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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/strchr.S | |
| parent | 01d5454d13d2c21b9a08b28441d37a7ddce089a6 (diff) | |
| download | glibc-029183a4ca3f765f63e7b64bc260622f02b04539.tar.gz | |
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/strchr.S')
| -rw-r--r-- | sysdeps/x86_64/strchr.S | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/sysdeps/x86_64/strchr.S b/sysdeps/x86_64/strchr.S index d89f1eba8f..8519a81117 100644 --- a/sysdeps/x86_64/strchr.S +++ b/sysdeps/x86_64/strchr.S @@ -22,6 +22,10 @@ .text ENTRY (strchr) +#ifdef __CHKP__ + bndcl (%rdi), %bnd0 + bndcu (%rdi), %bnd0 +#endif movd %esi, %xmm1 movq %rdi, %rcx punpcklbw %xmm1, %xmm1 @@ -29,6 +33,9 @@ ENTRY (strchr) pxor %xmm2, %xmm2 punpcklbw %xmm1, %xmm1 orl $0xffffffff, %esi +#ifdef __CHKP__ + bndcu (%rdi), %bnd0 +#endif movdqa (%rdi), %xmm0 pshufd $0, %xmm1, %xmm1 subq %rdi, %rcx @@ -44,7 +51,11 @@ ENTRY (strchr) orl %edx, %ecx jnz 1f -2: movdqa (%rdi), %xmm0 +2: +#ifdef __CHKP__ + bndcu (%rdi), %bnd0 +#endif + movdqa (%rdi), %xmm0 leaq 16(%rdi), %rdi movdqa %xmm0, %xmm3 pcmpeqb %xmm1, %xmm0 |