From: Greg Clayton <gclayton@apple.com>
Date: Thu, 7 Feb 2013 03:38:34 +0000 (+0000)
Subject: Fixed an bug found by running LLDB with the address sanitizer! We were accessing... 
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f6cdd126e8a305facea26144230b1975f2076a31;p=platform%2Fupstream%2Fllvm.git

Fixed an bug found by running LLDB with the address sanitizer! We were accessing one past the end of the buffer.

llvm-svn: 174578
---

diff --git a/lldb/source/Core/SourceManager.cpp b/lldb/source/Core/SourceManager.cpp
index 65b8165..8d3400d 100644
--- a/lldb/source/Core/SourceManager.cpp
+++ b/lldb/source/Core/SourceManager.cpp
@@ -569,11 +569,14 @@ SourceManager::File::CalculateLineOffsets (uint32_t line)
                     register char curr_ch = *s;
                     if (is_newline_char (curr_ch))
                     {
-                        register char next_ch = s[1];
-                        if (is_newline_char (next_ch))
+                        if (s + 1 < end)
                         {
-                            if (curr_ch != next_ch)
-                                ++s;
+                            register char next_ch = s[1];
+                            if (is_newline_char (next_ch))
+                            {
+                                if (curr_ch != next_ch)
+                                    ++s;
+                            }
                         }
                         m_offsets.push_back(s + 1 - start);
                     }