/* BFD back-end for HP PA-RISC ELF files.
- Copyright (C) 1990-1991 Free Software Foundation, Inc.
+ Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 1997
+ Free Software Foundation, Inc.
Written by
-
+
Center for Software Science
Department of Computer Science
University of Utah
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 "bfdlink.h"
#include "libbfd.h"
#include "obstack.h"
-#include "libelf.h"
+#include "elf-bfd.h"
+
+/* The internal type of a symbol table extension entry. */
+typedef unsigned long symext_entryS;
+
+/* The external type of a symbol table extension entry. */
+#define ELF32_PARISC_SX_SIZE (4)
+#define ELF32_PARISC_SX_GET(bfd, addr) bfd_h_get_32 ((bfd), (addr))
+#define ELF32_PARISC_SX_PUT(bfd, val, addr) \
+ bfd_h_put_32 ((bfd), (val), (addr))
+
+/* HPPA symbol table extension entry types */
+enum elf32_hppa_symextn_types
+{
+ PARISC_SXT_NULL,
+ PARISC_SXT_SYMNDX,
+ PARISC_SXT_ARG_RELOC,
+};
+
+/* These macros compose and decompose the value of a symextn entry:
+
+ entry_type = ELF32_PARISC_SX_TYPE(word);
+ entry_value = ELF32_PARISC_SX_VAL(word);
+ word = ELF32_PARISC_SX_WORD(type,val); */
+
+#define ELF32_PARISC_SX_TYPE(p) ((p) >> 24)
+#define ELF32_PARISC_SX_VAL(p) ((p) & 0xFFFFFF)
+#define ELF32_PARISC_SX_WORD(type,val) (((type) << 24) + (val & 0xFFFFFF))
+
+/* The following was added facilitate implementation of the .hppa_symextn
+ section. This section is built after the symbol table is built in the
+ elf_write_object_contents routine (called from bfd_close). It is built
+ so late because it requires information that is not known until
+ the symbol and string table sections have been allocated, and
+ the symbol table has been built. */
+
+#define SYMEXTN_SECTION_NAME ".PARISC.symext"
+
+struct symext_chain
+ {
+ symext_entryS entry;
+ struct symext_chain *next;
+ };
+
+typedef struct symext_chain symext_chainS;
+
+/* We use three different 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.
+
+ The last hash table keeps track of argument location information needed
+ to build hash tables. Each function with nonzero argument location
+ bits will have an entry in this table. */
+
+/* Hash table for linker stubs. */
+
+struct elf32_hppa_stub_hash_entry
+{
+ /* Base hash table entry structure, we can get the name of the stub
+ (and thus know exactly what actions it performs) from the base
+ hash table entry. */
+ struct bfd_hash_entry root;
+
+ /* Offset of the beginning of this stub. */
+ bfd_vma offset;
+
+ /* Given the symbol's value and its section we can determine its final
+ value when building the stubs (so the stub knows where to jump. */
+ symvalue target_value;
+ asection *target_section;
+};
+
+struct elf32_hppa_stub_hash_table
+{
+ /* The hash table itself. */
+ struct bfd_hash_table root;
+
+ /* The stub BFD. */
+ bfd *stub_bfd;
+
+ /* Where to place the next stub. */
+ bfd_byte *location;
+
+ /* Current offset in the stub section. */
+ unsigned int offset;
+
+};
+
+/* Hash table for argument location information. */
+
+struct elf32_hppa_args_hash_entry
+{
+ /* Base hash table entry structure. */
+ struct bfd_hash_entry root;
+
+ /* The argument location bits for this entry. */
+ int arg_bits;
+};
+
+struct elf32_hppa_args_hash_table
+{
+ /* The hash table itself. */
+ struct bfd_hash_table root;
+};
+
+struct elf32_hppa_link_hash_entry
+{
+ struct elf_link_hash_entry root;
+};
+
+struct elf32_hppa_link_hash_table
+{
+ /* The main hash table. */
+ struct elf_link_hash_table root;
+ /* The stub hash table. */
+ struct elf32_hppa_stub_hash_table *stub_hash_table;
-static struct elf_backend_data elf_hppa_backend_data = {
- NULL /* initially, $global$ is undefined */
+ /* The argument relocation bits hash table. */
+ struct elf32_hppa_args_hash_table *args_hash_table;
+
+ /* A count of the number of output symbols. */
+ unsigned int output_symbol_count;
+
+ /* Stuff so we can handle DP relative relocations. */
+ long global_value;
+ int global_sym_defined;
};
+/* FIXME. */
+#define ARGUMENTS 0
+#define RETURN_VALUE 1
+
+/* The various argument relocations that may be performed. */
+typedef enum
+{
+ /* No relocation. */
+ NO,
+ /* Relocate 32 bits from GR to FP register. */
+ GF,
+ /* Relocate 64 bits from a GR pair to FP pair. */
+ GD,
+ /* Relocate 32 bits from FP to GR. */
+ FG,
+ /* Relocate 64 bits from FP pair to GR pair. */
+ DG,
+} arg_reloc_type;
+
+/* What is being relocated (eg which argument or the return value). */
+typedef enum
+{
+ ARG0, ARG1, ARG2, ARG3, RET,
+} arg_reloc_location;
+
+
/* ELF32/HPPA relocation support
This file contains ELF32/HPPA relocation support as specified
in the Stratus FTX/Golf Object File Format (SED-1762) dated
- November 19, 1992.
-*/
-
-/*
- Written by:
-
- Center for Software Science
- Department of Computer Science
- University of Utah
-*/
+ February 1994. */
#include "elf32-hppa.h"
+#include "hppa_stubs.h"
+
+static bfd_reloc_status_type hppa_elf_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+
+static unsigned long hppa_elf_relocate_insn
+ PARAMS ((bfd *, asection *, unsigned long, unsigned long, long,
+ long, unsigned long, unsigned long, unsigned long));
+
+static bfd_reloc_status_type hppa_elf_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd*, char **));
+
+static reloc_howto_type * elf_hppa_reloc_type_lookup
+ PARAMS ((bfd *, bfd_reloc_code_real_type));
+
+static boolean elf32_hppa_set_section_contents
+ PARAMS ((bfd *, sec_ptr, PTR, file_ptr, bfd_size_type));
+
+static void elf32_hppa_info_to_howto
+ PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
+
+static boolean elf32_hppa_backend_symbol_table_processing
+ PARAMS ((bfd *, elf_symbol_type *, unsigned int));
+
+static void elf32_hppa_backend_begin_write_processing
+ PARAMS ((bfd *, struct bfd_link_info *));
+
+static void elf32_hppa_backend_final_write_processing
+ PARAMS ((bfd *, boolean));
+
+static void add_entry_to_symext_chain
+ PARAMS ((bfd *, unsigned int, unsigned int, symext_chainS **,
+ symext_chainS **));
-/* ELF/PA stab entries */
-
-#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
-
-/* 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 */
+static void
+elf_hppa_tc_make_sections PARAMS ((bfd *, symext_chainS *));
+
+static boolean hppa_elf_is_local_label_name PARAMS ((bfd *, const char *));
+
+static boolean elf32_hppa_add_symbol_hook
+ PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
+ const char **, flagword *, asection **, bfd_vma *));
+
+static bfd_reloc_status_type elf32_hppa_bfd_final_link_relocate
+ PARAMS ((reloc_howto_type *, bfd *, bfd *, asection *,
+ bfd_byte *, bfd_vma, bfd_vma, bfd_vma, struct bfd_link_info *,
+ asection *, const char *, int));
+
+static struct bfd_link_hash_table *elf32_hppa_link_hash_table_create
+ PARAMS ((bfd *));
+
+static struct bfd_hash_entry *
+elf32_hppa_stub_hash_newfunc
+ PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
+
+static struct bfd_hash_entry *
+elf32_hppa_args_hash_newfunc
+ PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
+
+static boolean
+elf32_hppa_relocate_section
+ PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
+ bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
+
+static boolean
+elf32_hppa_stub_hash_table_init
+ PARAMS ((struct elf32_hppa_stub_hash_table *, bfd *,
+ struct bfd_hash_entry *(*) PARAMS ((struct bfd_hash_entry *,
+ struct bfd_hash_table *,
+ const char *))));
+
+static boolean
+elf32_hppa_build_one_stub PARAMS ((struct bfd_hash_entry *, PTR));
+
+static boolean
+elf32_hppa_read_symext_info
+ PARAMS ((bfd *, Elf_Internal_Shdr *, struct elf32_hppa_args_hash_table *,
+ Elf_Internal_Sym *));
+
+static unsigned int elf32_hppa_size_of_stub
+ PARAMS ((unsigned int, unsigned int, bfd_vma, bfd_vma, const char *));
+
+static boolean elf32_hppa_arg_reloc_needed
+ PARAMS ((unsigned int, unsigned int, arg_reloc_type []));
+
+static void elf32_hppa_name_of_stub
+ PARAMS ((unsigned int, unsigned int, bfd_vma, bfd_vma, char *));
+
+static boolean elf32_hppa_size_symext PARAMS ((struct bfd_hash_entry *, PTR));
+
+static boolean elf32_hppa_link_output_symbol_hook
+ PARAMS ((bfd *, struct bfd_link_info *, const char *,
+ Elf_Internal_Sym *, asection *));
+
+/* ELF/PA relocation howto entries. */
+
+static reloc_howto_type elf_hppa_howto_table[ELF_HOWTO_TABLE_SIZE] =
+{
+ {R_PARISC_NONE, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_NONE"},
+ /* The values in DIR32 are to placate the check in
+ _bfd_stab_section_find_nearest_line. */
+ {R_PARISC_DIR32, 0, 2, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DIR32", false, 0, 0xffffffff, false},
+ {R_PARISC_DIR21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DIR21L"},
+ {R_PARISC_DIR17R, 0, 0, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DIR17R"},
+ {R_PARISC_DIR17F, 0, 0, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DIR17F"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DIR14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DIR14R"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_PCREL21L, 0, 0, 21, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL21L"},
+ {R_PARISC_PCREL17R, 0, 0, 17, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL17R"},
+ {R_PARISC_PCREL17F, 0, 0, 17, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL17F"},
+ {R_PARISC_PCREL17C, 0, 0, 17, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL17C"},
+ {R_PARISC_PCREL14R, 0, 0, 14, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL14R"},
+ {R_PARISC_PCREL14F, 0, 0, 14, true, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PCREL14F"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DPREL21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DPREL21L"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DPREL14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DPREL14R"},
+ {R_PARISC_DPREL14F, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DPREL14F"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DLTREL21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTREL21L"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DLTREL14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTREL14R"},
+ {R_PARISC_DLTREL14F, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTREL14F"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DLTIND21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTIND21L"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DLTIND14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTIND14R"},
+ {R_PARISC_DLTIND14F, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_DLTIND14F"},
+
+ {R_PARISC_SETBASE, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_SETBASE"},
+ {R_PARISC_BASEREL32, 0, 0, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL32"},
+ {R_PARISC_BASEREL21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL21L"},
+ {R_PARISC_BASEREL17R, 0, 0, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL17R"},
+ {R_PARISC_BASEREL17F, 0, 0, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL17F"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_BASEREL14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL14R"},
+ {R_PARISC_BASEREL14F, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_BASEREL14F"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_TEXTREL32, 0, 0, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_TEXTREL32"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_DATAREL32, 0, 0, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_PLABEL32, 0, 0, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLABEL32"},
+ {R_PARISC_PLABEL21L, 0, 0, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLABEL21L"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_PLABEL14R, 0, 0, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLABEL14R"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_PLTIND21L, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLTIND21L"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_UNIMPLEMENTED"},
+ {R_PARISC_PLTIND14R, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLTIND14R"},
+ {R_PARISC_PLTIND14F, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_PLTIND14F"},
+
+
+ {R_PARISC_COPY, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_COPY"},
+ {R_PARISC_GLOB_DAT, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_GLOB_DAT"},
