+2006-05-24 Paul Brook <paul@codesourcery.com>
+
+ * elf-bfd.h (elf_backend_data): Add elf_backend_output_arch_local_syms
+ * elf32-arm.c (output_arch_syminfo): Define.
+ (elf32_arm_ouput_plt_map_sym, elf32_arm_output_plt_map,
+ elf32_arm_output_arch_local_syms): New functions.
+ (elf_backend_output_arch_local_syms): Define.
+ * elflink.c (bfd_elf_final_link): Call
+ elf_backend_output_arch_local_syms.
+ * elfxx-target.h (elf_backend_output_arch_local_syms): Provide default
+ definition.
+ (elfNN_bed): Add elf_backend_output_arch_local_syms.
+
2006-05-24 Paul Brook <paul@codesourcery.com>
* elf32-arm.c (put_arm_insn, put_thumb_insn): New functions.
/* This function, if defined, is called after all local symbols and
global symbols converted to locals are emitted into the symtab
- section. It allows the backend to emit special global symbols
+ section. It allows the backend to emit special local symbols
not handled in the hash table. */
+ bfd_boolean (*elf_backend_output_arch_local_syms)
+ (bfd *, struct bfd_link_info *, void *,
+ bfd_boolean (*) (void *, const char *, Elf_Internal_Sym *, asection *,
+ struct elf_link_hash_entry *));
+
+ /* This function, if defined, is called after all symbols are emitted
+ into the symtab section. It allows the backend to emit special
+ global symbols not handled in the hash table. */
bfd_boolean (*elf_backend_output_arch_syms)
(bfd *, struct bfd_link_info *, void *,
bfd_boolean (*) (void *, const char *, Elf_Internal_Sym *, asection *,
return TRUE;
}
+typedef struct
+{
+ void *finfo;
+ struct bfd_link_info *info;
+ int plt_shndx;
+ bfd_vma plt_offset;
+ bfd_boolean (*func) (void *, const char *, Elf_Internal_Sym *,
+ asection *, struct elf_link_hash_entry *);
+} output_arch_syminfo;
+
+enum map_symbol_type
+{
+ ARM_MAP_ARM,
+ ARM_MAP_THUMB,
+ ARM_MAP_DATA
+};
+
+
+/* Output a single PLT mapping symbol. */
+
+static bfd_boolean
+elf32_arm_ouput_plt_map_sym (output_arch_syminfo *osi,
+ enum map_symbol_type type,
+ bfd_vma offset)
+{
+ static const char *names[3] = {"$a", "$t", "$d"};
+ struct elf32_arm_link_hash_table *htab;
+ Elf_Internal_Sym sym;
+
+ htab = elf32_arm_hash_table (osi->info);
+ sym.st_value = osi->plt_offset + offset;
+ sym.st_size = 0;
+ sym.st_other = 0;
+ sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_NOTYPE);
+ sym.st_shndx = osi->plt_shndx;
+ if (!osi->func (osi->finfo, names[type], &sym, htab->splt, NULL))
+ return FALSE;
+ return TRUE;
+}
+
+
+/* Output mapping symbols for PLT entries associated with H. */
+
+static bfd_boolean
+elf32_arm_output_plt_map (struct elf_link_hash_entry *h, void *inf)
+{
+ output_arch_syminfo *osi = (output_arch_syminfo *) inf;
+ struct elf32_arm_link_hash_table *htab;
+ struct elf32_arm_link_hash_entry *eh;
+ bfd_vma addr;
+
+ htab = elf32_arm_hash_table (osi->info);
+
+ if (h->root.type == bfd_link_hash_indirect)
+ return TRUE;
+
+ if (h->root.type == bfd_link_hash_warning)
+ /* When warning symbols are created, they **replace** the "real"
+ entry in the hash table, thus we never get to see the real
+ symbol in a hash traversal. So look at it now. */
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+ if (h->plt.offset == (bfd_vma) -1)
+ return TRUE;
+
+ eh = (struct elf32_arm_link_hash_entry *) h;
+ addr = h->plt.offset;
+ if (htab->symbian_p)
+ {
+ if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_ARM, addr))
+ return FALSE;
+ if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_DATA, addr + 4))
+ return FALSE;
+ }
+ else if (htab->vxworks_p)
+ {
+ if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_ARM, addr))
+ return FALSE;
+ if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_DATA, addr + 8))
+ return FALSE;
+ if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_ARM, addr + 12))
+ return FALSE;
+ if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_DATA, addr + 20))
+ return FALSE;
+ }
+ else
+ {
+ bfd_boolean thumb_stub;
+
