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snapshot of eabi relocation support.

This commit is contained in:
Michael Meissner 1996-01-22 16:43:35 +00:00
parent 2d422c4234
commit 3b3753b874
4 changed files with 773 additions and 375 deletions
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48
bfd/ChangeLog
View File

@ -1,3 +1,51 @@
Mon Jan 22 11:21:51 1996 Michael Meissner <meissner@tiktok.cygnus.com>
* elf-bfd.h (struct elf_link_hash_entry): Add
linker_section_pointer field.
(enum elf_linker_section_enum): Enumeration for new way of
creating linker dynamic sections and symbols.
(elf_linker_section{,_pointers}): New structures for creating
dynamic sections and symbols.
(elf_obj_tdata): Add linker_section_pointers and linker_section
fields.
(elf_local_ptr_offsets,elf_linker_section): New accessor macros.
(_bfd_elf_create_linker_section): New declarations.
(_bfd_elf_find_pointer_linker_section): Ditto.
(bfd_elf{32,64}_{create,finish}_pointer_linker_section): Ditto.
(_bfd_elf_make_linker_section_rela): Ditto.
* elf.c (_bfd_elf_link_hash_newfunc): Initialize new fields.
* elf32-ppc.c (ppc_elf_create_dynamic_sections): Delete.
(ppc_elf_create_linker_section): New function to create the
sections .got, .sdata, and .sdata2.
(ppc_elf_size_dynamic_sections): Zap .rela.{sdata,sdata2} if
needed.
(ppc_elf_check_relocs): Support more of the eabi relocations.
(ppc_elf_relocate_section): Ditto.
(ppc_elf_finish_dynamic_symbols): Adjust _SDA{,2}_BASE_ by 32768
if the .sdata{,2} + .sbss{,2} section size is > 32k.
* elflink.h (elf_create_pointer_linker_section): New function to
create initialized pointers in dynamic linker sections.
(elf_finish_pointer_linker_section): Actually intialize the
pointers created above.
* elfcode.h (bfd_elf{32,64}_create_pointer_linker_section): New
macros to provide both 32 and 64 bit versions of
elf_create_pointer_linker_section.
(bfd_elf{32,64}_finish_pointer_linker_section): New macros to
provide both 32 and 64 bit versions of
elf_finish_pointer_linker_section.
* elflink.c (_bfd_elf_create_linker_section): New function to
create a linker section.
(_bfd_elf_find_pointer_linker_section): Find a unique pointer to a
given address in the linker pointer offsets created for a given
symbol.
(_bfd_elf_make_linker_section_rela): Make a RELA section
corresponding to the generated linker section.
start-sanitize-v8plus
Sat Jan 20 08:36:10 1996 Doug Evans <dje@canuck.cygnus.com>

696
bfd/elf32-ppc.c
View File

@ -112,8 +112,10 @@ static boolean ppc_elf_section_from_shdr PARAMS ((bfd *,
Elf32_Internal_Shdr *,
char *));
static bfd *ppc_elf_create_dynamic_sections PARAMS ((bfd *abfd,
struct bfd_link_info *info));
static elf_linker_section_t *ppc_elf_create_linker_section
PARAMS ((bfd *abfd,
struct bfd_link_info *info,
enum elf_linker_section_enum));
static boolean ppc_elf_check_relocs PARAMS ((bfd *,
struct bfd_link_info *,
@ -1217,33 +1219,71 @@ ppc_elf_fake_sections (abfd, shdr, asect)
}
/* Create the PowerPC dynamic sections */
static bfd *
ppc_elf_create_dynamic_sections (abfd, info)
/* Create a special linker section */
static elf_linker_section_t *
ppc_elf_create_linker_section (abfd, info, which)
bfd *abfd;
struct bfd_link_info *info;
enum elf_linker_section_enum which;
{
struct elf_link_hash_entry *h;
struct elf_backend_data *bed = get_elf_backend_data (abfd);
bfd *dynobj = elf_hash_table (info)->dynobj;
elf_linker_section_t *lsect;
/* Create the .got section. */
if (! _bfd_elf_create_got_section (abfd, info))
return (bfd *)0;
/* Record the first bfd section that needs the special section */
if (!dynobj)
dynobj = elf_hash_table (info)->dynobj = abfd;
/* Also create the .got.neg section where we put negative offsets */
if (bfd_get_section_by_name (abfd, ".got.neg") == NULL)
/* If this is the first time, create the section */
lsect = elf_linker_section (dynobj, which);
if (!lsect)
{
asection *s = bfd_make_section (abfd, ".got.neg");
if (s == NULL
|| !bfd_set_section_flags (abfd, s,
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY)
|| !bfd_set_section_alignment (abfd, s, 2))
return (bfd *)0;
elf_linker_section_t defaults;
static elf_linker_section_t zero_section;
defaults = zero_section;
defaults.which = which;
defaults.hole_written_p = false;
defaults.alignment = 2;
defaults.flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
switch (which)
{
default:
(*_bfd_error_handler) ("%s: Unknown special linker type %d",
bfd_get_filename (abfd),
(int)which);
bfd_set_error (bfd_error_bad_value);
return (elf_linker_section_t *)0;
case LINKER_SECTION_GOT: /* .got section */
defaults.name = ".got";
defaults.rel_name = ".rela.got";
defaults.sym_name = "_GLOBAL_OFFSET_TABLE_";
