3 files changed, 113 insertions, 1 deletions

diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index 36637af6ce..d07540776c 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -19,10 +19,13 @@
  * MA 02111-1307 USA
  */
 
+#include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <getopt.h>
+#include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <termios.h>
 #include <time.h>
 #include <unistd.h>
@@ -44,6 +47,14 @@ ssize_t os_read(int fd, void *buf, size_t count)
 	return read(fd, buf, count);
 }
 
+ssize_t os_read_no_block(int fd, void *buf, size_t count)
+{
+	const int flags = fcntl(fd, F_GETFL, 0);
+
+	fcntl(fd, F_SETFL, flags | O_NONBLOCK);
+	return os_read(fd, buf, count);
+}
+
 ssize_t os_write(int fd, const void *buf, size_t count)
 {
 	return write(fd, buf, count);
@@ -253,3 +264,101 @@ int os_parse_args(struct sandbox_state *state, int argc, char *argv[])
 
 	return 0;
 }
+
+void os_dirent_free(struct os_dirent_node *node)
+{
+	struct os_dirent_node *next;
+
+	while (node) {
+		next = node->next;
+		free(node);
+		node = next;
+	}
+}
+
+int os_dirent_ls(const char *dirname, struct os_dirent_node **headp)
+{
+	struct dirent entry, *result;
+	struct os_dirent_node *head, *node, *next;
+	struct stat buf;
+	DIR *dir;
+	int ret;
+	char *fname;
+	int len;
+
+	*headp = NULL;
+	dir = opendir(dirname);
+	if (!dir)
+		return -1;
+
+	/* Create a buffer for the maximum filename length */
+	len = sizeof(entry.d_name) + strlen(dirname) + 2;
+	fname = malloc(len);
+	if (!fname) {
+		ret = -ENOMEM;
+		goto done;
+	}
+
+	for (node = head = NULL;; node = next) {
+		ret = readdir_r(dir, &entry, &result);
+		if (ret || !result)
+			break;
+		next = malloc(sizeof(*node) + strlen(entry.d_name) + 1);
+		if (!next) {
+			os_dirent_free(head);
+			ret = -ENOMEM;
+			goto done;
+		}
+		strcpy(next->name, entry.d_name);
+		switch (entry.d_type) {
+		case DT_REG:
+			next->type = OS_FILET_REG;
+			break;
+		case DT_DIR:
+			next->type = OS_FILET_DIR;
+			break;
+		case DT_LNK:
+			next->type = OS_FILET_LNK;
+			break;
+		}
+		next->size = 0;
+		snprintf(fname, len, "%s/%s", dirname, next->name);
+		if (!stat(fname, &buf))
+			next->size = buf.st_size;
+		if (node)
+			node->next = next;
+		if (!head)
+			head = node;
+	}
+	*headp = head;
+
+done:
+	closedir(dir);
+	return ret;
+}
+
+const char *os_dirent_typename[OS_FILET_COUNT] = {
+	"   ",
+	"SYM",
+	"DIR",
+	"???",
+};
+
+const char *os_dirent_get_typename(enum os_dirent_t type)
+{
+	if (type >= 0 && type < OS_FILET_COUNT)
+		return os_dirent_typename[type];
+
+	return os_dirent_typename[OS_FILET_UNKNOWN];
+}
+
+ssize_t os_get_filesize(const char *fname)
+{
+	struct stat buf;
+	int ret;
+
+	ret = stat(fname, &buf);
+	if (ret)
+		return ret;
+	return buf.st_size;
+}
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index 7603bf9008..5287fd5ee8 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -122,4 +122,7 @@ int main(int argc, char *argv[])
 	 * never return.
 	 */
 	board_init_f(0);
+
+	/* NOTREACHED - board_init_f() does not return */
+	return 0;
 }
diff --git a/arch/sandbox/cpu/u-boot.lds b/arch/sandbox/cpu/u-boot.lds
index 1b781ebf6a..94c26f1aad 100644
--- a/arch/sandbox/cpu/u-boot.lds
+++ b/arch/sandbox/cpu/u-boot.lds
@@ -27,7 +27,7 @@ SECTIONS
 
 	. = ALIGN(4);
 	.u_boot_list : {
-	#include <u-boot.lst>
+		KEEP(*(SORT(.u_boot_list*)));
 	}
 
 	__u_boot_sandbox_option_start = .;