+ thumb_stub = eh->plt_thumb_refcount > 0 && !htab->use_blx;
+ if (thumb_stub)
+ {
+ if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_THUMB, addr - 4))
+ return FALSE;
+ }
+#ifdef FOUR_WORD_PLT
+ if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_ARM, addr))
+ return FALSE;
+ if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_DATA, addr + 12))
+ return FALSE;
+#else
+ /* A three-word PLT with no Thumb thunk contains only Arm code,
+ so only need to output a mapping symbol for the first PLT entry and
+ entries with thumb thunks. */
+ if (thumb_stub || addr == 20)
+ {
+ if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_ARM, addr))
+ return FALSE;
+ }
+#endif
+ }
+
+ return TRUE;
+}
+
+
+/* Output mapping symbols for the PLT. */
+
+static bfd_boolean
+elf32_arm_output_arch_local_syms (bfd *output_bfd,
+ struct bfd_link_info *info,
+ void *finfo, bfd_boolean (*func) (void *, const char *,
+ Elf_Internal_Sym *,
+ asection *,
+ struct elf_link_hash_entry *))
+{
+ output_arch_syminfo osi;
+ struct elf32_arm_link_hash_table *htab;
+
+ htab = elf32_arm_hash_table (info);
+ if (!htab->splt || htab->splt->size == 0)
+ return TRUE;
+
+ check_use_blx(htab);
+ osi.finfo = finfo;
+ osi.info = info;
+ osi.func = func;
+ osi.plt_shndx = _bfd_elf_section_from_bfd_section (output_bfd,
+ htab->splt->output_section);
+ osi.plt_offset = htab->splt->output_section->vma;
+
+ /* Output mapping symbols for the plt header. SymbianOS does not have a
+ plt header. */
+ if (htab->vxworks_p)
+ {
+ /* VxWorks shared libraries have no PLT header. */
+ if (!info->shared)
+ {
+ if (!elf32_arm_ouput_plt_map_sym (&osi, ARM_MAP_ARM, 0))
+ return FALSE;
+ if (!elf32_arm_ouput_plt_map_sym (&osi, ARM_MAP_DATA, 12))
+ return FALSE;
+ }
+ }
+ else if (!htab->symbian_p)
+ {
+ if (!elf32_arm_ouput_plt_map_sym (&osi, ARM_MAP_ARM, 0))
+ return FALSE;
+#ifndef FOUR_WORD_PLT
+ if (!elf32_arm_ouput_plt_map_sym (&osi, ARM_MAP_DATA, 16))
+ return FALSE;
+#endif
+ }
+
+ elf_link_hash_traverse (&htab->root, elf32_arm_output_plt_map, (void *) &osi);
+ return TRUE;
+}
+
/* Allocate target specific section data. */
static bfd_boolean
#define elf_backend_modify_segment_map elf32_arm_modify_segment_map
#define elf_backend_additional_program_headers \
elf32_arm_additional_program_headers
+#define elf_backend_output_arch_local_syms \
+ elf32_arm_output_arch_local_syms
#define elf_backend_can_refcount 1
#define elf_backend_can_gc_sections 1
if (eoinfo.failed)
return FALSE;
+ /* If backend needs to output some local symbols not present in the hash
+ table, do it now. */
+ if (bed->elf_backend_output_arch_local_syms)
+ {
+ typedef bfd_boolean (*out_sym_func)
+ (void *, const char *, Elf_Internal_Sym *, asection *,
+ struct elf_link_hash_entry *);
+
+ if (! ((*bed->elf_backend_output_arch_local_syms)
+ (abfd, info, &finfo, (out_sym_func) elf_link_output_sym)))
+ return FALSE;
+ }
+
/* That wrote out all the local symbols. Finish up the symbol table
with the global symbols. Even if we want to strip everything we
can, we still need to deal with those global symbols that got
#ifndef elf_backend_print_symbol_all
#define elf_backend_print_symbol_all NULL
#endif
+#ifndef elf_backend_output_arch_local_syms
+#define elf_backend_output_arch_local_syms NULL
+#endif
#ifndef elf_backend_output_arch_syms
#define elf_backend_output_arch_syms NULL
#endif
elf_backend_gc_sweep_hook,
elf_backend_post_process_headers,
elf_backend_print_symbol_all,
+ elf_backend_output_arch_local_syms,
elf_backend_output_arch_syms,
elf_backend_copy_indirect_symbol,
elf_backend_hide_symbol,
+2006-05-24 Paul Brook <paul@codesourcery.com>
+
+ * ld-arm/arm-app-abs32.d: Update expected output.
+ * ld-arm/arm-app.d: Ditto.
+ * ld-arm/arm-lib-plt32.d: Ditto.
+ * ld-arm/arm-lib.d: Ditto.
+ * ld-arm/mixed-app-v5.d: Ditto.
+ * ld-arm/mixed-app.d: Ditto.
+ * ld-arm/mixed-lib.d: Ditto.
+
2006-05-23 H.J. Lu <hongjiu.lu@intel.com>
PR ld/2655
.* <.plt>:
.*: e52de004 str lr, \[sp, #-4\]!
