-/* Set the sizes of the dynamic sections. */
-
-static bfd_boolean
-elf32_sparc_size_dynamic_sections (output_bfd, info)
- bfd *output_bfd ATTRIBUTE_UNUSED;
- struct bfd_link_info *info;
-{
- bfd *dynobj;
- asection *s;
- bfd_boolean relplt;
-
- dynobj = elf_hash_table (info)->dynobj;
- BFD_ASSERT (dynobj != NULL);
-
- if (elf_hash_table (info)->dynamic_sections_created)
- {
- /* Set the contents of the .interp section to the interpreter. */
- if (! info->shared)
- {
- s = bfd_get_section_by_name (dynobj, ".interp");
- BFD_ASSERT (s != NULL);
- s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
- s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
- }
-
- /* Make space for the trailing nop in .plt. */
- s = bfd_get_section_by_name (dynobj, ".plt");
- BFD_ASSERT (s != NULL);
- if (s->_raw_size > 0)
- s->_raw_size += 4;
- }
- else
- {
- /* We may have created entries in the .rela.got section.
- However, if we are not creating the dynamic sections, we will
- not actually use these entries. Reset the size of .rela.got,
- which will cause it to get stripped from the output file
- below. */
- s = bfd_get_section_by_name (dynobj, ".rela.got");
- if (s != NULL)
- s->_raw_size = 0;
- }
-
- /* The check_relocs and adjust_dynamic_symbol entry points have
- determined the sizes of the various dynamic sections. Allocate
- memory for them. */
- relplt = FALSE;
- for (s = dynobj->sections; s != NULL; s = s->next)
- {
- const char *name;
- bfd_boolean strip;
-
- if ((s->flags & SEC_LINKER_CREATED) == 0)
- continue;
-
- /* It's OK to base decisions on the section name, because none
- of the dynobj section names depend upon the input files. */
- name = bfd_get_section_name (dynobj, s);
-
- strip = FALSE;
-
- if (strncmp (name, ".rela", 5) == 0)
- {
- if (s->_raw_size == 0)
- {
- /* If we don't need this section, strip it from the
- output file. This is to handle .rela.bss and
- .rel.plt. We must create it in
- create_dynamic_sections, because it must be created
- before the linker maps input sections to output
- sections. The linker does that before
- adjust_dynamic_symbol is called, and it is that
- function which decides whether anything needs to go
- into these sections. */
- strip = TRUE;
- }
- else
- {
- if (strcmp (name, ".rela.plt") == 0)
- relplt = TRUE;
-
- /* We use the reloc_count field as a counter if we need
- to copy relocs into the output file. */
- s->reloc_count = 0;
- }
- }
- else if (strcmp (name, ".plt") != 0
- && strcmp (name, ".got") != 0)
- {
- /* It's not one of our sections, so don't allocate space. */
- continue;
- }
-
- if (strip)
- {
- _bfd_strip_section_from_output (info, s);
- continue;
- }
-
- /* Allocate memory for the section contents. */
- /* FIXME: This should be a call to bfd_alloc not bfd_zalloc.
