ any relocs. */
+ if (!info->shared
+ || ((eh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
+ && ((eh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0
+ || info->symbolic)))
+ {
+ struct elf32_hppa_dyn_reloc_entry *c;
+
+ for (c = eh->reloc_entries; c != NULL; c = c->next)
+ c->section->_raw_size -= c->count * sizeof (Elf32_External_Rela);
}
- free (contents);
+
return true;
}
-/* Undo the generic ELF code's subtraction of section->vma from the
- value of each external symbol. */
+/* This function is called via elf_link_hash_traverse to force
+ millicode symbols local so they do not end up as globals in the
+ dynamic symbol table. We ought to be able to do this in
+ adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
+ for all dynamic symbols. Arguably, this is a bug in
+ elf_adjust_dynamic_symbol. */
static boolean
-elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
- bfd *abfd;
+clobber_millicode_symbols (h, info)
+ struct elf_link_hash_entry *h;
struct bfd_link_info *info;
- const Elf_Internal_Sym *sym;
- const char **namep;
- flagword *flagsp;
- asection **secp;
- bfd_vma *valp;
{
- *valp += (*secp)->vma;
+ /* We only want to remove these from the dynamic symbol table.
+ Therefore we do not leave ELF_LINK_FORCED_LOCAL set. */
+ if (h->type == STT_PARISC_MILLI)
+ {
+ unsigned short oldflags = h->elf_link_hash_flags;
+ h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL;
+ elf32_hppa_hide_symbol (info, h);
+ h->elf_link_hash_flags &= ~ELF_LINK_FORCED_LOCAL;
+ h->elf_link_hash_flags |= oldflags & ELF_LINK_FORCED_LOCAL;
+ }
+ return true;
+}
+
+/* Set the sizes of the dynamic sections. */
+
+static boolean
+elf32_hppa_size_dynamic_sections (output_bfd, info)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+{
+ struct elf32_hppa_link_hash_table *hplink;
+ bfd *dynobj;
+ bfd *i;
+ asection *s;
+ boolean relocs;
+ boolean reltext;
+
+ hplink = hppa_link_hash_table (info);
+ dynobj = hplink->root.dynobj;
+ if (dynobj == NULL)
+ abort ();
+
+ if (hplink->root.dynamic_sections_created)
+ {
+ /* Set the contents of the .interp section to the interpreter. */
+ if (! info->shared)
+ {
+ s = bfd_get_section_by_name (dynobj, ".interp");
+ if (s == NULL)
+ abort ();
+ s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
+ s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
+ }
+
+ /* Force millicode symbols local. */
+ elf_link_hash_traverse (&hplink->root,
+ clobber_millicode_symbols,
+ info);
+ }
+ else
+ {
+ /* Run through the function symbols, looking for any that are
+ PIC, and allocate space for the necessary .plt entries so
+ that %r19 will be set up. */
+ if (! info->shared)
+ elf_link_hash_traverse (&hplink->root,
+ hppa_handle_PIC_calls,
+ info);
+ }
+
+ /* Set up .got and .plt offsets for local syms. */
+ for (i = info->input_bfds; i; i = i->link_next)
+ {
+ bfd_signed_vma *local_got;
+ bfd_signed_vma *end_local_got;
+ bfd_signed_vma *local_plt;
+ bfd_signed_vma *end_local_plt;
+ bfd_size_type locsymcount;
+ Elf_Internal_Shdr *symtab_hdr;
+ asection *srel;
+
+ if (bfd_get_flavour (i) != bfd_target_elf_flavour)
+ continue;
+
+ local_got = elf_local_got_refcounts (i);
+ if (!local_got)
+ continue;
+
+ symtab_hdr = &elf_tdata (i)->symtab_hdr;
+ locsymcount = symtab_hdr->sh_info;
+ end_local_got = local_got + locsymcount;
+ s = hplink->sgot;
+ srel = hplink->srelgot;
+ for (; local_got < end_local_got; ++local_got)
+ {
+ if (*local_got > 0)
+ {
+ *local_got = s->_raw_size;
+ s->_raw_size += GOT_ENTRY_SIZE;
+ if (info->shared)
+ srel->_raw_size += sizeof (Elf32_External_Rela);
+ }
+ else
+ *local_got = (bfd_vma) -1;
+ }
+
+ local_plt = end_local_got;
+ end_local_plt = local_plt + locsymcount;
+ if (! hplink->root.dynamic_sections_created)
+ {
+ /* Won't be used, but be safe. */
+ for (; local_plt < end_local_plt; ++local_plt)
+ *local_plt = (bfd_vma) -1;
+ }
+ else
+ {
+ s = hplink->splt;
+ srel = hplink->srelplt;
+ for (; local_plt < end_local_plt; ++local_plt)
+ {
+ if (*local_plt > 0)
+ {
+ *local_plt = s->_raw_size;
+ s->_raw_size += PLT_ENTRY_SIZE;
+ if (info->shared)
+ srel->_raw_size += sizeof (Elf32_External_Rela);
+ }
+ else
+ *local_plt = (bfd_vma) -1;
+ }
+ }
+ }
+
+ /* Allocate global sym .plt and .got entries. Also discard all
+ unneeded relocs. */
+ elf_link_hash_traverse (&hplink->root,
+ allocate_plt_and_got_and_discard_relocs,
+ (PTR) info);
+
+ /* The check_relocs and adjust_dynamic_symbol entry points have
+ determined the sizes of the various dynamic sections. Allocate
+ memory for them. */
+ relocs = false;
+ reltext = false;
+ for (s = dynobj->sections; s != NULL; s = s->next)
+ {
+ if ((s->flags & SEC_LINKER_CREATED) == 0)
+ continue;
+
+ if (s == hplink->splt)
+ {
+ if (hplink->need_plt_stub)
+ {
+ /* Make space for the plt stub at the end of the .plt
+ section. We want this stub right at the end, up
+ against the .got section. */
+ int gotalign = bfd_section_alignment (dynobj, hplink->sgot);
+ int pltalign = bfd_section_alignment (dynobj, s);
+ bfd_size_type mask;
+
+ if (gotalign > pltalign)
+ bfd_set_section_alignment (dynobj, s, gotalign);
+ mask = ((bfd_size_type) 1 << gotalign) - 1;
+ s->_raw_size = (s->_raw_size + sizeof (plt_stub) + mask) & ~mask;
+ }
+ }
+ else if (s == hplink->sgot)
+ ;
+ else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
+ {
+ if (s->_raw_size != 0)
+ {
+ asection *target;
+ const char *outname;
+
+ /* Remember whether there are any reloc sections other
+ than .rela.plt. */
+ if (s != hplink->srelplt)
+ relocs = true;
+
+ /* If this relocation section applies to a read only
+ section, then we probably need a DT_TEXTREL entry. */
+ outname = bfd_get_section_name (output_bfd,
+ s->output_section);
+ target = bfd_get_section_by_name (output_bfd, outname + 5);
+ if (target != NULL
+ && (target->flags & SEC_READONLY) != 0
+ && (target->flags & SEC_ALLOC) != 0)
+ reltext = true;
+
+ /* We use the reloc_count field as a counter if we need
+ to copy relocs into the output file. */
+ s->reloc_count = 0;
+ }
+ }
+ else
+ {
+ /* It's not one of our sections, so don't allocate space. */
+ continue;
+ }
+
+ if (s->_raw_size == 0)
+ {
+ /* If we don't need this section, strip it from the
+ output file. This is mostly to handle .rela.bss and
+ .rela.plt. We must create both sections in
+ create_dynamic_sections, because they must be created
+ before the linker maps input sections to output
+ sections. The linker does that before
+ adjust_dynamic_symbol is called, and it is that
+ function which decides whether anything needs to go
+ into these sections. */
+ _bfd_strip_section_from_output (info, s);
+ continue;
+ }
+
+ /* Allocate memory for the section contents. Zero it, because
+ we may not fill in all the reloc sections. */
+ s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
+ if (s->contents == NULL && s->_raw_size != 0)
+ return false;
+ }
+
+ if (hplink->root.dynamic_sections_created)
+ {
+ /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
+ actually has nothing to do with the PLT, it is how we
+ communicate the LTP value of a load module to the dynamic
+ linker. */
+#define add_dynamic_entry(TAG, VAL) \
+ bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
+
+ if (!add_dynamic_entry (DT_PLTGOT, 0))
+ return false;
+
+ /* Add some entries to the .dynamic section. We fill in the
+ values later, in elf32_hppa_finish_dynamic_sections, but we
+ must add the entries now so that we get the correct size for
+ the .dynamic section. The DT_DEBUG entry is filled in by the
+ dynamic linker and used by the debugger. */
+ if (!info->shared)
+ {
+ if (!add_dynamic_entry (DT_DEBUG, 0))
+ return false;
+ }
+
+ if (hplink->srelplt->_raw_size != 0)
+ {
+ if (!add_dynamic_entry (DT_PLTRELSZ, 0)
+ || !add_dynamic_entry (DT_PLTREL, DT_RELA)
+ || !add_dynamic_entry (DT_JMPREL, 0))
+ return false;
+ }
+
+ if (relocs)
+ {
+ if (!add_dynamic_entry (DT_RELA, 0)
+ || !add_dynamic_entry (DT_RELASZ, 0)
+ || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
+ return false;
+ }
+
+ if (reltext)
+ {
+ if (!add_dynamic_entry (DT_TEXTREL, 0))
+ return false;
+ info->flags |= DF_TEXTREL;
+ }
+ }
+#undef add_dynamic_entry
+
return true;
}
-/* Determine the name of the stub needed to perform a call assuming the
- argument relocation bits for caller and callee are in CALLER and CALLEE
- for a call from LOCATION to DESTINATION. Copy the name into STUB_NAME. */
+/* External entry points for sizing and building linker stubs. */
+
+/* Determine and set the size of the stub section for a final link.
+
+ The basic idea here is to examine all the relocations looking for
+ PC-relative calls to a target that is unreachable with a "bl"
+ instruction. */
+
+boolean
+elf32_hppa_size_stubs (output_bfd, stub_bfd, info, multi_subspace, group_size,
+ add_stub_section, layout_sections_again)
+ bfd *output_bfd;
+ bfd *stub_bfd;
+ struct bfd_link_info *info;
+ boolean multi_subspace;
+ bfd_signed_vma group_size;
+ asection * (*add_stub_section) PARAMS ((const char *, asection *));
+ void (*layout_sections_again) PARAMS ((void));
+{
+ bfd *input_bfd;
+ asection *section;
+ asection **input_list, **list;
+ Elf_Internal_Sym *local_syms, **all_local_syms;
+ unsigned int bfd_indx, bfd_count;
+ int top_id, top_index;
+ struct elf32_hppa_link_hash_table *hplink;
+ bfd_size_type stub_group_size;
+ boolean stubs_always_before_branch;
+ boolean stub_changed = 0;
+ boolean ret = 0;
+ bfd_size_type amt;
+
+ hplink = hppa_link_hash_table (info);
+
+ /* Stash our params away. */
+ hplink->stub_bfd = stub_bfd;
+ hplink->multi_subspace = multi_subspace;
+ hplink->add_stub_section = add_stub_section;
+ hplink->layout_sections_again = layout_sections_again;
+ stubs_always_before_branch = group_size < 0;
+ if (group_size < 0)
+ stub_group_size = -group_size;
+ else
+ stub_group_size = group_size;
+ if (stub_group_size == 1)
+ {
+ /* Default values. */
+ stub_group_size = 8000000;
+ if (hplink->has_17bit_branch || hplink->multi_subspace)
+ stub_group_size = 250000;
+ if (hplink->has_12bit_branch)
+ stub_group_size = 7812;
+ }
+
+ /* Count the number of input BFDs and find the top input section id. */
+ for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
+ input_bfd != NULL;
+ input_bfd = input_bfd->link_next)
+ {
+ bfd_count += 1;
+ for (section = input_bfd->sections;
+ section != NULL;
+ section = section->next)
+ {
+ if (top_id < section->id)
+ top_id = section->id;
+ }
+ }
+
+ amt = sizeof (struct map_stub) * (top_id + 1);
+ hplink->stub_group = (struct map_stub *) bfd_zmalloc (amt);
+ if (hplink->stub_group == NULL)
+ return false;
+
+ /* Make a list of input sections for each output section included in
+ the link.
