Chris Zankel writes:

The following patches add support for the Xtensa processor architecture
to uClibc. They are based on a recent SVN checkout (12/05/2007).

The first patch (attached to this post) adds Xtensa support to various
shared configuration and make files. The following patches then include
the Xtensa specific files and directories.

I welcome any feedback and would appreciate it if you could include the
patches into the mainline tree. I am certainly committed to maintain the port. 

Bob Wilson was kind enough to review the patches.

Some notes about the architecture: Xtensa is a configurable and
extensible processor architecture developed by Tensilica. For more
information, please visit: www.linux-xtensa.org.

1 files changed, 57 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/xtensa/bits/kernel_stat.h b/libc/sysdeps/linux/xtensa/bits/kernel_stat.h
new file mode 100644
index 000000000..6afb3a697
--- /dev/null
+++ b/libc/sysdeps/linux/xtensa/bits/kernel_stat.h
@@ -0,0 +1,57 @@
+#ifndef _BITS_STAT_STRUCT_H
+#define _BITS_STAT_STRUCT_H
+
+#ifndef _LIBC
+#error bits/kernel_stat.h is for internal uClibc use only!
+#endif
+
+/* This file provides whatever this particular arch's kernel thinks 
+ * struct kernel_stat should look like...  It turns out each arch has a 
+ * different opinion on the subject... */
+
+#define STAT_HAVE_NSEC 1
+
+struct kernel_stat {
+	unsigned long	st_dev;
+	unsigned long	st_ino;
+	unsigned int	st_mode;
+	unsigned int	st_nlink;
+	unsigned int	st_uid;
+	unsigned int	st_gid;
+	unsigned long	st_rdev;
+	long		st_size;
+	unsigned long	st_blksize;
+	unsigned long	st_blocks;
+	unsigned long	st_atime;
+	unsigned long	st_atime_nsec;
+	unsigned long	st_mtime;
+	unsigned long	st_mtime_nsec;
+	unsigned long	st_ctime;
+	unsigned long	st_ctime_nsec;
+	unsigned long	__unused4;
+	unsigned long	__unused5;
+};
+
+struct kernel_stat64 {
+	unsigned long long st_dev;	/* Device */
+	unsigned long long st_ino;	/* File serial number */
+	unsigned int  st_mode;		/* File mode. */
+	unsigned int  st_nlink;		/* Link count. */
+	unsigned int  st_uid;		/* User ID of the file's owner. */
+	unsigned int  st_gid;		/* Group ID of the file's group. */
+	unsigned long long st_rdev;	/* Device number, if device. */
+	long long st_size;		/* Size of file, in bytes. */
+	unsigned long st_blksize;	/* Optimal block size for I/O. */
+	unsigned long __unused2;
+	unsigned long long st_blocks;	/* Number 512-byte blocks allocated. */
+	unsigned long st_atime;		/* Time of last access. */
+	unsigned long st_atime_nsec;
+	unsigned long st_mtime;		/* Time of last modification. */
+	unsigned long st_mtime_nsec;
+	unsigned long st_ctime;		/* Time of last status change. */
+	unsigned long st_ctime_nsec;
+	unsigned long __unused4;
+	unsigned long __unused5;
+};
+
+#endif	/* _BITS_STAT_STRUCT_H */