| // Copyright 2017 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| //! Compiles the profiler part of the `compiler-rt` library. |
| //! |
| //! See the build.rs for libcompiler_builtins crate for details. |
| |
| extern crate cc; |
| |
| use std::env; |
| use std::path::Path; |
| |
| fn main() { |
| let target = env::var("TARGET").expect("TARGET was not set"); |
| let cfg = &mut cc::Build::new(); |
| |
| let mut profile_sources = vec!["GCDAProfiling.c", |
| "InstrProfiling.c", |
| "InstrProfilingBuffer.c", |
| "InstrProfilingFile.c", |
| "InstrProfilingMerge.c", |
| "InstrProfilingMergeFile.c", |
| "InstrProfilingNameVar.c", |
| "InstrProfilingPlatformDarwin.c", |
| "InstrProfilingPlatformLinux.c", |
| "InstrProfilingPlatformOther.c", |
| "InstrProfilingRuntime.cc", |
| "InstrProfilingUtil.c", |
| "InstrProfilingValue.c", |
| "InstrProfilingWriter.c"]; |
| |
| if target.contains("msvc") { |
| // Don't pull in extra libraries on MSVC |
| cfg.flag("/Zl"); |
| profile_sources.push("WindowsMMap.c"); |
| cfg.define("strdup", Some("_strdup")); |
| cfg.define("open", Some("_open")); |
| cfg.define("fdopen", Some("_fdopen")); |
| cfg.define("getpid", Some("_getpid")); |
| cfg.define("fileno", Some("_fileno")); |
| } else { |
| // Turn off various features of gcc and such, mostly copying |
| // compiler-rt's build system already |
| cfg.flag("-fno-builtin"); |
| cfg.flag("-fvisibility=hidden"); |
| cfg.flag("-fomit-frame-pointer"); |
| cfg.flag("-ffreestanding"); |
| cfg.define("VISIBILITY_HIDDEN", None); |
| cfg.define("COMPILER_RT_HAS_UNAME", Some("1")); |
| } |
| |
| // The source for `compiler-rt` comes from the `compiler-builtins` crate, so |
| // load our env var set by cargo to find the source code. |
| let root = env::var_os("DEP_COMPILER_RT_COMPILER_RT").unwrap(); |
| let root = Path::new(&root); |
| |
| for src in profile_sources { |
| cfg.file(root.join("lib").join("profile").join(src)); |
| } |
| |
| cfg.warnings(false); |
| cfg.compile("profiler-rt"); |
| } |