/* BFD back-end for HP PA-RISC ELF files.
- Copyright (C) 1990-1991 Free Software Foundation, Inc.
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001,
+ 2002 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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
-#include "obstack.h"
-#include "libelf.h"
+#include "elf-bfd.h"
+#include "elf/hppa.h"
+#include "libhppa.h"
+#include "elf32-hppa.h"
+#define ARCH_SIZE 32
+#include "elf32-hppa.h"
+#include "elf-hppa.h"
+
+/* In order to gain some understanding of code in this file without
+ knowing all the intricate details of the linker, note the
+ following:
+
+ 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 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
+ attach other hash tables and static information.
+
+ The second is the stub hash table which is derived from the
+ base BFD hash table. The stub hash table holds the information
+ necessary to build the linker stubs during a link.
+
+ 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 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"
+
+/* We don't need to copy certain 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. */
+#ifndef RELATIVE_DYNRELOCS
+#define RELATIVE_DYNRELOCS 0
+#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
+};
+
+struct elf32_hppa_stub_hash_entry {
+
+ /* Base hash table entry structure. */
+ struct bfd_hash_entry root;
+
+ /* The stub section. */
+ asection *stub_sec;
+
+ /* 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. */
+ bfd_vma target_value;
+ asection *target_section;
+
+ enum elf32_hppa_stub_type stub_type;
+
+ /* The symbol table entry, if any, that this was derived from. */
+ struct elf32_hppa_link_hash_entry *h;
+
+ /* 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;
+};
+
+struct elf32_hppa_link_hash_entry {
+
+ struct elf_link_hash_entry elf;
+
+ /* A pointer to the most recently used stub hash entry against this
+ symbol. */
+ struct elf32_hppa_stub_hash_entry *stub_cache;
+
+ /* Used to count relocations for delayed sizing of relocation
+ sections. */
+ struct elf32_hppa_dyn_reloc_entry {
+
+ /* Next relocation in the chain. */
+ struct elf32_hppa_dyn_reloc_entry *next;
+
+ /* The input section of the reloc. */
+ asection *sec;
+
+ /* Number of relocs copied in this section. */
+ bfd_size_type count;
+
+#if RELATIVE_DYNRELOCS
+ /* Number of relative relocs copied for the input section. */
+ bfd_size_type relative_count;
+#endif
+ } *dyn_relocs;
+
+ /* Set if the only reason we need a .plt entry is for a non-PIC to
+ PIC function call. */
+ unsigned int pic_call:1;
+
+ /* Set if this symbol is used by a plabel reloc. */
+ unsigned int plabel:1;
+};
+
+struct elf32_hppa_link_hash_table {
+
+ /* The main hash table. */
+ struct elf_link_hash_table elf;
+
+ /* The stub hash table. */
+ struct bfd_hash_table stub_hash_table;
+
+ /* Linker stub bfd. */
+ bfd *stub_bfd;
+
+ /* 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;
+ } *stub_group;
+
+ /* Assorted information used by elf32_hppa_size_stubs. */
+ unsigned int bfd_count;
+ int top_index;
+ asection **input_list;
+ Elf_Internal_Sym **all_local_syms;
+
+ /* 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 various size branches are detected. Used to
+ select suitable defaults for the stub group size. */
+ unsigned int has_12bit_branch:1;
+ unsigned int has_17bit_branch:1;
+ unsigned int has_22bit_branch:1;
+
+ /* Set if we need a .plt stub to support lazy dynamic linking. */
+ unsigned int need_plt_stub:1;
+
+ /* Small local sym to section mapping cache. */
+ struct sym_sec_cache sym_sec;
+};
+
+/* Various hash macros and functions. */
+#define hppa_link_hash_table(p) \
+ ((struct elf32_hppa_link_hash_table *) ((p)->hash))
+
+#define hppa_stub_hash_lookup(table, string, create, copy) \
+ ((struct elf32_hppa_stub_hash_entry *) \
+ bfd_hash_lookup ((table), (string), (create), (copy)))
+
+static struct bfd_hash_entry *stub_hash_newfunc
+ PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
+
+static struct bfd_hash_entry *hppa_link_hash_newfunc
+ PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
+
+static struct bfd_link_hash_table *elf32_hppa_link_hash_table_create
+ PARAMS ((bfd *));
+
+static void elf32_hppa_link_hash_table_free
+ PARAMS ((struct bfd_link_hash_table *));
+
+/* 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 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 struct elf32_hppa_stub_hash_entry *hppa_add_stub
+ PARAMS ((const char *, asection *, struct elf32_hppa_link_hash_table *));
+
+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 boolean hppa_build_one_stub
+ PARAMS ((struct bfd_hash_entry *, PTR));
+
+static boolean hppa_size_one_stub
+ PARAMS ((struct bfd_hash_entry *, PTR));
+
+/* 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 boolean elf32_hppa_create_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+
+static void elf32_hppa_copy_indirect_symbol
+ PARAMS ((struct elf_link_hash_entry *, struct elf_link_hash_entry *));
+
+static boolean elf32_hppa_check_relocs
+ PARAMS ((bfd *, struct bfd_link_info *,
+ asection *, const Elf_Internal_Rela *));
+
+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_gc_sweep_hook
+ PARAMS ((bfd *, struct bfd_link_info *,
+ asection *, const Elf_Internal_Rela *));
+
+static void elf32_hppa_hide_symbol
+ PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, boolean));
+
+static boolean elf32_hppa_adjust_dynamic_symbol
+ PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
+
+static boolean mark_PIC_calls
+ PARAMS ((struct elf_link_hash_entry *, PTR));
+
+static boolean allocate_plt_static
+ PARAMS ((struct elf_link_hash_entry *, PTR));
+
+static boolean allocate_dynrelocs
+ PARAMS ((struct elf_link_hash_entry *, PTR));
+
+static boolean readonly_dynrelocs
+ PARAMS ((struct elf_link_hash_entry *, PTR));
+
+static boolean clobber_millicode_symbols
+ PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *));
+
+static boolean elf32_hppa_size_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+
+static void group_sections
+ PARAMS ((struct elf32_hppa_link_hash_table *, bfd_size_type, boolean));
+
+static int get_local_syms
+ PARAMS ((bfd *, bfd *, struct bfd_link_info *));
+
+static boolean elf32_hppa_final_link
+ PARAMS ((bfd *, struct bfd_link_info *));
+
+static void hppa_record_segment_addr
+ PARAMS ((bfd *, asection *, PTR));
+
+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 *));
+
+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_finish_dynamic_symbol
+ PARAMS ((bfd *, struct bfd_link_info *,
+ struct elf_link_hash_entry *, Elf_Internal_Sym *));
+
+static enum elf_reloc_type_class elf32_hppa_reloc_type_class
+ PARAMS ((const Elf_Internal_Rela *));
+
+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 *));
+
+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 *
+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 (entry == NULL)
+ {
+ entry = bfd_hash_allocate (table,
+ sizeof (struct elf32_hppa_stub_hash_entry));
+ if (entry == NULL)
+ return entry;
+ }
+
+ /* Call the allocation method of the superclass. */
+ entry = bfd_hash_newfunc (entry, table, string);
+ if (entry != NULL)
+ {
+ struct elf32_hppa_stub_hash_entry *eh;
+
+ /* Initialize the local fields. */
+ eh = (struct elf32_hppa_stub_hash_entry *) entry;
+ eh->stub_sec = NULL;
+ eh->stub_offset = 0;
+ eh->target_value = 0;
+ eh->target_section = NULL;
+ eh->stub_type = hppa_stub_long_branch;
+ eh->h = NULL;
+ eh->id_sec = NULL;
+ }
+
+ return entry;
+}
+
+/* Initialize an entry in the link hash table. */
+
+static struct bfd_hash_entry *
+hppa_link_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 (entry == NULL)
+ {
+ entry = bfd_hash_allocate (table,
+ sizeof (struct elf32_hppa_link_hash_entry));
+ if (entry == NULL)
+ return entry;
+ }
+
+ /* Call the allocation method of the superclass. */
+ entry = _bfd_elf_link_hash_newfunc (entry, table, string);
+ if (entry != NULL)
+ {
+ struct elf32_hppa_link_hash_entry *eh;
+
+ /* Initialize the local fields. */
+ eh = (struct elf32_hppa_link_hash_entry *) entry;
+ eh->stub_cache = NULL;
+ eh->dyn_relocs = NULL;
+ eh->pic_call = 0;
+ eh->plabel = 0;
+ }
+
+ return entry;
+}
+
+/* Create the derived linker hash table. The PA ELF port uses the derived
+ hash table to keep information specific to the PA ELF linker (without
+ using static variables). */
+
+static struct bfd_link_hash_table *
+elf32_hppa_link_hash_table_create (abfd)
+ bfd *abfd;
+{
+ struct elf32_hppa_link_hash_table *ret;
+ bfd_size_type amt = sizeof (*ret);
+
+ ret = (struct elf32_hppa_link_hash_table *) bfd_malloc (amt);
+ if (ret == NULL)
+ return NULL;
+
+ if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, hppa_link_hash_newfunc))
+ {
+ free (ret);
+ return NULL;
+ }
+
+ /* 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->has_22bit_branch = 0;
+ ret->need_plt_stub = 0;
+ ret->sym_sec.abfd = NULL;
+
+ return &ret->elf.root;
+}
+
+/* Free the derived linker hash table. */
+
+static void
+elf32_hppa_link_hash_table_free (hash)
+ struct bfd_link_hash_table *hash;
+{
+ struct elf32_hppa_link_hash_table *ret
+ = (struct elf32_hppa_link_hash_table *) hash;
+
+ bfd_hash_table_free (&ret->stub_hash_table);
+ _bfd_generic_link_hash_table_free (hash);
+}
+
+/* Build a name for an entry in the stub hash table. */
+
+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;
+{
+ char *stub_name;
+ bfd_size_type len;
+
+ if (hash)
+ {
+ len = 8 + 1 + strlen (hash->elf.root.root.string) + 1 + 8 + 1;
+ stub_name = bfd_malloc (len);
+ if (stub_name != NULL)
+ {
+ sprintf (stub_name, "%08x_%s+%x",
+ input_section->id & 0xffffffff,
+ hash->elf.root.root.string,
+ (int) rel->r_addend & 0xffffffff);
+ }
+ }
+ else
+ {
+ len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
+ stub_name = bfd_malloc (len);
+ if (stub_name != NULL)
+ {
+ 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);
+ }
+ }
+ return stub_name;
+}
+
+/* Look up an entry in the stub hash. Stub entries are cached because
+ creating the stub name takes a bit of time. */
+
+static struct elf32_hppa_stub_hash_entry *
+hppa_get_stub_entry (input_section, sym_sec, hash, rel, htab)
+ 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 *htab;
+{
+ 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 = htab->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;
+
+ stub_name = hppa_stub_name (id_sec, sym_sec, hash, rel);
+ if (stub_name == NULL)
+ return NULL;
+
+ stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table,
+ stub_name, false, false);
+ if (hash != NULL)
+ hash->stub_cache = stub_entry;
+
+ free (stub_name);
+ }
+
+ return stub_entry;
+}
+
+/* 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, htab)
+ const char *stub_name;
+ asection *section;
+ struct elf32_hppa_link_hash_table *htab;
+{
+ asection *link_sec;
+ asection *stub_sec;
+ struct elf32_hppa_stub_hash_entry *stub_entry;
+
+ link_sec = htab->stub_group[section->id].link_sec;
+ stub_sec = htab->stub_group[section->id].stub_sec;
+ if (stub_sec == NULL)
+ {
+ stub_sec = htab->stub_group[link_sec->id].stub_sec;
+ if (stub_sec == NULL)
+ {
+ bfd_size_type len;
+ char *s_name;
+
+ len = strlen (link_sec->name) + sizeof (STUB_SUFFIX);
+ s_name = bfd_alloc (htab->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 = (*htab->add_stub_section) (s_name, link_sec);
+ if (stub_sec == NULL)
+ return NULL;
+ htab->stub_group[link_sec->id].stub_sec = stub_sec;
+ }
+ htab->stub_group[section->id].stub_sec = stub_sec;
+ }
+
+ /* Enter this entry into the linker stub hash table. */
+ stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, stub_name,
+ true, false);
+ if (stub_entry == NULL)
+ {
+ (*_bfd_error_handler) (_("%s: cannot create stub entry %s"),
+ bfd_archive_filename (section->owner),
+ stub_name);
+ return NULL;
+ }
+
+ stub_entry->stub_sec = stub_sec;
+ stub_entry->stub_offset = 0;
+ stub_entry->id_sec = link_sec;
+ return stub_entry;
+}
+
+/* Determine the type of stub needed, if any, for a call. */
+
+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;
+{
+ bfd_vma location;
+ bfd_vma branch_offset;
+ bfd_vma max_branch_offset;
+ unsigned int r_type;
+
+ if (hash != NULL
+ && hash->elf.plt.offset != (bfd_vma) -1
+ && (hash->elf.dynindx != -1 || hash->pic_call)
+ && !hash->plabel)
+ {
+ /* We need an import stub. Decide between hppa_stub_import
+ and hppa_stub_import_shared later. */
+ return hppa_stub_import;
+ }
+
+ /* Determine where the call point is. */
+ location = (input_sec->output_offset
+ + input_sec->output_section->vma
+ + rel->r_offset);
+
+ branch_offset = destination - location - 8;
+ r_type = ELF32_R_TYPE (rel->r_info);
+
+ /* 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;
+ }
+
+ if (branch_offset + max_branch_offset >= 2*max_branch_offset)
+ 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. */
+
+#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
+#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
+
+#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 */
+
+#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 */
+
+#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
+#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
+
+#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) */
+
+#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
+#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) */
+
+#ifndef R19_STUBS
+#define R19_STUBS 1
+#endif
+
+#if R19_STUBS
+#define LDW_R1_DLT LDW_R1_R19
+#else
+#define LDW_R1_DLT LDW_R1_DP
+#endif
+
+static boolean
+hppa_build_one_stub (gen_entry, in_arg)
+ struct bfd_hash_entry *gen_entry;
+ PTR in_arg;
+{
+ struct elf32_hppa_stub_hash_entry *stub_entry;
+ struct bfd_link_info *info;
+ struct elf32_hppa_link_hash_table *htab;
+ asection *stub_sec;
+ bfd *stub_bfd;
+ bfd_byte *loc;
+ bfd_vma sym_value;
+ bfd_vma insn;
+ bfd_vma off;
+ int val;
+ int size;
+
+ /* 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;
+
+ htab = 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;
+
+ stub_bfd = stub_sec->owner;
+
+ switch (stub_entry->stub_type)
+ {
+ 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);
+
+ 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);
+
+ size = 8;
+ break;
+
+ 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);
+
+ /* 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);
+
+ 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);
+
+ 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;
+
+ case hppa_stub_import:
+ case hppa_stub_import_shared:
+ off = stub_entry->h->elf.plt.offset;
+ if (off >= (bfd_vma) -2)
+ abort ();
+
+ off &= ~ (bfd_vma) 1;
+ sym_value = (off
+ + htab->splt->output_offset
+ + htab->splt->output_section->vma
+ - elf_gp (htab->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);
+
+ /* 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);
+
+ if (htab->multi_subspace)
+ {
+ 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);
+
+ 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);
+
+ 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);
+
+ size = 16;
+ }
+
+ 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 = htab->elf.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 (htab->splt->owner, value,
+ htab->splt->contents + off);
+ value = elf_gp (htab->splt->output_section->owner);
+ bfd_put_32 (htab->splt->owner, value,
+ htab->splt->contents + off + 4);
+ }
+ break;
+
+ 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);
+
+ /* And this is where we are coming from. */
+ sym_value -= (stub_entry->stub_offset
+ + stub_sec->output_offset
+ + stub_sec->output_section->vma);
+
+ if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
+ && (!htab->has_22bit_branch
+ || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
+ {
+ (*_bfd_error_handler)
+ (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
+ bfd_archive_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;
+ }
+
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
+ if (!htab->has_22bit_branch)
+ insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
+ else
+ insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
+ bfd_put_32 (stub_bfd, insn, loc);
+
+ 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);
+
+ /* 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;
+
+ size = 24;
+ break;
+
+ default:
+ BFD_FAIL ();
+ return false;
+ }
+
+ stub_sec->_raw_size += size;
+ return true;
+}
+
+#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 boolean
+hppa_size_one_stub (gen_entry, in_arg)
+ struct bfd_hash_entry *gen_entry;
+ PTR in_arg;
+{
+ struct elf32_hppa_stub_hash_entry *stub_entry;
+ struct elf32_hppa_link_hash_table *htab;
+ int size;
+
+ /* Massage our args to the form they really have. */
+ stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry;
+ htab = (struct elf32_hppa_link_hash_table *) in_arg;
+
+ if (stub_entry->stub_type == hppa_stub_long_branch)
+ 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 (htab->multi_subspace)
+ size = 28;
+ else
+ size = 16;
+ }
+
+ stub_entry->stub_sec->_raw_size += size;
+ return true;
+}
+
+/* Return nonzero if ABFD represents an HPPA ELF32 file.
