[PATCH] linux: posix_fadvise: restore implementation for xtensa
Mike Frysinger
vapier at gentoo.org
Thu Jan 2 19:10:14 UTC 2014
On Thursday 02 January 2014 05:16:14 Baruch Siach wrote:
> Commit ee84b8b400 (linux: posix_fadvise: use new SYSCALL_ALIGN_64BIT)
> removed posix_fadvise implementation for xtensa, since xtensa does not
> define __NR_fadvise64. Redefine __NR_fadvise64 as __NR_fadvise64_64 to
> restore posix_fadvise.
try this instead (i haven't compiled it, so might have errors :P)
-mike
diff --git a/libc/sysdeps/linux/common/posix_fadvise.c b/libc/sysdeps/linux/common/posix_fadvise.c
index e102ce7..c84c387 100644
--- a/libc/sysdeps/linux/common/posix_fadvise.c
+++ b/libc/sysdeps/linux/common/posix_fadvise.c
@@ -10,18 +10,25 @@
#include <sys/syscall.h>
-#if defined(__NR_fadvise64) || defined(__NR_arm_fadvise64_64)
+#ifdef __NR_arm_fadvise64_64
+/* We handle the 64bit alignment issue which is why the arm guys renamed their
+ * syscall in the first place. So rename it back.
+ */
+# define __NR_fadvise64_64 __NR_arm_fadvise64_64
+#endif
+
+#if defined(__NR_fadvise64) || defined(__NR_fadvise64_64)
# include <fcntl.h>
# include <endian.h>
# include <bits/wordsize.h>
-# ifdef __NR_arm_fadvise64_64
+# ifdef __NR_fadvise64_64
int posix_fadvise64(int fd, off64_t offset, off64_t len, int advice);
# endif
int posix_fadvise(int fd, off_t offset, off_t len, int advice)
{
-# ifdef __NR_arm_fadvise64_64
+# ifdef __NR_fadvise64_64
return posix_fadvise64(fd, offset, len, advice);
# else
int ret;
@@ -41,7 +48,7 @@ int posix_fadvise(int fd, off_t offset, off_t len, int advice)
return 0;
# endif
}
-# if defined __UCLIBC_HAS_LFS__ && ((!defined __NR_fadvise64_64 && !defined __NR_arm_fadvise64_64) ||
__WORDSIZE == 64)
+# if defined __UCLIBC_HAS_LFS__ && ((!defined __NR_fadvise64_64 && !defined __NR_fadvise64_64) ||
__WORDSIZE == 64)
strong_alias(posix_fadvise,posix_fadvise64)
# endif
#endif
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