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rt: Remove unused saves from __morestack

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This commit is contained in:
Brian Anderson 2011-12-19 15:59:15 -08:00
parent 50dc80f617
commit d2e7336a01
2 changed files with 1 additions and 10 deletions
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6
src/rt/arch/i386/morestack.S
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@ -156,12 +156,6 @@ MORESTACK:
testl %eax,%eax
jz .L$bail
// Save the the correct %esp value for our grandparent frame,
// for the unwinder
// FIXME: This isn't used
leal 20(%ebp), %eax
movl %eax, -4(%ebp)
// The arguments to upcall_new_stack
// The size of the stack arguments to copy to the new stack,

5
src/rt/arch/x86_64/morestack.S
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@ -49,10 +49,7 @@ MORESTACK:
// Calculate the CFA as on offset from %ebp
.cfi_def_cfa_register %rbp
// Save the grandparent stack pointer for the unwinder
// FIXME: This isn't used
leaq 24(%rbp), %rax
pushq %rax
pushq $0 // Alignment
// FIXME: libgcc also saves rax. not sure if we need to