+ Additionally we set the default architecture and machine. */
+
+static boolean
+elf32_hppa_object_p (abfd)
+ bfd *abfd;
+{
+ Elf_Internal_Ehdr * i_ehdrp;
+ unsigned int flags;
+
+ i_ehdrp = elf_elfheader (abfd);
+ if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
+ {
+ if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX)
+ return false;
+ }
+ else
+ {
+ if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
+ return false;
+ }
+
+ 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;
+}
+
+/* Undo the generic ELF code's subtraction of section->vma from the
+ value of each external symbol. */
+
+static boolean
+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;
+{
+ *valp += (*secp)->vma;
+ return true;
+}
+
+/* Create the .plt and .got sections, and set up our hash table
+ short-cuts to various dynamic sections. */
+
+static boolean
+elf32_hppa_create_dynamic_sections (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ struct elf32_hppa_link_hash_table *htab;
+
+ /* Don't try to create the .plt and .got twice. */
+ htab = hppa_link_hash_table (info);
+ if (htab->splt != NULL)
+ return true;
+
+ /* Call the generic code to do most of the work. */
+ if (! _bfd_elf_create_dynamic_sections (abfd, info))
+ return false;
+
+ htab->splt = bfd_get_section_by_name (abfd, ".plt");
+ htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt");
+
+ htab->sgot = bfd_get_section_by_name (abfd, ".got");
+ htab->srelgot = bfd_make_section (abfd, ".rela.got");
+ if (htab->srelgot == NULL
+ || ! bfd_set_section_flags (abfd, htab->srelgot,
+ (SEC_ALLOC
+ | SEC_LOAD
+ | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED
+ | SEC_READONLY))
+ || ! bfd_set_section_alignment (abfd, htab->srelgot, 2))
+ return false;
+
+ htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss");
+ htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss");
+
+ return true;
+}
+
+/* Copy the extra info we tack onto an elf_link_hash_entry. */
+
+static void
+elf32_hppa_copy_indirect_symbol (dir, ind)
+ struct elf_link_hash_entry *dir, *ind;
+{
+ struct elf32_hppa_link_hash_entry *edir, *eind;
+
+ edir = (struct elf32_hppa_link_hash_entry *) dir;
+ eind = (struct elf32_hppa_link_hash_entry *) ind;
+
+ if (eind->dyn_relocs != NULL)
+ {
+ if (edir->dyn_relocs != NULL)
+ {
+ struct elf32_hppa_dyn_reloc_entry **pp;
+ struct elf32_hppa_dyn_reloc_entry *p;
+
+ if (ind->root.type == bfd_link_hash_indirect)
+ abort ();
+
+ /* Add reloc counts against the weak sym to the strong sym
+ list. Merge any entries against the same section. */
+ for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
+ {
+ struct elf32_hppa_dyn_reloc_entry *q;
+
+ for (q = edir->dyn_relocs; q != NULL; q = q->next)
+ if (q->sec == p->sec)
+ {
+#if RELATIVE_DYNRELOCS
+ q->relative_count += p->relative_count;
+#endif
+ q->count += p->count;
+ *pp = p->next;
+ break;
+ }
+ if (q == NULL)
+ pp = &p->next;
+ }
+ *pp = edir->dyn_relocs;
+ }
+
+ edir->dyn_relocs = eind->dyn_relocs;
+ eind->dyn_relocs = NULL;
+ }
+
+ _bfd_elf_link_hash_copy_indirect (dir, ind);
+}
+
+/* Look through the relocs for a section during the first phase, and
+ calculate needed space in the global offset table, procedure linkage
+ table, and dynamic reloc sections. At this point we haven't
+ necessarily read all the input files. */
+
+static boolean
+elf32_hppa_check_relocs (abfd, info, sec, relocs)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ asection *sec;
+ const Elf_Internal_Rela *relocs;
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ const Elf_Internal_Rela *rel;
+ const Elf_Internal_Rela *rel_end;
+ struct elf32_hppa_link_hash_table *htab;
+ asection *sreloc;
+ asection *stubreloc;
+
+ if (info->relocateable)
+ return true;
+
+ htab = hppa_link_hash_table (info);
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (abfd);
+ sreloc = NULL;
+ stubreloc = NULL;
+
+ rel_end = relocs + sec->reloc_count;
+ for (rel = relocs; rel < rel_end; rel++)
+ {
+ enum {
+ NEED_GOT = 1,
+ NEED_PLT = 2,
+ NEED_DYNREL = 4,
+ PLT_PLABEL = 8
+ };
+
+ unsigned int r_symndx, r_type;
+ struct elf32_hppa_link_hash_entry *h;
+ int need_entry;
+
+ r_symndx = ELF32_R_SYM (rel->r_info);
+
+ 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]);
+
+ r_type = ELF32_R_TYPE (rel->r_info);
+
+ 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:
+ htab->has_12bit_branch = 1;
+ goto branch_common;
+
+ case R_PARISC_PCREL17C:
+ case R_PARISC_PCREL17F:
+ htab->has_17bit_branch = 1;
+ goto branch_common;
+
+ case R_PARISC_PCREL22F:
+ htab->has_22bit_branch = 1;
+ branch_common:
+ /* 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;
+ if (h->elf.type == STT_PARISC_MILLI)
+ need_entry = 0;
+ }
+ 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_archive_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 0
+ /* 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_archive_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 (htab->sgot == NULL)
+ {
+ if (htab->elf.dynobj == NULL)
+ htab->elf.dynobj = abfd;
+ if (!elf32_hppa_create_dynamic_sections (htab->elf.dynobj, info))
+ return false;
+ }
+
+ if (h != NULL)
+ {
+ h->elf.got.refcount += 1;
+ }
+ else
+ {
+ bfd_signed_vma *local_got_refcounts;
+
+ /* This is a global offset table entry for a local symbol. */
+ local_got_refcounts = elf_local_got_refcounts (abfd);
+ 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_zalloc (abfd, size));
+ if (local_got_refcounts == NULL)
+ return false;
+ elf_local_got_refcounts (abfd) = local_got_refcounts;
+ }
+ 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)
+ {
+ h->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
+ 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_got_refcounts;
+ bfd_signed_vma *local_plt_refcounts;
+
+ local_got_refcounts = elf_local_got_refcounts (abfd);
+ 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_zalloc (abfd, size));
+ if (local_got_refcounts == NULL)
+ return false;
+ elf_local_got_refcounts (abfd) = local_got_refcounts;
+ }
+ local_plt_refcounts = (local_got_refcounts
+ + symtab_hdr->sh_info);
+ local_plt_refcounts[r_symndx] += 1;
+ }
+ }
+ }
+
+ if (need_entry & NEED_DYNREL)
+ {
+ /* 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 (h != NULL && !info->shared)
+ 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 dyn_relocs 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.root.type == bfd_link_hash_defweak
+ || (h->elf.elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0)))
+ {
+ struct elf32_hppa_dyn_reloc_entry *p;
+ struct elf32_hppa_dyn_reloc_entry **head;
+
+ /* Create a reloc section in dynobj and make room for
+ this reloc. */
+ if (sreloc == NULL)
+ {
+ char *name;
+ bfd *dynobj;
+
+ 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 (htab->elf.dynobj == NULL)
+ htab->elf.dynobj = abfd;
+
+ dynobj = htab->elf.dynobj;
+ sreloc = bfd_get_section_by_name (dynobj, name);
+ if (sreloc == NULL)
+ {
+ flagword flags;
+
+ sreloc = 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 (sreloc == NULL
+ || !bfd_set_section_flags (dynobj, sreloc, flags)
+ || !bfd_set_section_alignment (dynobj, sreloc, 2))
+ return false;
+ }
+
+ elf_section_data (sec)->sreloc = sreloc;
+ }
+
+ /* If this is a global symbol, we count the number of
+ relocations we need for this symbol. */
+ if (h != NULL)
+ {
+ head = &h->dyn_relocs;
+ }
+ else
+ {
+ /* Track dynamic relocs needed for local syms too.
+ We really need local syms available to do this
+ easily. Oh well. */
+
+ asection *s;
+ s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
+ sec, r_symndx);
+ if (s == NULL)
+ return false;
+
+ head = ((struct elf32_hppa_dyn_reloc_entry **)
+ &elf_section_data (s)->local_dynrel);
+ }
+
+ p = *head;
+ if (p == NULL || p->sec != sec)
+ {
+ p = ((struct elf32_hppa_dyn_reloc_entry *)
+ bfd_alloc (htab->elf.dynobj,
+ (bfd_size_type) sizeof *p));
+ if (p == NULL)
+ return false;
+ p->next = *head;
+ *head = p;
+ p->sec = sec;
+ p->count = 0;
+#if RELATIVE_DYNRELOCS
+ p->relative_count = 0;
+#endif
+ }
+
+ p->count += 1;
+#if RELATIVE_DYNRELOCS
+ if (!IS_ABSOLUTE_RELOC (rtype))
+ p->relative_count += 1;
+#endif
+ }
+ }
+ }
+
+ return true;
+}
+
+/* Return the section that should be marked against garbage collection
+ for a given relocation. */
+
+static asection *
+elf32_hppa_gc_mark_hook (abfd, info, rel, h, sym)
+ bfd *abfd;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
+ Elf_Internal_Rela *rel;
+ struct elf_link_hash_entry *h;
+ Elf_Internal_Sym *sym;
+{
+ if (h != NULL)
+ {
+ switch ((unsigned int) ELF32_R_TYPE (rel->r_info))
+ {
+ case R_PARISC_GNU_VTINHERIT:
+ case R_PARISC_GNU_VTENTRY:
+ break;
+
+ default:
+ switch (h->root.type)
+ {
+ case bfd_link_hash_defined:
+ case bfd_link_hash_defweak:
+ return h->root.u.def.section;
+
+ case bfd_link_hash_common:
+ return h->root.u.c.p->section;
+
+ default:
+ break;
+ }
+ }
+ }
+ else
+ {
+ return bfd_section_from_elf_index (abfd, sym->st_shndx);
+ }
+
+ return NULL;
+}
+
+/* Update the got and plt entry reference counts for the section being
+ removed. */
+
+static boolean
+elf32_hppa_gc_sweep_hook (abfd, info, sec, relocs)
+ bfd *abfd;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
+ asection *sec;
+ const Elf_Internal_Rela *relocs;
+{
+ 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 *htab;
+ bfd *dynobj;
+
+ elf_section_data (sec)->local_dynrel = NULL;
+
+ 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;
+ htab = hppa_link_hash_table (info);
+ dynobj = htab->elf.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)
+ {
+ struct elf32_hppa_link_hash_entry *eh;
+ struct elf32_hppa_dyn_reloc_entry **pp;
+ struct elf32_hppa_dyn_reloc_entry *p;
+
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+
+ if (h->plt.refcount > 0)
+ h->plt.refcount -= 1;
+
+ eh = (struct elf32_hppa_link_hash_entry *) h;
+
+ for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
+ if (p->sec == sec)
+ {
+#if RELATIVE_DYNRELOCS
+ if (!IS_ABSOLUTE_RELOC (rtype))
+ p->relative_count -= 1;
+#endif
+ p->count -= 1;
+ if (p->count == 0)
+ *pp = p->next;
+ break;
+ }
+ }
+ else if (local_plt_refcounts != NULL)
+ {
+ if (local_plt_refcounts[r_symndx] > 0)
+ local_plt_refcounts[r_symndx] -= 1;
+ }
+ break;
+
+ case R_PARISC_DIR32:
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ if (r_symndx >= symtab_hdr->sh_info)
+ {
+ struct elf32_hppa_link_hash_entry *eh;
+ struct elf32_hppa_dyn_reloc_entry **pp;
+ struct elf32_hppa_dyn_reloc_entry *p;
+
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+
+ eh = (struct elf32_hppa_link_hash_entry *) h;
+
+ for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
+ if (p->sec == sec)
+ {
+#if RELATIVE_DYNRELOCS
+ if (!IS_ABSOLUTE_RELOC (R_PARISC_DIR32))
+ p->relative_count -= 1;
+#endif
+ p->count -= 1;
+ if (p->count == 0)
+ *pp = p->next;
+ break;
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ return true;
+}
+
+/* Our own version of hide_symbol, so that we can keep plt entries for
+ plabels. */
+
+static void
+elf32_hppa_hide_symbol (info, h, force_local)
+ struct bfd_link_info *info;
+ struct elf_link_hash_entry *h;
+ boolean force_local;
+{
+ if (force_local)
+ {
+ h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL;
+ if (h->dynindx != -1)
+ {
+ h->dynindx = -1;
+ _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
+ h->dynstr_index);
+ }
+ }
+
+ 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;
+ }
+}
+
+/* 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_adjust_dynamic_symbol (info, h)
+ struct bfd_link_info *info;
+ struct elf_link_hash_entry *h;
+{
+ struct elf32_hppa_link_hash_table *htab;
+ struct elf32_hppa_link_hash_entry *eh;
+ struct elf32_hppa_dyn_reloc_entry *p;
+ asection *s;
+ unsigned int power_of_two;
+
+ /* If this is a function, put it in the procedure linkage table. We
+ will fill in the contents of the procedure linkage table later. */
+ if (h->type == STT_FUNC
+ || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
+ {
+ 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 (!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)->pic_call = 1;
+ else
+ {
+ h->plt.offset = (bfd_vma) -1;
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
+ }
+ }
+
+ return true;
+ }
+ else
+ h->plt.offset = (bfd_vma) -1;
+
+ /* 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)
+ {
+ 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;
+ }
+
+ /* This is a reference to a symbol defined by a dynamic object which
+ is not a function. */
+
+ /* 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;
+
+ eh = (struct elf32_hppa_link_hash_entry *) h;
+ for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ {
+ s = p->sec->output_section;
+ if (s != NULL && (s->flags & SEC_READONLY) != 0)
+ break;
+ }
+
+ /* If we didn't find any dynamic relocs in read-only sections, then
+ we'll be keeping the dynamic relocs and avoiding the copy reloc. */
+ if (p == NULL)
+ {
+ h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
+ return true;
+ }
+
+ /* 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. */
+
+ htab = hppa_link_hash_table (info);
+
+ /* 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. */
+ if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
+ {
+ htab->srelbss->_raw_size += sizeof (Elf32_External_Rela);
+ h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
+ }
+
+ /* We need to figure out the alignment required for this symbol. I
+ have no idea how other ELF linkers handle this. */
+
+ power_of_two = bfd_log2 (h->size);
+ if (power_of_two > 3)
+ power_of_two = 3;
+
+ /* Apply the required alignment. */
+ s = htab->sdynbss;
+ s->_raw_size = BFD_ALIGN (s->_raw_size,
+ (bfd_size_type) (1 << power_of_two));
+ if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
+ {
+ if (! bfd_set_section_alignment (htab->elf.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;
+
+ /* Increment the section size to make room for the symbol. */
+ s->_raw_size += h->size;
+
+ 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
+mark_PIC_calls (h, inf)
+ struct elf_link_hash_entry *h;
+ PTR inf ATTRIBUTE_UNUSED;
+{
+ if (h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+ 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;
+ }
+
+ h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
+ ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1;
+
+ return true;
+}
+
+/* Allocate space in the .plt for entries that won't have relocations.