- .*: e59fe004 ldr lr, \[pc, #4\] ; .* <_start-0x10>
+ .*: e59fe004 ldr lr, \[pc, #4\] ; .* <\.plt\+0x10>
.*: e08fe00e add lr, pc, lr
.*: e5bef008 ldr pc, \[lr, #8\]!
.*: .* .*
.* <.plt>:
.*: e52de004 str lr, \[sp, #-4\]!
- .*: e59fe004 ldr lr, \[pc, #4\] ; .* <_start-0x10>
+ .*: e59fe004 ldr lr, \[pc, #4\] ; .* <\.plt\+0x10>
.*: e08fe00e add lr, pc, lr
.*: e5bef008 ldr pc, \[lr, #8\]!
.*: .*
.* <app_func>:
.*: e1a0c00d mov ip, sp
.*: e92dd800 stmdb sp!, {fp, ip, lr, pc}
- .*: ebfffff4 bl .* <_start-0xc>
+ .*: ebfffff4 bl .* <.text-0xc>
.*: e89d6800 ldmia sp, {fp, sp, lr}
.*: e12fff1e bx lr
.* <.plt>:
.*: e52de004 str lr, \[sp, #-4\]!
- .*: e59fe004 ldr lr, \[pc, #4\] ; .* <lib_func1-0x10>
+ .*: e59fe004 ldr lr, \[pc, #4\] ; .* <\.plt\+0x10>
.*: e08fe00e add lr, pc, lr
.*: e5bef008 ldr pc, \[lr, #8\]!
.*: .*
.* <lib_func1>:
.*: e1a0c00d mov ip, sp
.*: e92dd800 stmdb sp!, {fp, ip, lr, pc}
- .*: ebfffff9 bl .* <lib_func1-0xc>
+ .*: ebfffff9 bl .* <.text-0xc>
.*: e89d6800 ldmia sp, {fp, sp, lr}
.*: e12fff1e bx lr
.* <.plt>:
.*: e52de004 str lr, \[sp, #-4\]!
- .*: e59fe004 ldr lr, \[pc, #4\] ; .* <lib_func1-0x10>
+ .*: e59fe004 ldr lr, \[pc, #4\] ; .* <\.plt\+0x10>
.*: e08fe00e add lr, pc, lr
.*: e5bef008 ldr pc, \[lr, #8\]!
.*: .*
.* <lib_func1>:
.*: e1a0c00d mov ip, sp
.*: e92dd800 stmdb sp!, {fp, ip, lr, pc}
- .*: ebfffff9 bl .* <lib_func1-0xc>
+ .*: ebfffff9 bl .* <.text-0xc>
.*: e89d6800 ldmia sp, {fp, sp, lr}
.*: e12fff1e bx lr
.* <.plt>:
.*: e52de004 str lr, \[sp, #-4\]!
- .*: e59fe004 ldr lr, \[pc, #4\] ; .* <_start-0x20>
+ .*: e59fe004 ldr lr, \[pc, #4\] ; .* <\.plt\+0x10>
.*: e08fe00e add lr, pc, lr
.*: e5bef008 ldr pc, \[lr, #8\]!
.*: .*
.* <app_tfunc>:
.*: b500 push {lr}
- .*: f7ff efc. blx .* <_start-0x..>
+ .*: f7ff efc. blx .* <.text-0x..>
.*: bd00 pop {pc}
.*: 4770 bx lr
.*: 46c0 nop \(mov r8, r8\)
.* <.plt>:
.*: e52de004 str lr, \[sp, #-4\]!
- .*: e59fe004 ldr lr, \[pc, #4\] ; .* <_start-0x20>
+ .*: e59fe004 ldr lr, \[pc, #4\] ; .* <\.plt\+0x10>
.*: e08fe00e add lr, pc, lr
.*: e5bef008 ldr pc, \[lr, #8\]!
.*: .*
.* <app_tfunc>:
.*: b500 push {lr}
- .*: f7ff ffc. bl .* <_start-0x..>
+ .*: f7ff ffc. bl .* <.text-0x..>
.*: bd00 pop {pc}
.*: 4770 bx lr
.*: 46c0 nop \(mov r8, r8\)
.* <.plt>:
.*: e52de004 str lr, \[sp, #-4\]!
- .*: e59fe004 ldr lr, \[pc, #4\] ; .* <lib_func1-0x1.>
+ .*: e59fe004 ldr lr, \[pc, #4\] ; .* <\.plt\+0x10>
.*: e08fe00e add lr, pc, lr
.*: e5bef008 ldr pc, \[lr, #8\]!
.*: .*
.* <lib_func1>:
.*: e1a0c00d mov ip, sp
.*: e92dd800 stmdb sp!, {fp, ip, lr, pc}
- .*: ebfffff. bl .* <lib_func1-0x..>
+ .*: ebfffff. bl .* <.text-0x..>
.*: e89d6800 ldmia sp, {fp, sp, lr}
.*: e12fff1e bx lr
.*: e1a00000 nop \(mov r0,r0\)
projects / binutils-gdb.git / commitdiff