From e07db64b78c3905baf3aaeb582899f78ab306781 Mon Sep 17 00:00:00 2001
From: Markos Chandras <markos.chandras@imgtec.com>
Date: Wed, 10 Oct 2012 15:50:28 +0100
Subject: readlink: Use readlinkat if arch does not have the readlink syscall

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
---
 libc/sysdeps/linux/common/readlink.c   | 8 ++++++++
 libc/sysdeps/linux/common/readlinkat.c | 1 +
 2 files changed, 9 insertions(+)

(limited to 'libc')

diff --git a/libc/sysdeps/linux/common/readlink.c b/libc/sysdeps/linux/common/readlink.c
index ef9e83539..f64aeb947 100644
--- a/libc/sysdeps/linux/common/readlink.c
+++ b/libc/sysdeps/linux/common/readlink.c
@@ -10,5 +10,13 @@
 #include <sys/syscall.h>
 #include <unistd.h>
 
+#if defined(__NR_readlinkat) && !defined(__NR_readlink)
+# include <fcntl.h>
+ssize_t readlink (const char *path, char *buf, size_t len)
+{
+	return readlinkat(AT_FDCWD, path, buf, len);
+}
+#else
 _syscall3(ssize_t, readlink, const char *, path, char *, buf, size_t, bufsiz)
+#endif
 libc_hidden_def(readlink)
diff --git a/libc/sysdeps/linux/common/readlinkat.c b/libc/sysdeps/linux/common/readlinkat.c
index d0a98e115..995b9e2c1 100644
--- a/libc/sysdeps/linux/common/readlinkat.c
+++ b/libc/sysdeps/linux/common/readlinkat.c
@@ -11,6 +11,7 @@
 
 #ifdef __NR_readlinkat
 _syscall4(ssize_t, readlinkat, int, fd, const char *, path, char *, buf, size_t, len)
+libc_hidden_def(readlinkat)
 #else
 /* should add emulation with readlink() and /proc/self/fd/ ... */
 #endif
-- 
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