- Unused entries should be reclaimed before the section's contents
- are written out, but at the moment this does not happen. Thus in
- order to prevent writing out garbage, we initialise the section's
- contents to zero. */
- s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
- if (s->contents == NULL && s->_raw_size != 0)
- return FALSE;
- }
-
- if (elf_hash_table (info)->dynamic_sections_created)
- {
- /* Add some entries to the .dynamic section. We fill in the
- values later, in elf32_sparc_finish_dynamic_sections, but we
- must add the entries now so that we get the correct size for
- the .dynamic section. The DT_DEBUG entry is filled in by the
- dynamic linker and used by the debugger. */
-#define add_dynamic_entry(TAG, VAL) \
- bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
-
- if (!info->shared)
- {
- if (!add_dynamic_entry (DT_DEBUG, 0))
- return FALSE;
- }
-
- if (relplt)
- {
- if (!add_dynamic_entry (DT_PLTGOT, 0)
- || !add_dynamic_entry (DT_PLTRELSZ, 0)
- || !add_dynamic_entry (DT_PLTREL, DT_RELA)
- || !add_dynamic_entry (DT_JMPREL, 0))
- return FALSE;
- }
-
- if (!add_dynamic_entry (DT_RELA, 0)
- || !add_dynamic_entry (DT_RELASZ, 0)
- || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
- return FALSE;
-
- if (info->flags & DF_TEXTREL)
- {
- if (!add_dynamic_entry (DT_TEXTREL, 0))
- return FALSE;
- }
- }
-#undef add_dynamic_entry
-
- return TRUE;
-}
-
-struct elf32_sparc_section_data
-{
- struct bfd_elf_section_data elf;
- unsigned int do_relax;
-};
-
-#define sec_do_relax(sec) \
- ((struct elf32_sparc_section_data *) (sec)->used_by_bfd)->do_relax
-
-static bfd_boolean
-elf32_sparc_new_section_hook (abfd, sec)
- bfd *abfd;
- asection *sec;
-{
- struct elf32_sparc_section_data *sdata;
- bfd_size_type amt = sizeof (*sdata);
-
- sdata = (struct elf32_sparc_section_data *) bfd_zalloc (abfd, amt);
- if (sdata == NULL)
- return FALSE;
- sec->used_by_bfd = (PTR) sdata;
-
- return _bfd_elf_new_section_hook (abfd, sec);
-}
-
-static bfd_boolean
-elf32_sparc_relax_section (abfd, section, link_info, again)
- bfd *abfd ATTRIBUTE_UNUSED;
- asection *section ATTRIBUTE_UNUSED;
- struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
- bfd_boolean *again;
-{
- *again = FALSE;
- sec_do_relax (section) = 1;
- return TRUE;
-}
-
-/* This is the condition under which finish_dynamic_symbol will be called
- from elflink.h. If elflink.h doesn't call our finish_dynamic_symbol
- routine, we'll need to do something about initializing any .plt and .got
- entries in relocate_section. */
-#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \
- ((DYN) \
- && ((INFO)->shared \
- || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
- && ((H)->dynindx != -1 \
- || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
-
-/* Relocate a SPARC ELF section. */
-
-static bfd_boolean
-elf32_sparc_relocate_section (output_bfd, info, input_bfd, input_section,
- contents, relocs, local_syms, local_sections)
- bfd *output_bfd;
- struct bfd_link_info *info;
- bfd *input_bfd;
- asection *input_section;
- bfd_byte *contents;
- Elf_Internal_Rela *relocs;
- Elf_Internal_Sym *local_syms;
- asection **local_sections;
-{
- bfd *dynobj;
- Elf_Internal_Shdr *symtab_hdr;
- struct elf_link_hash_entry **sym_hashes;
- bfd_vma *local_got_offsets;
- bfd_vma got_base;
- asection *sgot;
- asection *splt;
- asection *sreloc;
- Elf_Internal_Rela *rel;
- Elf_Internal_Rela *relend;
-
- if (info->relocateable)
- return TRUE;
-
- dynobj = elf_hash_table (info)->dynobj;
- symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
- sym_hashes = elf_sym_hashes (input_bfd);
- local_got_offsets = elf_local_got_offsets (input_bfd);
-
- if (elf_hash_table (info)->hgot == NULL)
- got_base = 0;
- else
- got_base = elf_hash_table (info)->hgot->root.u.def.value;
-
- sgot = NULL;
- splt = NULL;
