7039773b24
Summary: 861b69faee5df8d4e13ef316c7474a10e4069e81 (rdar://problem/58789439) while fixing symbolization for TSan completely broke ASan's runtime for the simulators. The problem with the previous patch is that the memory passed to `putenv()` was poisoned and when passed to `putenv()` it tripped an interceptor for `strchr()` which saw the memory was poisoned and raised an ASan issue. The memory was poisoned because `AtosSymbolizerProcess` objects are created using ASan's internal allocator. Memory from this allocator gets poisoned with `kAsanInternalHeapMagic`. To workaround this, this patch makes the memory for the environment variable entry a global variable that isn't poisoned. This pass also adds a `DCHECK(getenv(K_ATOS_ENV_VAR))` because the following DCHECK would crash because `internal_strcmp()` doesn't work on nullptr. rdar://problem/62067724 Reviewers: kubamracek, yln Subscribers: #sanitizers, llvm-commits Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D78525
Compiler-RT ================================ This directory and its subdirectories contain source code for the compiler support routines. Compiler-RT is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. ================================