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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-01-13 17:58:00 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-02-10 09:16:12 -0300 |
| commit | 6628c742b2c16e785d3c884d9deeda5adb30ca12 (patch) | |
| tree | 493580e40aef171896584e1d3d32bbe14c15140b /sysdeps/powerpc/powerpc64 | |
| parent | 8c8510ab2790039e58995ef3a22309582413d3ff (diff) | |
| download | glibc-6628c742b2c16e785d3c884d9deeda5adb30ca12.tar.gz glibc-6628c742b2c16e785d3c884d9deeda5adb30ca12.tar.xz glibc-6628c742b2c16e785d3c884d9deeda5adb30ca12.zip | |
elf: Remove prelink support
Prelinked binaries and libraries still work, the dynamic tags DT_GNU_PRELINKED, DT_GNU_LIBLIST, DT_GNU_CONFLICT just ignored (meaning the process is reallocated as default). The loader environment variable TRACE_PRELINKING is also removed, since it used solely on prelink. Checked on x86_64-linux-gnu, i686-linux-gnu, and aarch64-linux-gnu. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Diffstat (limited to 'sysdeps/powerpc/powerpc64')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/dl-machine.h | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/sysdeps/powerpc/powerpc64/dl-machine.h b/sysdeps/powerpc/powerpc64/dl-machine.h index a505998351..5da5de7a0a 100644 --- a/sysdeps/powerpc/powerpc64/dl-machine.h +++ b/sysdeps/powerpc/powerpc64/dl-machine.h @@ -537,36 +537,6 @@ elf_machine_fixup_plt (struct link_map *map, lookup_t sym_map, return finaladdr; } -static inline void __attribute__ ((always_inline)) -elf_machine_plt_conflict (struct link_map *map, lookup_t sym_map, - const ElfW(Sym) *refsym, const ElfW(Sym) *sym, - const Elf64_Rela *reloc, - Elf64_Addr *reloc_addr, Elf64_Addr finaladdr) -{ -#if _CALL_ELF != 2 - Elf64_FuncDesc *plt = (Elf64_FuncDesc *) reloc_addr; - Elf64_FuncDesc *rel = (Elf64_FuncDesc *) finaladdr; - Elf64_FuncDesc zero_fd = {0, 0, 0}; - - if (sym_map == NULL) - finaladdr = 0; - - if (finaladdr == 0) - rel = &zero_fd; - - plt->fd_func = rel->fd_func; - plt->fd_aux = rel->fd_aux; - plt->fd_toc = rel->fd_toc; - PPC_DCBST (&plt->fd_func); - PPC_DCBST (&plt->fd_aux); - PPC_DCBST (&plt->fd_toc); - PPC_SYNC; -#else - finaladdr += ppc64_local_entry_offset (map, sym_map, refsym, sym); - *reloc_addr = finaladdr; -#endif -} - /* Return the final value of a plt relocation. */ static inline Elf64_Addr elf_machine_plt_value (struct link_map *map, const Elf64_Rela *reloc, @@ -639,7 +609,6 @@ resolve_ifunc (Elf64_Addr value, const struct link_map *map, const struct link_map *sym_map) { #if _CALL_ELF != 2 -#ifndef RESOLVE_CONFLICT_FIND_MAP /* The function we are calling may not yet have its opd entry relocated. */ Elf64_FuncDesc opd; if (map != sym_map @@ -658,7 +627,6 @@ resolve_ifunc (Elf64_Addr value, asm ("" : "=r" (value) : "0" (&opd), "X" (opd)); } #endif -#endif return ((Elf64_Addr (*) (unsigned long int)) value) (GLRO(dl_hwcap)); } @@ -722,13 +690,8 @@ elf_machine_rela (struct link_map *map, struct r_scope_elem *scope[], value = resolve_ifunc (value, map, sym_map); /* Fall thru */ case R_PPC64_JMP_SLOT: -#ifdef RESOLVE_CONFLICT_FIND_MAP - elf_machine_plt_conflict (map, sym_map, refsym, sym, - reloc, reloc_addr, value); -#else elf_machine_fixup_plt (map, sym_map, refsym, sym, reloc, reloc_addr, value); -#endif return; case R_PPC64_DTPMOD64: |