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elf: Unify symbol address run-time calculation [BZ #19818]

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Wrap symbol address run-time calculation into a macro and use it
throughout, replacing inline calculations.

There are a couple of variants, most of them different in a functionally
insignificant way.  Most calculations are right following RESOLVE_MAP,
at which point either the map or the symbol returned can be checked for
validity as the macro sets either both or neither.  In some places both
the symbol and the map has to be checked however.

My initial implementation therefore always checked both, however that
resulted in code larger by as much as 0.3%, as many places know from
elsewhere that no check is needed.  I have decided the size growth was
unacceptable.

Having looked closer I realized that it's the map that is the culprit.
Therefore I have modified LOOKUP_VALUE_ADDRESS to accept an additional
boolean argument telling it to access the map without checking it for
validity.  This in turn has brought quite nice results, with new code
actually being smaller for i686, and MIPS o32, n32 and little-endian n64
targets, unchanged in size for x86-64 and, unusually, marginally larger
for big-endian MIPS n64, as follows:

i686:
   text    data     bss     dec     hex filename
 152255    4052     192  156499   26353 ld-2.27.9000-base.so
 152159    4052     192  156403   262f3 ld-2.27.9000-elf-symbol-value.so
MIPS/o32/el:
   text    data     bss     dec     hex filename
 142906    4396     260  147562   2406a ld-2.27.9000-base.so
 142890    4396     260  147546   2405a ld-2.27.9000-elf-symbol-value.so
MIPS/n32/el:
   text    data     bss     dec     hex filename
 142267    4404     260  146931   23df3 ld-2.27.9000-base.so
 142171    4404     260  146835   23d93 ld-2.27.9000-elf-symbol-value.so
MIPS/n64/el:
   text    data     bss     dec     hex filename
 149835    7376     408  157619   267b3 ld-2.27.9000-base.so
 149787    7376     408  157571   26783 ld-2.27.9000-elf-symbol-value.so
MIPS/o32/eb:
   text    data     bss     dec     hex filename
 142870    4396     260  147526   24046 ld-2.27.9000-base.so
 142854    4396     260  147510   24036 ld-2.27.9000-elf-symbol-value.so
MIPS/n32/eb:
   text    data     bss     dec     hex filename
 142019    4404     260  146683   23cfb ld-2.27.9000-base.so
 141923    4404     260  146587   23c9b ld-2.27.9000-elf-symbol-value.so
MIPS/n64/eb:
   text    data     bss     dec     hex filename
 149763    7376     408  157547   2676b ld-2.27.9000-base.so
 149779    7376     408  157563   2677b ld-2.27.9000-elf-symbol-value.so
x86-64:
   text    data     bss     dec     hex filename
 148462    6452     400  155314   25eb2 ld-2.27.9000-base.so
 148462    6452     400  155314   25eb2 ld-2.27.9000-elf-symbol-value.so

	[BZ #19818]
	* sysdeps/generic/ldsodefs.h (LOOKUP_VALUE_ADDRESS): Add `set'
	parameter.
	(SYMBOL_ADDRESS): New macro.
	[!ELF_FUNCTION_PTR_IS_SPECIAL] (DL_SYMBOL_ADDRESS): Use
	SYMBOL_ADDRESS for symbol address calculation.
	* elf/dl-runtime.c (_dl_fixup): Likewise.
	(_dl_profile_fixup): Likewise.
	* elf/dl-symaddr.c (_dl_symbol_address): Likewise.
	* elf/rtld.c (dl_main): Likewise.
	* sysdeps/aarch64/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/alpha/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/arm/dl-machine.h (elf_machine_rel): Likewise.
	(elf_machine_rela): Likewise.
	* sysdeps/hppa/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/hppa/dl-symaddr.c (_dl_symbol_address): Likewise.
	* sysdeps/i386/dl-machine.h (elf_machine_rel): Likewise.
	(elf_machine_rela): Likewise.
	* sysdeps/ia64/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/m68k/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/microblaze/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/mips/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC):
	Likewise.
	(elf_machine_reloc): Likewise.
	(elf_machine_got_rel): Likewise.
	* sysdeps/mips/dl-trampoline.c (__dl_runtime_resolve): Likewise.
	* sysdeps/nios2/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_rela):
	Likewise.
	* sysdeps/powerpc/powerpc64/dl-machine.h (elf_machine_rela):
	Likewise.
	* sysdeps/riscv/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/s390/s390-32/dl-machine.h (elf_machine_rela):
	Likewise.
	* sysdeps/s390/s390-64/dl-machine.h (elf_machine_rela):
	Likewise.
	* sysdeps/sh/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela):
	Likewise.
	* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela):
	Likewise.
	* sysdeps/tile/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/x86_64/dl-machine.h (elf_machine_rela): Likewise.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
This commit is contained in:
Maciej W. Rozycki 2018-04-04 23:09:37 +01:00
parent 9185f86d8f
commit 10a446ddcc
27 changed files with 97 additions and 50 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
ChangeLog
View File