defaults.max_hole_offset = 32764;
defaults.hole_size = 16;
defaults.sym_offset = 4;
break;
case LINKER_SECTION_SDATA: /* .sdata/.sbss section */
defaults.name = ".sdata";
defaults.rel_name = ".rela.sdata";
defaults.bss_name = ".sbss";
defaults.sym_name = "_SDA_BASE_";
break;
case LINKER_SECTION_SDATA2: /* .sdata2/.sbss2 section */
defaults.name = ".sdata2";
defaults.rel_name = ".rela.sdata2";
defaults.bss_name = ".sbss2";
defaults.sym_name = "_SDA2_BASE_";
break;
}
lsect = _bfd_elf_create_linker_section (abfd, info, which, &defaults);
}
elf_hash_table (info)->dynobj = abfd;
return abfd;
return lsect;
}
@ -1324,19 +1364,20 @@ ppc_elf_size_dynamic_sections (output_bfd, info)
}
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;
/* We may have created entries in the .rela.got, .rela.sdata, and
.rela.sdata2 section2. However, if we are not creating the
dynamic sections, we will not actually use these entries. Reset
the size of .rela.got, et al, which will cause it to get
stripped from the output file below. */
static char *rela_sections[] = { ".rela.got", ".rela.sdata", ".rela.sdata", (char *)0 };
char **p;
/* Ditto for .rela.got.neg */
s = bfd_get_section_by_name (dynobj, ".rela.got.neg");
if (s != NULL)
s->_raw_size = 0;
for (p = rela_sections; *p != (char *)0; p++)
{
s = bfd_get_section_by_name (dynobj, *p);
if (s != NULL)
s->_raw_size = 0;
}
}
/* The check_relocs and adjust_dynamic_symbol entry points have
@ -1393,8 +1434,7 @@ ppc_elf_size_dynamic_sections (output_bfd, info)
}
}
else if (strcmp (name, ".plt") != 0
&& strcmp (name, ".got") != 0
&& strcmp (name, ".got.neg") != 0)
&& strcmp (name, ".got") != 0)
{
/* It's not one of our sections, so don't allocate space. */
continue;
@ -1498,13 +1538,11 @@ ppc_elf_check_relocs (abfd, info, sec, relocs)
bfd *dynobj;
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
bfd_vma *local_got_offsets;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
asection *sgot;
asection *sgot_neg;
asection *srelgot;
asection *srelgot_neg;
elf_linker_section_t *got;
elf_linker_section_t *sdata;
elf_linker_section_t *sdata2;
asection *sreloc;
if (info->relocateable)
@ -1514,13 +1552,34 @@ ppc_elf_check_relocs (abfd, info, sec, relocs)
fprintf (stderr, "ppc_elf_check_relocs called for section %s\n", sec->name);
#endif
/* Create the linker generated sections all the time so that the special
symbols are created. */
if ((got = elf_linker_section (abfd, LINKER_SECTION_GOT)) == NULL)
{
got = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_GOT);
if (!got)
return false;
}
if ((sdata = elf_linker_section (abfd, LINKER_SECTION_SDATA)) == NULL)
{
sdata = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_SDATA);
if (!sdata)
return false;
}
if ((sdata2 = elf_linker_section (abfd, LINKER_SECTION_SDATA2)) == NULL)
{
sdata2 = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_SDATA2);
if (!sdata2)
return false;
}
dynobj = elf_hash_table (info)->dynobj;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
local_got_offsets = elf_local_got_offsets (abfd);
sgot = NULL;
srelgot = NULL;
sreloc = NULL;
rel_end = relocs + sec->reloc_count;
@ -1537,118 +1596,51 @@ ppc_elf_check_relocs (abfd, info, sec, relocs)
switch (ELF32_R_TYPE (rel->r_info))
{
default:
break;
/* GOT16 relocations */
case R_PPC_GOT16:
case R_PPC_GOT16_LO:
case R_PPC_GOT16_HI:
case R_PPC_GOT16_HA:
#ifdef DEBUG
fprintf (stderr, "Reloc requires a GOT entry\n");
#endif
/* This symbol requires a global offset table entry. */
if (got->rel_section == NULL
&& (h != NULL || info->shared)
&& !_bfd_elf_make_linker_section_rela (dynobj, got, 2))
return false;
if (dynobj == NULL)
{
dynobj = ppc_elf_create_dynamic_sections (abfd, info);
if (!dynobj)
return false;
}
if (sgot == NULL)
{
sgot = bfd_get_section_by_name (dynobj, ".got");
sgot_neg = bfd_get_section_by_name (dynobj, ".got.neg");
BFD_ASSERT (sgot != NULL && sgot_neg != NULL);
}
if (srelgot == NULL
&& (h != NULL || info->shared))
{
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
if (srelgot == NULL)
{
srelgot = bfd_make_section (dynobj, ".rela.got");
if (srelgot == NULL
|| ! bfd_set_section_flags (dynobj, srelgot,
(SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_READONLY))
|| ! bfd_set_section_alignment (dynobj, srelgot, 2))
return false;
}
srelgot_neg = bfd_get_section_by_name (dynobj, ".rela.got.neg");
if (srelgot_neg == NULL)
{
srelgot_neg = bfd_make_section (dynobj, ".rela.got.neg");
if (srelgot == NULL
|| ! bfd_set_section_flags (dynobj, srelgot_neg,
(SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_READONLY))
|| ! bfd_set_section_alignment (dynobj, srelgot, 2))
return false;
}
}
if (h != NULL)
{
if (h->got_offset != (bfd_vma) -1)
{