+ ie. pic_call and plabel entries. */
+
+static boolean
+allocate_plt_static (h, inf)
+ struct elf_link_hash_entry *h;
+ PTR inf;
+{
+ struct bfd_link_info *info;
+ struct elf32_hppa_link_hash_table *htab;
+ asection *s;
+
+ if (h->root.type == bfd_link_hash_indirect)
+ return true;
+
+ if (h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+ info = (struct bfd_link_info *) inf;
+ htab = hppa_link_hash_table (info);
+ if (((struct elf32_hppa_link_hash_entry *) h)->pic_call)
+ {
+ /* Make an entry in the .plt section for non-pic code that is
+ calling pic code. */
+ ((struct elf32_hppa_link_hash_entry *) h)->plabel = 0;
+ s = htab->splt;
+ h->plt.offset = s->_raw_size;
+ s->_raw_size += PLT_ENTRY_SIZE;
+ }
+ else if (htab->elf.dynamic_sections_created
+ && h->plt.refcount > 0)
+ {
+ /* 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 (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h))
+ {
+ /* Allocate these later. From this point on, h->plabel
+ means that the plt entry is only used by a plabel.
+ We'll be using a normal plt entry for this symbol, so
+ clear the plabel indicator. */
+ ((struct elf32_hppa_link_hash_entry *) h)->plabel = 0;
+ }
+ else if (((struct elf32_hppa_link_hash_entry *) h)->plabel)
+ {
+ /* Make an entry in the .plt section for plabel references
+ that won't have a .plt entry for other reasons. */
+ s = htab->splt;
+ h->plt.offset = s->_raw_size;
+ s->_raw_size += PLT_ENTRY_SIZE;
+ }
+ else
+ {
+ /* No .plt entry needed. */
+ h->plt.offset = (bfd_vma) -1;
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
+ }
+ }
+ else
+ {
+ h->plt.offset = (bfd_vma) -1;
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
+ }
+
+ return true;
+}
+
+/* Allocate space in .plt, .got and associated reloc sections for
+ global syms. */
+
+static boolean
+allocate_dynrelocs (h, inf)
+ struct elf_link_hash_entry *h;
+ PTR inf;
+{
+ struct bfd_link_info *info;
+ struct elf32_hppa_link_hash_table *htab;
+ asection *s;
+ struct elf32_hppa_link_hash_entry *eh;
+ struct elf32_hppa_dyn_reloc_entry *p;
+
+ if (h->root.type == bfd_link_hash_indirect)
+ return true;
+
+ if (h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+ info = (struct bfd_link_info *) inf;
+ htab = hppa_link_hash_table (info);
+ if (htab->elf.dynamic_sections_created
+ && h->plt.offset != (bfd_vma) -1
+ && !((struct elf32_hppa_link_hash_entry *) h)->pic_call
+ && !((struct elf32_hppa_link_hash_entry *) h)->plabel)
+ {
+ /* Make an entry in the .plt section. */
+ s = htab->splt;
+ h->plt.offset = s->_raw_size;
+ s->_raw_size += PLT_ENTRY_SIZE;
+
+ /* We also need to make an entry in the .rela.plt section. */
+ htab->srelplt->_raw_size += sizeof (Elf32_External_Rela);
+ htab->need_plt_stub = 1;
+ }
+
+ if (h->got.refcount > 0)
+ {
+ /* 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;
+ }
+
+ s = htab->sgot;
+ h->got.offset = s->_raw_size;
+ s->_raw_size += GOT_ENTRY_SIZE;
+ if (htab->elf.dynamic_sections_created
+ && (info->shared
+ || (h->dynindx != -1
+ && h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0))
+ {
+ htab->srelgot->_raw_size += sizeof (Elf32_External_Rela);
+ }
+ }
+ else
+ h->got.offset = (bfd_vma) -1;
+
+ eh = (struct elf32_hppa_link_hash_entry *) h;
+ if (eh->dyn_relocs == NULL)
+ return true;
+
+ /* If this is a -Bsymbolic shared link, then we need to discard all
+ space allocated for dynamic pc-relative 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. */
+ if (info->shared)
+ {
+#if RELATIVE_DYNRELOCS
+ if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
+ && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0
+ || info->symbolic))
+ {
+ struct elf32_hppa_dyn_reloc_entry **pp;
+
+ for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
+ {
+ p->count -= p->relative_count;
+ p->relative_count = 0;
+ if (p->count == 0)
+ *pp = p->next;
+ else
+ pp = &p->next;
+ }
+ }
+#endif
+ }
+ else
+ {
+ /* For the non-shared case, discard space for relocs against
+ symbols which turn out to need copy relocs or are not
+ dynamic. */
+ if ((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)
+ || (htab->elf.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)
+ goto keep;
+ }
+
+ eh->dyn_relocs = NULL;
+ return true;
+
+ keep: ;
+ }
+
+ /* Finally, allocate space. */
+ for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ {
+ asection *sreloc = elf_section_data (p->sec)->sreloc;
+ sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela);
+ }
+
+ return true;
+}
+
+/* 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
+clobber_millicode_symbols (h, info)
+ struct elf_link_hash_entry *h;
+ struct bfd_link_info *info;
+{
+ if (h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+ if (h->type == STT_PARISC_MILLI
+ && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
+ {
+ elf32_hppa_hide_symbol (info, h, true);
+ }
+ return true;
+}
+
+/* Find any dynamic relocs that apply to read-only sections. */
+
+static boolean
+readonly_dynrelocs (h, inf)
+ struct elf_link_hash_entry *h;
+ PTR inf;
+{
+ struct elf32_hppa_link_hash_entry *eh;
+ struct elf32_hppa_dyn_reloc_entry *p;
+
+ if (h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+ eh = (struct elf32_hppa_link_hash_entry *) h;
+ for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ {
+ asection *s = p->sec->output_section;
+
+ if (s != NULL && (s->flags & SEC_READONLY) != 0)
+ {
+ struct bfd_link_info *info = (struct bfd_link_info *) inf;
+
+ info->flags |= DF_TEXTREL;
+
+ /* Not an error, just cut short the traversal. */
+ return false;
+ }
+ }
+ return true;
+}
+
+/* Set the sizes of the dynamic sections. */
+
+static boolean
+elf32_hppa_size_dynamic_sections (output_bfd, info)
+ bfd *output_bfd ATTRIBUTE_UNUSED;
+ struct bfd_link_info *info;
+{
+ struct elf32_hppa_link_hash_table *htab;
+ bfd *dynobj;
+ bfd *ibfd;
+ asection *s;
+ boolean relocs;
+
+ htab = hppa_link_hash_table (info);
+ dynobj = htab->elf.dynobj;
+ if (dynobj == NULL)
+ abort ();
+
+ if (htab->elf.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 (&htab->elf,
+ clobber_millicode_symbols,
+ info);
+ }
+ else
+ {
+ /* Run through the function symbols, looking for any that are
+ PIC, and mark them as needing .plt entries so that %r19 will
+ be set up. */
+ if (! info->shared)
+ elf_link_hash_traverse (&htab->elf, mark_PIC_calls, (PTR) info);
+ }
+
+ /* Set up .got and .plt offsets for local syms, and space for local
+ dynamic relocs. */
+ for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->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 (ibfd) != bfd_target_elf_flavour)
+ continue;
+
+ for (s = ibfd->sections; s != NULL; s = s->next)
+ {
+ struct elf32_hppa_dyn_reloc_entry *p;
+
+ for (p = ((struct elf32_hppa_dyn_reloc_entry *)
+ elf_section_data (s)->local_dynrel);
+ p != NULL;
+ p = p->next)
+ {
+ if (!bfd_is_abs_section (p->sec)
+ && bfd_is_abs_section (p->sec->output_section))
+ {
+ /* Input section has been discarded, either because
+ it is a copy of a linkonce section or due to
+ linker script /DISCARD/, so we'll be discarding
+ the relocs too. */
+ }
+ else if (p->count != 0)
+ {
+ srel = elf_section_data (p->sec)->sreloc;
+ srel->_raw_size += p->count * sizeof (Elf32_External_Rela);
+ if ((p->sec->output_section->flags & SEC_READONLY) != 0)
+ info->flags |= DF_TEXTREL;
+ }
+ }
+ }
+
+ local_got = elf_local_got_refcounts (ibfd);
+ if (!local_got)
+ continue;
+
+ symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
+ locsymcount = symtab_hdr->sh_info;
+ end_local_got = local_got + locsymcount;
+ s = htab->sgot;
+ srel = htab->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 (! htab->elf.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 = htab->splt;
+ srel = htab->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;
+ }
+ }
+ }
+
+ /* Do all the .plt entries without relocs first. The dynamic linker
+ uses the last .plt reloc to find the end of the .plt (and hence
+ the start of the .got) for lazy linking. */
+ elf_link_hash_traverse (&htab->elf, allocate_plt_static, (PTR) info);
+
+ /* Allocate global sym .plt and .got entries, and space for global
+ sym dynamic relocs. */
+ elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (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;
+ for (s = dynobj->sections; s != NULL; s = s->next)
+ {
+ if ((s->flags & SEC_LINKER_CREATED) == 0)
+ continue;
+
+ if (s == htab->splt)
+ {
+ if (htab->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, htab->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 == htab->sgot)
+ ;
+ else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
+ {
+ if (s->_raw_size != 0)
+ {
+ /* Remember whether there are any reloc sections other
+ than .rela.plt. */
+ if (s != htab->srelplt)
+ relocs = 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 (htab->elf.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 (htab->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 any dynamic relocs apply to a read-only section,
+ then we need a DT_TEXTREL entry. */
+ if ((info->flags & DF_TEXTREL) == 0)
+ elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
+ (PTR) info);
+
+ if ((info->flags & DF_TEXTREL) != 0)
+ {
+ if (!add_dynamic_entry (DT_TEXTREL, 0))
+ return false;
+ }
+ }
+ }
+#undef add_dynamic_entry
+
+ return true;
+}
+
+/* External entry points for sizing and building linker stubs. */
+
+/* Set up various things so that we can make a list of input sections
+ for each output section included in the link. Returns -1 on error,
+ 0 when no stubs will be needed, and 1 on success. */
+
+int
+elf32_hppa_setup_section_lists (output_bfd, info)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+{
+ bfd *input_bfd;
+ unsigned int bfd_count;
+ int top_id, top_index;
+ asection *section;
+ asection **input_list, **list;
+ bfd_size_type amt;
+ struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
+
+ if (htab->elf.root.creator->flavour != bfd_target_elf_flavour)
+ return 0;
+
+ /* 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;
+ }
+ }
+ htab->bfd_count = bfd_count;
+
+ amt = sizeof (struct map_stub) * (top_id + 1);
+ htab->stub_group = (struct map_stub *) bfd_zmalloc (amt);
+ if (htab->stub_group == NULL)
+ return -1;
+
+ /* 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;
+ }
+
+ htab->top_index = top_index;
+ amt = sizeof (asection *) * (top_index + 1);
+ input_list = (asection **) bfd_malloc (amt);
+ htab->input_list = input_list;
+ if (input_list == NULL)
+ return -1;
+
+ /* 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;
+ }
+
+ return 1;
+}
+
+/* The linker repeatedly calls this function for each input section,
+ in the order that input sections are linked into output sections.
