ARM9TDMI: Fix segfault.

The handler for "arm9tdmi vector_catch ..." did not check if target has already been examined. Without this fix it segfaults when using NULL pointer "arm7_9->eice_cache". Signed-off-by: Antonio Borneo <[email protected]> Signed-off-by: David Brownell <[email protected]>
ene-steven · Dec 30, 2009 · 17fb7ea · 17fb7ea
1 parent c116d8f
commit 17fb7ea
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/target/arm9tdmi.c b/src/target/arm9tdmi.c
@@ -834,6 +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) {