+ {R_PARISC_JMP_SLOT, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_JMP_SLOT"},
+ {R_PARISC_RELATIVE, 0, 0, 0, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_PARISC_RELATIVE"},
+
+ {R_PARISC_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_dont, NULL, "R_PARISC_UNIMPLEMENTED"},
};
+/* Where (what register type) is an argument comming from? */
+typedef enum
+{
+ AR_NO,
+ AR_GR,
+ AR_FR,
+ AR_FU,
+ AR_FPDBL1,
+ AR_FPDBL2,
+} arg_location;
+
+/* Horizontal represents the callee's argument location information,
+ vertical represents caller's argument location information. Value at a
+ particular X,Y location represents what (if any) argument relocation
+ needs to be performed to make caller and callee agree. */
+
+static CONST arg_reloc_type arg_mismatches[6][6] =
+{
+ {NO, NO, NO, NO, NO, NO},
+ {NO, NO, GF, NO, GD, NO},
+ {NO, FG, NO, NO, NO, NO},
+ {NO, NO, NO, NO, NO, NO},
+ {NO, DG, NO, NO, NO, NO},
+ {NO, DG, NO, NO, NO, NO},
+};
+
+/* Likewise, but reversed for the return value. */
+static CONST arg_reloc_type ret_mismatches[6][6] =
+{
+ {NO, NO, NO, NO, NO, NO},
+ {NO, NO, FG, NO, DG, NO},
+ {NO, GF, NO, NO, NO, NO},
+ {NO, NO, NO, NO, NO, NO},
+ {NO, GD, NO, NO, NO, NO},
+ {NO, GD, NO, NO, NO, NO},
+};
+
+/* Misc static crud for symbol extension records. */
+static symext_chainS *symext_rootP;
+static symext_chainS *symext_lastP;
+static bfd_size_type symext_chain_size;
+
+/* FIXME: We should be able to try this static variable! */
+static bfd_byte *symextn_contents;
+
+
+/* For linker stub hash tables. */
+#define elf32_hppa_stub_hash_lookup(table, string, create, copy) \
+ ((struct elf32_hppa_stub_hash_entry *) \
+ bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
+
+#define elf32_hppa_stub_hash_traverse(table, func, info) \
+ (bfd_hash_traverse \
+ (&(table)->root, \
+ (boolean (*) PARAMS ((struct bfd_hash_entry *, PTR))) (func), \
+ (info)))
+
+/* For linker args hash tables. */
+#define elf32_hppa_args_hash_lookup(table, string, create, copy) \
+ ((struct elf32_hppa_args_hash_entry *) \
+ bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
+
+#define elf32_hppa_args_hash_traverse(table, func, info) \
+ (bfd_hash_traverse \
+ (&(table)->root, \
+ (boolean (*) PARAMS ((struct bfd_hash_entry *, PTR))) (func), \
+ (info)))
+
+#define elf32_hppa_args_hash_table_init(table, newfunc) \
+ (bfd_hash_table_init \
+ (&(table)->root, \
+ (struct bfd_hash_entry *(*) PARAMS ((struct bfd_hash_entry *, \
+ struct bfd_hash_table *, \
+ const char *))) (newfunc)))
+
+/* For HPPA linker hash table. */
+
+#define elf32_hppa_link_hash_lookup(table, string, create, copy, follow)\
+ ((struct elf32_hppa_link_hash_entry *) \
+ elf_link_hash_lookup (&(table)->root, (string), (create), \
+ (copy), (follow)))
+
+#define elf32_hppa_link_hash_traverse(table, func, info) \
+ (elf_link_hash_traverse \
+ (&(table)->root, \
+ (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
+ (info)))
+
+/* Get the PA ELF linker hash table from a link_info structure. */
+
+#define elf32_hppa_hash_table(p) \
+ ((struct elf32_hppa_link_hash_table *) ((p)->hash))
+
+
+/* Extract specific argument location bits for WHICH from
+ the full argument location in AR. */
+#define EXTRACT_ARBITS(ar, which) ((ar) >> (8 - ((which) * 2))) & 3
+
+/* Assorted hash table functions. */
+
+/* Initialize an entry in the stub hash table. */
+
+static struct bfd_hash_entry *
+elf32_hppa_stub_hash_newfunc (entry, table, string)
+ struct bfd_hash_entry *entry;
+ struct bfd_hash_table *table;
+ const char *string;
+{
+ struct elf32_hppa_stub_hash_entry *ret;
+
+ ret = (struct elf32_hppa_stub_hash_entry *) entry;
+
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (ret == NULL)
+ ret = ((struct elf32_hppa_stub_hash_entry *)
+ bfd_hash_allocate (table,
+ sizeof (struct elf32_hppa_stub_hash_entry)));
+ if (ret == NULL)
+ return NULL;
+
+ /* Call the allocation method of the superclass. */
+ ret = ((struct elf32_hppa_stub_hash_entry *)
+ bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
+
+ if (ret)
+ {
+ /* Initialize the local fields. */
+ ret->offset = 0;
+ ret->target_value = 0;
+ ret->target_section = NULL;
+ }
+
+ return (struct bfd_hash_entry *) ret;
+}
+
+/* Initialize a stub hash table. */
+
+static boolean
+elf32_hppa_stub_hash_table_init (table, stub_bfd, newfunc)
+ struct elf32_hppa_stub_hash_table *table;
+ bfd *stub_bfd;
+ struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
+ struct bfd_hash_table *,
+ const char *));
+{
+ table->offset = 0;
+ table->location = 0;
+ table->stub_bfd = stub_bfd;
+ return (bfd_hash_table_init (&table->root, newfunc));
+}
+
+/* Initialize an entry in the argument location hash table. */
+
+static struct bfd_hash_entry *
+elf32_hppa_args_hash_newfunc (entry, table, string)
+ struct bfd_hash_entry *entry;
+ struct bfd_hash_table *table;
+ const char *string;
+{
+ struct elf32_hppa_args_hash_entry *ret;
+
+ ret = (struct elf32_hppa_args_hash_entry *) entry;
+
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (ret == NULL)
+ ret = ((struct elf32_hppa_args_hash_entry *)
+ bfd_hash_allocate (table,
+ sizeof (struct elf32_hppa_args_hash_entry)));
+ if (ret == NULL)
+ return NULL;
+
+ /* Call the allocation method of the superclass. */
+ ret = ((struct elf32_hppa_args_hash_entry *)
+ bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
+
+ /* Initialize the local fields. */
+ if (ret)
+ ret->arg_bits = 0;
+
+ return (struct bfd_hash_entry *) ret;
+}
+
+/* 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;
+
+ ret = ((struct elf32_hppa_link_hash_table *)
+ bfd_alloc (abfd, sizeof (struct elf32_hppa_link_hash_table)));
+ if (ret == NULL)
+ return NULL;
+ if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
+ _bfd_elf_link_hash_newfunc))
+ {
+ bfd_release (abfd, ret);
+ return NULL;
+ }
+ ret->stub_hash_table = NULL;
+ ret->args_hash_table = NULL;
+ ret->output_symbol_count = 0;
+ ret->global_value = 0;
+ ret->global_sym_defined = 0;
+
+ return &ret->root.root;
+}
+
+/* Relocate the given INSN given the various input parameters.
+
+ FIXME: endianness and sizeof (long) issues abound here. */
+
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)
+hppa_elf_relocate_insn (abfd, input_sect, insn, address, sym_value,
+ r_addend, r_format, r_field, pcrel)
+ bfd *abfd;
+ asection *input_sect;
+ unsigned long insn;
+ unsigned long address;
+ long sym_value;
+ long r_addend;
+ unsigned long r_format;
+ unsigned long r_field;
+ unsigned long pcrel;
{
- unsigned long const_part; /* part of the instruction that does not change */
- unsigned long rebuilt_part;
+ unsigned char opcode = get_opcode (insn);
+ long constant_value;
+
+ switch (opcode)
+ {
+ case LDO:
+ case LDB:
+ case LDH:
+ case LDW:
+ case LDWM:
+ case STB:
+ case STH:
+ case STW:
+ case STWM:
+ case COMICLR:
+ case SUBI:
+ case ADDIT:
+ case ADDI:
+ case LDIL:
+ case ADDIL:
+ constant_value = HPPA_R_CONSTANT (r_addend);
+
+ if (pcrel)
+ sym_value -= address;
+
+ sym_value = hppa_field_adjust (sym_value, constant_value, r_field);
+ return hppa_rebuild_insn (abfd, insn, sym_value, r_format);
+
+ case BL:
+ case BE:
+ case BLE:
+ /* XXX computing constant_value is not needed??? */
+ constant_value = assemble_17 ((insn & 0x001f0000) >> 16,
+ (insn & 0x00001ffc) >> 2,
+ insn & 1);
+
+ constant_value = (constant_value << 15) >> 15;
+ if (pcrel)
+ {
+ sym_value -=
+ address + input_sect->output_offset
+ + input_sect->output_section->vma;
+ sym_value = hppa_field_adjust (sym_value, -8, r_field);
+ }
+ else
+ sym_value = hppa_field_adjust (sym_value, constant_value, r_field);
- switch ( r_format ) {
- case 11: {
- unsigned w1, w;
+ return hppa_rebuild_insn (abfd, insn, sym_value >> 2, r_format);
- const_part = insn & 0xffffe002;
- dis_assemble_12(value,&w1,&w);
- rebuilt_part = (w1 << 2) | w;
- return const_part | rebuilt_part;
+ default:
+ if (opcode == 0)
+ {
+ constant_value = HPPA_R_CONSTANT (r_addend);
+
+ if (pcrel)
+ sym_value -= address;
+
+ return hppa_field_adjust (sym_value, constant_value, r_field);
}
+ else
+ abort ();
+ }
+}
- case 12: {
- unsigned w1, w;
+/* Relocate an HPPA ELF section. */
+
+static boolean
+elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section,
+ contents, relocs, local_syms, local_sections)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ bfd *input_bfd;
+ asection *input_section;
+ bfd_byte *contents;
+ Elf_Internal_Rela *relocs;
+ Elf_Internal_Sym *local_syms;
+ asection **local_sections;
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Rela *rel;
+ Elf_Internal_Rela *relend;
+
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+
+ rel = relocs;
+ relend = relocs + input_section->reloc_count;
+ for (; rel < relend; rel++)
+ {
+ int r_type;
+ reloc_howto_type *howto;
+ unsigned long r_symndx;
+ struct elf_link_hash_entry *h;
+ Elf_Internal_Sym *sym;
+ asection *sym_sec;
+ bfd_vma relocation;
+ bfd_reloc_status_type r;
+ const char *sym_name;
+
+ r_type = ELF32_R_TYPE (rel->r_info);
+ if (r_type < 0 || r_type >= (int) R_PARISC_UNIMPLEMENTED)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ howto = elf_hppa_howto_table + r_type;
+
+ r_symndx = ELF32_R_SYM (rel->r_info);
+
+ if (info->relocateable)
+ {
+ /* This is a relocateable link. We don't have to change
+ anything, unless the reloc is against a section symbol,
+ in which case we have to adjust according to where the
+ section symbol winds up in the output section. */
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+ {
+ sym_sec = local_sections[r_symndx];
+ rel->r_addend += sym_sec->output_offset;
+ }
+ }
- const_part = insn & 0xffffe002;
- dis_assemble_12(value,&w1,&w);
- rebuilt_part = (w1 << 2) | w;
- return const_part | rebuilt_part;
+ continue;
}
- case 14:
- const_part = insn & 0xffffc000;
- low_sign_unext(value,14,&rebuilt_part);
- return const_part | rebuilt_part;
+ /* This is a final link. */
+ h = NULL;
+ sym = NULL;
+ sym_sec = NULL;
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ sym_sec = local_sections[r_symndx];
+ relocation = ((ELF_ST_TYPE (sym->st_info) == STT_SECTION
+ ? 0 : sym->st_value)
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+ }
+ else
+ {
+ long indx;
+
+ indx = r_symndx - symtab_hdr->sh_info;
+ h = elf_sym_hashes (input_bfd)[indx];
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ {
+ sym_sec = h->root.u.def.section;
+ relocation = (h->root.u.def.value
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+ }
+ else if (h->root.type == bfd_link_hash_undefweak)
+ relocation = 0;
+ else
+ {
+ if (!((*info->callbacks->undefined_symbol)
+ (info, h->root.root.string, input_bfd,
+ input_section, rel->r_offset)))
+ return false;
+ break;
+ }
+ }
- case 17: {
- unsigned w1, w2, w;
+ if (h != NULL)
+ sym_name = h->root.root.string;
+ else
+ {
+ sym_name = bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ sym->st_name);
+ if (sym_name == NULL)
+ return false;
+ if (*sym_name == '\0')
+ sym_name = bfd_section_name (input_bfd, sym_sec);
+ }
- const_part = insn & 0xffe0e002;
- dis_assemble_17(value,&w1,&w2,&w);
- rebuilt_part = (w2 << 2) | (w1 << 16) | w;
- return const_part | rebuilt_part;
+ /* If args_hash_table is NULL, then we have encountered some
+ kind of link error (ex. undefined symbols). Do not try to
+ apply any relocations, continue the loop so we can notify
+ the user of several errors in a single attempted link. */
+ if (elf32_hppa_hash_table (info)->args_hash_table == NULL)
+ continue;
+
+ r = elf32_hppa_bfd_final_link_relocate (howto, input_bfd, output_bfd,
+ input_section, contents,
+ rel->r_offset, relocation,
+ rel->r_addend, info, sym_sec,
+ sym_name, h == NULL);
+
+ if (r != bfd_reloc_ok)
+ {
+ switch (r)
+ {
+ /* This can happen for DP relative relocs if $global$ is
+ undefined. This is a panic situation so we don't try
+ to continue. */
+ case bfd_reloc_undefined:
+ case bfd_reloc_notsupported:
+ if (!((*info->callbacks->undefined_symbol)
+ (info, "$global$", input_bfd,
+ input_section, rel->r_offset)))
+ return false;
+ return false;
+ case bfd_reloc_dangerous:
+ {
+ /* We use this return value to indicate that we performed
+ a "dangerous" relocation. This doesn't mean we did
+ the wrong thing, it just means there may be some cleanup
+ that needs to be done here.
