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Update IFUNC patch to improve functionality. Fix typo in binutils spec.

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This commit is contained in:
Nicholas Clifton 2009-04-08 16:13:33 +00:00
parent 55c6ab19cf
commit 969efb614f
2 changed files with 334 additions and 258 deletions
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binutils-2.19.51.0.2-ifunc.patch
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@ -1,6 +1,6 @@
diff -rcp binutils-2.19.51.0.2.orig/bfd/bfd-in2.h binutils-2.19.51.0.2/bfd/bfd-in2.h
*** binutils-2.19.51.0.2.orig/bfd/bfd-in2.h 2009-02-06 09:19:47.000000000 +0000
--- binutils-2.19.51.0.2/bfd/bfd-in2.h 2009-02-10 12:27:00.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/bfd/bfd-in2.h ./bfd/bfd-in2.h
*** ../delme/binutils-2.19.51.0.2/bfd/bfd-in2.h 2009-02-04 18:21:50.000000000 +0000
--- ./bfd/bfd-in2.h 2009-03-05 11:59:49.000000000 +0000
*************** typedef struct bfd_symbol
*** 4568,4573 ****
--- 4568,4579 ----
@ -16,9 +16,9 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/bfd-in2.h binutils-2.19.51.0.2/bfd/bfd-i
flagword flags;
/* A pointer to the section to which this symbol is
diff -rcp binutils-2.19.51.0.2.orig/bfd/elf32-i386.c binutils-2.19.51.0.2/bfd/elf32-i386.c
*** binutils-2.19.51.0.2.orig/bfd/elf32-i386.c 2009-02-06 09:19:53.000000000 +0000
--- binutils-2.19.51.0.2/bfd/elf32-i386.c 2009-03-02 12:26:12.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/bfd/elf32-i386.c ./bfd/elf32-i386.c
*** ../delme/binutils-2.19.51.0.2/bfd/elf32-i386.c 2009-02-04 18:21:50.000000000 +0000
--- ./bfd/elf32-i386.c 2009-04-08 16:11:48.000000000 +0100
*************** elf_i386_tls_transition (struct bfd_link
*** 1206,1211 ****
--- 1206,1230 ----
@ -48,26 +48,8 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf32-i386.c binutils-2.19.51.0.2/bfd/el
calculate needed space in the global offset table, procedure linkage
table, and dynamic reloc sections. */
*************** elf_i386_check_relocs (bfd *abfd,
*** 1465,1471 ****
&& (sec->flags & SEC_ALLOC) != 0
&& h != NULL
&& (h->root.type == bfd_link_hash_defweak
! || !h->def_regular)))
{
struct elf_i386_dyn_relocs *p;
struct elf_i386_dyn_relocs **head;
--- 1484,1491 ----
&& (sec->flags & SEC_ALLOC) != 0
&& h != NULL
&& (h->root.type == bfd_link_hash_defweak
! || !h->def_regular))
! || is_indirect_symbol (abfd, h))
{
struct elf_i386_dyn_relocs *p;
struct elf_i386_dyn_relocs **head;
*************** elf_i386_check_relocs (bfd *abfd,
*** 1483,1488 ****
--- 1503,1514 ----
--- 1502,1513 ----
if (sreloc == NULL)
return FALSE;
@ -81,19 +63,30 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf32-i386.c binutils-2.19.51.0.2/bfd/el
/* If this is a global symbol, we count the number of
*************** allocate_dynrelocs (struct elf_link_hash
*** 1831,1836 ****
--- 1856,1862 ----
struct elf_i386_link_hash_table *htab;
struct elf_i386_link_hash_entry *eh;
struct elf_i386_dyn_relocs *p;
+ bfd_boolean use_indirect_section = FALSE;
if (h->root.type == bfd_link_hash_indirect)
return TRUE;
*************** allocate_dynrelocs (struct elf_link_hash
*** 2052,2057 ****
--- 2078,2092 ----
--- 2078,2093 ----
}
}
}
+ else if (is_indirect_symbol (info->output_bfd, h))
+ {
+ if (h->dynindx == -1
+ else if (is_indirect_symbol (info->output_bfd, h)
+ && h->dynindx == -1
+ && ! h->forced_local)
+ {
+ if (! bfd_elf_link_record_dynamic_symbol (info, h))
+ if (bfd_elf_link_record_dynamic_symbol (info, h)
+ && h->dynindx != -1)
+ use_indirect_section = TRUE;
+ else
+ return FALSE;
+ }
+ }
else if (ELIMINATE_COPY_RELOCS)
{
@ -107,39 +100,32 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf32-i386.c binutils-2.19.51.0.2/bfd/el
BFD_ASSERT (sreloc != NULL);
sreloc->size += p->count * sizeof (Elf32_External_Rel);
--- 2125,2138 ----
--- 2126,2135 ----
{
asection *sreloc;
! if (! info->shared
