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ntdll: Save FPU context for all exceptions.

This commit is contained in:
Alexandre Julliard 2006-04-03 21:39:33 +02:00
parent c77711a6c9
commit a1f0f39174
1 changed files with 26 additions and 22 deletions
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48
dlls/ntdll/signal_i386.c
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@ -703,27 +703,6 @@ inline static void *init_handler( const SIGCONTEXT *sigcontext, WORD *fs, WORD *
}
/***********************************************************************
* save_fpu
*
* Set the FPU context from a sigcontext.
*/
inline static void save_fpu( CONTEXT *context, const SIGCONTEXT *sigcontext )
{
context->ContextFlags |= CONTEXT86_FLOATING_POINT;
#ifdef FPU_sig
if (FPU_sig(sigcontext))
{
context->FloatSave = *FPU_sig(sigcontext);
return;
}
#endif /* FPU_sig */
#ifdef __GNUC__
__asm__ __volatile__( "fnsave %0; fwait" : "=m" (context->FloatSave) );
#endif /* __GNUC__ */
}
/***********************************************************************
* restore_fpu
*
@ -773,6 +752,21 @@ inline static void save_context( CONTEXT *context, const SIGCONTEXT *sigcontext,
context->Dr3 = regs->dr3;
context->Dr6 = regs->dr6;
context->Dr7 = regs->dr7;
#ifdef FPU_sig
if (FPU_sig(sigcontext))
{
context->ContextFlags |= CONTEXT_FLOATING_POINT;
context->FloatSave = *FPU_sig(sigcontext);
}
else
#endif
{
#ifdef __GNUC__
context->ContextFlags |= CONTEXT_FLOATING_POINT;
__asm__ __volatile__( "fnsave %0; fwait" : "=m" (context->FloatSave) );
#endif
}
}
@ -815,6 +809,17 @@ inline static void restore_context( const CONTEXT *context, SIGCONTEXT *sigconte
#else
wine_set_fs( context->SegFs );
#endif
#ifdef FPU_sig
if (FPU_sig(sigcontext))
{
*FPU_sig(sigcontext) = context->FloatSave;
}
else
#endif
{
restore_fpu( context );
}
}
@ -1278,7 +1283,6 @@ static HANDLER_DEF(fpe_handler)
CONTEXT *context;
context = get_exception_context( rec );
save_fpu( context, HANDLER_CONTEXT );
switch(get_trap_code(HANDLER_CONTEXT))
{