[sanitizer] move the coverage interface into a separate header, <sanitizer/coverage_interface.h>. NFC, except for the header name change. This may break existing users, but in this case it's better this way (not too many users so far)

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@228017 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 46 insertions, 0 deletions

diff --git a/include/sanitizer/coverage_interface.h b/include/sanitizer/coverage_interface.h
new file mode 100644
index 000000000..88a7e4800
--- /dev/null
+++ b/include/sanitizer/coverage_interface.h
@@ -0,0 +1,46 @@
+//===-- sanitizer/coverage_interface.h --------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Public interface for sanitizer coverage.
+//===----------------------------------------------------------------------===//
+
+#ifndef SANITIZER_COVERAG_INTERFACE_H
+#define SANITIZER_COVERAG_INTERFACE_H
+
+#include <sanitizer/common_interface_defs.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+  // Initialize coverage.
+  void __sanitizer_cov_init();
+  // Record and dump coverage info.
+  void __sanitizer_cov_dump();
+  // Open <name>.sancov.packed in the coverage directory and return the file
+  // descriptor. Returns -1 on failure, or if coverage dumping is disabled.
+  // This is intended for use by sandboxing code.
+  intptr_t __sanitizer_maybe_open_cov_file(const char *name);
+  // Get the number of total unique covered entities (blocks, edges, calls).
+  // This can be useful for coverage-directed in-process fuzzers.
+  uintptr_t __sanitizer_get_total_unique_coverage();
+
+  // Reset the basic-block (edge) coverage to the initial state.
+  // Useful for in-process fuzzing to start collecting coverage from scratch.
+  // Experimental, will likely not work for multi-threaded process.
+  void __sanitizer_reset_coverage();
+  // Set *data to the array of covered PCs and return the size of that array.
+  // Some of the entries in *data will be zero.
+  uintptr_t __sanitizer_get_coverage_guards(uintptr_t **data);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // SANITIZER_COVERAG_INTERFACE_H