! && is_indirect_symbol (info->output_bfd, h))
! {
! if (use_indirect_section)
! sreloc = elf_section_data (p->sec)->indirect_relocs;
! elf_tdata (info->output_bfd)->has_ifunc_relocs = TRUE;
! }
! else
! sreloc = elf_section_data (p->sec)->sreloc;
BFD_ASSERT (sreloc != NULL);
sreloc->size += p->count * sizeof (Elf32_External_Rel);
*************** elf_i386_relocate_section (bfd *output_b
*** 2902,2908 ****
&& ((h->def_dynamic
&& !h->def_regular)
|| h->root.type == bfd_link_hash_undefweak
! || h->root.type == bfd_link_hash_undefined)))
{
Elf_Internal_Rela outrel;
bfd_byte *loc;
--- 2944,2951 ----
&& ((h->def_dynamic
&& !h->def_regular)
|| h->root.type == bfd_link_hash_undefweak
! || h->root.type == bfd_link_hash_undefined))
! || is_indirect_symbol (output_bfd, h))
{
Elf_Internal_Rela outrel;
bfd_byte *loc;
*** 2894,2899 ****
--- 2933,2944 ----
|| h->root.type != bfd_link_hash_undefweak)
&& (r_type != R_386_PC32
|| !SYMBOL_CALLS_LOCAL (info, h)))
+ || (! info->shared
+ && h != NULL
+ && h->dynindx != -1
+ && ! h->forced_local
+ && ((struct elf_i386_link_hash_entry *) h)->dyn_relocs != NULL
+ && is_indirect_symbol (output_bfd, h))
|| (ELIMINATE_COPY_RELOCS
&& !info->shared
&& h != NULL
*************** elf_i386_relocate_section (bfd *output_b
*** 2942,2948 ****
outrel.r_info = ELF32_R_INFO (0, R_386_RELATIVE);
@ -149,37 +135,75 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf32-i386.c binutils-2.19.51.0.2/bfd/el
BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL);
--- 2985,2994 ----
--- 2987,3002 ----
outrel.r_info = ELF32_R_INFO (0, R_386_RELATIVE);
}
! if (! info->shared && is_indirect_symbol (output_bfd, h))
! if (! info->shared
! && h != NULL
! && h->dynindx != -1
! && ! h->forced_local
! && is_indirect_symbol (output_bfd, h)
! && elf_section_data (input_section)->indirect_relocs != NULL
! && elf_section_data (input_section)->indirect_relocs->contents != NULL)
! sreloc = elf_section_data (input_section)->indirect_relocs;
! else
! sreloc = elf_section_data (input_section)->sreloc;
BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL);
*************** elf_i386_relocate_section (bfd *output_b
*** 2955,2961 ****
not want to fiddle with the addend. Otherwise, we
need to include the symbol value so that it becomes
an addend for the dynamic reloc. */
! if (! relocate)
continue;
*************** elf_i386_hash_symbol (struct elf_link_ha
*** 4068,4073 ****
--- 4122,4146 ----
return _bfd_elf_hash_symbol (h);
}
break;
--- 3001,3007 ----
not want to fiddle with the addend. Otherwise, we
need to include the symbol value so that it becomes
an addend for the dynamic reloc. */
! if (! relocate || is_indirect_symbol (output_bfd, h))
continue;
}
break;
+ /* Hook called by the linker routine which adds symbols from an object
+ file. */
+
+ static bfd_boolean
+ elf_i386_add_symbol_hook (bfd *abfd,
+ struct bfd_link_info *info,
+ Elf_Internal_Sym *sym,
+ const char **namep,
+ flagword *flagsp,
+ asection **secp,
+ bfd_vma *valp)
+ {
+ if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
+ elf_tdata (info->output_bfd)->has_ifunc_symbols = TRUE;
+
+ return _bfd_elf_add_sharable_symbol (abfd, info, sym, namep, flagsp,
+ secp, valp);
+ }
+
#define TARGET_LITTLE_SYM bfd_elf32_i386_vec
#define TARGET_LITTLE_NAME "elf32-i386"
#define ELF_ARCH bfd_arch_i386
*************** elf_i386_hash_symbol (struct elf_link_ha
*** 4113,4121 ****
#define elf_backend_plt_sym_val elf_i386_plt_sym_val
#define elf_backend_hash_symbol elf_i386_hash_symbol
! #define elf_backend_add_symbol_hook \
! _bfd_elf_add_sharable_symbol
! #define elf_backend_section_from_bfd_section \
_bfd_elf_sharable_section_from_bfd_section
#define elf_backend_symbol_processing \
_bfd_elf_sharable_symbol_processing
--- 4186,4194 ----
#define elf_backend_plt_sym_val elf_i386_plt_sym_val
#define elf_backend_hash_symbol elf_i386_hash_symbol
! #define elf_backend_add_symbol_hook elf_i386_add_symbol_hook
!