- sreloc = NULL;
-
- 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 *sec;
- bfd_vma relocation, off;
- bfd_reloc_status_type r;
- bfd_boolean is_plt = FALSE;
- bfd_boolean unresolved_reloc;
-
- r_type = ELF32_R_TYPE (rel->r_info);
-
- if (r_type == R_SPARC_GNU_VTINHERIT
- || r_type == R_SPARC_GNU_VTENTRY)
- continue;
-
- if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
- {
- bfd_set_error (bfd_error_bad_value);
- return FALSE;
- }
- howto = _bfd_sparc_elf_howto_table + r_type;
-
- /* This is a final link. */
- r_symndx = ELF32_R_SYM (rel->r_info);
- h = NULL;
- sym = NULL;
- sec = NULL;
- unresolved_reloc = FALSE;
- if (r_symndx < symtab_hdr->sh_info)
- {
- sym = local_syms + r_symndx;
- sec = local_sections[r_symndx];
- relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
- }
- else
- {
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- 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;
-
- relocation = 0;
- if (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- {
- sec = h->root.u.def.section;
- if (sec->output_section == NULL)
- /* Set a flag that will be cleared later if we find a
- relocation value for this symbol. output_section
- is typically NULL for symbols satisfied by a shared
- library. */
- unresolved_reloc = TRUE;
- else
- relocation = (h->root.u.def.value
- + sec->output_section->vma
- + sec->output_offset);
- }
- else if (h->root.type == bfd_link_hash_undefweak)
- ;
- else if (info->shared
- && (!info->symbolic || info->allow_shlib_undefined)
- && !info->no_undefined
- && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
- ;
- else
- {
- if (! ((*info->callbacks->undefined_symbol)
- (info, h->root.root.string, input_bfd,
- input_section, rel->r_offset,
- (!info->shared || info->no_undefined
- || ELF_ST_VISIBILITY (h->other)))))
- return FALSE;
- }
- }
-
- switch (r_type)
- {
- case R_SPARC_GOT10:
- case R_SPARC_GOT13:
- case R_SPARC_GOT22:
- /* Relocation is to the entry for this symbol in the global
- offset table. */
- if (sgot == NULL)
- {
- sgot = bfd_get_section_by_name (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
- }
-
- if (h != NULL)
- {
- bfd_boolean dyn;
-
- off = h->got.offset;
- BFD_ASSERT (off != (bfd_vma) -1);
- dyn = elf_hash_table (info)->dynamic_sections_created;
-
- if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h)
- || (info->shared
- && (info->symbolic
- || h->dynindx == -1
- || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
- {
- /* This is actually a static link, or it is a
- -Bsymbolic link and the symbol is defined
- locally, or the symbol was forced to be local
- because of a version file. We must initialize
- this entry in the global offset table. Since the
- offset must always be a multiple of 4, we use the
- least significant bit to record whether we have
- initialized it already.
-
- When doing a dynamic link, we create a .rela.got
- relocation entry to initialize the value. This
- is done in the finish_dynamic_symbol routine. */
- if ((off & 1) != 0)
- off &= ~1;
- else
- {
- bfd_put_32 (output_bfd, relocation,
- sgot->contents + off);
- h->got.offset |= 1;
- }
- }
- else
- unresolved_reloc = FALSE;
- }
- else
- {
- BFD_ASSERT (local_got_offsets != NULL
- && local_got_offsets[r_symndx] != (bfd_vma) -1);
-
- off = local_got_offsets[r_symndx];
-
- /* The offset must always be a multiple of 4. We use
- the least significant bit to record whether we have
- already processed this entry. */
- if ((off & 1) != 0)
- off &= ~1;
- else
- {
-
- if (info->shared)
- {
- asection *s;
- Elf_Internal_Rela outrel;
- bfd_byte *loc;
-
- /* We need to generate a R_SPARC_RELATIVE reloc
- for the dynamic linker. */
- s = bfd_get_section_by_name (dynobj, ".rela.got");
- BFD_ASSERT (s != NULL);
-
- outrel.r_offset = (sgot->output_section->vma
- + sgot->output_offset
