600 lines
18 KiB
C
600 lines
18 KiB
C
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/* Machine-dependent ELF dynamic relocation inline functions. ARM version.
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Copyright (C) 1995-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef dl_machine_h
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#define dl_machine_h
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#define ELF_MACHINE_NAME "ARM"
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#include <assert.h>
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#include <sys/param.h>
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#include <tls.h>
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#include <dl-tlsdesc.h>
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#include <dl-irel.h>
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#include <dl-static-tls.h>
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#include <dl-machine-rel.h>
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#ifndef CLEAR_CACHE
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# error CLEAR_CACHE definition required to handle TEXTREL
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#endif
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/* Return nonzero iff ELF header is compatible with the running host. */
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static inline int __attribute__ ((unused))
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elf_machine_matches_host (const Elf32_Ehdr *ehdr)
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{
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return ehdr->e_machine == EM_ARM;
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}
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/* Return the run-time load address of the shared object. */
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static inline ElfW(Addr) __attribute__ ((unused))
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elf_machine_load_address (void)
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{
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extern const ElfW(Ehdr) __ehdr_start attribute_hidden;
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return (ElfW(Addr)) &__ehdr_start;
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}
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/* Return the link-time address of _DYNAMIC. */
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static inline ElfW(Addr) __attribute__ ((unused))
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elf_machine_dynamic (void)
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{
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extern ElfW(Dyn) _DYNAMIC[] attribute_hidden;
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return (ElfW(Addr)) _DYNAMIC - elf_machine_load_address ();
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}
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/* Set up the loaded object described by L so its unrelocated PLT
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entries will jump to the on-demand fixup code in dl-runtime.c. */
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static inline int __attribute__ ((unused))
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elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[],
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int lazy, int profile)
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{
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Elf32_Addr *got;
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extern void _dl_runtime_resolve (Elf32_Word);
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extern void _dl_runtime_profile (Elf32_Word);
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if (l->l_info[DT_JMPREL] && lazy)
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{
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/* patb: this is different than i386 */
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/* The GOT entries for functions in the PLT have not yet been filled
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in. Their initial contents will arrange when called to push an
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index into the .got section, load ip with &_GLOBAL_OFFSET_TABLE_[3],
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and then jump to _GLOBAL_OFFSET_TABLE[2]. */
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got = (Elf32_Addr *) D_PTR (l, l_info[DT_PLTGOT]);
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/* If a library is prelinked but we have to relocate anyway,
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we have to be able to undo the prelinking of .got.plt.
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The prelinker saved us here address of .plt. */
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if (got[1])
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l->l_mach.plt = got[1] + l->l_addr;
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got[1] = (Elf32_Addr) l; /* Identify this shared object. */
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/* The got[2] entry contains the address of a function which gets
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called to get the address of a so far unresolved function and
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jump to it. The profiling extension of the dynamic linker allows
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to intercept the calls to collect information. In this case we
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don't store the address in the GOT so that all future calls also
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end in this function. */
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if (profile)
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{
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got[2] = (Elf32_Addr) &_dl_runtime_profile;
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if (GLRO(dl_profile) != NULL
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&& _dl_name_match_p (GLRO(dl_profile), l))
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/* Say that we really want profiling and the timers are
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started. */
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GL(dl_profile_map) = l;
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}
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else
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/* This function will get called to fix up the GOT entry indicated by
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the offset on the stack, and then jump to the resolved address. */
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got[2] = (Elf32_Addr) &_dl_runtime_resolve;
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}
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return lazy;
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}
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#if defined(ARCH_HAS_BX)
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#define BX(x) "bx\t" #x
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#else
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#define BX(x) "mov\tpc, " #x
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#endif
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/* Mask identifying addresses reserved for the user program,
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where the dynamic linker should not map anything. */
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#define ELF_MACHINE_USER_ADDRESS_MASK 0xf8000000UL
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/* Initial entry point code for the dynamic linker.
