x86_64-gf2m.pl: add Win64 SEH.
This commit is contained in:
Andy Polyakov
parent
2e75ed332f
commit
96abea332c
1 changed files with 112 additions and 4 deletions
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@ -153,6 +153,7 @@ $code.=<<___;
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add \$128+8,%rsp
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ret
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.Lend_mul_1x1:
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.size _mul_1x1,.-_mul_1x1
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___
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@ -167,7 +168,7 @@ $code.=<<___;
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bn_GF2m_mul_2x2:
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mov OPENSSL_ia32cap_P(%rip),%rax
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bt \$33,%rax
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jnc .Lvanilla
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jnc .Lvanilla_mul_2x2
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movq $a1,%xmm0
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movq $b1,%xmm1
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@ -188,7 +189,7 @@ $code.=<<___;
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pclmulqdq \$0,%xmm3,%xmm2 # a0·b0
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pclmulqdq \$0,%xmm5,%xmm4 # (a0+a1)·(b0+b1)
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xorps %xmm0,%xmm4
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xorps %xmm2,%xmm4
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xorps %xmm2,%xmm4 # (a0+a1)·(b0+b1)-a0·b0-a1·b1
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movdqa %xmm4,%xmm5
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pslldq \$8,%xmm4
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psrldq \$8,%xmm5
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@ -199,7 +200,7 @@ $code.=<<___;
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ret
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.align 16
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.Lvanilla:
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.Lvanilla_mul_2x2:
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lea -8*17(%rsp),%rsp
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___
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$code.=<<___ if ($win64);
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@ -213,7 +214,7 @@ $code.=<<___;
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mov %r12,8*12(%rsp)
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mov %rbp,8*13(%rsp)
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mov %rbx,8*14(%rsp)
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.Lbody:
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.Lbody_mul_2x2:
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mov $rp,32(%rsp) # save the arguments
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mov $a1,40(%rsp)
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mov $a0,48(%rsp)
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@ -272,10 +273,117 @@ ___
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$code.=<<___;
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lea 8*17(%rsp),%rsp
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ret
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.Lend_mul_2x2:
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.size bn_GF2m_mul_2x2,.-bn_GF2m_mul_2x2
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.asciz "GF(2^m) Multiplication for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
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.align 16
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___
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# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
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# CONTEXT *context,DISPATCHER_CONTEXT *disp)
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if ($win64) {
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$rec="%rcx";
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$frame="%rdx";
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$context="%r8";
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$disp="%r9";
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$code.=<<___;
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.extern __imp_RtlVirtualUnwind
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.type se_handler,\@abi-omnipotent
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.align 16
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se_handler:
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push %rsi
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push %rdi
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push %rbx
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push %rbp
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push %r12
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push %r13
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push %r14
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push %r15
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pushfq
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sub \$64,%rsp
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mov 152($context),%rax # pull context->Rsp
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mov 248($context),%rbx # pull context->Rip
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lea .Lbody_mul_2x2(%rip),%r10
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cmp %r10,%rbx # context->Rip<"prologue" label
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jb .Lin_prologue
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mov 8*10(%rax),%r14 # mimic epilogue
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mov 8*11(%rax),%r13
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mov 8*12(%rax),%r12
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mov 8*13(%rax),%rbp
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mov 8*14(%rax),%rbx
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mov 8*15(%rax),%rdi
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mov 8*16(%rax),%rsi
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mov %rbx,144($context) # restore context->Rbx
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mov %rbp,160($context) # restore context->Rbp
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mov %rsi,168($context) # restore context->Rsi
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mov %rdi,176($context) # restore context->Rdi
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mov %r12,216($context) # restore context->R12
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mov %r13,224($context) # restore context->R13
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mov %r14,232($context) # restore context->R14
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.Lin_prologue:
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lea 8*17(%rax),%rax
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mov %rax,152($context) # restore context->Rsp
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mov 40($disp),%rdi # disp->ContextRecord
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mov $context,%rsi # context
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mov \$154,%ecx # sizeof(CONTEXT)
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.long 0xa548f3fc # cld; rep movsq
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mov $disp,%rsi
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xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
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mov 8(%rsi),%rdx # arg2, disp->ImageBase
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mov 0(%rsi),%r8 # arg3, disp->ControlPc
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mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
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mov 40(%rsi),%r10 # disp->ContextRecord
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lea 56(%rsi),%r11 # &disp->HandlerData
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lea 24(%rsi),%r12 # &disp->EstablisherFrame
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mov %r10,32(%rsp) # arg5
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mov %r11,40(%rsp) # arg6
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mov %r12,48(%rsp) # arg7
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mov %rcx,56(%rsp) # arg8, (NULL)
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call *__imp_RtlVirtualUnwind(%rip)
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mov \$1,%eax # ExceptionContinueSearch
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add \$64,%rsp
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popfq
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pop %r15
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pop %r14
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pop %r13
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pop %r12
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pop %rbp
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pop %rbx
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pop %rdi
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pop %rsi
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ret
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.size se_handler,.-se_handler
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.section .pdata
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.align 4
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.rva _mul_1x1
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.rva .Lend_mul_1x1
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.rva .LSEH_info_1x1
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.rva .Lvanilla_mul_2x2
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.rva .Lend_mul_2x2
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.rva .LSEH_info_2x2
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.section .xdata
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.align 8
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.LSEH_info_1x1:
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.byte 0x01,0x07,0x02,0x00
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.byte 0x07,0x01,0x11,0x00 # sub rsp,128+8
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.LSEH_info_2x2:
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.byte 9,0,0,0
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.rva se_handler
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___
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}
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$code =~ s/\`([^\`]*)\`/eval($1)/gem;
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print $code;
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close STDOUT;
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