From: Antonio Borneo <borneo.antonio@gmail.com>
Date: Wed, 30 Dec 2009 18:43:56 +0000 (+0800)
Subject: ARM9TDMI: Fix segfault.
X-Git-Tag: v0.4.0-rc2~171
X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=commitdiff_plain;h=17fb7ead4b901f10c01c0824f594d91775b012b3

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 <borneo.antonio@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
---

diff --git a/src/target/arm9tdmi.c b/src/target/arm9tdmi.c
index 0e99cd1e58..ae0c4e05ed 100644
--- 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) {