In order for our emulation of MAP_FIXED_NOREPLACE to succeed within
linux-user target_mmap, we require a non-zero value. This does not
require host kernel support, merely the bit being defined.
MAP_FIXED_NOREPLACE was added with glibc 2.28. From repology.org:
Fedora 36: 2.35
CentOS 8 (RHEL-8): 2.28
Debian 11: 2.31
OpenSUSE Leap 15.4: 2.31
Ubuntu LTS 20.04: 2.31
Reported-by: Akihiko Odaki <akihiko.od...@daynix.com>
Reviewed-by: Akihiko Odaki <akihiko.od...@daynix.com>
Reviewed-by: Alex Bennée <alex.ben...@linaro.org>
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
Message-Id: <20230808164418.69989-1-richard.hender...@linaro.org>
---
include/qemu/osdep.h | 3 ---
1 file changed, 3 deletions(-)
diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h
index cc61b00ba9..21ef8f1699 100644
--- a/include/qemu/osdep.h
+++ b/include/qemu/osdep.h
@@ -289,9 +289,6 @@ void QEMU_ERROR("code path is reachable")
#ifndef MAP_ANONYMOUS
#define MAP_ANONYMOUS MAP_ANON
#endif
-#ifndef MAP_FIXED_NOREPLACE
-#define MAP_FIXED_NOREPLACE 0
-#endif
#ifndef MAP_NORESERVE
#define MAP_NORESERVE 0
#endif
--
2.34.1