/* We have already allocated space in the .got. */
break;
}
h->got_offset = sgot->_raw_size;
/* Make sure this symbol is output as a dynamic symbol. */
if (h->dynindx == -1)
{
if (! bfd_elf32_link_record_dynamic_symbol (info, h))
return false;
}
srelgot->_raw_size += sizeof (Elf32_External_Rela);
}
else
{
/* This is a global offset table entry for a local
symbol. */
if (local_got_offsets == NULL)
{
size_t size;
register unsigned int i;
size = symtab_hdr->sh_info * sizeof (bfd_vma);
local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
if (local_got_offsets == NULL)
return false;
elf_local_got_offsets (abfd) = local_got_offsets;
for (i = 0; i < symtab_hdr->sh_info; i++)
local_got_offsets[i] = (bfd_vma) -1;
}
if (local_got_offsets[r_symndx] != (bfd_vma) -1)
{
/* We have already allocated space in the .got. */
break;
}
local_got_offsets[r_symndx] = sgot->_raw_size;
if (info->shared)
{
/* If we are generating a shared object, we need to
output a R_PPC_RELATIVE reloc so that the
dynamic linker can adjust this GOT entry. */
srelgot->_raw_size += sizeof (Elf32_External_Rela);
}
}
sgot->_raw_size += 4;
if (!bfd_elf32_create_pointer_linker_section (abfd, info, got, h, rel))
return false;
break;
/* Indirect .sdata relocation */
case R_PPC_EMB_SDAI16:
if (got->rel_section == NULL
&& (h != NULL || info->shared)
&& !_bfd_elf_make_linker_section_rela (dynobj, got, 2))
return false;
BFD_ASSERT (!info->shared);
if (!bfd_elf32_create_pointer_linker_section (abfd, info, sdata, h, rel))
return false;
break;
/* Indirect .sdata2 relocation */
case R_PPC_EMB_SDA2I16:
if (got->rel_section == NULL
&& (h != NULL || info->shared)
&& !_bfd_elf_make_linker_section_rela (dynobj, got, 2))
return false;
BFD_ASSERT (!info->shared);
if (!bfd_elf32_create_pointer_linker_section (abfd, info, sdata2, h, rel))
return false;
break;
#if 0
case R_PPC_PLT32:
case R_PPC_PLTREL24:
case R_PPC_PLT16_LO:
@ -1681,7 +1673,6 @@ ppc_elf_check_relocs (abfd, info, sec, relocs)
h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
break;
#if 0
case R_SPARC_PC10:
case R_SPARC_PC22:
if (h != NULL
@ -1746,9 +1737,6 @@ ppc_elf_check_relocs (abfd, info, sec, relocs)
break;
#endif
default:
break;
}
}
@ -1767,12 +1755,17 @@ ppc_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
Elf_Internal_Sym *sym;
{
bfd *dynobj;
elf_linker_section_t *sdata;
elf_linker_section_t *sdata2;
#ifdef DEBUG
fprintf (stderr, "ppc_elf_finish_dynamic_symbol called\n");
fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s\n", h->root.root.string);
#endif
dynobj = elf_hash_table (info)->dynobj;
BFD_ASSERT (dynobj != NULL);
sdata = elf_linker_section (dynobj, LINKER_SECTION_SDATA);
sdata2 = elf_linker_section (dynobj, LINKER_SECTION_SDATA2);
if (h->plt_offset != (bfd_vma) -1)
{
@ -1820,46 +1813,6 @@ ppc_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
}
}
if (h->got_offset != (bfd_vma) -1)
{
asection *sgot;
asection *srela;
Elf_Internal_Rela rela;
/* This symbol has an entry in the global offset table. Set it
up. */
BFD_ASSERT (h->dynindx != -1);
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 &~ 1));
/* If this is a -Bsymbolic link, and the symbol is defined
locally, we just want to emit a RELATIVE reloc. The entry in
the global offset table will already have been initialized in
the relocate_section function. */
if (info->shared
&& info->symbolic
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
rela.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
else
{
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got_offset);
rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_GLOB_DAT);
}
rela.r_addend = 0;
bfd_elf32_swap_reloca_out (output_bfd, &rela,
((Elf32_External_Rela *) srela->contents
+ srela->reloc_count));
++srela->reloc_count;
}
if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
{
asection *s;
@ -1890,6 +1843,45 @@ ppc_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
|| strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
sym->st_shndx = SHN_ABS;
/* If .sdata is larger than 32767, bump up _SDA_BASE_ by 32768 so that
we put off getting relocation overflows until it is > 65k. Do the
same for .sdata2 and _SDA2_BASE_. */
if (sdata && sdata->sym_hash == h
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) == 0)
{
bfd_vma size = 0;
asection *s = bfd_get_section_by_name (output_bfd, ".sdata");
if (s)
size = s->_raw_size;
s = bfd_get_section_by_name (output_bfd, ".sbss");
if (s)
size += s->_raw_size;
if (size > 32767)
h->root.u.def.value += 32768;
h->elf_link_hash_flags |= ELF_LINK_HASH_DYNAMIC_ADJUSTED;
}
if (sdata2 && sdata2->sym_hash == h
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) == 0)
{
bfd_vma size = 0;
