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mimalloc/test
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Christian Heimes 9779f26dd1 Reproducer for mi_slice_to out of bounds 
```
$ CC=clang CXX=clang++ cmake ../../ -DCMAKE_BUILD_TYPE=Debug -DMI_DEBUG_UBSAN=on
$ make
$ ./mimalloc-test-api
test: malloc-zero...  ok.
test: malloc-nomem1...  mimalloc: error: allocation request is too large (9223372036854775808 bytes)
mimalloc: error: allocation request is too large (9223372036854775808 bytes)
mimalloc: error: unable to allocate memory (9223372036854775808 bytes)
ok.
test: malloc-null...  ok.
test: malloc-large...  .../src/segment.c:750:23: runtime error: index 1089 out of bounds for type 'mi_slice_t [1024]'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior .../src/segment.c:750:23 in
```

See: https://github.com/microsoft/mimalloc/issues/543
Signed-off-by: Christian Heimes <christian@python.org>
2022-02-10 16:46:45 +01:00
..
CMakeLists.txt merge from dev 2021-11-14 15:39:05 -08:00
main-override-static.c merge from dev 2020-10-11 13:38:12 -07:00
main-override.c update test files and overriding 2019-07-23 15:00:13 -07:00
main-override.cpp fix decommit bug 2021-11-11 17:45:41 -08:00
main.c remove lock code from atomics (as it is unused) 2019-06-24 17:54:41 -07:00
readme.md update documentation 2019-11-21 16:09:34 -08:00
test-api.c Reproducer for mi_slice_to out of bounds 2022-02-10 16:46:45 +01:00
test-stress.c use size_t instead of uintptr_t where appropiate 2021-11-13 15:13:16 -08:00

readme.md

Testing allocators is difficult as bugs may only surface after particular allocation patterns. The main approach to testing mimalloc is therefore to have extensive internal invariant checking (see page_is_valid in page.c for example), which is enabled in debug mode with -DMI_DEBUG_FULL=ON. The main testing strategy is then to run mimalloc-bench using full invariant checking to catch any potential problems over a wide range of intensive allocation benchmarks and programs.

However, this does not test well for the entire API surface and this is tested with test-api.c when using make test (from out/debug etc). (This is not complete yet, please add to it.)

The main.c and main-override.c are there to test if building and overriding from a local install works and therefore these build a separate test/CMakeLists.txt.