+
+ In particular we had to swap the last call insn and its
+ delay slot. If the delay slot insn needed a relocation,
+ then we'll need to adjust the next relocation entry's
+ offset to account for the fact that the insn moved.
+
+ This hair wouldn't be necessary if we inserted stubs
+ between procedures and used a "bl" to get to the stub. */
+ if (rel != relend)
+ {
+ Elf_Internal_Rela *next_rel = rel + 1;
+
+ if (rel->r_offset + 4 == next_rel->r_offset)
+ next_rel->r_offset -= 4;
+ }
+ break;
+ }
+ default:
+ case bfd_reloc_outofrange:
+ case bfd_reloc_overflow:
+ {
+ if (!((*info->callbacks->reloc_overflow)
+ (info, sym_name, howto->name, (bfd_vma) 0,
+ input_bfd, input_section, rel->r_offset)))
+ return false;
+ }
+ break;
+ }
}
+ }
+
+ return true;
+}
+
+/* Return one (or more) BFD relocations which implement the base
+ relocation with modifications based on format and field. */
+
+elf32_hppa_reloc_type **
+hppa_elf_gen_reloc_type (abfd, base_type, format, field, ignore, sym)
+ bfd *abfd;
+ elf32_hppa_reloc_type base_type;
+ int format;
+ int field;
+ int ignore;
+ asymbol *sym;
+{
+ elf32_hppa_reloc_type *finaltype;
+ elf32_hppa_reloc_type **final_types;
+
+ /* Allocate slots for the BFD relocation. */
+ final_types = ((elf32_hppa_reloc_type **)
+ bfd_alloc (abfd, sizeof (elf32_hppa_reloc_type *) * 2));
+ if (final_types == NULL)
+ return NULL;
+
+ /* Allocate space for the relocation itself. */
+ finaltype = ((elf32_hppa_reloc_type *)
+ bfd_alloc (abfd, sizeof (elf32_hppa_reloc_type)));
+ if (finaltype == NULL)
+ return NULL;
+
+ /* Some reasonable defaults. */
+ final_types[0] = finaltype;
+ final_types[1] = NULL;
+
+#define final_type finaltype[0]
+
+ final_type = base_type;
+
+ /* Just a tangle of nested switch statements to deal with the braindamage
+ that a different field selector means a completely different relocation
+ for PA ELF. */
+ switch (base_type)
+ {
+ case R_HPPA:
+ case R_HPPA_ABS_CALL:
+ switch (format)
+ {
+ case 14:
+ switch (field)
+ {
+ case e_rsel:
+ case e_rrsel:
+ final_type = R_PARISC_DIR14R;
+ break;
+ case e_rtsel:
+ final_type = R_PARISC_DLTREL14R;
+ break;
+ case e_tsel:
+ final_type = R_PARISC_DLTREL14F;
+ break;
+ case e_rpsel:
+ final_type = R_PARISC_PLABEL14R;
+ break;
+ default:
+ return NULL;
+ }
+ break;
+
+ case 17:
+ switch (field)
+ {
+ case e_fsel:
+ final_type = R_PARISC_DIR17F;
+ break;
+ case e_rsel:
+ case e_rrsel:
+ final_type = R_PARISC_DIR17R;
+ break;
+ default:
+ return NULL;
+ }
+ break;
case 21:
- const_part = insn & 0xffe00000;
- dis_assemble_21(value,&rebuilt_part);
- return const_part | rebuilt_part;
+ switch (field)
+ {
+ case e_lsel:
+ case e_lrsel:
+ final_type = R_PARISC_DIR21L;
+ break;
+ case e_ltsel:
+ final_type = R_PARISC_DLTREL21L;
+ break;
+ case e_lpsel:
+ final_type = R_PARISC_PLABEL21L;
+ break;
+ default:
+ return NULL;
+ }
+ break;
case 32:
- const_part = 0;
- return value;
-
+ switch (field)
+ {
+ case e_fsel:
+ final_type = R_PARISC_DIR32;
+ break;
+ case e_psel:
+ final_type = R_PARISC_PLABEL32;
+ break;
+ default:
+ return NULL;
+ }
+ break;
+
default:
- 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);
+ return NULL;
}
- return insn;
-}
+ break;
-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)
-{
- 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);
- return hppa_elf_rebuild_insn(abfd,insn,sym_value >> 2,r_type,r_field, r_format);
+ case R_HPPA_GOTOFF:
+ switch (format)
+ {
+ case 14:
+ switch (field)
+ {
+ case e_rsel:
+ case e_rrsel:
+ final_type = R_PARISC_DPREL14R;
+ break;
+ case e_fsel:
+ final_type = R_PARISC_DPREL14F;
+ break;
+ default:
+ return NULL;
+ }
+ break;
+ case 21:
+ switch (field)
+ {
+ case e_lrsel:
+ case e_lsel:
+ final_type = R_PARISC_DPREL21L;
+ break;
default:
- 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);
- }
+ return NULL;
+ }
+ break;
+
+ default:
+ return NULL;
}
+ break;
+
+
+ case R_HPPA_PCREL_CALL:
+ switch (format)
+ {
+ case 14:
+ switch (field)
+ {
+ case e_rsel:
+ case e_rrsel:
+ final_type = R_PARISC_PCREL14R;
+ break;
+ case e_fsel:
+ final_type = R_PARISC_PCREL14F;
+ break;
+ default:
+ return NULL;
+ }
+ break;
+
+ case 17:
+ switch (field)
+ {
+ case e_rsel:
+ case e_rrsel:
+ final_type = R_PARISC_PCREL17R;
+ break;
+ case e_fsel:
+ final_type = R_PARISC_PCREL17F;
+ break;
+ default:
+ return NULL;
+ }
+ break;
+
+ case 21:
+ switch (field)
+ {
+ case e_lsel:
+ case e_lrsel:
+ final_type = R_PARISC_PCREL21L;
+ break;
+ default:
+ return NULL;
+ }
+ break;
+
+ default:
+ return NULL;
+ }
+ break;
+
+ default:
+ return NULL;
+ }
+
+ return final_types;
+}
+
+#undef final_type
+
+/* Set the contents of a particular section at a particular location. */
+
+static boolean
+elf32_hppa_set_section_contents (abfd, section, location, offset, count)
+ bfd *abfd;
+ sec_ptr section;
+ PTR location;
+ file_ptr offset;
+ bfd_size_type count;
+{
+ /* Ignore write requests for the symbol extension section until we've
+ had the chance to rebuild it ourselves. */
+ if (!strcmp (section->name, ".PARISC.symextn") && !symext_chain_size)
+ return true;
+ else
+ return _bfd_elf_set_section_contents (abfd, section, location,
+ offset, count);
}
+/* Translate from an elf into field into a howto relocation pointer. */
+
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)
+elf32_hppa_info_to_howto (abfd, cache_ptr, dst)
+ bfd *abfd;
+ arelent *cache_ptr;
+ Elf32_Internal_Rela *dst;
{
- 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;
+ BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_PARISC_UNIMPLEMENTED);
+ cache_ptr->howto = &elf_hppa_howto_table[ELF32_R_TYPE (dst->r_info)];
+}
- 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;
- }
+
+/* Actually perform a relocation. NOTE this is (mostly) superceeded
+ by elf32_hppa_bfd_final_link_relocate which is called by the new
+ fast linker. */
+
+static bfd_reloc_status_type
+hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
+ error_message)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol_in;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message;
+{
+ /* It is no longer valid to call hppa_elf_reloc when creating
+ a final executable. */
+ if (output_bfd)
+ {
+ reloc_entry->address += input_section->output_offset;
+
+ /* Work around lossage in generic elf code to write relocations.