+
+ We can't use output_bfd->section_count here to find the top output
+ section index as some sections may have been removed, and
+ _bfd_strip_section_from_output doesn't renumber the indices. */
+ for (section = output_bfd->sections, top_index = 0;
+ section != NULL;
+ section = section->next)
+ {
+ if (top_index < section->index)
+ top_index = section->index;
+ }
+
+ amt = sizeof (asection *) * (top_index + 1);
+ input_list = (asection **) bfd_malloc (amt);
+ if (input_list == NULL)
+ return false;
+
+ /* For sections we aren't interested in, mark their entries with a
+ value we can check later. */
+ list = input_list + top_index;
+ do
+ *list = bfd_abs_section_ptr;
+ while (list-- != input_list);
+
+ for (section = output_bfd->sections;
+ section != NULL;
+ section = section->next)
+ {
+ if ((section->flags & SEC_CODE) != 0)
+ input_list[section->index] = NULL;
+ }
+
+ /* Now actually build the lists. */
+ for (input_bfd = info->input_bfds;
+ input_bfd != NULL;
+ input_bfd = input_bfd->link_next)
+ {
+ for (section = input_bfd->sections;
+ section != NULL;
+ section = section->next)
+ {
+ if (section->output_section != NULL
+ && section->output_section->owner == output_bfd
+ && section->output_section->index <= top_index)
+ {
+ list = input_list + section->output_section->index;
+ if (*list != bfd_abs_section_ptr)
+ {
+ /* Steal the link_sec pointer for our list. */
+#define PREV_SEC(sec) (hplink->stub_group[(sec)->id].link_sec)
+ /* This happens to make the list in reverse order,
+ which is what we want. */
+ PREV_SEC (section) = *list;
+ *list = section;
+ }
+ }
+ }
+ }
+
+ /* See whether we can group stub sections together. Grouping stub
+ sections may result in fewer stubs. More importantly, we need to
+ put all .init* and .fini* stubs at the beginning of the .init or
+ .fini output sections respectively, because glibc splits the
+ _init and _fini functions into multiple parts. Putting a stub in
+ the middle of a function is not a good idea. */
+ list = input_list + top_index;
+ do
+ {
+ asection *tail = *list;
+ if (tail == bfd_abs_section_ptr)
+ continue;
+ while (tail != NULL)
+ {
+ asection *curr;
+ asection *prev;
+ bfd_size_type total;
+
+ curr = tail;
+ if (tail->_cooked_size)
+ total = tail->_cooked_size;
+ else
+ total = tail->_raw_size;
+ while ((prev = PREV_SEC (curr)) != NULL
+ && ((total += curr->output_offset - prev->output_offset)
+ < stub_group_size))
+ curr = prev;
+
+ /* OK, the size from the start of CURR to the end is less
+ than 250000 bytes and thus can be handled by one stub
+ section. (or the tail section is itself larger than
+ 250000 bytes, in which case we may be toast.)
+ We should really be keeping track of the total size of
+ stubs added here, as stubs contribute to the final output
+ section size. That's a little tricky, and this way will
+ only break if stubs added total more than 12144 bytes, or
+ 1518 long branch stubs. It seems unlikely for more than
+ 1518 different functions to be called, especially from
+ code only 250000 bytes long. */
+ do
+ {
+ prev = PREV_SEC (tail);
+ /* Set up this stub group. */
+ hplink->stub_group[tail->id].link_sec = curr;
+ }
+ while (tail != curr && (tail = prev) != NULL);
+
+ /* But wait, there's more! Input sections up to 250000
+ bytes before the stub section can be handled by it too. */
+ if (!stubs_always_before_branch)
+ {
+ total = 0;
+ while (prev != NULL
+ && ((total += tail->output_offset - prev->output_offset)
+ < stub_group_size))
+ {
+ tail = prev;
+ prev = PREV_SEC (tail);
+ hplink->stub_group[tail->id].link_sec = curr;
+ }
+ }
+ tail = prev;
+ }
+ }
+ while (list-- != input_list);
+ free (input_list);
+#undef PREV_SEC
+
+ /* We want to read in symbol extension records only once. To do this
+ we need to read in the local symbols in parallel and save them for
+ later use; so hold pointers to the local symbols in an array. */
+ amt = sizeof (Elf_Internal_Sym *) * bfd_count;
+ all_local_syms = (Elf_Internal_Sym **) bfd_zmalloc (amt);
+ if (all_local_syms == NULL)
+ return false;
+
+ /* Walk over all the input BFDs, swapping in local symbols.
+ If we are creating a shared library, create hash entries for the
+ export stubs. */
+ for (input_bfd = info->input_bfds, bfd_indx = 0;
+ input_bfd != NULL;
+ input_bfd = input_bfd->link_next, bfd_indx++)
+ {
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Sym *isym;
+ Elf32_External_Sym *ext_syms, *esym, *end_sy;
+ bfd_size_type sec_size;
+
+ /* We'll need the symbol table in a second. */
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ if (symtab_hdr->sh_info == 0)
+ continue;
+
+ /* We need an array of the local symbols attached to the input bfd.
+ Unfortunately, we're going to have to read & swap them in. */
+ sec_size = symtab_hdr->sh_info;
+ sec_size *= sizeof (Elf_Internal_Sym);
+ local_syms = (Elf_Internal_Sym *) bfd_malloc (sec_size);
+ if (local_syms == NULL)
+ {
+ goto error_ret_free_local;
+ }
+ all_local_syms[bfd_indx] = local_syms;
+ sec_size = symtab_hdr->sh_info;
+ sec_size *= sizeof (Elf32_External_Sym);
+ ext_syms = (Elf32_External_Sym *) bfd_malloc (sec_size);
+ if (ext_syms == NULL)
+ {
+ goto error_ret_free_local;
+ }
+
+ if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
+ || (bfd_bread (ext_syms, sec_size, input_bfd) != sec_size))
+ {
+ free (ext_syms);
+ goto error_ret_free_local;
+ }
+
+ /* Swap the local symbols in. */
+ isym = local_syms;
+ esym = ext_syms;
+ for (end_sy = esym + symtab_hdr->sh_info; esym < end_sy; esym++, isym++)
+ bfd_elf32_swap_symbol_in (input_bfd, esym, isym);
+
+ /* Now we can free the external symbols. */
+ free (ext_syms);
+
+#if ! LONG_BRANCH_PIC_IN_SHLIB
+ /* If this is a shared link, find all the stub reloc sections. */
+ if (info->shared)
+ for (section = input_bfd->sections;
+ section != NULL;
+ section = section->next)
+ {
+ char *name;
+ asection *reloc_sec;
+
+ name = bfd_malloc ((bfd_size_type) strlen (section->name)
+ + sizeof STUB_SUFFIX
+ + 5);
+ if (name == NULL)
+ return false;
+ sprintf (name, ".rela%s%s", section->name, STUB_SUFFIX);
+ reloc_sec = bfd_get_section_by_name (hplink->root.dynobj, name);
+ hplink->stub_group[section->id].reloc_sec = reloc_sec;
+ free (name);
+ }
+#endif
+
+ if (info->shared && hplink->multi_subspace)
+ {
+ struct elf_link_hash_entry **sym_hashes;
+ struct elf_link_hash_entry **end_hashes;
+ unsigned int symcount;
+
+ symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
+ - symtab_hdr->sh_info);
+ sym_hashes = elf_sym_hashes (input_bfd);
+ end_hashes = sym_hashes + symcount;
+
+ /* Look through the global syms for functions; We need to
+ build export stubs for all globally visible functions. */
+ for (; sym_hashes < end_hashes; sym_hashes++)
+ {
+ struct elf32_hppa_link_hash_entry *hash;
+
+ hash = (struct elf32_hppa_link_hash_entry *) *sym_hashes;
+
+ while (hash->elf.root.type == bfd_link_hash_indirect
+ || hash->elf.root.type == bfd_link_hash_warning)
+ hash = ((struct elf32_hppa_link_hash_entry *)
+ hash->elf.root.u.i.link);
+
+ /* At this point in the link, undefined syms have been
+ resolved, so we need to check that the symbol was
+ defined in this BFD. */
+ if ((hash->elf.root.type == bfd_link_hash_defined
+ || hash->elf.root.type == bfd_link_hash_defweak)
+ && hash->elf.type == STT_FUNC
+ && hash->elf.root.u.def.section->output_section != NULL
+ && (hash->elf.root.u.def.section->output_section->owner
+ == output_bfd)
+ && hash->elf.root.u.def.section->owner == input_bfd
+ && (hash->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)
+ && !(hash->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL)
+ && ELF_ST_VISIBILITY (hash->elf.other) == STV_DEFAULT)
+ {
+ asection *sec;
+ const char *stub_name;
+ struct elf32_hppa_stub_hash_entry *stub_entry;
+
+ sec = hash->elf.root.u.def.section;
+ stub_name = hash->elf.root.root.string;
+ stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table,
+ stub_name,
+ false, false);
+ if (stub_entry == NULL)
+ {
+ stub_entry = hppa_add_stub (stub_name, sec, hplink);
+ if (!stub_entry)
+ goto error_ret_free_local;
+
+ stub_entry->target_value = hash->elf.root.u.def.value;
+ stub_entry->target_section = hash->elf.root.u.def.section;
+ stub_entry->stub_type = hppa_stub_export;
+ stub_entry->h = hash;
+ stub_changed = 1;
+ }
+ else
+ {
+ (*_bfd_error_handler) (_("%s: duplicate export stub %s"),
+ bfd_get_filename (input_bfd),
+ stub_name);
+ }
+ }
+ }
+ }
+ }
+
+ while (1)
+ {
+ asection *stub_sec;
+
+ for (input_bfd = info->input_bfds, bfd_indx = 0;
+ input_bfd != NULL;
+ input_bfd = input_bfd->link_next, bfd_indx++)
+ {
+ Elf_Internal_Shdr *symtab_hdr;
+
+ /* We'll need the symbol table in a second. */
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ if (symtab_hdr->sh_info == 0)
+ continue;
+
+ local_syms = all_local_syms[bfd_indx];
+
+ /* Walk over each section attached to the input bfd. */
+ for (section = input_bfd->sections;
+ section != NULL;
+ section = section->next)
+ {
+ Elf_Internal_Shdr *input_rel_hdr;
+ Elf32_External_Rela *external_relocs, *erelaend, *erela;
+ Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
+
+ /* If there aren't any relocs, then there's nothing more
+ to do. */
+ if ((section->flags & SEC_RELOC) == 0
+ || section->reloc_count == 0)
+ continue;
+
+ /* If this section is a link-once section that will be
+ discarded, then don't create any stubs. */
+ if (section->output_section == NULL
+ || section->output_section->owner != output_bfd)
+ continue;
+
+ /* Allocate space for the external relocations. */
+ amt = section->reloc_count;
+ amt *= sizeof (Elf32_External_Rela);
+ external_relocs = (Elf32_External_Rela *) bfd_malloc (amt);
+ if (external_relocs == NULL)
+ {
+ goto error_ret_free_local;
+ }
+
+ /* Likewise for the internal relocations. */
+ amt = section->reloc_count;
+ amt *= sizeof (Elf_Internal_Rela);
+ internal_relocs = (Elf_Internal_Rela *) bfd_malloc (amt);
+ if (internal_relocs == NULL)
+ {
+ free (external_relocs);
+ goto error_ret_free_local;
+ }
+
+ /* Read in the external relocs. */
+ input_rel_hdr = &elf_section_data (section)->rel_hdr;
+ if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0
+ || bfd_bread (external_relocs,
+ input_rel_hdr->sh_size,
+ input_bfd) != input_rel_hdr->sh_size)
+ {
+ free (external_relocs);
+ error_ret_free_internal:
+ free (internal_relocs);
+ goto error_ret_free_local;
+ }
+
+ /* Swap in the relocs. */
+ erela = external_relocs;
+ erelaend = erela + section->reloc_count;
+ irela = internal_relocs;
