[sanitizer] Remove empty Symbolizer PrepareForSandboxing

Summary:
`Symbolizer::PrepareForSandboxing` is empty for all platforms and apparently
has been for a while (D10213). Remove it, and shuffle things around so that the
platform specific code is now in `PlatformPrepareForSandboxing`.

This allows to have one less symbolizer dependency in a common file, which
helps for the upcoming split.

Also remove `SymbolizerPrepareForSandboxing` in tsan_go which appears to not
be used anywhere.

Reviewers: alekseyshl, eugenis, dvyukov, mcgrathr

Reviewed By: alekseyshl

Subscribers: kubamracek, delcypher, llvm-commits, #sanitizers

Differential Revision: https://reviews.llvm.org/D44953

llvm-svn: 329094

1 files changed, 6 insertions, 6 deletions

diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_common_libcdep.cc b/compiler-rt/lib/sanitizer_common/sanitizer_common_libcdep.cc
index 224f6b19c44..9c24c30749c 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_common_libcdep.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_common_libcdep.cc
@@ -59,11 +59,6 @@ bool ColorizeReports() {
          (internal_strcmp(flag, "auto") == 0 && ReportSupportsColors());
 }
 
-static void (*sandboxing_callback)();
-void SetSandboxingCallback(void (*f)()) {
-  sandboxing_callback = f;
-}
-
 void ReportErrorSummary(const char *error_type, const StackTrace *stack,
                         const char *alt_tool_name) {
 #if !SANITIZER_GO
@@ -369,11 +364,16 @@ void ScopedErrorReportLock::CheckLocked() {
   CommonSanitizerReportMutex.CheckLocked();
 }
 
+static void (*sandboxing_callback)();
+void SetSandboxingCallback(void (*f)()) {
+  sandboxing_callback = f;
+}
+
 }  // namespace __sanitizer
 
 SANITIZER_INTERFACE_WEAK_DEF(void, __sanitizer_sandbox_on_notify,
                              __sanitizer_sandbox_arguments *args) {
-  __sanitizer::PrepareForSandboxing(args);
+  __sanitizer::PlatformPrepareForSandboxing(args);
   if (__sanitizer::sandboxing_callback)
     __sanitizer::sandboxing_callback();
 }