* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#endif
uint64_t m5op_addr = M5OP_ADDR;
+const char *m5_mmap_dev = "/dev/mem";
+
void
map_m5_mem()
{
int fd;
- fd = open("/dev/mem", O_RDWR | O_SYNC);
+ fd = open(m5_mmap_dev, O_RDWR | O_SYNC);
if (fd == -1) {
- perror("Can't open /dev/mem");
+ fprintf(stderr, "Can't open %s: %s\n", m5_mmap_dev, strerror(errno));
exit(1);
}
m5_mem = mmap(NULL, 0x10000, PROT_READ | PROT_WRITE, MAP_SHARED, fd,
m5op_addr);
if (!m5_mem) {
- perror("Can't mmap /dev/mem");
+ fprintf(stderr, "Can't map %s: %s\n", m5_mmap_dev, strerror(errno));
exit(1);
}
}