! #define elf_backend_section_from_bfd_section \
_bfd_elf_sharable_section_from_bfd_section
#define elf_backend_symbol_processing \
_bfd_elf_sharable_symbol_processing
*************** elf_i386_hash_symbol (struct elf_link_ha
*** 4128,4133 ****
--- 4174,4182 ----
--- 4201,4209 ----
#define elf_backend_merge_symbol \
_bfd_elf_sharable_merge_symbol
@ -206,7 +230,7 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf32-i386.c binutils-2.19.51.0.2/bfd/el
#ifdef OLD_FREEBSD_ABI_LABEL
/* The ABI label supported by FreeBSD <= 4.0 is quite nonstandard. */
memcpy (&i_ehdrp->e_ident[EI_ABIVERSION], "FreeBSD", 8);
--- 4193,4202 ----
--- 4220,4229 ----
executables and (for simplicity) also all other object files. */
static void
@ -217,12 +241,27 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf32-i386.c binutils-2.19.51.0.2/bfd/el
#ifdef OLD_FREEBSD_ABI_LABEL
/* The ABI label supported by FreeBSD <= 4.0 is quite nonstandard. */
memcpy (&i_ehdrp->e_ident[EI_ABIVERSION], "FreeBSD", 8);
diff -rcp binutils-2.19.51.0.2.orig/bfd/elf64-x86-64.c binutils-2.19.51.0.2/bfd/elf64-x86-64.c
*** binutils-2.19.51.0.2.orig/bfd/elf64-x86-64.c 2009-02-06 09:19:46.000000000 +0000
--- binutils-2.19.51.0.2/bfd/elf64-x86-64.c 2009-03-02 12:43:47.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/bfd/elf64-x86-64.c ./bfd/elf64-x86-64.c
*** ../delme/binutils-2.19.51.0.2/bfd/elf64-x86-64.c 2009-02-04 18:21:50.000000000 +0000
--- ./bfd/elf64-x86-64.c 2009-04-08 16:07:11.000000000 +0100
*************** static reloc_howto_type x86_64_elf_howto
*** 161,166 ****
--- 161,172 ----
FALSE)
};
+ #define IS_X86_64_PCREL_TYPE(TYPE) \
+ ( ((TYPE) == R_X86_64_PC8) \
+ || ((TYPE) == R_X86_64_PC16) \
+ || ((TYPE) == R_X86_64_PC32) \
+ || ((TYPE) == R_X86_64_PC64))
+
/* Map BFD relocs to the x86_64 elf relocs. */
struct elf_reloc_map
{
*************** elf64_x86_64_tls_transition (struct bfd_
*** 987,992 ****
--- 987,1011 ----
--- 993,1017 ----
return TRUE;
}
@ -249,52 +288,56 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf64-x86-64.c binutils-2.19.51.0.2/bfd/
calculate needed space in the global offset table, procedure
linkage table, and dynamic reloc sections. */
*************** elf64_x86_64_check_relocs (bfd *abfd, st
*** 1268,1274 ****
If on the other hand, we are creating an executable, we
may need to keep relocations for symbols satisfied by a
dynamic library if we manage to avoid copy relocs for the
! symbol. */
*** 1013,1019 ****
sym_hashes = elf_sym_hashes (abfd);
if ((info->shared
&& (sec->flags & SEC_ALLOC) != 0
--- 1287,1296 ----
If on the other hand, we are creating an executable, we
may need to keep relocations for symbols satisfied by a
dynamic library if we manage to avoid copy relocs for the
! symbol.
sreloc = NULL;
!
! Also we must keep any relocations against GNU_IFUNC symbols
! as they will be evaluated at load time. */
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
{
--- 1038,1044 ----
sym_hashes = elf_sym_hashes (abfd);
sreloc = NULL;
!
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
{
*************** elf64_x86_64_check_relocs (bfd *abfd, st
*** 1269,1281 ****
may need to keep relocations for symbols satisfied by a
dynamic library if we manage to avoid copy relocs for the
symbol. */
-
if ((info->shared
&& (sec->flags & SEC_ALLOC) != 0
*************** elf64_x86_64_check_relocs (bfd *abfd, st
*** 1285,1291 ****
! && (((r_type != R_X86_64_PC8)
! && (r_type != R_X86_64_PC16)
! && (r_type != R_X86_64_PC32)
! && (r_type != R_X86_64_PC64))
|| (h != NULL
&& (! SYMBOLIC_BIND (info, h)
|| h->root.type == bfd_link_hash_defweak
--- 1294,1302 ----
may need to keep relocations for symbols satisfied by a
dynamic library if we manage to avoid copy relocs for the
symbol. */
if ((info->shared
&& (sec->flags & SEC_ALLOC) != 0
&& h != NULL
&& (h->root.type == bfd_link_hash_defweak
! || !h->def_regular)))
{
struct elf64_x86_64_dyn_relocs *p;
struct elf64_x86_64_dyn_relocs **head;
--- 1307,1314 ----
&& (sec->flags & SEC_ALLOC) != 0
&& h != NULL
&& (h->root.type == bfd_link_hash_defweak
! || !h->def_regular))
! || is_indirect_symbol (abfd, h))
{
struct elf64_x86_64_dyn_relocs *p;
struct elf64_x86_64_dyn_relocs **head;
! && (! IS_X86_64_PCREL_TYPE (r_type)
|| (h != NULL
&& (! SYMBOLIC_BIND (info, h)
|| h->root.type == bfd_link_hash_defweak
*************** elf64_x86_64_check_relocs (bfd *abfd, st
*** 1303,1308 ****
--- 1326,1337 ----
--- 1324,1335 ----
if (sreloc == NULL)