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The C function `_dl_start' is the real entry point;
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its return value is the user program's entry point. */
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#define RTLD_START asm ("\
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.text\n\
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.globl _start\n\
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.type _start, %function\n\
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.globl _dl_start_user\n\
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.type _dl_start_user, %function\n\
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_start:\n\
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@ we are PIC code, so get global offset table\n\
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ldr sl, .L_GET_GOT\n\
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@ at start time, all the args are on the stack\n\
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mov r0, sp\n\
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bl _dl_start\n\
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@ returns user entry point in r0\n\
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_dl_start_user:\n\
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adr r6, .L_GET_GOT\n\
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add sl, sl, r6\n\
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ldr r4, [sl, r4]\n\
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@ save the entry point in another register\n\
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mov r6, r0\n\
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@ get the original arg count\n\
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ldr r1, [sp]\n\
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@ get the argv address\n\
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add r2, sp, #4\n\
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@ compute envp\n\
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add r3, r2, r1, lsl #2\n\
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add r3, r3, #4\n\
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@ now we call _dl_init\n\
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ldr r0, .L_LOADED\n\
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ldr r0, [sl, r0]\n\
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@ call _dl_init\n\
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bl _dl_init(PLT)\n\
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@ load the finalizer function\n\
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ldr r0, .L_FINI_PROC\n\
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add r0, sl, r0\n\
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@ jump to the user_s entry point\n\
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" BX(r6) "\n\
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\n\
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.L_GET_GOT:\n\
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.word _GLOBAL_OFFSET_TABLE_ - .L_GET_GOT\n\
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.L_FINI_PROC:\n\
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.word _dl_fini(GOTOFF)\n\
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.L_ARGV:\n\
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.word __GI__dl_argv(GOTOFF)\n\
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.L_LOADED:\n\
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.word _rtld_local(GOTOFF)\n\
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.previous\n\
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");
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/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry or
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TLS variable, so undefined references should not be allowed to
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define the value.
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ELF_RTYPE_CLASS_COPY iff TYPE should not be allowed to resolve to one
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of the main executable's symbols, as for a COPY reloc. */
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#ifndef RTLD_BOOTSTRAP
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# define elf_machine_type_class(type) \
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((((type) == R_ARM_JUMP_SLOT || (type) == R_ARM_TLS_DTPMOD32 \
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|| (type) == R_ARM_TLS_DTPOFF32 || (type) == R_ARM_TLS_TPOFF32 \
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|| (type) == R_ARM_TLS_DESC) \
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* ELF_RTYPE_CLASS_PLT) \
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#else
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#define elf_machine_type_class(type) \
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((((type) == R_ARM_JUMP_SLOT) * ELF_RTYPE_CLASS_PLT) \
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#endif
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/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */
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#define ELF_MACHINE_JMP_SLOT R_ARM_JUMP_SLOT
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/* We define an initialization functions. This is called very early in
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_dl_sysdep_start. */
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#define DL_PLATFORM_INIT dl_platform_init ()
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static inline void __attribute__ ((unused))
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dl_platform_init (void)
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{
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if (GLRO(dl_platform) != NULL && *GLRO(dl_platform) == '\0')
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/* Avoid an empty string which would disturb us. */
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GLRO(dl_platform) = NULL;
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}
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static inline Elf32_Addr
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elf_machine_fixup_plt (struct link_map *map, lookup_t t,
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const ElfW(Sym) *refsym, const ElfW(Sym) *sym,
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const Elf32_Rel *reloc,
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Elf32_Addr *reloc_addr, Elf32_Addr value)
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{
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return *reloc_addr = value;
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}
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/* Return the final value of a plt relocation. */
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static inline Elf32_Addr
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elf_machine_plt_value (struct link_map *map, const Elf32_Rel *reloc,
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Elf32_Addr value)
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{
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return value;
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}
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#endif /* !dl_machine_h */
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/* Names of the architecture-specific auditing callback functions. */
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#define ARCH_LA_PLTENTER arm_gnu_pltenter
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#define ARCH_LA_PLTEXIT arm_gnu_pltexit
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#ifdef RESOLVE_MAP
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/* Handle a PC24 reloc, including the out-of-range case. */
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static void
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relocate_pc24 (struct link_map *map, Elf32_Addr value,
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Elf32_Addr *const reloc_addr, Elf32_Sword addend)
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{
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Elf32_Addr new_value;
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/* Set NEW_VALUE based on V, and return true iff it overflows 24 bits. */
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inline bool set_new_value (Elf32_Addr v)