+ for (; erela < erelaend; erela++, irela++)
+ bfd_elf32_swap_reloca_in (input_bfd, erela, irela);
+
+ /* We're done with the external relocs, free them. */
+ free (external_relocs);
+
+ /* Now examine each relocation. */
+ irela = internal_relocs;
+ irelaend = irela + section->reloc_count;
+ for (; irela < irelaend; irela++)
+ {
+ unsigned int r_type, r_indx;
+ enum elf32_hppa_stub_type stub_type;
+ struct elf32_hppa_stub_hash_entry *stub_entry;
+ asection *sym_sec;
+ bfd_vma sym_value;
+ bfd_vma destination;
+ struct elf32_hppa_link_hash_entry *hash;
+ char *stub_name;
+ const asection *id_sec;
+
+ r_type = ELF32_R_TYPE (irela->r_info);
+ r_indx = ELF32_R_SYM (irela->r_info);
+
+ if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ goto error_ret_free_internal;
+ }
+
+ /* Only look for stubs on call instructions. */
+ if (r_type != (unsigned int) R_PARISC_PCREL12F
+ && r_type != (unsigned int) R_PARISC_PCREL17F
+ && r_type != (unsigned int) R_PARISC_PCREL22F)
+ continue;
+
+ /* Now determine the call target, its name, value,
+ section. */
+ sym_sec = NULL;
+ sym_value = 0;
+ destination = 0;
+ hash = NULL;
+ if (r_indx < symtab_hdr->sh_info)
+ {
+ /* It's a local symbol. */
+ Elf_Internal_Sym *sym;
+ Elf_Internal_Shdr *hdr;
+
+ sym = local_syms + r_indx;
+ hdr = elf_elfsections (input_bfd)[sym->st_shndx];
+ sym_sec = hdr->bfd_section;
+ if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
+ sym_value = sym->st_value;
+ destination = (sym_value + irela->r_addend
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+ }
+ else
+ {
+ /* It's an external symbol. */
+ int e_indx;
+
+ e_indx = r_indx - symtab_hdr->sh_info;
+ hash = ((struct elf32_hppa_link_hash_entry *)
+ elf_sym_hashes (input_bfd)[e_indx]);
+
+ while (hash->elf.root.type == bfd_link_hash_indirect
+ || hash->elf.root.type == bfd_link_hash_warning)
+ hash = ((struct elf32_hppa_link_hash_entry *)
+ hash->elf.root.u.i.link);
+
+ if (hash->elf.root.type == bfd_link_hash_defined
+ || hash->elf.root.type == bfd_link_hash_defweak)
+ {
+ sym_sec = hash->elf.root.u.def.section;
+ sym_value = hash->elf.root.u.def.value;
+ if (sym_sec->output_section != NULL)
+ destination = (sym_value + irela->r_addend
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+ }
+ else if (hash->elf.root.type == bfd_link_hash_undefweak)
+ {
+ if (! info->shared)
+ continue;
+ }
+ else if (hash->elf.root.type == bfd_link_hash_undefined)
+ {
+ if (! (info->shared
+ && !info->no_undefined
+ && (ELF_ST_VISIBILITY (hash->elf.other)
+ == STV_DEFAULT)))
+ continue;
+ }
+ else
+ {
+ bfd_set_error (bfd_error_bad_value);
+ goto error_ret_free_internal;
+ }
+ }
+
+ /* Determine what (if any) linker stub is needed. */
+ stub_type = hppa_type_of_stub (section, irela, hash,
+ destination);
+ if (stub_type == hppa_stub_none)
+ continue;
+
+ /* Support for grouping stub sections. */
+ id_sec = hplink->stub_group[section->id].link_sec;
+
+ /* Get the name of this stub. */
+ stub_name = hppa_stub_name (id_sec, sym_sec, hash, irela);
+ if (!stub_name)
+ goto error_ret_free_internal;
+
+ stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table,
+ stub_name,
+ false, false);
+ if (stub_entry != NULL)
+ {
+ /* The proper stub has already been created. */
+ free (stub_name);
+ continue;
+ }
+
+ stub_entry = hppa_add_stub (stub_name, section, hplink);
+ if (stub_entry == NULL)
+ {
+ free (stub_name);
+ goto error_ret_free_local;
+ }
+
+ stub_entry->target_value = sym_value;
+ stub_entry->target_section = sym_sec;
+ stub_entry->stub_type = stub_type;
+ if (info->shared)
+ {
+ if (stub_type == hppa_stub_import)
+ stub_entry->stub_type = hppa_stub_import_shared;
+ else if (stub_type == hppa_stub_long_branch
+ && (LONG_BRANCH_PIC_IN_SHLIB || hash == NULL))
+ stub_entry->stub_type = hppa_stub_long_branch_shared;
+ }
+ stub_entry->h = hash;
+ stub_changed = 1;
+ }
+
+ /* We're done with the internal relocs, free them. */
+ free (internal_relocs);
+ }
+ }
+
+ if (!stub_changed)
+ break;
+
+ /* OK, we've added some stubs. Find out the new size of the
+ stub sections. */
+ for (stub_sec = hplink->stub_bfd->sections;
+ stub_sec != NULL;
+ stub_sec = stub_sec->next)
+ {
+ stub_sec->_raw_size = 0;
+ stub_sec->_cooked_size = 0;
+ }
+#if ! LONG_BRANCH_PIC_IN_SHLIB
+ {
+ int i;
+
+ for (i = top_id; i >= 0; --i)
+ {
+ /* This will probably hit the same section many times.. */
+ stub_sec = hplink->stub_group[i].reloc_sec;
+ if (stub_sec != NULL)
+ {
+ stub_sec->_raw_size = 0;
+ stub_sec->_cooked_size = 0;
+ }
+ }
+ }
+#endif
+
+ bfd_hash_traverse (&hplink->stub_hash_table,
+ hppa_size_one_stub,
+ hplink);
+
+ /* Ask the linker to do its stuff. */
+ (*hplink->layout_sections_again) ();
+ stub_changed = 0;
+ }
+
+ ret = 1;
+
+ error_ret_free_local:
+ while (bfd_count-- > 0)
+ if (all_local_syms[bfd_count])
+ free (all_local_syms[bfd_count]);
+ free (all_local_syms);
+
+ return ret;
+}
+
+/* For a final link, this function is called after we have sized the
+ stubs to provide a value for __gp. */
+
+boolean
+elf32_hppa_set_gp (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ struct elf32_hppa_link_hash_table *hplink;
+ struct elf_link_hash_entry *h;
+ asection *sec;
+ bfd_vma gp_val;
+
+ hplink = hppa_link_hash_table (info);
+ h = elf_link_hash_lookup (&hplink->root, "$global$",
+ false, false, false);
+
+ if (h != NULL
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak))
+ {
+ gp_val = h->root.u.def.value;
+ sec = h->root.u.def.section;
+ }
+ else
+ {
+ /* Choose to point our LTP at, in this order, one of .plt, .got,
+ or .data, if these sections exist. In the case of choosing
+ .plt try to make the LTP ideal for addressing anywhere in the
+ .plt or .got with a 14 bit signed offset. Typically, the end
+ of the .plt is the start of the .got, so choose .plt + 0x2000
+ if either the .plt or .got is larger than 0x2000. If both
+ the .plt and .got are smaller than 0x2000, choose the end of
+ the .plt section. */
+
+ sec = hplink->splt;
+ if (sec != NULL)
+ {
+ gp_val = sec->_raw_size;
+ if (gp_val > 0x2000
+ || (hplink->sgot && hplink->sgot->_raw_size > 0x2000))
+ {
+ gp_val = 0x2000;
+ }
+ }
+ else
+ {
+ gp_val = 0;
+ sec = hplink->sgot;
+ if (sec != NULL)
+ {
+ /* We know we don't have a .plt. If .got is large,
+ offset our LTP. */
+ if (sec->_raw_size > 0x2000)
+ gp_val = 0x2000;
+ }
+ else
+ {
+ /* No .plt or .got. Who cares what the LTP is? */
+ sec = bfd_get_section_by_name (abfd, ".data");
+ }
+ }
+
+ if (h != NULL)
+ {
+ h->root.type = bfd_link_hash_defined;
+ h->root.u.def.value = gp_val;
+ if (sec != NULL)
+ h->root.u.def.section = sec;
+ else
+ h->root.u.def.section = bfd_abs_section_ptr;
+ }
+ }
+
+ if (sec != NULL && sec->output_section != NULL)
+ gp_val += sec->output_section->vma + sec->output_offset;
+
+ elf_gp (abfd) = gp_val;
+ return true;
+}
+
+/* Build all the stubs associated with the current output file. The
+ stubs are kept in a hash table attached to the main linker hash
+ table. We also set up the .plt entries for statically linked PIC
+ functions here. This function is called via hppaelf_finish in the
+ linker. */
+
+boolean
+elf32_hppa_build_stubs (info)
+ struct bfd_link_info *info;
+{
+ asection *stub_sec;
+ struct bfd_hash_table *table;
+ struct elf32_hppa_link_hash_table *hplink;
+
+ hplink = hppa_link_hash_table (info);
+
+ for (stub_sec = hplink->stub_bfd->sections;
+ stub_sec != NULL;
+ stub_sec = stub_sec->next)
+ {
+ bfd_size_type size;
+
+ /* Allocate memory to hold the linker stubs. */
+ size = stub_sec->_raw_size;
+ stub_sec->contents = (unsigned char *) bfd_zalloc (hplink->stub_bfd,
+ size);
+ if (stub_sec->contents == NULL && size != 0)
+ return false;
+ stub_sec->_raw_size = 0;
+ }
+
+ /* Build the stubs as directed by the stub hash table. */
+ table = &hplink->stub_hash_table;
+ bfd_hash_traverse (table, hppa_build_one_stub, info);
+
+ return true;
+}
+
+/* Perform a final link. */
+
+static boolean
+elf32_hppa_final_link (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ asection *s;
+
+ /* Invoke the regular ELF linker to do all the work. */
+ if (!bfd_elf32_bfd_final_link (abfd, info))
+ return false;
+
+ /* If we're producing a final executable, sort the contents of the
+ unwind section. Magic section names, but this is much safer than
+ having elf32_hppa_relocate_section remember where SEGREL32 relocs
+ occurred. Consider what happens if someone inept creates a
+ linker script that puts unwind information in .text. */
+ s = bfd_get_section_by_name (abfd, ".PARISC.unwind");
+ if (s != NULL)
+ {
+ bfd_size_type size;
+ char *contents;
+
+ size = s->_raw_size;
+ contents = bfd_malloc (size);
+ if (contents == NULL)
+ return false;
+
+ if (! bfd_get_section_contents (abfd, s, contents, (file_ptr) 0, size))
+ return false;
+
+ qsort (contents, (size_t) (size / 16), 16, hppa_unwind_entry_compare);
+
+ if (! bfd_set_section_contents (abfd, s, contents, (file_ptr) 0, size))
+ return false;
+ }
+ return true;
+}
+
+/* Record the lowest address for the data and text segments. */
+
+static void
+hppa_record_segment_addr (abfd, section, data)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ asection *section;
+ PTR data;
+{
+ struct elf32_hppa_link_hash_table *hplink;
+
+ hplink = (struct elf32_hppa_link_hash_table *) data;
+
+ if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
+ {
+ bfd_vma value = section->vma - section->filepos;
+
+ if ((section->flags & SEC_READONLY) != 0)
+ {
+ if (value < hplink->text_segment_base)
+ hplink->text_segment_base = value;
+ }
+ else
+ {
+ if (value < hplink->data_segment_base)
+ hplink->data_segment_base = value;
+ }
+ }
+}
+
+/* Perform a relocation as part of a final link. */
+
+static bfd_reloc_status_type
+final_link_relocate (input_section, contents, rel, value, hplink, sym_sec, h)
+ asection *input_section;
+ bfd_byte *contents;
+ const Elf_Internal_Rela *rel;
+ bfd_vma value;
+ struct elf32_hppa_link_hash_table *hplink;
+ asection *sym_sec;
+ struct elf32_hppa_link_hash_entry *h;
+{
+ int insn;
+ unsigned int r_type = ELF32_R_TYPE (rel->r_info);
+ reloc_howto_type *howto = elf_hppa_howto_table + r_type;
+ int r_format = howto->bitsize;
+ enum hppa_reloc_field_selector_type_alt r_field;
+ bfd *input_bfd = input_section->owner;
+ bfd_vma offset = rel->r_offset;
+ bfd_vma max_branch_offset = 0;
+ bfd_byte *hit_data = contents + offset;
+ bfd_signed_vma addend = rel->r_addend;
+ bfd_vma location;
+ struct elf32_hppa_stub_hash_entry *stub_entry = NULL;
+ int val;
+
+ if (r_type == R_PARISC_NONE)