- + off);
- outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE);
- outrel.r_addend = relocation;
- relocation = 0;
- loc = s->contents;
- loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
- bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
- }
-
- bfd_put_32 (output_bfd, relocation, sgot->contents + off);
- local_got_offsets[r_symndx] |= 1;
- }
- }
- relocation = sgot->output_offset + off - got_base;
- break;
-
- case R_SPARC_PLT32:
- if (h == NULL || h->plt.offset == (bfd_vma) -1)
- {
- r_type = R_SPARC_32;
- goto r_sparc_plt32;
- }
- /* Fall through. */
- case R_SPARC_WPLT30:
- /* Relocation is to the entry for this symbol in the
- procedure linkage table. */
-
- /* The Solaris native assembler will generate a WPLT30 reloc
- for a local symbol if you assemble a call from one
- section to another when using -K pic. We treat it as
- WDISP30. */
- if (h == NULL)
- break;
-
- if (h->plt.offset == (bfd_vma) -1)
- {
- /* We didn't make a PLT entry for this symbol. This
- happens when statically linking PIC code, or when
- using -Bsymbolic. */
- break;
- }
-
- if (splt == NULL)
- {
- splt = bfd_get_section_by_name (dynobj, ".plt");
- BFD_ASSERT (splt != NULL);
- }
-
- relocation = (splt->output_section->vma
- + splt->output_offset
- + h->plt.offset);
- unresolved_reloc = FALSE;
- if (r_type == R_SPARC_PLT32)
- {
- r_type = R_SPARC_32;
- is_plt = TRUE;
- goto r_sparc_plt32;
- }
- break;
-
- case R_SPARC_PC10:
- case R_SPARC_PC22:
- if (h != NULL
- && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
- break;
- /* Fall through. */
- case R_SPARC_DISP8:
- case R_SPARC_DISP16:
- case R_SPARC_DISP32:
- case R_SPARC_WDISP30:
- case R_SPARC_WDISP22:
- case R_SPARC_WDISP19:
- case R_SPARC_WDISP16:
- if (h == NULL
- || (info->symbolic
- && (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) != 0))
- break;
- /* Fall through. */
- case R_SPARC_8:
- case R_SPARC_16:
- case R_SPARC_32:
- case R_SPARC_HI22:
- case R_SPARC_22:
- case R_SPARC_13:
- case R_SPARC_LO10:
- case R_SPARC_UA16:
- case R_SPARC_UA32:
- r_sparc_plt32:
- if (info->shared
- && r_symndx != 0
- && (input_section->flags & SEC_ALLOC))
- {
- Elf_Internal_Rela outrel;
- bfd_byte *loc;
- bfd_boolean skip, relocate = FALSE;
-
- /* When generating a shared object, these relocations
- are copied into the output file to be resolved at run
- time. */
-
- if (sreloc == NULL)
- {
- const char *name;
-
- name = (bfd_elf_string_from_elf_section
- (input_bfd,
- elf_elfheader (input_bfd)->e_shstrndx,
- elf_section_data (input_section)->rel_hdr.sh_name));
- if (name == NULL)
- return FALSE;
-
- BFD_ASSERT (strncmp (name, ".rela", 5) == 0
- && strcmp (bfd_get_section_name (input_bfd,
- input_section),
- name + 5) == 0);
-
- sreloc = bfd_get_section_by_name (dynobj, name);
- BFD_ASSERT (sreloc != NULL);
- }
-
- skip = FALSE;
-
- outrel.r_offset =
- _bfd_elf_section_offset (output_bfd, info, input_section,
- rel->r_offset);
- if (outrel.r_offset == (bfd_vma) -1)
- skip = TRUE;
- else if (outrel.r_offset == (bfd_vma) -2)
- skip = TRUE, relocate = TRUE;
- outrel.r_offset += (input_section->output_section->vma
- + input_section->output_offset);
-
- /* Optimize unaligned reloc usage now that we know where
- it finally resides. */
- switch (r_type)
- {
- case R_SPARC_16:
- if (outrel.r_offset & 1)
- r_type = R_SPARC_UA16;
- break;
- case R_SPARC_UA16:
- if (!(outrel.r_offset & 1))
- r_type = R_SPARC_16;
- break;
- case R_SPARC_32:
- if (outrel.r_offset & 3)
- r_type = R_SPARC_UA32;
- break;
- case R_SPARC_UA32:
- if (!(outrel.r_offset & 3))
- r_type = R_SPARC_32;
- break;
- case R_SPARC_DISP8:
- case R_SPARC_DISP16:
- case R_SPARC_DISP32:
- /* If the symbol is not dynamic, we should not keep
- a dynamic relocation. But an .rela.* slot has been
- allocated for it, output R_SPARC_NONE.
