67 lines
3.1 KiB
Diff
67 lines
3.1 KiB
Diff
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From 2ca4e8dcbd35e5c6da41a195550d741ccb2f7978 Mon Sep 17 00:00:00 2001
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From: Waldemar Brodkorb <wbx@uclibc-ng.org>
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Date: Sat, 26 Nov 2016 19:47:41 +0100
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Subject: [PATCH] do not define madvise related macros for noMMU targets
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Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
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---
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libc/sysdeps/linux/common/bits/mman-common.h | 41 +++++++++++++++-------------
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1 file changed, 22 insertions(+), 19 deletions(-)
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diff --git a/libc/sysdeps/linux/common/bits/mman-common.h b/libc/sysdeps/linux/common/bits/mman-common.h
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index 6cde5da..5b20da4 100644
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--- a/libc/sysdeps/linux/common/bits/mman-common.h
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+++ b/libc/sysdeps/linux/common/bits/mman-common.h
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@@ -83,26 +83,29 @@
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# define MREMAP_FIXED 2
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#endif
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+/* only define for MMU targets, no-MMU does not support madvise. */
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+#ifdef __ARCH_USE_MMU__
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/* Advice to `madvise'. */
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-#ifdef __USE_BSD
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-# define MADV_NORMAL 0 /* No further special treatment. */
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-# define MADV_RANDOM 1 /* Expect random page references. */
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-# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
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-# define MADV_WILLNEED 3 /* Will need these pages. */
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-# define MADV_DONTNEED 4 /* Don't need these pages. */
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-# define MADV_REMOVE 9 /* Remove these pages and resources. */
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-# define MADV_DONTFORK 10 /* Do not inherit across fork. */
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-# define MADV_DOFORK 11 /* Do inherit across fork. */
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-# define MADV_MERGEABLE 12 /* KSM may merge identical pages. */
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-# define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages. */
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-# define MADV_HWPOISON 100 /* Poison a page for testing. */
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-#endif
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+# ifdef __USE_BSD
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+# define MADV_NORMAL 0 /* No further special treatment. */
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+# define MADV_RANDOM 1 /* Expect random page references. */
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+# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
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+# define MADV_WILLNEED 3 /* Will need these pages. */
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+# define MADV_DONTNEED 4 /* Don't need these pages. */
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+# define MADV_REMOVE 9 /* Remove these pages and resources. */
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+# define MADV_DONTFORK 10 /* Do not inherit across fork. */
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+# define MADV_DOFORK 11 /* Do inherit across fork. */
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+# define MADV_MERGEABLE 12 /* KSM may merge identical pages. */
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+# define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages. */
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+# define MADV_HWPOISON 100 /* Poison a page for testing. */
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+# endif
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/* The POSIX people had to invent similar names for the same things. */
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-#ifdef __USE_XOPEN2K
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-# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
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-# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
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-# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
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-# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
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-# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
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+# ifdef __USE_XOPEN2K
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+# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
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+# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
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+# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
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+# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
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+# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
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+# endif
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#endif
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--
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2.1.4
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