+ Build lists of input sections to determine groupings between which
+ we may insert linker stubs. */
+
+void
+elf32_hppa_next_input_section (info, isec)
+ struct bfd_link_info *info;
+ asection *isec;
+{
+ struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
+
+ if (isec->output_section->index <= htab->top_index)
+ {
+ asection **list = htab->input_list + isec->output_section->index;
+ if (*list != bfd_abs_section_ptr)
+ {
+ /* Steal the link_sec pointer for our list. */
+#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
+ /* This happens to make the list in reverse order,
+ which is what we want. */
+ PREV_SEC (isec) = *list;
+ *list = isec;
+ }
+ }
+}
+
+/* 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. */
+
+static void
+group_sections (htab, stub_group_size, stubs_always_before_branch)
+ struct elf32_hppa_link_hash_table *htab;
+ bfd_size_type stub_group_size;
+ boolean stubs_always_before_branch;
+{
+ asection **list = htab->input_list + htab->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 240000 bytes and thus can be handled by one stub
+ section. (or the tail section is itself larger than
+ 240000 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 22144 bytes, or
+ 2768 long branch stubs. It seems unlikely for more than
+ 2768 different functions to be called, especially from
+ code only 240000 bytes long. This limit used to be
+ 250000, but c++ code tends to generate lots of little
+ functions, and sometimes violated the assumption. */
+ do
+ {
+ prev = PREV_SEC (tail);
+ /* Set up this stub group. */
+ htab->stub_group[tail->id].link_sec = curr;
+ }
+ while (tail != curr && (tail = prev) != NULL);
+
+ /* But wait, there's more! Input sections up to 240000
+ 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);
+ htab->stub_group[tail->id].link_sec = curr;
+ }
+ }
+ tail = prev;
+ }
+ }
+ while (list-- != htab->input_list);
+ free (htab->input_list);
+#undef PREV_SEC
+}
+
+/* Read in all local syms for all input bfds, and create hash entries
+ for export stubs if we are building a multi-subspace shared lib.
+ Returns -1 on error, 1 if export stubs created, 0 otherwise. */
+
+static int
+get_local_syms (output_bfd, input_bfd, info)
+ bfd *output_bfd;
+ bfd *input_bfd;
+ struct bfd_link_info *info;
+{
+ unsigned int bfd_indx;
+ Elf_Internal_Sym *local_syms, **all_local_syms;
+ int stub_changed = 0;
+ struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
+
+ /* 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. */
+ bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
+ all_local_syms = (Elf_Internal_Sym **) bfd_zmalloc (amt);
+ htab->all_local_syms = all_local_syms;
+ if (all_local_syms == NULL)
+ return -1;
+
+ /* 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 (bfd_indx = 0;
+ input_bfd != NULL;
+ input_bfd = input_bfd->link_next, bfd_indx++)
+ {
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Shdr *shndx_hdr;
+ Elf_Internal_Sym *isym;
+ Elf32_External_Sym *ext_syms, *esym, *end_sy;
+ Elf_External_Sym_Shndx *shndx_buf, *shndx;
+ 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)
+ return -1;
+
+ 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)
+ return -1;
+
+ if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
+ || bfd_bread ((PTR) ext_syms, sec_size, input_bfd) != sec_size)
+ {
+ error_ret_free_ext_syms:
+ free (ext_syms);
+ return -1;
+ }
+
+ shndx_buf = NULL;
+ shndx_hdr = &elf_tdata (input_bfd)->symtab_shndx_hdr;
+ if (shndx_hdr->sh_size != 0)
+ {
+ sec_size = symtab_hdr->sh_info;
+ sec_size *= sizeof (Elf_External_Sym_Shndx);
+ shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (sec_size);
+ if (shndx_buf == NULL)
+ goto error_ret_free_ext_syms;
+
+ if (bfd_seek (input_bfd, shndx_hdr->sh_offset, SEEK_SET) != 0
+ || bfd_bread ((PTR) shndx_buf, sec_size, input_bfd) != sec_size)
+ {
+ free (shndx_buf);
+ goto error_ret_free_ext_syms;
+ }
+ }
+
+ /* Swap the local symbols in. */
+ for (esym = ext_syms, end_sy = esym + symtab_hdr->sh_info,
+ isym = local_syms, shndx = shndx_buf;
+ esym < end_sy;
+ esym++, isym++, shndx = (shndx ? shndx + 1 : NULL))
+ bfd_elf32_swap_symbol_in (input_bfd, esym, shndx, isym);
+
+ /* Now we can free the external symbols. */
+ free (shndx_buf);
+ free (ext_syms);
+
+ if (info->shared && htab->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 (&htab->stub_hash_table,
+ stub_name,
+ false, false);
+ if (stub_entry == NULL)
+ {
+ stub_entry = hppa_add_stub (stub_name, sec, htab);
+ if (!stub_entry)
+ return -1;
+
+ 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_archive_filename (input_bfd),
+ stub_name);
+ }
+ }
+ }
+ }
+ }
+
+ return stub_changed;
+}
+
+/* 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_size_type stub_group_size;
+ boolean stubs_always_before_branch;
+ boolean stub_changed;
+ boolean ret = 0;
+ struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
+ /* Stash our params away. */
+ htab->stub_bfd = stub_bfd;
+ htab->multi_subspace = multi_subspace;
+ htab->add_stub_section = add_stub_section;
+ htab->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 = 7680000;
+ if (htab->has_17bit_branch || htab->multi_subspace)
+ stub_group_size = 240000;
+ if (htab->has_12bit_branch)
+ stub_group_size = 7500;
+ }
-static struct elf_backend_data elf_hppa_backend_data = {
- NULL /* initially, $global$ is undefined */
-};
+ group_sections (htab, stub_group_size, stubs_always_before_branch);
-/* ELF32/HPPA relocation support
+ switch (get_local_syms (output_bfd, info->input_bfds, info))
+ {
+ default:
+ if (htab->all_local_syms)
+ goto error_ret_free_local;
+ return false;
- This file contains ELF32/HPPA relocation support as specified
- in the Stratus FTX/Golf Object File Format (SED-1762) dated
- November 19, 1992.
-*/
+ case 0:
+ stub_changed = false;
+ break;
-/*
- Written by:
-
- Center for Software Science
- Department of Computer Science
- University of Utah
-*/
+ case 1:
+ stub_changed = true;
+ break;
+ }
-#include "elf32-hppa.h"
+ while (1)
+ {
+ bfd *input_bfd;
+ unsigned int bfd_indx;
+ asection *stub_sec;
-/* ELF/PA stab entries */
+ 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;
+ asection *section;
+ Elf_Internal_Sym *local_syms;
-#ifdef hp800
-#undef hp800
-#include <a.out.h> /* we want the non-hp800 definition of 'struct nlist' */
-#define hp800
-#else
-#include <a.out.h>
-#endif
+ /* We'll need the symbol table in a second. */
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ if (symtab_hdr->sh_info == 0)
+ continue;
-/* ELF/PA relocation howto entries */
-
-static bfd_reloc_status_type hppa_elf_reloc();
-
-reloc_howto_type elf_hppa_howto_table[ELF_HOWTO_TABLE_SIZE] = {
- /* 'bitpos' and 'abs' are obsolete */
- /* type rs sz bsz pcrel bpos abs ovrf sf name */
- /* 9.3.4. Address relocation types */
- { R_HPPA_NONE, 0, 3, 19, false, 0, false, true, hppa_elf_reloc, "R_HPPA_NONE"},
- { R_HPPA_32, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_32" },
- { R_HPPA_11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_11" },
- { R_HPPA_14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_14" },
- { R_HPPA_17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_17" },
- { R_HPPA_L21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_L21" },
- { R_HPPA_R11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_R11" },
- { R_HPPA_R14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_R14" },
- { R_HPPA_R17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_R17" },
- { R_HPPA_LS21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_LS21" },
- { R_HPPA_RS11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RS11" },
- { R_HPPA_RS14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RS14" },
- { R_HPPA_RS17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RS17" },
- { R_HPPA_LD21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_LD21" },
- { R_HPPA_RD11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RD11" },
- { R_HPPA_RD14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RD14" },
- { R_HPPA_RD17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RD17" },
- { R_HPPA_LR21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_LR21" },
- { R_HPPA_RR14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RR14" },
- { R_HPPA_RR17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RR17" },
- /* 9.3.5. GOTOFF address relocation types */
- { R_HPPA_GOTOFF_11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_11" },
- { R_HPPA_GOTOFF_14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_14" },
- { R_HPPA_GOTOFF_L21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_L21" },
- { R_HPPA_GOTOFF_R11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_R11" },
- { R_HPPA_GOTOFF_R14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_R14" },
- { R_HPPA_GOTOFF_LS21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_LS21" },
- { R_HPPA_GOTOFF_RS11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_RS11" },
- { R_HPPA_GOTOFF_RS14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_RS14" },
- { R_HPPA_GOTOFF_LD21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_LD21" },
- { R_HPPA_GOTOFF_RD11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_RD11" },
- { R_HPPA_GOTOFF_RD14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_RD14" },
- { R_HPPA_GOTOFF_LR21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_LR21" },
- { R_HPPA_GOTOFF_RR14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_RR14" },
- /* 9.3.6. Absolute call relocation types */
- { R_HPPA_ABS_CALL_11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_11" },
- { R_HPPA_ABS_CALL_14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_14" },
- { R_HPPA_ABS_CALL_17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_17" },
- { R_HPPA_ABS_CALL_L21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_L21" },
- { R_HPPA_ABS_CALL_R11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_R11" },
- { R_HPPA_ABS_CALL_R14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_R14" },
- { R_HPPA_ABS_CALL_R17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_R17" },
- { R_HPPA_ABS_CALL_LS21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_LS21" },
- { R_HPPA_ABS_CALL_RS11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RS11" },
- { R_HPPA_ABS_CALL_RS14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RS14" },
- { R_HPPA_ABS_CALL_RS17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RS17" },
- { R_HPPA_ABS_CALL_LD21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_LD21" },
- { R_HPPA_ABS_CALL_RD11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RD11" },
- { R_HPPA_ABS_CALL_RD14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RD14" },
- { R_HPPA_ABS_CALL_RD17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RD17" },
- { R_HPPA_ABS_CALL_LR21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_LR21" },
- { R_HPPA_ABS_CALL_RR14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RR14" },
- { R_HPPA_ABS_CALL_RR17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RR17" },
- /* 9.3.7. PC-relative call relocation types */
- { R_HPPA_PCREL_CALL_11, 0, 3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_11" },
- { R_HPPA_PCREL_CALL_14, 0, 3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_14" },
- { R_HPPA_PCREL_CALL_17, 0, 3, 17, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_17" },
- { R_HPPA_PCREL_CALL_L21,0, 3, 21, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_L21" },
- { R_HPPA_PCREL_CALL_R11,0, 3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_R11" },
- { R_HPPA_PCREL_CALL_R14,0, 3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_R14" },
- { R_HPPA_PCREL_CALL_R17,0, 3, 17, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_R17" },
- { R_HPPA_PCREL_CALL_LS21,0,3, 21, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_LS21" },
- { R_HPPA_PCREL_CALL_RS11,0,3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RS11" },
- { R_HPPA_PCREL_CALL_RS14,0,3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RS14" },
- { R_HPPA_PCREL_CALL_RS17,0,3, 17, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RS17" },
- { R_HPPA_PCREL_CALL_LD21,0,3, 21, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_LD21" },
- { R_HPPA_PCREL_CALL_RD11,0,3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RD11" },
- { R_HPPA_PCREL_CALL_RD14,0,3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RD14" },
- { R_HPPA_PCREL_CALL_RD17,0,3, 17, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RD17" },
- { R_HPPA_PCREL_CALL_LR21,0,3, 21, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_LR21" },
- { R_HPPA_PCREL_CALL_RR14,0,3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RR14" },
- { R_HPPA_PCREL_CALL_RR17,0,3, 17, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RR17" }, /* #69 */
-
- /* 9.3.8. Plabel relocation types */
- { R_HPPA_PLABEL_32, 0, 3, 32, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PLABEL_32" },
- { R_HPPA_PLABEL_11, 0, 3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PLABEL_11" },
- { R_HPPA_PLABEL_14, 0, 3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PLABEL_14" },
- { R_HPPA_PLABEL_L21, 0, 3, 21, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PLABEL_L21" },
- { R_HPPA_PLABEL_R11, 0, 3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PLABEL_R11" },
- { R_HPPA_PLABEL_R14, 0, 3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PLABEL_R14" }, /* 75 */
-
- /* 9.3.9. Data linkage table (DLT) relocation types */
- { R_HPPA_DLT_32, 0, 3, 32, true, 0, false, true, hppa_elf_reloc, "R_HPPA_DLT_32" },
- { R_HPPA_DLT_11, 0, 3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_DLT_11" },
- { R_HPPA_DLT_14, 0, 3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_DLT_14" },
- { R_HPPA_DLT_L21, 0, 3, 21, true, 0, false, true, hppa_elf_reloc, "R_HPPA_DLT_L21" },
- { R_HPPA_DLT_R11, 0, 3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_DLT_R11" },
- { R_HPPA_DLT_R14, 0, 3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_DLT_R14" }, /* 81 */
-
- /* 9.3.10. Relocations for unwinder tables */
- { R_HPPA_UNWIND_ENTRY, 0, 3, 32, true, 0, false, true, hppa_elf_reloc, "R_HPPA_UNWIND_ENTRY"},
- { R_HPPA_UNWIND_ENTRIES,0, 3, 32, true, 0, false, true, hppa_elf_reloc, "R_HPPA_UNWIND_ENTRIES"}, /* 83 */
-
- { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, /* 84-89 */
- { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, /* 90-99 */
- { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, /* 100-109 */
- { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, /* 110-119 */
- { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, /* 120-127 */
-
- /* 9.3.11. Relocation types for complex expressions */
- { R_HPPA_PUSH_CONST, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_PUSH_CONST" },
- { R_HPPA_PUSH_SYM, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_PUSH_SYM" },
- { R_HPPA_PUSH_GOT, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_PUSH_GOT" },
- { R_HPPA_PUSH_PC, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_PUSH_PC" },
- { R_HPPA_PUSH_PROC, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_PUSH_PROC" },
- { R_HPPA_PUSH_PLABEL, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_PUSH_PLABEL" },
- { R_HPPA_MAX, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_MAX" },
- { R_HPPA_MIN, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_MIN" },
- { R_HPPA_ADD, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ADD" },
- { R_HPPA_SUB, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_SUB" },
- { R_HPPA_MULT, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_MULT" },
- { R_HPPA_DIV, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_DIV" },
- { R_HPPA_MOD, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_MOD" },
- { R_HPPA_AND, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_AND" },
- { R_HPPA_OR, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_OR" },
- { R_HPPA_XOR, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_XOR" },
- { R_HPPA_NOT, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_NOT" },
- { R_HPPA_LSHIFT, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_LSHIFT" },
- { R_HPPA_ARITH_RSHIFT, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ARITH_RSHIFT" },
- { R_HPPA_LOGIC_RSHIFT, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_LOGIC_RSHIFT" },
- { R_HPPA_EXPR_F, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_L" },
- { R_HPPA_EXPR_L, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_L" },
- { R_HPPA_EXPR_R, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_R" },
- { R_HPPA_EXPR_LS, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_LS" },
- { R_HPPA_EXPR_RS, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_RS" },
- { R_HPPA_EXPR_LD, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_LD" },
- { R_HPPA_EXPR_RD, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_RD" },
- { R_HPPA_EXPR_LR, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_LR" },
- { R_HPPA_EXPR_RR, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_RR" },
-
- { R_HPPA_EXPR_32, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_32" },
- { R_HPPA_EXPR_21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_21" },
- { R_HPPA_EXPR_11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_11" },
- { R_HPPA_EXPR_14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_14" },
- { R_HPPA_EXPR_17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_17" },
- { R_HPPA_EXPR_12, 0, 3, 12, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_12" },
- { R_HPPA_UNIMPLEMENTED, 0, 0, 0, false, 0, false, false,NULL, "R_HPPA_UNIMPLEMENTED"}, /* 163 */
-};
+ local_syms = htab->all_local_syms[bfd_indx];
-static unsigned long
-DEFUN(hppa_elf_rebuild_insn, (abfd,insn,value,r_type,r_field, r_format),
- bfd *abfd AND
- unsigned long insn AND
- unsigned long value AND
- unsigned short r_type AND
- unsigned short r_field AND
- unsigned short r_format)
-{
- unsigned long const_part; /* part of the instruction that does not change */
- unsigned long rebuilt_part;
+ /* 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;
+ bfd_size_type amt;
+
+ /* 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 ((PTR) 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)
+ && hash->elf.type != STT_PARISC_MILLI))
+ 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 = htab->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;
- switch ( r_format ) {
- case 11: {
- unsigned w1, w;
+ stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table,
+ stub_name,
+ false, false);
+ if (stub_entry != NULL)
+ {
+ /* The proper stub has already been created. */
+ free (stub_name);
+ continue;
+ }
- const_part = insn & 0xffffe002;
- dis_assemble_12(value,&w1,&w);
- rebuilt_part = (w1 << 2) | w;
- return const_part | rebuilt_part;
+ stub_entry = hppa_add_stub (stub_name, section, htab);
+ 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)
+ stub_entry->stub_type = hppa_stub_long_branch_shared;
+ }
+ stub_entry->h = hash;
+ stub_changed = true;
+ }
+
+ /* We're done with the internal relocs, free them. */
+ free (internal_relocs);
+ }
}
- case 12: {
- unsigned w1, w;
+ if (!stub_changed)
+ break;
- const_part = insn & 0xffffe002;
- dis_assemble_12(value,&w1,&w);
- rebuilt_part = (w1 << 2) | w;
- return const_part | rebuilt_part;
+ /* OK, we've added some stubs. Find out the new size of the
+ stub sections. */
+ for (stub_sec = htab->stub_bfd->sections;
+ stub_sec != NULL;
+ stub_sec = stub_sec->next)
+ {
+ stub_sec->_raw_size = 0;
+ stub_sec->_cooked_size = 0;
}
- case 14:
- const_part = insn & 0xffffc000;
- low_sign_unext(value,14,&rebuilt_part);
- return const_part | rebuilt_part;
+ bfd_hash_traverse (&htab->stub_hash_table, hppa_size_one_stub, htab);
+
+ /* Ask the linker to do its stuff. */
+ (*htab->layout_sections_again) ();
+ stub_changed = false;
+ }
+
+ ret = true;
+
+ error_ret_free_local:
+ while (htab->bfd_count-- > 0)
+ if (htab->all_local_syms[htab->bfd_count])
+ free (htab->all_local_syms[htab->bfd_count]);
+ free (htab->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 bfd_link_hash_entry *h;
+ asection *sec = NULL;
+ bfd_vma gp_val = 0;
+ struct elf32_hppa_link_hash_table *htab;
+
+ htab = hppa_link_hash_table (info);
+ h = bfd_link_hash_lookup (&htab->elf.root, "$global$", false, false, false);
- case 17: {
- unsigned w1, w2, w;
+ if (h != NULL
+ && (h->type == bfd_link_hash_defined
+ || h->type == bfd_link_hash_defweak))
+ {
+ gp_val = h->u.def.value;
+ sec = h->u.def.section;
+ }
+ else
+ {
+ asection *splt;
+ asection *sgot;
- const_part = insn & 0xffe0e002;
- dis_assemble_17(value,&w1,&w2,&w);
- rebuilt_part = (w2 << 2) | (w1 << 16) | w;
- return const_part | rebuilt_part;
+ if (htab->elf.root.creator->flavour == bfd_target_elf_flavour)
+ {
+ splt = htab->splt;
+ sgot = htab->sgot;
+ }
+ else
+ {
+ /* If we're not elf, look up the output sections in the
+ hope we may actually find them. */
+ splt = bfd_get_section_by_name (abfd, ".plt");
+ sgot = bfd_get_section_by_name (abfd, ".got");
}
- case 21:
- const_part = insn & 0xffe00000;
- dis_assemble_21(value,&rebuilt_part);
- return const_part | rebuilt_part;
+ /* 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 = splt;
+ if (sec != NULL)
+ {
+ gp_val = sec->_raw_size;
+ if (gp_val > 0x2000 || (sgot && sgot->_raw_size > 0x2000))
+ {
+ gp_val = 0x2000;
+ }
+ }
+ else
+ {
+ sec = 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");
+ }
+ }
- case 32:
- const_part = 0;
- return value;
-
- default:
- fprintf(stderr,"Relocation problem : ");
- fprintf(stderr,"Unrecognized reloc type %d (fmt=%d,fld=%d), in module %s\n",
- r_type, r_format, r_field, abfd->filename);
+ if (h != NULL)
+ {
+ h->type = bfd_link_hash_defined;
+ h->u.def.value = gp_val;
+ if (sec != NULL)
+ h->u.def.section = sec;
+ else
+ h->u.def.section = bfd_abs_section_ptr;
}
- return insn;
+ }
+
+ if (sec != NULL && sec->output_section != NULL)
+ gp_val += sec->output_section->vma + sec->output_offset;
+
+ elf_gp (abfd) = gp_val;
+ return true;
}
-static unsigned long
-DEFUN(hppa_elf_relocate_insn,
- (abfd, input_sect,
- insn, address, symp, sym_value, r_addend,
- r_type, r_format, r_field, pcrel),
- bfd *abfd AND
- asection *input_sect AND
- unsigned long insn AND
- unsigned long address AND
- asymbol *symp AND
- long sym_value AND
- long r_addend AND
- unsigned short r_type AND
- unsigned short r_format AND
- unsigned short r_field AND
- unsigned char pcrel)
+/* 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;
{
- unsigned char opcode = get_opcode(insn);
- long constant_value;
- unsigned arg_reloc;
-
- switch ( opcode ) {
- case LDO:
- case LDB:
- case LDH:
- case LDW:
- case LDWM:
- case STB:
- case STH:
- case STW:
- case STWM:
- constant_value = ELF32_HPPA_R_CONSTANT(r_addend);
- BFD_ASSERT(r_format == 14);
-
- if ( pcrel )
- sym_value -= address;
- sym_value = hppa_field_adjust(sym_value,constant_value,r_field);
- return hppa_elf_rebuild_insn(abfd,insn,sym_value,r_type,r_format, r_format);
-
- case COMICLR:
- case SUBI: /* case SUBIO: */
- case ADDIT: /* case ADDITO: */
- case ADDI: /* case ADDIO: */
- BFD_ASSERT(r_format == 11);
-
- constant_value = ((insn & 0x1) << 10) | ((insn & 0xffe) >> 1);
- sym_value = hppa_field_adjust(sym_value,constant_value,r_field);
- return hppa_elf_rebuild_insn(abfd,insn,sym_value,r_type,r_field, r_format);
-
- case LDIL:
- case ADDIL:
- BFD_ASSERT(r_format == 21);
-
- constant_value = assemble_21(insn);
- sym_value = hppa_field_adjust(sym_value,constant_value,r_field);
- return hppa_elf_rebuild_insn(abfd,insn,sym_value,r_type,r_field, r_format);
-
- case BL:
- case BE:
- case BLE:
- arg_reloc = ELF32_HPPA_R_ARG_RELOC(r_addend);
-
- BFD_ASSERT(r_format == 17);
-
- /* XXX computing constant_value is not needed??? */
- constant_value = assemble_17((insn & 0x001f0000) >> 16,
- (insn & 0x00001ffc) >> 2,
- insn & 1);
- constant_value = sign_ext(constant_value,17);
- 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);
+ asection *stub_sec;
+ struct bfd_hash_table *table;
+ struct elf32_hppa_link_hash_table *htab;
- return hppa_elf_rebuild_insn(abfd,insn,sym_value >> 2,r_type,r_field, r_format);
+ htab = hppa_link_hash_table (info);
- default:
- if ( opcode == 0 && r_format == 32 ) {
- constant_value = insn;
- sym_value = hppa_field_adjust(sym_value,constant_value,r_field);
- return sym_value;
- }
- else {
- fprintf(stderr,
- "Unrecognized opcode 0x%02x (fmt=%x,field=%x)\n",
- opcode, r_format, r_field);
- return (insn);
- }
- }
+ for (stub_sec = htab->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 (htab->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 = &htab->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;
+{
+ /* 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. */
+ return elf_hppa_sort_unwind (abfd);
+}
+
+/* Record the lowest address for the data and text segments. */
+
static void
-DEFUN(hppa_elf_relocate_unwind_table,
- (abfd, input_sect,
- data, address, symp, sym_value, r_addend,
- r_type, r_format, r_field, pcrel),
- bfd *abfd AND
- asection *input_sect AND
- PTR data AND
- unsigned long address AND
- asymbol *symp AND
- long sym_value AND
- long r_addend AND
- unsigned short r_type AND
- unsigned short r_format AND
- unsigned short r_field AND
- unsigned char pcrel)
+hppa_record_segment_addr (abfd, section, data)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ asection *section;
+ PTR data;
{
- bfd_byte *hit_data = address + (bfd_byte *)(data);
- long constant_value;
- long start_offset;
- long end_offset;
- long relocated_value;
- int i;
-
- BFD_ASSERT( r_format == 32 );
- BFD_ASSERT( r_field == e_fsel );
- switch ( r_type ) {
- case R_HPPA_UNWIND_ENTRY:
- start_offset = bfd_get_32(abfd, hit_data);
- relocated_value = hppa_field_adjust(sym_value,start_offset,r_field);
- bfd_put_32(abfd, relocated_value ,hit_data);
-
- hit_data += sizeof(unsigned long);
- end_offset = bfd_get_32(abfd, hit_data);
- relocated_value = hppa_field_adjust(sym_value,end_offset,r_field);
- bfd_put_32(abfd, relocated_value ,hit_data);
- break;
-
- case R_HPPA_UNWIND_ENTRIES:
- for ( i = 0; i < r_addend; i++,hit_data += 3*sizeof(unsigned long) ) {
- unsigned int fsize;
- start_offset = bfd_get_32(abfd, hit_data);
- /* Stuff the symbol value into the first word */
- /* of the unwind descriptor */
- bfd_put_32(abfd, sym_value ,hit_data);
-
- hit_data += sizeof(unsigned long);
- end_offset = bfd_get_32(abfd, hit_data);
- /* We could also compute the ending offset for */
- /* the 2nd word of the unwind entry by */
- /* retrieving the st_size field of the Elf_Sym */
- /* structure stored with this symbol. We can */
- /* get it with: */
- /* e = (elf_symbol_type *)symp */
- /* fsize = e->internal_elf_sym.st_size */
-
- fsize = end_offset - start_offset;
- relocated_value = hppa_field_adjust(sym_value,fsize,r_field);
- bfd_put_32(abfd, relocated_value ,hit_data);
-
- /* If this is not the last unwind entry, */
- /* adjust the symbol value. */
- if ( i+1 < r_addend ) {
- start_offset = bfd_get_32(abfd, hit_data+3*sizeof(unsigned long));
- sym_value += fsize + start_offset - end_offset;
- }
- }
- break;
+ struct elf32_hppa_link_hash_table *htab;
- default:
- fprintf(stderr,
- "Unrecognized relocation type 0x%02x (fmt=%x,field=%x)\n",
- r_type, r_format, r_field);
+ htab = (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 < htab->text_segment_base)
+ htab->text_segment_base = value;
+ }
+ else
+ {
+ if (value < htab->data_segment_base)
+ htab->data_segment_base = value;
}
- return;
+ }
}
-/* Provided the symbol, returns the value reffed */
-static long
-get_symbol_value(symbol)
-asymbol *symbol;
-{
- long relocation = 0;
-
- if ( symbol == (asymbol *)NULL )
- relocation = 0;
- else if (symbol->section == &bfd_com_section) {
- relocation = 0;
- }
- else {
- relocation = symbol->value +
- symbol->section->output_section->vma +
- symbol->section->output_offset;
- }
-
- return(relocation);
-}
+/* Perform a relocation as part of a final link. */
-/* This function provides a pretty straight-forward mapping between a */
-/* base relocation type, format and field into the relocation type */
-/* that will be emitted in an object file. The only wrinkle in the */
-/* mapping is that when the T, TR, TL, P, PR, or PL expression */
-/* prefixes are involved, the type gets promoted to a *_GOTOFF_* */
-/* relocation (in the case of T, TR, and TL) or a PLABEL relocation */
-/* (in the case of P, PR, and PL). */
+static bfd_reloc_status_type
+final_link_relocate (input_section, contents, rel, value, htab, sym_sec, h)
