3 files changed, 56 insertions, 1 deletions
diff --git a/libc/include/sys/atomics.h b/libc/include/sys/atomics.h
new file mode 100644
index 0000000..38ab366
--- /dev/null
+++ b/libc/include/sys/atomics.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _SYS_ATOMICS_H_
+#define _SYS_ATOMICS_H_
+
+/*
+ * These got proper out of line definitions in L. Putting the inline definitions
+ * back for old targets brings us closer to being able to use one set of headers
+ * for all API levels.
+ *
+ * The other inlines we put back went in to their appropriate headers, but the
+ * sys/atomics.h header was removed, so we'll just add these somewhere we can be
+ * sure they will be included.
+ */
+#if __ANDROID_API__ < 21
+#include <android/legacy_sys_atomics_inlines.h>
+#endif
+
+#endif /* _SYS_ATOMICS_H_ */
diff --git a/libc/include/sys/cdefs.h b/libc/include/sys/cdefs.h
index 21d59fa..48763d7 100644
--- a/libc/include/sys/cdefs.h
+++ b/libc/include/sys/cdefs.h
@@ -556,4 +556,10 @@
 /* Used to rename functions so that the compiler emits a call to 'x' rather than the function this was applied to. */
 #define __RENAME(x) __asm__(#x)
 
+#if __ANDROID_API__ >= 21
+#define _BIONIC_NOT_BEFORE_21(x) x
+#else
+#define _BIONIC_NOT_BEFORE_21(x)
+#endif /* __ANDROID_API__ >= 21 */
+
 #endif /* !_SYS_CDEFS_H_ */
diff --git a/libc/include/sys/stat.h b/libc/include/sys/stat.h
index eb9bf2e..c22516f 100644
--- a/libc/include/sys/stat.h
+++ b/libc/include/sys/stat.h
@@ -171,7 +171,7 @@ mode_t umask(mode_t mode) {
 }
 #endif /* defined(__BIONIC_FORTIFY) */
 
-extern int mkfifo(const char*, mode_t);
+_BIONIC_NOT_BEFORE_21(extern int mkfifo(const char*, mode_t);)
 extern int mkfifoat(int, const char*, mode_t);
 
 extern int fchmodat(int, const char*, mode_t, int);
@@ -183,6 +183,10 @@ extern int mknodat(int, const char*, mode_t, dev_t);
 extern int utimensat(int fd, const char *path, const struct timespec times[2], int flags);
 extern int futimens(int fd, const struct timespec times[2]);
 
+#if __ANDROID_API__ < 21
+#include <android/legacy_sys_stat_inlines.h>
+#endif
+
 __END_DECLS
 
 #endif /* _SYS_STAT_H_ */