return FALSE;
+
+ /* Create the ifunc section as well, even if we have not encountered a
+ indirect function symbol yet. We may not even see one in the input
+ /* Create the ifunc section, even if we will not encounter an
+ indirect function symbol. We may not even see one in the input
+ object file, but we can still encounter them in libraries. */
+ (void) _bfd_elf_make_ifunc_reloc_section
+ (abfd, sec, htab->elf.dynobj, 2);
@ -303,7 +346,7 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf64-x86-64.c binutils-2.19.51.0.2/bfd/
/* If this is a global symbol, we count the number of
*************** elf64_x86_64_check_relocs (bfd *abfd, st
*** 1334,1339 ****
--- 1363,1369 ----
--- 1361,1367 ----
if (p == NULL || p->sec != sec)
{
bfd_size_type amt = sizeof *p;
@ -311,6 +354,36 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf64-x86-64.c binutils-2.19.51.0.2/bfd/
p = ((struct elf64_x86_64_dyn_relocs *)
bfd_alloc (htab->elf.dynobj, amt));
if (p == NULL)
*************** elf64_x86_64_check_relocs (bfd *abfd, st
*** 1346,1355 ****
}
p->count += 1;
! if (r_type == R_X86_64_PC8
! || r_type == R_X86_64_PC16
! || r_type == R_X86_64_PC32
! || r_type == R_X86_64_PC64)
p->pc_count += 1;
}
break;
--- 1374,1380 ----
}
p->count += 1;
! if (IS_X86_64_PCREL_TYPE (r_type))
p->pc_count += 1;
}
break;
*************** allocate_dynrelocs (struct elf_link_hash
*** 1666,1671 ****
--- 1691,1697 ----
struct elf64_x86_64_link_hash_table *htab;
struct elf64_x86_64_link_hash_entry *eh;
struct elf64_x86_64_dyn_relocs *p;
+ bfd_boolean use_indirect_section = FALSE;
if (h->root.type == bfd_link_hash_indirect)
return TRUE;
*************** allocate_dynrelocs (struct elf_link_hash
*** 1744,1750 ****
&& !info->shared
@ -320,7 +393,7 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf64-x86-64.c binutils-2.19.51.0.2/bfd/
else if (h->got.refcount > 0)
{
asection *s;
--- 1774,1782 ----
--- 1770,1778 ----
&& !info->shared
&& h->dynindx == -1
&& elf64_x86_64_hash_entry (h)->tls_type == GOT_TLS_IE)
@ -345,7 +418,7 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf64-x86-64.c binutils-2.19.51.0.2/bfd/
else if (ELIMINATE_COPY_RELOCS)
{
/* For the non-shared case, discard space for relocs against
--- 1875,1892 ----
--- 1871,1891 ----
/* Make sure undefined weak symbols are output as a dynamic
symbol in PIEs. */
else if (h->dynindx == -1
@ -354,11 +427,14 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf64-x86-64.c binutils-2.19.51.0.2/bfd/
! return FALSE;
}
}
+ else if (is_indirect_symbol (info->output_bfd, h))
+ else if (is_indirect_symbol (info->output_bfd, h)
+ && h->dynindx == -1
+ && ! h->forced_local)
+ {
+ if (h->dynindx == -1
+ && ! h->forced_local
+ && ! bfd_elf_link_record_dynamic_symbol (info, h))
+ if (bfd_elf_link_record_dynamic_symbol (info, h)
+ && h->dynindx != -1)
+ use_indirect_section = TRUE;
+ else
+ return FALSE;
+ }
else if (ELIMINATE_COPY_RELOCS)
@ -377,7 +453,7 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf64-x86-64.c binutils-2.19.51.0.2/bfd/
/* If that succeeded, we know we'll be keeping all the
relocs. */
--- 1903,1911 ----
--- 1902,1910 ----
/* Make sure this symbol is output as a dynamic symbol.
Undefined weak syms won't yet be marked as dynamic. */
if (h->dynindx == -1
@ -396,39 +472,71 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf64-x86-64.c binutils-2.19.51.0.2/bfd/
BFD_ASSERT (sreloc != NULL);
--- 1923,1936 ----
--- 1922,1931 ----
{
asection * sreloc;
! if (! info->shared
! && is_indirect_symbol (info->output_bfd, h))
! {
! if (use_indirect_section)
! sreloc = elf_section_data (p->sec)->indirect_relocs;
! elf_tdata (info->output_bfd)->has_ifunc_relocs = TRUE;
! }
! else
! sreloc = elf_section_data (p->sec)->sreloc;
BFD_ASSERT (sreloc != NULL);
*************** elf64_x86_64_relocate_section (bfd *outp
*** 2704,2710 ****
&& ((h->def_dynamic
&& !h->def_regular)
|| h->root.type == bfd_link_hash_undefweak
! || h->root.type == bfd_link_hash_undefined)))
*** 2691,2701 ****
&& (h == NULL
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak)
! && ((r_type != R_X86_64_PC8
! && r_type != R_X86_64_PC16
! && r_type != R_X86_64_PC32
! && r_type != R_X86_64_PC64)
! || !SYMBOL_CALLS_LOCAL (info, h)))
|| (ELIMINATE_COPY_RELOCS
&& !info->shared
&& h != NULL
--- 2728,2741 ----
&& (h == NULL
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak)
! && (! IS_X86_64_PCREL_TYPE (r_type)
! || ! SYMBOL_CALLS_LOCAL (info, h)))
! || (! info->shared
