Update bits/mman.h constants and tst-mman-consts.py for Linux 5.3
Commit Message
The Linux 5.3 uapi headers have some rearrangement relating to MAP_*
constants, which includes the effect of adding definitions of MAP_SYNC
on powerpc and sparc. This patch updates the corresponding glibc
bits/mman.h headers accordingly, and updates the Linux kernel version
number in tst-mman-consts.py to reflect that these constants are now
current with that kernel version.
Tested with build-many-glibcs.py.
2019-09-24 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/powerpc/bits/mman.h [__USE_MISC]
(MAP_SYNC): New macro.
* sysdeps/unix/sysv/linux/sparc/bits/mman.h [__USE_MISC]
(MAP_SYNC): Likewise.
* sysdeps/unix/sysv/linux/tst-mman-consts.py (main): Update Linux
kernel version number to 5.3.
Comments
Ping. This patch
<https://sourceware.org/ml/libc-alpha/2019-09/msg00384.html> is pending
review.
On Sep 24 2019, Joseph Myers <joseph@codesourcery.com> wrote:
> * sysdeps/unix/sysv/linux/powerpc/bits/mman.h [__USE_MISC]
> (MAP_SYNC): New macro.
> * sysdeps/unix/sysv/linux/sparc/bits/mman.h [__USE_MISC]
> (MAP_SYNC): Likewise.
> * sysdeps/unix/sysv/linux/tst-mman-consts.py (main): Update Linux
> kernel version number to 5.3.
Ok.
Andreas.
@@ -36,6 +36,8 @@
# define MAP_NONBLOCK 0x10000 /* Do not block on IO. */
# define MAP_STACK 0x20000 /* Allocation is for a stack. */
# define MAP_HUGETLB 0x40000 /* Create huge page mapping. */
+# define MAP_SYNC 0x80000 /* Perform synchronous page
+ faults for the mapping. */
# define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED but do not unmap
underlying mapping. */
#endif
@@ -36,6 +36,8 @@
# define MAP_NONBLOCK 0x10000 /* Do not block on IO. */
# define MAP_STACK 0x20000 /* Allocation is for a stack. */
# define MAP_HUGETLB 0x40000 /* Create huge page mapping. */
+# define MAP_SYNC 0x80000 /* Perform synchronous page
+ faults for the mapping. */
# define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED but do not unmap
underlying mapping. */
#endif
@@ -41,7 +41,7 @@ def main():
help='C compiler (including options) to use')
args = parser.parse_args()
linux_version_headers = linux_kernel_version(args.cc)
- linux_version_glibc = (5, 2)
+ linux_version_glibc = (5, 3)
sys.exit(glibcextract.compare_macro_consts(
'#define _GNU_SOURCE 1\n'
'#include <sys/mman.h>\n',