asection *s = bfd_get_section_by_name (output_bfd, ".sdata2");
if (s)
size = s->_raw_size;
s = bfd_get_section_by_name (output_bfd, ".sbss2");
if (s)
size += s->_raw_size;
if (size > 32767)
h->root.u.def.value += 32768;
h->elf_link_hash_flags |= ELF_LINK_HASH_DYNAMIC_ADJUSTED;
}
return true;
}
@ -1901,16 +1893,14 @@ ppc_elf_finish_dynamic_sections (output_bfd, info)
bfd *output_bfd;
struct bfd_link_info *info;
{
bfd *dynobj;
asection *sdyn;
asection *sgot;
bfd *dynobj = elf_hash_table (info)->dynobj;
elf_linker_section_t *got = elf_linker_section (dynobj, LINKER_SECTION_GOT);
#ifdef DEBUG
fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
#endif
dynobj = elf_hash_table (info)->dynobj;
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
if (elf_hash_table (info)->dynamic_sections_created)
@ -1961,37 +1951,24 @@ ppc_elf_finish_dynamic_sections (output_bfd, info)
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 0
if (splt->_raw_size > 0)
{
memset (splt->contents, 0, 4 * PLT_ENTRY_SIZE);
bfd_put_32 (output_bfd, SPARC_NOP,
splt->contents + splt->_raw_size - 4);
}
elf_section_data (splt->output_section)->this_hdr.sh_entsize =
PLT_ENTRY_SIZE;
#endif
}
/* 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)
/* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 so that a function can
easily find the address of the _GLOBAL_OFFSET_TABLE_. */
if (got)
{
unsigned char *contents = got->section->contents + got->hole_offset;
bfd_put_32 (output_bfd, 0x4e800021 /* blrl */, contents);
if (sdyn == NULL)
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
bfd_put_32 (output_bfd, (bfd_vma) 0, contents+4);
else
bfd_put_32 (output_bfd,
sdyn->output_section->vma + sdyn->output_offset,
sgot->contents);
}
contents+4);
elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
elf_section_data (got->section->output_section)->this_hdr.sh_entsize = 4;
}
if (info->shared)
{
@ -2079,8 +2056,9 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
bfd *dynobj = elf_hash_table (info)->dynobj;
bfd_vma *local_got_offsets = elf_local_got_offsets (input_bfd);
asection *sgot = (asection *)0;
elf_linker_section_t *got = elf_linker_section (dynobj, LINKER_SECTION_GOT);
elf_linker_section_t *sdata = elf_linker_section (dynobj, LINKER_SECTION_SDATA);
elf_linker_section_t *sdata2 = elf_linker_section (dynobj, LINKER_SECTION_SDATA2);
Elf_Internal_Rela *rel = relocs;
Elf_Internal_Rela *relend = relocs + input_section->reloc_count;
boolean ret = true;
@ -2199,21 +2177,23 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
ret = false;
continue;
case R_PPC_NONE: /* relocations that need no special processing */
case R_PPC_ADDR32:
case R_PPC_ADDR24:
case R_PPC_ADDR16:
case R_PPC_ADDR16_LO:
case R_PPC_ADDR16_HI:
case R_PPC_ADDR14:
case R_PPC_REL24:
case R_PPC_REL14:
case R_PPC_UADDR32:
case R_PPC_UADDR16:
case R_PPC_REL32:
/* relocations that need no special processing */
case (int)R_PPC_NONE:
case (int)R_PPC_ADDR32:
case (int)R_PPC_ADDR24:
case (int)R_PPC_ADDR16:
case (int)R_PPC_ADDR16_LO:
case (int)R_PPC_ADDR16_HI:
case (int)R_PPC_ADDR14:
case (int)R_PPC_REL24:
case (int)R_PPC_REL14:
case (int)R_PPC_UADDR32:
case (int)R_PPC_UADDR16:
case (int)R_PPC_REL32:
break;
case (int)R_PPC_ADDR14_BRTAKEN: /* branch taken prediction relocations */
/* branch taken prediction relocations */
case (int)R_PPC_ADDR14_BRTAKEN:
case (int)R_PPC_REL14_BRTAKEN:
insn = bfd_get_32 (output_bfd, contents + offset);
if ((relocation - offset) & 0x8000)
@ -2223,7 +2203,8 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
bfd_put_32 (output_bfd, insn, contents + offset);
break;
case (int)R_PPC_ADDR14_BRNTAKEN: /* branch not taken predicition relocations */
/* branch not taken predicition relocations */
case (int)R_PPC_ADDR14_BRNTAKEN:
case (int)R_PPC_REL14_BRNTAKEN:
insn = bfd_get_32 (output_bfd, contents + offset);
if ((relocation - offset) & 0x8000)
@ -2233,111 +2214,30 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
bfd_put_32 (output_bfd, insn, contents + offset);
break;
case (int)R_PPC_GOT16: /* GOT16 relocations */
/* GOT16 relocations */
case (int)R_PPC_GOT16:
case (int)R_PPC_GOT16_LO:
case (int)R_PPC_GOT16_HI:
case (int)R_PPC_GOT16_HA:
#ifdef DEBUG
fprintf (stderr, "GOT relocations in section %s from section %s\n", input_section->name, sec->name);
#endif
if (dynobj == NULL)
{
dynobj = ppc_elf_create_dynamic_sections (output_bfd, info);
if (!dynobj)
{
ret = false;
continue;
}
}
relocation = bfd_elf32_finish_pointer_linker_section (output_bfd, input_bfd, info,
got, h, relocation, rel,
R_PPC_RELATIVE);
break;
BFD_ASSERT (sec != (asection *)0);
if (!sgot)
{
sgot = bfd_get_section_by_name (dynobj, ".got");
BFD_ASSERT (sgot != NULL);
}
if (h != NULL)
{
bfd_vma off;
off = h->got_offset;