+ (maps different section symbols into the same symbol index). */
+ if ((symbol_in->flags & BSF_SECTION_SYM)
+ && symbol_in->section)
+ reloc_entry->addend += symbol_in->section->output_offset;
+ return bfd_reloc_ok;
+ }
+ else
+ {
+ *error_message = (char *) "Unsupported call to hppa_elf_reloc";
+ return bfd_reloc_notsupported;
+ }
+}
+
+/* Actually perform a relocation as part of a final link. This can get
+ rather hairy when linker stubs are needed. */
+
+static bfd_reloc_status_type
+elf32_hppa_bfd_final_link_relocate (howto, input_bfd, output_bfd,
+ input_section, contents, offset, value,
+ addend, info, sym_sec, sym_name, is_local)
+ reloc_howto_type *howto;
+ bfd *input_bfd;
+ bfd *output_bfd;
+ asection *input_section;
+ bfd_byte *contents;
+ bfd_vma offset;
+ bfd_vma value;
+ bfd_vma addend;
+ struct bfd_link_info *info;
+ asection *sym_sec;
+ const char *sym_name;
+ int is_local;
+{
+ unsigned long insn;
+ unsigned long r_type = howto->type;
+ unsigned long r_format = howto->bitsize;
+ unsigned long r_field = e_fsel;
+ bfd_byte *hit_data = contents + offset;
+ boolean r_pcrel = howto->pc_relative;
+
+ insn = bfd_get_32 (input_bfd, hit_data);
+
+ /* Make sure we have a value for $global$. FIXME isn't this effectively
+ just like the gp pointer on MIPS? Can we use those routines for this
+ purpose? */
+ if (!elf32_hppa_hash_table (info)->global_sym_defined)
+ {
+ struct elf_link_hash_entry *h;
+ asection *sec;
+
+ h = elf_link_hash_lookup (elf_hash_table (info), "$global$", false,
+ false, false);
+
+ /* If there isn't a $global$, then we're in deep trouble. */
+ if (h == NULL)
+ return bfd_reloc_notsupported;
+
+ /* If $global$ isn't a defined symbol, then we're still in deep
+ trouble. */
+ if (h->root.type != bfd_link_hash_defined)
+ return bfd_reloc_undefined;
+
+ sec = h->root.u.def.section;
+ elf32_hppa_hash_table (info)->global_value = (h->root.u.def.value
+ + sec->output_section->vma
+ + sec->output_offset);
+ elf32_hppa_hash_table (info)->global_sym_defined = 1;
+ }
+
+ switch (r_type)
+ {
+ case R_PARISC_NONE:
+ break;
+
+ case R_PARISC_DIR32:
+ case R_PARISC_DIR17F:
+ case R_PARISC_PCREL17C:
+ r_field = e_fsel;
+ goto do_basic_type_1;
+ case R_PARISC_DIR21L:
+ case R_PARISC_PCREL21L:
+ r_field = e_lrsel;
+ goto do_basic_type_1;
+ case R_PARISC_DIR17R:
+ case R_PARISC_PCREL17R:
+ case R_PARISC_DIR14R:
+ case R_PARISC_PCREL14R:
+ r_field = e_rrsel;
+ goto do_basic_type_1;
+
+ /* For all the DP relative relocations, we need to examine the symbol's
+ section. If it's a code section, then "data pointer relative" makes
+ no sense. In that case we don't adjust the "value", and for 21 bit
+ addil instructions, we change the source addend register from %dp to
+ %r0. */
+ case R_PARISC_DPREL21L:
+ r_field = e_lrsel;
+ if (sym_sec->flags & SEC_CODE)
+ {
+ if ((insn & 0xfc000000) >> 26 == 0xa
+ && (insn & 0x03e00000) >> 21 == 0x1b)
+ insn &= ~0x03e00000;
+ }
+ else
+ value -= elf32_hppa_hash_table (info)->global_value;
+ goto do_basic_type_1;
+ case R_PARISC_DPREL14R:
+ r_field = e_rrsel;
+ if ((sym_sec->flags & SEC_CODE) == 0)
+ value -= elf32_hppa_hash_table (info)->global_value;
+ goto do_basic_type_1;
+ case R_PARISC_DPREL14F:
+ r_field = e_fsel;
+ if ((sym_sec->flags & SEC_CODE) == 0)
+ value -= elf32_hppa_hash_table (info)->global_value;
+ goto do_basic_type_1;
+
+ /* These cases are separate as they may involve a lot more work
+ to deal with linker stubs. */
+ case R_PARISC_PLABEL32:
+ case R_PARISC_PLABEL21L:
+ case R_PARISC_PLABEL14R:
+ case R_PARISC_PCREL17F:
+ {
+ bfd_vma location;
+ unsigned int len, caller_args, callee_args;
+ arg_reloc_type arg_reloc_types[5];
+ struct elf32_hppa_args_hash_table *args_hash_table;
+ struct elf32_hppa_args_hash_entry *args_hash;
+ char *new_name, *stub_name;
+
+ /* Get the field selector right. We'll need it in a minute. */
+ if (r_type == R_PARISC_PCREL17F
+ || r_type == R_PARISC_PLABEL32)
+ r_field = e_fsel;
+ else if (r_type == R_PARISC_PLABEL21L)
+ r_field = e_lrsel;
+ else if (r_type == R_PARISC_PLABEL14R)
+ r_field = e_rrsel;
+
+ /* Find out where we are and where we're going. */
+ location = (offset +
+ input_section->output_offset +
+ input_section->output_section->vma);
+
+ /* Now look for the argument relocation bits associated with the
+ target. */
+ len = strlen (sym_name) + 1;
+ if (is_local)
+ len += 9;
+ new_name = bfd_malloc (len);
+ if (!new_name)
+ return bfd_reloc_notsupported;
+ strcpy (new_name, sym_name);
+
+ /* Local symbols have unique IDs. */
+ if (is_local)
+ sprintf (new_name + len - 10, "_%08x", (int)sym_sec);
+
+ args_hash_table = elf32_hppa_hash_table (info)->args_hash_table;
+
+ args_hash = elf32_hppa_args_hash_lookup (args_hash_table,
+ new_name, false, false);
+ if (args_hash == NULL)
+ callee_args = 0;
+ else
+ callee_args = args_hash->arg_bits;
+
+ /* If this is a CALL relocation, then get the caller's bits
+ from the addend. Else use the magic 0x155 value for PLABELS.
+
+ Also we don't care about the destination (value) for PLABELS. */
+ if (r_type == R_PARISC_PCREL17F)
+ caller_args = HPPA_R_ARG_RELOC (addend);
+ else
+ {
+ caller_args = 0x155;
+ location = value;
+ }
+
+ /* Any kind of linker stub needed? */
+ if (((int)(value - location) > 0x3ffff)
+ || ((int)(value - location) < (int)0xfffc0000)
+ || elf32_hppa_arg_reloc_needed (caller_args, callee_args,
+ arg_reloc_types))
+ {
+ struct elf32_hppa_stub_hash_table *stub_hash_table;
+ struct elf32_hppa_stub_hash_entry *stub_hash;
+ asection *stub_section;
+
+ /* Build a name for the stub. */
+
+ len = strlen (new_name);
+ len += 23;
+ stub_name = bfd_malloc (len);
+ if (!stub_name)
+ return bfd_reloc_notsupported;
+ elf32_hppa_name_of_stub (caller_args, callee_args,
+ location, value, stub_name);
+ strcat (stub_name, new_name);
+ free (new_name);
+
+ stub_hash_table = elf32_hppa_hash_table (info)->stub_hash_table;
+
+ stub_hash
+ = elf32_hppa_stub_hash_lookup (stub_hash_table, stub_name,
+ false, false);
+
+ /* We're done with that name. */
+ free (stub_name);
+
+ /* The stub BFD only has one section. */
+ stub_section = stub_hash_table->stub_bfd->sections;
+
+ if (stub_hash != NULL)
+ {
+
+ if (r_type == R_PARISC_PCREL17F)
+ {
+ unsigned long delay_insn;
+ unsigned int opcode, rtn_reg, ldo_target_reg, ldo_src_reg;
+
+ /* We'll need to peek at the next insn. */
+ delay_insn = bfd_get_32 (input_bfd, hit_data + 4);
+ opcode = get_opcode (delay_insn);
+
+ /* We also need to know the return register for this
+ call. */
+ rtn_reg = (insn & 0x03e00000) >> 21;
+
+ ldo_src_reg = (delay_insn & 0x03e00000) >> 21;
+ ldo_target_reg = (delay_insn & 0x001f0000) >> 16;
+
+ /* Munge up the value and other parameters for
+ hppa_elf_relocate_insn. */
+
+ value = (stub_hash->offset
+ + stub_section->output_offset
+ + stub_section->output_section->vma);
+
+ r_format = 17;
+ r_field = e_fsel;
+ r_pcrel = 0;
+ addend = 0;
+
+ /* We need to peek at the delay insn and determine if
+ we'll need to swap the branch and its delay insn. */
+ if ((insn & 2)
+ || (opcode == LDO
+ && ldo_target_reg == rtn_reg)
+ || (delay_insn == 0x08000240))
+ {
+ /* No need to swap the branch and its delay slot, but
+ we do need to make sure to jump past the return
+ pointer update in the stub. */
+ value += 4;
+
+ /* If the delay insn does a return pointer adjustment,
+ then we have to make sure it stays valid. */
+ if (opcode == LDO
+ && ldo_target_reg == rtn_reg)
+ {
+ delay_insn &= 0xfc00ffff;
+ delay_insn |= ((31 << 21) | (31 << 16));
+ bfd_put_32 (input_bfd, delay_insn, hit_data + 4);
+ }
+ /* Use a BLE to reach the stub. */
+ insn = BLE_SR4_R0;
+ }
+ else
+ {
+ /* Wonderful, we have to swap the call insn and its
+ delay slot. */
+ bfd_put_32 (input_bfd, delay_insn, hit_data);
+ /* Use a BLE,n to reach the stub. */
+ insn = (BLE_SR4_R0 | 0x2);
+ bfd_put_32 (input_bfd, insn, hit_data + 4);
+ insn = hppa_elf_relocate_insn (input_bfd,
+ input_section,
+ insn, offset + 4,
+ value, addend,
+ r_format, r_field,
+ r_pcrel);
+ /* Update the instruction word. */
+ bfd_put_32 (input_bfd, insn, hit_data + 4);
+ return bfd_reloc_dangerous;
+ }
+ }
+ else
+ {
+ /* PLABEL stuff is easy. */
+
+ value = (stub_hash->offset
+ + stub_section->output_offset
+ + stub_section->output_section->vma);
+ /* We don't need the RP adjustment for PLABELs. */
+ value += 4;
+ if (r_type == R_PARISC_PLABEL32)
+ r_format = 32;
+ else if (r_type == R_PARISC_PLABEL21L)
+ r_format = 21;
+ else if (r_type == R_PARISC_PLABEL14R)
+ r_format = 14;
+
+ r_pcrel = 0;
+ addend = 0;
+ }
}
- break;
+ else
+ return bfd_reloc_notsupported;
+ }
+ goto do_basic_type_1;
+ }
+
+do_basic_type_1:
+ insn = hppa_elf_relocate_insn (input_bfd, input_section, insn,
+ offset, value, addend, r_format,
+ r_field, r_pcrel);
+ break;
+
+ /* Something we don't know how to handle. */
+ default:
+ return bfd_reloc_notsupported;
+ }
+
+ /* Update the instruction word. */
+ bfd_put_32 (input_bfd, insn, hit_data);
+ return (bfd_reloc_ok);
+}
- default:
- fprintf(stderr,
- "Unrecognized relocation type 0x%02x (fmt=%x,field=%x)\n",
- r_type, r_format, r_field);
+/* Return the address of the howto table entry to perform the CODE
+ relocation for an ARCH machine. */
+
+static reloc_howto_type *
+elf_hppa_reloc_type_lookup (abfd, code)
+ bfd *abfd;
+ bfd_reloc_code_real_type code;
+{
+ if ((int) code < (int) R_PARISC_UNIMPLEMENTED)
+ {
+ BFD_ASSERT ((int) elf_hppa_howto_table[(int) code].type == (int) code);
+ return &elf_hppa_howto_table[(int) code];
+ }
+ return NULL;
+}
+
+/* Return true if SYM represents a local label symbol. */
+
+static boolean
+hppa_elf_is_local_label_name (abfd, name)
+ bfd *abfd;
+ const char *name;
+{
+ return (name[0] == 'L' && name[1] == '$');
+}
+
+/* Do any backend specific processing when beginning to write an object
+ file. For PA ELF we need to determine the size of the symbol extension
+ section *before* any other output processing happens. */
+
+static void
+elf32_hppa_backend_begin_write_processing (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ unsigned int i;
+ asection *symextn_sec;
+
+ /* Size up the symbol extension section. */
+ if ((abfd->outsymbols == NULL
+ && info == NULL)
+ || symext_chain_size != 0)
+ return;
+
+ if (info == NULL)
+ {
+ /* We were not called from the BFD ELF linker code, so we need
+ to examine the output BFD's outsymbols.
+
+ Note we can not build the symbol extensions now as the symbol
+ map hasn't been set up. */
+ for (i = 0; i < abfd->symcount; i++)
+ {
+ elf_symbol_type *symbol = (elf_symbol_type *)abfd->outsymbols[i];
+
+ /* Only functions ever need an entry in the symbol extension
+ section. */
+ if (!(symbol->symbol.flags & BSF_FUNCTION))
+ continue;
+
+ /* And only if they specify the locations of their arguments. */
+ if (symbol->tc_data.hppa_arg_reloc == 0)
+ continue;
+
+ /* Yup. This function symbol needs an entry. */
+ symext_chain_size += 2 * ELF32_PARISC_SX_SIZE;
}
- return;
+ }
+ else if (info->relocateable == true)
+ {
+ struct elf32_hppa_args_hash_table *table;
+ table = elf32_hppa_hash_table (info)->args_hash_table;
+
+ /* Determine the size of the symbol extension section. */
+ elf32_hppa_args_hash_traverse (table,
+ elf32_hppa_size_symext,
+ &symext_chain_size);
+ }
+
+ /* Now create the section and set its size. We'll fill in the
+ contents later. */
+ symextn_sec = bfd_get_section_by_name (abfd, SYMEXTN_SECTION_NAME);
+ if (symextn_sec == NULL)
+ symextn_sec = bfd_make_section (abfd, SYMEXTN_SECTION_NAME);
+
+ bfd_set_section_flags (abfd, symextn_sec,
+ SEC_LOAD | SEC_HAS_CONTENTS | SEC_DATA);
+ symextn_sec->output_section = symextn_sec;
+ symextn_sec->output_offset = 0;
+ bfd_set_section_alignment (abfd, symextn_sec, 2);
+ bfd_set_section_size (abfd, symextn_sec, symext_chain_size);
+}
+
+/* Called for each entry in the args location hash table. For each
+ entry we bump the size pointer by 2 records (16 bytes). */
+
+static boolean
+elf32_hppa_size_symext (gen_entry, in_args)
+ struct bfd_hash_entry *gen_entry;
+ PTR in_args;
+{
+ bfd_size_type *sizep = (bfd_size_type *)in_args;
+
+ *sizep += 2 * ELF32_PARISC_SX_SIZE;
+ return true;
+}
+
+/* Backend routine called by the linker for each output symbol.
