[PATCH 08/11] whirlpool-sse2-amd64: clear vectors registers
Jussi Kivilinna <[email protected]>
| Newsgroups | gmane.comp.encryption.gpg.libgcrypt.devel |
|---|---|
| Message-ID | <[email protected]> |
* cipher/whirlpool-sse2-amd64.S (CLEAR_REG): New. (_gcry_whirlpool_transform_amd64): Clear vectors registers at exit. -- Signed-off-by: Jussi Kivilinna <[email protected]> --- cipher/whirlpool-sse2-amd64.S | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/cipher/whirlpool-sse2-amd64.S b/cipher/whirlpool-sse2-amd64.S index 37648faa..39959a45 100644 --- a/cipher/whirlpool-sse2-amd64.S +++ b/cipher/whirlpool-sse2-amd64.S @@ -27,6 +27,8 @@ .text +#define CLEAR_REG(v) pxor v, v + /* look-up table offsets on RTAB */ #define RC (0) #define C0 (RC + (8 * 10)) @@ -338,6 +340,24 @@ _gcry_whirlpool_transform_amd64: CFI_RESTORE(%r15); addq $STACK_MAX, %rsp; CFI_ADJUST_CFA_OFFSET(-STACK_MAX); + + CLEAR_REG(%xmm0); + CLEAR_REG(%xmm1); + CLEAR_REG(%xmm2); + CLEAR_REG(%xmm3); + CLEAR_REG(%xmm4); + CLEAR_REG(%xmm5); + CLEAR_REG(%xmm6); + CLEAR_REG(%xmm7); + CLEAR_REG(%xmm8); + CLEAR_REG(%xmm9); + CLEAR_REG(%xmm10); + CLEAR_REG(%xmm11); + CLEAR_REG(%xmm12); + CLEAR_REG(%xmm13); + CLEAR_REG(%xmm14); + CLEAR_REG(%xmm15); + .Lskip: movl $(STACK_MAX + 8), %eax; ret_spec_stop; -- 2.45.2