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Update sanitizer docs #74522

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Merged
merged 2 commits into from
Jul 21, 2020
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Update sanitizer docs #74522

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251878e
Remove CC & CFLAGS from MemorySanitizer example
tmiasko Jul 18, 2020
58b8620
Document AddressSanitizer memory leak detection defaults
tmiasko Jul 18, 2020
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7 changes: 3 additions & 4 deletions src/doc/unstable-book/src/compiler-flags/sanitizer.md
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Expand Up @@ -26,6 +26,9 @@ of bugs:
* Double-free, invalid free
* Memory leaks

The memory leak detection is enabled by default on Linux, and can be enabled
with runtime flag `ASAN_OPTIONS=detect_leaks=1` on macOS.

AddressSanitizer is supported on the following targets:

* `x86_64-apple-darwin`
Expand Down Expand Up @@ -196,10 +199,6 @@ fn main() {

```shell
$ export \
CC=clang \
CXX=clang++ \
CFLAGS='-fsanitize=memory -fsanitize-memory-track-origins' \
CXXFLAGS='-fsanitize=memory -fsanitize-memory-track-origins' \
RUSTFLAGS='-Zsanitizer=memory -Zsanitizer-memory-track-origins' \
RUSTDOCFLAGS='-Zsanitizer=memory -Zsanitizer-memory-track-origins'
$ cargo clean
Expand Down