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| author | bors <bors@rust-lang.org> | 2017-01-27 10:01:45 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2017-01-27 10:01:45 +0000 |
| commit | 8367fb7ba6abae89ab7e17c1b3987ee321f5bb71 (patch) | |
| tree | 21b4f4f8b07ec2058229ef9dbbb316a7155fd1b8 /src/libstd | |
| parent | fece9c735678d152da721711f6f4aba1f0b8ab15 (diff) | |
| parent | 3d6f263b2a162974725cdcb914ba9ad9c2dbef84 (diff) | |
| download | rust-8367fb7ba6abae89ab7e17c1b3987ee321f5bb71.tar.gz rust-8367fb7ba6abae89ab7e17c1b3987ee321f5bb71.zip | |
Auto merge of #39252 - alexcrichton:less-exports, r=nrc
Hide a few more standard library symbols These commits touch up some of the symbol visibility rules for some crates related to the standard library, notably: * Symbols that are `pub extern` and `#[no_mangle]` which are internal-to-rust ABI things are no longer at the `C` export level, but the `Rust` export level. This includes allocators, panic runtimes, and compiler builtins. * The libbacktrace library is now compiled with `-fvisibility=hidden` to ensure that we don't export those symbols.
Diffstat (limited to 'src/libstd')
| -rw-r--r-- | src/libstd/build.rs | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/libstd/build.rs b/src/libstd/build.rs index 5e1c3a28515..9504194393f 100644 --- a/src/libstd/build.rs +++ b/src/libstd/build.rs @@ -87,8 +87,9 @@ fn build_libbacktrace(host: &str, target: &str) { let compiler = gcc::Config::new().get_compiler(); // only msvc returns None for ar so unwrap is okay let ar = build_helper::cc2ar(compiler.path(), target).unwrap(); - let cflags = compiler.args().iter().map(|s| s.to_str().unwrap()) - .collect::<Vec<_>>().join(" "); + let mut cflags = compiler.args().iter().map(|s| s.to_str().unwrap()) + .collect::<Vec<_>>().join(" "); + cflags.push_str(" -fvisibility=hidden"); run(Command::new("sh") .current_dir(&build_dir) .arg(src_dir.join("configure").to_str().unwrap() |