+ return bfd_reloc_ok;
+
+ insn = bfd_get_32 (input_bfd, hit_data);
+
+ /* Find out where we are and where we're going. */
+ location = (offset +
+ input_section->output_offset +
+ input_section->output_section->vma);
+
+ switch (r_type)
+ {
+ case R_PARISC_PCREL12F:
+ case R_PARISC_PCREL17F:
+ case R_PARISC_PCREL22F:
+ /* If this is a call to a function defined in another dynamic
+ library, or if it is a call to a PIC function in the same
+ object, or if this is a shared link and it is a call to a
+ weak symbol which may or may not be in the same object, then
+ find the import stub in the stub hash. */
+ if (sym_sec == NULL
+ || sym_sec->output_section == NULL
+ || (h != NULL
+ && ((h->maybe_pic_call
+ && !(input_section->flags & SEC_HAS_GOT_REF))
+ || (h->elf.root.type == bfd_link_hash_defweak
+ && h->elf.dynindx != -1
+ && h->elf.plt.offset != (bfd_vma) -1))))
+ {
+ stub_entry = hppa_get_stub_entry (input_section, sym_sec,
+ h, rel, hplink);
+ if (stub_entry != NULL)
+ {
+ value = (stub_entry->stub_offset
+ + stub_entry->stub_sec->output_offset
+ + stub_entry->stub_sec->output_section->vma);
+ addend = 0;
+ }
+ else if (sym_sec == NULL && h != NULL
+ && h->elf.root.type == bfd_link_hash_undefweak)
+ {
+ /* It's OK if undefined weak. Calls to undefined weak
+ symbols behave as if the "called" function
+ immediately returns. We can thus call to a weak
+ function without first checking whether the function
+ is defined. */
+ value = location;
+ addend = 8;
+ }
+ else
+ return bfd_reloc_notsupported;
+ }
+ /* Fall thru. */
+
+ case R_PARISC_PCREL21L:
+ case R_PARISC_PCREL17C:
+ case R_PARISC_PCREL17R:
+ case R_PARISC_PCREL14R:
+ case R_PARISC_PCREL14F:
+ /* Make it a pc relative offset. */
+ value -= location;
+ addend -= 8;
+ break;
+
+ case R_PARISC_DPREL21L:
+ case R_PARISC_DPREL14R:
+ case R_PARISC_DPREL14F:
+ /* For all the DP relative relocations, we need to examine the symbol's
+ section. If it's a code section, then "data pointer relative" makes
+ no sense. In that case we don't adjust the "value", and for 21 bit
+ addil instructions, we change the source addend register from %dp to
+ %r0. This situation commonly arises when a variable's "constness"
+ is declared differently from the way the variable is defined. For
+ instance: "extern int foo" with foo defined as "const int foo". */
+ if (sym_sec == NULL)
+ break;
+ if ((sym_sec->flags & SEC_CODE) != 0)
+ {
+ if ((insn & ((0x3f << 26) | (0x1f << 21)))
+ == (((int) OP_ADDIL << 26) | (27 << 21)))
+ {
+ insn &= ~ (0x1f << 21);
+#if 1 /* debug them. */
+ (*_bfd_error_handler)
+ (_("%s(%s+0x%lx): fixing %s"),
+ bfd_get_filename (input_bfd),
+ input_section->name,
+ (long) rel->r_offset,
+ howto->name);
+#endif
+ }
+ /* Now try to make things easy for the dynamic linker. */
+
+ break;
+ }
+ /* Fall thru. */
+
+ case R_PARISC_DLTIND21L:
+ case R_PARISC_DLTIND14R:
+ case R_PARISC_DLTIND14F:
+ value -= elf_gp (input_section->output_section->owner);
+ break;
+
+ case R_PARISC_SEGREL32:
+ if ((sym_sec->flags & SEC_CODE) != 0)
+ value -= hplink->text_segment_base;
+ else
+ value -= hplink->data_segment_base;
+ break;
+
+ default:
+ break;
+ }
+
+ switch (r_type)
+ {
+ case R_PARISC_DIR32:
+ case R_PARISC_DIR14F:
+ case R_PARISC_DIR17F:
+ case R_PARISC_PCREL17C:
+ case R_PARISC_PCREL14F:
+ case R_PARISC_DPREL14F:
+ case R_PARISC_PLABEL32:
+ case R_PARISC_DLTIND14F:
+ case R_PARISC_SEGBASE:
+ case R_PARISC_SEGREL32:
+ r_field = e_fsel;
+ break;
+
+ case R_PARISC_DIR21L:
+ case R_PARISC_PCREL21L:
+ case R_PARISC_DPREL21L:
+ case R_PARISC_PLABEL21L:
+ case R_PARISC_DLTIND21L:
+ r_field = e_lrsel;
+ break;
+
+ case R_PARISC_DIR17R:
+ case R_PARISC_PCREL17R:
+ case R_PARISC_DIR14R:
+ case R_PARISC_PCREL14R:
+ case R_PARISC_DPREL14R:
+ case R_PARISC_PLABEL14R:
+ case R_PARISC_DLTIND14R:
+ r_field = e_rrsel;
+ break;
+
+ case R_PARISC_PCREL12F:
+ case R_PARISC_PCREL17F:
+ case R_PARISC_PCREL22F:
+ r_field = e_fsel;
+
+ if (r_type == (unsigned int) R_PARISC_PCREL17F)
+ {
+ max_branch_offset = (1 << (17-1)) << 2;
+ }
+ else if (r_type == (unsigned int) R_PARISC_PCREL12F)
+ {
+ max_branch_offset = (1 << (12-1)) << 2;
+ }
+ else
+ {
+ max_branch_offset = (1 << (22-1)) << 2;
+ }
+
+ /* sym_sec is NULL on undefined weak syms or when shared on
+ undefined syms. We've already checked for a stub for the
+ shared undefined case. */
+ if (sym_sec == NULL)
+ break;
+
+ /* If the branch is out of reach, then redirect the
+ call to the local stub for this function. */
+ if (value + addend + max_branch_offset >= 2*max_branch_offset)
+ {
+ stub_entry = hppa_get_stub_entry (input_section, sym_sec,
+ h, rel, hplink);
+ if (stub_entry == NULL)
+ return bfd_reloc_notsupported;
+
+ /* Munge up the value and addend so that we call the stub
+ rather than the procedure directly. */
+ value = (stub_entry->stub_offset
+ + stub_entry->stub_sec->output_offset
+ + stub_entry->stub_sec->output_section->vma
+ - location);
+ addend = -8;
+ }
+ break;
+
+ /* Something we don't know how to handle. */
+ default:
+ return bfd_reloc_notsupported;
+ }
+
+ /* Make sure we can reach the stub. */
+ if (max_branch_offset != 0
+ && value + addend + max_branch_offset >= 2*max_branch_offset)
+ {
+ (*_bfd_error_handler)
+ (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
+ bfd_get_filename (input_bfd),
+ input_section->name,
+ (long) rel->r_offset,
+ stub_entry->root.string);
+ return bfd_reloc_notsupported;
+ }
+
+ val = hppa_field_adjust (value, addend, r_field);
+
+ switch (r_type)
+ {
+ case R_PARISC_PCREL12F:
+ case R_PARISC_PCREL17C:
+ case R_PARISC_PCREL17F:
+ case R_PARISC_PCREL17R:
+ case R_PARISC_PCREL22F:
+ case R_PARISC_DIR17F:
+ case R_PARISC_DIR17R:
+ /* This is a branch. Divide the offset by four.
+ Note that we need to decide whether it's a branch or
+ otherwise by inspecting the reloc. Inspecting insn won't
+ work as insn might be from a .word directive. */
+ val >>= 2;
+ break;
+
+ default:
+ break;
+ }
+
+ insn = hppa_rebuild_insn (insn, val, r_format);
+
+ /* Update the instruction word. */
+ bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
+ return bfd_reloc_ok;
+}
+
+/* Relocate an HPPA ELF section. */
+
+static boolean
+elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section,
+ contents, relocs, local_syms, local_sections)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ bfd *input_bfd;
+ asection *input_section;
+ bfd_byte *contents;
+ Elf_Internal_Rela *relocs;
+ Elf_Internal_Sym *local_syms;
+ asection **local_sections;
+{
+ bfd *dynobj;
+ bfd_vma *local_got_offsets;
+ struct elf32_hppa_link_hash_table *hplink;
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Rela *rel;
+ Elf_Internal_Rela *relend;
+ asection *sreloc;
+
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+
+ hplink = hppa_link_hash_table (info);
+ dynobj = hplink->root.dynobj;
+ local_got_offsets = elf_local_got_offsets (input_bfd);
+ sreloc = NULL;
+
+ rel = relocs;
+ relend = relocs + input_section->reloc_count;
+ for (; rel < relend; rel++)
+ {
+ unsigned int r_type;
+ reloc_howto_type *howto;
+ unsigned int r_symndx;
+ struct elf32_hppa_link_hash_entry *h;
+ Elf_Internal_Sym *sym;
+ asection *sym_sec;
+ bfd_vma relocation;
+ bfd_reloc_status_type r;
+ const char *sym_name;
+ boolean plabel;
+ bfd_vma off;
+
+ r_type = ELF32_R_TYPE (rel->r_info);
+ if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
+ || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
+ continue;
+
+ r_symndx = ELF32_R_SYM (rel->r_info);
+
+ if (info->relocateable)
+ {
+ /* This is a relocateable link. We don't have to change
+ anything, unless the reloc is against a section symbol,
+ in which case we have to adjust according to where the
+ section symbol winds up in the output section. */
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+ {
+ sym_sec = local_sections[r_symndx];
+ rel->r_addend += sym_sec->output_offset;
+ }
+ }
+ continue;
+ }
+
+ /* This is a final link. */
+ h = NULL;
+ sym = NULL;
+ sym_sec = NULL;
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ /* This is a local symbol, h defaults to NULL. */
+ sym = local_syms + r_symndx;
+ sym_sec = local_sections[r_symndx];
+ relocation = ((ELF_ST_TYPE (sym->st_info) == STT_SECTION
+ ? 0 : sym->st_value)
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+ }
+ else
+ {
+ int indx;
+
+ /* It's a global; Find its entry in the link hash. */
+ indx = r_symndx - symtab_hdr->sh_info;
+ h = ((struct elf32_hppa_link_hash_entry *)
+ elf_sym_hashes (input_bfd)[indx]);
+ while (h->elf.root.type == bfd_link_hash_indirect
+ || h->elf.root.type == bfd_link_hash_warning)
+ h = (struct elf32_hppa_link_hash_entry *) h->elf.root.u.i.link;
+
+ relocation = 0;
+ if (h->elf.root.type == bfd_link_hash_defined
+ || h->elf.root.type == bfd_link_hash_defweak)
+ {
+ sym_sec = h->elf.root.u.def.section;
+ /* If sym_sec->output_section is NULL, then it's a
+ symbol defined in a shared library. */
+ if (sym_sec->output_section != NULL)
+ relocation = (h->elf.root.u.def.value
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+ }
+ else if (h->elf.root.type == bfd_link_hash_undefweak)
+ ;
+ else if (info->shared && !info->no_undefined
+ && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
+ && h->elf.type != STT_PARISC_MILLI)
+ {
+ if (info->symbolic)
+ if (!((*info->callbacks->undefined_symbol)
+ (info, h->elf.root.root.string, input_bfd,
+ input_section, rel->r_offset, false)))
+ return false;
+ }
+ else
+ {
+ if (!((*info->callbacks->undefined_symbol)
+ (info, h->elf.root.root.string, input_bfd,
+ input_section, rel->r_offset, true)))
+ return false;
+ }
+ }
+
+ /* Do any required modifications to the relocation value, and
+ determine what types of dynamic info we need to output, if
+ any. */
+ plabel = 0;
+ switch (r_type)
+ {
+ case R_PARISC_DLTIND14F:
+ case R_PARISC_DLTIND14R:
+ case R_PARISC_DLTIND21L:
+ /* Relocation is to the entry for this symbol in the global
+ offset table. */
+ if (h != NULL)
+ {
+ boolean dyn;
+
+ off = h->elf.got.offset;
+ dyn = hplink->root.dynamic_sections_created;
+ if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, &h->elf))
+ {
+ /* This is actually a static link, or it is a
+ -Bsymbolic link and the symbol is defined
+ locally, or the symbol was forced to be local
+ because of a version file. We must initialize
+ this entry in the global offset table. Since the
+ offset must always be a multiple of 4, we use the
+ least significant bit to record whether we have
+ initialized it already.
