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rt: Remove some unused stack from i386/morestack.S

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This commit is contained in:
Brian Anderson 2011-12-19 16:12:24 -08:00
parent d2e7336a01
commit c3569abb8c
1 changed files with 9 additions and 9 deletions
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18
src/rt/arch/i386/morestack.S
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@ -144,11 +144,11 @@ MORESTACK:
// NB: __morestack is called misaligned by 4 bytes, i.e.
// subl $4, %esp would get us to a normal alignment
subl $44,%esp
subl $28,%esp
// Save fastcc arguments
movl %ecx, 28(%esp)
movl %edx, 24(%esp)
movl %ecx, 16(%esp)
movl %edx, 12(%esp)
// FIXME (1226): main is compiled with the split-stack prologue,
// causing it to call __morestack, so we have to jump back out
@ -160,14 +160,14 @@ MORESTACK:
// The size of the stack arguments to copy to the new stack,
// ane of the the arguments to __morestack
movl 56(%esp),%eax
movl 40(%esp),%eax
movl %eax,8(%esp)
// The address of the stack arguments to the original function
leal 64(%esp),%eax
leal 48(%esp),%eax
movl %eax,4(%esp)
// The amount of stack needed for the original function,
// the other argument to __morestack
movl 52(%esp),%eax // The amount of stack needed
movl 36(%esp),%eax // The amount of stack needed
movl %eax,(%esp)
call UPCALL_NEW_STACK
@ -176,13 +176,13 @@ MORESTACK:
movl %eax, (%esp)
// Grab the __morestack return pointer
movl 48(%esp),%eax
movl 32(%esp),%eax
// Skip past the ret instruction in the parent fn
inc %eax
// Restore the fastcc arguments to the original function
movl 28(%esp), %ecx
movl 24(%esp), %edx
movl 16(%esp), %ecx
movl 12(%esp), %edx
// Switch stacks
movl (%esp),%esp