! && h != NULL
! && h->dynindx != -1
! && ! h->forced_local
! && ((struct elf64_x86_64_link_hash_entry *) h)->dyn_relocs != NULL
! && is_indirect_symbol (output_bfd, h))
|| (ELIMINATE_COPY_RELOCS
&& !info->shared
&& h != NULL
*************** elf64_x86_64_relocate_section (bfd *outp
*** 2735,2747 ****
become local. */
else if (h != NULL
&& h->dynindx != -1
! && (r_type == R_X86_64_PC8
! || r_type == R_X86_64_PC16
! || r_type == R_X86_64_PC32
! || r_type == R_X86_64_PC64
! || !info->shared
! || !SYMBOLIC_BIND (info, h)
! || !h->def_regular))
{
Elf_Internal_Rela outrel;
bfd_byte *loc;
--- 2746,2753 ----
&& ((h->def_dynamic
&& !h->def_regular)
|| h->root.type == bfd_link_hash_undefweak
! || h->root.type == bfd_link_hash_undefined))
! || is_indirect_symbol (output_bfd, h))
outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
outrel.r_addend = rel->r_addend;
--- 2775,2784 ----
become local. */
else if (h != NULL
&& h->dynindx != -1
! && (IS_X86_64_PCREL_TYPE (r_type)
! || ! info->shared
! || ! SYMBOLIC_BIND (info, h)
! || ! h->def_regular))
{
Elf_Internal_Rela outrel;
bfd_byte *loc;
outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
outrel.r_addend = rel->r_addend;
*************** elf64_x86_64_relocate_section (bfd *outp
*** 2790,2796 ****
}
@ -438,37 +546,38 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf64-x86-64.c binutils-2.19.51.0.2/bfd/
BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL);
--- 2833,2842 ----
--- 2827,2842 ----
}
}
! if (! info->shared && is_indirect_symbol (output_bfd, h))
! if (! info->shared
! && h != NULL
! && h->dynindx != -1
! && ! h->forced_local
! && is_indirect_symbol (output_bfd, h)
! && elf_section_data (input_section)->indirect_relocs != NULL
! && elf_section_data (input_section)->indirect_relocs->contents != NULL)
! sreloc = elf_section_data (input_section)->indirect_relocs;
! else
! sreloc = elf_section_data (input_section)->sreloc;
BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL);
*************** elf64_x86_64_relocate_section (bfd *outp
*** 2802,2808 ****
not want to fiddle with the addend. Otherwise, we
need to include the symbol value so that it becomes
an addend for the dynamic reloc. */
! if (! relocate)
continue;
*************** elf64_x86_64_add_symbol_hook (bfd *abfd,
*** 3712,3717 ****
--- 3758,3766 ----
break;
}
--- 2848,2854 ----
not want to fiddle with the addend. Otherwise, we
need to include the symbol value so that it becomes
an addend for the dynamic reloc. */
! if (! relocate || is_indirect_symbol (output_bfd, h))
continue;
+ if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
+ elf_tdata (info->output_bfd)->has_ifunc_symbols = TRUE;
+
return _bfd_elf_add_sharable_symbol (abfd, info, sym, namep, flagsp,
secp, valp);
}
*************** static const struct bfd_elf_special_sect
*** 3958,3963 ****
--- 4004,4012 ----
--- 4007,4015 ----
#define elf_backend_hash_symbol \
elf64_x86_64_hash_symbol
@ -489,10 +598,10 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf64-x86-64.c binutils-2.19.51.0.2/bfd/
#undef elf64_bed
#define elf64_bed elf64_x86_64_fbsd_bed
--- 4019,4024 ----
diff -rcp binutils-2.19.51.0.2.orig/bfd/elf-bfd.h binutils-2.19.51.0.2/bfd/elf-bfd.h
*** binutils-2.19.51.0.2.orig/bfd/elf-bfd.h 2009-02-06 09:19:48.000000000 +0000
--- binutils-2.19.51.0.2/bfd/elf-bfd.h 2009-03-02 12:14:23.000000000 +0000
--- 4022,4027 ----
diff -rcp ../delme/binutils-2.19.51.0.2/bfd/elf-bfd.h ./bfd/elf-bfd.h
*** ../delme/binutils-2.19.51.0.2/bfd/elf-bfd.h 2009-02-04 18:21:50.000000000 +0000
--- ./bfd/elf-bfd.h 2009-03-13 16:48:34.000000000 +0000
*************** struct bfd_elf_section_data
*** 1294,1299 ****
--- 1294,1302 ----
@ -511,10 +620,10 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf-bfd.h binutils-2.19.51.0.2/bfd/elf-b
bfd_size_type build_id_size;
bfd_byte *build_id;
+ /* True if the bfd contains relocs that refer to symbols that
+ have the STT_GNU_IFUNC symbol type. Used to set the osabi
+ field in the ELF header structure. */
+ bfd_boolean has_ifunc_relocs;
+ /* True if the bfd contains symbols that have the STT_GNU_IFUNC
+ symbol type. Used to set the osabi field in the ELF header
+ structure. */
+ bfd_boolean has_ifunc_symbols;
+
/* An identifier used to distinguish different target
specific extensions to this structure. */
@ -531,9 +640,9 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf-bfd.h binutils-2.19.51.0.2/bfd/elf-b
/* Large common section. */