+
+ For PA ELF we use this opportunity to add an appropriate entry
+ to the symbol extension chain for function symbols. */
+
+static boolean
+elf32_hppa_link_output_symbol_hook (abfd, info, name, sym, section)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ const char *name;
+ Elf_Internal_Sym *sym;
+ asection *section;
+{
+ char *new_name;
+ unsigned int len, index;
+ struct elf32_hppa_args_hash_table *args_hash_table;
+ struct elf32_hppa_args_hash_entry *args_hash;
+
+ /* If the args hash table is NULL, then we've encountered an error
+ of some sorts (for example, an undefined symbol). In that case
+ we've got nothing else to do.
+
+ NOTE: elf_link_output_symbol will abort if we return false here! */
+ if (elf32_hppa_hash_table (info)->args_hash_table == NULL)
+ return true;
+
+ index = elf32_hppa_hash_table (info)->output_symbol_count++;
+
+ /* We need to look up this symbol in the args hash table to see if
+ it has argument relocation bits. */
+ if (ELF_ST_TYPE (sym->st_info) != STT_FUNC)
+ return true;
+
+ /* We know it's a function symbol of some kind. */
+ len = strlen (name) + 1;
+ if (ELF_ST_BIND (sym->st_info) == STB_LOCAL)
+ len += 9;
+
+ new_name = bfd_malloc (len);
+ if (new_name == NULL)
+ return false;
+
+ strcpy (new_name, name);
+ if (ELF_ST_BIND (sym->st_info) == STB_LOCAL)
+ sprintf (new_name + len - 10, "_%08x", (int)section);
+
+ /* Now that we have the unique name, we can look it up in the
+ args hash table. */
+ args_hash_table = elf32_hppa_hash_table (info)->args_hash_table;
+ args_hash = elf32_hppa_args_hash_lookup (args_hash_table, new_name,
+ false, false);
+ free (new_name);
+ if (args_hash == NULL)
+ return true;
+
+ /* We know this symbol has arg reloc bits. */
+ add_entry_to_symext_chain (abfd, args_hash->arg_bits,
+ index, &symext_rootP, &symext_lastP);
+ return true;
}
-/* 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;
+/* Perform any processing needed late in the object file writing process.
+ For PA ELF we build and set the contents of the symbol extension
+ section. */
+
+static void
+elf32_hppa_backend_final_write_processing (abfd, linker)
+ bfd *abfd;
+ boolean linker;
+{
+ asection *symextn_sec;
+ unsigned int i;
+
+ /* Now build the symbol extension section. */
+ if (symext_chain_size == 0)
+ return;
+
+ if (! linker)
+ {
+ /* We were not called from the backend linker, so we still need
+ to build the symbol extension chain.
+
+ Look at each symbol, adding the appropriate information to the
+ symbol extension section list as necessary. */
+ for (i = 0; i < abfd->symcount; i++)
+ {
+ elf_symbol_type *symbol = (elf_symbol_type *) abfd->outsymbols[i];
+
+ /* Only functions ever need an entry in the symbol extension
+ section. */
+ if (!(symbol->symbol.flags & BSF_FUNCTION))
+ continue;
+
+ /* And only if they specify the locations of their arguments. */
+ if (symbol->tc_data.hppa_arg_reloc == 0)
+ continue;
+
+ /* Add this symbol's information to the chain. */
+ add_entry_to_symext_chain (abfd, symbol->tc_data.hppa_arg_reloc,
+ symbol->symbol.udata.i, &symext_rootP,
+ &symext_lastP);
}
- else {
- relocation = symbol->value +
- symbol->section->output_section->vma +
- symbol->section->output_offset;
- }
+ }
- return(relocation);
+ /* Now fill in the contents of the symbol extension section. */
+ elf_hppa_tc_make_sections (abfd, symext_rootP);
+
+ /* And attach that as the section's contents. */
+ symextn_sec = bfd_get_section_by_name (abfd, SYMEXTN_SECTION_NAME);
+ if (symextn_sec == (asection *) 0)
+ abort();
+
+ symextn_sec->contents = (void *)symextn_contents;
+
+ bfd_set_section_contents (abfd, symextn_sec, symextn_sec->contents,
+ symextn_sec->output_offset, symextn_sec->_raw_size);
}
-/* 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). */
+/* Update the symbol extention chain to include the symbol pointed to
+ by SYMBOLP if SYMBOLP is a function symbol. Used internally and by GAS. */
+
+static void
+add_entry_to_symext_chain (abfd, arg_reloc, sym_idx, symext_root, symext_last)
+ bfd *abfd;
+ unsigned int arg_reloc;
+ unsigned int sym_idx;
+ symext_chainS **symext_root;
+ symext_chainS **symext_last;
+{
+ symext_chainS *symextP;
+
+ /* Allocate memory and initialize this entry. */
+ symextP = (symext_chainS *) bfd_alloc (abfd, sizeof (symext_chainS) * 2);
+ if (!symextP)
+ abort(); /* FIXME */
+
+ symextP[0].entry = ELF32_PARISC_SX_WORD (PARISC_SXT_SYMNDX, sym_idx);
+ symextP[0].next = &symextP[1];
+
+ symextP[1].entry = ELF32_PARISC_SX_WORD (PARISC_SXT_ARG_RELOC, arg_reloc);
+ symextP[1].next = NULL;
+
+ /* Now update the chain itself so it can be walked later to build
+ the symbol extension section. */
+ if (*symext_root == NULL)
+ {
+ *symext_root = &symextP[0];
+ *symext_last = &symextP[1];
+ }
+ else
+ {
+ (*symext_last)->next = &symextP[0];
+ *symext_last = &symextP[1];
+ }
+}
-/* NOTE: XXX the T, TR, TL, P, PR, and PL expression prefixes are not */
-/* handled yet. */
+/* Build the symbol extension section. */
static void
- hppa_elf_gen_reloc_error(base_type,fmt,field)
-elf32_hppa_reloc_type base_type;
-int fmt;
-int field;
+elf_hppa_tc_make_sections (abfd, symext_root)
+ bfd *abfd;
+ symext_chainS *symext_root;
{
- fprintf(stderr, "undefined relocation: base=0x%x,fmt=0x%x,field=0x%x\n",
- base_type, fmt, field);
+ symext_chainS *symextP;
+ unsigned int i;
+ asection *symextn_sec;
+
+ symextn_sec = bfd_get_section_by_name (abfd, SYMEXTN_SECTION_NAME);
+
+ /* Grab some memory for the contents of the symbol extension section
+ itself. */
+ symextn_contents = (bfd_byte *) bfd_zalloc (abfd,
+ symextn_sec->_raw_size);
+ if (!symextn_contents)
+ abort(); /* FIXME */
+
+ /* Fill in the contents of the symbol extension chain. */
+ for (i = 0, symextP = symext_root; symextP; symextP = symextP->next, ++i)
+ ELF32_PARISC_SX_PUT (abfd, (bfd_vma) symextP->entry,
+ symextn_contents + i * ELF32_PARISC_SX_SIZE);
+
+ return;
}
-unsigned char
-hppa_elf_gen_reloc_type(base_type, format, field)
-elf32_hppa_reloc_type base_type;
-int format;
-int field;
+/* Do some PA ELF specific work after reading in the symbol table.
+ In particular attach the argument relocation from the
+ symbol extension section to the appropriate symbols. */
+
+static boolean
+elf32_hppa_backend_symbol_table_processing (abfd, esyms,symcnt)
+ bfd *abfd;
+ elf_symbol_type *esyms;
+ unsigned int symcnt;
{
-#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;
- }
- 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;
+ Elf32_Internal_Shdr *symextn_hdr =
+ bfd_elf_find_section (abfd, SYMEXTN_SECTION_NAME);
+ unsigned int i, current_sym_idx = 0;
+
+ /* If no symbol extension existed, then all symbol extension information
+ is assumed to be zero. */
+ if (symextn_hdr == NULL)
+ {
+ for (i = 0; i < symcnt; i++)
+ esyms[i].tc_data.hppa_arg_reloc = 0;
+ return (true);
+ }
+
+ /* FIXME: Why not use bfd_get_section_contents here? Also should give
+ memory back when we're done. */
+ /* Allocate a buffer of the appropriate size for the symextn section. */
+ symextn_hdr->contents = bfd_zalloc(abfd,symextn_hdr->sh_size);
+ if (!symextn_hdr->contents)
+ return false;
+
+ /* Read in the symextn section. */
+ if (bfd_seek (abfd, symextn_hdr->sh_offset, SEEK_SET) == -1)
+ return false;
+ if (bfd_read ((PTR) symextn_hdr->contents, 1, symextn_hdr->sh_size, abfd)
+ != symextn_hdr->sh_size)
+ return false;
+
+ /* Parse entries in the symbol extension section, updating the symtab
+ entries as we go */
+ for (i = 0; i < symextn_hdr->sh_size / ELF32_PARISC_SX_SIZE; i++)
+ {
+ symext_entryS se =
+ ELF32_PARISC_SX_GET (abfd,
+ ((unsigned char *)symextn_hdr->contents
+ + i * ELF32_PARISC_SX_SIZE));
+ unsigned int se_value = ELF32_PARISC_SX_VAL (se);
+ unsigned int se_type = ELF32_PARISC_SX_TYPE (se);
+
+ switch (se_type)
+ {
+ case PARISC_SXT_NULL:
+ break;
+
+ case PARISC_SXT_SYMNDX:
+ if (se_value >= symcnt)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return (false);
+ }
+ current_sym_idx = se_value - 1;
+ break;
+
+ case PARISC_SXT_ARG_RELOC:
+ esyms[current_sym_idx].tc_data.hppa_arg_reloc = se_value;
+ break;
+
+ default:
+ bfd_set_error (bfd_error_bad_value);
+ return (false);
+ }
+ }
+ return (true);
+}
+
+/* Read and attach the symbol extension information for the symbols
+ in INPUT_BFD to the argument location hash table. Handle locals
+ if DO_LOCALS is true; likewise for globals when DO_GLOBALS is true. */
+
+static boolean
+elf32_hppa_read_symext_info (input_bfd, symtab_hdr, args_hash_table, local_syms)
+ bfd *input_bfd;
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf32_hppa_args_hash_table *args_hash_table;
+ Elf_Internal_Sym *local_syms;
+{
+ asection *symextn_sec;
+ bfd_byte *contents;
+ unsigned int i, n_entries, current_index = 0;
+
+ /* Get the symbol extension section for this BFD. If no section exists
+ then there's nothing to do. Likewise if the section exists, but
+ has no contents. */
+ symextn_sec = bfd_get_section_by_name (input_bfd, SYMEXTN_SECTION_NAME);
+ if (symextn_sec == NULL)
+ return true;
+
+ /* Done separately so we can turn off SEC_HAS_CONTENTS (see below). */
+ if (symextn_sec->_raw_size == 0)
+ {
+ symextn_sec->flags &= ~SEC_HAS_CONTENTS;
+ return true;
+ }
+
+ contents = (bfd_byte *) bfd_malloc ((size_t) symextn_sec->_raw_size);
+ if (contents == NULL)
+ return false;
+
+ /* How gross. We turn off SEC_HAS_CONTENTS for the input symbol extension
+ sections to keep the generic ELF/BFD code from trying to do anything
+ with them. We have to undo that hack temporarily so that we can read
+ in the contents with the generic code. */
+ symextn_sec->flags |= SEC_HAS_CONTENTS;
+ if (bfd_get_section_contents (input_bfd, symextn_sec, contents,
+ 0, symextn_sec->_raw_size) == false)
+ {
+ symextn_sec->flags &= ~SEC_HAS_CONTENTS;
+ free (contents);
+ return false;
+ }
+
+ /* Gross. Turn off SEC_HAS_CONTENTS for the input symbol extension
+ sections (see above). */
+ symextn_sec->flags &= ~SEC_HAS_CONTENTS;
+
+ n_entries = symextn_sec->_raw_size / ELF32_PARISC_SX_SIZE;
+ for (i = 0; i < n_entries; i++)
+ {
+ symext_entryS entry =
+ ELF32_PARISC_SX_GET (input_bfd, contents + i * ELF32_PARISC_SX_SIZE);
+ unsigned int value = ELF32_PARISC_SX_VAL (entry);
+ unsigned int type = ELF32_PARISC_SX_TYPE (entry);
+ struct elf32_hppa_args_hash_entry *args_hash;
+
+ switch (type)
+ {
+ case PARISC_SXT_NULL:
+ break;
+
+ case PARISC_SXT_SYMNDX:
+ if (value >= symtab_hdr->sh_size / sizeof (Elf32_External_Sym))
+ {
+ bfd_set_error (bfd_error_bad_value);
+ free (contents);
+ return false;
+ }
+ current_index = value;
+ break;
+
+ case PARISC_SXT_ARG_RELOC:
+ if (current_index < symtab_hdr->sh_info)
+ {
+ Elf_Internal_Shdr *hdr;
+ char *new_name;
+ const char *sym_name;
+ asection *sym_sec;
+ unsigned int len;
+
+ hdr = elf_elfsections (input_bfd)[local_syms[current_index].st_shndx];
+ sym_sec = hdr->bfd_section;
+ sym_name = bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ local_syms[current_index].st_name);
+ len = strlen (sym_name) + 10;
+ new_name = bfd_malloc (len);
+ if (new_name == NULL)
+ {
+ free (contents);
+ return false;
}
- 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;
- }
- break;
- case 32:
- UNDEFINED;
- final_type = base_type;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
+ strcpy (new_name, sym_name);
+ sprintf (new_name + len - 10, "_%08x", (int)sym_sec);
+
+ /* This is a global symbol with argument location info.
