[PATCH] D48551: [HWASan] Initalize shadow earler.

[Aleksey Shlyapnikov via Phabricator via llvm-commits]

alekseyshl created this revision.
alekseyshl added a reviewer: eugenis.
Herald added subscribers: Sanitizers, delcypher, kubamracek.

Initialize shadow memory before calling more libc functions to allow
for HWASan-instrumented libc.


Repository:
  rCRT Compiler Runtime

https://reviews.llvm.org/D48551

Files:
  lib/hwasan/hwasan.cc


Index: lib/hwasan/hwasan.cc
===================================================================
--- lib/hwasan/hwasan.cc
+++ lib/hwasan/hwasan.cc
@@ -177,10 +177,6 @@
 
   __sanitizer_set_report_path(common_flags()->log_path);
 
-  InitializeInterceptors();
-  InstallDeadlySignalHandlers(HwasanOnDeadlySignal);
-  InstallAtExitHandler(); // Needs __cxa_atexit interceptor.
-
   DisableCoreDumperIfNecessary();
   if (!InitShadow()) {
     Printf("FATAL: HWAddressSanitizer cannot mmap the shadow memory.\n");
@@ -194,6 +190,10 @@
     Die();
   }
 
+  InitializeInterceptors();
+  InstallDeadlySignalHandlers(HwasanOnDeadlySignal);
+  InstallAtExitHandler(); // Needs __cxa_atexit interceptor.
+
   Symbolizer::GetOrInit()->AddHooks(EnterSymbolizer, ExitSymbolizer);
 
   InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir);


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