extern asection _bfd_elf_large_com_section;
diff -rcp binutils-2.19.51.0.2.orig/bfd/elf.c binutils-2.19.51.0.2/bfd/elf.c
*** binutils-2.19.51.0.2.orig/bfd/elf.c 2009-02-06 09:19:47.000000000 +0000
--- binutils-2.19.51.0.2/bfd/elf.c 2009-03-02 12:43:58.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/bfd/elf.c ./bfd/elf.c
*** ../delme/binutils-2.19.51.0.2/bfd/elf.c 2009-02-04 18:21:50.000000000 +0000
--- ./bfd/elf.c 2009-03-13 16:49:37.000000000 +0000
*************** Unable to find equivalent output section
*** 6508,6513 ****
--- 6508,6515 ----
@ -568,10 +677,10 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf.c binutils-2.19.51.0.2/bfd/elf.c
i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi;
+
+ /* To make things simpler for the loader on Linux systems we set the
+ osabi field to ELFOSABI_LINUX if the binary contains relocs that
+ reference symbols with the STT_GNU_IFUNC type. */
+ osabi field to ELFOSABI_LINUX if the binary contains symbols of
+ the STT_GNU_IFUNC type. */
+ if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE
+ && elf_tdata (abfd)->has_ifunc_relocs)
+ && elf_tdata (abfd)->has_ifunc_symbols)
+ i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX;
}
@ -586,9 +695,9 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elf.c binutils-2.19.51.0.2/bfd/elf.c
! return (type == STT_FUNC
! || type == STT_GNU_IFUNC);
}
diff -rcp binutils-2.19.51.0.2.orig/bfd/elfcode.h binutils-2.19.51.0.2/bfd/elfcode.h
*** binutils-2.19.51.0.2.orig/bfd/elfcode.h 2009-02-06 09:19:47.000000000 +0000
--- binutils-2.19.51.0.2/bfd/elfcode.h 2009-02-10 12:27:38.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/bfd/elfcode.h ./bfd/elfcode.h
*** ../delme/binutils-2.19.51.0.2/bfd/elfcode.h 2009-04-08 16:23:16.000000000 +0100
--- ./bfd/elfcode.h 2009-03-05 11:54:03.000000000 +0000
*************** elf_slurp_symbol_table (bfd *abfd, asymb
*** 1371,1376 ****
--- 1371,1379 ----
@ -601,9 +710,9 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elfcode.h binutils-2.19.51.0.2/bfd/elfco
}
if (dynamic)
diff -rcp binutils-2.19.51.0.2.orig/bfd/elflink.c binutils-2.19.51.0.2/bfd/elflink.c
*** binutils-2.19.51.0.2.orig/bfd/elflink.c 2009-02-06 09:19:47.000000000 +0000
--- binutils-2.19.51.0.2/bfd/elflink.c 2009-02-10 12:28:16.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/bfd/elflink.c ./bfd/elflink.c
*** ../delme/binutils-2.19.51.0.2/bfd/elflink.c 2009-02-04 18:21:50.000000000 +0000
--- ./bfd/elflink.c 2009-03-05 11:54:03.000000000 +0000
*************** _bfd_elf_adjust_dynamic_symbol (struct e
*** 2776,2781 ****
--- 2776,2788 ----
@ -693,29 +802,9 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/elflink.c binutils-2.19.51.0.2/bfd/elfli
+
+ return reloc_sec;
+ }
diff -rcp binutils-2.19.51.0.2.orig/bfd/elfxx-target.h binutils-2.19.51.0.2/bfd/elfxx-target.h
*** binutils-2.19.51.0.2.orig/bfd/elfxx-target.h 2009-02-06 09:19:48.000000000 +0000
--- binutils-2.19.51.0.2/bfd/elfxx-target.h 2009-03-02 12:05:55.000000000 +0000
*************** static struct elf_backend_data elfNN_bed
*** 742,748 ****
elf_backend_want_got_sym,
elf_backend_want_dynbss,
elf_backend_want_p_paddr_set_to_zero,
! elf_backend_default_execstack
};
/* Forward declaration for use when initialising alternative_target field. */
--- 742,748 ----
elf_backend_want_got_sym,
elf_backend_want_dynbss,
elf_backend_want_p_paddr_set_to_zero,
! elf_backend_default_execstack,
};
/* Forward declaration for use when initialising alternative_target field. */
diff -rcp binutils-2.19.51.0.2.orig/bfd/syms.c binutils-2.19.51.0.2/bfd/syms.c
*** binutils-2.19.51.0.2.orig/bfd/syms.c 2009-02-06 09:19:51.000000000 +0000
--- binutils-2.19.51.0.2/bfd/syms.c 2009-02-10 12:21:59.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/bfd/syms.c ./bfd/syms.c
*** ../delme/binutils-2.19.51.0.2/bfd/syms.c 2009-02-04 18:14:57.000000000 +0000
--- ./bfd/syms.c 2009-03-05 11:54:05.000000000 +0000
*************** CODE_FRAGMENT
*** 297,302 ****
--- 297,308 ----
@ -759,22 +848,9 @@ diff -rcp binutils-2.19.51.0.2.orig/bfd/syms.c binutils-2.19.51.0.2/bfd/syms.c
if (symbol->flags & BSF_WEAK)
{
/* If weak, determine if it's specifically an object
diff -rcp binutils-2.19.51.0.2.orig/binutils/objdump.c binutils-2.19.51.0.2/binutils/objdump.c
*** binutils-2.19.51.0.2.orig/binutils/objdump.c 2009-02-06 09:18:56.000000000 +0000
--- binutils-2.19.51.0.2/binutils/objdump.c 2009-02-09 17:36:51.000000000 +0000
