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* elfxx-ia64.c (struct elfNN_ia64_link_hash_table): Add rel_fptr_sec.
	(elfNN_ia64_dynamic_symbol_p): Change info->shared into
	!info->executable.
	(get_fptr): For -pie create .opd as writable section and create
	.rela.opd as well.
	(elfNN_ia64_check_relocs): Change info->shared into
	!info->executable.
	(allocate_fptr): Likewise.
	(allocate_dynrel_entries): Account for a relative reloc for -pie
	@fptr().  Don't account for a relative reloc if -pie want_ltoff_fptr
	for undefweak symbol.  Account for an IPLT reloc in .rela.opd
	section if -pie.
	(set_got_entry): Don't create a relative reloc if -pie
	want_ltoff_fptr for undefweak symbol.
	(set_fptr_entry): Emit an IPLT reloc in .rela.opd for -pie.
	(elfNN_ia64_relocate_section): Emit a relative reloc for -pie
	@fptr().

	* elfxx-ia64.c (elfNN_ia64_relocate_section): Issue undefined_symbol
	even if -pie.
	* elf32-i386.c (elf_i386_relocate_section): Likewise.
	* elf64-x86-64.c (elf64_x86_64_relocate_section): Likewise.
	* elf64-sparc.c (sparc64_elf_relocate_section): Likewise.
	* elf64-s390.c (elf_s390_relocate_section): Likewise.
	* elf64-ppc.c (ppc64_elf_relocate_section): Likewise.
	* elf64-alpha.c (elf64_alpha_relocate_section): Likewise.
	* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
	* elf32-s390.c (elf_s390_relocate_section): Likewise.
	* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
ld/
	* emulparams/elf64_ia64.sh (OTHER_READONLY_SECTIONS): Don't include
	.opd if -pie.
	(OTHER_READWRITE_SECTIONS): Include .opd if -pie.
	* scripttempl/elf.sc: Use SHLIB_DATA_ADDR instead of DATA_ADDR
	if -pie.
This commit is contained in:
Jakub Jelinek 2003-07-04 13:53:38 +00:00
parent 03417200ae
commit 9203ba999f
14 changed files with 162 additions and 38 deletions
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32
bfd/ChangeLog
View file

@ -1,3 +1,35 @@
2003-07-04 Jakub Jelinek <jakub@redhat.com>
* elfxx-ia64.c (struct elfNN_ia64_link_hash_table): Add rel_fptr_sec.
(elfNN_ia64_dynamic_symbol_p): Change info->shared into
!info->executable.
(get_fptr): For -pie create .opd as writable section and create
.rela.opd as well.
(elfNN_ia64_check_relocs): Change info->shared into
!info->executable.
(allocate_fptr): Likewise.
(allocate_dynrel_entries): Account for a relative reloc for -pie
@fptr(). Don't account for a relative reloc if -pie want_ltoff_fptr
for undefweak symbol. Account for an IPLT reloc in .rela.opd
section if -pie.
(set_got_entry): Don't create a relative reloc if -pie
want_ltoff_fptr for undefweak symbol.
(set_fptr_entry): Emit an IPLT reloc in .rela.opd for -pie.
(elfNN_ia64_relocate_section): Emit a relative reloc for -pie
@fptr().
* elfxx-ia64.c (elfNN_ia64_relocate_section): Issue undefined_symbol
even if -pie.
* elf32-i386.c (elf_i386_relocate_section): Likewise.
* elf64-x86-64.c (elf64_x86_64_relocate_section): Likewise.
* elf64-sparc.c (sparc64_elf_relocate_section): Likewise.
* elf64-s390.c (elf_s390_relocate_section): Likewise.
* elf64-ppc.c (ppc64_elf_relocate_section): Likewise.
* elf64-alpha.c (elf64_alpha_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf32-s390.c (elf_s390_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
2003-07-04 Paul <paulc@senet.com.au>
* elf32-h8300.c (R_H8_DIR32A16): Fix name field.

2
bfd/elf32-i386.c
View file

@ -2177,7 +2177,7 @@ elf_i386_relocate_section (bfd *output_bfd,
}
else if (h->root.type == bfd_link_hash_undefweak)
;
else if (info->shared
else if (!info->executable
&& !info->no_undefined
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
;

2
bfd/elf32-ppc.c
View file

@ -4628,7 +4628,7 @@ ppc_elf_relocate_section (bfd *output_bfd,
}
else if (h->root.type == bfd_link_hash_undefweak)
;
else if (info->shared
else if (!info->executable
&& !info->no_undefined
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
;

2
bfd/elf32-s390.c
View file

@ -2356,7 +2356,7 @@ elf_s390_relocate_section (output_bfd, info, input_bfd, input_section,
}
else if (h->root.type == bfd_link_hash_undefweak)
relocation = 0;
else if (info->shared
else if (!info->executable
&& !info->no_undefined
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
relocation = 0;