+ We need to enter it into the hash table. */
+ args_hash = elf32_hppa_args_hash_lookup (args_hash_table,
+ new_name, true,
+ true);
+ free (new_name);
+ if (args_hash == NULL)
+ {
+ free (contents);
+ return false;
}
- 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;
+ args_hash->arg_bits = value;
+ break;
+ }
+ else if (current_index >= symtab_hdr->sh_info)
+ {
+ struct elf_link_hash_entry *h;
+
+ current_index -= symtab_hdr->sh_info;
+ h = elf_sym_hashes(input_bfd)[current_index];
+ /* This is a global symbol with argument location
+ information. We need to enter it into the hash table. */
+ args_hash = elf32_hppa_args_hash_lookup (args_hash_table,
+ h->root.root.string,
+ true, true);
+ if (args_hash == NULL)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ free (contents);
+ return false;
}
- 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;
- }
- break;
- case R_HPPA_UNWIND:
- final_type = R_HPPA_UNWIND_ENTRY;
- break;
- default:
- final_type = base_type;
- break;
- }
+ args_hash->arg_bits = value;
+ break;
+ }
+ else
+ break;
- return final_type;
+ default:
+ bfd_set_error (bfd_error_bad_value);
+ free (contents);
+ return false;
+ }
+ }
+ free (contents);
+ return true;
}
-/* 12.4.4. Derive format from instruction */
+/* 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;
+ struct bfd_link_info *info;
+ const Elf_Internal_Sym *sym;
+ const char **namep;
+ flagword *flagsp;
+ asection **secp;
+ bfd_vma *valp;
+{
+ *valp += (*secp)->vma;
+ return true;
+}
-/* 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. */
+/* Determine the name of the stub needed to perform a call assuming the
+ argument relocation bits for caller and callee are in CALLER and CALLEE
+ for a call from LOCATION to DESTINATION. Copy the name into STUB_NAME. */
-unsigned char
-hppa_elf_insn2fmt(type, insn)
-elf32_hppa_reloc_type type;
-unsigned long insn;
+static void
+elf32_hppa_name_of_stub (caller, callee, location, destination, stub_name)
+ unsigned int caller, callee;
+ bfd_vma location, destination;
+ char *stub_name;
{
- 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;
- }
-
- }
- return fmt;
+ arg_reloc_type arg_reloc_types[5];
+
+ if (elf32_hppa_arg_reloc_needed (caller, callee, arg_reloc_types))
+ {
+ arg_reloc_location i;
+ /* Fill in the basic template. */
+ strcpy (stub_name, "__XX_XX_XX_XX_XX_stub_");
+
+ /* Now fix the specifics. */
+ for (i = ARG0; i <= RET; i++)
+ switch (arg_reloc_types[i])
+ {
+ case NO:
+ stub_name[3 * i + 2] = 'N';
+ stub_name[3 * i + 3] = 'O';
+ break;
+ case GF:
+ stub_name[3 * i + 2] = 'G';
+ stub_name[3 * i + 3] = 'F';
+ break;
+ case FG:
+ stub_name[3 * i + 2] = 'F';
+ stub_name[3 * i + 3] = 'G';
+ break;
+ case GD:
+ stub_name[3 * i + 2] = 'G';
+ stub_name[3 * i + 3] = 'D';
+ break;
+ case DG:
+ stub_name[3 * i + 2] = 'D';
+ stub_name[3 * i + 3] = 'G';
+ break;
+ }
+ }
+ else
+ strcpy (stub_name, "_____long_branch_stub_");
}
-/* 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;
+/* Determine if an argument relocation stub is needed to perform a
+ call assuming the argument relocation bits for caller and callee
+ are in CALLER and CALLEE. Place the type of relocations (if any)
+ into stub_types_p. */
-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_arg_reloc_needed (caller, callee, stub_types)
+ unsigned int caller, callee;
+ arg_reloc_type stub_types[5];
{
- 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;
+ /* Special case for no relocations. */
+ if (caller == 0 || callee == 0)
+ return 0;
+ else
+ {
+ arg_location caller_loc[5];
+ arg_location callee_loc[5];
+
+ /* Extract the location information for the argument and return
+ value on both the caller and callee sides. */
+ caller_loc[ARG0] = EXTRACT_ARBITS (caller, ARG0);
+ callee_loc[ARG0] = EXTRACT_ARBITS (callee, ARG0);
+ caller_loc[ARG1] = EXTRACT_ARBITS (caller, ARG1);
+ callee_loc[ARG1] = EXTRACT_ARBITS (callee, ARG1);
+ caller_loc[ARG2] = EXTRACT_ARBITS (caller, ARG2);
+ callee_loc[ARG2] = EXTRACT_ARBITS (callee, ARG2);
+ caller_loc[ARG3] = EXTRACT_ARBITS (caller, ARG3);
+ callee_loc[ARG3] = EXTRACT_ARBITS (callee, ARG3);
+ caller_loc[RET] = EXTRACT_ARBITS (caller, RET);
+ callee_loc[RET] = EXTRACT_ARBITS (callee, RET);
+
+ /* Check some special combinations. This is necessary to
+ deal with double precision FP arguments. */
+ if (caller_loc[ARG0] == AR_FU || caller_loc[ARG1] == AR_FU)
+ {
+ caller_loc[ARG0] = AR_FPDBL1;
+ caller_loc[ARG1] = AR_NO;
+ }
+ if (caller_loc[ARG2] == AR_FU || caller_loc[ARG3] == AR_FU)
+ {
+ caller_loc[ARG2] = AR_FPDBL2;
+ caller_loc[ARG3] = AR_NO;
+ }
+ if (callee_loc[ARG0] == AR_FU || callee_loc[ARG1] == AR_FU)
+ {
+ callee_loc[ARG0] = AR_FPDBL1;
+ callee_loc[ARG1] = AR_NO;
+ }
+ if (callee_loc[ARG2] == AR_FU || callee_loc[ARG3] == AR_FU)
+ {
+ callee_loc[ARG2] = AR_FPDBL2;
+ callee_loc[ARG3] = AR_NO;
}
- if ( symbol_in && symbol_in->section == &bfd_und_section )
- return bfd_reloc_undefined;
+ /* Now look up any relocation needed for each argument and the
+ return value. */
+ stub_types[ARG0] = arg_mismatches[caller_loc[ARG0]][callee_loc[ARG0]];
+ stub_types[ARG1] = arg_mismatches[caller_loc[ARG1]][callee_loc[ARG1]];
+ stub_types[ARG2] = arg_mismatches[caller_loc[ARG2]][callee_loc[ARG2]];
+ stub_types[ARG3] = arg_mismatches[caller_loc[ARG3]][callee_loc[ARG3]];
+ stub_types[RET] = ret_mismatches[caller_loc[RET]][callee_loc[RET]];
+
+ return (stub_types[ARG0] != NO
+ || stub_types[ARG1] != NO
+ || stub_types[ARG2] != NO
+ || stub_types[ARG3] != NO
+ || stub_types[RET] != NO);
+ }
+}
- sym_value = get_symbol_value(symbol_in);
+/* Compute the size of the stub needed to call from LOCATION to DESTINATION
+ (a function named SYM_NAME), with argument relocation bits CALLER and
+ CALLEE. Return zero if no stub is needed to perform such a call. */
- /* compute value of $global$ if it is there. */
+static unsigned int
+elf32_hppa_size_of_stub (callee, caller, location, destination, sym_name)
+ unsigned int callee, caller;
+ bfd_vma location, destination;
+ const char *sym_name;
+{
+ arg_reloc_type arg_reloc_types[5];
+
+ /* Determine if a long branch or argument relocation stub is needed.
+ If an argument relocation stub is needed, the relocation will be
+ stored into arg_reloc_types. */
+ if (!(((int)(location - destination) > 0x3ffff)
+ || ((int)(location - destination) < (int)0xfffc0000)
+ || elf32_hppa_arg_reloc_needed (caller, callee, arg_reloc_types)))
+ return 0;
+
+ /* Some kind of stub is needed. Determine how big it needs to be.
