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ntdll: Handle alignment fault in signal handler on i386. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2019-09-12 19:34:04 +02:00
parent 5e2b0585cd
commit 846de4aef8
1 changed files with 6 additions and 9 deletions
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15
dlls/ntdll/signal_i386.c
View File

@ -1956,15 +1956,6 @@ static void WINAPI raise_segv_exception( EXCEPTION_RECORD *rec, CONTEXT *context
}
}
break;
case EXCEPTION_DATATYPE_MISALIGNMENT:
/* FIXME: pass through exception handler first? */
if (context->EFlags & 0x00040000)
{
/* Disable AC flag, return */
context->EFlags &= ~0x00040000;
goto done;
}
break;
case EXCEPTION_BREAKPOINT:
if (!is_wow64)
{
@ -2078,6 +2069,12 @@ static void segv_handler( int signal, siginfo_t *siginfo, void *sigcontext )
stack->rec.ExceptionInformation[1] = (ULONG_PTR)siginfo->si_addr;
break;
case TRAP_x86_ALIGNFLT: /* Alignment check exception */
/* FIXME: pass through exception handler first? */
if (stack->context.EFlags & 0x00040000)
{
EFL_sig(context) &= ~0x00040000; /* disable AC flag */
return;
}
stack->rec.ExceptionCode = EXCEPTION_DATATYPE_MISALIGNMENT;
break;
default: