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| author | Igor Zamyatin <igor.zamyatin@intel.com> | 2014-04-16 14:43:16 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2014-04-16 14:46:49 -0700 |
| commit | ea8ba7cd14d0f479bae8365ae5c4ef177bdd0aad (patch) | |
| tree | aa6c46df56a9ac7567b3bcfa3db37f55ac7b3775 /sysdeps/x86 | |
| parent | 3c799e913168a84197c08e62d47be666329308e0 (diff) | |
| download | glibc-ea8ba7cd14d0f479bae8365ae5c4ef177bdd0aad.tar.gz glibc-ea8ba7cd14d0f479bae8365ae5c4ef177bdd0aad.tar.xz glibc-ea8ba7cd14d0f479bae8365ae5c4ef177bdd0aad.zip | |
Save/restore bound registers for _dl_runtime_profile
This patch saves and restores bound registers in x86-64 PLT for ld.so profile and LD_AUDIT: * sysdeps/x86_64/bits/link.h (La_x86_64_regs): Add lr_bnd. (La_x86_64_retval): Add lrv_bnd0 and lrv_bnd1. * sysdeps/x86_64/dl-trampoline.S (_dl_runtime_profile): Save Intel MPX bound registers before _dl_profile_fixup. * sysdeps/x86_64/dl-trampoline.h: Restore Intel MPX bound registers after _dl_profile_fixup. Save and restore bound registers bnd0/bnd1 when calling _dl_call_pltexit. * sysdeps/x86_64/link-defines.sym (BND_SIZE): New. (LR_BND_OFFSET): Likewise. (LRV_BND0_OFFSET): Likewise. (LRV_BND1_OFFSET): Likewise.
Diffstat (limited to 'sysdeps/x86')
| -rw-r--r-- | sysdeps/x86/bits/link.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sysdeps/x86/bits/link.h b/sysdeps/x86/bits/link.h index 8673b2119b..82522e5cc9 100644 --- a/sysdeps/x86/bits/link.h +++ b/sysdeps/x86/bits/link.h @@ -93,6 +93,9 @@ typedef struct La_x86_64_regs uint64_t lr_rsp; La_x86_64_xmm lr_xmm[8]; La_x86_64_vector lr_vector[8]; +#ifndef __ILP32__ + __int128 lr_bnd[4]; +#endif } La_x86_64_regs; /* Return values for calls from PLT on x86-64. */ @@ -106,6 +109,10 @@ typedef struct La_x86_64_retval long double lrv_st1; La_x86_64_vector lrv_vector0; La_x86_64_vector lrv_vector1; +#ifndef __ILP32__ + __int128 lrv_bnd0; + __int128 lrv_bnd1; +#endif } La_x86_64_retval; #define La_x32_regs La_x86_64_regs |