@ -1,3 +1,49 @@
2018-04-04 Maciej W. Rozycki <macro@mips.com>
[BZ #19818]
* sysdeps/generic/ldsodefs.h (LOOKUP_VALUE_ADDRESS): Add `set'
parameter.
(SYMBOL_ADDRESS): New macro.
[!ELF_FUNCTION_PTR_IS_SPECIAL] (DL_SYMBOL_ADDRESS): Use
SYMBOL_ADDRESS for symbol address calculation.
* elf/dl-runtime.c (_dl_fixup): Likewise.
(_dl_profile_fixup): Likewise.
* elf/dl-symaddr.c (_dl_symbol_address): Likewise.
* elf/rtld.c (dl_main): Likewise.
* sysdeps/aarch64/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/alpha/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/arm/dl-machine.h (elf_machine_rel): Likewise.
(elf_machine_rela): Likewise.
* sysdeps/hppa/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/hppa/dl-symaddr.c (_dl_symbol_address): Likewise.
* sysdeps/i386/dl-machine.h (elf_machine_rel): Likewise.
(elf_machine_rela): Likewise.
* sysdeps/ia64/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/m68k/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/microblaze/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/mips/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC):
Likewise.
(elf_machine_reloc): Likewise.
(elf_machine_got_rel): Likewise.
* sysdeps/mips/dl-trampoline.c (__dl_runtime_resolve): Likewise.
* sysdeps/nios2/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_rela):
Likewise.
* sysdeps/powerpc/powerpc64/dl-machine.h (elf_machine_rela):
Likewise.
* sysdeps/riscv/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/s390/s390-32/dl-machine.h (elf_machine_rela):
Likewise.
* sysdeps/s390/s390-64/dl-machine.h (elf_machine_rela):
Likewise.
* sysdeps/sh/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela):
Likewise.
* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela):
Likewise.
* sysdeps/tile/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/x86_64/dl-machine.h (elf_machine_rela): Likewise.
2018-04-04 Zack Weinberg <zackw@panix.com>
* sysdeps/generic/internal-signals.h: Include signal.h,

11
elf/dl-runtime.c
View File

@ -124,14 +124,13 @@ _dl_fixup (
of the object that defines sym. Now add in the symbol
offset. */
value = DL_FIXUP_MAKE_VALUE (result,
sym ? (LOOKUP_VALUE_ADDRESS (result)
+ sym->st_value) : 0);
SYMBOL_ADDRESS (result, sym, false));
}
else
{
/* We already found the symbol. The module (and therefore its load
address) is also known. */
value = DL_FIXUP_MAKE_VALUE (l, l->l_addr + sym->st_value);
value = DL_FIXUP_MAKE_VALUE (l, SYMBOL_ADDRESS (l, sym, true));
result = l;
}
@ -241,9 +240,7 @@ _dl_profile_fixup (
of the object that defines sym. Now add in the symbol
offset. */
value = DL_FIXUP_MAKE_VALUE (result,
defsym != NULL
? LOOKUP_VALUE_ADDRESS (result)
+ defsym->st_value : 0);
SYMBOL_ADDRESS (result, defsym, false));
if (defsym != NULL
&& __builtin_expect (ELFW(ST_TYPE) (defsym->st_info)
@ -254,7 +251,7 @@ _dl_profile_fixup (
{
/* We already found the symbol. The module (and therefore its load
address) is also known. */
value = DL_FIXUP_MAKE_VALUE (l, l->l_addr + refsym->st_value);
value = DL_FIXUP_MAKE_VALUE (l, SYMBOL_ADDRESS (l, refsym, true));
if (__builtin_expect (ELFW(ST_TYPE) (refsym->st_info)
== STT_GNU_IFUNC, 0))