*************** dump_reloc_set (bfd *abfd, asection *sec
*** 2804,2809 ****
--- 2804,2810 ----
if (q->addend)
{
bfd_signed_vma addend = q->addend;
+
if (addend < 0)
{
printf ("-0x");
diff -rcp binutils-2.19.51.0.2.orig/binutils/readelf.c binutils-2.19.51.0.2/binutils/readelf.c
*** binutils-2.19.51.0.2.orig/binutils/readelf.c 2009-02-06 09:18:59.000000000 +0000
--- binutils-2.19.51.0.2/binutils/readelf.c 2009-02-10 12:31:17.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/binutils/readelf.c ./binutils/readelf.c
*** ../delme/binutils-2.19.51.0.2/binutils/readelf.c 2009-02-04 18:21:50.000000000 +0000
--- ./binutils/readelf.c 2009-03-05 11:53:48.000000000 +0000
*************** dump_relocations (FILE *file,
*** 1247,1255 ****
@ -841,9 +917,9 @@ diff -rcp binutils-2.19.51.0.2.orig/binutils/readelf.c binutils-2.19.51.0.2/binu
snprintf (buff, sizeof (buff), _("<OS specific>: %d"), type);
}
else
diff -rcp binutils-2.19.51.0.2.orig/elfcpp/elfcpp.h binutils-2.19.51.0.2/elfcpp/elfcpp.h
*** binutils-2.19.51.0.2.orig/elfcpp/elfcpp.h 2009-02-06 09:18:19.000000000 +0000
--- binutils-2.19.51.0.2/elfcpp/elfcpp.h 2009-02-10 12:19:01.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/elfcpp/elfcpp.h ./elfcpp/elfcpp.h
*** ../delme/binutils-2.19.51.0.2/elfcpp/elfcpp.h 2009-02-04 18:14:52.000000000 +0000
--- ./elfcpp/elfcpp.h 2009-03-05 11:53:39.000000000 +0000
*************** enum STT
*** 476,481 ****
--- 476,482 ----
@ -854,9 +930,9 @@ diff -rcp binutils-2.19.51.0.2.orig/elfcpp/elfcpp.h binutils-2.19.51.0.2/elfcpp/
STT_HIOS = 12,
STT_LOPROC = 13,
STT_HIPROC = 15,
diff -rcp binutils-2.19.51.0.2.orig/gas/config/obj-elf.c binutils-2.19.51.0.2/gas/config/obj-elf.c
*** binutils-2.19.51.0.2.orig/gas/config/obj-elf.c 2009-02-06 09:19:19.000000000 +0000
--- binutils-2.19.51.0.2/gas/config/obj-elf.c 2009-02-10 12:26:06.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/gas/config/obj-elf.c ./gas/config/obj-elf.c
*** ../delme/binutils-2.19.51.0.2/gas/config/obj-elf.c 2009-02-04 18:21:50.000000000 +0000
--- ./gas/config/obj-elf.c 2009-03-05 11:53:52.000000000 +0000
*************** obj_elf_type (int ignore ATTRIBUTE_UNUSE
*** 1706,1711 ****
--- 1706,1725 ----
@ -880,9 +956,9 @@ diff -rcp binutils-2.19.51.0.2.orig/gas/config/obj-elf.c binutils-2.19.51.0.2/ga
#ifdef md_elf_symbol_type
else if ((type = md_elf_symbol_type (typename, sym, elfsym)) != -1)
;
diff -rcp binutils-2.19.51.0.2.orig/gas/config/tc-i386.c binutils-2.19.51.0.2/gas/config/tc-i386.c
*** binutils-2.19.51.0.2.orig/gas/config/tc-i386.c 2009-02-06 09:19:20.000000000 +0000
--- binutils-2.19.51.0.2/gas/config/tc-i386.c 2009-03-02 12:41:09.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/gas/config/tc-i386.c ./gas/config/tc-i386.c
*** ../delme/binutils-2.19.51.0.2/gas/config/tc-i386.c 2009-02-04 18:14:55.000000000 +0000
--- ./gas/config/tc-i386.c 2009-03-05 11:53:53.000000000 +0000
*************** tc_i386_fix_adjustable (fixS *fixP ATTRI
*** 2499,2504 ****
--- 2499,2508 ----
@ -896,9 +972,9 @@ diff -rcp binutils-2.19.51.0.2.orig/gas/config/tc-i386.c binutils-2.19.51.0.2/ga
#endif
return 1;
}
diff -rcp binutils-2.19.51.0.2.orig/gas/doc/as.texinfo binutils-2.19.51.0.2/gas/doc/as.texinfo
*** binutils-2.19.51.0.2.orig/gas/doc/as.texinfo 2009-02-06 09:19:18.000000000 +0000
--- binutils-2.19.51.0.2/gas/doc/as.texinfo 2009-02-10 12:25:39.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/gas/doc/as.texinfo ./gas/doc/as.texinfo
*** ../delme/binutils-2.19.51.0.2/gas/doc/as.texinfo 2009-01-06 17:48:21.000000000 +0000
--- ./gas/doc/as.texinfo 2009-03-05 11:53:52.000000000 +0000
*************** The types supported are:
*** 6277,6282 ****
--- 6277,6287 ----
@ -913,9 +989,9 @@ diff -rcp binutils-2.19.51.0.2.orig/gas/doc/as.texinfo binutils-2.19.51.0.2/gas/
@item STT_OBJECT
@itemx object
Mark the symbol as being a data object.
diff -rcp binutils-2.19.51.0.2.orig/gas/NEWS binutils-2.19.51.0.2/gas/NEWS
*** binutils-2.19.51.0.2.orig/gas/NEWS 2009-02-06 09:19:44.000000000 +0000
--- binutils-2.19.51.0.2/gas/NEWS 2009-02-09 18:10:40.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/gas/NEWS ./gas/NEWS
*** ../delme/binutils-2.19.51.0.2/gas/NEWS 2009-01-06 17:48:20.000000000 +0000
--- ./gas/NEWS 2009-03-05 11:54:03.000000000 +0000
***************
*** 1,5 ****
--- 1,10 ----
@ -929,9 +1005,9 @@ diff -rcp binutils-2.19.51.0.2.orig/gas/NEWS binutils-2.19.51.0.2/gas/NEWS
* Add support for Lattice Mico32 (lm32) architecture.