+
+ When doing a dynamic link, we create a .rela.got
+ relocation entry to initialize the value. This
+ is done in the finish_dynamic_symbol routine. */
+ if ((off & 1) != 0)
+ off &= ~1;
+ else
+ {
+ bfd_put_32 (output_bfd, relocation,
+ hplink->sgot->contents + off);
+ h->elf.got.offset |= 1;
+ }
+ }
+ }
+ else
+ {
+ /* Local symbol case. */
+ if (local_got_offsets == NULL)
+ abort ();
+
+ off = local_got_offsets[r_symndx];
+
+ /* The offset must always be a multiple of 4. We use
+ the least significant bit to record whether we have
+ already generated the necessary reloc. */
+ if ((off & 1) != 0)
+ off &= ~1;
+ else
+ {
+ bfd_put_32 (output_bfd, relocation,
+ hplink->sgot->contents + off);
+
+ if (info->shared)
+ {
+ /* Output a dynamic relocation for this GOT
+ entry. In this case it is relative to the
+ base of the object because the symbol index
+ is zero. */
+ Elf_Internal_Rela outrel;
+ asection *srelgot = hplink->srelgot;
+
+ outrel.r_offset = (off
+ + hplink->sgot->output_offset
+ + hplink->sgot->output_section->vma);
+ outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
+ outrel.r_addend = relocation;
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel,
+ ((Elf32_External_Rela *)
+ srelgot->contents
+ + srelgot->reloc_count));
+ ++srelgot->reloc_count;
+ }
+
+ local_got_offsets[r_symndx] |= 1;
+ }
+ }
+
+ if (off >= (bfd_vma) -2)
+ abort ();
+
+ /* Add the base of the GOT to the relocation value. */
+ relocation = (off
+ + hplink->sgot->output_offset
+ + hplink->sgot->output_section->vma);
+ break;
+
+ case R_PARISC_SEGREL32:
+ /* If this is the first SEGREL relocation, then initialize
+ the segment base values. */
+ if (hplink->text_segment_base == (bfd_vma) -1)
+ bfd_map_over_sections (output_bfd,
+ hppa_record_segment_addr,
+ hplink);
+ break;
+
+ case R_PARISC_PLABEL14R:
+ case R_PARISC_PLABEL21L:
+ case R_PARISC_PLABEL32:
+ if (hplink->root.dynamic_sections_created)
+ {
+ /* If we have a global symbol with a PLT slot, then
+ redirect this relocation to it. */
+ if (h != NULL)
+ {
+ off = h->elf.plt.offset;
+ if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, &h->elf))
+ {
+ /* In a non-shared link, adjust_dynamic_symbols
+ isn't called for symbols forced local. We
+ need to write out the plt entry here. */
+ if ((off & 1) != 0)
+ off &= ~1;
+ else
+ {
+ bfd_put_32 (output_bfd,
+ relocation,
+ hplink->splt->contents + off);
+ bfd_put_32 (output_bfd,
+ elf_gp (hplink->splt->output_section->owner),
+ hplink->splt->contents + off + 4);
+ h->elf.plt.offset |= 1;
+ }
+ }
+ }
+ else
+ {
+ bfd_vma *local_plt_offsets;
+
+ if (local_got_offsets == NULL)
+ abort ();
+
+ local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
+ off = local_plt_offsets[r_symndx];
+
+ /* As for the local .got entry case, we use the last
+ bit to record whether we've already initialised
+ this local .plt entry. */
+ if ((off & 1) != 0)
+ off &= ~1;
+ else
+ {
+ bfd_put_32 (output_bfd,
+ relocation,
+ hplink->splt->contents + off);
+ bfd_put_32 (output_bfd,
+ elf_gp (hplink->splt->output_section->owner),
+ hplink->splt->contents + off + 4);
+
+ if (info->shared)
+ {
+ /* Output a dynamic IPLT relocation for this
+ PLT entry. */
+ Elf_Internal_Rela outrel;
+ asection *srelplt = hplink->srelplt;
+
+ outrel.r_offset = (off
+ + hplink->splt->output_offset
+ + hplink->splt->output_section->vma);
+ outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
+ outrel.r_addend = relocation;
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel,
+ ((Elf32_External_Rela *)
+ srelplt->contents
+ + srelplt->reloc_count));
+ ++srelplt->reloc_count;
+ }
+
+ local_plt_offsets[r_symndx] |= 1;
+ }
+ }
+
+ if (off >= (bfd_vma) -2)
+ abort ();
+
+ /* PLABELs contain function pointers. Relocation is to
+ the entry for the function in the .plt. The magic +2
+ offset signals to $$dyncall that the function pointer
+ is in the .plt and thus has a gp pointer too.
+ Exception: Undefined PLABELs should have a value of
+ zero. */
+ if (h == NULL
+ || (h->elf.root.type != bfd_link_hash_undefweak
+ && h->elf.root.type != bfd_link_hash_undefined))
+ {
+ relocation = (off
+ + hplink->splt->output_offset
+ + hplink->splt->output_section->vma
+ + 2);
+ }
+ plabel = 1;
+ }
+ /* Fall through and possibly emit a dynamic relocation. */
+
+ case R_PARISC_DIR17F:
+ case R_PARISC_DIR17R:
+ case R_PARISC_DIR14F:
+ case R_PARISC_DIR14R:
+ case R_PARISC_DIR21L:
+ case R_PARISC_DPREL14F:
+ case R_PARISC_DPREL14R:
+ case R_PARISC_DPREL21L:
+ case R_PARISC_DIR32:
+ /* The reloc types handled here and this conditional
+ expression must match the code in ..check_relocs and
+ ..discard_relocs. ie. We need exactly the same condition
+ as in ..check_relocs, with some extra conditions (dynindx
+ test in this case) to cater for relocs removed by
+ ..discard_relocs. If you squint, the non-shared test
+ here does indeed match the one in ..check_relocs, the
+ difference being that here we test DEF_DYNAMIC as well as
+ !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
+ which is why we can't use just that test here.
+ Conversely, DEF_DYNAMIC can't be used in check_relocs as
+ there all files have not been loaded. */
+ if ((info->shared
+ && (input_section->flags & SEC_ALLOC) != 0
+ && (IS_ABSOLUTE_RELOC (r_type)
+ || (h != NULL
+ && h->elf.dynindx != -1
+ && (!info->symbolic
+ || (h->elf.elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))))
+ || (!info->shared
+ && (input_section->flags & SEC_ALLOC) != 0
+ && h != NULL
+ && h->elf.dynindx != -1
+ && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
+ && (((h->elf.elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_DYNAMIC) != 0
+ && (h->elf.elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ || h->elf.root.type == bfd_link_hash_undefweak
+ || h->elf.root.type == bfd_link_hash_undefined)))
+ {
+ Elf_Internal_Rela outrel;
+ boolean skip;
+
+ /* When generating a shared object, these relocations
+ are copied into the output file to be resolved at run
+ time. */
+
+ if (sreloc == NULL)
+ {
+ const char *name;
+
+ name = (bfd_elf_string_from_elf_section
+ (input_bfd,
+ elf_elfheader (input_bfd)->e_shstrndx,
+ elf_section_data (input_section)->rel_hdr.sh_name));
+ if (name == NULL)
+ return false;
+ sreloc = bfd_get_section_by_name (dynobj, name);
+ if (sreloc == NULL)
+ abort ();
+ }
+
+ outrel.r_offset = rel->r_offset;
+ outrel.r_addend = rel->r_addend;
+ skip = false;
+ if (elf_section_data (input_section)->stab_info != NULL)
+ {
+ off = (_bfd_stab_section_offset
+ (output_bfd, &hplink->root.stab_info,
+ input_section,
+ &elf_section_data (input_section)->stab_info,
+ rel->r_offset));
+ if (off == (bfd_vma) -1)
+ skip = true;
+ outrel.r_offset = off;
+ }
-static void
-elf32_hppa_name_of_stub (caller, callee, location, destination, stub_name)
- unsigned int caller, callee;
- bfd_vma location, destination;
- char *stub_name;
-{
- arg_reloc_type arg_reloc_types[5];
+ outrel.r_offset += (input_section->output_offset
+ + input_section->output_section->vma);
- if (elf32_hppa_arg_reloc_needed (caller, callee, arg_reloc_types))
- {
- arg_reloc_location i;
- /* Fill in the basic template. */
- strcpy (stub_name, "__XX_XX_XX_XX_XX_stub_");
+ if (skip)
+ {
+ memset (&outrel, 0, sizeof (outrel));
+ }
+ else if (h != NULL
+ && h->elf.dynindx != -1
+ && (plabel
+ || !IS_ABSOLUTE_RELOC (r_type)
+ || !info->shared
+ || !info->symbolic
+ || (h->elf.elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))
+ {
+ outrel.r_info = ELF32_R_INFO (h->elf.dynindx, r_type);
+ }
+ else /* It's a local symbol, or one marked to become local. */
+ {
+ int indx = 0;
+
+ /* Add the absolute offset of the symbol. */
+ outrel.r_addend += relocation;
+
+ /* Global plabels need to be processed by the
+ dynamic linker so that functions have at most one
+ fptr. For this reason, we need to differentiate
+ between global and local plabels, which we do by
+ providing the function symbol for a global plabel
+ reloc, and no symbol for local plabels. */
+ if (! plabel
+ && sym_sec != NULL
+ && sym_sec->output_section != NULL
+ && ! bfd_is_abs_section (sym_sec))
+ {
+ indx = elf_section_data (sym_sec->output_section)->dynindx;
+ /* We are turning this relocation into one
+ against a section symbol, so subtract out the
+ output section's address but not the offset
+ of the input section in the output section. */
+ outrel.r_addend -= sym_sec->output_section->vma;
+ }
- /* Now fix the specifics. */
- for (i = ARG0; i <= RET; i++)
- switch (arg_reloc_types[i])
- {
- case NO:
- stub_name[3 * i + 2] = 'N';
- stub_name[3 * i + 3] = 'O';
- break;
- case GF:
- stub_name[3 * i + 2] = 'G';
- stub_name[3 * i + 3] = 'F';
- break;
- case FG:
- stub_name[3 * i + 2] = 'F';
- stub_name[3 * i + 3] = 'G';
- break;
- case GD:
- stub_name[3 * i + 2] = 'G';
- stub_name[3 * i + 3] = 'D';
- break;
- case DG:
- stub_name[3 * i + 2] = 'D';
- stub_name[3 * i + 3] = 'G';
- break;
- }
- }
- else
- strcpy (stub_name, "_____long_branch_stub_");
-}
+ outrel.r_info = ELF32_R_INFO (indx, r_type);
+ }
+#if 0
+ /* EH info can cause unaligned DIR32 relocs.
+ Tweak the reloc type for the dynamic linker. */
+ if (r_type == R_PARISC_DIR32 && (outrel.r_offset & 3) != 0)
+ outrel.r_info = ELF32_R_INFO (ELF32_R_SYM (outrel.r_info),
+ R_PARISC_DIR32U);
+#endif
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel,
+ ((Elf32_External_Rela *)
+ sreloc->contents
+ + sreloc->reloc_count));
+ ++sreloc->reloc_count;
+ }
+ break;
-/* Determine if an argument relocation stub is needed to perform a
- call assuming the argument relocation bits for caller and callee
- are in CALLER and CALLEE. Place the type of relocations (if any)
- into stub_types_p. */
+ default:
+ break;
+ }
-static boolean
-elf32_hppa_arg_reloc_needed (caller, callee, stub_types)
- unsigned int caller, callee;
- arg_reloc_type stub_types[5];
-{
- /* Special case for no relocations. */
- if (caller == 0 || callee == 0)
- return 0;
- else
- {
- arg_location caller_loc[5];
- arg_location callee_loc[5];
+ r = final_link_relocate (input_section, contents, rel, relocation,
+ hplink, sym_sec, h);
- /* Extract the location information for the argument and return
- value on both the caller and callee sides. */
- caller_loc[ARG0] = EXTRACT_ARBITS (caller, ARG0);
- callee_loc[ARG0] = EXTRACT_ARBITS (callee, ARG0);
- caller_loc[ARG1] = EXTRACT_ARBITS (caller, ARG1);
- callee_loc[ARG1] = EXTRACT_ARBITS (callee, ARG1);
- caller_loc[ARG2] = EXTRACT_ARBITS (caller, ARG2);
- callee_loc[ARG2] = EXTRACT_ARBITS (callee, ARG2);
- caller_loc[ARG3] = EXTRACT_ARBITS (caller, ARG3);
- callee_loc[ARG3] = EXTRACT_ARBITS (callee, ARG3);
- caller_loc[RET] = EXTRACT_ARBITS (caller, RET);
- callee_loc[RET] = EXTRACT_ARBITS (callee, RET);
+ if (r == bfd_reloc_ok)
+ continue;
- /* Check some special combinations. This is necessary to
- deal with double precision FP arguments. */
- if (caller_loc[ARG0] == AR_FU || caller_loc[ARG1] == AR_FU)
- {
- caller_loc[ARG0] = AR_FPDBL1;
- caller_loc[ARG1] = AR_NO;
- }
- if (caller_loc[ARG2] == AR_FU || caller_loc[ARG3] == AR_FU)
+ if (h != NULL)
+ sym_name = h->elf.root.root.string;
+ else
{
- caller_loc[ARG2] = AR_FPDBL2;
- caller_loc[ARG3] = AR_NO;
+ sym_name = bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ sym->st_name);
+ if (sym_name == NULL)
+ return false;
+ if (*sym_name == '\0')
+ sym_name = bfd_section_name (input_bfd, sym_sec);
}
- if (callee_loc[ARG0] == AR_FU || callee_loc[ARG1] == AR_FU)
+
+ howto = elf_hppa_howto_table + r_type;
+
+ if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported)
{
- callee_loc[ARG0] = AR_FPDBL1;
- callee_loc[ARG1] = AR_NO;
+ (*_bfd_error_handler)
+ (_("%s(%s+0x%lx): cannot handle %s for %s"),
+ bfd_get_filename (input_bfd),
+ input_section->name,
+ (long) rel->r_offset,
+ howto->name,
+ sym_name);
}
- if (callee_loc[ARG2] == AR_FU || callee_loc[ARG3] == AR_FU)
+ else
{
- callee_loc[ARG2] = AR_FPDBL2;
- callee_loc[ARG3] = AR_NO;
+ if (!((*info->callbacks->reloc_overflow)
+ (info, sym_name, howto->name, (bfd_vma) 0,
+ input_bfd, input_section, rel->r_offset)))
+ return false;
}
-
- /* Now look up any relocation needed for each argument and the
- return value. */
- stub_types[ARG0] = arg_mismatches[caller_loc[ARG0]][callee_loc[ARG0]];
- stub_types[ARG1] = arg_mismatches[caller_loc[ARG1]][callee_loc[ARG1]];
- stub_types[ARG2] = arg_mismatches[caller_loc[ARG2]][callee_loc[ARG2]];
- stub_types[ARG3] = arg_mismatches[caller_loc[ARG3]][callee_loc[ARG3]];
- stub_types[RET] = ret_mismatches[caller_loc[RET]][callee_loc[RET]];
-
- return (stub_types[ARG0] != NO
- || stub_types[ARG1] != NO
- || stub_types[ARG2] != NO
- || stub_types[ARG3] != NO
- || stub_types[RET] != NO);
}
+
+ return true;
}
-/* Compute the size of the stub needed to call from LOCATION to DESTINATION
- (a function named SYM_NAME), with argument relocation bits CALLER and
- CALLEE. Return zero if no stub is needed to perform such a call. */
+/* Comparison function for qsort to sort unwind section during a
+ final link. */
-static unsigned int
-elf32_hppa_size_of_stub (callee, caller, location, destination, sym_name)
- unsigned int callee, caller;
- bfd_vma location, destination;
- const char *sym_name;
+static int
+hppa_unwind_entry_compare (a, b)
+ const PTR a;
+ const PTR b;
{
- arg_reloc_type arg_reloc_types[5];
-
- /* Determine if a long branch or argument relocation stub is needed.
