diff options
| author | Zalathar <Zalathar@users.noreply.github.com> | 2025-01-16 12:53:46 +1100 |
|---|---|---|
| committer | Zalathar <Zalathar@users.noreply.github.com> | 2025-01-16 15:43:29 +1100 |
| commit | 2238b00dac093dce9614ead293cbc3fe66577787 (patch) | |
| tree | a097312f9503968714f9295e2cac4d31e75a5272 /compiler/rustc_session | |
| parent | 419b3e2d3e350822550eee0e82eeded4d324d584 (diff) | |
Update docs for `-Clink-dead-code` to discourage its use
Diffstat (limited to 'compiler/rustc_session')
| -rw-r--r-- | compiler/rustc_session/src/config.rs | 7 | ||||
| -rw-r--r-- | compiler/rustc_session/src/options.rs | 2 |
2 files changed, 1 insertions, 8 deletions
diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs index 5192ad61af2..21afb7df7cb 100644 --- a/compiler/rustc_session/src/config.rs +++ b/compiler/rustc_session/src/config.rs @@ -132,13 +132,6 @@ pub enum LtoCli { } /// The different settings that the `-C instrument-coverage` flag can have. -/// -/// Coverage instrumentation now supports combining `-C instrument-coverage` -/// with compiler and linker optimization (enabled with `-O` or `-C opt-level=1` -/// and higher). Nevertheless, there are many variables, depending on options -/// selected, code structure, and enabled attributes. If errors are encountered, -/// either while compiling or when generating `llvm-cov show` reports, consider -/// lowering the optimization level, or including/excluding `-C link-dead-code`. #[derive(Clone, Copy, PartialEq, Hash, Debug)] pub enum InstrumentCoverage { /// `-C instrument-coverage=no` (or `off`, `false` etc.) diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index 3af6df63017..63aaa3abc8e 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -1638,7 +1638,7 @@ options! { "extra arguments to append to the linker invocation (space separated)"), #[rustc_lint_opt_deny_field_access("use `Session::link_dead_code` instead of this field")] link_dead_code: Option<bool> = (None, parse_opt_bool, [TRACKED], - "keep dead code at link time (useful for code coverage) (default: no)"), + "try to generate and link dead code (default: no)"), link_self_contained: LinkSelfContained = (LinkSelfContained::default(), parse_link_self_contained, [UNTRACKED], "control whether to link Rust provided C objects/libraries or rely \ on a C toolchain or linker installed in the system"), |