[libFuzzer] extend the -fork=1 functionality. Still not fully usable, but good enough for the first unit test

llvm-svn: 353775

1 files changed, 8 insertions, 1 deletions

diff --git a/compiler-rt/lib/fuzzer/FuzzerIOPosix.cpp b/compiler-rt/lib/fuzzer/FuzzerIOPosix.cpp
index 0daed83e5eb..54c511ed060 100644
--- a/compiler-rt/lib/fuzzer/FuzzerIOPosix.cpp
+++ b/compiler-rt/lib/fuzzer/FuzzerIOPosix.cpp
@@ -136,11 +136,18 @@ bool IsInterestingCoverageFile(const std::string &FileName) {
   return true;
 }
 
-
 void RawPrint(const char *Str) {
   write(2, Str, strlen(Str));
 }
 
+void MkDir(const std::string &Path) {
+  mkdir(Path.c_str(), 0700);
+}
+
+void RmDir(const std::string &Path) {
+  rmdir(Path.c_str());
+}
+
 }  // namespace fuzzer
 
 #endif // LIBFUZZER_POSIX