At present os_jump_to_image() jumps to a given image, and this is written to a file. But it is useful to be able to jump to a file also.
To avoid duplicating code, split out the implementation of os_jump_to_image() into a new function that jumps to a file.
Signed-off-by: Simon Glass sjg@chromium.org ---
arch/sandbox/cpu/os.c | 48 ++++++++++++++++++++++++++++++++++--------- 1 file changed, 38 insertions(+), 10 deletions(-)
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c index 8b860959f05..5b75d564977 100644 --- a/arch/sandbox/cpu/os.c +++ b/arch/sandbox/cpu/os.c @@ -489,7 +489,18 @@ static int make_exec(char *fname, const void *data, int size) return 0; }
-static int add_args(char ***argvp, const char *add_args[], int count) +/** + * add_args() - Allocate a new argv with the given args + * + * This is used to create a new argv array with all the old arguments and some + * new ones that are passed in + * + * @argvp: Returns newly allocated args list + * @add_args: Arguments to add, each a string + * @count: Number of arguments in @add_args + * @return 0 if OK, -ENOMEM if out of memory + */ +static int add_args(char ***argvp, char *add_args[], int count) { char **argv; int argc; @@ -510,21 +521,26 @@ static int add_args(char ***argvp, const char *add_args[], int count) return 0; }
-int os_jump_to_image(const void *dest, int size) +/** + * os_jump_to_file() - Jump to a new program + * + * This saves the memory buffer, sets up arguments to the new process, then + * execs it. + * + * @fname: Filename to exec + * @return does not return on success, any return value is an error + */ +static int os_jump_to_file(const char *fname) { struct sandbox_state *state = state_get_current(); - char fname[30], mem_fname[30]; + char mem_fname[30]; int fd, err; - const char *extra_args[5]; + char *extra_args[5]; char **argv = state->argv; #ifdef DEBUG - int argc, i; + int i; #endif
- err = make_exec(fname, dest, size); - if (err) - return err; - strcpy(mem_fname, "/tmp/u-boot.mem.XXXXXX"); fd = mkstemp(mem_fname); if (fd < 0) @@ -537,7 +553,7 @@ int os_jump_to_image(const void *dest, int size) os_fd_restore();
extra_args[0] = "-j"; - extra_args[1] = fname; + extra_args[1] = (char *)fname; extra_args[2] = "-m"; extra_args[3] = mem_fname; extra_args[4] = "--rm_memory"; @@ -562,6 +578,18 @@ int os_jump_to_image(const void *dest, int size) return unlink(fname); }
+int os_jump_to_image(const void *dest, int size) +{ + char fname[30]; + int err; + + err = make_exec(fname, dest, size); + if (err) + return err; + + return os_jump_to_file(fname); +} + int os_find_u_boot(char *fname, int maxlen) { struct sandbox_state *state = state_get_current();