1 /* Machine-dependent ELF dynamic relocation inline functions. i386 version.
2 Copyright (C) 1995-2015 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
22 #define ELF_MACHINE_NAME "i386"
24 #include <sys/param.h>
27 #include <dl-tlsdesc.h>
29 /* Return nonzero iff ELF header is compatible with the running host. */
30 static inline int __attribute__ ((unused
))
31 elf_machine_matches_host (const Elf32_Ehdr
*ehdr
)
33 return ehdr
->e_machine
== EM_386
;
37 /* Return the link-time address of _DYNAMIC. Conveniently, this is the
38 first element of the GOT, a special entry that is never relocated. */
39 static inline Elf32_Addr
__attribute__ ((unused
, const))
40 elf_machine_dynamic (void)
42 /* This produces a GOTOFF reloc that resolves to zero at link time, so in
43 fact just loads from the GOT register directly. By doing it without
44 an asm we can let the compiler choose any register. */
45 extern const Elf32_Addr _GLOBAL_OFFSET_TABLE_
[] attribute_hidden
;
46 return _GLOBAL_OFFSET_TABLE_
[0];
49 /* Return the run-time load address of the shared object. */
50 static inline Elf32_Addr
__attribute__ ((unused
))
51 elf_machine_load_address (void)
53 /* Compute the difference between the runtime address of _DYNAMIC as seen
54 by a GOTOFF reference, and the link-time address found in the special
55 unrelocated first GOT entry. */
56 extern Elf32_Dyn bygotoff
[] asm ("_DYNAMIC") attribute_hidden
;
57 return (Elf32_Addr
) &bygotoff
- elf_machine_dynamic ();
60 /* Set up the loaded object described by L so its unrelocated PLT
61 entries will jump to the on-demand fixup code in dl-runtime.c. */
63 static inline int __attribute__ ((unused
, always_inline
))
64 elf_machine_runtime_setup (struct link_map
*l
, int lazy
, int profile
)
67 extern void _dl_runtime_resolve (Elf32_Word
) attribute_hidden
;
68 extern void _dl_runtime_profile (Elf32_Word
) attribute_hidden
;
70 if (l
->l_info
[DT_JMPREL
] && lazy
)
72 /* The GOT entries for functions in the PLT have not yet been filled
73 in. Their initial contents will arrange when called to push an
74 offset into the .rel.plt section, push _GLOBAL_OFFSET_TABLE_[1],
75 and then jump to _GLOBAL_OFFSET_TABLE[2]. */
76 got
= (Elf32_Addr
*) D_PTR (l
, l_info
[DT_PLTGOT
]);
77 /* If a library is prelinked but we have to relocate anyway,
78 we have to be able to undo the prelinking of .got.plt.
79 The prelinker saved us here address of .plt + 0x16. */
82 l
->l_mach
.plt
= got
[1] + l
->l_addr
;
83 l
->l_mach
.gotplt
= (Elf32_Addr
) &got
[3];
85 got
[1] = (Elf32_Addr
) l
; /* Identify this shared object. */
87 /* The got[2] entry contains the address of a function which gets
88 called to get the address of a so far unresolved function and
89 jump to it. The profiling extension of the dynamic linker allows
90 to intercept the calls to collect information. In this case we
91 don't store the address in the GOT so that all future calls also
92 end in this function. */
93 if (__glibc_unlikely (profile
))
95 got
[2] = (Elf32_Addr
) &_dl_runtime_profile
;
97 if (GLRO(dl_profile
) != NULL
98 && _dl_name_match_p (GLRO(dl_profile
), l
))
99 /* This is the object we are looking for. Say that we really
100 want profiling and the timers are started. */
101 GL(dl_profile_map
) = l
;
104 /* This function will get called to fix up the GOT entry indicated by
105 the offset on the stack, and then jump to the resolved address. */
106 got
[2] = (Elf32_Addr
) &_dl_runtime_resolve
;
115 /* We add a declaration of this function here so that in dl-runtime.c
116 the ELF_MACHINE_RUNTIME_TRAMPOLINE macro really can pass the parameters
119 We cannot use this scheme for profiling because the _mcount call
120 destroys the passed register information. */
121 #define ARCH_FIXUP_ATTRIBUTE __attribute__ ((regparm (3), stdcall, unused))
123 extern ElfW(Addr
) _dl_fixup (struct link_map
*l
,
124 ElfW(Word
) reloc_offset
)
125 ARCH_FIXUP_ATTRIBUTE
;
126 extern ElfW(Addr
) _dl_profile_fixup (struct link_map
*l
,
127 ElfW(Word
) reloc_offset
,
128 ElfW(Addr
) retaddr
, void *regs
,
129 long int *framesizep
)
130 ARCH_FIXUP_ATTRIBUTE
;
135 /* Mask identifying addresses reserved for the user program,
136 where the dynamic linker should not map anything. */
137 #define ELF_MACHINE_USER_ADDRESS_MASK 0xf8000000UL
139 /* Initial entry point code for the dynamic linker.