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{
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new_value = v + addend - (Elf32_Addr) reloc_addr;
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Elf32_Addr topbits = new_value & 0xfe000000;
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return topbits != 0xfe000000 && topbits != 0x00000000;
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}
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if (set_new_value (value))
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{
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/* The PC-relative address doesn't fit in 24 bits! */
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static void *fix_page;
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static size_t fix_offset;
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if (fix_page == NULL)
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{
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void *new_page = __mmap (NULL, GLRO(dl_pagesize),
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PROT_READ | PROT_WRITE | PROT_EXEC,
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MAP_PRIVATE | MAP_ANON, -1, 0);
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if (new_page == MAP_FAILED)
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_dl_signal_error (0, map->l_name, NULL,
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"could not map page for fixup");
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fix_page = new_page;
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assert (fix_offset == 0);
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}
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Elf32_Word *fix_address = fix_page + fix_offset;
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fix_address[0] = 0xe51ff004; /* ldr pc, [pc, #-4] */
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fix_address[1] = value;
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fix_offset += sizeof fix_address[0] * 2;
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if (fix_offset >= GLRO(dl_pagesize))
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{
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fix_page = NULL;
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fix_offset = 0;
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}
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if (set_new_value ((Elf32_Addr) fix_address))
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_dl_signal_error (0, map->l_name, NULL,
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"R_ARM_PC24 relocation out of range");
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}
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*reloc_addr = (*reloc_addr & 0xff000000) | ((new_value >> 2) & 0x00ffffff);
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}
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/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
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MAP is the object containing the reloc. */
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static inline void
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__attribute__ ((always_inline))
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elf_machine_rel (struct link_map *map, struct r_scope_elem *scope[],
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const Elf32_Rel *reloc, const Elf32_Sym *sym,
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const struct r_found_version *version,
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void *const reloc_addr_arg, int skip_ifunc)
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{
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Elf32_Addr *const reloc_addr = reloc_addr_arg;
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const unsigned int r_type = ELF32_R_TYPE (reloc->r_info);
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#if !defined RTLD_BOOTSTRAP
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if (__builtin_expect (r_type == R_ARM_RELATIVE, 0))
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*reloc_addr += map->l_addr;
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# ifndef RTLD_BOOTSTRAP
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else if (__builtin_expect (r_type == R_ARM_NONE, 0))
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return;
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# endif
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else
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#endif
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{
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const Elf32_Sym *const refsym = sym;
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struct link_map *sym_map = RESOLVE_MAP (map, scope, &sym, version,
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r_type);
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Elf32_Addr value = SYMBOL_ADDRESS (sym_map, sym, true);
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if (sym != NULL
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&& __builtin_expect (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC, 0)
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&& __builtin_expect (sym->st_shndx != SHN_UNDEF, 1)
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&& __builtin_expect (!skip_ifunc, 1))
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value = elf_ifunc_invoke (value);
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switch (r_type)
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{
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case R_ARM_COPY:
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if (sym == NULL)
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/* This can happen in trace mode if an object could not be
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found. */
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break;
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if (sym->st_size > refsym->st_size
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|| (GLRO(dl_verbose) && sym->st_size < refsym->st_size))
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{
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const char *strtab;
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strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
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_dl_error_printf ("\
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%s: Symbol `%s' has different size in shared object, consider re-linking\n",
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RTLD_PROGNAME, strtab + refsym->st_name);
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}
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memcpy (reloc_addr_arg, (void *) value,
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MIN (sym->st_size, refsym->st_size));
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break;
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case R_ARM_GLOB_DAT:
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case R_ARM_JUMP_SLOT:
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# ifdef RTLD_BOOTSTRAP
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/* Fix weak undefined references. */
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if (sym != NULL && sym->st_value == 0)
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*reloc_addr = 0;
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else
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# endif
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*reloc_addr = value;
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break;
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case R_ARM_ABS32:
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|
{
|
||
|
|
struct unaligned
|
||
|
|
{
|
||
|
|
Elf32_Addr x;
|
||
|
|
} __attribute__ ((packed, may_alias));
|
||
|
|
# ifndef RTLD_BOOTSTRAP
|
||
|
|
/* This is defined in rtld.c, but nowhere in the static
|
||
|
|
libc.a; make the reference weak so static programs can
|
||
|
|
still link. This declaration cannot be done when
|
||
|
|
compiling rtld.c (i.e. #ifdef RTLD_BOOTSTRAP) because
|
||
|
|
rtld.c contains the common defn for _dl_rtld_map, which
|
||
|
|
is incompatible with a weak decl in the same file. */
|
||
|
|
# ifndef SHARED
|
||
|
|
weak_extern (_dl_rtld_map);
|
||
|
|
# endif
|
||
|
|
if (map == &GL(dl_rtld_map))
|
||
|
|
/* Undo the relocation done here during bootstrapping.
