[PATCH] [compiler-rt] Ensure AsanInitFromRtl is called from a static initializer on OS X by using ASAN_DYNAMIC=1

[Kuba Brecka]

Changing the patch to use ASAN_DYNAMIC=1 on OS X instead. Changing the title of the

> Can you please remind me why do we want to launch without DYLD_INSERT_LIBRARIES?


We don't want to launch without DYLD_INSERT_LIBRARIES.  Whenever we detect that, we relaunch or abort().  But the cases/issues that this patch solves are crashes that happen even *before* we can detect the missing DYLD_INSERT_LIBRARIES.  I'm just trying to initialize ASan even sooner, so we can detect the missing env var sooner.


http://reviews.llvm.org/D7117

Files:
  lib/asan/CMakeLists.txt
  make/platform/clang_darwin.mk
  test/asan/TestCases/Darwin/linked-only.cc
  test/asan/TestCases/Darwin/mixing-global-constructors.cc

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