diff options
Diffstat (limited to 'arch/sandbox/cpu/start.c')
| -rw-r--r-- | arch/sandbox/cpu/start.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c index 642be164a3..622df41f54 100644 --- a/arch/sandbox/cpu/start.c +++ b/arch/sandbox/cpu/start.c @@ -244,6 +244,36 @@ static int sandbox_cmdline_cb_jump(struct sandbox_state *state, } SANDBOX_CMDLINE_OPT_SHORT(jump, 'j', 1, "Jumped from previous U-Boot"); +static int sandbox_cmdline_cb_program(struct sandbox_state *state, + const char *arg) +{ + /* + * Record the program name to use when jumping to future phases. This + * is the original executable which holds all the phases. We need to + * use this instead of argv[0] since each phase is started by + * extracting a particular binary from the full program, then running + * it. Therefore in that binary, argv[0] contains only the + * current-phase executable. + * + * For example, sandbox TPL may be started using image file: + * + * ./image.bin + * + * but then TPL needs to run VPL, which it does by extracting the VPL + * image from the image.bin file. + * + * ./temp-vpl + * + * When VPL runs it needs access to the original image.bin so it can + * extract the next phase (SPL). This works if we use '-f image.bin' + * when starting the original image.bin file. + */ + state->prog_fname = arg; + + return 0; +} +SANDBOX_CMDLINE_OPT_SHORT(program, 'p', 1, "U-Boot program name"); + static int sandbox_cmdline_cb_memory(struct sandbox_state *state, const char *arg) { |