|
||
|
|
Now we will relocate it anew, possibly using a
|
||
|
|
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 -= SYMBOL_ADDRESS (map, refsym, true);
|
||
|
|
# endif
|
||
|
|
/* Support relocations on mis-aligned offsets. */
|
||
|
|
((struct unaligned *) reloc_addr)->x += value;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
case R_ARM_TLS_DESC:
|
||
|
|
{
|
||
|
|
struct tlsdesc *td = (struct tlsdesc *)reloc_addr;
|
||
|
|
|
||
|
|
# ifndef RTLD_BOOTSTRAP
|
||
|
|
if (! sym)
|
||
|
|
td->entry = _dl_tlsdesc_undefweak;
|
||
|
|
else
|
||
|
|
# endif
|
||
|
|
{
|
||
|
|
if (ELF32_R_SYM (reloc->r_info) == STN_UNDEF)
|
||
|
|
value = td->argument.value;
|
||
|
|
else
|
||
|
|
value = sym->st_value;
|
||
|
|
|
||
|
|
# ifndef RTLD_BOOTSTRAP
|
||
|
|
# ifndef SHARED
|
||
|
|
CHECK_STATIC_TLS (map, sym_map);
|
||
|
|
# else
|
||
|
|
if (!TRY_STATIC_TLS (map, sym_map))
|
||
|
|
{
|
||
|
|
td->argument.pointer
|
||
|
|
= _dl_make_tlsdesc_dynamic (sym_map, value);
|
||
|
|
td->entry = _dl_tlsdesc_dynamic;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
{
|
||
|
|
td->argument.value = value + sym_map->l_tls_offset;
|
||
|
|
td->entry = _dl_tlsdesc_return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case R_ARM_PC24:
|
||
|
|
relocate_pc24 (map, value, reloc_addr,
|
||
|
|
/* Sign-extend the 24-bit addend in the
|
||
|
|
instruction (which counts instructions), and
|
||
|
|
then shift it up two so as to count bytes. */
|
||
|
|
(((Elf32_Sword) *reloc_addr << 8) >> 8) << 2);
|
||
|
|
break;
|
||
|
|
#if !defined RTLD_BOOTSTRAP
|
||
|
|
case R_ARM_TLS_DTPMOD32:
|
||
|
|
/* Get the information from the link map returned by the
|
||
|
|
resolv function. */
|
||
|
|
if (sym_map != NULL)
|
||
|
|
*reloc_addr = sym_map->l_tls_modid;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case R_ARM_TLS_DTPOFF32:
|
||
|
|
if (sym != NULL)
|
||
|
|
*reloc_addr += sym->st_value;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case R_ARM_TLS_TPOFF32:
|
||
|
|
if (sym != NULL)
|
||
|
|
{
|
||
|
|
CHECK_STATIC_TLS (map, sym_map);
|
||
|
|
*reloc_addr += sym->st_value + sym_map->l_tls_offset;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case R_ARM_IRELATIVE:
|
||
|
|
value = map->l_addr + *reloc_addr;
|
||
|
|
if (__glibc_likely (!skip_ifunc))
|
||
|
|
value = ((Elf32_Addr (*) (int)) value) (GLRO(dl_hwcap));
|
||
|
|
*reloc_addr = value;
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
default:
|
||
|
|
_dl_reloc_bad_type (map, r_type, 0);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
# ifndef RTLD_BOOTSTRAP
|
||
|
|
static inline void
|
||
|
|
__attribute__ ((always_inline))
|
||
|
|
elf_machine_rela (struct link_map *map, struct r_scope_elem *scope[],