- FIXME: Add code tracking needed dynamic relocs as
- e.g. i386 has. */
- if (h->dynindx == -1)
- skip = TRUE, relocate = TRUE;
- break;
- }
-
- if (skip)
- memset (&outrel, 0, sizeof outrel);
- /* h->dynindx may be -1 if the symbol was marked to
- become local. */
- else if (h != NULL && ! is_plt
- && ((! info->symbolic && h->dynindx != -1)
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0))
- {
- BFD_ASSERT (h->dynindx != -1);
- outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
- outrel.r_addend = rel->r_addend;
- }
- else
- {
- if (r_type == R_SPARC_32)
- {
- outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE);
- outrel.r_addend = relocation + rel->r_addend;
- }
- else
- {
- long indx;
-
- if (is_plt)
- sec = splt;
- else if (h == NULL)
- sec = local_sections[r_symndx];
- else
- {
- BFD_ASSERT (h->root.type == bfd_link_hash_defined
- || (h->root.type
- == bfd_link_hash_defweak));
- sec = h->root.u.def.section;
- }
- if (sec != NULL && bfd_is_abs_section (sec))
- indx = 0;
- else if (sec == NULL || sec->owner == NULL)
- {
- bfd_set_error (bfd_error_bad_value);
- return FALSE;
- }
- else
- {
- asection *osec;
-
- osec = sec->output_section;
- indx = elf_section_data (osec)->dynindx;
-
- /* FIXME: we really should be able to link non-pic
- shared libraries. */
- if (indx == 0)
- {
- BFD_FAIL ();
- (*_bfd_error_handler)
- (_("%s: probably compiled without -fPIC?"),
- bfd_archive_filename (input_bfd));
- bfd_set_error (bfd_error_bad_value);
- return FALSE;
- }
- }
-
- outrel.r_info = ELF32_R_INFO (indx, r_type);
- outrel.r_addend = relocation + rel->r_addend;
- }
- }
-
- loc = sreloc->contents;
- loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
- bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
-
- /* This reloc will be computed at runtime, so there's no
- need to do anything now. */
- if (! relocate)
- continue;
- }
- break;
-
- default:
- break;
- }
-
- /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
- because such sections are not SEC_ALLOC and thus ld.so will
- not process them. */
- if (unresolved_reloc
- && !((input_section->flags & SEC_DEBUGGING) != 0
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
- (*_bfd_error_handler)
- (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"),
- bfd_archive_filename (input_bfd),
- bfd_get_section_name (input_bfd, input_section),
- (long) rel->r_offset,
- h->root.root.string);
-
- r = bfd_reloc_continue;
- if (r_type == R_SPARC_WDISP16)
- {
- bfd_vma x;
-
- relocation += rel->r_addend;
- relocation -= (input_section->output_section->vma
- + input_section->output_offset);
- relocation -= rel->r_offset;
-
- x = bfd_get_32 (input_bfd, contents + rel->r_offset);
- x |= ((((relocation >> 2) & 0xc000) << 6)
- | ((relocation >> 2) & 0x3fff));
- bfd_put_32 (input_bfd, x, contents + rel->r_offset);
-
- if ((bfd_signed_vma) relocation < - 0x40000
- || (bfd_signed_vma) relocation > 0x3ffff)
- r = bfd_reloc_overflow;
- else
- r = bfd_reloc_ok;
- }
- else if (r_type == R_SPARC_REV32)
- {
- bfd_vma x;
-
