ZY1000 help/usage fixups

[openocd] / src / target / arm9tdmi.c

diff --git a/src/target/arm9tdmi.c b/src/target/arm9tdmi.c
index 301412cd7936dc4cc98894d148dfb9a8317a38f9..823e962ed0be22f618567594d5b3fdcfd8af1d46 100644 (file)
--- a/src/target/arm9tdmi.c
+++ b/src/target/arm9tdmi.c
@@ -269,8 +269,6 @@ int arm9tdmi_clock_data_in(struct arm_jtag *jtag_info, uint32_t *in)
        return ERROR_OK;
 }
 
-extern void arm_endianness(uint8_t *tmp, void *in, int size, int be, int flip);
-
 static int arm9endianness(jtag_callback_data_t arg,
        jtag_callback_data_t size, jtag_callback_data_t be,
        jtag_callback_data_t captured)
@@ -836,6 +834,12 @@ COMMAND_HANDLER(handle_arm9tdmi_catch_vectors_command)
        struct reg *vector_catch;
        uint32_t vector_catch_value;
 
+       if (!target_was_examined(target))
+       {
+               LOG_ERROR("Target not examined yet");
+               return ERROR_FAIL;
+       }
+
        /* it's uncommon, but some ARM7 chips can support this */
        if (arm7_9->common_magic != ARM7_9_COMMON_MAGIC
                        || !arm7_9->has_vector_catch) {
@@ -914,7 +918,9 @@ static const struct command_registration arm9tdmi_exec_command_handlers[] = {
                .name = "vector_catch",
                .handler = handle_arm9tdmi_catch_vectors_command,
                .mode = COMMAND_EXEC,
-               .usage = "[all|none|reset|undef|swi|pabt|dabt|irq|fiq] ...",
+               .help = "Display, after optionally updating, configuration "
+                       "of vector catch unit.",
+               .usage = "[all|none|(reset|undef|swi|pabt|dabt|irq|fiq)*]",
        },
        COMMAND_REGISTRATION_DONE
 };