140 The C function `_dl_start' is the real entry point;
141 its return value is the user program's entry point. */
143 #define RTLD_START asm ("\n\
146 0: movl (%esp), %ebx\n\
150 .globl _dl_start_user\n\
152 # Note that _dl_start gets the parameter in %eax.\n\
156 # Save the user entry point address in %edi.\n\
158 # Point %ebx at the GOT.\n\
160 addl $_GLOBAL_OFFSET_TABLE_, %ebx\n\
161 # See if we were run as a command with the executable file\n\
162 # name as an extra leading argument.\n\
163 movl _dl_skip_args@GOTOFF(%ebx), %eax\n\
164 # Pop the original argument count.\n\
166 # Adjust the stack pointer to skip _dl_skip_args words.\n\
167 leal (%esp,%eax,4), %esp\n\
168 # Subtract _dl_skip_args from argc.\n\
170 # Push argc back on the stack.\n\
172 # The special initializer gets called with the stack just\n\
173 # as the application's entry point will see it; it can\n\
174 # switch stacks if it moves these contents over.\n\
175 " RTLD_START_SPECIAL_INIT "\n\
176 # Load the parameters again.\n\
177 # (eax, edx, ecx, *--esp) = (_dl_loaded, argc, argv, envp)\n\
178 movl _rtld_local@GOTOFF(%ebx), %eax\n\
179 leal 8(%esp,%edx,4), %esi\n\
180 leal 4(%esp), %ecx\n\
182 # Make sure _dl_init is run with 16 byte aligned stack.\n\
188 # Clear %ebp, so that even constructors have terminated backchain.\n\
190 # Call the function to run the initializers.\n\
192 # Pass our finalizer function to the user in %edx, as per ELF ABI.\n\
193 leal _dl_fini@GOTOFF(%ebx), %edx\n\
194 # Restore %esp _start expects.\n\
196 # Jump to the user's entry point.\n\
201 #ifndef RTLD_START_SPECIAL_INIT
202 # define RTLD_START_SPECIAL_INIT /* nothing */
205 /* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry or
206 TLS variable, so undefined references should not be allowed to
208 ELF_RTYPE_CLASS_COPY iff TYPE should not be allowed to resolve to one
209 of the main executable's symbols, as for a COPY reloc.
210 ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA iff TYPE describes relocation may
211 against protected data whose address be external due to copy relocation.
213 # define elf_machine_type_class(type) \
214 ((((type) == R_386_JMP_SLOT || (type) == R_386_TLS_DTPMOD32 \
215 || (type) == R_386_TLS_DTPOFF32 || (type) == R_386_TLS_TPOFF32 \
216 || (type) == R_386_TLS_TPOFF || (type) == R_386_TLS_DESC) \
217 * ELF_RTYPE_CLASS_PLT) \
218 | (((type) == R_386_COPY) * ELF_RTYPE_CLASS_COPY) \
219 | (((type) == R_386_GLOB_DAT) * ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA))
221 /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */
222 #define ELF_MACHINE_JMP_SLOT R_386_JMP_SLOT
224 /* The i386 never uses Elf32_Rela relocations for the dynamic linker.
225 Prelinked libraries may use Elf32_Rela though. */
226 #define ELF_MACHINE_PLT_REL 1
228 /* We define an initialization functions. This is called very early in
230 #define DL_PLATFORM_INIT dl_platform_init ()
232 static inline void __attribute__ ((unused
))
233 dl_platform_init (void)
235 if (GLRO(dl_platform
) != NULL
&& *GLRO(dl_platform
) == '\0')
236 /* Avoid an empty string which would disturb us. */
237 GLRO(dl_platform
) = NULL
;
240 static inline Elf32_Addr
241 elf_machine_fixup_plt (struct link_map
*map
, lookup_t t
,
242 const Elf32_Rel
*reloc
,
243 Elf32_Addr
*reloc_addr
, Elf32_Addr value
)
245 return *reloc_addr
= value
;
248 /* Return the final value of a plt relocation. */
249 static inline Elf32_Addr
250 elf_machine_plt_value (struct link_map
*map
, const Elf32_Rel
*reloc
,
257 /* Names of the architecture-specific auditing callback functions. */
258 #define ARCH_LA_PLTENTER i86_gnu_pltenter
259 #define ARCH_LA_PLTEXIT i86_gnu_pltexit
261 #endif /* !dl_machine_h */
263 /* The i386 never uses Elf32_Rela relocations for the dynamic linker.