BFD_ASSERT (off != (bfd_vma) -1);
if (! elf_hash_table (info)->dynamic_sections_created
|| (info->shared
&& info->symbolic
&& (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. 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;
}
}
relocation = sgot->output_offset + off;
}
else
{
bfd_vma off;
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
{
bfd_put_32 (output_bfd, relocation, sgot->contents + off);
if (info->shared)
{
asection *srelgot;
Elf_Internal_Rela outrel;
/* We need to generate a R_PPC_RELATIVE reloc
for the dynamic linker. */
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
BFD_ASSERT (srelgot != NULL);
outrel.r_offset = (sgot->output_section->vma
+ sgot->output_offset
+ off);
outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
outrel.r_addend = 0;
bfd_elf32_swap_reloca_out (output_bfd, &outrel,
(((Elf32_External_Rela *)
srelgot->contents)
+ srelgot->reloc_count));
++srelgot->reloc_count;
}
local_got_offsets[r_symndx] |= 1;
}
relocation = sgot->output_offset + off;
}
/* Indirect .sdata relocation */
case (int)R_PPC_EMB_SDAI16:
BFD_ASSERT (sdata != NULL);
relocation = bfd_elf32_finish_pointer_linker_section (output_bfd, input_bfd, info,
sdata, h, relocation, rel,
R_PPC_RELATIVE);
break;
/* Indirect .sdata2 relocation */
case (int)R_PPC_EMB_SDA2I16:
BFD_ASSERT (sdata2 != NULL);
relocation = bfd_elf32_finish_pointer_linker_section (output_bfd, input_bfd, info,
sdata2, h, relocation, rel,
R_PPC_RELATIVE);
break;
/* Handle the TOC16 reloc. We want to use the offset within the .got
@ -2353,78 +2253,128 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
addend -= sec->output_section->vma + 0x8000;
break;
case (int)R_PPC_ADDR16_HA: /* arithmetic adjust relocations */
/* arithmetic adjust relocations */
case (int)R_PPC_ADDR16_HA:
BFD_ASSERT (sec != (asection *)0);
addend += ((relocation + addend) & 0x8000) << 1;
break;
case R_PPC_SDAREL16: /* relocate against _SDA_BASE_ */
/* relocate against _SDA_BASE_ */
case (int)R_PPC_SDAREL16:
BFD_ASSERT (sec != (asection *)0);
if (strcmp (bfd_get_section_name (abfd, sec), ".sdata") != 0
&& strcmp (bfd_get_section_name (abfd, sec), ".sbss") != 0)
{
(*_bfd_error_handler) ("%s: The target of R_PPC_SDAREL16 relocations must be in section .sdata or .sbss not %s",
(*_bfd_error_handler) ("%s: The target of a %s relocation is in the wrong section (%s)",
bfd_get_filename (input_bfd),
ppc_elf_howto_table[ (int)r_type ]->name,
bfd_get_section_name (abfd, sec));
bfd_set_error (bfd_error_bad_value);
ret = false;
continue;
}
goto unsupported;
relocation = (sdata->sym_hash->root.u.def.value
+ sdata->sym_hash->root.u.def.section->output_section->vma
- relocation);
break;
case R_PPC_EMB_SDA2REL:
/* relocate against _SDA2_BASE_ */
case (int)R_PPC_EMB_SDA2REL:
BFD_ASSERT (sec != (asection *)0);
if (strcmp (bfd_get_section_name (abfd, sec), ".sdata2") != 0
&& strcmp (bfd_get_section_name (abfd, sec), ".sbss2") != 0)
{
(*_bfd_error_handler) ("%s: The target of R_PPC_SDA2REL16 relocations must be in section .sdata2 or .sbss2 not %s",
(*_bfd_error_handler) ("%s: The target of a %s relocation is in the wrong section (%s)",
bfd_get_filename (input_bfd),
ppc_elf_howto_table[ (int)r_type ]->name,
bfd_get_section_name (abfd, sec));
bfd_set_error (bfd_error_bad_value);
ret = false;
continue;
}
goto unsupported;
relocation = (sdata->sym_hash->root.u.def.value
+ sdata->sym_hash->root.u.def.section->output_section->vma
- relocation);
break;
case R_PPC_PLTREL24:
case R_PPC_COPY:
case R_PPC_GLOB_DAT:
case R_PPC_JMP_SLOT:
case R_PPC_RELATIVE:
case R_PPC_LOCAL24PC:
case R_PPC_PLT32:
case R_PPC_PLTREL32:
case R_PPC_PLT16_LO:
case R_PPC_PLT16_HI:
case R_PPC_PLT16_HA:
case R_PPC_SECTOFF:
case R_PPC_SECTOFF_LO:
case R_PPC_SECTOFF_HI:
case R_PPC_SECTOFF_HA:
case R_PPC_EMB_NADDR32:
case R_PPC_EMB_NADDR16:
case R_PPC_EMB_NADDR16_LO:
case R_PPC_EMB_NADDR16_HI:
case R_PPC_EMB_NADDR16_HA:
case R_PPC_EMB_SDAI16:
case R_PPC_EMB_SDA2I16:
case R_PPC_EMB_SDA21:
case R_PPC_EMB_MRKREF:
case R_PPC_EMB_RELSEC16:
case R_PPC_EMB_RELST_LO:
case R_PPC_EMB_RELST_HI:
case R_PPC_EMB_RELST_HA:
case R_PPC_EMB_BIT_FLD:
case R_PPC_EMB_RELSDA:
/* relocate against either _SDA_BASE_, _SDA2_BASE_, or 0 */
case (int)R_PPC_EMB_SDA21:
case (int)R_PPC_EMB_RELSDA:
{
const char *name = bfd_get_section_name (abfd, sec);
int reg;
BFD_ASSERT (sec != (asection *)0);
if (strcmp (name, ".sdata") == 0 || strcmp (name, ".sbss") == 0)
{
reg = 13;
relocation = (sdata2->sym_hash->root.u.def.value
+ sdata2->sym_hash->root.u.def.section->output_section->vma
- relocation);
}
else if (strcmp (name, ".sdata2") == 0 || strcmp (name, ".sbss2") == 0)
{
reg = 2;
relocation = (sdata2->sym_hash->root.u.def.value
