a6f8b8a211
rustc now generates the coverage map and can support (limited)
coverage report generation, at the function level.
Example:
$ BUILD=$HOME/rust/build/x86_64-unknown-linux-gnu
$ $BUILD/stage1/bin/rustc -Zinstrument-coverage \
$HOME/rust/src/test/run-make-fulldeps/instrument-coverage/main.rs
$ LLVM_PROFILE_FILE="main.profraw" ./main
called
$ $BUILD/llvm/bin/llvm-profdata merge -sparse main.profraw -o main.profdata
$ $BUILD/llvm/bin/llvm-cov show --instr-profile=main.profdata main
1| 1|pub fn will_be_called() {
2| 1| println!("called");
3| 1|}
4| |
5| 0|pub fn will_not_be_called() {
6| 0| println!("should not have been called");
7| 0|}
8| |
9| 1|fn main() {
10| 1| let less = 1;
11| 1| let more = 100;
12| 1|
13| 1| if less < more {
14| 1| will_be_called();
15| 1| } else {
16| 1| will_not_be_called();
17| 1| }
18| 1|}
|
||
|---|---|---|
| .. | ||
| bootstrap | ||
| build_helper | ||
| ci | ||
| doc | ||
| etc | ||
| liballoc | ||
| libcore | ||
| libpanic_abort | ||
| libpanic_unwind | ||
| libproc_macro | ||
| libprofiler_builtins | ||
| librustc_apfloat | ||
| librustc_arena | ||
| librustc_ast | ||
| librustc_ast_lowering | ||
| librustc_ast_passes | ||
| librustc_ast_pretty | ||
| librustc_attr | ||
| librustc_builtin_macros | ||
| librustc_codegen_llvm | ||
| librustc_codegen_ssa | ||
| librustc_data_structures | ||
| librustc_driver | ||
| librustc_error_codes | ||
| librustc_errors | ||
| librustc_expand | ||
| librustc_feature | ||
| librustc_fs_util | ||
| librustc_graphviz | ||
| librustc_hir | ||
| librustc_hir_pretty | ||
| librustc_incremental | ||
| librustc_index | ||
| librustc_infer | ||
| librustc_interface | ||
| librustc_lexer | ||
| librustc_lint | ||
| librustc_llvm | ||
| librustc_macros | ||
| librustc_metadata | ||
| librustc_middle | ||
| librustc_mir | ||
| librustc_mir_build | ||
| librustc_parse | ||
| librustc_parse_format | ||
| librustc_passes | ||
| librustc_plugin_impl | ||
| librustc_privacy | ||
| librustc_query_system | ||
| librustc_resolve | ||
| librustc_save_analysis | ||
| librustc_serialize | ||
| librustc_session | ||
| librustc_span | ||
| librustc_symbol_mangling | ||
| librustc_target | ||
| librustc_trait_selection | ||
| librustc_traits | ||
| librustc_ty | ||
| librustc_typeck | ||
| librustdoc | ||
| libstd | ||
| libterm | ||
| libtest | ||
| libunwind | ||
| llvm-project@86b120e6f3 | ||
| rtstartup | ||
| rustc | ||
| rustllvm | ||
| stdarch@45340c0e2f | ||
| test | ||
| tools | ||
| README.md | ||
| stage0.txt | ||
This directory contains the source code of the rust project, including:
rustcand its testslibstd- Various submodules for tools, like rustdoc, rls, etc.
For more information on how various parts of the compiler work, see the rustc dev guide.