Support sanitizer libaries #38
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The patch adds a test that tests a target function implemented using Lua C API. The current version of the test does not check anything, because luzer can't pass a condition and reach `abort()`. Needed for the following commit.
The patch adds a test that tests a target function implemented in C and called using LuaJIT FFI. The current version of the test does not check anything, because luzer can't pass condition and reach `abort()`. Needed for the following commit.
Needed for the following commit.
The patch makes libFuzzer install additional files at installation time, which are .so files containing ASan+libFuzzer and UBSan+libFuzzer. These files must be preloaded to allow use of a sanitizer without having to modify Lua runtime. 1. google/atheris@6769fec 2. google/atheris@6c17ee4 3. https://github.com/google/atheris/blob/cbf4ad989dcb4d3ef42152990ed89cfceb50e059/native_extension_fuzzing.md
The patch renames a file version.c to config.c to make purpose more general. Required for the following commit.
The patch introduces a method `path()` that returns a path to
shared libraries with libFuzzer and sanitizers.
`require('luzer').path` returns a table with paths to shared
libraries with sanitizers:
```
> luzer.path
---
- ubsan: ./build/luzer/lf_ubsan.so
asan: ./build/luzer/lf_asan.so
ubsan_cxx: ./build/luzer/lf_ubsan_cxx.so
```
Usage: LD_PRELOAD=$(luajit -e "print(require('luzer').path.asan)") \
luajit examples/example_basic.lua
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