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Fix by Joren for setjmp to not clobber %ebx.

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This commit is contained in:
Ben Gras 2006-08-02 12:03:02 +00:00
parent bc8b79da53
commit 5d8c07b3f2
1 changed files with 4 additions and 1 deletions
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5
lib/gnu/rts/_setjmp.gs
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@ -11,7 +11,6 @@ ___setjmp:
movl %ebx, 8(%eax) # save program counter movl %ebx, 8(%eax) # save program counter
movl %esp, 12(%eax) # save stack pointer movl %esp, 12(%eax) # save stack pointer
movl %ebp, 16(%eax) # save frame pointer movl %ebp, 16(%eax) # save frame pointer
movl 20(%eax), %ebx # restore ebx
movl %ecx, 24(%eax) movl %ecx, 24(%eax)
movl %edx, 28(%eax) movl %edx, 28(%eax)
movl %esi, 32(%eax) movl %esi, 32(%eax)
@ -19,6 +18,9 @@ ___setjmp:
movl 8(%esp), %ebx # save mask? movl 8(%esp), %ebx # save mask?
movl %ebx, 0(%eax) # save whether to restore mask movl %ebx, 0(%eax) # save whether to restore mask
pushl 20(%eax) # save ebx
testl %ebx, %ebx testl %ebx, %ebx
jz 1f jz 1f
leal 4(%eax), %ebx # pointer to sigset_t leal 4(%eax), %ebx # pointer to sigset_t
@ -26,6 +28,7 @@ ___setjmp:
call ___newsigset # save mask call ___newsigset # save mask
addl $4, %esp addl $4, %esp
1: 1:
popl %ebx
movl $0, %eax movl $0, %eax
ret ret