- relocation = relocation + rel->r_addend;
-
- x = bfd_get_32 (input_bfd, contents + rel->r_offset);
- x = x + relocation;
- bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
- r = bfd_reloc_ok;
- }
- else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
- && sec_do_relax (input_section)
- && rel->r_offset + 4 < input_section->_raw_size)
- {
-#define G0 0
-#define O7 15
-#define XCC (2 << 20)
-#define COND(x) (((x)&0xf)<<25)
-#define CONDA COND(0x8)
-#define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
-#define INSN_BA (F2(0,2) | CONDA)
-#define INSN_OR F3(2, 0x2, 0)
-#define INSN_NOP F2(0,4)
-
- bfd_vma x, y;
-
- /* If the instruction is a call with either:
- restore
- arithmetic instruction with rd == %o7
- where rs1 != %o7 and rs2 if it is register != %o7
- then we can optimize if the call destination is near
- by changing the call into a branch always. */
- x = bfd_get_32 (input_bfd, contents + rel->r_offset);
- y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
- if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
- {
- if (((y & OP3(~0)) == OP3(0x3d) /* restore */
- || ((y & OP3(0x28)) == 0 /* arithmetic */
- && (y & RD(~0)) == RD(O7)))
- && (y & RS1(~0)) != RS1(O7)
- && ((y & F3I(~0))
- || (y & RS2(~0)) != RS2(O7)))
- {
- bfd_vma reloc;
-
- reloc = relocation + rel->r_addend - rel->r_offset;
- reloc -= (input_section->output_section->vma
- + input_section->output_offset);
-
- /* Ensure the reloc fits into simm22. */
- if ((reloc & 3) == 0
- && ((reloc & ~(bfd_vma)0x7fffff) == 0
- || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
- {
- reloc >>= 2;
-
- /* Check whether it fits into simm19 on v9. */
- if (((reloc & 0x3c0000) == 0
- || (reloc & 0x3c0000) == 0x3c0000)
- && (elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
- x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
- else
- x = INSN_BA | (reloc & 0x3fffff); /* ba */
- bfd_put_32 (input_bfd, x, contents + rel->r_offset);
- r = bfd_reloc_ok;
- if (rel->r_offset >= 4
- && (y & (0xffffffff ^ RS1(~0)))
- == (INSN_OR | RD(O7) | RS2(G0)))
- {
- bfd_vma z;
- unsigned int reg;
-
- z = bfd_get_32 (input_bfd,
- contents + rel->r_offset - 4);
- if ((z & (0xffffffff ^ RD(~0)))
- != (INSN_OR | RS1(O7) | RS2(G0)))
- break;
-
- /* The sequence was
- or %o7, %g0, %rN
- call foo
- or %rN, %g0, %o7
-
- If call foo was replaced with ba, replace
- or %rN, %g0, %o7 with nop. */
-
- reg = (y & RS1(~0)) >> 14;
- if (reg != ((z & RD(~0)) >> 25)
- || reg == G0 || reg == O7)
- break;
-
- bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
- contents + rel->r_offset + 4);
- }
-
- }
- }
- }
- }
-
- if (r == bfd_reloc_continue)
- r = _bfd_final_link_relocate (howto, input_bfd, input_section,
- contents, rel->r_offset,
- relocation, rel->r_addend);
-
- if (r != bfd_reloc_ok)
- {
- switch (r)
- {
- default:
- case bfd_reloc_outofrange:
- abort ();
- case bfd_reloc_overflow:
- {
- const char *name;
-
- if (h != NULL)
- name = h->root.root.string;
- else
- {
- name = bfd_elf_string_from_elf_section (input_bfd,