264 Prelinked libraries may use Elf32_Rela though. */
265 #define ELF_MACHINE_NO_RELA defined RTLD_BOOTSTRAP
266 #define ELF_MACHINE_NO_REL 0
270 /* Perform the relocation specified by RELOC and SYM (which is fully resolved).
271 MAP is the object containing the reloc. */
274 __attribute ((always_inline
))
275 elf_machine_rel (struct link_map
*map
, const Elf32_Rel
*reloc
,
276 const Elf32_Sym
*sym
, const struct r_found_version
*version
,
277 void *const reloc_addr_arg
, int skip_ifunc
)
279 Elf32_Addr
*const reloc_addr
= reloc_addr_arg
;
280 const unsigned int r_type
= ELF32_R_TYPE (reloc
->r_info
);
282 # if !defined RTLD_BOOTSTRAP || !defined HAVE_Z_COMBRELOC
283 if (__glibc_unlikely (r_type
== R_386_RELATIVE
))
285 # if !defined RTLD_BOOTSTRAP && !defined HAVE_Z_COMBRELOC
286 /* This is defined in rtld.c, but nowhere in the static libc.a;
287 make the reference weak so static programs can still link.
288 This declaration cannot be done when compiling rtld.c
289 (i.e. #ifdef RTLD_BOOTSTRAP) because rtld.c contains the
290 common defn for _dl_rtld_map, which is incompatible with a
291 weak decl in the same file. */
293 weak_extern (_dl_rtld_map
);
295 if (map
!= &GL(dl_rtld_map
)) /* Already done in rtld itself. */
297 *reloc_addr
+= map
->l_addr
;
299 # ifndef RTLD_BOOTSTRAP
300 else if (__glibc_unlikely (r_type
== R_386_NONE
))
304 # endif /* !RTLD_BOOTSTRAP and have no -z combreloc */
306 # ifndef RTLD_BOOTSTRAP
307 const Elf32_Sym
*const refsym
= sym
;
309 struct link_map
*sym_map
= RESOLVE_MAP (&sym
, version
, r_type
);
310 Elf32_Addr value
= sym_map
== NULL
? 0 : sym_map
->l_addr
+ sym
->st_value
;
313 && __builtin_expect (ELFW(ST_TYPE
) (sym
->st_info
) == STT_GNU_IFUNC
,
315 && __builtin_expect (sym
->st_shndx
!= SHN_UNDEF
, 1)
316 && __builtin_expect (!skip_ifunc
, 1))
317 value
= ((Elf32_Addr (*) (void)) value
) ();
321 # ifndef RTLD_BOOTSTRAP
323 /* Set to symbol size plus addend. */
324 *reloc_addr
+= sym
->st_size
;
332 case R_386_TLS_DTPMOD32
:
333 # ifdef RTLD_BOOTSTRAP
334 /* During startup the dynamic linker is always the module
336 XXX If this relocation is necessary move before RESOLVE
340 /* Get the information from the link map returned by the
343 *reloc_addr
= sym_map
->l_tls_modid
;
346 case R_386_TLS_DTPOFF32
:
347 # ifndef RTLD_BOOTSTRAP
348 /* During relocation all TLS symbols are defined and used.
349 Therefore the offset is already correct. */
351 *reloc_addr
= sym
->st_value
;
356 struct tlsdesc
volatile *td
=
357 (struct tlsdesc
volatile *)reloc_addr
;
359 # ifndef RTLD_BOOTSTRAP
361 td
->entry
= _dl_tlsdesc_undefweak
;
365 # ifndef RTLD_BOOTSTRAP
367 CHECK_STATIC_TLS (map
, sym_map
);
369 if (!TRY_STATIC_TLS (map
, sym_map
))
371 td
->arg
= _dl_make_tlsdesc_dynamic
372 (sym_map
, sym
->st_value
+ (ElfW(Word
))td
->arg
);
373 td
->entry
= _dl_tlsdesc_dynamic
;
379 td
->arg
= (void*)(sym
->st_value
- sym_map
->l_tls_offset
380 + (ElfW(Word
))td
->arg
);
381 td
->entry
= _dl_tlsdesc_return
;
386 case R_386_TLS_TPOFF32
:
387 /* The offset is positive, backward from the thread pointer. */
388 # ifdef RTLD_BOOTSTRAP
389 *reloc_addr
+= map
->l_tls_offset
- sym
->st_value
;
391 /* We know the offset of object the symbol is contained in.
