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| author | H.J. Lu <hjl.tools@gmail.com> | 2024-01-09 12:23:27 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2024-01-10 05:20:20 -0800 |
| commit | 874214db624a8e6c5d2dbe47419fab126f330d68 (patch) | |
| tree | 2fe3f54cb138d9046767f101643c8c14e931355a /sysdeps/i386/dl-machine.h | |
| parent | 7d544dd049a2e3f1480b668f51b72dcc89e376ab (diff) | |
| download | glibc-874214db624a8e6c5d2dbe47419fab126f330d68.zip glibc-874214db624a8e6c5d2dbe47419fab126f330d68.tar.gz glibc-874214db624a8e6c5d2dbe47419fab126f330d68.tar.bz2 | |
i386: Remove CET support bits
1. Remove _dl_runtime_resolve_shstk and _dl_runtime_profile_shstk.
2. Move CET offsets from x86 cpu-features-offsets.sym to x86-64
features-offsets.sym.
3. Rename x86 cet-control.h to x86-64 feature-control.h since it is only
for x86-64 and also used for PLT rewrite.
4. Add x86-64 ldsodefs.h to include feature-control.h.
5. Change TUNABLE_CALLBACK (set_plt_rewrite) to x86-64 only.
6. Move x86 dl-procruntime.c to x86-64.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/i386/dl-machine.h')
| -rw-r--r-- | sysdeps/i386/dl-machine.h | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h index c69ae16..fc1ef96 100644 --- a/sysdeps/i386/dl-machine.h +++ b/sysdeps/i386/dl-machine.h @@ -65,9 +65,6 @@ elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[], extern void _dl_runtime_profile (Elf32_Word) attribute_hidden; extern void _dl_runtime_resolve_shstk (Elf32_Word) attribute_hidden; extern void _dl_runtime_profile_shstk (Elf32_Word) attribute_hidden; - /* Check if SHSTK is enabled by kernel. */ - bool shstk_enabled - = (GL(dl_x86_feature_1) & GNU_PROPERTY_X86_FEATURE_1_SHSTK) != 0; if (l->l_info[DT_JMPREL] && lazy) { @@ -95,9 +92,7 @@ elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[], #ifdef SHARED if (__glibc_unlikely (profile)) { - got[2] = (shstk_enabled - ? (Elf32_Addr) &_dl_runtime_profile_shstk - : (Elf32_Addr) &_dl_runtime_profile); + got[2] = (Elf32_Addr) &_dl_runtime_profile; if (GLRO(dl_profile) != NULL && _dl_name_match_p (GLRO(dl_profile), l)) @@ -109,9 +104,7 @@ elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[], #endif /* This function will get called to fix up the GOT entry indicated by the offset on the stack, and then jump to the resolved address. */ - got[2] = (shstk_enabled - ? (Elf32_Addr) &_dl_runtime_resolve_shstk - : (Elf32_Addr) &_dl_runtime_resolve); + got[2] = (Elf32_Addr) &_dl_runtime_resolve; } return lazy; |