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/* { dg-do run } */
/* { dg-additional-options "-foffload-memory=pinned" } */
/* { dg-xfail-run-if "Pinning not implemented on this host" { ! *-*-linux-gnu } } */
/* Test that pinned memory works. */
#include <stdio.h>
#include <stdlib.h>
#ifdef __linux__
#include <sys/types.h>
#include <unistd.h>
#include <sys/mman.h>
int
get_pinned_mem ()
{
int pid = getpid ();
char buf[100];
sprintf (buf, "/proc/%d/status", pid);
FILE *proc = fopen (buf, "r");
if (!proc)
abort ();
while (fgets (buf, 100, proc))
{
int val;
if (sscanf (buf, "VmLck: %d", &val))
{
fclose (proc);
return val;
}
}
abort ();
}
#else
int
get_pinned_mem ()
{
return 0;
}
#define mlockall(...) 0
#endif
#include <omp.h>
int
main ()
{
// Sanity check
if (get_pinned_mem () == 0)
{
/* -foffload-memory=pinned has failed, but maybe that's because
isufficient pinned memory was available. */
if (mlockall (MCL_CURRENT | MCL_FUTURE) == 0)
abort ();
}
return 0;
}
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