Optimize ____longjmp_chk for x86-64 a bit.
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@ -66,14 +66,12 @@ ENTRY(____longjmp_chk)
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cmpq %r8, %rsp
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jbe .Lok
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subq $32, %rsp
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cfi_adjust_cfa_offset(32)
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movq %r10, 24(%rsp)
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subq $24, %rsp
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cfi_adjust_cfa_offset(24)
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xorl %edi, %edi
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movq %rsp, %rsi
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movl $__NR_sigaltstack, %eax
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syscall
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movq 24(%rsp), %r10
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testl %eax, %eax
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movl $0, %eax
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jne .Lok
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@ -127,7 +125,7 @@ ENTRY(____longjmp_chk)
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.Lfail: xchgq %r8, %rsp
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/* We want the stack trace to show that of the caller. */
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cfi_def_cfa(%rsp, 40)
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cfi_def_cfa(%rsp, 32)
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cfi_restore(%rsp)
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cfi_register(%rbp, %r9)
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cfi_restore(%rip)
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