sandbox: Add a new 'sb' command

The old 'sb' command was deprecated in 2015 and replaced with 'host'. It
is useful to be able to access some internal sandbox state, particularly
for testing.

Resurrect the old command and provide a way to print some basic state
information (currently just the arguments to sandbox).

Signed-off-by: Simon Glass <sjg@chromium.org>

2 files changed, 17 insertions, 0 deletions

diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index 28ca35392c9..b1566a81435 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -305,6 +305,16 @@ static void setup_ram_buf(struct sandbox_state *state)
 	gd->ram_size = state->ram_size;
 }
 
+void state_show(struct sandbox_state *state)
+{
+	char **p;
+
+	printf("Arguments:\n");
+	for (p = state->argv; *p; p++)
+		printf("%s ", *p);
+	printf("\n");
+}
+
 int main(int argc, char *argv[])
 {
 	struct sandbox_state *state;
diff --git a/arch/sandbox/include/asm/state.h b/arch/sandbox/include/asm/state.h
index 0a2e3c41ae3..8fabe70a86d 100644
--- a/arch/sandbox/include/asm/state.h
+++ b/arch/sandbox/include/asm/state.h
@@ -243,6 +243,13 @@ bool state_get_skip_delays(void);
 void state_reset_for_test(struct sandbox_state *state);
 
 /**
+ * state_show() - Show information about the sandbox state
+ *
+ * @param state		Sandbox state to show
+ */
+void state_show(struct sandbox_state *state);
+
+/**
  * Initialize the test system state
  */
 int state_init(void);