2
bfd/elf32-sparc.c
View file

@ -2209,7 +2209,7 @@ elf32_sparc_relocate_section (output_bfd, info, input_bfd, input_section,
}
else if (h->root.type == bfd_link_hash_undefweak)
;
else if (info->shared
else if (!info->executable
&& !info->no_undefined
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
;

2
bfd/elf64-alpha.c
View file

@ -4504,7 +4504,7 @@ elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section,
}
else if (h->root.root.type == bfd_link_hash_undefweak)
undef_weak_ref = TRUE;
else if (info->shared
else if (!info->executable
&& !info->no_undefined
&& ELF_ST_VISIBILITY (h->root.other) == STV_DEFAULT)
;

2
bfd/elf64-ppc.c
View file

@ -7195,7 +7195,7 @@ ppc64_elf_relocate_section (bfd *output_bfd,
}
else if (h->root.type == bfd_link_hash_undefweak)
;
else if (info->shared
else if (!info->executable
&& !info->no_undefined
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
;

2
bfd/elf64-s390.c
View file

@ -2326,7 +2326,7 @@ elf_s390_relocate_section (output_bfd, info, input_bfd, input_section,
}
else if (h->root.type == bfd_link_hash_undefweak)
relocation = 0;
else if (info->shared
else if (!info->executable
&& !info->no_undefined
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
relocation = 0;

2
bfd/elf64-sparc.c
View file

@ -2097,7 +2097,7 @@ sparc64_elf_relocate_section (output_bfd, info, input_bfd, input_section,
}
else if (h->root.type == bfd_link_hash_undefweak)
;
else if (info->shared
else if (!info->executable
&& !info->no_undefined
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
;

2
bfd/elf64-x86-64.c
View file

@ -1852,7 +1852,7 @@ elf64_x86_64_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
}
else if (h->root.type == bfd_link_hash_undefweak)
relocation = 0;
else if (info->shared
else if (!info->executable
&& !info->no_undefined
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
relocation = 0;