+ sdata2->sym_hash->root.u.def.section->output_section->vma
- relocation);
}
else if (strcmp (name, ".PPC.EMB.sdata0") == 0 || strcmp (name, ".PPC.EMB.sbss0") == 0)
{
reg = 0;
}
else
{
(*_bfd_error_handler) ("%s: The target of a %s relocation is in the wrong section (%s)",
bfd_get_filename (input_bfd),
ppc_elf_howto_table[ (int)r_type ]->name,
bfd_get_section_name (abfd, sec));
bfd_set_error (bfd_error_bad_value);
ret = false;
continue;
}
goto unsupported;
}
case (int)R_PPC_PLTREL24:
case (int)R_PPC_COPY:
case (int)R_PPC_GLOB_DAT:
case (int)R_PPC_JMP_SLOT:
case (int)R_PPC_RELATIVE:
case (int)R_PPC_LOCAL24PC:
case (int)R_PPC_PLT32:
case (int)R_PPC_PLTREL32:
case (int)R_PPC_PLT16_LO:
case (int)R_PPC_PLT16_HI:
case (int)R_PPC_PLT16_HA:
case (int)R_PPC_SECTOFF:
case (int)R_PPC_SECTOFF_LO:
case (int)R_PPC_SECTOFF_HI:
case (int)R_PPC_SECTOFF_HA:
case (int)R_PPC_EMB_NADDR32:
case (int)R_PPC_EMB_NADDR16:
case (int)R_PPC_EMB_NADDR16_LO:
case (int)R_PPC_EMB_NADDR16_HI:
case (int)R_PPC_EMB_NADDR16_HA:
case (int)R_PPC_EMB_MRKREF:
case (int)R_PPC_EMB_RELSEC16:
case (int)R_PPC_EMB_RELST_LO:
case (int)R_PPC_EMB_RELST_HI:
case (int)R_PPC_EMB_RELST_HA:
case (int)R_PPC_EMB_BIT_FLD:
unsupported:
(*_bfd_error_handler) ("%s: Relocation %s is not yet supported.",
bfd_get_filename (input_bfd),
ppc_elf_howto_table[ (int)r_type ]->name);
bfd_set_error (bfd_error_bad_value);
bfd_set_error (bfd_error_invalid_operation);
ret = false;
continue;
}

169
bfd/elflink.c
View File

@ -15,14 +15,14 @@ GNU General Public License for more details.
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"
#define ARCH_SIZE 0
#include "libelf.h"
#include "elf-bfd.h"
boolean
_bfd_elf_create_got_section (abfd, info)
@ -77,6 +77,7 @@ _bfd_elf_create_got_section (abfd, info)
return true;
}
/* Create dynamic sections when linking against a dynamic object. */
@ -163,6 +164,7 @@ _bfd_elf_create_dynamic_sections (abfd, info)
return true;
}
/* Record a new dynamic symbol. We record the dynamic symbols as we
read the input files, since we need to have a list of all of them
@ -202,3 +204,166 @@ _bfd_elf_link_record_dynamic_symbol (info, h)
return true;
}
/* Create a special linker section, or return a pointer to a linker section already created */
elf_linker_section_t *
_bfd_elf_create_linker_section (abfd, info, which, defaults)
bfd *abfd;
struct bfd_link_info *info;
enum elf_linker_section_enum which;
elf_linker_section_t *defaults;
{
bfd *dynobj = elf_hash_table (info)->dynobj;
elf_linker_section_t *lsect;
/* Record the first bfd section that needs the special section */
if (!dynobj)
dynobj = elf_hash_table (info)->dynobj = abfd;
/* If this is the first time, create the section */
lsect = elf_linker_section (dynobj, which);
if (!lsect)
{
asection *s;
static elf_linker_section_t zero_section;
lsect = (elf_linker_section_t *)
bfd_alloc (dynobj, sizeof (elf_linker_section_t));
*lsect = *defaults;
elf_linker_section (dynobj, which) = lsect;
lsect->which = which;
lsect->hole_written_p = false;
/* See if the sections already exist */
lsect->section = s = bfd_get_section_by_name (dynobj, lsect->name);
if (!s)
{
lsect->section = s = bfd_make_section (dynobj, lsect->name);
if (s == NULL)
return (elf_linker_section_t *)0;
bfd_set_section_flags (dynobj, s, defaults->flags);
bfd_set_section_alignment (dynobj, s, lsect->alignment);
}
else if (bfd_get_section_alignment (dynobj, s) < lsect->alignment)
bfd_set_section_alignment (dynobj, s, lsect->alignment);
s->_raw_size = align_power (s->_raw_size, lsect->alignment);
/* Is there a hole we have to provide? If so check whether the segment is
too big already */
if (lsect->hole_size)
{
lsect->hole_offset = s->_raw_size;
s->_raw_size += lsect->hole_size;
if (lsect->hole_offset > lsect->max_hole_offset)
{
(*_bfd_error_handler) ("%s: Section %s is already to large to put hole of %ld bytes in",
bfd_get_filename (abfd),
lsect->name,
(long)lsect->hole_size);
bfd_set_error (bfd_error_bad_value);
return (elf_linker_section_t *)0;
}
}
#ifdef DEBUG
fprintf (stderr, "Creating section %s, current size = %ld\n",
lsect->name, (long)s->_raw_size);
#endif
if (lsect->sym_name)
{
struct elf_link_hash_entry *h = NULL;
#ifdef DEBUG
fprintf (stderr, "Adding %s to section %s\n",
lsect->sym_name,
lsect->name);
#endif
if (!(_bfd_generic_link_add_one_symbol (info,
abfd,
lsect->sym_name,
BSF_GLOBAL,
s,
((lsect->hole_size)
? s->_raw_size - lsect->hole_size + lsect->sym_offset
: lsect->sym_offset),
(const char *) NULL,
false,
get_elf_backend_data (abfd)->collect,
(struct bfd_link_hash_entry **) &h)))
return (elf_linker_section_t *)0;
h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_DYNAMIC;
h->type = STT_OBJECT;
lsect->sym_hash = h;
if (info->shared
