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In winx32_wrap.S, preserve return values in the fastcall and regparm

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wrappers by pushing them onto the stack rather than keeping them in %esi
and %edi.
This commit is contained in:
Bill Paul 2005-04-11 17:04:49 +00:00
parent dea6ffd9f6
commit 0a5c534cd2
1 changed files with 12 additions and 10 deletions
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22
sys/compat/ndis/winx32_wrap.S
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@ -187,10 +187,12 @@ ENTRY(x86_fastcall_wrap)
x86_fastcall_wrap_call:
mov $0,%eax
call *%eax # branch to fastcall routine
push %eax # preserve return val
movl $ctxsw_utow, %eax
call *%eax # thunk
pop %eax # restore return val
add $12,%esp # clean the stack
x86_fastcall_wrap_arg:
ret $0xFF
@ -212,11 +214,11 @@ ENTRY(x86_fastcall_call)
mov 12(%esp),%ecx
mov 16(%esp),%edx
call *8(%esp) # branch to fastcall routine
mov %eax,%esi # preserve return val
push %eax # preserve return val
call ctxsw_wtou # unthunk
mov %esi,%eax # restore return val
pop %eax # restore return val
add $4,%esp # clean the stack
ret
@ -242,14 +244,14 @@ ENTRY(x86_regparm_wrap)
x86_regparm_wrap_call:
movl $0,%eax
call *%eax # jump to routine
mov %eax,%esi # preserve return val
mov %edx,%edi # preserve return val
push %eax # preserve return val
push %edx # preserve return val
movl $ctxsw_utow, %eax
call *%eax # thunk
mov %esi,%eax # restore return val
mov %edi,%edx # restore return val
pop %edx # restore return val
pop %eax # restore return val
add $12,%esp # restore stack
ret
x86_regparm_wrap_end:
@ -268,13 +270,13 @@ ENTRY(x86_regparm_call)
mov 12(%esp),%edx
mov 16(%esp),%ecx
call *4(%esp) # branch to fastcall routine
mov %eax,%esi # preserve return val
mov %edx,%edi # preserve return val
push %eax # preserve return val
push %edx # preserve return val
call ctxsw_wtou # unthunk
mov %esi,%eax # restore return val
mov %edi,%edx # restore return val
pop %edx # restore return val
pop %eax # restore return val
ret
/*