110
bfd/elfxx-ia64.c
View file

@ -143,6 +143,7 @@ struct elfNN_ia64_link_hash_table
asection *got_sec; /* the linkage table section (or NULL) */
asection *rel_got_sec; /* dynamic relocation section for same */
asection *fptr_sec; /* function descriptor table (or NULL) */
asection *rel_fptr_sec; /* dynamic relocation section for same */
asection *plt_sec; /* the primary plt section (or NULL) */
asection *pltoff_sec; /* private descriptors for plt (or NULL) */
asection *rel_pltoff_sec; /* dynamic relocation section for same */
@ -1652,7 +1653,7 @@ elfNN_ia64_dynamic_symbol_p (h, info)
|| h->root.type == bfd_link_hash_defweak)
return TRUE;
if ((info->shared && (!info->symbolic || info->allow_shlib_undefined))
if ((!info->executable && (!info->symbolic || info->allow_shlib_undefined))
|| ((h->elf_link_hash_flags
& (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR))
== (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR)))
@ -2063,7 +2064,7 @@ get_got (abfd, info, ia64_info)
static asection *
get_fptr (abfd, info, ia64_info)
bfd *abfd;
struct bfd_link_info *info ATTRIBUTE_UNUSED;
struct bfd_link_info *info;
struct elfNN_ia64_link_hash_table *ia64_info;
{
asection *fptr;
@ -2083,7 +2084,7 @@ get_fptr (abfd, info, ia64_info)
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_READONLY
| (info->pie ? 0 : SEC_READONLY)
| SEC_LINKER_CREATED))
|| !bfd_set_section_alignment (abfd, fptr, 4))
{
@ -2092,6 +2093,26 @@ get_fptr (abfd, info, ia64_info)
}
ia64_info->fptr_sec = fptr;
if (info->pie)
{
asection *fptr_rel;
fptr_rel = bfd_make_section(abfd, ".rela.opd");
if (fptr_rel == NULL
|| !bfd_set_section_flags (abfd, fptr_rel,
(SEC_ALLOC | SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
| SEC_READONLY))
|| !bfd_set_section_alignment (abfd, fptr_rel, 3))
{
BFD_ASSERT (0);
return NULL;
}
ia64_info->rel_fptr_sec = fptr_rel;
}
}
return fptr;
@ -2278,7 +2299,7 @@ elfNN_ia64_check_relocs (abfd, info, sec, relocs)
have yet been processed. Do something with what we know, as
this may help reduce memory usage and processing time later. */
maybe_dynamic = FALSE;
if (h && ((info->shared
if (h && ((!info->executable
&& (!info->symbolic || info->allow_shlib_undefined))
|| ! (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)
|| h->root.type == bfd_link_hash_defweak
@ -2638,7 +2659,7 @@ allocate_fptr (dyn_i, data)
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
if ((x->info->shared
if ((!x->info->executable
&& (!h
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak))
@ -2788,10 +2809,11 @@ allocate_dynrel_entries (dyn_i, data)
switch (rent->type)
{
case R_IA64_FPTR64LSB:
/* Allocate one iff !want_fptr, which by this point will
be true only if we're actually allocating one statically
in the main executable. */
if (dyn_i->want_fptr)
/* Allocate one iff !want_fptr and not PIE, which by this point
will be true only if we're actually allocating one statically
in the main executable. Position independent executables
need a relative reloc. */
if (dyn_i->want_fptr && !x->info->pie)
continue;
break;
case R_IA64_PCREL64LSB:
@ -2828,13 +2850,24 @@ allocate_dynrel_entries (dyn_i, data)
|| (dyn_i->want_ltoff_fptr
&& dyn_i->h
&& dyn_i->h->dynindx != -1))
{
if (!dyn_i->want_ltoff_fptr
|| !x->info->pie
|| dyn_i->h == NULL
|| dyn_i->h->root.type != bfd_link_hash_undefweak)
ia64_info->rel_got_sec->_raw_size += sizeof (ElfNN_External_Rela);
}
if ((dynamic_symbol || shared) && dyn_i->want_tprel)
ia64_info->rel_got_sec->_raw_size += sizeof (ElfNN_External_Rela);
if (dynamic_symbol && dyn_i->want_dtpmod)
ia64_info->rel_got_sec->_raw_size += sizeof (ElfNN_External_Rela);
if (dynamic_symbol && dyn_i->want_dtprel)
ia64_info->rel_got_sec->_raw_size += sizeof (ElfNN_External_Rela);
if (ia64_info->rel_fptr_sec && dyn_i->want_fptr)
{
if (dyn_i->h == NULL || dyn_i->h->root.type != bfd_link_hash_undefweak)
ia64_info->rel_fptr_sec->_raw_size += sizeof (ElfNN_External_Rela);
}
if (!resolved_zero && dyn_i->want_pltoff)
{
@ -3444,7 +3477,7 @@ set_got_entry (abfd, info, dyn_i, dynindx, addend, value, dyn_r_type)
bfd_put_64 (abfd, value, got_sec->contents + got_offset);
/* Install a dynamic relocation if needed. */
if ((info->shared
if (((info->shared
&& (!dyn_i->h
|| ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
|| dyn_i->h->root.type != bfd_link_hash_undefweak)
@ -3452,6 +3485,10 @@ set_got_entry (abfd, info, dyn_i, dynindx, addend, value, dyn_r_type)
|| elfNN_ia64_dynamic_symbol_p (dyn_i->h, info)
|| elfNN_ia64_aix_vec (abfd->xvec)
|| (dynindx != -1 && dyn_r_type == R_IA64_FPTR64LSB))
&& (!dyn_i->want_ltoff_fptr
|| !info->pie
|| !dyn_i->h
|| dyn_i->h->root.type != bfd_link_hash_undefweak))
{
if (dynindx == -1
&& dyn_r_type != R_IA64_TPREL64LSB
@ -3530,6 +3567,24 @@ set_fptr_entry (abfd, info, dyn_i, value)
bfd_put_64 (abfd, value, fptr_sec->contents + dyn_i->fptr_offset);
bfd_put_64 (abfd, _bfd_get_gp_value (abfd),
fptr_sec->contents + dyn_i->fptr_offset + 8);
if (ia64_info->rel_fptr_sec)
{
Elf_Internal_Rela outrel;
bfd_byte *loc;
if (bfd_little_endian (abfd))
outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTLSB);
else
outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTMSB);
outrel.r_addend = value;
outrel.r_offset = (fptr_sec->output_section->vma
+ fptr_sec->output_offset
+ dyn_i->fptr_offset);
loc = ia64_info->rel_fptr_sec->contents;
loc += ia64_info->rel_fptr_sec->reloc_count++
* sizeof (ElfNN_External_Rela);
bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
}
}
/* Return the descriptor's address. */
@ -3986,7 +4041,7 @@ elfNN_ia64_relocate_section (output_bfd, info, input_bfd, input_section,
}
else if (h->root.type == bfd_link_hash_undefweak)
undef_weak_ref = TRUE;
else if (info->shared
else if (! info->executable
&& !info->no_undefined
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
;
@ -4146,14 +4201,36 @@ elfNN_ia64_relocate_section (output_bfd, info, input_bfd, input_section,
if (!undef_weak_ref)
value = set_fptr_entry (output_bfd, info, dyn_i, value);
}
else
if (!dyn_i->want_fptr || info->pie)
{
long dynindx;
unsigned int dyn_r_type = r_type;
bfd_vma addend = rel->r_addend;
/* Otherwise, we expect the dynamic linker to create
the entry. */
if (h)
if (dyn_i->want_fptr)
{
if (r_type == R_IA64_FPTR64I)
{
/* We can't represent this without a dynamic symbol.
Adjust the relocation to be against an output
section symbol, which are always present in the
dynamic symbol table. */
/* ??? People shouldn't be doing non-pic code in
shared libraries. Hork. */
(*_bfd_error_handler)
(_("%s: linking non-pic code in a position independent executable"),
bfd_archive_filename (input_bfd));
ret_val = FALSE;
continue;
}
dynindx = 0;
addend = value;
dyn_r_type = r_type + R_IA64_REL64LSB - R_IA64_FPTR64LSB;
}
else if (h)
{
if (h->dynindx != -1)
dynindx = h->dynindx;
@ -4161,17 +4238,18 @@ elfNN_ia64_relocate_section (output_bfd, info, input_bfd, input_section,
dynindx = (_bfd_elf_link_lookup_local_dynindx
(info, h->root.u.def.section->owner,
global_sym_index (h)));
value = 0;
}
else
{
dynindx = (_bfd_elf_link_lookup_local_dynindx
(info, input_bfd, (long) r_symndx));
value = 0;
}
elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
srel, rel->r_offset, r_type,
dynindx, rel->r_addend);
value = 0;
srel, rel->r_offset, dyn_r_type,
dynindx, addend);
}
r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);