+ First check for argument relocation stubs as they also handle
+ long calls. Then check for long calls to millicode and finally
+ the normal long calls. */
+ if (arg_reloc_types[ARG0] != NO
+ || arg_reloc_types[ARG1] != NO
+ || arg_reloc_types[ARG2] != NO
+ || arg_reloc_types[ARG3] != NO
+ || arg_reloc_types[RET] != NO)
+ {
+ /* Some kind of argument relocation stub is needed. */
+ unsigned int len = 16;
+ arg_reloc_location i;
+
+ /* Each GR or FG relocation takes 2 insns, each GD or DG
+ relocation takes 3 insns. Plus 4 more insns for the
+ RP adjustment, ldil & (be | ble) and copy. */
+ for (i = ARG0; i <= RET; i++)
+ switch (arg_reloc_types[i])
+ {
+ case GF:
+ case FG:
+ len += 8;
+ break;
+
+ case GD:
+ case DG:
+ len += 12;
+ break;
- if ( global_symbol == (asymbol *)NULL ) {
- struct elf_backend_data * bed
- = (struct elf_backend_data *)abfd->xvec->backend_data;
+ default:
+ break;
+ }
+
+ /* Extra instructions are needed if we're relocating a return value. */
+ if (arg_reloc_types[RET] != NO)
+ len += 12;
+
+ return len;
+ }
+ else if (!strncmp ("$$", sym_name, 2)
+ && strcmp ("$$dyncall", sym_name))
+ return 12;
+ else
+ return 16;
+}
- 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;
- }
+/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
+ IN_ARGS contains the stub BFD and link info pointers. */
+
+static boolean
+elf32_hppa_build_one_stub (gen_entry, in_args)
+ struct bfd_hash_entry *gen_entry;
+ PTR in_args;
+{
+ void **args = (void **)in_args;
+ bfd *stub_bfd = (bfd *)args[0];
+ struct bfd_link_info *info = (struct bfd_link_info *)args[1];
+ struct elf32_hppa_stub_hash_entry *entry;
+ struct elf32_hppa_stub_hash_table *stub_hash_table;
+ bfd_byte *loc;
+ symvalue sym_value;
+ const char *sym_name;
+
+ /* Initialize pointers to the stub hash table, the particular entry we
+ are building a stub for, and where (in memory) we should place the stub
+ instructions. */
+ entry = (struct elf32_hppa_stub_hash_entry *)gen_entry;
+ stub_hash_table = elf32_hppa_hash_table(info)->stub_hash_table;
+ loc = stub_hash_table->location;
+
+ /* Make a note of the offset within the stubs for this entry. */
+ entry->offset = stub_hash_table->offset;
+
+ /* The symbol's name starts at offset 22. */
+ sym_name = entry->root.string + 22;
+
+ sym_value = (entry->target_value
+ + entry->target_section->output_offset
+ + entry->target_section->output_section->vma);
+
+ if (strncmp ("_____long_branch_stub_", entry->root.string, 22))
+ {
+ /* This must be an argument or return value relocation stub. */
+ unsigned long insn;
+ arg_reloc_location i;
+ bfd_byte *begin_loc = loc;
+
+ /* First the return pointer adjustment. Depending on exact calling
+ sequence this instruction may be skipped. */
+ bfd_put_32 (stub_bfd, LDO_M4_R31_R31, loc);
+ loc += 4;
+
+ /* If we are relocating a return value, then we're going to have
+ to return into the stub. So we have to save off the user's
+ return pointer into the stack at RP'. */
+ if (strncmp (entry->root.string + 14, "NO", 2))
+ {
+ bfd_put_32 (stub_bfd, STW_R31_M8R30, loc);
+ loc += 4;
}
- /* 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);
+ /* Iterate over the argument relocations, emitting instructions
+ to move them around as necessary. */
+ for (i = ARG0; i <= ARG3; i++)
+ {
+ if (!strncmp (entry->root.string + 3 * i + 2, "GF", 2))
+ {
+ bfd_put_32 (stub_bfd, STW_ARG_M16R30 | ((26 - i) << 16), loc);
+ bfd_put_32 (stub_bfd, FLDW_M16R30_FARG | (4 + i), loc + 4);
+ loc += 8;
+ }
+ else if (!strncmp (entry->root.string + 3 * i + 2, "FG", 2))
+ {
+ bfd_put_32 (stub_bfd, FSTW_FARG_M16R30 | (4 + i), loc);
+ bfd_put_32 (stub_bfd, LDW_M16R30_ARG | ((26 - i) << 16), loc + 4);
+ loc += 8;
+ }
+ else if (!strncmp (entry->root.string + 3 * i + 2, "GD", 2))
+ {
+ bfd_put_32 (stub_bfd, STW_ARG_M12R30 | ((26 - i) << 16), loc);
+ bfd_put_32 (stub_bfd, STW_ARG_M16R30 | ((25 - i) << 16), loc + 4);
+ bfd_put_32 (stub_bfd, FLDD_M16R30_FARG | (5 + i), loc + 8);
+ loc += 12;
+ }
+ else if (!strncmp (entry->root.string + 3 * i + 2, "DG", 2))
+ {
+ bfd_put_32 (stub_bfd, FSTD_FARG_M16R30 | (5 + i), loc);
+ bfd_put_32 (stub_bfd, LDW_M12R30_ARG | ((26 - i) << 16), loc + 4);
+ bfd_put_32 (stub_bfd, LDW_M16R30_ARG | ((25 - i) << 16), loc + 8);
+ loc += 12;
+ }
}
- /* update the instruction word */
- bfd_put_32(abfd, insn ,hit_data);
+ /* Load the high bits of the target address into %r1. */
+ insn = hppa_rebuild_insn (stub_bfd, LDIL_R1,
+ hppa_field_adjust (sym_value, 0, e_lrsel), 21);
+ bfd_put_32 (stub_bfd, insn, loc);
+ loc += 4;
+
+ /* If we are relocating a return value, then we're going to have
+ to return into the stub, then perform the return value relocation. */
+ if (strncmp (entry->root.string + 14, "NO", 2))
+ {
+ /* To return to the stub we "ble" to the target and copy the return
+ pointer from %r31 into %r2. */
+ insn = hppa_rebuild_insn (stub_bfd,
+ BLE_SR4_R1,
+ hppa_field_adjust (sym_value, 0,
+ e_rrsel) >> 2,
+ 17);
+ bfd_put_32 (stub_bfd, insn, loc);
+ bfd_put_32 (stub_bfd, COPY_R31_R2, loc + 4);
+
+ /* Reload the return pointer for our caller from the stack. */
+ bfd_put_32 (stub_bfd, LDW_M8R30_R31, loc + 8);
+ loc += 12;
+
+ /* Perform the return value relocation. */
+ if (!strncmp (entry->root.string + 14, "GF", 2))
+ {
+ bfd_put_32 (stub_bfd, STW_ARG_M16R30 | (28 << 16), loc);
+ bfd_put_32 (stub_bfd, FLDW_M16R30_FARG | 4, loc + 4);
+ loc += 8;
+ }
+ else if (!strncmp (entry->root.string + 14, "FG", 2))
+ {
+ bfd_put_32 (stub_bfd, FSTW_FARG_M16R30 | 4, loc);
+ bfd_put_32 (stub_bfd, LDW_M16R30_ARG | (28 << 16), loc + 4);
+ loc += 8;
+ }
+ else if (!strncmp (entry->root.string + 2, "GD", 2))
+ {
+ bfd_put_32 (stub_bfd, STW_ARG_M12R30 | (28 << 16), loc);
+ bfd_put_32 (stub_bfd, STW_ARG_M16R30 | (29 << 16), loc + 4);
+ bfd_put_32 (stub_bfd, FLDD_M16R30_FARG | 4, loc + 8);
+ loc += 12;
+ }
+ else if (!strncmp (entry->root.string + 2, "DG", 2))
+ {
+ bfd_put_32 (stub_bfd, FSTD_FARG_M16R30 | 4, loc);
+ bfd_put_32 (stub_bfd, LDW_M12R30_ARG | (28 << 16), loc + 4);
+ bfd_put_32 (stub_bfd, LDW_M16R30_ARG | (29 << 16), loc + 8);
+ loc += 12;
+ }
+ /* Branch back to the user's code now. */
+ bfd_put_32 (stub_bfd, BV_N_0_R31, loc);
+ loc += 4;
+ }
+ else
+ {
+ /* No return value relocation, so we can simply "be" to the
+ target and copy out return pointer into %r2. */
+ insn = hppa_rebuild_insn (stub_bfd, BE_SR4_R1,
+ hppa_field_adjust (sym_value, 0,
+ e_rrsel) >> 2, 17);
+ bfd_put_32 (stub_bfd, insn, loc);
+ bfd_put_32 (stub_bfd, COPY_R31_R2, loc + 4);
+ loc += 8;
+ }
- return (bfd_reloc_ok);
+ /* Update the location and offsets. */
+ stub_hash_table->location += (loc - begin_loc);
+ stub_hash_table->offset += (loc - begin_loc);
+ }
+ else
+ {
+ /* Create one of two variant long branch stubs. One for $$dyncall and
+ normal calls, the other for calls to millicode. */
+ unsigned long insn;
+ int millicode_call = 0;
+
+ if (!strncmp ("$$", sym_name, 2) && strcmp ("$$dyncall", sym_name))
+ millicode_call = 1;
+
+ /* First the return pointer adjustment. Depending on exact calling
+ sequence this instruction may be skipped. */
+ bfd_put_32 (stub_bfd, LDO_M4_R31_R31, loc);
+
+ /* The next two instructions are the long branch itself. A long branch
+ is formed with "ldil" loading the upper bits of the target address
+ into a register, then branching with "be" which adds in the lower bits.
+ Long branches to millicode nullify the delay slot of the "be". */
+ insn = hppa_rebuild_insn (stub_bfd, LDIL_R1,
+ hppa_field_adjust (sym_value, 0, e_lrsel), 21);
+ bfd_put_32 (stub_bfd, insn, loc + 4);
+ insn = hppa_rebuild_insn (stub_bfd, BE_SR4_R1 | (millicode_call ? 2 : 0),
+ hppa_field_adjust (sym_value, 0, e_rrsel) >> 2,
+ 17);
+ bfd_put_32 (stub_bfd, insn, loc + 8);
+
+ if (!millicode_call)
+ {
+ /* The sequence to call this stub places the return pointer into %r31,
+ the final target expects the return pointer in %r2, so copy the
+ return pointer into the proper register. */
+ bfd_put_32 (stub_bfd, COPY_R31_R2, loc + 12);
+
+ /* Update the location and offsets. */
+ stub_hash_table->location += 16;
+ stub_hash_table->offset += 16;
+ }
+ else
+ {
+ /* Update the location and offsets. */
+ stub_hash_table->location += 12;
+ stub_hash_table->offset += 12;
+ }
+ }
+ return true;
}
-static reloc_howto_type *
-elf_hppa_reloc_type_lookup (arch, code)
- bfd_arch_info_type *arch;
- bfd_reloc_code_real_type code;
-{
- if (code < R_HPPA_UNIMPLEMENTED)
- return &elf_hppa_howto_table[code];
+/* External entry points for sizing and building linker stubs. */
- return (reloc_howto_type *)0;
+/* Build all the stubs associated with the current output file. The
+ stubs are kept in a hash table attached to the main linker hash
+ table. This is called via hppaelf_finish in the linker. */
+
+boolean
+elf32_hppa_build_stubs (stub_bfd, info)
+ bfd *stub_bfd;
+ struct bfd_link_info *info;
+{
+ /* The stub BFD only has one section. */
+ asection *stub_sec = stub_bfd->sections;
+ struct elf32_hppa_stub_hash_table *table;
+ unsigned int size;
+ void *args[2];
+
+ /* So we can pass both the BFD for the stubs and the link info
+ structure to the routine which actually builds stubs. */
+ args[0] = stub_bfd;
+ args[1] = info;
+
+ /* Allocate memory to hold the linker stubs. */
+ size = bfd_section_size (stub_bfd, stub_sec);
+ stub_sec->contents = (unsigned char *) bfd_zalloc (stub_bfd, size);
+ if (stub_sec->contents == NULL)
+ return false;
+ table = elf32_hppa_hash_table(info)->stub_hash_table;
+ table->location = stub_sec->contents;
+
+ /* Build the stubs as directed by the stub hash table. */
+ elf32_hppa_stub_hash_traverse (table, elf32_hppa_build_one_stub, args);
+
+ return true;
}
-#define elf_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
-static void
-DEFUN (elf_info_to_howto, (abfd, cache_ptr, dst),
- bfd *abfd AND
- arelent *cache_ptr AND
- Elf_Internal_Rela *dst)
+/* Determine and set the size of the stub section for a final link.