+ asection *input_section;
+ bfd_byte *contents;
+ const Elf_Internal_Rela *rel;
+ bfd_vma value;
+ struct elf32_hppa_link_hash_table *htab;
+ 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;
-/* NOTE: XXX the T, TR, TL, P, PR, and PL expression prefixes are not */
-/* handled yet. */
+ if (r_type == R_PARISC_NONE)
+ return bfd_reloc_ok;
-static void
- hppa_elf_gen_reloc_error(base_type,fmt,field)
-elf32_hppa_reloc_type base_type;
-int fmt;
-int field;
-{
- fprintf(stderr, "undefined relocation: base=0x%x,fmt=0x%x,field=0x%x\n",
- base_type, fmt, field);
+ 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 call should go via the plt, find the import stub in
+ the stub hash. */
+ if (sym_sec == NULL
+ || sym_sec->output_section == NULL
+ || (h != NULL
+ && h->elf.plt.offset != (bfd_vma) -1
+ && (h->elf.dynindx != -1 || h->pic_call)
+ && !h->plabel))
+ {
+ stub_entry = hppa_get_stub_entry (input_section, sym_sec,
+ h, rel, htab);
+ 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_undefined;
+ }
+ /* 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 0 /* debug them. */
+ (*_bfd_error_handler)
+ (_("%s(%s+0x%lx): fixing %s"),
+ bfd_archive_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 -= htab->text_segment_base;
+ else
+ value -= htab->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_DLTIND21L:
+ case R_PARISC_PCREL21L:
+ case R_PARISC_PLABEL21L:
+ r_field = e_lsel;
+ break;
+
+ case R_PARISC_DIR21L:
+ case R_PARISC_DPREL21L:
+ r_field = e_lrsel;
+ break;
+
+ case R_PARISC_PCREL17R:
+ case R_PARISC_PCREL14R:
+ case R_PARISC_PLABEL14R:
+ case R_PARISC_DLTIND14R:
+ r_field = e_rsel;
+ break;
+
+ case R_PARISC_DIR17R:
+ case R_PARISC_DIR14R:
+ case R_PARISC_DPREL14R:
+ 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, htab);
+ if (stub_entry == NULL)
+ return bfd_reloc_undefined;
+
+ /* 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_archive_filename (input_bfd),
+ input_section->name,
+ (long) rel->r_offset,
+ stub_entry->root.string);
+ bfd_set_error (bfd_error_bad_value);
+ 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;
}
-unsigned char
-hppa_elf_gen_reloc_type(base_type, format, field)
-elf32_hppa_reloc_type base_type;
-int format;
-int field;
+/* 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;
{
-#define UNDEFINED hppa_elf_gen_reloc_error(base_type,format,field);
-
- elf32_hppa_reloc_type final_type = base_type;
- switch ( base_type ) {
- case R_HPPA:
- switch (format) {
- case 11:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_R11;
- break;
- case e_rssel:
- final_type = R_HPPA_RS11;
- break;
- case e_rdsel:
- final_type = R_HPPA_RD11;
- break;
-
- case e_psel:
- final_type = R_HPPA_PLABEL_11;
- break;
- case e_rpsel:
- final_type = R_HPPA_PLABEL_R11;
- break;
- case e_lpsel:
- case e_tsel:
- case e_ltsel:
- case e_rtsel:
-
- case e_fsel:
- case e_lsel:
- case e_lrsel:
- case e_lssel:
- case e_rrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 12:
- UNDEFINED;
- break;
- case 14:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_R14;
- break;
- case e_rssel:
- final_type = R_HPPA_RS14;
- break;
- case e_rdsel:
- final_type = R_HPPA_RD14;
- break;
- case e_rrsel:
- final_type = R_HPPA_RR14;
- break;
-
- case e_psel:
- final_type = R_HPPA_PLABEL_14;
- break;
- case e_rpsel:
- final_type = R_HPPA_PLABEL_R14;
- break;
- case e_lpsel:
- case e_tsel:
- case e_ltsel:
- case e_rtsel:
-
- case e_fsel:
- case e_lsel:
- case e_lssel:
- case e_ldsel:
- case e_lrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 17:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_R17;
- break;
- case e_rssel:
- final_type = R_HPPA_RS17;
- break;
- case e_rdsel:
- final_type = R_HPPA_RD17;
- break;
- case e_rrsel:
- final_type = R_HPPA_RR17;
- break;
- case e_fsel:
- case e_lsel:
- case e_lssel:
- case e_ldsel:
- case e_lrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 21:
- switch ( field ) {
- case e_lsel:
- final_type = R_HPPA_L21;
- break;
- case e_lssel:
- final_type = R_HPPA_LS21;
- break;
- case e_ldsel:
- final_type = R_HPPA_LD21;
- break;
- case e_lrsel:
- final_type = R_HPPA_LR21;
- break;
- case e_lpsel:
- final_type = R_HPPA_PLABEL_L21;
- break;
- case e_rsel:
- case e_rssel:
- case e_rdsel:
- case e_rrsel:
- case e_fsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 32:
- switch ( field ) {
- case e_fsel:
- final_type = R_HPPA_32;
- break;
- case e_psel:
- final_type = R_HPPA_PLABEL_32;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
+ bfd_vma *local_got_offsets;
+ struct elf32_hppa_link_hash_table *htab;
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Rela *rel;
+ Elf_Internal_Rela *relend;
+
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+
+ htab = hppa_link_hash_table (info);
+ local_got_offsets = elf_local_got_offsets (input_bfd);
+
+ 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;
+ boolean warned_undef;
+
+ 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 relocatable 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;
}
- break;
- case R_HPPA_GOTOFF:
- switch (format) {
- case 11:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_GOTOFF_R11;
- break;
- case e_rssel:
- final_type = R_HPPA_GOTOFF_RS11;
- break;
- case e_rdsel:
- final_type = R_HPPA_GOTOFF_RD11;
- break;
- case e_fsel:
- final_type = R_HPPA_GOTOFF_11;
- break;
- case e_lsel:
- case e_lrsel:
- case e_lssel:
- case e_rrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 12:
- UNDEFINED;
- final_type = base_type;
- break;
- case 14:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_GOTOFF_R14;
- break;
- case e_rssel:
- final_type = R_HPPA_GOTOFF_RS14;
- break;
- case e_rdsel:
- final_type = R_HPPA_GOTOFF_RD14;
- break;
- case e_rrsel:
- final_type = R_HPPA_GOTOFF_RR14;
- break;
- case e_fsel:
- final_type = R_HPPA_GOTOFF_14;
- break;
- case e_lsel:
- case e_lssel:
- case e_ldsel:
- case e_lrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 17:
- UNDEFINED;
- final_type = base_type;
- break;
- case 21:
- switch ( field ) {
- case e_lsel:
- final_type = R_HPPA_GOTOFF_L21;
- break;
- case e_lssel:
- final_type = R_HPPA_GOTOFF_LS21;
- break;
- case e_ldsel:
- final_type = R_HPPA_GOTOFF_LD21;
- break;
- case e_lrsel:
- final_type = R_HPPA_GOTOFF_LR21;
- break;
- case e_rsel:
- case e_rssel:
- case e_rdsel:
- case e_rrsel:
- case e_fsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 32:
- UNDEFINED;
- final_type = base_type;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
+ }
+ continue;
+ }
+
+ /* This is a final link. */
+ h = NULL;
+ sym = NULL;
+ sym_sec = NULL;
+ warned_undef = false;
+ 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 = _bfd_elf_rela_local_sym (output_bfd, sym, sym_sec, rel);
+ }
+ 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 && !info->allow_shlib_undefined)
+ {
+ if (!((*info->callbacks->undefined_symbol)
+ (info, h->elf.root.root.string, input_bfd,
+ input_section, rel->r_offset, false)))
+ return false;
+ warned_undef = true;
}
- break;
- case R_HPPA_PCREL_CALL:
- switch (format) {
- case 11:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_PCREL_CALL_R11;
- break;
- case e_rssel:
- final_type = R_HPPA_PCREL_CALL_RS11;
- break;
- case e_rdsel:
- final_type = R_HPPA_PCREL_CALL_RD11;
- break;
- case e_fsel:
- final_type = R_HPPA_PCREL_CALL_11;
- break;
- case e_lsel:
- case e_lrsel:
- case e_lssel:
- case e_rrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 12:
- UNDEFINED;
- final_type = base_type;
- break;
- case 14:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_PCREL_CALL_R14;
- break;
- case e_rssel:
- final_type = R_HPPA_PCREL_CALL_RS14;
- break;
- case e_rdsel:
- final_type = R_HPPA_PCREL_CALL_RD14;
- break;
- case e_rrsel:
- final_type = R_HPPA_PCREL_CALL_RR14;
- break;
- case e_fsel:
- final_type = R_HPPA_PCREL_CALL_14;
- break;
- case e_lsel:
- case e_lssel:
- case e_ldsel:
- case e_lrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 17:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_PCREL_CALL_R17;
- break;
- case e_rssel:
- final_type = R_HPPA_PCREL_CALL_RS17;
- break;
- case e_rdsel:
- final_type = R_HPPA_PCREL_CALL_RD17;
- break;
- case e_rrsel:
- final_type = R_HPPA_PCREL_CALL_RR17;
- break;
- case e_fsel:
- final_type = R_HPPA_PCREL_CALL_17;
- break;
- case e_lsel:
- case e_lssel:
- case e_ldsel:
- case e_lrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 21:
- switch ( field ) {
- case e_lsel:
- final_type = R_HPPA_PCREL_CALL_L21;
- break;
- case e_lssel:
- final_type = R_HPPA_PCREL_CALL_LS21;
- break;
- case e_ldsel:
- final_type = R_HPPA_PCREL_CALL_LD21;
- break;
- case e_lrsel:
- final_type = R_HPPA_PCREL_CALL_LR21;
- break;
- case e_rsel:
- case e_rssel:
- case e_rdsel:
- case e_rrsel:
- case e_fsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
+ }
+ else
+ {
+ if (!((*info->callbacks->undefined_symbol)
+ (info, h->elf.root.root.string, input_bfd,
+ input_section, rel->r_offset, true)))
+ return false;
+ warned_undef = true;
+ }
+ }
+
+ /* 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:
+ {
+ bfd_vma off;
+ boolean do_got = 0;
+
+ /* Relocation is to the entry for this symbol in the
+ global offset table. */
+ if (h != NULL)
+ {
+ boolean dyn;
+
+ off = h->elf.got.offset;
+ dyn = htab->elf.dynamic_sections_created;
+ if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, &h->elf))
+ {
+ /* If we aren't going to call finish_dynamic_symbol,
+ then we need to handle initialisation of the .got
+ entry and create needed relocs here. Since the
+ offset must always be a multiple of 4, we use the
+ least significant bit to record whether we have
+ initialised it already. */
+ if ((off & 1) != 0)
+ off &= ~1;
+ else
+ {
+ h->elf.got.offset |= 1;
+ do_got = 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
+ {
+ local_got_offsets[r_symndx] |= 1;
+ do_got = 1;
+ }
+ }
+
+ if (do_got)
+ {
+ 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 = htab->srelgot;
+ Elf32_External_Rela *loc;
+
+ outrel.r_offset = (off
+ + htab->sgot->output_offset
+ + htab->sgot->output_section->vma);
+ outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
+ outrel.r_addend = relocation;
+ loc = (Elf32_External_Rela *) srelgot->contents;
+ loc += srelgot->reloc_count++;
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+ }
+ else
+ bfd_put_32 (output_bfd, relocation,
+ htab->sgot->contents + off);
+ }
+
+ if (off >= (bfd_vma) -2)
+ abort ();
+
+ /* Add the base of the GOT to the relocation value. */
+ relocation = (off
+ + htab->sgot->output_offset
+ + htab->sgot->output_section->vma);
+ }
+ break;
+
+ case R_PARISC_SEGREL32:
+ /* If this is the first SEGREL relocation, then initialize
+ the segment base values. */
+ if (htab->text_segment_base == (bfd_vma) -1)
+ bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
+ break;
+
+ case R_PARISC_PLABEL14R:
+ case R_PARISC_PLABEL21L:
+ case R_PARISC_PLABEL32:
+ if (htab->elf.dynamic_sections_created)
+ {
+ bfd_vma off;
+ boolean do_plt = 0;
+
+ /* 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
+ {
+ h->elf.plt.offset |= 1;
+ do_plt = 1;
}
- break;
- case 32:
- UNDEFINED;
- final_type = base_type;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
+ }
}
- break;
- case R_HPPA_PLABEL:
- switch (format) {
- case 11:
- switch (field) {
- case e_fsel:
- final_type = R_HPPA_PLABEL_11;
- break;
- case e_rsel:
- final_type = R_HPPA_PLABEL_R11;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 14:
- switch (field) {
- case e_fsel:
- final_type = R_HPPA_PLABEL_14;
- break;
- case e_rsel:
- final_type = R_HPPA_PLABEL_R14;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 21:
- switch (field) {
- case e_lsel:
- final_type = R_HPPA_PLABEL_L21;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 32:
- switch (field) {
- case e_fsel:
- final_type = R_HPPA_PLABEL_32;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
+ 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
+ {
+ local_plt_offsets[r_symndx] |= 1;
+ do_plt = 1;
+ }
}
- case R_HPPA_ABS_CALL:
- switch (format) {
- case 11:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_ABS_CALL_R11;
- break;
- case e_rssel:
- final_type = R_HPPA_ABS_CALL_RS11;
- break;
- case e_rdsel:
- final_type = R_HPPA_ABS_CALL_RD11;
- break;
- case e_fsel:
- final_type = R_HPPA_ABS_CALL_11;
- break;
- case e_lsel:
- case e_lrsel:
- case e_lssel:
- case e_rrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 12:
- UNDEFINED;
- final_type = base_type;
- break;
- case 14:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_ABS_CALL_R14;
- break;
- case e_rssel:
- final_type = R_HPPA_ABS_CALL_RS14;
- break;
- case e_rdsel:
- final_type = R_HPPA_ABS_CALL_RD14;
- break;
- case e_rrsel:
- final_type = R_HPPA_ABS_CALL_RR14;
- break;
- case e_fsel:
- final_type = R_HPPA_ABS_CALL_14;
- break;
- case e_lsel:
- case e_lssel:
- case e_ldsel:
- case e_lrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 17:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_ABS_CALL_R17;
- break;
- case e_rssel:
- final_type = R_HPPA_ABS_CALL_RS17;
- break;
- case e_rdsel:
- final_type = R_HPPA_ABS_CALL_RD17;
- break;
- case e_rrsel:
- final_type = R_HPPA_ABS_CALL_RR17;
- break;
- case e_fsel:
- final_type = R_HPPA_ABS_CALL_17;
- break;
- case e_lsel:
- case e_lssel:
- case e_ldsel:
- case e_lrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 21:
- switch ( field ) {
- case e_lsel:
- final_type = R_HPPA_ABS_CALL_L21;
- break;
- case e_lssel:
- final_type = R_HPPA_ABS_CALL_LS21;
- break;
- case e_ldsel:
- final_type = R_HPPA_ABS_CALL_LD21;
- break;
- case e_lrsel:
- final_type = R_HPPA_ABS_CALL_LR21;
- break;
- case e_rsel:
- case e_rssel:
- case e_rdsel:
- case e_rrsel:
- case e_fsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 32:
- UNDEFINED;
- final_type = base_type;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
+
+ if (do_plt)
+ {
+ if (info->shared)
+ {
+ /* Output a dynamic IPLT relocation for this
+ PLT entry. */
+ Elf_Internal_Rela outrel;
+ asection *srelplt = htab->srelplt;
+ Elf32_External_Rela *loc;
+
+ outrel.r_offset = (off
+ + htab->splt->output_offset
+ + htab->splt->output_section->vma);
+ outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
+ outrel.r_addend = relocation;
+ loc = (Elf32_External_Rela *) srelplt->contents;
+ loc += srelplt->reloc_count++;
