fi
##########################################
+# check if we have open_by_handle_at
+
+open_by_hande_at=no
+cat > $TMPC << EOF
+#include <fcntl.h>
+int main(void) { struct file_handle *fh; open_by_handle_at(0, fh, 0); }
+EOF
+if compile_prog "" "" ; then
+ open_by_handle_at=yes
+fi
+
+##########################################
# End of CC checks
# After here, no more $cc or $ld runs
echo "CONFIG_UCONTEXT_COROUTINE=y" >> $config_host_mak
fi
+if test "$open_by_handle_at" = "yes" ; then
+ echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
+fi
+
# USB host support
case "$usb" in
linux)
int handle_bytes;
};
-#if __GLIBC__ <= 2 && __GLIBC_MINOR__ < 14
+#ifdef CONFIG_OPEN_BY_HANDLE
+static inline int name_to_handle(int dirfd, const char *name,
+ struct file_handle *fh, int *mnt_id, int flags)
+{
+ return name_to_handle_at(dirfd, name, fh, mnt_id, flags);
+}
+
+static inline int open_by_handle(int mountfd, const char *fh, int flags)
+{
+ return open_by_handle_at(mountfd, (struct file_handle *)fh, flags);
+}
+#else
+
struct file_handle {
- unsigned int handle_bytes;
- int handle_type;
- unsigned char handle[0];
+ unsigned int handle_bytes;
+ int handle_type;
+ unsigned char handle[0];
};
-#endif
#ifndef AT_EMPTY_PATH
#define AT_EMPTY_PATH 0x1000 /* Allow empty relative pathname */
#define O_PATH 010000000
#endif
-#ifndef __NR_name_to_handle_at
-#if defined(__i386__)
-#define __NR_name_to_handle_at 341
-#define __NR_open_by_handle_at 342
-#elif defined(__x86_64__)
-#define __NR_name_to_handle_at 303
-#define __NR_open_by_handle_at 304
-#endif
-#endif
-
-#ifdef __NR_name_to_handle_at
-static inline int name_to_handle(int dirfd, const char *name,
- struct file_handle *fh, int *mnt_id, int flags)
-{
- return syscall(__NR_name_to_handle_at, dirfd, name, fh, mnt_id, flags);
-}
-
-static inline int open_by_handle(int mountfd, const char *fh, int flags)
-{
- return syscall(__NR_open_by_handle_at, mountfd, fh, flags);
-}
-#else
static inline int name_to_handle(int dirfd, const char *name,
struct file_handle *fh, int *mnt_id, int flags)
{
static int handle_utimensat(FsContext *ctx, V9fsPath *fs_path,
const struct timespec *buf)
{
- int fd, ret;
+ int ret;
+#ifdef CONFIG_UTIMENSAT
+ int fd;
struct handle_data *data = (struct handle_data *)ctx->private;
fd = open_by_handle(data->mountfd, fs_path->data, O_NONBLOCK);
}
ret = futimens(fd, buf);
close(fd);
+#else
+ ret = -1;
+ errno = ENOSYS;
+#endif
return ret;
}
int ret, mnt_id;
struct file_handle fh;
struct handle_data *data = g_malloc(sizeof(struct handle_data));
+
data->mountfd = open(ctx->fs_root, O_DIRECTORY);
if (data->mountfd < 0) {
ret = data->mountfd;