8
ld/ChangeLog
View file

@ -1,3 +1,11 @@
2003-07-02 Jakub Jelinek <jakub@redhat.com>
* emulparams/elf64_ia64.sh (OTHER_READONLY_SECTIONS): Don't include
.opd if -pie.
(OTHER_READWRITE_SECTIONS): Include .opd if -pie.
* scripttempl/elf.sc: Use SHLIB_DATA_ADDR instead of DATA_ADDR
if -pie.
2003-06-28 Alan Modra <amodra@bigpond.net.au>
* ld.h: Convert to C90, remove unnecessary prototypes and casts.

9
ld/emulparams/elf64_ia64.sh
View file

@ -22,7 +22,12 @@ OTHER_GOT_SECTIONS="
.IA_64.pltoff ${RELOCATING-0} : { *(.IA_64.pltoff) }"
OTHER_PLT_RELOC_SECTIONS="
.rela.IA_64.pltoff ${RELOCATING-0} : { *(.rela.IA_64.pltoff) }"
OTHER_READONLY_SECTIONS="
.opd ${RELOCATING-0} : { *(.opd) }
OTHER_READONLY_SECTIONS=
OTHER_READWRITE_SECTIONS=
test -z "$CREATE_PIE" && OTHER_READONLY_SECTIONS="
.opd ${RELOCATING-0} : { *(.opd) }"
test -n "$CREATE_PIE" && OTHER_READWRITE_SECTIONS="
.opd ${RELOCATING-0} : { *(.opd) }"
OTHER_READONLY_SECTIONS="${OTHER_READONLY_SECTIONS}
.IA_64.unwind_info ${RELOCATING-0} : { *(.IA_64.unwind_info${RELOCATING+* .gnu.linkonce.ia64unwi.*}) }
.IA_64.unwind ${RELOCATING-0} : { *(.IA_64.unwind${RELOCATING+* .gnu.linkonce.ia64unw.*}) }"

7
ld/scripttempl/elf.sc
View file

@ -72,8 +72,8 @@ if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHI
test -z "${ELFSIZE}" && ELFSIZE=32
test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8"
test "$LD_FLAG" = "N" && DATA_ADDR=.
test -n "$CREATE_SHLIB" && test -n "$SHLIB_DATA_ADDR" && COMMONPAGESIZE=""
test -z "$CREATE_SHLIB" && test -n "$DATA_ADDR" && COMMONPAGESIZE=""
test -n "$CREATE_SHLIB$CREATE_PIE" && test -n "$SHLIB_DATA_ADDR" && COMMONPAGESIZE=""
test -z "$CREATE_SHLIB$CREATE_PIE" && test -n "$DATA_ADDR" && COMMONPAGESIZE=""
DATA_SEGMENT_ALIGN="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"
DATA_SEGMENT_END=""
if test -n "${COMMONPAGESIZE}"; then
@ -285,8 +285,9 @@ cat <<EOF
/* Adjust the address for the data segment. We want to adjust up to
the same address within the page on the next page up. */
${CREATE_SHLIB-${RELOCATING+. = ${DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}
${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+. = ${DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}}
${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}
${CREATE_PIE+${RELOCATING+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}
/* Ensure the __preinit_array_start label is properly aligned. We
could instead move the label definition inside the section, but