+
+ The basic idea here is to examine all the relocations looking for
+ PC-relative calls to a target that is unreachable with a "bl"
+ instruction or calls where the caller and callee disagree on the
+ location of their arguments or return value. */
+
+boolean
+elf32_hppa_size_stubs (stub_bfd, output_bfd, link_info)
+ bfd *stub_bfd;
+ bfd *output_bfd;
+ struct bfd_link_info *link_info;
{
- abort ();
+ bfd *input_bfd;
+ asection *section, *stub_sec = 0;
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Sym *local_syms, *isym, **all_local_syms;
+ Elf32_External_Sym *ext_syms, *esym;
+ unsigned int i, index, bfd_count = 0;
+ struct elf32_hppa_stub_hash_table *stub_hash_table = 0;
+ struct elf32_hppa_args_hash_table *args_hash_table = 0;
+
+ /* Create and initialize the stub hash table. */
+ stub_hash_table = ((struct elf32_hppa_stub_hash_table *)
+ bfd_malloc (sizeof (struct elf32_hppa_stub_hash_table)));
+ if (!stub_hash_table)
+ goto error_return;
+
+ if (!elf32_hppa_stub_hash_table_init (stub_hash_table, stub_bfd,
+ elf32_hppa_stub_hash_newfunc))
+ goto error_return;
+
+ /* Likewise for the argument location hash table. */
+ args_hash_table = ((struct elf32_hppa_args_hash_table *)
+ bfd_malloc (sizeof (struct elf32_hppa_args_hash_table)));
+ if (!args_hash_table)
+ goto error_return;
+
+ if (!elf32_hppa_args_hash_table_init (args_hash_table,
+ elf32_hppa_args_hash_newfunc))
+ goto error_return;
+
+ /* Attach the hash tables to the main hash table. */
+ elf32_hppa_hash_table(link_info)->stub_hash_table = stub_hash_table;
+ elf32_hppa_hash_table(link_info)->args_hash_table = args_hash_table;
+
+ /* Count the number of input BFDs. */
+ for (input_bfd = link_info->input_bfds;
+ input_bfd != NULL;
+ input_bfd = input_bfd->link_next)
+ bfd_count++;
+
+ /* We want to read in symbol extension records only once. To do this
+ we need to read in the local symbols in parallel and save them for
+ later use; so hold pointers to the local symbols in an array. */
+ all_local_syms
+ = (Elf_Internal_Sym **) bfd_malloc (sizeof (Elf_Internal_Sym *)
+ * bfd_count);
+ if (all_local_syms == NULL)
+ goto error_return;
+ memset (all_local_syms, 0, sizeof (Elf_Internal_Sym *) * bfd_count);
+
+ /* Walk over all the input BFDs adding entries to the args hash table
+ for all the external functions. */
+ for (input_bfd = link_info->input_bfds, index = 0;
+ input_bfd != NULL;
+ input_bfd = input_bfd->link_next, index++)
+ {
+ /* 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. */
+ local_syms
+ = (Elf_Internal_Sym *) bfd_malloc (symtab_hdr->sh_info
+ * sizeof (Elf_Internal_Sym));
+ if (local_syms == NULL)
+ {
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+ all_local_syms[index] = local_syms;
+
+ ext_syms
+ = (Elf32_External_Sym *) bfd_malloc (symtab_hdr->sh_info
+ * sizeof (Elf32_External_Sym));
+ if (ext_syms == NULL)
+ {
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+
+ if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
+ || bfd_read (ext_syms, 1,
+ (symtab_hdr->sh_info
+ * sizeof (Elf32_External_Sym)), input_bfd)
+ != (symtab_hdr->sh_info * sizeof (Elf32_External_Sym)))
+ {
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ free (ext_syms);
+ goto error_return;
+ }
+
+ /* Swap the local symbols in. */
+ isym = local_syms;
+ esym = ext_syms;
+ for (i = 0; i < symtab_hdr->sh_info; i++, esym++, isym++)
+ bfd_elf32_swap_symbol_in (input_bfd, esym, isym);
+
+ /* Now we can free the external symbols. */
+ free (ext_syms);
+
+ if (elf32_hppa_read_symext_info (input_bfd, symtab_hdr, args_hash_table,
+ local_syms) == false)
+ {
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+ }
+
+ /* Magic as we know the stub bfd only has one section. */
+ stub_sec = stub_bfd->sections;
+
+ /* If generating a relocateable output file, then we don't
+ have to examine the relocs. */
+ if (link_info->relocateable)
+ {
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ return true;
+ }
+
+ /* Now that we have argument location information for all the global
+ functions we can start looking for stubs. */
+ for (input_bfd = link_info->input_bfds, index = 0;
+ input_bfd != NULL;
+ input_bfd = input_bfd->link_next, index++)
+ {
+ /* We'll need the symbol table in a second. */
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ if (symtab_hdr->sh_info == 0)
+ continue;
+
+ local_syms = all_local_syms[index];
+
+ /* Walk over each section attached to the input bfd. */
+ for (section = input_bfd->sections;
+ section != NULL;
+ section = section->next)
+ {
+ Elf_Internal_Shdr *input_rel_hdr;
+ Elf32_External_Rela *external_relocs, *erelaend, *erela;
+ Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
+
+ /* If there aren't any relocs, then there's nothing to do. */
+ if ((section->flags & SEC_RELOC) == 0
+ || section->reloc_count == 0)
+ continue;
+
+ /* Allocate space for the external relocations. */
+ external_relocs
+ = ((Elf32_External_Rela *)
+ bfd_malloc (section->reloc_count
+ * sizeof (Elf32_External_Rela)));
+ if (external_relocs == NULL)
+ {
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+
+ /* Likewise for the internal relocations. */
+ internal_relocs
+ = ((Elf_Internal_Rela *)
+ bfd_malloc (section->reloc_count * sizeof (Elf_Internal_Rela)));
+ if (internal_relocs == NULL)
+ {
+ free (external_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+
+ /* Read in the external relocs. */
+ input_rel_hdr = &elf_section_data (section)->rel_hdr;
+ if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0
+ || bfd_read (external_relocs, 1, input_rel_hdr->sh_size,
+ input_bfd) != input_rel_hdr->sh_size)
+ {
+ free (external_relocs);
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+
+ /* Swap in the relocs. */
+ erela = external_relocs;
+ erelaend = erela + section->reloc_count;
+ irela = internal_relocs;
+ for (; erela < erelaend; erela++, irela++)
+ bfd_elf32_swap_reloca_in (input_bfd, erela, irela);
+
+ /* We're done with the external relocs, free them. */
+ free (external_relocs);
+
+ /* Now examine each relocation. */
+ irela = internal_relocs;
+ irelaend = irela + section->reloc_count;
+ for (; irela < irelaend; irela++)
+ {
+ long r_type, callee_args, caller_args, size_of_stub;
+ unsigned long r_index;
+ struct elf_link_hash_entry *hash;
+ struct elf32_hppa_stub_hash_entry *stub_hash;
+ struct elf32_hppa_args_hash_entry *args_hash;
+ Elf_Internal_Sym *sym;
+ asection *sym_sec;
+ const char *sym_name;
+ symvalue sym_value;
+ bfd_vma location, destination;
+ char *new_name = NULL;
+
+ r_type = ELF32_R_TYPE (irela->r_info);
+ r_index = ELF32_R_SYM (irela->r_info);
+
+ if (r_type < 0 || r_type >= (int) R_PARISC_UNIMPLEMENTED)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+
+ /* Only look for stubs on call instructions or plabel
+ references. */
+ if (r_type != R_PARISC_PCREL17F
+ && r_type != R_PARISC_PLABEL32
+ && r_type != R_PARISC_PLABEL21L
+ && r_type != R_PARISC_PLABEL14R)
+ continue;
+
+ /* Now determine the call target, its name, value, section
+ and argument relocation bits. */
+ hash = NULL;
+ sym = NULL;
+ sym_sec = NULL;
+ if (r_index < symtab_hdr->sh_info)
+ {
+ /* It's a local symbol. */
+ Elf_Internal_Shdr *hdr;
+
+ sym = local_syms + r_index;
+ hdr = elf_elfsections (input_bfd)[sym->st_shndx];
+ sym_sec = hdr->bfd_section;
+ sym_name = bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ sym->st_name);
+ sym_value = (ELF_ST_TYPE (sym->st_info) == STT_SECTION
+ ? 0 : sym->st_value);
+ destination = (sym_value
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+
+ /* Tack on an ID so we can uniquely identify this local
+ symbol in the stub or arg info hash tables. */
+ new_name = bfd_malloc (strlen (sym_name) + 10);
+ if (new_name == 0)
+ {
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+ sprintf (new_name, "%s_%08x", sym_name, (int)sym_sec);
+ sym_name = new_name;
+ }
+ else
+ {
+ /* It's an external symbol. */
+ long index;
+
+ index = r_index - symtab_hdr->sh_info;
+ hash = elf_sym_hashes (input_bfd)[index];
+ if (hash->root.type == bfd_link_hash_defined
+ || hash->root.type == bfd_link_hash_defweak)
+ {
+ sym_sec = hash->root.u.def.section;
+ sym_name = hash->root.root.string;
+ sym_value = hash->root.u.def.value;
+ destination = (sym_value
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+ }
+ else
+ {
+ bfd_set_error (bfd_error_bad_value);
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+ }
+
+ args_hash = elf32_hppa_args_hash_lookup (args_hash_table,
+ sym_name, false, false);
+
+ /* Get both caller and callee argument information. */
+ if (args_hash == NULL)
+ callee_args = 0;
+ else
+ callee_args = args_hash->arg_bits;
+
+ /* For calls get the caller's bits from the addend of
+ the call relocation. For PLABELS the caller's bits
+ are assumed to have all args & return values in general
+ registers (0x155). */
+ if (r_type == R_PARISC_PCREL17F)
+ caller_args = HPPA_R_ARG_RELOC (irela->r_addend);
+ else
+ caller_args = 0x155;
+
+ /* Now determine where the call point is. */
+ location = (section->output_offset
+ + section->output_section->vma
+ + irela->r_offset);
+
+ /* We only care about the destination for PCREL function
+ calls (eg. we don't care for PLABELS). */
+ if (r_type != R_PARISC_PCREL17F)
+ location = destination;
+
+ /* Determine what (if any) linker stub is needed and its
+ size (in bytes). */
+ size_of_stub = elf32_hppa_size_of_stub (callee_args,
+ caller_args,
+ location,
+ destination,
+ sym_name);
+ if (size_of_stub != 0)
+ {
+ char *stub_name;
+ unsigned int len;
+
+ /* Get the name of this stub. */
+ len = strlen (sym_name);
+ len += 23;
+
+ stub_name = bfd_malloc (len);
+ if (!stub_name)
+ {
+ /* Because sym_name was mallocd above for local
+ symbols. */
+ if (r_index < symtab_hdr->sh_info)
+ free (new_name);
+
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+ elf32_hppa_name_of_stub (caller_args, callee_args,
+ location, destination, stub_name);
+ strcat (stub_name + 22, sym_name);
+
+ /* Because sym_name was malloced above for local symbols. */
+ if (r_index < symtab_hdr->sh_info)
+ free (new_name);
+
+ stub_hash
+ = elf32_hppa_stub_hash_lookup (stub_hash_table, stub_name,
+ false, false);
+ if (stub_hash != NULL)
+ {
+ /* The proper stub has already been created, nothing
+ else to do. */
+ free (stub_name);
+ }
+ else
+ {
+ bfd_set_section_size (stub_bfd, stub_sec,
+ (bfd_section_size (stub_bfd,
+ stub_sec)
+ + size_of_stub));
+
+ /* Enter this entry into the linker stub hash table. */
+ stub_hash
+ = elf32_hppa_stub_hash_lookup (stub_hash_table,
+ stub_name, true, true);
+ if (stub_hash == NULL)
+ {
+ free (stub_name);
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+
+ /* We'll need these to determine the address that the
+ stub will branch to. */
+ stub_hash->target_value = sym_value;
+ stub_hash->target_section = sym_sec;
+ }
+ free (stub_name);
+ }
+ }
+ /* We're done with the internal relocs, free them. */
+ free (internal_relocs);
+ }
+ }
+ /* We're done with the local symbols, free them. */
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ return true;
+
+error_return:
+ /* Return gracefully, avoiding dangling references to the hash tables. */
+ if (stub_hash_table)
+ {
+ elf32_hppa_hash_table(link_info)->stub_hash_table = NULL;
+ free (stub_hash_table);
+ }
+ if (args_hash_table)
+ {
+ elf32_hppa_hash_table(link_info)->args_hash_table = NULL;
+ free (args_hash_table);
+ }
+ /* Set the size of the stub section to zero since we're never going
+ to create them. Avoids losing when we try to get its contents
+ too. */
+ bfd_set_section_size (stub_bfd, stub_sec, 0);
+ return false;
}
-#define TARGET_BIG_SYM elf32_hppa_vec
+/* Misc BFD support code. */
+#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
+#define bfd_elf32_bfd_is_local_label_name hppa_elf_is_local_label_name
+
+/* Symbol extension stuff. */
+#define bfd_elf32_set_section_contents elf32_hppa_set_section_contents
+#define elf_info_to_howto elf32_hppa_info_to_howto
+#define elf_backend_symbol_table_processing \
+ elf32_hppa_backend_symbol_table_processing
+#define elf_backend_begin_write_processing \
+ elf32_hppa_backend_begin_write_processing
+#define elf_backend_final_write_processing \
+ elf32_hppa_backend_final_write_processing
+
+/* Stuff for the BFD linker. */
+#define elf_backend_relocate_section elf32_hppa_relocate_section
+#define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook
+#define elf_backend_link_output_symbol_hook \
+ elf32_hppa_link_output_symbol_hook
+#define bfd_elf32_bfd_link_hash_table_create \
+ elf32_hppa_link_hash_table_create
+
+#define 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"
projects / deliverable / binutils-gdb.git / blobdiff