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Diffstat (limited to 'libc/ports/sysdeps/unix/sysv/linux/alpha/bits/mman.h')
-rw-r--r--libc/ports/sysdeps/unix/sysv/linux/alpha/bits/mman.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/libc/ports/sysdeps/unix/sysv/linux/alpha/bits/mman.h b/libc/ports/sysdeps/unix/sysv/linux/alpha/bits/mman.h
index 2238c2c72..c51b05d37 100644
--- a/libc/ports/sysdeps/unix/sysv/linux/alpha/bits/mman.h
+++ b/libc/ports/sysdeps/unix/sysv/linux/alpha/bits/mman.h
@@ -51,6 +51,9 @@
# define MAP_FILE 0
# define MAP_ANONYMOUS 0x10 /* Don't use a file. */
# define MAP_ANON MAP_ANONYMOUS
+/* When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size. */
+# define MAP_HUGE_SHIFT 26
+# define MAP_HUGE_MASK 0x3f
#endif
/* Not used by Linux, but here to make sure we don't clash with