[asancov] Write coverage directly to a memory-mapped file.

This way does not require a __sanitizer_cov_dump() call. That's
important on Android, where apps can be killed at arbitrary time.

We write raw PCs to disk instead of module offsets; we also write
memory layout to a separate file. This increases dump size by the
factor of 2 on 64-bit systems.

llvm-svn: 209653

1 files changed, 0 insertions, 12 deletions

diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_common.cc b/compiler-rt/lib/sanitizer_common/sanitizer_common.cc
index 305056e2472..05bd8764c61 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_common.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_common.cc
@@ -263,11 +263,6 @@ void DecreaseTotalMmap(uptr size) {
   atomic_fetch_sub(&g_total_mmaped, size, memory_order_relaxed);
 }
 
-static void (*sandboxing_callback)();
-void SetSandboxingCallback(void (*f)()) {
-  sandboxing_callback = f;
-}
-
 }  // namespace __sanitizer
 
 using namespace __sanitizer;  // NOLINT
@@ -300,13 +295,6 @@ void __sanitizer_set_report_path(const char *path) {
   }
 }
 
-void NOINLINE
-__sanitizer_sandbox_on_notify(__sanitizer_sandbox_arguments *args) {
-  PrepareForSandboxing(args);
-  if (sandboxing_callback)
-    sandboxing_callback();
-}
-
 void __sanitizer_report_error_summary(const char *error_summary) {
   Printf("%s\n", error_summary);
 }