&& ! _bfd_elf_link_record_dynamic_symbol (info, h))
return (elf_linker_section_t *)0;
}
}
/* Find the related sections if they have been created */
if (lsect->bss_name && !lsect->bss_section)
lsect->bss_section = bfd_get_section_by_name (dynobj, lsect->bss_name);
if (lsect->rel_name && !lsect->rel_section)
lsect->rel_section = bfd_get_section_by_name (dynobj, lsect->rel_name);
return lsect;
}
/* Find a linker generated pointer with a given addend and type. */
elf_linker_section_pointers_t *
_bfd_elf_find_pointer_linker_section (linker_pointers, addend, which)
elf_linker_section_pointers_t *linker_pointers;
bfd_signed_vma addend;
elf_linker_section_enum_t which;
{
for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
{
if (which == linker_pointers->which && addend == linker_pointers->addend)
return linker_pointers;
}
return (elf_linker_section_pointers_t *)0;
}
/* Make the .rela section corresponding to the generated linker section. */
boolean
_bfd_elf_make_linker_section_rela (dynobj, lsect, alignment)
bfd *dynobj;
elf_linker_section_t *lsect;
int alignment;
{
if (lsect->rel_section)
return true;
lsect->rel_section = bfd_get_section_by_name (dynobj, lsect->rel_name);
if (lsect->rel_section == NULL)
{
lsect->rel_section = bfd_make_section (dynobj, lsect->rel_name);
if (lsect->rel_section == NULL
|| ! bfd_set_section_flags (dynobj,
lsect->rel_section,
(SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_READONLY))
|| ! bfd_set_section_alignment (dynobj, lsect->rel_section, alignment))
return false;
}
return true;
}

235
bfd/elflink.h
View File

@ -58,6 +58,7 @@ elf_bfd_link_add_symbols (abfd, info)
return false;
}
}
/* Add symbols from an ELF archive file to the linker hash table. We
don't use _bfd_generic_link_add_archive_symbols because of a
@ -1098,6 +1099,7 @@ elf_add_dynamic_entry (info, tag, val)
return true;
}
/* Read and swap the relocs for a section. They may have been cached.
If the EXTERNAL_RELOCS and INTERNAL_RELOCS arguments are not NULL,
@ -1208,6 +1210,7 @@ elf_link_read_relocs (abfd, o, external_relocs, internal_relocs, keep_memory)
free (alloc2);
return NULL;
}
/* Record an assignment to a symbol made by a linker script. We need
this in case some dynamic object refers to this symbol. */
@ -1262,6 +1265,7 @@ NAME(bfd_elf,record_link_assignment) (output_bfd, info, name, provide)
return true;
}
/* Array used to determine the number of hash table buckets to use
based on the number of symbols there are. If there are fewer than
@ -1464,6 +1468,7 @@ NAME(bfd_elf,size_dynamic_sections) (output_bfd, soname, rpath,
return true;
}
/* This routine is used to export all defined symbols into the dynamic
symbol table. It is called via elf_link_hash_traverse. */
@ -1488,6 +1493,7 @@ elf_export_symbol (h, data)
return true;
}
/* Make the backend pick a good value for a dynamic symbol. This is
called via elf_link_hash_traverse, and also calls itself
@ -3132,3 +3138,232 @@ elf_reloc_link_order (output_bfd, info, output_section, link_order)
return true;
}
/* Allocate a pointer to live in a linker created section. */
boolean
elf_create_pointer_linker_section (abfd, info, lsect, h, rel)
bfd *abfd;
struct bfd_link_info *info;
elf_linker_section_t *lsect;
struct elf_link_hash_entry *h;
const Elf_Internal_Rela *rel;
{
elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
elf_linker_section_pointers_t *linker_section_ptr;
unsigned long r_symndx = ELF_R_SYM (rel->r_info);;
BFD_ASSERT (lsect != NULL);
/* Is this a global symbol? */
if (h != NULL)
{
/* Has this symbol already been allocated, if so, our work is done */
if (_bfd_elf_find_pointer_linker_section (h->linker_section_pointer,
rel->r_addend,
lsect->which))
return true;
ptr_linker_section_ptr = &h->linker_section_pointer;
/* Make sure this symbol is output as a dynamic symbol. */
if (h->dynindx == -1)
{
if (! elf_link_record_dynamic_symbol (info, h))
return false;
}
BFD_ASSERT (lsect->rel_section != NULL);
lsect->rel_section->_raw_size += sizeof (Elf_External_Rela);
}
else /* Allocation of a pointer to a local symbol */
{
elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
/* Allocate a table to hold the local symbols if first time */
if (!ptr)
{
int num_symbols = elf_tdata (abfd)->symtab_hdr.sh_info;
register unsigned int i;
ptr = (elf_linker_section_pointers_t **)
bfd_alloc (abfd, num_symbols * sizeof (elf_linker_section_pointers_t *));
if (!ptr)
return false;
elf_local_ptr_offsets (abfd) = ptr;
for (i = 0; i < num_symbols; i++)
ptr[i] = (elf_linker_section_pointers_t *)0;
}
/* Has this symbol already been allocated, if so, our work is done */
if (_bfd_elf_find_pointer_linker_section (ptr[r_symndx],
rel->r_addend,
lsect->which))
return true;
