[PATCH] D46459: [asan] On RTEMS, checks for asan_inited before entering ASan run-time

[Walter Lee via Phabricator via llvm-commits]

waltl updated this revision to Diff 145628.
waltl added a comment.

Rely on early init of shadow memory, so now we can remove most checks.
2 are left.


Repository:
  rL LLVM

https://reviews.llvm.org/D46459

Files:
  compiler-rt/lib/asan/asan_fake_stack.cc
  compiler-rt/lib/asan/asan_rtl.cc


Index: compiler-rt/lib/asan/asan_rtl.cc
===================================================================
--- compiler-rt/lib/asan/asan_rtl.cc
+++ compiler-rt/lib/asan/asan_rtl.cc
@@ -524,6 +524,9 @@
 using namespace __asan;  // NOLINT
 
 void NOINLINE __asan_handle_no_return() {
+  if (SANITIZER_RTEMS && !asan_inited)
+    return;
+
   if (asan_init_is_running)
     return;
 
Index: compiler-rt/lib/asan/asan_fake_stack.cc
===================================================================
--- compiler-rt/lib/asan/asan_fake_stack.cc
+++ compiler-rt/lib/asan/asan_fake_stack.cc
@@ -192,6 +192,8 @@
 }
 
 static FakeStack *GetFakeStackFast() {
+  if (SANITIZER_RTEMS && !asan_inited)
+    return nullptr;
   if (FakeStack *fs = GetTLSFakeStack())
     return fs;
   if (!__asan_option_detect_stack_use_after_return)


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