392 It is a positive value which will be subtracted from the
393 thread pointer. To get the variable position in the TLS
394 block we subtract the offset from that of the TLS block. */
397 CHECK_STATIC_TLS (map
, sym_map
);
398 *reloc_addr
+= sym_map
->l_tls_offset
- sym
->st_value
;
402 case R_386_TLS_TPOFF
:
403 /* The offset is negative, forward from the thread pointer. */
404 # ifdef RTLD_BOOTSTRAP
405 *reloc_addr
+= sym
->st_value
- map
->l_tls_offset
;
407 /* We know the offset of object the symbol is contained in.
408 It is a negative value which will be added to the
412 CHECK_STATIC_TLS (map
, sym_map
);
413 *reloc_addr
+= sym
->st_value
- sym_map
->l_tls_offset
;
418 # ifndef RTLD_BOOTSTRAP
420 *reloc_addr
+= value
;
423 *reloc_addr
+= (value
- (Elf32_Addr
) reloc_addr
);
427 /* This can happen in trace mode if an object could not be
430 if (__builtin_expect (sym
->st_size
> refsym
->st_size
, 0)
431 || (__builtin_expect (sym
->st_size
< refsym
->st_size
, 0)
432 && GLRO(dl_verbose
)))
436 strtab
= (const char *) D_PTR (map
, l_info
[DT_STRTAB
]);
438 %s: Symbol `%s' has different size in shared object, consider re-linking\n",
439 RTLD_PROGNAME
, strtab
+ refsym
->st_name
);
441 memcpy (reloc_addr_arg
, (void *) value
,
442 MIN (sym
->st_size
, refsym
->st_size
));
444 case R_386_IRELATIVE
:
445 value
= map
->l_addr
+ *reloc_addr
;
446 value
= ((Elf32_Addr (*) (void)) value
) ();
450 _dl_reloc_bad_type (map
, r_type
, 0);
452 # endif /* !RTLD_BOOTSTRAP */
457 # ifndef RTLD_BOOTSTRAP
459 __attribute__ ((always_inline
))
460 elf_machine_rela (struct link_map
*map
, const Elf32_Rela
*reloc
,
461 const Elf32_Sym
*sym
, const struct r_found_version
*version
,
462 void *const reloc_addr_arg
, int skip_ifunc
)
464 Elf32_Addr
*const reloc_addr
= reloc_addr_arg
;
465 const unsigned int r_type
= ELF32_R_TYPE (reloc
->r_info
);
467 if (ELF32_R_TYPE (reloc
->r_info
) == R_386_RELATIVE
)
468 *reloc_addr
= map
->l_addr
+ reloc
->r_addend
;
469 else if (r_type
!= R_386_NONE
)
471 # ifndef RESOLVE_CONFLICT_FIND_MAP
472 const Elf32_Sym
*const refsym
= sym
;
474 struct link_map
*sym_map
= RESOLVE_MAP (&sym
, version
, r_type
);
475 Elf32_Addr value
= sym
== NULL
? 0 : sym_map
->l_addr
+ sym
->st_value
;
478 && __builtin_expect (sym
->st_shndx
!= SHN_UNDEF
, 1)
479 && __builtin_expect (ELFW(ST_TYPE
) (sym
->st_info
) == STT_GNU_IFUNC
, 0)
480 && __builtin_expect (!skip_ifunc
, 1))
481 value
= ((Elf32_Addr (*) (void)) value
) ();
483 switch (ELF32_R_TYPE (reloc
->r_info
))
486 /* Set to symbol size plus addend. */
487 value
= sym
->st_size
;
491 *reloc_addr
= value
+ reloc
->r_addend
;
493 # ifndef RESOLVE_CONFLICT_FIND_MAP
494 /* Not needed for dl-conflict.c. */
496 *reloc_addr
= (value
+ reloc
->r_addend
- (Elf32_Addr
) reloc_addr
);
499 case R_386_TLS_DTPMOD32
:
500 /* Get the information from the link map returned by the
503 *reloc_addr
= sym_map
->l_tls_modid
;
505 case R_386_TLS_DTPOFF32
:
506 /* During relocation all TLS symbols are defined and used.