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+ }
+ else
+ {
+ bfd_put_32 (output_bfd,
+ relocation,
+ htab->splt->contents + off);
+ bfd_put_32 (output_bfd,
+ elf_gp (htab->splt->output_section->owner),
+ htab->splt->contents + off + 4);
+ }
}
- break;
- case R_HPPA_UNWIND:
- final_type = R_HPPA_UNWIND_ENTRY;
- break;
- default:
- final_type = base_type;
- break;
- }
- return final_type;
-}
+ if (off >= (bfd_vma) -2)
+ abort ();
-/* 12.4.4. Derive format from instruction */
+ /* 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
+ + htab->splt->output_offset
+ + htab->splt->output_section->vma
+ + 2);
+ }
+ plabel = 1;
+ }
+ /* Fall through and possibly emit a dynamic relocation. */
-/* Given a machine instruction, this function determines its format. */
-/* The format can be determined solely from looking at the first six */
-/* bits (the major opcode) of the instruction. Several major opcodes */
-/* map to the same format. Opcodes which do not map to a known format */
-/* should probably be reported as an error. */
+ 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:
+ /* r_symndx will be zero only for relocs against symbols
+ from removed linkonce sections, or sections discarded by
+ a linker script. */
+ if (r_symndx == 0
+ || (input_section->flags & SEC_ALLOC) == 0)
+ break;
-unsigned char
-hppa_elf_insn2fmt(type, insn)
-elf32_hppa_reloc_type type;
-unsigned long insn;
-{
- unsigned char fmt = 0; /* XXX: is this a proper default? */
- unsigned char op = get_opcode(insn);
-
- if ( type == R_HPPA_NONE )
- fmt = 0;
- else {
- switch ( op ) {
- case ADDI:
- case ADDIT:
- case SUBI:
- fmt = 11;
- break;
- case MOVB:
- case MOVIB:
- case COMBT:
- case COMBF:
- case COMIBT:
- case COMIBF:
- case ADDBT:
- case ADDBF:
- case ADDIBT:
- case ADDIBF:
- case BVB:
- case BB:
- fmt = 12;
- break;
- case LDO:
- case LDB:
- case LDH:
- case LDW:
- case LDWM:
- case STB:
- case STH:
- case STW:
- case STWM:
- fmt = 14;
- break;
- case BL:
- case BE:
- case BLE:
- fmt = 17;
- break;
- case LDIL:
- case ADDIL:
- fmt = 21;
- break;
- default:
- fmt = 32;
- break;
+ /* The reloc types handled here and this conditional
+ expression must match the code in ..check_relocs and
+ allocate_dynrelocs. 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
+ allocate_dynrelocs. 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
+ && (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
+ && 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;
+ asection *sreloc;
+ Elf32_External_Rela *loc;
+
+ /* When generating a shared object, these relocations
+ are copied into the output file to be resolved at run
+ time. */
+
+ outrel.r_addend = rel->r_addend;
+ outrel.r_offset =
+ _bfd_elf_section_offset (output_bfd, info, input_section,
+ rel->r_offset);
+ skip = (outrel.r_offset == (bfd_vma) -1
+ || outrel.r_offset == (bfd_vma) -2);
+ outrel.r_offset += (input_section->output_offset
+ + input_section->output_section->vma);
+
+ 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;
+ }
+
+ 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
+ sreloc = elf_section_data (input_section)->sreloc;
+ if (sreloc == NULL)
+ abort ();
+
+ loc = (Elf32_External_Rela *) sreloc->contents;
+ loc += sreloc->reloc_count++;
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ r = final_link_relocate (input_section, contents, rel, relocation,
+ htab, sym_sec, h);
+
+ if (r == bfd_reloc_ok)
+ continue;
+
+ if (h != NULL)
+ sym_name = h->elf.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);
+ }
+
+ howto = elf_hppa_howto_table + r_type;
+
+ if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported)
+ {
+ if (r == bfd_reloc_notsupported || !warned_undef)
+ {
+ (*_bfd_error_handler)
+ (_("%s(%s+0x%lx): cannot handle %s for %s"),
+ bfd_archive_filename (input_bfd),
+ input_section->name,
+ (long) rel->r_offset,
+ howto->name,
+ sym_name);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ }
+ else
+ {
+ if (!((*info->callbacks->reloc_overflow)
+ (info, sym_name, howto->name, (bfd_vma) 0,
+ input_bfd, input_section, rel->r_offset)))
+ return false;
}
- return fmt;
+ }
+
+ return true;
}
-/* this function is in charge of performing all the HP PA relocations */
-long global_value = 0;
-long GOT_value = 0; /* XXX: need to calculate this! For HPUX, GOT == DP */
-asymbol *global_symbol = (asymbol *)NULL;
+/* Finish up dynamic symbol handling. We set the contents of various
+ dynamic sections here. */
-static bfd_reloc_status_type
-DEFUN(hppa_elf_reloc,(abfd, reloc_entry, symbol_in, data, input_section, output_bfd),
- bfd *abfd AND
- arelent *reloc_entry AND
- asymbol *symbol_in AND
- PTR data AND
- asection *input_section AND
- bfd *output_bfd)
+static boolean
+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;
{
- unsigned long insn;
- long sym_value = 0;
- unsigned long unsigned_value;
- long signed_value;
-
- unsigned long addr = reloc_entry->address ; /*+ input_section->vma*/
- bfd_byte *hit_data = addr + (bfd_byte *)(data);
- unsigned short r_type = reloc_entry->howto->type & 0xFF;
- unsigned short r_field = e_fsel;
- boolean r_pcrel = reloc_entry->howto->pc_relative;
-
- /* howto->bitsize contains the format (11, 14, 21, etc) information */
- unsigned r_format = reloc_entry->howto->bitsize;
- long r_addend = reloc_entry->addend;
-
-
- if (output_bfd) {
- /* Partial linking - do nothing */
- reloc_entry->address += input_section->output_offset;
- return bfd_reloc_ok;
- }
-
- if ( symbol_in && symbol_in->section == &bfd_und_section )
- return bfd_reloc_undefined;
-
- sym_value = get_symbol_value(symbol_in);
-
- /* compute value of $global$ if it is there. */
-
- if ( global_symbol == (asymbol *)NULL ) {
- struct elf_backend_data * bed
- = (struct elf_backend_data *)abfd->xvec->backend_data;
-
- if ( bed && bed->global_sym ) {
- asymbol *gsym = &bed->global_sym->symbol;
- global_value
- = gsym->value
- + gsym->section->output_section->vma
- + gsym->section->output_offset;
- GOT_value = global_value; /* XXX: For HP-UX, GOT==DP */
- global_symbol = gsym;
- }
+ struct elf32_hppa_link_hash_table *htab;
+
+ htab = hppa_link_hash_table (info);
+
+ if (h->plt.offset != (bfd_vma) -1)
+ {
+ bfd_vma value;
+
+ if (h->plt.offset & 1)
+ abort ();
+
+ /* This symbol has an entry in the procedure linkage table. Set
+ it up.
+
+ 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)
+ {
+ 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);
}
- /* get the instruction word */
- insn = bfd_get_32(abfd, hit_data);
-
- /* relocate the value based on the relocation type */
-
- /* basic_type_1: relocation is relative to $global$ */
- /* basic_type_2: relocation is relative to the current GOT */
- /* basic_type_3: relocation is an absolute call */
- /* basic_type_4: relocation is an PC-relative call */
- /* basic_type_5: relocation is plabel reference */
- /* basic_type_6: relocation is an unwind table relocation */
- /* extended_type: unimplemented */
-
- switch ( r_type ) {
- case R_HPPA_NONE:
- break;
- case R_HPPA_32: /* Symbol + Addend 32 */
-
- r_field = e_fsel;
- goto do_basic_type_1;
- case R_HPPA_L21: /* L (Symbol, Addend) 21 */
- r_field = e_lsel;
- goto do_basic_type_1;
- case R_HPPA_R11: /* R (Symbol, Addend) 11 */
- r_field = e_rsel;
- goto do_basic_type_1;
- case R_HPPA_R14: /* R (Symbol, Addend) 14 */
- r_field = e_rsel;
- goto do_basic_type_1;
- case R_HPPA_R17: /* R (Symbol, Addend) 17 */
- r_field = e_rsel;
- goto do_basic_type_1;
- case R_HPPA_LS21: /* LS(Symbol, Addend) 21 */
- r_field = e_lssel;
- goto do_basic_type_1;
- case R_HPPA_RS11: /* RS(Symbol, Addend) 11 */
- r_field = e_rssel;
- goto do_basic_type_1;
- case R_HPPA_RS14: /* RS(Symbol, Addend) 14 */
- r_field = e_rssel;
- goto do_basic_type_1;
- case R_HPPA_RS17: /* RS(Symbol, Addend) 17 */
- r_field = e_ldsel;
- goto do_basic_type_1;
- case R_HPPA_LD21: /* LD(Symbol, Addend) 21 */
- r_field = e_ldsel;
- goto do_basic_type_1;
- case R_HPPA_RD11: /* RD(Symbol, Addend) 11 */
- r_field = e_rdsel;
- goto do_basic_type_1;
- case R_HPPA_RD14: /* RD(Symbol, Addend) 14 */
- r_field = e_rdsel;
- goto do_basic_type_1;
- case R_HPPA_RD17: /* RD(Symbol, Addend) 17 */
- r_field = e_rdsel;
- goto do_basic_type_1;
- case R_HPPA_LR21: /* LR(Symbol, Addend) 21 */
- r_field = e_lrsel;
- goto do_basic_type_1;
- case R_HPPA_RR14: /* RR(Symbol, Addend) 14 */
- r_field = e_rrsel;
- goto do_basic_type_1;
- case R_HPPA_RR17: /* RR(Symbol, Addend) 17 */
- r_field = e_rrsel;
-
- do_basic_type_1:
- insn = hppa_elf_relocate_insn(abfd, input_section, insn, addr,
- symbol_in, sym_value, r_addend,
- r_type, r_format, r_field, r_pcrel);
- break;
-
- case R_HPPA_GOTOFF_11: /* Symbol - GOT + Addend 11 */
- r_field = e_fsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_14: /* Symbol - GOT + Addend 14 */
- r_field = e_fsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_L21: /* L (Sym - GOT, Addend) 21 */
- r_field = e_lsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_R11: /* R (Sym - GOT, Addend) 11 */
- r_field = e_rsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_R14: /* R (Sym - GOT, Addend) 14 */
- r_field = e_rsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_LS21: /* LS(Sym - GOT, Addend) 21 */
- r_field = e_lssel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_RS11: /* RS(Sym - GOT, Addend) 11 */
- r_field = e_rssel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_RS14: /* RS(Sym - GOT, Addend) 14 */
- r_field = e_rssel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_LD21: /* LD(Sym - GOT, Addend) 21 */
- r_field = e_ldsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_RD11: /* RD(Sym - GOT, Addend) 11 */
- r_field = e_rdsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_RD14: /* RD(Sym - GOT, Addend) 14 */
- r_field = e_rdsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_LR21: /* LR(Sym - GOT, Addend) 21 */
- r_field = e_lrsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_RR14: /* RR(Sym - GOT, Addend) 14 */
- r_field = e_rrsel;
- do_basic_type_2:
- sym_value -= GOT_value;
- insn = hppa_elf_relocate_insn(abfd, input_section, insn, addr,
- symbol_in, sym_value, r_addend,
- r_type, r_format, r_field, r_pcrel);
- break;
-
- case R_HPPA_ABS_CALL_11: /* Symbol + Addend 11 */
- r_field = e_fsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_14: /* Symbol + Addend 14 */
- r_field = e_fsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_17: /* Symbol + Addend 17 */
- r_field = e_fsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_L21: /* L (Symbol, Addend) 21 */
- r_field = e_lsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_R11: /* R (Symbol, Addend) 11 */
- r_field = e_rsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_R14: /* R (Symbol, Addend) 14 */
- r_field = e_rsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_R17: /* R (Symbol, Addend) 17 */
- r_field = e_rsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_LS21: /* LS(Symbol, Addend) 21 */
- r_field = e_lssel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RS11: /* RS(Symbol, Addend) 11 */
- r_field = e_lssel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RS14: /* RS(Symbol, Addend) 14 */
- r_field = e_rssel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RS17: /* RS(Symbol, Addend) 17 */
- r_field = e_rssel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_LD21: /* LD(Symbol, Addend) 21 */
- r_field = e_ldsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RD11: /* RD(Symbol, Addend) 11 */
- r_field = e_rdsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RD14: /* RD(Symbol, Addend) 14 */
- r_field = e_rdsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RD17: /* RD(Symbol, Addend) 17 */
- r_field = e_rdsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_LR21: /* LR(Symbol, Addend) 21 */
- r_field = e_lrsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RR14: /* RR(Symbol, Addend) 14 */
- r_field = e_rrsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RR17: /* RR(Symbol, Addend) 17 */
- r_field = e_rrsel;
- do_basic_type_3:
- insn = hppa_elf_relocate_insn(abfd, input_section, insn, addr,
- symbol_in, sym_value, r_addend,
- r_type, r_format, r_field, r_pcrel);
- break;
-
- case R_HPPA_PCREL_CALL_11: /* Symbol - PC + Addend 11 */
- r_field = e_fsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_14: /* Symbol - PC + Addend 14 */
- r_field = e_fsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_17: /* Symbol - PC + Addend 17 */
- r_field = e_fsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_L21: /* L (Symbol - PC, Addend) 21 */
- r_field = e_lsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_R11: /* R (Symbol - PC, Addend) 11 */
- r_field = e_rsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_R14: /* R (Symbol - PC, Addend) 14 */
- r_field = e_rsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_R17: /* R (Symbol - PC, Addend) 17 */
- r_field = e_rsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_LS21: /* LS(Symbol - PC, Addend) 21 */
- r_field = e_lssel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RS11: /* RS(Symbol - PC, Addend) 11 */
- r_field = e_rssel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RS14: /* RS(Symbol - PC, Addend) 14 */
- r_field = e_rssel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RS17: /* RS(Symbol - PC, Addend) 17 */
- r_field = e_rssel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_LD21: /* LD(Symbol - PC, Addend) 21 */
- r_field = e_ldsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RD11: /* RD(Symbol - PC, Addend) 11 */
- r_field = e_rdsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RD14: /* RD(Symbol - PC, Addend) 14 */
- r_field = e_rdsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RD17: /* RD(Symbol - PC, Addend) 17 */
- r_field = e_rdsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_LR21: /* LR(Symbol - PC, Addend) 21 */
- r_field = e_lrsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RR14: /* RR(Symbol - PC, Addend) 14 */
- r_field = e_rrsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RR17: /* RR(Symbol - PC, Addend) 17 */ /* #69 */
- r_field = e_rrsel;
- do_basic_type_4:
- insn = hppa_elf_relocate_insn(abfd, input_section, insn, addr,
- symbol_in, sym_value, r_addend,
- r_type, r_format, r_field, r_pcrel);