ptr_linker_section_ptr = &ptr[r_symndx];
if (info->shared)
{
/* If we are generating a shared object, we need to
output a R_PPC_RELATIVE reloc so that the
dynamic linker can adjust this GOT entry. */
BFD_ASSERT (lsect->rel_section != NULL);
lsect->rel_section->_raw_size += sizeof (Elf_External_Rela);
}
}
/* Allocate space for a pointer in the linker section, and allocate a new pointer record
from internal memory. */
BFD_ASSERT (ptr_linker_section_ptr != NULL);
linker_section_ptr = (elf_linker_section_pointers_t *)
bfd_alloc (abfd, sizeof (elf_linker_section_pointers_t));
if (!linker_section_ptr)
return false;
linker_section_ptr->next = *ptr_linker_section_ptr;
linker_section_ptr->addend = rel->r_addend;
linker_section_ptr->which = lsect->which;
linker_section_ptr->written_address_p = false;
*ptr_linker_section_ptr = linker_section_ptr;
if (lsect->hole_size && lsect->hole_offset < lsect->max_hole_offset)
{
linker_section_ptr->offset = lsect->section->_raw_size - lsect->hole_size;
lsect->hole_offset += ARCH_SIZE / 8;
lsect->sym_offset += ARCH_SIZE / 8;
if (lsect->sym_hash) /* Bump up symbol value if needed */
lsect->sym_hash->root.u.def.value += ARCH_SIZE / 8;
}
else
linker_section_ptr->offset = lsect->section->_raw_size;
lsect->section->_raw_size += ARCH_SIZE / 8;
#ifdef DEBUG
fprintf (stderr, "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
lsect->name, (long)linker_section_ptr->offset, (long)lsect->section->_raw_size);
#endif
return true;
}
#if ARCH_SIZE==64
#define bfd_put_ptr(BFD,VAL,ADDR) bfd_put_64 (BFD, VAL, ADDR)
#endif
#if ARCH_SIZE==32
#define bfd_put_ptr(BFD,VAL,ADDR) bfd_put_32 (BFD, VAL, ADDR)
#endif
/* Fill in the address for a pointer generated in alinker section. */
bfd_vma
elf_finish_pointer_linker_section (output_bfd, input_bfd, info, lsect, h, relocation, rel, relative_reloc)
bfd *output_bfd;
bfd *input_bfd;
struct bfd_link_info *info;
elf_linker_section_t *lsect;
struct elf_link_hash_entry *h;
bfd_vma relocation;
const Elf_Internal_Rela *rel;
int relative_reloc;
{
elf_linker_section_pointers_t *linker_section_ptr;
BFD_ASSERT (lsect != NULL);
if (!lsect->section->contents)
lsect->section->contents = (unsigned char *) bfd_zalloc (output_bfd,
lsect->section->_raw_size);
if (h != NULL) /* global symbol */
{
linker_section_ptr = _bfd_elf_find_pointer_linker_section (h->linker_section_pointer,
rel->r_addend,
lsect->which);
BFD_ASSERT (linker_section_ptr != NULL);
if (! elf_hash_table (info)->dynamic_sections_created
|| (info->shared
&& info->symbolic
&& (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. We must initialize this entry in the
global section.
When doing a dynamic link, we create a .rela.<xxx>
relocation entry to initialize the value. This
is done in the finish_dynamic_symbol routine. */
if (!linker_section_ptr->written_address_p)
{
linker_section_ptr->written_address_p = true;
bfd_put_ptr (output_bfd, relocation + linker_section_ptr->addend,
lsect->section->contents + linker_section_ptr->offset);
}
}
}
else /* local symbol */
{
unsigned long r_symndx = ELF_R_SYM (rel->r_info);
BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
BFD_ASSERT (elf_local_ptr_offsets (input_bfd)[r_symndx] != NULL);
linker_section_ptr = _bfd_elf_find_pointer_linker_section (elf_local_ptr_offsets (input_bfd)[r_symndx],
rel->r_addend,
lsect->which);
BFD_ASSERT (linker_section_ptr != NULL);
/* Write out pointer if it hasn't been rewritten out before */
if (!linker_section_ptr->written_address_p)
{
linker_section_ptr->written_address_p = true;
bfd_put_ptr (output_bfd, relocation + linker_section_ptr->addend,
lsect->section->contents + linker_section_ptr->offset);
if (info->shared)
{
asection *srel = lsect->rel_section;
Elf_Internal_Rela outrel;
/* We need to generate a relative reloc for the dynamic linker. */
if (!srel)
lsect->rel_section = srel = bfd_get_section_by_name (elf_hash_table (info)->dynobj,
lsect->rel_name);
BFD_ASSERT (srel != NULL);
outrel.r_offset = (lsect->section->output_section->vma
+ lsect->section->output_offset
+ linker_section_ptr->offset);
outrel.r_info = ELF_R_INFO (0, relative_reloc);
outrel.r_addend = 0;
elf_swap_reloca_out (output_bfd, &outrel,
(((Elf32_External_Rela *)
lsect->section->contents)
+ lsect->section->reloc_count));
++lsect->section->reloc_count;
}
}
}
relocation = (lsect->section->output_offset
+ linker_section_ptr->offset
- lsect->hole_offset
- lsect->sym_offset);
#ifdef DEBUG
fprintf (stderr, "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
lsect->name, (long)relocation, (long)relocation);
#endif
/* Subtract out the addend, because it will get added back in by the normal
processing. */
return relocation - linker_section_ptr->addend;
}