Files
clang-p2996/compiler-rt/lib/asan
Dmitry Vyukov 1377179396 sanitizer_common: initialize sanitizer runtimes lazily from signal interceptors
Currently if a program calls sigaction very early (before non-lazy sanitizer
initialization, in particular if .preinit_array initialization is not enabled),
then sigaction will wrongly fail since the interceptor is not initialized yet.

In all other interceptors we do lazy runtime initialization for this reason,
but we don't do it in the signal interceptors.
Do lazy runtime initialization in signal interceptors as well.

Reviewed By: melver

Differential Revision: https://reviews.llvm.org/D155188
2023-07-13 16:28:25 +02:00
..

AddressSanitizer RT
================================
This directory contains sources of the AddressSanitizer (ASan) runtime library.

Directory structure:
README.txt       : This file.
Makefile.mk      : File for make-based build.
CMakeLists.txt   : File for cmake-based build.
asan_*.{cc,h}    : Sources of the asan runtime library.
scripts/*        : Helper scripts.
tests/*          : ASan unit tests.

Also ASan runtime needs the following libraries:
lib/interception/      : Machinery used to intercept function calls.
lib/sanitizer_common/  : Code shared between various sanitizers.

ASan runtime currently also embeds part of LeakSanitizer runtime for
leak detection (lib/lsan/lsan_common.{cc,h}).

ASan runtime can only be built by CMake. You can run ASan tests
from the root of your CMake build tree:

make check-asan

For more instructions see:
https://github.com/google/sanitizers/wiki/AddressSanitizerHowToBuild