From: Dmitry Vyukov <dvyukov@google.com>
Date: Thu, 21 Mar 2013 06:28:04 +0000 (+0000)
Subject: tsan: add a comment about magic numbers
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5e797a8e57b1d492e0a6c892aefef5a5c8860841;p=platform%2Fupstream%2Fllvm.git

tsan: add a comment about magic numbers

llvm-svn: 177628
---

diff --git a/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc b/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc
index 76203c2..c122e4f 100644
--- a/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc
+++ b/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc
@@ -31,14 +31,17 @@ using namespace __tsan;  // NOLINT
 const int kSigCount = 64;
 
 struct my_siginfo_t {
+  // The size is determined by looking at sizeof of real siginfo_t on linux.
   u64 opaque[128 / sizeof(u64)];
 };
 
 struct sigset_t {
+  // The size is determined by looking at sizeof of real sigset_t on linux.
   u64 val[128 / sizeof(u64)];
 };
 
 struct ucontext_t {
+  // The size is determined by looking at sizeof of real ucontext_t on linux.
   u64 opaque[936 / sizeof(u64) + 1];
 };