507 Therefore the offset is already correct. */
508 *reloc_addr
= (sym
== NULL
? 0 : sym
->st_value
) + reloc
->r_addend
;
512 struct tlsdesc
volatile *td
=
513 (struct tlsdesc
volatile *)reloc_addr
;
515 # ifndef RTLD_BOOTSTRAP
518 td
->arg
= (void*)reloc
->r_addend
;
519 td
->entry
= _dl_tlsdesc_undefweak
;
524 # ifndef RTLD_BOOTSTRAP
526 CHECK_STATIC_TLS (map
, sym_map
);
528 if (!TRY_STATIC_TLS (map
, sym_map
))
530 td
->arg
= _dl_make_tlsdesc_dynamic
531 (sym_map
, sym
->st_value
+ reloc
->r_addend
);
532 td
->entry
= _dl_tlsdesc_dynamic
;
538 td
->arg
= (void*)(sym
->st_value
- sym_map
->l_tls_offset
540 td
->entry
= _dl_tlsdesc_return
;
545 case R_386_TLS_TPOFF32
:
546 /* The offset is positive, backward from the thread pointer. */
547 /* We know the offset of object the symbol is contained in.
548 It is a positive value which will be subtracted from the
549 thread pointer. To get the variable position in the TLS
550 block we subtract the offset from that of the TLS block. */
553 CHECK_STATIC_TLS (map
, sym_map
);
554 *reloc_addr
= sym_map
->l_tls_offset
- sym
->st_value
558 case R_386_TLS_TPOFF
:
559 /* The offset is negative, forward from the thread pointer. */
560 /* We know the offset of object the symbol is contained in.
561 It is a negative value which will be added to the
565 CHECK_STATIC_TLS (map
, sym_map
);
566 *reloc_addr
= sym
->st_value
- sym_map
->l_tls_offset
572 /* This can happen in trace mode if an object could not be
575 if (__builtin_expect (sym
->st_size
> refsym
->st_size
, 0)
576 || (__builtin_expect (sym
->st_size
< refsym
->st_size
, 0)
577 && GLRO(dl_verbose
)))
581 strtab
= (const char *) D_PTR (map
, l_info
[DT_STRTAB
]);
583 %s: Symbol `%s' has different size in shared object, consider re-linking\n",
584 RTLD_PROGNAME
, strtab
+ refsym
->st_name
);
586 memcpy (reloc_addr_arg
, (void *) value
,
587 MIN (sym
->st_size
, refsym
->st_size
));
589 # endif /* !RESOLVE_CONFLICT_FIND_MAP */
590 case R_386_IRELATIVE
:
591 value
= map
->l_addr
+ reloc
->r_addend
;
592 value
= ((Elf32_Addr (*) (void)) value
) ();
596 /* We add these checks in the version to relocate ld.so only
597 if we are still debugging. */
598 _dl_reloc_bad_type (map
, r_type
, 0);
603 # endif /* !RTLD_BOOTSTRAP */
606 __attribute ((always_inline
))
607 elf_machine_rel_relative (Elf32_Addr l_addr
, const Elf32_Rel
*reloc
,
608 void *const reloc_addr_arg
)
610 Elf32_Addr
*const reloc_addr
= reloc_addr_arg
;
611 assert (ELF32_R_TYPE (reloc
->r_info
) == R_386_RELATIVE
);
612 *reloc_addr
+= l_addr
;
615 # ifndef RTLD_BOOTSTRAP
617 __attribute__ ((always_inline
))
618 elf_machine_rela_relative (Elf32_Addr l_addr
, const Elf32_Rela
*reloc
,
619 void *const reloc_addr_arg
)
621 Elf32_Addr
*const reloc_addr
= reloc_addr_arg
;
622 *reloc_addr
= l_addr
+ reloc
->r_addend
;
624 # endif /* !RTLD_BOOTSTRAP */
627 __attribute__ ((always_inline
))
628 elf_machine_lazy_rel (struct link_map
*map
,
629 Elf32_Addr l_addr
, const Elf32_Rel
*reloc
,
632 Elf32_Addr
*const reloc_addr
= (void *) (l_addr
+ reloc
->r_offset
);
633 const unsigned int r_type