- symtab_hdr->sh_link,
- sym->st_name);
- if (name == NULL)
- return FALSE;
- if (*name == '\0')
- name = bfd_section_name (input_bfd, sec);
- }
- if (! ((*info->callbacks->reloc_overflow)
- (info, name, howto->name, (bfd_vma) 0,
- input_bfd, input_section, rel->r_offset)))
- return FALSE;
- }
- break;
- }
- }
- }
-
- return TRUE;
-}
-
-/* Finish up dynamic symbol handling. We set the contents of various
- dynamic sections here. */
-
-static bfd_boolean
-elf32_sparc_finish_dynamic_symbol (output_bfd, info, h, sym)
- bfd *output_bfd;
- struct bfd_link_info *info;
- struct elf_link_hash_entry *h;
- Elf_Internal_Sym *sym;
-{
- bfd *dynobj;
-
- dynobj = elf_hash_table (info)->dynobj;
-
- if (h->plt.offset != (bfd_vma) -1)
- {
- asection *splt;
- asection *srela;
- Elf_Internal_Rela rela;
- bfd_byte *loc;
-
- /* This symbol has an entry in the procedure linkage table. Set
- it up. */
-
- BFD_ASSERT (h->dynindx != -1);
-
- splt = bfd_get_section_by_name (dynobj, ".plt");
- srela = bfd_get_section_by_name (dynobj, ".rela.plt");
- BFD_ASSERT (splt != NULL && srela != NULL);
-
- /* Fill in the entry in the procedure linkage table. */
- bfd_put_32 (output_bfd,
- PLT_ENTRY_WORD0 + h->plt.offset,
- splt->contents + h->plt.offset);
- bfd_put_32 (output_bfd,
- (PLT_ENTRY_WORD1
- + (((- (h->plt.offset + 4)) >> 2) & 0x3fffff)),
- splt->contents + h->plt.offset + 4);
- bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2,
- splt->contents + h->plt.offset + 8);
-
- /* Fill in the entry in the .rela.plt section. */
- rela.r_offset = (splt->output_section->vma
- + splt->output_offset
- + h->plt.offset);
- rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_JMP_SLOT);
- rela.r_addend = 0;
- loc = srela->contents;
- loc += (h->plt.offset / PLT_ENTRY_SIZE - 4) * sizeof (Elf32_External_Rela);
- bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
-
- if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
- {
- /* Mark the symbol as undefined, rather than as defined in
- the .plt section. Leave the value alone. */
- sym->st_shndx = SHN_UNDEF;
- /* If the symbol is weak, we do need to clear the value.
- Otherwise, the PLT entry would provide a definition for
- the symbol even if the symbol wasn't defined anywhere,
- and so the symbol would never be NULL. */
- if ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK)
- == 0)
- sym->st_value = 0;
- }
- }
-
- if (h->got.offset != (bfd_vma) -1)
- {
- asection *sgot;
- asection *srela;
- Elf_Internal_Rela rela;
- bfd_byte *loc;
-
- /* This symbol has an entry in the global offset table. Set it
- up. */
-
- sgot = bfd_get_section_by_name (dynobj, ".got");
- srela = bfd_get_section_by_name (dynobj, ".rela.got");
- BFD_ASSERT (sgot != NULL && srela != NULL);
-
- rela.r_offset = (sgot->output_section->vma
- + sgot->output_offset
- + (h->got.offset &~ (bfd_vma) 1));
-
- /* If this is a -Bsymbolic link, and the symbol is defined
- locally, we just want to emit a RELATIVE reloc. Likewise if
- the symbol was forced to be local because of a version file.
