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;
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