|
||
|
|
const Elf32_Rela *reloc, const Elf32_Sym *sym,
|
||
|
|
const struct r_found_version *version,
|
||
|
|
void *const reloc_addr_arg, int skip_ifunc)
|
||
|
|
{
|
||
|
|
Elf32_Addr *const reloc_addr = reloc_addr_arg;
|
||
|
|
const unsigned int r_type = ELF32_R_TYPE (reloc->r_info);
|
||
|
|
|
||
|
|
if (__builtin_expect (r_type == R_ARM_RELATIVE, 0))
|
||
|
|
*reloc_addr = map->l_addr + reloc->r_addend;
|
||
|
|
else if (__builtin_expect (r_type == R_ARM_NONE, 0))
|
||
|
|
return;
|
||
|
|
else
|
||
|
|
{
|
||
|
|
const Elf32_Sym *const refsym = sym;
|
||
|
|
struct link_map *sym_map = RESOLVE_MAP (map, scope, &sym, version, r_type);
|
||
|
|
Elf32_Addr value = SYMBOL_ADDRESS (sym_map, sym, true);
|
||
|
|
|
||
|
|
if (sym != NULL
|
||
|
|
&& __builtin_expect (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC, 0)
|
||
|
|
&& __builtin_expect (sym->st_shndx != SHN_UNDEF, 1)
|
||
|
|
&& __builtin_expect (!skip_ifunc, 1))
|
||
|
|
value = elf_ifunc_invoke (value);
|
||
|
|
|
||
|
|
switch (r_type)
|
||
|
|
{
|
||
|
|
/* Not needed for dl-conflict.c. */
|
||
|
|
case R_ARM_COPY:
|
||
|
|
if (sym == NULL)
|
||
|
|
/* This can happen in trace mode if an object could not be
|
||
|
|
found. */
|
||
|
|
break;
|
||
|
|
if (sym->st_size > refsym->st_size
|
||
|
|
|| (GLRO(dl_verbose) && sym->st_size < refsym->st_size))
|
||
|
|
{
|
||
|
|
const char *strtab;
|
||
|
|
|
||
|
|
strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
|
||
|
|
_dl_error_printf ("\
|
||
|
|
%s: Symbol `%s' has different size in shared object, consider re-linking\n",
|
||
|
|
RTLD_PROGNAME, strtab + refsym->st_name);
|
||
|
|
}
|
||
|
|
memcpy (reloc_addr_arg, (void *) value,
|
||
|
|
MIN (sym->st_size, refsym->st_size));
|
||
|
|
break;
|
||
|
|
case R_ARM_GLOB_DAT:
|
||
|
|
case R_ARM_JUMP_SLOT:
|
||
|
|
case R_ARM_ABS32:
|
||
|
|
*reloc_addr = value + reloc->r_addend;
|
||
|
|
break;
|
||
|
|
case R_ARM_PC24:
|
||
|
|
relocate_pc24 (map, value, reloc_addr, reloc->r_addend);
|
||
|
|
break;
|
||
|
|
#if !defined RTLD_BOOTSTRAP
|
||
|
|
case R_ARM_TLS_DTPMOD32:
|
||
|
|
/* Get the information from the link map returned by the
|
||
|
|
resolv function. */
|
||
|
|
if (sym_map != NULL)
|
||
|
|
*reloc_addr = sym_map->l_tls_modid;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case R_ARM_TLS_DTPOFF32:
|
||
|
|
*reloc_addr = (sym == NULL ? 0 : sym->st_value) + reloc->r_addend;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case R_ARM_TLS_TPOFF32:
|
||
|
|
if (sym != NULL)
|
||
|
|
{
|
||
|
|
CHECK_STATIC_TLS (map, sym_map);
|
||
|
|
*reloc_addr = (sym->st_value + sym_map->l_tls_offset
|
||
|
|
+ reloc->r_addend);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case R_ARM_IRELATIVE:
