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llvm-project/compiler-rt/test/fuzzer/windows-opt-ref.test

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[SanitizerCoverage] Prevent /OPT:REF from stripping constructors Summary: Linking with the /OPT:REF linker flag when building COFF files causes the linker to strip SanitizerCoverage's constructors. Prevent this by giving the constructors WeakODR linkage and by passing the linker a directive to include sancov.module_ctor. Include a test in compiler-rt to verify libFuzzer can be linked using /OPT:REF Reviewers: morehouse, rnk Reviewed By: morehouse, rnk Subscribers: rnk, morehouse, hiraditya Differential Revision: https://reviews.llvm.org/D52119 llvm-svn: 344391
2018-10-13 02:11:47 +08:00
REQUIRES: windows
// Verify that the linker eliminating unreferenced functions (/OPT:REF) does not
// strip sancov module constructor.
Use clang driver for libfuzzer tests on Windows Summary: There's no real reason to use clang-cl on Windows, the clang driver works just as well. This fixes a test which uses the -O0 flag, which was recently removed from clang-cl to match MSVC, which lacks this flag. While I'm here, remove the explicit -std=c++11 flag. Previously, this flag was necessary when the default C++ standard was C++98. Now that the default is C++14, this is no longer necessary. It's problematic on Windows, because the Visual C++ standard library relies on C++14 features, and attempting to compile it with C++11 results in errors. Rather than adding logic to conditionally set the standard to C++11 only on non-Win, this flag can be removed. See http://lab.llvm.org:8011/builders/clang-x64-windows-msvc and https://reviews.llvm.org/D64506. Reviewers: morehouse, thakis Subscribers: #sanitizers, llvm-commits Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D64587 llvm-svn: 365841
2019-07-12 07:20:04 +08:00
RUN: %cpp_compiler %S/SimpleCmpTest.cpp -o %t-SimpleCmpTest -Wl,-OPT:REF
[SanitizerCoverage] Prevent /OPT:REF from stripping constructors Summary: Linking with the /OPT:REF linker flag when building COFF files causes the linker to strip SanitizerCoverage's constructors. Prevent this by giving the constructors WeakODR linkage and by passing the linker a directive to include sancov.module_ctor. Include a test in compiler-rt to verify libFuzzer can be linked using /OPT:REF Reviewers: morehouse, rnk Reviewed By: morehouse, rnk Subscribers: rnk, morehouse, hiraditya Differential Revision: https://reviews.llvm.org/D52119 llvm-svn: 344391
2018-10-13 02:11:47 +08:00
RUN: not %run %t-SimpleCmpTest -seed=1 -runs=100000000 2>&1 | FileCheck %s
CHECK-NOT: ERROR: no interesting inputs were found. Is the code instrumented for coverage? Exiting.
CHECK: BINGO