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/* Verify that unwinding can find SPE registers in signal frames. */
/* Origin: Joseph Myers <joseph@codesourcery.com> */
/* { dg-do run { target { powerpc*-*-linux* && powerpc_spe } } } */
/* { dg-options "-fexceptions -fnon-call-exceptions -O2" } */
#include <unwind.h>
#include <stdlib.h>
#include <signal.h>
#include <string.h>
int count;
char *null;
int found_reg;
typedef int v2si __attribute__((__vector_size__(8)));
v2si v1 = { 123, 234 };
v2si v2 = { 345, 456 };
static _Unwind_Reason_Code
force_unwind_stop (int version, _Unwind_Action actions,
_Unwind_Exception_Class exc_class,
struct _Unwind_Exception *exc_obj,
struct _Unwind_Context *context,
void *stop_parameter)
{
unsigned int reg;
if (actions & _UA_END_OF_STACK)
abort ();
if (_Unwind_GetGR (context, 1215) == 123)
found_reg = 1;
return _URC_NO_REASON;
}
static void force_unwind ()
{
struct _Unwind_Exception *exc = malloc (sizeof (*exc));
memset (&exc->exception_class, 0, sizeof (exc->exception_class));
exc->exception_cleanup = 0;
#ifndef __USING_SJLJ_EXCEPTIONS__
_Unwind_ForcedUnwind (exc, force_unwind_stop, 0);
#else
_Unwind_SjLj_ForcedUnwind (exc, force_unwind_stop, 0);
#endif
abort ();
}
static void counter (void *p __attribute__((unused)))
{
++count;
}
static void handler (void *p __attribute__((unused)))
{
if (count != 2)
abort ();
if (!found_reg)
abort ();
exit (0);
}
static int __attribute__((noinline)) fn5 ()
{
char dummy __attribute__((cleanup (counter)));
force_unwind ();
return 0;
}
static void fn4 (int sig)
{
char dummy __attribute__((cleanup (counter)));
/* Clobber high part without compiler's knowledge so the only saved
copy is from the signal frame. */
asm volatile ("evmergelo 15,15,15");
fn5 ();
null = NULL;
}
static void fn3 ()
{
abort ();
}
static int __attribute__((noinline)) fn2 ()
{
register v2si r15 asm("r15");
r15 = v1;
asm volatile ("" : "+r" (r15));
*null = 0;
fn3 ();
return 0;
}
static int __attribute__((noinline)) fn1 ()
{
signal (SIGSEGV, fn4);
signal (SIGBUS, fn4);
fn2 ();
return 0;
}
static int __attribute__((noinline)) fn0 ()
{
char dummy __attribute__((cleanup (handler)));
fn1 ();
null = 0;
return 0;
}
int main()
{
fn0 ();
abort ();
}
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