[asan] mention -fno-omit-frame-pointer in the docs
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147663 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/AddressSanitizer.html b/docs/AddressSanitizer.html
index e6f7e99..3b25f26 100644
--- a/docs/AddressSanitizer.html
+++ b/docs/AddressSanitizer.html
@@ -48,6 +48,8 @@
<h2 id="intro">Usage</h2>
Simply compile and link your program with <tt>-faddress-sanitizer</tt> flag. <BR>
To get a reasonable performance add <tt>-O1</tt> or higher. <BR>
+To get nicer stack traces in error messages add
+<tt>-fno-omit-frame-pointer</tt>. <BR>
<pre>
% cat example_UseAfterFree.cc
@@ -59,7 +61,7 @@
</pre>
<pre>
-% clang -O1 -g -faddress-sanitizer example_UseAfterFree.cc
+% clang -O1 -g -faddress-sanitizer -fno-omit-frame-pointer example_UseAfterFree.cc
</pre>
If a bug is detected, the program will print an error message to stderr and exit with a
