[compiler-rt] [compiler-rt][rtsan] adding setlinebuf/setbuffer interception. (PR #122018)

[Florian Mayer via llvm-commits]

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@@ -429,6 +429,28 @@ TEST_F(RtsanFileTest, SetvbufDieWhenRealtime) {
   ExpectRealtimeDeath(Func, "setvbuf");
   ExpectNonRealtimeSurvival(Func);
 }
+
+TEST_F(RtsanFileTest, SetlinebufDieWhenRealtime) {
+  FILE *f = fopen(GetTemporaryFilePath(), "w");
+  EXPECT_THAT(f, Ne(nullptr));
+
+  auto Func = [&f]() { setlinebuf(f); };
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fmayer wrote:

nit: why by ref?

https://github.com/llvm/llvm-project/pull/122018