2
elf/dl-symaddr.c
View File

@ -22,7 +22,7 @@
void *
_dl_symbol_address (struct link_map *map, const ElfW(Sym) *ref)
{
ElfW(Addr) value = (map ? map->l_addr : 0) + ref->st_value;
ElfW(Addr) value = SYMBOL_ADDRESS (map, ref, false);
/* Return the pointer to function descriptor. */
if (ELFW(ST_TYPE) (ref->st_info) == STT_FUNC)

2
elf/rtld.c
View File

@ -1916,7 +1916,7 @@ ERROR: ld.so: object '%s' cannot be loaded as audit interface: %s; ignored.\n",
NULL, ELF_RTYPE_CLASS_PLT,
DL_LOOKUP_ADD_DEPENDENCY, NULL);
loadbase = LOOKUP_VALUE_ADDRESS (result);
loadbase = LOOKUP_VALUE_ADDRESS (result, false);
_dl_printf ("%s found at 0x%0*Zd in object at 0x%0*Zd\n",
_dl_argv[i],

2
sysdeps/aarch64/dl-machine.h
View File

@ -254,7 +254,7 @@ elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
{
const ElfW(Sym) *const refsym = sym;
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
ElfW(Addr) value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
ElfW(Addr) value = SYMBOL_ADDRESS (sym_map, sym, true);
if (sym != NULL
&& __glibc_unlikely (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC)

2
sysdeps/alpha/dl-machine.h
View File

@ -419,7 +419,7 @@ elf_machine_rela (struct link_map *map,
if (sym_map)
{
sym_raw_value += sym->st_value;
sym_value = sym_raw_value + sym_map->l_addr;
sym_value += SYMBOL_ADDRESS (sym_map, sym, true);
}
if (r_type == R_ALPHA_GLOB_DAT)

6
sysdeps/arm/dl-machine.h
View File

@ -392,7 +392,7 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc,
{
const Elf32_Sym *const refsym = sym;
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
Elf32_Addr value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
Elf32_Addr value = SYMBOL_ADDRESS (sym_map, sym, true);
if (sym != NULL
&& __builtin_expect (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC, 0)
@ -452,7 +452,7 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc,
binding found in the user program or a loaded library
rather than the dynamic linker's built-in definitions
used while loading those libraries. */
value -= map->l_addr + refsym->st_value;
value -= SYMBOL_ADDRESS (map, refsym, true);
# endif
/* Support relocations on mis-aligned offsets. */
((struct unaligned *) reloc_addr)->x += value;
@ -553,7 +553,7 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
const Elf32_Sym *const refsym = sym;
# endif
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
Elf32_Addr value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
Elf32_Addr value = SYMBOL_ADDRESS (sym_map, sym, true);
if (sym != NULL
&& __builtin_expect (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC, 0)

10
sysdeps/generic/ldsodefs.h
View File

@ -66,14 +66,20 @@ __BEGIN_DECLS
/* Result of the lookup functions and how to retrieve the base address. */
typedef struct link_map *lookup_t;
#define LOOKUP_VALUE(map) map
#define LOOKUP_VALUE_ADDRESS(map) ((map) ? (map)->l_addr : 0)
#define LOOKUP_VALUE_ADDRESS(map, set) ((set) || (map) ? (map)->l_addr : 0)
/* Calculate the address of symbol REF using the base address from map MAP,
if non-NULL. Don't check for NULL map if MAP_SET is TRUE. */
#define SYMBOL_ADDRESS(map, ref, map_set) \
((ref) == NULL ? 0 \
: LOOKUP_VALUE_ADDRESS (map, map_set) + (ref)->st_value)
/* On some architectures a pointer to a function is not just a pointer
to the actual code of the function but rather an architecture
specific descriptor. */
#ifndef ELF_FUNCTION_PTR_IS_SPECIAL
# define DL_SYMBOL_ADDRESS(map, ref) \
(void *) (LOOKUP_VALUE_ADDRESS (map) + ref->st_value)
(void *) SYMBOL_ADDRESS (map, ref, false)
# define DL_LOOKUP_ADDRESS(addr) ((ElfW(Addr)) (addr))
# define DL_CALL_DT_INIT(map, start, argc, argv, env) \
((init_t) (start)) (argc, argv, env)

