diff options
| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-11-06 17:25:46 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-11-21 16:15:42 -0300 |
| commit | 55f41ef8de4a4d0c5762d78659e11202d3c765d4 (patch) | |
| tree | 205676e94304e4a3a43e3a4eee4e027986593f09 /sysdeps/x86_64 | |
| parent | 4a133885a7c8ae7ebe34e36fcdb353f8e94c810f (diff) | |
| download | glibc-55f41ef8de4a4d0c5762d78659e11202d3c765d4.tar.gz glibc-55f41ef8de4a4d0c5762d78659e11202d3c765d4.tar.xz glibc-55f41ef8de4a4d0c5762d78659e11202d3c765d4.zip | |
elf: Remove LD_PROFILE for static binaries
The _dl_non_dynamic_init does not parse LD_PROFILE, which does not enable profile for dlopen objects. Since dlopen is deprecated for static objects, it is better to remove the support. It also allows to trim down libc.a of profile support. Checked on x86_64-linux-gnu. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Diffstat (limited to 'sysdeps/x86_64')
| -rw-r--r-- | sysdeps/x86_64/dl-machine.h | 2 | ||||
| -rw-r--r-- | sysdeps/x86_64/dl-trampoline.S | 64 |
2 files changed, 36 insertions, 30 deletions
diff --git a/sysdeps/x86_64/dl-machine.h b/sysdeps/x86_64/dl-machine.h index 9ea2a70837..581a2f1a9e 100644 --- a/sysdeps/x86_64/dl-machine.h +++ b/sysdeps/x86_64/dl-machine.h @@ -89,6 +89,7 @@ elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[], const struct cpu_features* cpu_features = __get_cpu_features (); +#ifdef SHARED /* The got[2] entry contains the address of a function which gets called to get the address of a so far unresolved function and jump to it. The profiling extension of the dynamic linker allows @@ -111,6 +112,7 @@ elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[], GL(dl_profile_map) = l; } else +#endif { /* This function will get called to fix up the GOT entry indicated by the offset on the stack, and then jump to diff --git a/sysdeps/x86_64/dl-trampoline.S b/sysdeps/x86_64/dl-trampoline.S index a6b9a1826b..3fd30d58fc 100644 --- a/sysdeps/x86_64/dl-trampoline.S +++ b/sysdeps/x86_64/dl-trampoline.S @@ -53,45 +53,49 @@ #define RESTORE_AVX -#define VEC_SIZE 64 -#define VMOVA vmovdqa64 -#define VEC(i) zmm##i -#define _dl_runtime_profile _dl_runtime_profile_avx512 -# define SECTION(p) p##.evex512 -#include "dl-trampoline.h" -#undef _dl_runtime_profile -#undef VEC -#undef VMOVA -#undef VEC_SIZE -#undef SECTION - -#if MINIMUM_X86_ISA_LEVEL <= AVX_X86_ISA_LEVEL -# define VEC_SIZE 32 -# define VMOVA vmovdqa -# define VEC(i) ymm##i -# define SECTION(p) p##.avx -# define _dl_runtime_profile _dl_runtime_profile_avx +#ifdef SHARED +# define VEC_SIZE 64 +# define VMOVA vmovdqa64 +# define VEC(i) zmm##i +# define _dl_runtime_profile _dl_runtime_profile_avx512 +# define SECTION(p) p##.evex512 # include "dl-trampoline.h" # undef _dl_runtime_profile # undef VEC # undef VMOVA # undef VEC_SIZE # undef SECTION -#endif -#if MINIMUM_X86_ISA_LEVEL < AVX_X86_ISA_LEVEL +# if MINIMUM_X86_ISA_LEVEL <= AVX_X86_ISA_LEVEL +# define VEC_SIZE 32 +# define VMOVA vmovdqa +# define VEC(i) ymm##i +# define SECTION(p) p##.avx +# define _dl_runtime_profile _dl_runtime_profile_avx +# include "dl-trampoline.h" +# undef _dl_runtime_profile +# undef VEC +# undef VMOVA +# undef VEC_SIZE +# undef SECTION +# endif + +# if MINIMUM_X86_ISA_LEVEL < AVX_X86_ISA_LEVEL /* movaps/movups is 1-byte shorter. */ -# define VEC_SIZE 16 -# define VMOVA movaps -# define VEC(i) xmm##i -# define _dl_runtime_profile _dl_runtime_profile_sse -# undef RESTORE_AVX -# include "dl-trampoline.h" -# undef _dl_runtime_profile -# undef VEC -# undef VMOVA -# undef VEC_SIZE +# define VEC_SIZE 16 +# define VMOVA movaps +# define VEC(i) xmm##i +# define _dl_runtime_profile _dl_runtime_profile_sse +# undef RESTORE_AVX +# include "dl-trampoline.h" +# undef _dl_runtime_profile +# undef VEC +# undef VMOVA +# undef VEC_SIZE +# endif +#endif /* SHARED */ +#if MINIMUM_X86_ISA_LEVEL < AVX_X86_ISA_LEVEL # define USE_FXSAVE # define STATE_SAVE_ALIGNMENT 16 # define _dl_runtime_resolve _dl_runtime_resolve_fxsave |