Changes in 2.19:
diff -rcp binutils-2.19.51.0.2.orig/gas/testsuite/gas/elf/type.e binutils-2.19.51.0.2/gas/testsuite/gas/elf/type.e
*** binutils-2.19.51.0.2.orig/gas/testsuite/gas/elf/type.e 2009-02-06 09:19:32.000000000 +0000
--- binutils-2.19.51.0.2/gas/testsuite/gas/elf/type.e 2009-02-10 12:31:27.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/gas/testsuite/gas/elf/type.e ./gas/testsuite/gas/elf/type.e
*** ../delme/binutils-2.19.51.0.2/gas/testsuite/gas/elf/type.e 2007-11-03 20:40:37.000000000 +0000
--- ./gas/testsuite/gas/elf/type.e 2009-03-05 11:53:56.000000000 +0000
***************
*** 1,5 ****
.: 0+0 1 FUNC LOCAL DEFAULT . function
@ -946,9 +1022,9 @@ diff -rcp binutils-2.19.51.0.2.orig/gas/testsuite/gas/elf/type.e binutils-2.19.5
.: 0+1 1 TLS LOCAL DEFAULT . tls_object
! ..: 0+2 1 NOTYPE LOCAL DEFAULT . notype
..: 0+1 1 (COMMON|OBJECT) GLOBAL DEFAULT COM common
diff -rcp binutils-2.19.51.0.2.orig/gas/testsuite/gas/elf/type.s binutils-2.19.51.0.2/gas/testsuite/gas/elf/type.s
*** binutils-2.19.51.0.2.orig/gas/testsuite/gas/elf/type.s 2009-02-06 09:19:32.000000000 +0000
--- binutils-2.19.51.0.2/gas/testsuite/gas/elf/type.s 2009-02-10 12:26:29.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/gas/testsuite/gas/elf/type.s ./gas/testsuite/gas/elf/type.s
*** ../delme/binutils-2.19.51.0.2/gas/testsuite/gas/elf/type.s 2007-11-03 20:40:37.000000000 +0000
--- ./gas/testsuite/gas/elf/type.s 2009-03-05 11:53:56.000000000 +0000
***************
*** 3,8 ****
--- 3,12 ----
@ -962,9 +1038,9 @@ diff -rcp binutils-2.19.51.0.2.orig/gas/testsuite/gas/elf/type.s binutils-2.19.5
.data
.type object,%object
.size object,1
diff -rcp binutils-2.19.51.0.2.orig/include/elf/common.h binutils-2.19.51.0.2/include/elf/common.h
*** binutils-2.19.51.0.2.orig/include/elf/common.h 2009-02-06 09:18:19.000000000 +0000
--- binutils-2.19.51.0.2/include/elf/common.h 2009-02-10 12:18:39.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/include/elf/common.h ./include/elf/common.h
*** ../delme/binutils-2.19.51.0.2/include/elf/common.h 2009-02-04 18:21:50.000000000 +0000
--- ./include/elf/common.h 2009-03-05 11:53:39.000000000 +0000
***************
*** 549,554 ****
--- 549,555 ----
@ -975,9 +1051,9 @@ diff -rcp binutils-2.19.51.0.2.orig/include/elf/common.h binutils-2.19.51.0.2/in
#define STT_HIOS 12 /* OS-specific semantics */
#define STT_LOPROC 13 /* Application-specific semantics */
#define STT_HIPROC 15 /* Application-specific semantics */
diff -rcp binutils-2.19.51.0.2.orig/ld/NEWS binutils-2.19.51.0.2/ld/NEWS
*** binutils-2.19.51.0.2.orig/ld/NEWS 2009-02-06 09:18:41.000000000 +0000
--- binutils-2.19.51.0.2/ld/NEWS 2009-02-09 18:11:13.000000000 +0000
diff -rcp ../delme/binutils-2.19.51.0.2/ld/NEWS ./ld/NEWS
*** ../delme/binutils-2.19.51.0.2/ld/NEWS 2009-04-08 16:22:56.000000000 +0100
--- ./ld/NEWS 2009-03-05 11:53:45.000000000 +0000
***************
*** 1,5 ****
--- 1,9 ----

2
binutils.spec
View File

@ -48,7 +48,7 @@ BuildRequires: texinfo >= 4.0, gettext, flex, bison, zlib-devel
# Required for: ld-bootstrap/bootstrap.exp bootstrap with --static
# It should not be required for: ld-elf/elf.exp static {preinit,init,fini} array
%if %{run_testsuite}
BuildRequires: dejagnu, zlib-static glibc-static
BuildRequires: dejagnu, zlib-static, glibc-static
%endif
Conflicts: gcc-c++ < 4.0.0
Requires(post): /sbin/install-info