From: Pedro Franco de Carvalho <pedromfc@linux.ibm.com>
Date: Fri, 9 Aug 2019 19:49:46 +0000 (-0300)
Subject: Fix access to uninitialized variable in fill_in_stop_func
X-Git-Tag: binutils-2_33~281
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=dac36daf78653a8e4688b825cdb15461a88470d2;p=external%2Fbinutils.git

Fix access to uninitialized variable in fill_in_stop_func

This patch changes find_pc_partial_function so that *block is set to
nullptr when it fails, so that fill_in_stop_func won't access an
uninitialized variable.

gdb/ChangeLog:
2019-08-09  Pedro Franco de Carvalho  <pedromfc@linux.ibm.com>

	* blockframe.c (find_pc_partial_function): Set *block to nullptr
	when the function fails.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 00e4bac..4008783 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2019-08-09  Pedro Franco de Carvalho  <pedromfc@linux.ibm.com>
+
+	* blockframe.c (find_pc_partial_function): Set *block to nullptr
+	when the function fails.
+
 2019-08-09  Andreas Arnez  <arnez@linux.ibm.com>
 
 	* s390-tdep.c (s390_type_align): New function.
diff --git a/gdb/blockframe.c b/gdb/blockframe.c
index fe7807b..4462274 100644
--- a/gdb/blockframe.c
+++ b/gdb/blockframe.c
@@ -331,6 +331,8 @@ find_pc_partial_function (CORE_ADDR pc, const char **name, CORE_ADDR *address,
 	*address = 0;
       if (endaddr != NULL)
 	*endaddr = 0;
+      if (block != nullptr)
+	*block = nullptr;
       return 0;
     }