- If an argument relocation stub is needed, the relocation will be
- stored into arg_reloc_types. */
- if (!(((int)(location - destination) > 0x3ffff)
- || ((int)(location - destination) < (int)0xfffc0000)
- || elf32_hppa_arg_reloc_needed (caller, callee, arg_reloc_types)))
- return 0;
-
- /* Some kind of stub is needed. Determine how big it needs to be.
- First check for argument relocation stubs as they also handle
- long calls. Then check for long calls to millicode and finally
- the normal long calls. */
- if (arg_reloc_types[ARG0] != NO
- || arg_reloc_types[ARG1] != NO
- || arg_reloc_types[ARG2] != NO
- || arg_reloc_types[ARG3] != NO
- || arg_reloc_types[RET] != NO)
- {
- /* Some kind of argument relocation stub is needed. */
- unsigned int len = 16;
- arg_reloc_location i;
-
- /* Each GR or FG relocation takes 2 insns, each GD or DG
- relocation takes 3 insns. Plus 4 more insns for the
- RP adjustment, ldil & (be | ble) and copy. */
- for (i = ARG0; i <= RET; i++)
- switch (arg_reloc_types[i])
- {
- case GF:
- case FG:
- len += 8;
- break;
-
- case GD:
- case DG:
- len += 12;
- break;
-
- default:
- break;
- }
-
- /* Extra instructions are needed if we're relocating a return value. */
- if (arg_reloc_types[RET] != NO)
- len += 12;
-
- return len;
- }
- else if (!strncmp ("$$", sym_name, 2)
- && strcmp ("$$dyncall", sym_name))
- return 12;
- else
- return 16;
+ const bfd_byte *ap, *bp;
+ unsigned long av, bv;
+
+ ap = (const bfd_byte *) a;
+ av = (unsigned long) ap[0] << 24;
+ av |= (unsigned long) ap[1] << 16;
+ av |= (unsigned long) ap[2] << 8;
+ av |= (unsigned long) ap[3];
+
+ bp = (const bfd_byte *) b;
+ bv = (unsigned long) bp[0] << 24;
+ bv |= (unsigned long) bp[1] << 16;
+ bv |= (unsigned long) bp[2] << 8;
+ bv |= (unsigned long) bp[3];
+
+ return av < bv ? -1 : av > bv ? 1 : 0;
}
-/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
- IN_ARGS contains the stub BFD and link info pointers. */
+/* Finish up dynamic symbol handling. We set the contents of various
+ dynamic sections here. */
static boolean
-elf32_hppa_build_one_stub (gen_entry, in_args)
- struct bfd_hash_entry *gen_entry;
- PTR in_args;
+elf32_hppa_finish_dynamic_symbol (output_bfd, info, h, sym)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ struct elf_link_hash_entry *h;
+ Elf_Internal_Sym *sym;
{
- void **args = (void **)in_args;
- bfd *stub_bfd = (bfd *)args[0];
- struct bfd_link_info *info = (struct bfd_link_info *)args[1];
- struct elf32_hppa_stub_hash_entry *entry;
- struct elf32_hppa_stub_hash_table *stub_hash_table;
- bfd_byte *loc;
- symvalue sym_value;
- const char *sym_name;
-
- /* Initialize pointers to the stub hash table, the particular entry we
- are building a stub for, and where (in memory) we should place the stub
- instructions. */
- entry = (struct elf32_hppa_stub_hash_entry *)gen_entry;
- stub_hash_table = elf32_hppa_hash_table(info)->stub_hash_table;
- loc = stub_hash_table->location;
-
- /* Make a note of the offset within the stubs for this entry. */
- entry->offset = stub_hash_table->offset;
+ struct elf32_hppa_link_hash_table *hplink;
+ bfd *dynobj;
- /* The symbol's name starts at offset 22. */
- sym_name = entry->root.string + 22;
+ hplink = hppa_link_hash_table (info);
+ dynobj = hplink->root.dynobj;
- sym_value = (entry->target_value
- + entry->target_section->output_offset
- + entry->target_section->output_section->vma);
-
- if (strncmp ("_____long_branch_stub_", entry->root.string, 22))
+ if (h->plt.offset != (bfd_vma) -1)
{
- /* This must be an argument or return value relocation stub. */
- unsigned long insn;
- arg_reloc_location i;
- bfd_byte *begin_loc = loc;
+ bfd_vma value;
+
+ if (h->plt.offset & 1)
+ abort ();
- /* First the return pointer adjustment. Depending on exact calling
- sequence this instruction may be skipped. */
- bfd_put_32 (stub_bfd, LDO_M4_R31_R31, loc);
- loc += 4;
+ /* This symbol has an entry in the procedure linkage table. Set
+ it up.
- /* If we are relocating a return value, then we're going to have
- to return into the stub. So we have to save off the user's
- return pointer into the stack at RP'. */
- if (strncmp (entry->root.string + 14, "NO", 2))
+ The format of a plt entry is
+ <funcaddr>
+ <__gp>
+ */
+ value = 0;
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
{
- bfd_put_32 (stub_bfd, STW_R31_M8R30, loc);
- loc += 4;
+ value = h->root.u.def.value;
+ if (h->root.u.def.section->output_section != NULL)
+ value += (h->root.u.def.section->output_offset
+ + h->root.u.def.section->output_section->vma);
}
- /* Iterate over the argument relocations, emitting instructions
- to move them around as necessary. */
- for (i = ARG0; i <= ARG3; i++)
+ if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call)
{
- if (!strncmp (entry->root.string + 3 * i + 2, "GF", 2))
- {
- bfd_put_32 (stub_bfd, STW_ARG_M16R30 | ((26 - i) << 16), loc);
- bfd_put_32 (stub_bfd, FLDW_M16R30_FARG | (4 + i), loc + 4);
- loc += 8;
- }
- else if (!strncmp (entry->root.string + 3 * i + 2, "FG", 2))
- {
- bfd_put_32 (stub_bfd, FSTW_FARG_M16R30 | (4 + i), loc);
- bfd_put_32 (stub_bfd, LDW_M16R30_ARG | ((26 - i) << 16), loc + 4);
- loc += 8;
- }
- else if (!strncmp (entry->root.string + 3 * i + 2, "GD", 2))
+ Elf_Internal_Rela rel;
+
+ /* Create a dynamic IPLT relocation for this entry. */
+ rel.r_offset = (h->plt.offset
+ + hplink->splt->output_offset
+ + hplink->splt->output_section->vma);
+ if (! ((struct elf32_hppa_link_hash_entry *) h)->plt_abs
+ && h->dynindx != -1)
{
- bfd_put_32 (stub_bfd, STW_ARG_M12R30 | ((26 - i) << 16), loc);
- bfd_put_32 (stub_bfd, STW_ARG_M16R30 | ((25 - i) << 16), loc + 4);
- bfd_put_32 (stub_bfd, FLDD_M16R30_FARG | (5 + i), loc + 8);
- loc += 12;
+ /* To support lazy linking, the function pointer is
+ initialised to point to a special stub stored at the
+ end of the .plt. This is not done for plt entries
+ with a base-relative dynamic relocation. */
+ value = (hplink->splt->output_offset
+ + hplink->splt->output_section->vma
+ + hplink->splt->_raw_size
+ - sizeof (plt_stub)
+ + PLT_STUB_ENTRY);
+ rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT);
+ rel.r_addend = 0;
}
- else if (!strncmp (entry->root.string + 3 * i + 2, "DG", 2))
+ else
{
- bfd_put_32 (stub_bfd, FSTD_FARG_M16R30 | (5 + i), loc);
- bfd_put_32 (stub_bfd, LDW_M12R30_ARG | ((26 - i) << 16), loc + 4);
- bfd_put_32 (stub_bfd, LDW_M16R30_ARG | ((25 - i) << 16), loc + 8);
- loc += 12;
+ /* This symbol has been marked to become local, and is
+ used by a plabel so must be kept in the .plt. */
+ rel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
+ rel.r_addend = value;
}
- }
- /* Load the high bits of the target address into %r1. */
- insn = hppa_rebuild_insn (stub_bfd, LDIL_R1,
- hppa_field_adjust (sym_value, 0, e_lrsel), 21);
- bfd_put_32 (stub_bfd, insn, loc);
- loc += 4;
-
- /* If we are relocating a return value, then we're going to have
- to return into the stub, then perform the return value relocation. */
- if (strncmp (entry->root.string + 14, "NO", 2))
- {
- /* To return to the stub we "ble" to the target and copy the return
- pointer from %r31 into %r2. */
- insn = hppa_rebuild_insn (stub_bfd,
- BLE_SR4_R1,
- hppa_field_adjust (sym_value, 0,
- e_rrsel) >> 2,
- 17);
- bfd_put_32 (stub_bfd, insn, loc);
- bfd_put_32 (stub_bfd, COPY_R31_R2, loc + 4);
-
- /* Reload the return pointer for our caller from the stack. */
- bfd_put_32 (stub_bfd, LDW_M8R30_R31, loc + 8);
- loc += 12;
-
- /* Perform the return value relocation. */
- if (!strncmp (entry->root.string + 14, "GF", 2))
- {
- bfd_put_32 (stub_bfd, STW_ARG_M16R30 | (28 << 16), loc);
- bfd_put_32 (stub_bfd, FLDW_M16R30_FARG | 4, loc + 4);
- loc += 8;
- }
- else if (!strncmp (entry->root.string + 14, "FG", 2))
- {
- bfd_put_32 (stub_bfd, FSTW_FARG_M16R30 | 4, loc);
- bfd_put_32 (stub_bfd, LDW_M16R30_ARG | (28 << 16), loc + 4);
- loc += 8;
- }
- else if (!strncmp (entry->root.string + 2, "GD", 2))
- {
- bfd_put_32 (stub_bfd, STW_ARG_M12R30 | (28 << 16), loc);
- bfd_put_32 (stub_bfd, STW_ARG_M16R30 | (29 << 16), loc + 4);
- bfd_put_32 (stub_bfd, FLDD_M16R30_FARG | 4, loc + 8);
- loc += 12;
- }
- else if (!strncmp (entry->root.string + 2, "DG", 2))
- {
- bfd_put_32 (stub_bfd, FSTD_FARG_M16R30 | 4, loc);
- bfd_put_32 (stub_bfd, LDW_M12R30_ARG | (28 << 16), loc + 4);
- bfd_put_32 (stub_bfd, LDW_M16R30_ARG | (29 << 16), loc + 8);
- loc += 12;
- }
- /* Branch back to the user's code now. */
- bfd_put_32 (stub_bfd, BV_N_0_R31, loc);
- loc += 4;
+ bfd_elf32_swap_reloca_out (hplink->splt->output_section->owner,
+ &rel,
+ ((Elf32_External_Rela *)
+ hplink->srelplt->contents
+ + hplink->srelplt->reloc_count));
+ hplink->srelplt->reloc_count++;
}
- else
+
+ bfd_put_32 (hplink->splt->owner,
+ value,
+ hplink->splt->contents + h->plt.offset);
+ bfd_put_32 (hplink->splt->owner,
+ elf_gp (hplink->splt->output_section->owner),
+ hplink->splt->contents + h->plt.offset + 4);
+ if (PLABEL_PLT_ENTRY_SIZE != PLT_ENTRY_SIZE
+ && ((struct elf32_hppa_link_hash_entry *) h)->plabel
+ && h->dynindx != -1)
{
- /* No return value relocation, so we can simply "be" to the
- target and copy out return pointer into %r2. */
- insn = hppa_rebuild_insn (stub_bfd, BE_SR4_R1,
- hppa_field_adjust (sym_value, 0,
- e_rrsel) >> 2, 17);
- bfd_put_32 (stub_bfd, insn, loc);
- bfd_put_32 (stub_bfd, COPY_R31_R2, loc + 4);
- loc += 8;
+ memset (hplink->splt->contents + h->plt.offset + 8,
+ 0, PLABEL_PLT_ENTRY_SIZE - PLT_ENTRY_SIZE);
}
- /* Update the location and offsets. */
- stub_hash_table->location += (loc - begin_loc);
- stub_hash_table->offset += (loc - begin_loc);
+ if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ {
+ /* Mark the symbol as undefined, rather than as defined in
+ the .plt section. Leave the value alone. */
+ sym->st_shndx = SHN_UNDEF;
+ }
}
- else
- {
- /* Create one of two variant long branch stubs. One for $$dyncall and
- normal calls, the other for calls to millicode. */
- unsigned long insn;
- int millicode_call = 0;
- if (!strncmp ("$$", sym_name, 2) && strcmp ("$$dyncall", sym_name))
- millicode_call = 1;
-
- /* First the return pointer adjustment. Depending on exact calling
- sequence this instruction may be skipped. */
- bfd_put_32 (stub_bfd, LDO_M4_R31_R31, loc);
-
- /* The next two instructions are the long branch itself. A long branch
- is formed with "ldil" loading the upper bits of the target address
- into a register, then branching with "be" which adds in the lower bits.