|
||
|
|
value = map->l_addr + reloc->r_addend;
|
||
|
|
if (__glibc_likely (!skip_ifunc))
|
||
|
|
value = ((Elf32_Addr (*) (int)) value) (GLRO(dl_hwcap));
|
||
|
|
*reloc_addr = value;
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
default:
|
||
|
|
_dl_reloc_bad_type (map, r_type, 0);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
# endif
|
||
|
|
|
||
|
|
static inline void
|
||
|
|
__attribute__ ((always_inline))
|
||
|
|
elf_machine_rel_relative (Elf32_Addr l_addr, const Elf32_Rel *reloc,
|
||
|
|
void *const reloc_addr_arg)
|
||
|
|
{
|
||
|
|
Elf32_Addr *const reloc_addr = reloc_addr_arg;
|
||
|
|
*reloc_addr += l_addr;
|
||
|
|
}
|
||
|
|
|
||
|
|
# ifndef RTLD_BOOTSTRAP
|
||
|
|
static inline void
|
||
|
|
__attribute__ ((always_inline))
|
||
|
|
elf_machine_rela_relative (Elf32_Addr l_addr, const Elf32_Rela *reloc,
|
||
|
|
void *const reloc_addr_arg)
|
||
|
|
{
|
||
|
|
Elf32_Addr *const reloc_addr = reloc_addr_arg;
|
||
|
|
*reloc_addr = l_addr + reloc->r_addend;
|
||
|
|
}
|
||
|
|
# endif
|
||
|
|
|
||
|
|
static inline void
|
||
|
|
__attribute__ ((always_inline))
|
||
|
|
elf_machine_lazy_rel (struct link_map *map, struct r_scope_elem *scope[],
|
||
|
|
Elf32_Addr l_addr, const Elf32_Rel *reloc,
|
||
|
|
int skip_ifunc)
|
||
|
|
{
|
||
|
|
Elf32_Addr *const reloc_addr = (void *) (l_addr + reloc->r_offset);
|
||
|
|
const unsigned int r_type = ELF32_R_TYPE (reloc->r_info);
|
||
|
|
/* Check for unexpected PLT reloc type. */
|
||
|
|
if (__builtin_expect (r_type == R_ARM_JUMP_SLOT, 1))
|
||
|
|
{
|
||
|
|
if (__builtin_expect (map->l_mach.plt, 0) == 0)
|
||
|
|
*reloc_addr += l_addr;
|
||
|
|
else
|
||
|
|
*reloc_addr = map->l_mach.plt;
|
||
|
|
}
|
||
|
|
else if (__builtin_expect (r_type == R_ARM_TLS_DESC, 1))
|
||
|
|
{
|
||
|
|
const Elf_Symndx symndx = ELFW (R_SYM) (reloc->r_info);
|
||
|
|
const ElfW (Sym) *symtab = (const void *)D_PTR (map, l_info[DT_SYMTAB]);
|
||
|
|
const ElfW (Sym) *sym = &symtab[symndx];
|
||
|
|
const struct r_found_version *version = NULL;
|
||
|
|
|
||
|
|
if (map->l_info[VERSYMIDX (DT_VERSYM)] != NULL)
|
||
|
|
{
|
||
|
|
const ElfW (Half) *vernum =
|
||
|
|
(const void *)D_PTR (map, l_info[VERSYMIDX (DT_VERSYM)]);
|
||
|
|
version = &map->l_versions[vernum[symndx] & 0x7fff];
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Always initialize TLS descriptors completely, because lazy
|
||
|
|
initialization requires synchronization at every TLS access. */
|
||
|
|
elf_machine_rel (map, scope, reloc, sym, version, reloc_addr, skip_ifunc);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
_dl_reloc_bad_type (map, r_type, 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* RESOLVE_MAP */
|