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authorMarkos Chandras <markos.chandras@imgtec.com>2012-10-11 11:10:50 +0100
committerBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2013-02-20 13:45:12 +0100
commitf7bead5adac96d9cb72aa2fb3c11ca5ab8f5f6b9 (patch)
tree1b8ddadafa93a6546afa52d052f6fe467fc6b19c /libc/sysdeps/linux
parentbad1b218da611bfe521a12130077e70a9c484b7b (diff)
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>
Diffstat (limited to 'libc/sysdeps/linux')
-rw-r--r--libc/sysdeps/linux/common/truncate.c20
-rw-r--r--libc/sysdeps/linux/common/truncate64.c4
2 files changed, 23 insertions, 1 deletions
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)