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| author | Ulrich Drepper <drepper@redhat.com> | 2002-02-02 05:20:42 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2002-02-02 05:20:42 +0000 |
| commit | 56c574425d7bf24ee32f26b947e1e013b1787402 (patch) | |
| tree | 7a42fa9eb1bd7530a9b473746d8cd08e3376bc73 /elf/dynamic-link.h | |
| parent | fb23eb252f19c0066fdd45b69673a1beb328295f (diff) | |
| download | glibc-56c574425d7bf24ee32f26b947e1e013b1787402.zip glibc-56c574425d7bf24ee32f26b947e1e013b1787402.tar.gz glibc-56c574425d7bf24ee32f26b947e1e013b1787402.tar.bz2 | |
Update.
2002-02-01 Ulrich Drepper <drepper@redhat.com>
* elf/dynamic-link.h (elf_get_dynamic_info): Optimize a bit for
starting ld.so itself. Move l_addr variable initialization closer
to use.
Diffstat (limited to 'elf/dynamic-link.h')
| -rw-r--r-- | elf/dynamic-link.h | 33 |
1 files changed, 23 insertions, 10 deletions
diff --git a/elf/dynamic-link.h b/elf/dynamic-link.h index 8792b8e..b0baa90 100644 --- a/elf/dynamic-link.h +++ b/elf/dynamic-link.h @@ -32,13 +32,13 @@ static inline void __attribute__ ((unused)) elf_get_dynamic_info (struct link_map *l) { ElfW(Dyn) *dyn = l->l_ld; - ElfW(Addr) l_addr; ElfW(Dyn) **info; - if (! dyn) +#ifndef RTLD_BOOTSTRAP + if (dyn == NULL) return; +#endif - l_addr = l->l_addr; info = l->l_info; while (dyn->d_tag != DT_NULL) @@ -65,8 +65,10 @@ elf_get_dynamic_info (struct link_map *l) } #ifndef DL_RO_DYN_SECTION /* Don't adjust .dynamic unnecessarily. */ - if (l_addr) + if (l->l_addr != 0) { + ElfW(Addr) l_addr = l->l_addr; + if (info[DT_PLTGOT] != NULL) info[DT_PLTGOT]->d_un.d_ptr += l_addr; if (info[DT_STRTAB] != NULL) @@ -89,23 +91,27 @@ elf_get_dynamic_info (struct link_map *l) #endif if (info[DT_PLTREL] != NULL) { -# if ELF_MACHINE_NO_RELA +#if ELF_MACHINE_NO_RELA assert (info[DT_PLTREL]->d_un.d_val == DT_REL); -# elif ELF_MACHINE_NO_REL +#elif ELF_MACHINE_NO_REL assert (info[DT_PLTREL]->d_un.d_val == DT_RELA); -# else +#else assert (info[DT_PLTREL]->d_un.d_val == DT_REL || info[DT_PLTREL]->d_un.d_val == DT_RELA); -# endif +#endif } -# if ! ELF_MACHINE_NO_RELA +#if ! ELF_MACHINE_NO_RELA if (info[DT_RELA] != NULL) assert (info[DT_RELAENT]->d_un.d_val == sizeof (ElfW(Rela))); # endif # if ! ELF_MACHINE_NO_REL if (info[DT_REL] != NULL) assert (info[DT_RELENT]->d_un.d_val == sizeof (ElfW(Rel))); -# endif +#endif +#ifdef RTLD_BOOTSTRAP + /* None of the flags should be set for the dynamic linker itself. */ + assert (info[DT_FLAGS] == NULL); +#else if (info[DT_FLAGS] != NULL) { /* Flags are used. Translate to the old form where available. @@ -119,11 +125,18 @@ elf_get_dynamic_info (struct link_map *l) if (flags & DF_BIND_NOW) info[DT_BIND_NOW] = info[DT_FLAGS]; } +#endif if (info[VERSYMIDX (DT_FLAGS_1)] != NULL) l->l_flags_1 = info[VERSYMIDX (DT_FLAGS_1)]->d_un.d_val; +#ifdef RTLD_BOOTSTRAP + /* The dynamic linker should have none of these set. */ + assert (info[DT_RUNPATH] == NULL); + assert (info[DT_RPATH] == NULL); +#else if (info[DT_RUNPATH] != NULL) /* If both RUNPATH and RPATH are given, the latter is ignored. */ info[DT_RPATH] = NULL; +#endif } #ifdef RESOLVE |