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| author | Liubov Dmitrieva <ldmitrie@sourceware.org> | 2013-08-30 18:37:28 +0400 |
|---|---|---|
| committer | Liubov Dmitrieva <ldmitrie@sourceware.org> | 2013-10-23 23:51:44 +0400 |
| commit | 029183a4ca3f765f63e7b64bc260622f02b04539 (patch) | |
| tree | c7f6912d9575e27f691f219ad9437e9af39e016e /sysdeps/x86_64/multiarch/strrchr.S | |
| parent | 01d5454d13d2c21b9a08b28441d37a7ddce089a6 (diff) | |
| download | glibc-ldmitrie/intel_mpx.tar.gz glibc-ldmitrie/intel_mpx.tar.xz glibc-ldmitrie/intel_mpx.zip | |
Implemented bound check support for string/memory routines for x86_64. ldmitrie/intel_mpx
TODO: Fix bound check support in strcmp-sse2 and implement in strspn, strstr and strcspn.
Diffstat (limited to 'sysdeps/x86_64/multiarch/strrchr.S')
| -rw-r--r-- | sysdeps/x86_64/multiarch/strrchr.S | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sysdeps/x86_64/multiarch/strrchr.S b/sysdeps/x86_64/multiarch/strrchr.S index 3f92a41ef9..1fed105bf0 100644 --- a/sysdeps/x86_64/multiarch/strrchr.S +++ b/sysdeps/x86_64/multiarch/strrchr.S @@ -97,6 +97,10 @@ __strrchr_sse42: CALL_MCOUNT testb %sil, %sil je __strend_sse4 +# ifdef __CHKP__ + bndcl (%rdi), %bnd0 + bndcu (%rdi), %bnd0 +# endif xor %eax,%eax /* RAX has the last occurrence of s. */ movd %esi, %xmm1 punpcklbw %xmm1, %xmm1 @@ -135,6 +139,9 @@ L(unaligned_no_byte): contain the NULL terminator. */ jg L(exit) addq $16, %r8 +# ifdef __CHKP__ + bndcu (%r8), %bnd0 +# endif /* Loop start on aligned string. */ .p2align 4 @@ -142,6 +149,9 @@ L(loop): pcmpistri $0x4a, (%r8), %xmm1 jbe L(match_or_eos) addq $16, %r8 +# ifdef __CHKP__ + bndcu (%r8), %bnd0 +# endif jmp L(loop) .p2align 4 L(match_or_eos): @@ -149,11 +159,17 @@ L(match_or_eos): L(match_no_eos): leaq (%r8,%rcx), %rax addq $16, %r8 +# ifdef __CHKP__ + bndcu (%r8), %bnd0 +# endif jmp L(loop) .p2align 4 L(had_eos): jnc L(exit) leaq (%r8,%rcx), %rax +# ifdef __CHKP__ + bndcu (%rax), %bnd0 +# endif .p2align 4 L(exit): ret |