r282752 - [sanitizer-coverage] a bit more docs
Kostya Serebryany via cfe-commits
cfe-commits at lists.llvm.org
Thu Sep 29 12:06:09 PDT 2016
Author: kcc
Date: Thu Sep 29 14:06:09 2016
New Revision: 282752
URL: http://llvm.org/viewvc/llvm-project?rev=282752&view=rev
Log:
[sanitizer-coverage] a bit more docs
Modified:
cfe/trunk/docs/SanitizerCoverage.rst
Modified: cfe/trunk/docs/SanitizerCoverage.rst
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/SanitizerCoverage.rst?rev=282752&r1=282751&r2=282752&view=diff
==============================================================================
--- cfe/trunk/docs/SanitizerCoverage.rst (original)
+++ cfe/trunk/docs/SanitizerCoverage.rst Thu Sep 29 14:06:09 2016
@@ -385,7 +385,7 @@ Example:
// Now you can get the PC and do whatever you want:
// store it somewhere or symbolize it and print right away.
// The values of `*guard` are as you set them in
- // __sanitizer_cov_trace_pc_guard_init and so you can make the consecutive
+ // __sanitizer_cov_trace_pc_guard_init and so you can make them consecutive
// and use them to dereference an array or a bit vector.
void *PC = __builtin_return_address(0);
char PcDescr[1024];
@@ -415,6 +415,18 @@ Example:
guard: 0x71bcd4 2 PC 0x4ecd5b in main trace-pc-guard-example.cc:2
guard: 0x71bcd8 3 PC 0x4ecd9e in main trace-pc-guard-example.cc:3:7
+.. code-block:: console
+
+ ASAN_OPTIONS=strip_path_prefix=`pwd`/ ./a.out with-foo
+
+
+.. code-block:: console
+
+ INIT: 0x71bcd0 0x71bce0
+ guard: 0x71bcd4 2 PC 0x4ecd5b in main trace-pc-guard-example.cc:3
+ guard: 0x71bcdc 4 PC 0x4ecdc7 in main trace-pc-guard-example.cc:4:17
+ guard: 0x71bcd0 1 PC 0x4ecd20 in foo() trace-pc-guard-example.cc:2:14
+
Tracing data flow
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