gcov: call mmap MAP_ANONYMOUS with fd equal to -1

libgcc/ChangeLog:

	PR gcov-profile/99385
	* libgcov.h (allocate_gcov_kvp): Call mmap with fd equal to -1.

diff --git a/libgcc/libgcov.h b/libgcc/libgcov.h
index 9c5fcfb..acdb7cd 100644 (file)
--- a/libgcc/libgcov.h
+++ b/libgcc/libgcov.h
@@ -426,7 +426,7 @@ allocate_gcov_kvp (void)
     {
       void *ptr = mmap (NULL, MMAP_CHUNK_SIZE,
                        PROT_READ | PROT_WRITE,
-                       MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
+                       MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
       if (ptr != MAP_FAILED)
        {
          __gcov_kvp_dynamic_pool = ptr;