[libFuzzer][Windows] Port fork mode to Windows
Summary:
Port libFuzzer's fork mode to Windows.
Implement Windows versions of MkDir, RmDir, and IterateDirRecursive to do this.
Don't print error messages under new normal uses of FileSize (on a non-existent file).
Implement portable way of piping output to /dev/null.
Fix test for Windows and comment fork-sigusr.test on why it won't be ported to Win.
Reviewers: zturner
Reviewed By: zturner
Subscribers: kcc, zturner, jdoerfert, #sanitizers, llvm-commits
Tags: #sanitizers, #llvm
Differential Revision: https://reviews.llvm.org/D58513
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk/lib/fuzzer@355019 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/FuzzerMerge.cpp b/FuzzerMerge.cpp
index d70aa3e..dace45e 100644
--- a/FuzzerMerge.cpp
+++ b/FuzzerMerge.cpp
@@ -331,7 +331,7 @@
Cmd.addFlag("merge_control_file", CFPath);
Cmd.addFlag("merge_inner", "1");
if (!V) {
- Cmd.setOutputFile("/dev/null"); // TODO: need to handle this on Windows?
+ Cmd.setOutputFile(getDevNull());
Cmd.combineOutAndErr();
}
auto ExitCode = ExecuteCommand(Cmd);