diff options
author | Simon Glass <sjg@chromium.org> | 2013-11-10 10:27:04 -0700 |
---|---|---|
committer | Simon Glass <sjg@chromium.org> | 2014-01-08 17:25:08 -0700 |
commit | 1209e2727c60d052ce875aa39bb8b9ba2edbfbdf (patch) | |
tree | 73c3077b54985be1e4424b64fbb8659aac47ed23 /arch/sandbox/cpu/start.c | |
parent | 5c2859cdc30287b3593d9df88f48c31eecb0bbed (diff) |
sandbox: Add facility to save/restore sandbox state
It is often useful to be able to save out the state from a sandbox test
run, for analysis or to restore it later to continue a test. Add generic
infrastructure for doing this using a device tree binary file. This is
a flexible tagged file format which is already supported by U-Boot, and
it supports hierarchy if needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Hung-ying Tyan <tyanh@chromium.org>
Diffstat (limited to 'arch/sandbox/cpu/start.c')
-rw-r--r-- | arch/sandbox/cpu/start.c | 49 |
1 files changed, 45 insertions, 4 deletions
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c index 452f2a98f36..1df21d49fa5 100644 --- a/arch/sandbox/cpu/start.c +++ b/arch/sandbox/cpu/start.c @@ -126,19 +126,56 @@ static int sandbox_cmdline_cb_memory(struct sandbox_state *state, SANDBOX_CMDLINE_OPT_SHORT(memory, 'm', 1, "Read/write ram_buf memory contents from file"); +static int sandbox_cmdline_cb_state(struct sandbox_state *state, + const char *arg) +{ + state->state_fname = arg; + return 0; +} +SANDBOX_CMDLINE_OPT_SHORT(state, 's', 1, "Specify the sandbox state FDT"); + +static int sandbox_cmdline_cb_read(struct sandbox_state *state, + const char *arg) +{ + state->read_state = true; + return 0; +} +SANDBOX_CMDLINE_OPT_SHORT(read, 'r', 0, "Read the state FDT on startup"); + +static int sandbox_cmdline_cb_write(struct sandbox_state *state, + const char *arg) +{ + state->write_state = true; + return 0; +} +SANDBOX_CMDLINE_OPT_SHORT(write, 'w', 0, "Write state FDT on exit"); + +static int sandbox_cmdline_cb_ignore_missing(struct sandbox_state *state, + const char *arg) +{ + state->ignore_missing_state_on_read = true; + return 0; +} +SANDBOX_CMDLINE_OPT_SHORT(ignore_missing, 'n', 0, + "Ignore missing state on read"); + int main(int argc, char *argv[]) { struct sandbox_state *state; - int err; + int ret; - err = state_init(); - if (err) - return err; + ret = state_init(); + if (ret) + goto err; state = state_get_current(); if (os_parse_args(state, argc, argv)) return 1; + ret = sandbox_read_state(state, state->state_fname); + if (ret) + goto err; + /* Do pre- and post-relocation init */ board_init_f(0); @@ -146,4 +183,8 @@ int main(int argc, char *argv[]) /* NOTREACHED - board_init_r() does not return */ return 0; + +err: + printf("Error %d\n", ret); + return 1; } |