diff options
Diffstat (limited to 'sysdeps/x86_64/memset.S')
| -rw-r--r-- | sysdeps/x86_64/memset.S | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/sysdeps/x86_64/memset.S b/sysdeps/x86_64/memset.S index 6c69f4b442..ccb2aae480 100644 --- a/sysdeps/x86_64/memset.S +++ b/sysdeps/x86_64/memset.S @@ -26,6 +26,15 @@ .text #if !defined NOT_IN_libc ENTRY(__bzero) + testq %rsi, %rsi + jz L(only_return) + +#if defined __CHKP__ && defined __CHKWR__ + bndcl (%rdi), %bnd0 + bndcu -1(%rdi, %rsi), %bnd0 +# endif + + mov %rdi, %rax movq %rdi, %rax /* Set return value. */ movq %rsi, %rdx /* Set n. */ pxor %xmm8, %xmm8 @@ -53,7 +62,20 @@ ENTRY_CHK (__memset_chk) END_CHK (__memset_chk) #endif +#if defined __CHKP__ && defined __CHKWR__ +ENTRY (chkp_memset_nochk) + jmp L(entry_from_chkp_memset_nochk) +END (chkp_memset_nochk) +#endif + ENTRY (memset) + testq %rdx, %rdx + jz L(only_return) +#if defined __CHKP__ && defined __CHKWR__ + bndcl (%rdi), %bnd0 + bndcu -1(%rdi, %rdx), %bnd0 +L(entry_from_chkp_memset_nochk): +#endif movd %esi, %xmm8 movq %rdi, %rax punpcklbw %xmm8, %xmm8 @@ -71,6 +93,9 @@ L(entry_from_bzero): L(return): rep ret +L(only_return): + movq %rdi, %rax + ret ALIGN (4) L(between_32_64_bytes): movdqu %xmm8, 16(%rdi) @@ -129,6 +154,11 @@ L(between8_16bytes): END (memset) libc_hidden_builtin_def (memset) +#if defined __CHKP__ && defined __CHKWR__ +weak_alias (memset, chkp_memset_nobnd) +weak_alias (chkp_memset_nochk, chkp_memset_nobnd_nochk) +#endif + #if defined PIC && !defined NOT_IN_libc && !defined USE_MULTIARCH strong_alias (__memset_chk, __memset_zero_constant_len_parameter) .section .gnu.warning.__memset_zero_constant_len_parameter |