- Long branches to millicode nullify the delay slot of the "be". */
- insn = hppa_rebuild_insn (stub_bfd, LDIL_R1,
- hppa_field_adjust (sym_value, 0, e_lrsel), 21);
- bfd_put_32 (stub_bfd, insn, loc + 4);
- insn = hppa_rebuild_insn (stub_bfd, BE_SR4_R1 | (millicode_call ? 2 : 0),
- hppa_field_adjust (sym_value, 0, e_rrsel) >> 2,
- 17);
- bfd_put_32 (stub_bfd, insn, loc + 8);
-
- if (!millicode_call)
+ if (h->got.offset != (bfd_vma) -1)
+ {
+ Elf_Internal_Rela rel;
+
+ /* This symbol has an entry in the global offset table. Set it
+ up. */
+
+ rel.r_offset = ((h->got.offset &~ (bfd_vma) 1)
+ + hplink->sgot->output_offset
+ + hplink->sgot->output_section->vma);
+
+ /* If this is a -Bsymbolic link and the symbol is defined
+ locally or was forced to be local because of a version file,
+ we just want to emit a RELATIVE reloc. The entry in the
+ global offset table will already have been initialized in the
+ relocate_section function. */
+ if (info->shared
+ && (info->symbolic || h->dynindx == -1)
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
{
- /* The sequence to call this stub places the return pointer into %r31,
- the final target expects the return pointer in %r2, so copy the
- return pointer into the proper register. */
- bfd_put_32 (stub_bfd, COPY_R31_R2, loc + 12);
-
- /* Update the location and offsets. */
- stub_hash_table->location += 16;
- stub_hash_table->offset += 16;
+ rel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
+ rel.r_addend = (h->root.u.def.value
+ + h->root.u.def.section->output_offset
+ + h->root.u.def.section->output_section->vma);
}
else
{
- /* Update the location and offsets. */
- stub_hash_table->location += 12;
- stub_hash_table->offset += 12;
+ if ((h->got.offset & 1) != 0)
+ abort ();
+ bfd_put_32 (output_bfd, (bfd_vma) 0,
+ hplink->sgot->contents + h->got.offset);
+ rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32);
+ rel.r_addend = 0;
}
+ bfd_elf32_swap_reloca_out (output_bfd, &rel,
+ ((Elf32_External_Rela *)
+ hplink->srelgot->contents
+ + hplink->srelgot->reloc_count));
+ ++hplink->srelgot->reloc_count;
}
- return true;
-}
-/* External entry points for sizing and building linker stubs. */
+ if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
+ {
+ asection *s;
+ Elf_Internal_Rela rel;
-/* Build all the stubs associated with the current output file. The
- stubs are kept in a hash table attached to the main linker hash
- table. This is called via hppaelf_finish in the linker. */
+ /* This symbol needs a copy reloc. Set it up. */
-boolean
-elf32_hppa_build_stubs (stub_bfd, info)
- bfd *stub_bfd;
- struct bfd_link_info *info;
-{
- /* The stub BFD only has one section. */
- asection *stub_sec = stub_bfd->sections;
- struct elf32_hppa_stub_hash_table *table;
- unsigned int size;
- void *args[2];
-
- /* So we can pass both the BFD for the stubs and the link info
- structure to the routine which actually builds stubs. */
- args[0] = stub_bfd;
- args[1] = info;
-
- /* Allocate memory to hold the linker stubs. */
- size = bfd_section_size (stub_bfd, stub_sec);
- stub_sec->contents = (unsigned char *) bfd_zalloc (stub_bfd, size);
- if (stub_sec->contents == NULL)
- return false;
- table = elf32_hppa_hash_table(info)->stub_hash_table;
- table->location = stub_sec->contents;
+ if (! (h->dynindx != -1
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)))
+ abort ();
- /* Build the stubs as directed by the stub hash table. */
- elf32_hppa_stub_hash_traverse (table, elf32_hppa_build_one_stub, args);
+ s = hplink->srelbss;
+
+ rel.r_offset = (h->root.u.def.value
+ + h->root.u.def.section->output_offset
+ + h->root.u.def.section->output_section->vma);
+ rel.r_addend = 0;
+ rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_COPY);
+ bfd_elf32_swap_reloca_out (output_bfd, &rel,
+ ((Elf32_External_Rela *) s->contents
+ + s->reloc_count));
+ ++s->reloc_count;
+ }
+
+ /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
+ if (h->root.root.string[0] == '_'
+ && (strcmp (h->root.root.string, "_DYNAMIC") == 0
+ || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0))
+ {
+ sym->st_shndx = SHN_ABS;
+ }
return true;
}
-/* Determine and set the size of the stub section for a final link.
-
- The basic idea here is to examine all the relocations looking for
- PC-relative calls to a target that is unreachable with a "bl"
- instruction or calls where the caller and callee disagree on the
- location of their arguments or return value. */
+/* Finish up the dynamic sections. */
-boolean
-elf32_hppa_size_stubs (stub_bfd, output_bfd, link_info)
- bfd *stub_bfd;
+static boolean
+elf32_hppa_finish_dynamic_sections (output_bfd, info)
bfd *output_bfd;
- struct bfd_link_info *link_info;
+ struct bfd_link_info *info;
{
- bfd *input_bfd;
- asection *section, *stub_sec = 0;
- Elf_Internal_Shdr *symtab_hdr;
- Elf_Internal_Sym *local_syms, *isym, **all_local_syms;
- Elf32_External_Sym *ext_syms, *esym;
- unsigned int i, index, bfd_count = 0;
- struct elf32_hppa_stub_hash_table *stub_hash_table = 0;
- struct elf32_hppa_args_hash_table *args_hash_table = 0;
-
- /* Create and initialize the stub hash table. */
- stub_hash_table = ((struct elf32_hppa_stub_hash_table *)
- bfd_malloc (sizeof (struct elf32_hppa_stub_hash_table)));
- if (!stub_hash_table)
- goto error_return;
-
- if (!elf32_hppa_stub_hash_table_init (stub_hash_table, stub_bfd,
- elf32_hppa_stub_hash_newfunc))
- goto error_return;
-
- /* Likewise for the argument location hash table. */
- args_hash_table = ((struct elf32_hppa_args_hash_table *)
- bfd_malloc (sizeof (struct elf32_hppa_args_hash_table)));
- if (!args_hash_table)
- goto error_return;
-
- if (!elf32_hppa_args_hash_table_init (args_hash_table,
- elf32_hppa_args_hash_newfunc))
- goto error_return;
-
- /* Attach the hash tables to the main hash table. */
- elf32_hppa_hash_table(link_info)->stub_hash_table = stub_hash_table;
- elf32_hppa_hash_table(link_info)->args_hash_table = args_hash_table;
-
- /* Count the number of input BFDs. */
- for (input_bfd = link_info->input_bfds;
- input_bfd != NULL;
- input_bfd = input_bfd->link_next)
- bfd_count++;
+ bfd *dynobj;
+ struct elf32_hppa_link_hash_table *hplink;
+ asection *sdyn;
- /* We want to read in symbol extension records only once. To do this
- we need to read in the local symbols in parallel and save them for
- later use; so hold pointers to the local symbols in an array. */
- all_local_syms
- = (Elf_Internal_Sym **) bfd_malloc (sizeof (Elf_Internal_Sym *)
- * bfd_count);
- if (all_local_syms == NULL)
- goto error_return;
- memset (all_local_syms, 0, sizeof (Elf_Internal_Sym *) * bfd_count);
+ hplink = hppa_link_hash_table (info);
+ dynobj = hplink->root.dynobj;
- /* Walk over all the input BFDs adding entries to the args hash table
- for all the external functions. */
- for (input_bfd = link_info->input_bfds, index = 0;
- input_bfd != NULL;
- input_bfd = input_bfd->link_next, index++)
+ sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
+
+ if (hplink->root.dynamic_sections_created)
{
- /* We'll need the symbol table in a second. */
- symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
- if (symtab_hdr->sh_info == 0)
- continue;
+ Elf32_External_Dyn *dyncon, *dynconend;
- /* We need an array of the local symbols attached to the input bfd.
- Unfortunately, we're going to have to read & swap them in. */
- local_syms
- = (Elf_Internal_Sym *) bfd_malloc (symtab_hdr->sh_info
- * sizeof (Elf_Internal_Sym));
- if (local_syms == NULL)
- {
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
- goto error_return;
- }
- all_local_syms[index] = local_syms;
+ if (sdyn == NULL)
+ abort ();
- ext_syms
- = (Elf32_External_Sym *) bfd_malloc (symtab_hdr->sh_info
- * sizeof (Elf32_External_Sym));
- if (ext_syms == NULL)
+ dyncon = (Elf32_External_Dyn *) sdyn->contents;
+ dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
+ for (; dyncon < dynconend; dyncon++)
{
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
- goto error_return;
- }
+ Elf_Internal_Dyn dyn;
+ asection *s;
- if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
- || bfd_read (ext_syms, 1,
- (symtab_hdr->sh_info
- * sizeof (Elf32_External_Sym)), input_bfd)
- != (symtab_hdr->sh_info * sizeof (Elf32_External_Sym)))
- {
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
- free (ext_syms);
- goto error_return;
- }
+ bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
- /* Swap the local symbols in. */
- isym = local_syms;
- esym = ext_syms;
- for (i = 0; i < symtab_hdr->sh_info; i++, esym++, isym++)
- bfd_elf32_swap_symbol_in (input_bfd, esym, isym);
+ switch (dyn.d_tag)
+ {
+ default:
+ break;
- /* Now we can free the external symbols. */
- free (ext_syms);
+ case DT_PLTGOT:
+ /* Use PLTGOT to set the GOT register. */
+ dyn.d_un.d_ptr = elf_gp (output_bfd);
+ bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ break;
- if (elf32_hppa_read_symext_info (input_bfd, symtab_hdr, args_hash_table,
- local_syms) == false)
- {
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
- goto error_return;
+ case DT_JMPREL:
+ s = hplink->srelplt;
+ dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
+ bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ break;
+
+ case DT_PLTRELSZ:
+ s = hplink->srelplt;
+ if (s->_cooked_size != 0)
+ dyn.d_un.d_val = s->_cooked_size;
+ else
+ dyn.d_un.d_val = s->_raw_size;
+ bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ break;
+ }
}
}
- /* Magic as we know the stub bfd only has one section. */
- stub_sec = stub_bfd->sections;
-
- /* If generating a relocateable output file, then we don't
- have to examine the relocs. */
- if (link_info->relocateable)
+ if (hplink->sgot != NULL && hplink->sgot->_raw_size != 0)
{
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
- return true;
+ /* Fill in the first entry in the global offset table.
