cmll-x86_64.pl: Win64 SEH section to handle pushf/popf in CBC routine.
authorAndy Polyakov <appro@openssl.org>
Mon, 22 Dec 2008 14:15:11 +0000 (14:15 +0000)
committerAndy Polyakov <appro@openssl.org>
Mon, 22 Dec 2008 14:15:11 +0000 (14:15 +0000)
crypto/camellia/asm/cmll-x86_64.pl

index 199165f..4fe87e9 100644 (file)
@@ -742,12 +742,14 @@ Camellia_cbc_encrypt:
        mov     %rax,8+$ivec
        mov     %rax,$_res
 
+.Lcbc_enc_pushf:
        pushfq
        cld
        mov     $inp,%rsi
        lea     $ivec,%rdi
        .long   0x9066A4F3              # rep movsb
        popfq
+.Lcbc_enc_popf:
 
        lea     $ivec,$inp
        lea     16+$ivec,%rax
@@ -830,12 +832,14 @@ Camellia_cbc_encrypt:
        mov     @S[2],8+$ivec
        mov     @S[3],12+$ivec
 
+.Lcbc_dec_pushf:
        pushfq
        cld
        lea     $ivec,%rsi
        lea     ($out),%rdi
        .long   0x9066A4F3              # rep movsb
        popfq
+.Lcbc_dec_popf:
 
        mov     %rax,(%rdx)             # write out IV residue
        mov     %rbx,8(%rdx)
@@ -954,6 +958,25 @@ cbc_se_handler:
        cmp     %r10,%rbx               # context->Rip>=.Lcbc_abort
        jae     .Lin_cbc_prologue
 
+       # handle pushf/popf in Camellia_cbc_encrypt
+       lea     .Lcbc_enc_pushf(%rip),%r10
+       cmp     %r10,%rbx               # context->Rip<=.Lcbc_enc_pushf
+       jbe     .Lin_cbc_no_flag
+       lea     8(%rax),%rax
+       lea     .Lcbc_enc_popf(%rip),%r10
+       cmp     %r10,%rbx               # context->Rip<.Lcbc_enc_popf
+       jb      .Lin_cbc_no_flag
+       lea     -8(%rax),%rax
+       lea     .Lcbc_dec_pushf(%rip),%r10
+       cmp     %r10,%rbx               # context->Rip<=.Lcbc_dec_pushf
+       jbe     .Lin_cbc_no_flag
+       lea     8(%rax),%rax
+       lea     .Lcbc_dec_popf(%rip),%r10
+       cmp     %r10,%rbx               # context->Rip<.Lcbc_dec_popf
+       jb      .Lin_cbc_no_flag
+       lea     -8(%rax),%rax
+
+.Lin_cbc_no_flag:
        mov     48(%rax),%rax           # $_rsp
        lea     48(%rax),%rax