diff options
Diffstat (limited to 'sysdeps/x86_64/strcspn.S')
| -rw-r--r-- | sysdeps/x86_64/strcspn.S | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/sysdeps/x86_64/strcspn.S b/sysdeps/x86_64/strcspn.S index 65f8a9e96e..0acca21399 100644 --- a/sysdeps/x86_64/strcspn.S +++ b/sysdeps/x86_64/strcspn.S @@ -29,6 +29,12 @@ .text ENTRY (strcspn) +# ifdef __CHKP__ + bndcl (%rdi), %bnd0 + bndcu (%rdi), %bnd0 + bndcl (%rsi), %bnd1 + bndcu (%rsi), %bnd1 +# endif movq %rdi, %rdx /* Save SRC. */ @@ -54,21 +60,34 @@ ENTRY (strcspn) have a correct zero-extended 64-bit value in %rcx. */ .p2align 4 -L(2): movb (%rax), %cl /* get byte from skipset */ +L(2): +# ifdef __CHKP__ + bndcu (%rax), %bnd1 +# endif + movb (%rax), %cl /* get byte from skipset */ testb %cl, %cl /* is NUL char? */ jz L(1) /* yes => start compare loop */ movb %cl, (%rsp,%rcx) /* set corresponding byte in skipset table */ +# ifdef __CHKP__ + bndcu 1(%rax), %bnd1 +# endif movb 1(%rax), %cl /* get byte from skipset */ testb $0xff, %cl /* is NUL char? */ jz L(1) /* yes => start compare loop */ movb %cl, (%rsp,%rcx) /* set corresponding byte in skipset table */ +# ifdef __CHKP__ + bndcu 2(%rax), %bnd1 +# endif movb 2(%rax), %cl /* get byte from skipset */ testb $0xff, %cl /* is NUL char? */ jz L(1) /* yes => start compare loop */ movb %cl, (%rsp,%rcx) /* set corresponding byte in skipset table */ +# ifdef __CHKP__ + bndcu 3(%rax), %bnd1 +# endif movb 3(%rax), %cl /* get byte from skipset */ addq $4, %rax /* increment skipset pointer */ movb %cl, (%rsp,%rcx) /* set corresponding byte in skipset table */ @@ -89,18 +108,30 @@ L(1): leaq -4(%rdx), %rax /* prepare loop */ .p2align 4 L(3): addq $4, %rax /* adjust pointer for full loop round */ +# ifdef __CHKP__ + bndcu (%rax), %bnd0 +# endif movb (%rax), %cl /* get byte from string */ cmpb %cl, (%rsp,%rcx) /* is it contained in skipset? */ je L(4) /* yes => return */ +# ifdef __CHKP__ + bndcu 1(%rax), %bnd0 +# endif movb 1(%rax), %cl /* get byte from string */ cmpb %cl, (%rsp,%rcx) /* is it contained in skipset? */ je L(5) /* yes => return */ +# ifdef __CHKP__ + bndcu 2(%rax), %bnd0 +# endif movb 2(%rax), %cl /* get byte from string */ cmpb %cl, (%rsp,%rcx) /* is it contained in skipset? */ jz L(6) /* yes => return */ +# ifdef __CHKP__ + bndcu 3(%rax), %bnd0 +# endif movb 3(%rax), %cl /* get byte from string */ cmpb %cl, (%rsp,%rcx) /* is it contained in skipset? */ jne L(3) /* no => start loop again */ |