rust/library/profiler_builtins/src/lib.rs

// tidy-alphabetical-start
#![allow(internal_features)]
#![feature(no_core)]
#![feature(profiler_runtime)]
#![feature(staged_api)]
// tidy-alphabetical-end

// Other attributes:
#![no_core]
#![profiler_runtime]
#![unstable(
    feature = "profiler_runtime_lib",
    reason = "internal implementation detail of rustc right now",
    issue = "none"
)]
Sort and separate lint/feature attributes in `profiler_builtins` 2024-11-23 16:11:02 +11:00			`// tidy-alphabetical-start`
			`#![allow(internal_features)]`
Make profiler_builtins `#![no_core]` instead of just `#![no_std]` This crate doesn't contain any actual Rust code; it's just C/C++ code built and packaged in a Rust-friendly way. 2024-11-23 16:14:40 +11:00			`#![feature(no_core)]`
Bump master to 1.21.0 This commit bumps the master branch's version to 1.21.0 and also updates the bootstrap compiler from the freshly minted beta release. 2017-07-17 09:32:08 -07:00			`#![feature(profiler_runtime)]`
Sort and separate lint/feature attributes in `profiler_builtins` 2024-11-23 16:11:02 +11:00			`#![feature(staged_api)]`
			`// tidy-alphabetical-end`

			`// Other attributes:`
Make profiler_builtins `#![no_core]` instead of just `#![no_std]` This crate doesn't contain any actual Rust code; it's just C/C++ code built and packaged in a Rust-friendly way. 2024-11-23 16:14:40 +11:00			`#![no_core]`
Bump master to 1.21.0 This commit bumps the master branch's version to 1.21.0 and also updates the bootstrap compiler from the freshly minted beta release. 2017-07-17 09:32:08 -07:00			`#![profiler_runtime]`
Add profiling support, through the rustc -Z profile flag. When -Z profile is passed, the GCDAProfiling LLVM pass is added to the pipeline, which uses debug information to instrument the IR. After compiling with -Z profile, the $(OUT_DIR)/$(CRATE_NAME).gcno file is created, containing initial profiling information. After running the program built, the $(OUT_DIR)/$(CRATE_NAME).gcda file is created, containing branch counters. The created .gcno and .gcda files can be processed using the "llvm-cov gcov" and "lcov" tools. The profiling data LLVM generates does not faithfully follow the GCC's format for .gcno and .gcda files, and so it will probably not work with other tools (such as gcov itself) that consume these files. 2017-02-13 09:57:50 +00:00			`#![unstable(`
			`feature = "profiler_runtime_lib",`
			`reason = "internal implementation detail of rustc right now",`
Require issue = "none" over issue = "0" in unstable attributes 2019-12-21 13:16:18 +02:00			`issue = "none"`
			`)]`