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-rw-r--r--libc/sysdeps/linux/xtensa/bits/mman.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/xtensa/bits/mman.h b/libc/sysdeps/linux/xtensa/bits/mman.h
index d3beae6aa..fead3ac20 100644
--- a/libc/sysdeps/linux/xtensa/bits/mman.h
+++ b/libc/sysdeps/linux/xtensa/bits/mman.h
@@ -64,6 +64,8 @@
# define MAP_NORESERVE 0x0400 /* Don't check for reservations. */
# define MAP_POPULATE 0x10000 /* Populate (prefault) pagetables. */
# define MAP_NONBLOCK 0x20000 /* Do not block on IO. */
+# define MAP_UNINITIALIZE 0x4000000 /* For anonymous mmap, memory could
+ be uninitialized. */
#endif
/* Flags to `msync'. */