Segmentation fault when building with ASan

[djwenren]

I always get segmentation fault when building with ASan on. Here is the way to trigger the problem

bazel run --copt=-fsanitize=address --linkopt=-fsanitize=address tcmalloc/testing:hello_main

It appears the seg fault happens before the main function is called as I added a quick print as the first statement in main and it was not printed. The seg fault goes away if I remove the "malloc = "//tcmalloc" in the cc_binary target.

I use the LLVM 10 toolchain on Ubuntu 20.04. Bazel version 3.4.1. TCMalloc is at commit 65bf455.

[ckennelly]

AddressSanitizer provides its own copy of malloc and related functions, which is likely conflicting with the one provided by TCMalloc.