bjoernager/rust
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Enable leak sanitizer test case

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* Use `black_box` to avoid memory leak removal during optimization.
* Leak multiple objects to make test case more robust.
This commit is contained in:
Tomasz Miąsko 2020-01-15 00:00:00 +00:00
parent 6d0bb91bcb
commit 5d00b5c4aa
2 changed files with 10 additions and 7 deletions
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6
src/test/run-make-fulldeps/sanitizer-leak/Makefile
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@ -1,11 +1,7 @@
-include ../tools.mk -include ../tools.mk
# needs-sanitizer-support # needs-sanitizer-support
# only-linux
# only-x86_64
# ignore-test
# FIXME(#46126) ThinLTO for libstd broke this test
all: all:
$(RUSTC) -C opt-level=1 -g -Z sanitizer=leak -Z print-link-args leak.rs | $(CGREP) rustc_rt.lsan $(RUSTC) -O -Z sanitizer=leak -Z print-link-args leak.rs | $(CGREP) rustc_rt.lsan
$(TMPDIR)/leak 2>&1 | $(CGREP) 'detected memory leaks' $(TMPDIR)/leak 2>&1 | $(CGREP) 'detected memory leaks'

9
src/test/run-make-fulldeps/sanitizer-leak/leak.rs
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@ -1,6 +1,13 @@
#![feature(test)]
use std::hint::black_box;
use std::mem; use std::mem;
fn main() { fn main() {
let xs = vec![1, 2, 3, 4]; for _ in 0..10 {
let xs = vec![1, 2, 3];
// Prevent compiler from removing the memory allocation.
let xs = black_box(xs);
mem::forget(xs); mem::forget(xs);
} }
}