gdb/testsuite: check mmap ret val against MAP_FAILED

[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.base / coremaker.c

diff --git a/gdb/testsuite/gdb.base/coremaker.c b/gdb/testsuite/gdb.base/coremaker.c
index 55330fd3e8a4fa56bfc024de1e75e3423e1370cf..3cc97e1e8e5931dfdfd49cf718a780b4693dfafd 100644 (file)
--- a/gdb/testsuite/gdb.base/coremaker.c
+++ b/gdb/testsuite/gdb.base/coremaker.c
@@ -77,7 +77,7 @@ mmapdata ()
   /* Now map the file into our address space as buf2 */
 
   buf2 = (char *) mmap (0, MAPSIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
-  if (buf2 == (char *) -1)
+  if (buf2 == (char *) MAP_FAILED)
     {
       perror ("mmap failed");
       return;