- break;
-
- case R_HPPA_PLABEL_32:
- case R_HPPA_PLABEL_11:
- case R_HPPA_PLABEL_14:
- r_field = e_fsel;
- goto do_basic_type_5;
- case R_HPPA_PLABEL_L21:
- r_field = e_lsel;
- goto do_basic_type_5;
- case R_HPPA_PLABEL_R11:
- case R_HPPA_PLABEL_R14:
- r_field = e_rsel;
- do_basic_type_5:
- insn = hppa_elf_relocate_insn(abfd, input_section, insn, addr,
- symbol_in, sym_value, r_addend,
- r_type, r_format, r_field, r_pcrel);
- break;
-
- case R_HPPA_UNWIND_ENTRY:
- case R_HPPA_UNWIND_ENTRIES:
- hppa_elf_relocate_unwind_table(abfd, input_section, data, addr,
- symbol_in, sym_value, r_addend,
- r_type, r_format, r_field, r_pcrel);
- return (bfd_reloc_ok);
-
- case R_HPPA_PUSH_CONST: /* push Addend - - */
- case R_HPPA_PUSH_SYM: /* push Symbol - - */
- case R_HPPA_PUSH_GOT: /* push GOT - - */
- case R_HPPA_PUSH_PC: /* push PC - - */
- case R_HPPA_PUSH_PROC: /* push Symbol - - */
- case R_HPPA_PUSH_PLABEL: /* [TBD] - - */
- case R_HPPA_MAX: /* pop A and B, push max(B,A) - - */
- case R_HPPA_MIN: /* pop A and B, push min(B,A) - - */
- case R_HPPA_ADD: /* pop A and B, push B + A - - */
- case R_HPPA_SUB: /* pop A and B, push B - A - - */
- case R_HPPA_MULT: /* pop A and B, push B * A - - */
- case R_HPPA_DIV: /* pop A and B, push B / A - - */
- case R_HPPA_MOD: /* pop A and B, push B % A - - */
- case R_HPPA_AND: /* pop A and B, push B & A - - */
- case R_HPPA_OR: /* pop A and B, push B | A - - */
- case R_HPPA_XOR: /* pop A and B, push B ^ A - - */
- case R_HPPA_NOT: /* pop A, push ~A - - */
- case R_HPPA_LSHIFT: /* pop A, push A << Addend - - */
- case R_HPPA_ARITH_RSHIFT: /* pop A, push A >> Addend - - */
- case R_HPPA_LOGIC_RSHIFT: /* pop A, push A >> Addend - - */
- case R_HPPA_EXPR_F: /* pop A, push A + Addend L - */
- case R_HPPA_EXPR_L: /* pop A, push L(A,Addend) L - */
- case R_HPPA_EXPR_R: /* pop A, push R(A,Addend) R - */
- case R_HPPA_EXPR_LS: /* pop A, push LS(A,Addend) LS - */
- case R_HPPA_EXPR_RS: /* pop A, push RS(A,Addend) RS - */
- case R_HPPA_EXPR_LD: /* pop A, push LD(A,Addend) LD - */
- case R_HPPA_EXPR_RD: /* pop A, push RD(A,Addend) RD - */
- case R_HPPA_EXPR_LR: /* pop A, push LR(A,Addend) LR - */
- case R_HPPA_EXPR_RR: /* pop A, push RR(A,Addend) RR - */
-
- case R_HPPA_EXPR_32: /* pop - 32 */
- case R_HPPA_EXPR_21: /* pop - 21 */
- case R_HPPA_EXPR_11: /* pop - 11 */
- case R_HPPA_EXPR_14: /* pop - 14 */
- case R_HPPA_EXPR_17: /* pop - 17 */
- case R_HPPA_EXPR_12: /* pop - 12 */
- fprintf(stderr, "Relocation problem: ");
- fprintf(stderr,"Unimplemented reloc type %d, in module %s\n",
- r_type,abfd->filename);
- return(bfd_reloc_notsupported);
- default:
- fprintf(stderr,"Relocation problem : ");
- fprintf(stderr,"Unrecognized reloc type %d, in module %s\n",
- r_type,abfd->filename);
- return (bfd_reloc_dangerous);
+ if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call)
+ {
+ Elf_Internal_Rela rel;
+ Elf32_External_Rela *loc;
+
+ /* Create a dynamic IPLT relocation for this entry. */
+ rel.r_offset = (h->plt.offset
+ + htab->splt->output_offset
+ + htab->splt->output_section->vma);
+ if (h->dynindx != -1)
+ {
+ rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT);
+ rel.r_addend = 0;
+ }
+ else
+ {
+ /* 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;
+ }
+
+ loc = (Elf32_External_Rela *) htab->srelplt->contents;
+ loc += htab->srelplt->reloc_count++;
+ bfd_elf32_swap_reloca_out (htab->splt->output_section->owner,
+ &rel, loc);
+ }
+ else
+ {
+ bfd_put_32 (htab->splt->owner,
+ value,
+ htab->splt->contents + h->plt.offset);
+ bfd_put_32 (htab->splt->owner,
+ elf_gp (htab->splt->output_section->owner),
+ htab->splt->contents + h->plt.offset + 4);
+ }
+
+ 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;
+ }
+ }
+
+ if (h->got.offset != (bfd_vma) -1)
+ {
+ Elf_Internal_Rela rel;
+ Elf32_External_Rela *loc;
+
+ /* This symbol has an entry in the global offset table. Set it
+ up. */
+
+ rel.r_offset = ((h->got.offset &~ (bfd_vma) 1)
+ + htab->sgot->output_offset
+ + htab->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))
+ {
+ 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
+ {
+ if ((h->got.offset & 1) != 0)
+ abort ();
+ bfd_put_32 (output_bfd, (bfd_vma) 0,
+ htab->sgot->contents + h->got.offset);
+ rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32);
+ rel.r_addend = 0;
}
- /* update the instruction word */
- bfd_put_32(abfd, insn ,hit_data);
+ loc = (Elf32_External_Rela *) htab->srelgot->contents;
+ loc += htab->srelgot->reloc_count++;
+ bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
+ }
+
+ if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
+ {
+ asection *s;
+ Elf_Internal_Rela rel;
+ Elf32_External_Rela *loc;
+
+ /* This symbol needs a copy reloc. Set it up. */
+
+ if (! (h->dynindx != -1
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)))
+ abort ();
+
+ s = htab->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);
+ loc = (Elf32_External_Rela *) s->contents + s->reloc_count++;
+ bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
+ }
+
+ /* 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 (bfd_reloc_ok);
+ return true;
+}
+
+/* Used to decide how to sort relocs in an optimal manner for the
+ dynamic linker, before writing them out. */
+
+static enum elf_reloc_type_class
+elf32_hppa_reloc_type_class (rela)
+ const Elf_Internal_Rela *rela;
+{
+ if (ELF32_R_SYM (rela->r_info) == 0)
+ return reloc_class_relative;
+ switch ((int) ELF32_R_TYPE (rela->r_info))
+ {
+ case R_PARISC_IPLT:
+ return reloc_class_plt;
+ case R_PARISC_COPY:
+ return reloc_class_copy;
+ default:
+ return reloc_class_normal;
+ }
}
-static reloc_howto_type *
-elf_hppa_reloc_type_lookup (arch, code)
- bfd_arch_info_type *arch;
- bfd_reloc_code_real_type code;
+/* Finish up the dynamic sections. */
+
+static boolean
+elf32_hppa_finish_dynamic_sections (output_bfd, info)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
{
- if ( code < R_HPPA_UNIMPLEMENTED ) {
- return &elf_hppa_howto_table[code];
+ bfd *dynobj;
+ struct elf32_hppa_link_hash_table *htab;
+ asection *sdyn;
+
+ htab = hppa_link_hash_table (info);
+ dynobj = htab->elf.dynobj;
+
+ sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
+
+ if (htab->elf.dynamic_sections_created)
+ {
+ Elf32_External_Dyn *dyncon, *dynconend;
+
+ if (sdyn == NULL)
+ abort ();
+
+ dyncon = (Elf32_External_Dyn *) sdyn->contents;
+ dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
+ for (; dyncon < dynconend; dyncon++)
+ {
+ Elf_Internal_Dyn dyn;
+ asection *s;
+
+ bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
+
+ switch (dyn.d_tag)
+ {
+ default:
+ continue;
+
+ case DT_PLTGOT:
+ /* Use PLTGOT to set the GOT register. */
+ dyn.d_un.d_ptr = elf_gp (output_bfd);
+ break;
+
+ case DT_JMPREL:
+ s = htab->srelplt;
+ dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
+ break;
+
+ case DT_PLTRELSZ:
+ s = htab->srelplt;
+ if (s->_cooked_size != 0)
+ dyn.d_un.d_val = s->_cooked_size;
+ else
+ dyn.d_un.d_val = s->_raw_size;
+ break;
+
+ case DT_RELASZ:
+ /* Don't count procedure linkage table relocs in the
+ overall reloc count. */
+ if (htab->srelplt != NULL)
+ {
+ s = htab->srelplt->output_section;
+ if (s->_cooked_size != 0)
+ dyn.d_un.d_val -= s->_cooked_size;
+ else
+ dyn.d_un.d_val -= s->_raw_size;
+ }
+ break;
+ }
+
+ bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ }
+ }
+
+ if (htab->sgot != NULL && htab->sgot->_raw_size != 0)
+ {
+ /* 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),
+ htab->sgot->contents);
+
+ /* The second entry is reserved for use by the dynamic linker. */
+ memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
+
+ /* Set .got entry size. */
+ elf_section_data (htab->sgot->output_section)
+ ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
+ }
+
+ if (htab->splt != NULL && htab->splt->_raw_size != 0)
+ {
+ /* Set plt entry size. */
+ elf_section_data (htab->splt->output_section)
+ ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
+
+ if (htab->need_plt_stub)
+ {
+ /* Set up the .plt stub. */
+ memcpy (htab->splt->contents
+ + htab->splt->_raw_size - sizeof (plt_stub),
+ plt_stub, sizeof (plt_stub));
+
+ if ((htab->splt->output_offset
+ + htab->splt->output_section->vma
+ + htab->splt->_raw_size)
+ != (htab->sgot->output_offset
+ + htab->sgot->output_section->vma))
+ {
+ (*_bfd_error_handler)
+ (_(".got section not immediately after .plt section"));
+ return false;
+ }
}
+ }
- return (reloc_howto_type *)0;
+ return true;
}
-#include "elfcode.h"
+/* Tweak the OSABI field of the elf header. */
-bfd_target elf_big_vec =
+static void
+elf32_hppa_post_process_headers (abfd, link_info)
+ bfd *abfd;
+ struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
{
- /* name: identify kind of target */
- "elf-big",
-
- /* flavour: general indication about file */
- bfd_target_elf_flavour,
-
- /* byteorder_big_p: data is big endian */
- true,
-
- /* header_byteorder_big_p: header is also big endian */
- true,
-
- /* object_flags: mask of all file flags */
- (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
- DYNAMIC | WP_TEXT),
-
- /* section_flags: mask of all section flags */
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
- SEC_CODE | SEC_DATA),
-
- /* ar_pad_char: pad character for filenames within an archive header
- FIXME: this really has nothing to do with ELF, this is a characteristic
- of the archiver and/or os and should be independently tunable */
- '/',
-
- /* ar_max_namelen: maximum number of characters in an archive header
- FIXME: this really has nothing to do with ELF, this is a characteristic
- of the archiver and should be independently tunable. This value is
- a WAG (wild a** guess) */
- 15,
-
- /* align_power_min: minimum alignment restriction for any section
- FIXME: this value may be target machine dependent */
- 3,
-
- /* Routines to byte-swap various sized integers from the data sections */
- _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16,
-
- /* Routines to byte-swap various sized integers from the file headers */
- _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16,
-
- /* bfd_check_format: check the format of a file being read */
- { _bfd_dummy_target, /* unknown format */
- elf_object_p, /* assembler/linker output (object file) */
- bfd_generic_archive_p, /* an archive */
- elf_core_file_p /* a core file */
- },
-
- /* bfd_set_format: set the format of a file being written */
- { bfd_false,
- elf_mkobject,
- _bfd_generic_mkarchive,
- bfd_false
- },
-
- /* bfd_write_contents: write cached information into a file being written */
- { bfd_false,
- elf_write_object_contents,
- _bfd_write_archive_contents,
- bfd_false
- },
-
- /* Initialize a jump table with the standard macro. All names start
- with "elf" */
- JUMP_TABLE(elf),
-
- /* SWAP_TABLE */
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- elf_hppa_reloc_type_lookup,
- NULL, /* _bfd_make_debug_symbol */
- (PTR)&elf_hppa_backend_data
-};
+ Elf_Internal_Ehdr * i_ehdrp;
-bfd_target elf_little_vec =
+ i_ehdrp = elf_elfheader (abfd);
+
+ if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
+ {
+ i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX;
+ }
+ else
+ {
+ i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX;
+ }
+}
+
+/* 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;
{
- /* name: identify kind of target */
- "elf-little",
-
- /* flavour: general indication about file */
- bfd_target_elf_flavour,
-
- /* byteorder_big_p: data is big endian */
- false, /* Nope -- this one's little endian */
-
- /* header_byteorder_big_p: header is also big endian */
- false, /* Nope -- this one's little endian */
-
- /* object_flags: mask of all file flags */
- (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
- DYNAMIC | WP_TEXT),
-
- /* section_flags: mask of all section flags */
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
- SEC_DATA),
-
- /* ar_pad_char: pad character for filenames within an archive header
- FIXME: this really has nothing to do with ELF, this is a characteristic
- of the archiver and/or os and should be independently tunable */
- '/',
-
- /* ar_max_namelen: maximum number of characters in an archive header
- FIXME: this really has nothing to do with ELF, this is a characteristic
- of the archiver and should be independently tunable. This value is
- a WAG (wild a** guess) */
- 15,
-
- /* align_power_min: minimum alignment restriction for any section
- FIXME: this value may be target machine dependent */
- 3,
-
- /* Routines to byte-swap various sized integers from the data sections */
- _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16,
-
- /* Routines to byte-swap various sized integers from the file headers */
- _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16,
-
- /* bfd_check_format: check the format of a file being read */
- { _bfd_dummy_target, /* unknown format */
- elf_object_p, /* assembler/linker output (object file) */
- bfd_generic_archive_p, /* an archive */
- elf_core_file_p /* a core file */
- },
-
- /* bfd_set_format: set the format of a file being written */
- { bfd_false,
- elf_mkobject,
- _bfd_generic_mkarchive,
- bfd_false
- },
-
- /* bfd_write_contents: write cached information into a file being written */
- { bfd_false,
- elf_write_object_contents,
- _bfd_write_archive_contents,
- bfd_false
- },
-
- /* Initialize a jump table with the standard macro. All names start
- with "elf" */
- JUMP_TABLE(elf),
-
- /* SWAP_TABLE */
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- elf_hppa_reloc_type_lookup,
- NULL, /* _bfd_make_debug_symbol */
- (PTR)&elf_hppa_backend_data
-};
+ 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_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 bfd_elf32_bfd_final_link elf32_hppa_final_link
+#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
+#define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free
+#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_copy_indirect_symbol elf32_hppa_copy_indirect_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_reloc_type_class elf32_hppa_reloc_type_class
+
+#define elf_backend_can_gc_sections 1
+#define elf_backend_can_refcount 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_ARCH bfd_arch_hppa
+#define ELF_MACHINE_CODE EM_PARISC
+#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