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| author | Johan Lorenzo <jlorenzo@mozilla.com> | 2016-02-02 17:56:59 +0000 |
|---|---|---|
| committer | Johan Lorenzo <jlorenzo@mozilla.com> | 2016-02-11 11:14:32 +0100 |
| commit | 274f27a476d48a006f8e7142d4a239f63ea2d403 (patch) | |
| tree | d448d51eecf2e31e071c5acccab5dd9d69bf3523 /src/test | |
| parent | b9732ed1471689976fc32fa6757fd29c5a587f5d (diff) | |
| download | rust-274f27a476d48a006f8e7142d4a239f63ea2d403.tar.gz rust-274f27a476d48a006f8e7142d4a239f63ea2d403.zip | |
Add -C link-dead-code option r=alexcrichton
Turning gc-sections off improves code coverage based for tools which use DWARF debugging information (like kcov). Otherwise dead code is stripped and kcov returns a coverage percentage that doesn't reflect reality.
Diffstat (limited to 'src/test')
| -rw-r--r-- | src/test/run-make/codegen-options-parsing/Makefile | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/test/run-make/codegen-options-parsing/Makefile b/src/test/run-make/codegen-options-parsing/Makefile index e439b27a190..c1f9065e9d2 100644 --- a/src/test/run-make/codegen-options-parsing/Makefile +++ b/src/test/run-make/codegen-options-parsing/Makefile @@ -22,3 +22,10 @@ all: $(RUSTC) -C lto=foo dummy.rs 2>&1 | \ grep 'codegen option `lto` takes no value' $(RUSTC) -C lto dummy.rs + + # Should not link dead code... + $(RUSTC) -Z print-link-args dummy.rs 2>&1 | \ + grep -e '--gc-sections\|-dead_strip\|/OPT:REF,ICF' + # ... unless you specifically ask to keep it + $(RUSTC) -Z print-link-args -C link-dead-code dummy.rs 2>&1 | \ + (! grep -e '--gc-sections\|-dead_strip\|/OPT:REF,ICF') |