[binutils-gdb] Initialize res in get_next_pcs_read_memory_unsigned_integer

[Yao Qi <qiyao at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=9e78496443ec1525ee94c54249779639b4cded0b

commit 9e78496443ec1525ee94c54249779639b4cded0b
Author: Yao Qi <yao.qi@linaro.org>
Date:   Thu May 5 09:00:56 2016 +0100

    Initialize res in get_next_pcs_read_memory_unsigned_integer
    
    This patch initialize res to zero, otherwise, it may have some garbage
    bits after the *the_target->read_memory call.
    
    gdb/gdbserver:
    
    2016-05-05  Yao Qi  <yao.qi@linaro.org>
    
    	* linux-arm-low.c (get_next_pcs_read_memory_unsigned_integer):
    	Initialize res to zero.

Diff:
---
 gdb/gdbserver/ChangeLog       | 5 +++++
 gdb/gdbserver/linux-arm-low.c | 1 +
 2 files changed, 6 insertions(+)

diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index 70cd4b0..a43f1e1 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,5 +1,10 @@
 2016-05-05  Yao Qi  <yao.qi@linaro.org>
 
+	* linux-arm-low.c (get_next_pcs_read_memory_unsigned_integer):
+	Initialize res to zero.
+
+2016-05-05  Yao Qi  <yao.qi@linaro.org>
+
 	* linux-arm-low.c (arm_sigreturn_next_pc): Change type of cpsr
 	to uint32_t.
 
diff --git a/gdb/gdbserver/linux-arm-low.c b/gdb/gdbserver/linux-arm-low.c
index 952ec26..2ffda87 100644
--- a/gdb/gdbserver/linux-arm-low.c
+++ b/gdb/gdbserver/linux-arm-low.c
@@ -262,6 +262,7 @@ get_next_pcs_read_memory_unsigned_integer (CORE_ADDR memaddr,
 {
   ULONGEST res;
 
+  res = 0;
   (*the_target->read_memory) (memaddr, (unsigned char *) &res, len);
   return res;
 }