- The entry in the global offset table will already have been
- initialized in the relocate_section function. */
- if (info->shared
- && (info->symbolic || h->dynindx == -1)
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
- {
- asection *sec = h->root.u.def.section;
- rela.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE);
- rela.r_addend = (h->root.u.def.value
- + sec->output_section->vma
- + sec->output_offset);
- }
- else
- {
- rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_GLOB_DAT);
- rela.r_addend = 0;
- }
-
- bfd_put_32 (output_bfd, (bfd_vma) 0,
- sgot->contents + (h->got.offset &~ (bfd_vma) 1));
- loc = srela->contents;
- loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
- bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
- }
-
- if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
- {
- asection *s;
- Elf_Internal_Rela rela;
- bfd_byte *loc;
-
- /* This symbols needs a copy reloc. Set it up. */
-
- BFD_ASSERT (h->dynindx != -1);
-
- s = bfd_get_section_by_name (h->root.u.def.section->owner,
- ".rela.bss");
- BFD_ASSERT (s != NULL);
-
- rela.r_offset = (h->root.u.def.value
- + h->root.u.def.section->output_section->vma
- + h->root.u.def.section->output_offset);
- rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_COPY);
- rela.r_addend = 0;
- loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
- bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
- }
-
- /* Mark some specially defined symbols as absolute. */
- if (strcmp (h->root.root.string, "_DYNAMIC") == 0
- || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
- || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
- sym->st_shndx = SHN_ABS;
-
- return TRUE;
-}
-
-/* Finish up the dynamic sections. */
-
-static bfd_boolean
-elf32_sparc_finish_dynamic_sections (output_bfd, info)
- bfd *output_bfd;
- struct bfd_link_info *info;
-{
- bfd *dynobj;
- asection *sdyn;
- asection *sgot;
-
- dynobj = elf_hash_table (info)->dynobj;
-
- sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
-
- if (elf_hash_table (info)->dynamic_sections_created)
- {
- asection *splt;
- Elf32_External_Dyn *dyncon, *dynconend;
-
- splt = bfd_get_section_by_name (dynobj, ".plt");
- BFD_ASSERT (splt != NULL && sdyn != NULL);
-
- dyncon = (Elf32_External_Dyn *) sdyn->contents;
- dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
- for (; dyncon < dynconend; dyncon++)
- {
- Elf_Internal_Dyn dyn;
- const char *name;
- bfd_boolean size;
-
- bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
-
- switch (dyn.d_tag)
- {
- case DT_PLTGOT: name = ".plt"; size = FALSE; break;
- case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break;
- case DT_JMPREL: name = ".rela.plt"; size = FALSE; break;
- default: name = NULL; size = FALSE; break;
- }
-
- if (name != NULL)
- {
- asection *s;
-
- s = bfd_get_section_by_name (output_bfd, name);
- if (s == NULL)
- dyn.d_un.d_val = 0;
- else
- {
- if (! size)
- dyn.d_un.d_ptr = s->vma;
- else
- {
- if (s->_cooked_size != 0)
- dyn.d_un.d_val = s->_cooked_size;
- else
- dyn.d_un.d_val = s->_raw_size;
- }
- }
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
- }
- }
-
- /* Clear the first four entries in the procedure linkage table,
- and put a nop in the last four bytes. */
- if (splt->_raw_size > 0)
- {
- memset (splt->contents, 0, 4 * PLT_ENTRY_SIZE);
- bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
- splt->contents + splt->_raw_size - 4);
- }
-
- elf_section_data (splt->output_section)->this_hdr.sh_entsize =
- PLT_ENTRY_SIZE;
- }
-
- /* Set the first entry in the global offset table to the address of
- the dynamic section. */
- sgot = bfd_get_section_by_name (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
- if (sgot->_raw_size > 0)
- {
- if (sdyn == NULL)
- bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
- else
- bfd_put_32 (output_bfd,
- sdyn->output_section->vma + sdyn->output_offset,
- sgot->contents);
- }
-
- elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
-
- return TRUE;
-}
-\f