svn commit: r271723 - head/lib/libc/gen

[Bryan Drewery]

Author: bdrewery
Date: Wed Sep 17 20:26:27 2014
New Revision: 271723
URL: http://svnweb.freebsd.org/changeset/base/271723

Log:
  Explicitly set MAP_PRIVATE to avoid [EINVAL] after r271635.
  
  X-MFC-With:	r271635
  Reviewed by:	jhb

Modified:
  head/lib/libc/gen/nlist.c

Modified: head/lib/libc/gen/nlist.c
==============================================================================
--- head/lib/libc/gen/nlist.c	Wed Sep 17 19:45:34 2014	(r271722)
+++ head/lib/libc/gen/nlist.c	Wed Sep 17 20:26:27 2014	(r271723)
@@ -268,7 +268,7 @@ __elf_fdnlist(fd, list)
 	}
 
 	/* mmap section header table */
-	base = mmap(NULL, (size_t)shdr_size, PROT_READ, 0, fd,
+	base = mmap(NULL, (size_t)shdr_size, PROT_READ, MAP_PRIVATE, fd,
 	    (off_t)ehdr.e_shoff);
 	if (base == MAP_FAILED)
 		return (-1);
@@ -301,7 +301,7 @@ __elf_fdnlist(fd, list)
 	 * making the memory allocation permanent as with malloc/free
 	 * (i.e., munmap will return it to the system).
 	 */
-	base = mmap(NULL, (size_t)symstrsize, PROT_READ, 0, fd,
+	base = mmap(NULL, (size_t)symstrsize, PROT_READ, MAP_PRIVATE, fd,
 	    (off_t)symstroff);
 	if (base == MAP_FAILED)
 		goto done;