+ We use it to point to our dynamic section, if we have one. */
+ bfd_put_32 (output_bfd,
+ (sdyn != NULL
+ ? sdyn->output_section->vma + sdyn->output_offset
+ : (bfd_vma) 0),
+ hplink->sgot->contents);
+
+ /* The second entry is reserved for use by the dynamic linker. */
+ memset (hplink->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
+
+ /* Set .got entry size. */
+ elf_section_data (hplink->sgot->output_section)
+ ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
}
- /* Now that we have argument location information for all the global
- functions we can start looking for stubs. */
- for (input_bfd = link_info->input_bfds, index = 0;
- input_bfd != NULL;
- input_bfd = input_bfd->link_next, index++)
+ if (hplink->splt != NULL && hplink->splt->_raw_size != 0)
{
- /* We'll need the symbol table in a second. */
- symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
- if (symtab_hdr->sh_info == 0)
- continue;
-
- local_syms = all_local_syms[index];
+ /* Set plt entry size. */
+ elf_section_data (hplink->splt->output_section)
+ ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
- /* Walk over each section attached to the input bfd. */
- for (section = input_bfd->sections;
- section != NULL;
- section = section->next)
+ if (hplink->need_plt_stub)
{
- Elf_Internal_Shdr *input_rel_hdr;
- Elf32_External_Rela *external_relocs, *erelaend, *erela;
- Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
-
- /* If there aren't any relocs, then there's nothing to do. */
- if ((section->flags & SEC_RELOC) == 0
- || section->reloc_count == 0)
- continue;
-
- /* Allocate space for the external relocations. */
- external_relocs
- = ((Elf32_External_Rela *)
- bfd_malloc (section->reloc_count
- * sizeof (Elf32_External_Rela)));
- if (external_relocs == NULL)
- {
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
- goto error_return;
- }
-
- /* Likewise for the internal relocations. */
- internal_relocs
- = ((Elf_Internal_Rela *)
- bfd_malloc (section->reloc_count * sizeof (Elf_Internal_Rela)));
- if (internal_relocs == NULL)
- {
- free (external_relocs);
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
- goto error_return;
- }
-
- /* Read in the external relocs. */
- input_rel_hdr = &elf_section_data (section)->rel_hdr;
- if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0
- || bfd_read (external_relocs, 1, input_rel_hdr->sh_size,
- input_bfd) != input_rel_hdr->sh_size)
+ /* Set up the .plt stub. */
+ memcpy (hplink->splt->contents
+ + hplink->splt->_raw_size - sizeof (plt_stub),
+ plt_stub, sizeof (plt_stub));
+
+ if ((hplink->splt->output_offset
+ + hplink->splt->output_section->vma
+ + hplink->splt->_raw_size)
+ != (hplink->sgot->output_offset
+ + hplink->sgot->output_section->vma))
{
- free (external_relocs);
- free (internal_relocs);
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
- goto error_return;
+ (*_bfd_error_handler)
+ (_(".got section not immediately after .plt section"));
+ return false;
}
+ }
+ }
- /* Swap in the relocs. */
- erela = external_relocs;
- erelaend = erela + section->reloc_count;
- irela = internal_relocs;
- for (; erela < erelaend; erela++, irela++)
- bfd_elf32_swap_reloca_in (input_bfd, erela, irela);
-
- /* We're done with the external relocs, free them. */
- free (external_relocs);
-
- /* Now examine each relocation. */
- irela = internal_relocs;
- irelaend = irela + section->reloc_count;
- for (; irela < irelaend; irela++)
- {
- long r_type, callee_args, caller_args, size_of_stub;
- unsigned long r_index;
- struct elf_link_hash_entry *hash;
- struct elf32_hppa_stub_hash_entry *stub_hash;
- struct elf32_hppa_args_hash_entry *args_hash;
- Elf_Internal_Sym *sym;
- asection *sym_sec;
- const char *sym_name;
- symvalue sym_value;
- bfd_vma location, destination;
- char *new_name = NULL;
-
- r_type = ELF32_R_TYPE (irela->r_info);
- r_index = ELF32_R_SYM (irela->r_info);
-
- if (r_type < 0 || r_type >= (int) R_PARISC_UNIMPLEMENTED)
- {
- bfd_set_error (bfd_error_bad_value);
- free (internal_relocs);
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
- goto error_return;
- }
-
- /* Only look for stubs on call instructions or plabel
- references. */
- if (r_type != R_PARISC_PCREL17F
- && r_type != R_PARISC_PLABEL32
- && r_type != R_PARISC_PLABEL21L
- && r_type != R_PARISC_PLABEL14R)
- continue;
-
- /* Now determine the call target, its name, value, section
- and argument relocation bits. */
- hash = NULL;
- sym = NULL;
- sym_sec = NULL;
- if (r_index < symtab_hdr->sh_info)
- {
- /* It's a local symbol. */
- Elf_Internal_Shdr *hdr;
-
- sym = local_syms + r_index;
- hdr = elf_elfsections (input_bfd)[sym->st_shndx];
- sym_sec = hdr->bfd_section;
- sym_name = bfd_elf_string_from_elf_section (input_bfd,
- symtab_hdr->sh_link,
- sym->st_name);
- sym_value = (ELF_ST_TYPE (sym->st_info) == STT_SECTION
- ? 0 : sym->st_value);
- destination = (sym_value
- + sym_sec->output_offset
- + sym_sec->output_section->vma);
-
- /* Tack on an ID so we can uniquely identify this local
- symbol in the stub or arg info hash tables. */
- new_name = bfd_malloc (strlen (sym_name) + 10);
- if (new_name == 0)
- {
- free (internal_relocs);
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
- goto error_return;
- }
- sprintf (new_name, "%s_%08x", sym_name, (int)sym_sec);
- sym_name = new_name;
- }
- else
- {
- /* It's an external symbol. */
- long index;
-
- index = r_index - symtab_hdr->sh_info;
- hash = elf_sym_hashes (input_bfd)[index];
- if (hash->root.type == bfd_link_hash_defined
- || hash->root.type == bfd_link_hash_defweak)
- {
- sym_sec = hash->root.u.def.section;
- sym_name = hash->root.root.string;
- sym_value = hash->root.u.def.value;
- destination = (sym_value
- + sym_sec->output_offset
- + sym_sec->output_section->vma);
- }
- else
- {
- bfd_set_error (bfd_error_bad_value);
- free (internal_relocs);
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
- goto error_return;
- }
- }
-
- args_hash = elf32_hppa_args_hash_lookup (args_hash_table,
- sym_name, false, false);
-
- /* Get both caller and callee argument information. */
- if (args_hash == NULL)
- callee_args = 0;
- else
- callee_args = args_hash->arg_bits;
-
- /* For calls get the caller's bits from the addend of
- the call relocation. For PLABELS the caller's bits
- are assumed to have all args & return values in general
- registers (0x155). */
- if (r_type == R_PARISC_PCREL17F)
- caller_args = HPPA_R_ARG_RELOC (irela->r_addend);
- else
- caller_args = 0x155;
-
- /* Now determine where the call point is. */
- location = (section->output_offset
- + section->output_section->vma
- + irela->r_offset);
-
- /* We only care about the destination for PCREL function
- calls (eg. we don't care for PLABELS). */
- if (r_type != R_PARISC_PCREL17F)
- location = destination;
-
- /* Determine what (if any) linker stub is needed and its
- size (in bytes). */
- size_of_stub = elf32_hppa_size_of_stub (callee_args,
- caller_args,
- location,
- destination,
- sym_name);
- if (size_of_stub != 0)
- {
- char *stub_name;
- unsigned int len;
+ return true;
+}
- /* Get the name of this stub. */
- len = strlen (sym_name);
- len += 23;
+/* Tweak the OSABI field of the elf header. */
- stub_name = bfd_malloc (len);
- if (!stub_name)
- {
- /* Because sym_name was mallocd above for local
- symbols. */
- if (r_index < symtab_hdr->sh_info)
- free (new_name);
-
- free (internal_relocs);
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
- goto error_return;
- }
- elf32_hppa_name_of_stub (caller_args, callee_args,
- location, destination, stub_name);
- strcat (stub_name + 22, sym_name);
-
- /* Because sym_name was malloced above for local symbols. */
- if (r_index < symtab_hdr->sh_info)
- free (new_name);
-
- stub_hash
- = elf32_hppa_stub_hash_lookup (stub_hash_table, stub_name,
- false, false);
- if (stub_hash != NULL)
- {
- /* The proper stub has already been created, nothing
- else to do. */
- free (stub_name);
- }
- else
- {
- bfd_set_section_size (stub_bfd, stub_sec,
- (bfd_section_size (stub_bfd,
- stub_sec)
- + size_of_stub));
-
- /* Enter this entry into the linker stub hash table. */
- stub_hash
- = elf32_hppa_stub_hash_lookup (stub_hash_table,
- stub_name, true, true);
- if (stub_hash == NULL)
- {
- free (stub_name);
- free (internal_relocs);
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
- goto error_return;
- }
+static void
+elf32_hppa_post_process_headers (abfd, link_info)
+ bfd *abfd;
+ struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
+{
+ Elf_Internal_Ehdr * i_ehdrp;
- /* We'll need these to determine the address that the
- stub will branch to. */
- stub_hash->target_value = sym_value;
- stub_hash->target_section = sym_sec;
- }
- free (stub_name);
- }
- }
- /* We're done with the internal relocs, free them. */
- free (internal_relocs);
- }
- }
- /* We're done with the local symbols, free them. */
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
- return true;
+ i_ehdrp = elf_elfheader (abfd);
-error_return:
- /* Return gracefully, avoiding dangling references to the hash tables. */
- if (stub_hash_table)
+ if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
{
- elf32_hppa_hash_table(link_info)->stub_hash_table = NULL;
- free (stub_hash_table);
+ i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX;
}
- if (args_hash_table)
+ else
{
- elf32_hppa_hash_table(link_info)->args_hash_table = NULL;
- free (args_hash_table);
+ i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX;
}
- /* Set the size of the stub section to zero since we're never going
- to create them. Avoids losing when we try to get its contents
- too. */
- bfd_set_section_size (stub_bfd, stub_sec, 0);
- return false;
+}
+
+/* Called when writing out an object file to decide the type of a
+ symbol. */
+static int
+elf32_hppa_elf_get_symbol_type (elf_sym, type)
+ Elf_Internal_Sym *elf_sym;
+ int type;
+{
+ if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
+ return STT_PARISC_MILLI;
+ else
+ return type;
}
/* Misc BFD support code. */
-#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
-#define bfd_elf32_bfd_is_local_label_name hppa_elf_is_local_label_name
-
-/* Symbol extension stuff. */
-#define bfd_elf32_set_section_contents elf32_hppa_set_section_contents
-#define elf_info_to_howto elf32_hppa_info_to_howto
-#define elf_backend_symbol_table_processing \
- elf32_hppa_backend_symbol_table_processing
-#define elf_backend_begin_write_processing \
- elf32_hppa_backend_begin_write_processing
-#define elf_backend_final_write_processing \
- elf32_hppa_backend_final_write_processing
+#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
+#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
+#define elf_info_to_howto elf_hppa_info_to_howto
+#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
/* Stuff for the BFD linker. */
-#define elf_backend_relocate_section elf32_hppa_relocate_section
-#define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook
-#define elf_backend_link_output_symbol_hook \
- elf32_hppa_link_output_symbol_hook
-#define bfd_elf32_bfd_link_hash_table_create \
- elf32_hppa_link_hash_table_create
+#define bfd_elf32_bfd_final_link elf32_hppa_final_link
+#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
+#define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook
+#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
+#define elf_backend_check_relocs elf32_hppa_check_relocs
+#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
+#define elf_backend_fake_sections elf_hppa_fake_sections
+#define elf_backend_relocate_section elf32_hppa_relocate_section
+#define elf_backend_hide_symbol elf32_hppa_hide_symbol
+#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
+#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
+#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
+#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
+#define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
+#define elf_backend_object_p elf32_hppa_object_p
+#define elf_backend_final_write_processing elf_hppa_final_write_processing
+#define elf_backend_post_process_headers elf32_hppa_post_process_headers
+#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
+
+#define elf_backend_can_gc_sections 1
+#define elf_backend_plt_alignment 2
+#define elf_backend_want_got_plt 0
+#define elf_backend_plt_readonly 0
+#define elf_backend_want_plt_sym 0
+#define elf_backend_got_header_size 8
#define TARGET_BIG_SYM bfd_elf32_hppa_vec
#define TARGET_BIG_NAME "elf32-hppa"
#define ELF_MAXPAGESIZE 0x1000
#include "elf32-target.h"
+
+#undef TARGET_BIG_SYM
+#define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec
+#undef TARGET_BIG_NAME
+#define TARGET_BIG_NAME "elf32-hppa-linux"
+
+#define INCLUDED_TARGET_FILE 1
+#include "elf32-target.h"
projects / deliverable / binutils-gdb.git / blobdiff