117 lines
2.3 KiB
C
117 lines
2.3 KiB
C
/* 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 ();
|
|
}
|