From 5c2859cdc30287b3593d9df88f48c31eecb0bbed Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sun, 10 Nov 2013 10:27:03 -0700 Subject: sandbox: Allow reading/writing of RAM buffer It is useful to be able to save and restore the RAM contents of sandbox U-Boot either for setting up tests, for later analysys, or for chaining together multiple tests which need to keep the same memory contents. Add a function to provide a memory file for U-Boot. This is read on start-up and written when shutting down. If the file does not exist on start-up, it will be created when shutting down. Signed-off-by: Simon Glass Signed-off-by: Simon Glass --- arch/sandbox/cpu/start.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) (limited to 'arch/sandbox/cpu/start.c') diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c index 579ece44711..452f2a98f36 100644 --- a/arch/sandbox/cpu/start.c +++ b/arch/sandbox/cpu/start.c @@ -4,12 +4,11 @@ */ #include +#include #include #include #include -#include - DECLARE_GLOBAL_DATA_PTR; int sandbox_early_getopt_check(void) @@ -108,6 +107,25 @@ static int sandbox_cmdline_cb_interactive(struct sandbox_state *state, SANDBOX_CMDLINE_OPT_SHORT(interactive, 'i', 0, "Enter interactive mode"); +static int sandbox_cmdline_cb_memory(struct sandbox_state *state, + const char *arg) +{ + int err; + + /* For now assume we always want to write it */ + state->write_ram_buf = true; + state->ram_buf_fname = arg; + + if (os_read_ram_buf(arg)) { + printf("Failed to read RAM buffer\n"); + return err; + } + + return 0; +} +SANDBOX_CMDLINE_OPT_SHORT(memory, 'm', 1, + "Read/write ram_buf memory contents from file"); + int main(int argc, char *argv[]) { struct sandbox_state *state; -- cgit v1.2.3