10
sysdeps/hppa/dl-machine.h
View File

@ -562,7 +562,7 @@ elf_machine_rela (struct link_map *map,
if (sym_map)
{
value = sym ? sym_map->l_addr + sym->st_value : 0;
value = SYMBOL_ADDRESS (sym_map, sym, true);
value += reloc->r_addend;
}
else
@ -586,8 +586,8 @@ elf_machine_rela (struct link_map *map,
case R_PARISC_DIR21L:
{
unsigned int insn = *(unsigned int *)reloc_addr;
value = sym_map->l_addr + sym->st_value
+ ((reloc->r_addend + 0x1000) & -0x2000);
value = (SYMBOL_ADDRESS (sym_map, sym, true)
+ ((reloc->r_addend + 0x1000) & -0x2000));
value = value >> 11;
insn = (insn &~ 0x1fffff) | reassemble_21 (value);
*(unsigned int *)reloc_addr = insn;
@ -597,8 +597,8 @@ elf_machine_rela (struct link_map *map,
case R_PARISC_DIR14R:
{
unsigned int insn = *(unsigned int *)reloc_addr;
value = ((sym_map->l_addr + sym->st_value) & 0x7ff)
+ (((reloc->r_addend & 0x1fff) ^ 0x1000) - 0x1000);
value = ((SYMBOL_ADDRESS (sym_map, sym, true) & 0x7ff)
+ (((reloc->r_addend & 0x1fff) ^ 0x1000) - 0x1000));
insn = (insn &~ 0x3fff) | reassemble_14 (value);
*(unsigned int *)reloc_addr = insn;
}

2
sysdeps/hppa/dl-symaddr.c
View File

@ -23,7 +23,7 @@ void *
_dl_symbol_address (struct link_map *map, const ElfW(Sym) *ref)
{
/* Find the "ip" from the "map" and symbol "ref" */
Elf32_Addr value = (map ? map->l_addr : 0) + ref->st_value;
Elf32_Addr value = SYMBOL_ADDRESS (map, ref, false);
/* On hppa, we have to return the pointer to function descriptor.
This involves an "| 2" to inform $$dyncall that this is a plabel32 */

4
sysdeps/i386/dl-machine.h
View File

@ -320,7 +320,7 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc,
const Elf32_Sym *const refsym = sym;
# endif
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
Elf32_Addr value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
Elf32_Addr value = SYMBOL_ADDRESS (sym_map, sym, true);
if (sym != NULL
&& __glibc_unlikely (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC)
@ -500,7 +500,7 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
const Elf32_Sym *const refsym = sym;
# endif
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
Elf32_Addr value = sym == NULL ? 0 : sym_map->l_addr + sym->st_value;
Elf32_Addr value = SYMBOL_ADDRESS (sym_map, sym, true);
if (sym != NULL
&& __glibc_likely (sym->st_shndx != SHN_UNDEF)

2
sysdeps/ia64/dl-machine.h
View File

@ -419,7 +419,7 @@ elf_machine_rela (struct link_map *map,
/* RESOLVE_MAP() will return NULL if it fail to locate the symbol. */
if ((sym_map = RESOLVE_MAP (&sym, version, r_type)))
{
value = sym_map->l_addr + sym->st_value + reloc->r_addend;
value = SYMBOL_ADDRESS (sym_map, sym, true) + reloc->r_addend;
if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_DIR64LSB))
;/* No adjustment. */

2
sysdeps/m68k/dl-machine.h
View File

@ -229,7 +229,7 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
{
const Elf32_Sym *const refsym = sym;
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
Elf32_Addr value = sym == NULL ? 0 : sym_map->l_addr + sym->st_value;
Elf32_Addr value = SYMBOL_ADDRESS (sym_map, sym, true);
switch (r_type)
{

