From baa899667effc68f7e29c22d82f23ae2d42f8ee0 Mon Sep 17 00:00:00 2001
From: Kostya Serebryany <kcc@google.com>
Date: Sun, 18 Sep 2016 04:52:23 +0000
Subject: [PATCH] [libFuzzer] use 'if guard' instead of 'if guard >= 0' with
trace-pc; change the guard type to intptr_t; use separate array for 8-bit
counters
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@281845 91177308-0d34-0410-b5e6-96231b3b80d8
---
docs/SanitizerCoverage.rst | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/docs/SanitizerCoverage.rst b/docs/SanitizerCoverage.rst
index a4693fe2c38..decad72a14f 100644
--- a/docs/SanitizerCoverage.rst
+++ b/docs/SanitizerCoverage.rst
@@ -331,10 +331,10 @@ on every edge:
.. code-block:: none
- if (guard_variable >= 0)
+ if (guard_variable)
__sanitizer_cov_trace_pc_guard(&guard_variable)
-Every edge will have its own 8-byte `guard_variable`.
+Every edge will have its own `guard_variable` (uintptr_t).
The compler will also insert a module constructor that will call
@@ -342,7 +342,7 @@ The compler will also insert a module constructor that will call
// The guards are [start, stop).
// This function may be called multiple times with the same values of start/stop.
- __sanitizer_cov_trace_pc_guard_init(uint64_t *start, uint64_t *stop);
+ __sanitizer_cov_trace_pc_guard_init(uintptr_t *start, uintptr_t *stop);
Similarly to `trace-pc,indirect-calls`, with `trace-pc-guards,indirect-calls`
``__sanitizer_cov_trace_pc_indirect(void *callee)`` will be inserted on every indirect call.
--
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