From f7bead5adac96d9cb72aa2fb3c11ca5ab8f5f6b9 Mon Sep 17 00:00:00 2001
From: Markos Chandras <markos.chandras@imgtec.com>
Date: Thu, 11 Oct 2012 11:10:50 +0100
Subject: truncate: Use truncate64 if arch does not have the truncate 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/truncate.c   | 20 ++++++++++++++++++++
 libc/sysdeps/linux/common/truncate64.c |  4 +++-
 2 files changed, 23 insertions(+), 1 deletion(-)

(limited to 'libc')

diff --git a/libc/sysdeps/linux/common/truncate.c b/libc/sysdeps/linux/common/truncate.c
index fe7bda9e2..0c533df94 100644
--- a/libc/sysdeps/linux/common/truncate.c
+++ b/libc/sysdeps/linux/common/truncate.c
@@ -10,5 +10,25 @@
 #include <sys/syscall.h>
 #include <unistd.h>
 
+#if defined(__NR_truncate64) && !defined(__NR_truncate)
+# include <endian.h>
+# include <stdint.h>
+
+int truncate(const char *path, __off_t length)
+{
+# if defined __UCLIBC_HAS_LFS
+	return truncate64(path, length);
+# elif __WORDSIZE == 32
+#  if defined(__UCLIBC_TRUNCATE64_HAS_4_ARGS__)
+	return INLINE_SYSCALL(truncate64, 4, path, 0, OFF_HI_LO(length));
+#  else
+	return INLINE_SYSCALL(truncate64, 3, path, OFF_HI_LO(length));
+#  endif
+# endif
+}
+libc_hidden_def(truncate);
+
+#else
 _syscall2(int, truncate, const char *, path, __off_t, length)
 libc_hidden_def(truncate)
+#endif
diff --git a/libc/sysdeps/linux/common/truncate64.c b/libc/sysdeps/linux/common/truncate64.c
index 6dfdc4c07..1f5f862e5 100644
--- a/libc/sysdeps/linux/common/truncate64.c
+++ b/libc/sysdeps/linux/common/truncate64.c
@@ -52,4 +52,6 @@ int truncate64(const char * path, __off64_t length)
 
 	return -1;
 }
-#endif
+
+#endif /* __NR_truncate64 */
+libc_hidden_def(truncate64)
-- 
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