2
sysdeps/microblaze/dl-machine.h
View File

@ -223,7 +223,7 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
{
const Elf32_Sym *const refsym = sym;
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
Elf32_Addr value = sym == NULL ? 0 : sym_map->l_addr + sym->st_value;
Elf32_Addr value = SYMBOL_ADDRESS (sym_map, sym, true);
value += reloc->r_addend;
if (r_type == R_MICROBLAZE_GLOB_DAT ||

14
sysdeps/mips/dl-machine.h
View File

@ -220,7 +220,7 @@ do { \
while (i--) \
{ \
if (sym->st_shndx == SHN_UNDEF || sym->st_shndx == SHN_COMMON) \
*got = map->l_addr + sym->st_value; \
*got = SYMBOL_ADDRESS (map, sym, true); \
else if (ELFW(ST_TYPE) (sym->st_info) == STT_FUNC \
&& *got != sym->st_value) \
*got += map->l_addr; \
@ -230,7 +230,7 @@ do { \
*got += map->l_addr; \
} \
else \
*got = map->l_addr + sym->st_value; \
*got = SYMBOL_ADDRESS (map, sym, true); \
\
got++; \
sym++; \
@ -598,7 +598,7 @@ elf_machine_reloc (struct link_map *map, ElfW(Addr) r_info,
#ifndef RTLD_BOOTSTRAP
if (map != &GL(dl_rtld_map))
#endif
reloc_value += sym->st_value + map->l_addr;
reloc_value += SYMBOL_ADDRESS (map, sym, true);
}
else
{
@ -663,7 +663,7 @@ elf_machine_reloc (struct link_map *map, ElfW(Addr) r_info,
"found jump slot relocation with non-zero addend");
sym_map = RESOLVE_MAP (&sym, version, r_type);
value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
value = SYMBOL_ADDRESS (sym_map, sym, true);
*addr_field = value;
break;
@ -677,7 +677,7 @@ elf_machine_reloc (struct link_map *map, ElfW(Addr) r_info,
/* Calculate the address of the symbol. */
sym_map = RESOLVE_MAP (&sym, version, r_type);
value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
value = SYMBOL_ADDRESS (sym_map, sym, true);
if (__builtin_expect (sym == NULL, 0))
/* This can happen in trace mode if an object could not be
@ -798,7 +798,7 @@ elf_machine_got_rel (struct link_map *map, int lazy)
= vernum ? &map->l_versions[vernum[sym_index] & 0x7fff] : NULL; \
struct link_map *sym_map; \
sym_map = RESOLVE_MAP (&ref, version, reloc); \
ref ? sym_map->l_addr + ref->st_value : 0; \
SYMBOL_ADDRESS (sym_map, ref, true); \
})
if (map->l_info[VERSYMIDX (DT_VERSYM)] != NULL)
@ -842,7 +842,7 @@ elf_machine_got_rel (struct link_map *map, int lazy)
&& !(sym->st_other & STO_MIPS_PLT))
{
if (lazy)
*got = sym->st_value + map->l_addr;
*got = SYMBOL_ADDRESS (map, sym, true);
else
/* This is a lazy-binding stub, so we don't need the
canonical address. */

4
sysdeps/mips/dl-trampoline.c
View File

@ -192,12 +192,12 @@ __dl_runtime_resolve (ElfW(Word) sym_index,
/* Currently value contains the base load address of the object
that defines sym. Now add in the symbol offset. */
value = (sym ? sym_map->l_addr + sym->st_value : 0);
value = SYMBOL_ADDRESS (sym_map, sym, true);
}
else
/* We already found the symbol. The module (and therefore its load
address) is also known. */
value = l->l_addr + sym->st_value;
value = SYMBOL_ADDRESS (l, sym, true);
/* Apply the relocation with that value. */
*(got + local_gotno + sym_index - gotsym) = value;

2
sysdeps/nios2/dl-machine.h
View File

@ -250,7 +250,7 @@ elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
{
const Elf32_Sym *const refsym = sym;
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
Elf32_Addr value = sym == NULL ? 0 : sym_map->l_addr + sym->st_value;
Elf32_Addr value = SYMBOL_ADDRESS (sym_map, sym, true);
switch (r_type)
{