= ELF32_R_TYPE (reloc
->r_info
);
634 /* Check for unexpected PLT reloc type. */
635 if (__glibc_likely (r_type
== R_386_JMP_SLOT
))
637 if (__builtin_expect (map
->l_mach
.plt
, 0) == 0)
638 *reloc_addr
+= l_addr
;
640 *reloc_addr
= (map
->l_mach
.plt
641 + (((Elf32_Addr
) reloc_addr
) - map
->l_mach
.gotplt
) * 4);
643 else if (__glibc_likely (r_type
== R_386_TLS_DESC
))
645 struct tlsdesc
volatile * __attribute__((__unused__
)) td
=
646 (struct tlsdesc
volatile *)reloc_addr
;
648 /* Handle relocations that reference the local *ABS* in a simple
649 way, so as to preserve a potential addend. */
650 if (ELF32_R_SYM (reloc
->r_info
) == 0)
651 td
->entry
= _dl_tlsdesc_resolve_abs_plus_addend
;
652 /* Given a known-zero addend, we can store a pointer to the
653 reloc in the arg position. */
654 else if (td
->arg
== 0)
656 td
->arg
= (void*)reloc
;
657 td
->entry
= _dl_tlsdesc_resolve_rel
;
661 /* We could handle non-*ABS* relocations with non-zero addends
662 by allocating dynamically an arg to hold a pointer to the
663 reloc, but that sounds pointless. */
664 const Elf32_Rel
*const r
= reloc
;
665 /* The code below was borrowed from elf_dynamic_do_rel(). */
666 const ElfW(Sym
) *const symtab
=
667 (const void *) D_PTR (map
, l_info
[DT_SYMTAB
]);
669 # ifdef RTLD_BOOTSTRAP
670 /* The dynamic linker always uses versioning. */
671 assert (map
->l_info
[VERSYMIDX (DT_VERSYM
)] != NULL
);
673 if (map
->l_info
[VERSYMIDX (DT_VERSYM
)])
676 const ElfW(Half
) *const version
=
677 (const void *) D_PTR (map
, l_info
[VERSYMIDX (DT_VERSYM
)]);
678 ElfW(Half
) ndx
= version
[ELFW(R_SYM
) (r
->r_info
)] & 0x7fff;
679 elf_machine_rel (map
, r
, &symtab
[ELFW(R_SYM
) (r
->r_info
)],
680 &map
->l_versions
[ndx
],
681 (void *) (l_addr
+ r
->r_offset
), skip_ifunc
);
683 # ifndef RTLD_BOOTSTRAP
685 elf_machine_rel (map
, r
, &symtab
[ELFW(R_SYM
) (r
->r_info
)], NULL
,
686 (void *) (l_addr
+ r
->r_offset
), skip_ifunc
);
690 else if (__glibc_unlikely (r_type
== R_386_IRELATIVE
))
692 Elf32_Addr value
= map
->l_addr
+ *reloc_addr
;
693 if (__glibc_likely (!skip_ifunc
))
694 value
= ((Elf32_Addr (*) (void)) value
) ();
698 _dl_reloc_bad_type (map
, r_type
, 1);
701 # ifndef RTLD_BOOTSTRAP
704 __attribute__ ((always_inline
))
705 elf_machine_lazy_rela (struct link_map
*map
,
706 Elf32_Addr l_addr
, const Elf32_Rela
*reloc
,
709 Elf32_Addr
*const reloc_addr
= (void *) (l_addr
+ reloc
->r_offset
);
710 const unsigned int r_type
= ELF32_R_TYPE (reloc
->r_info
);
711 if (__glibc_likely (r_type
== R_386_JMP_SLOT
))
713 else if (__glibc_likely (r_type
== R_386_TLS_DESC
))
715 struct tlsdesc
volatile * __attribute__((__unused__
)) td
=
716 (struct tlsdesc
volatile *)reloc_addr
;
718 td
->arg
= (void*)reloc
;
719 td
->entry
= _dl_tlsdesc_resolve_rela
;
721 else if (__glibc_unlikely (r_type
== R_386_IRELATIVE
))
723 Elf32_Addr value
= map
->l_addr
+ reloc
->r_addend
;
724 if (__glibc_likely (!skip_ifunc
))
725 value
= ((Elf32_Addr (*) (void)) value
) ();
729 _dl_reloc_bad_type (map
, r_type
, 1);
732 # endif /* !RTLD_BOOTSTRAP */
734 #endif /* RESOLVE_MAP */