00dff0aa59
ASan and TSan are supported on macOS, and this commit enables their
support.
The sanitizers are always built as *.dylib on Apple platforms, so they
cannot be statically linked into the corresponding `rustc_?san.rlib`. The
dylibs are directly copied to `lib/rustlib/x86_64-apple-darwin/lib/`
instead.
Note, although Xcode also ships with their own copies of ASan/TSan dylibs,
we cannot use them due to version mismatch.
There is a caveat: the sanitizer libraries are linked as @rpath, so the
user needs to additionally pass `-C rpath`:
rustc -Z sanitizer=address -C rpath file.rs
^~~~~~~~
Otherwise there will be a runtime error:
dyld: Library not loaded: @rpath/libclang_rt.asan_osx_dynamic.dylib
Referenced from: /path/to/executable
Reason: image not found
Abort trap: 6
The next commit includes a temporary change in compiler to force the linker
to emit a usable @rpath.
36 lines
1.1 KiB
Rust
36 lines
1.1 KiB
Rust
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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extern crate build_helper;
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extern crate cmake;
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use std::env;
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use build_helper::sanitizer_lib_boilerplate;
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use cmake::Config;
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fn main() {
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if let Some(llvm_config) = env::var_os("LLVM_CONFIG") {
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let native = match sanitizer_lib_boilerplate("msan") {
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Ok(native) => native,
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_ => return,
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};
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Config::new(&native.src_dir)
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.define("COMPILER_RT_BUILD_SANITIZERS", "ON")
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.define("COMPILER_RT_BUILD_BUILTINS", "OFF")
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.define("COMPILER_RT_BUILD_XRAY", "OFF")
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.define("LLVM_CONFIG_PATH", llvm_config)
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.out_dir(&native.out_dir)
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.build_target("msan")
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.build();
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}
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}
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