2
sysdeps/powerpc/powerpc32/dl-machine.h
View File

@ -317,7 +317,7 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
else
{
sym_map = RESOLVE_MAP (&sym, version, r_type);
value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
value = SYMBOL_ADDRESS (sym_map, sym, true);
}
value += reloc->r_addend;
#else

3
sysdeps/powerpc/powerpc64/dl-machine.h
View File

@ -708,8 +708,7 @@ elf_machine_rela (struct link_map *map,
/* We need SYM_MAP even in the absence of TLS, for elf_machine_fixup_plt
and STT_GNU_IFUNC. */
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
Elf64_Addr value = ((sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value)
+ reloc->r_addend);
Elf64_Addr value = SYMBOL_ADDRESS (sym_map, sym, true) + reloc->r_addend;
if (sym != NULL
&& __builtin_expect (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC, 0)

2
sysdeps/riscv/dl-machine.h
View File

@ -172,7 +172,7 @@ elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
ElfW(Addr) value = 0;
if (sym_map != NULL)
value = sym_map->l_addr + sym->st_value + reloc->r_addend;
value = SYMBOL_ADDRESS (sym_map, sym, true) + reloc->r_addend;
switch (r_type)
{

2
sysdeps/s390/s390-32/dl-machine.h
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@ -358,7 +358,7 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
const Elf32_Sym *const refsym = sym;
#endif
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
Elf32_Addr value = sym == NULL ? 0 : sym_map->l_addr + sym->st_value;
Elf32_Addr value = SYMBOL_ADDRESS (sym_map, sym, true);
if (sym != NULL
&& __builtin_expect (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC, 0)

2
sysdeps/s390/s390-64/dl-machine.h
View File

@ -305,7 +305,7 @@ elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc,
const Elf64_Sym *const refsym = sym;
#endif
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
Elf64_Addr value = sym == NULL ? 0 : sym_map->l_addr + sym->st_value;
Elf64_Addr value = SYMBOL_ADDRESS (sym_map, sym, true);
if (sym != NULL
&& __builtin_expect (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC,

4
sysdeps/sh/dl-machine.h
View File

@ -320,7 +320,7 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
const Elf32_Sym *const refsym = sym;
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
value = SYMBOL_ADDRESS (sym_map, sym, true);
value += reloc->r_addend;
switch (r_type)
@ -406,7 +406,7 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
binding found in the user program or a loaded library
rather than the dynamic linker's built-in definitions
used while loading those libraries. */
value -= map->l_addr + refsym->st_value + reloc->r_addend;
value -= SYMBOL_ADDRESS (map, refsym, true) + reloc->r_addend;
#endif
COPY_UNALIGNED_WORD (&value, reloc_addr_arg,
(int) reloc_addr_arg & 3);

2
sysdeps/sparc/sparc32/dl-machine.h
View File

@ -382,7 +382,7 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
else
{
sym_map = RESOLVE_MAP (&sym, version, r_type);
value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
value = SYMBOL_ADDRESS (sym_map, sym, true);
}
#else
value = 0;

2
sysdeps/sparc/sparc64/dl-machine.h
View File

@ -409,7 +409,7 @@ elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc,
else
{
sym_map = RESOLVE_MAP (&sym, version, r_type);
value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
value = SYMBOL_ADDRESS (sym_map, sym, true);
}
#else
value = 0;

2
sysdeps/tile/dl-machine.h
View File

@ -430,7 +430,7 @@ elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
else if (ELFW_ST_TYPE (sym->st_info) == STT_SECTION)
value = map->l_addr; /* like a RELATIVE reloc */
else
value = sym_map->l_addr + sym->st_value;
value = SYMBOL_ADDRESS (sym_map, sym, true);
if (sym != NULL
&& __builtin_expect (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC, 0)

3
sysdeps/x86_64/dl-machine.h
View File

@ -306,8 +306,7 @@ elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
const ElfW(Sym) *const refsym = sym;
# endif
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
ElfW(Addr) value = (sym == NULL ? 0
: (ElfW(Addr)) sym_map->l_addr + sym->st_value);
ElfW(Addr) value = SYMBOL_ADDRESS (sym_map, sym, true);
if (sym != NULL
&& __glibc_unlikely (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC)