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-rw-r--r--gcc/.travis.yml2
-rw-r--r--gcc/Cargo.toml6
-rw-r--r--gcc/README.md14
-rw-r--r--gcc/appveyor.yml20
-rw-r--r--gcc/gcc-test/build.rs32
-rw-r--r--gcc/src/lib.rs891
-rw-r--r--gcc/src/winapi.rs4
-rw-r--r--gcc/src/windows_registry.rs21
-rw-r--r--gcc/tests/support/mod.rs6
-rw-r--r--gcc/tests/test.rs128
10 files changed, 863 insertions, 261 deletions
diff --git a/gcc/.travis.yml b/gcc/.travis.yml
index ff57da5..0f0a094 100644
--- a/gcc/.travis.yml
+++ b/gcc/.travis.yml
@@ -6,7 +6,7 @@ rust:
matrix:
include:
# Minimum version supported
- - rust: 1.6.0
+ - rust: 1.13.0
install:
script: cargo build
diff --git a/gcc/Cargo.toml b/gcc/Cargo.toml
index 45acf07..81b8007 100644
--- a/gcc/Cargo.toml
+++ b/gcc/Cargo.toml
@@ -1,7 +1,7 @@
[package]
name = "gcc"
-version = "0.3.48"
+version = "0.3.54"
authors = ["Alex Crichton <alex@alexcrichton.com>"]
license = "MIT/Apache-2.0"
repository = "https://github.com/alexcrichton/gcc-rs"
@@ -12,13 +12,15 @@ C compiler to compile native C code into a static archive to be linked into Rust
code.
"""
keywords = ["build-dependencies"]
+readme = "README.md"
+categories = ["development-tools"]
[badges]
travis-ci = { repository = "alexcrichton/gcc-rs" }
appveyor = { repository = "alexcrichton/gcc-rs" }
[dependencies]
-rayon = { version = "0.7", optional = true }
+rayon = { version = "0.8", optional = true }
[features]
parallel = ["rayon"]
diff --git a/gcc/README.md b/gcc/README.md
index 2d3e5ed..06bfa27 100644
--- a/gcc/README.md
+++ b/gcc/README.md
@@ -35,13 +35,17 @@ Next up, you'll want to write a build script like so:
extern crate gcc;
fn main() {
- gcc::compile_library("libfoo.a", &["foo.c", "bar.c"]);
+ gcc::Build::new()
+ .file("foo.c")
+ .file("bar.c")
+ .compile("foo");
}
```
And that's it! Running `cargo build` should take care of the rest and your Rust
-application will now have the C files `foo.c` and `bar.c` compiled into it. You
-can call the functions in Rust by declaring functions in your Rust code like so:
+application will now have the C files `foo.c` and `bar.c` compiled into a file
+named libfoo.a. You can call the functions in Rust by declaring functions in
+your Rust code like so:
```
extern {
@@ -137,13 +141,13 @@ required varies per platform, but there are three broad categories:
## C++ support
`gcc-rs` supports C++ libraries compilation by using the `cpp` method on
-`Config`:
+`Build`:
```rust,no_run
extern crate gcc;
fn main() {
- gcc::Config::new()
+ gcc::Build::new()
.cpp(true) // Switch to C++ library compilation.
.file("foo.cpp")
.compile("libfoo.a");
diff --git a/gcc/appveyor.yml b/gcc/appveyor.yml
index f6108c6..aa1edb5 100644
--- a/gcc/appveyor.yml
+++ b/gcc/appveyor.yml
@@ -1,4 +1,24 @@
environment:
+
+ # At the time this was added AppVeyor was having troubles with checking
+ # revocation of SSL certificates of sites like static.rust-lang.org and what
+ # we think is crates.io. The libcurl HTTP client by default checks for
+ # revocation on Windows and according to a mailing list [1] this can be
+ # disabled.
+ #
+ # The `CARGO_HTTP_CHECK_REVOKE` env var here tells cargo to disable SSL
+ # revocation checking on Windows in libcurl. Note, though, that rustup, which
+ # we're using to download Rust here, also uses libcurl as the default backend.
+ # Unlike Cargo, however, rustup doesn't have a mechanism to disable revocation
+ # checking. To get rustup working we set `RUSTUP_USE_HYPER` which forces it to
+ # use the Hyper instead of libcurl backend. Both Hyper and libcurl use
+ # schannel on Windows but it appears that Hyper configures it slightly
+ # differently such that revocation checking isn't turned on by default.
+ #
+ # [1]: https://curl.haxx.se/mail/lib-2016-03/0202.html
+ RUSTUP_USE_HYPER: 1
+ CARGO_HTTP_CHECK_REVOKE: false
+
matrix:
- TARGET: x86_64-pc-windows-msvc
ARCH: amd64
diff --git a/gcc/gcc-test/build.rs b/gcc/gcc-test/build.rs
index f81833b..e6308ed 100644
--- a/gcc/gcc-test/build.rs
+++ b/gcc/gcc-test/build.rs
@@ -9,36 +9,38 @@ fn main() {
fs::remove_dir_all(&out).unwrap();
fs::create_dir(&out).unwrap();
- gcc::Config::new()
+ gcc::Build::new()
.file("src/foo.c")
+ .flag_if_supported("-Wall")
+ .flag_if_supported("-Wfoo-bar-this-flag-does-not-exist")
.define("FOO", None)
- .define("BAR", Some("1"))
- .compile("libfoo.a");
+ .define("BAR", "1")
+ .compile("foo");
- gcc::Config::new()
+ gcc::Build::new()
.file("src/bar1.c")
.file("src/bar2.c")
.include("src/include")
- .compile("libbar.a");
+ .compile("bar");
let target = std::env::var("TARGET").unwrap();
let file = target.split("-").next().unwrap();
let file = format!("src/{}.{}",
file,
if target.contains("msvc") { "asm" } else { "S" });
- gcc::Config::new()
+ gcc::Build::new()
.file(file)
- .compile("libasm.a");
+ .compile("asm");
- gcc::Config::new()
+ gcc::Build::new()
.file("src/baz.cpp")
.cpp(true)
- .compile("libbaz.a");
+ .compile("baz");
if target.contains("windows") {
- gcc::Config::new()
+ gcc::Build::new()
.file("src/windows.c")
- .compile("libwindows.a");
+ .compile("windows");
}
// Test that the `windows_registry` module will set PATH by looking for
@@ -50,6 +52,7 @@ fn main() {
println!("nmake 1");
let status = gcc::windows_registry::find(&target, "nmake.exe")
.unwrap()
+ .env_remove("MAKEFLAGS")
.arg("/fsrc/NMakefile")
.env("OUT_DIR", &out)
.status()
@@ -66,6 +69,7 @@ fn main() {
println!("nmake 2");
let status = gcc::windows_registry::find(&target, "nmake.exe")
.unwrap()
+ .env_remove("MAKEFLAGS")
.arg("/fsrc/NMakefile")
.env("OUT_DIR", &out)
.status()
@@ -77,12 +81,12 @@ fn main() {
// This tests whether we can build a library but not link it to the main
// crate. The test module will do its own linking.
- gcc::Config::new()
+ gcc::Build::new()
.cargo_metadata(false)
.file("src/opt_linkage.c")
- .compile("libOptLinkage.a");
+ .compile("OptLinkage");
- let out = gcc::Config::new()
+ let out = gcc::Build::new()
.file("src/expand.c")
.expand();
let out = String::from_utf8(out).unwrap();
diff --git a/gcc/src/lib.rs b/gcc/src/lib.rs
index 7d19e13..4c5e724 100644
--- a/gcc/src/lib.rs
+++ b/gcc/src/lib.rs
@@ -10,35 +10,30 @@
//!
//! The purpose of this crate is to provide the utility functions necessary to
//! compile C code into a static archive which is then linked into a Rust crate.
-//! The top-level `compile_library` function serves as a convenience and more
-//! advanced configuration is available through the `Config` builder.
+//! Configuration is available through the `Build` struct.
//!
//! This crate will automatically detect situations such as cross compilation or
//! other environment variables set by Cargo and will build code appropriately.
//!
-//! # Examples
-//!
-//! Use the default configuration:
+//! The crate is not limited to C code, it can accept any source code that can
+//! be passed to a C or C++ compiler. As such, assembly files with extensions
+//! `.s` (gcc/clang) and `.asm` (MSVC) can also be compiled.
//!
-//! ```no_run
-//! extern crate gcc;
+//! [`Build`]: struct.Build.html
//!
-//! fn main() {
-//! gcc::compile_library("libfoo.a", &["src/foo.c"]);
-//! }
-//! ```
+//! # Examples
//!
-//! Use more advanced configuration:
+//! Use the `Build` struct to compile `src/foo.c`:
//!
//! ```no_run
//! extern crate gcc;
//!
//! fn main() {
-//! gcc::Config::new()
-//! .file("src/foo.c")
-//! .define("FOO", Some("bar"))
-//! .include("src")
-//! .compile("libfoo.a");
+//! gcc::Build::new()
+//! .file("src/foo.c")
+//! .define("FOO", Some("bar"))
+//! .include("src")
+//! .compile("foo");
//! }
//! ```
@@ -57,6 +52,13 @@ use std::process::{Command, Stdio, Child};
use std::io::{self, BufReader, BufRead, Read, Write};
use std::thread::{self, JoinHandle};
+#[doc(hidden)]
+#[deprecated(since="0.3.51", note="gcc::Config has been renamed to gcc::Build")]
+pub type Config = Build;
+
+#[cfg(feature = "parallel")]
+use std::sync::Mutex;
+
// These modules are all glue to support reading the MSVC version from
// the registry and from COM interfaces
#[cfg(windows)]
@@ -72,11 +74,13 @@ mod setup_config;
pub mod windows_registry;
/// Extra configuration to pass to gcc.
-pub struct Config {
+#[derive(Clone, Debug)]
+pub struct Build {
include_directories: Vec<PathBuf>,
definitions: Vec<(String, Option<String>)>,
objects: Vec<PathBuf>,
flags: Vec<String>,
+ flags_supported: Vec<String>,
files: Vec<PathBuf>,
cpp: bool,
cpp_link_stdlib: Option<Option<String>>,
@@ -92,6 +96,46 @@ pub struct Config {
cargo_metadata: bool,
pic: Option<bool>,
static_crt: Option<bool>,
+ shared_flag: Option<bool>,
+ static_flag: Option<bool>,
+ warnings_into_errors: bool,
+ warnings: bool,
+}
+
+/// Represents the types of errors that may occur while using gcc-rs.
+#[derive(Clone, Debug)]
+enum ErrorKind {
+ /// Error occurred while performing I/O.
+ IOError,
+ /// Invalid architecture supplied.
+ ArchitectureInvalid,
+ /// Environment variable not found, with the var in question as extra info.
+ EnvVarNotFound,
+ /// Error occurred while using external tools (ie: invocation of compiler).
+ ToolExecError,
+ /// Error occurred due to missing external tools.
+ ToolNotFound,
+}
+
+/// Represents an internal error that occurred, with an explaination.
+#[derive(Clone, Debug)]
+pub struct Error {
+ /// Describes the kind of error that occurred.
+ kind: ErrorKind,
+ /// More explaination of error that occurred.
+ message: String,
+}
+
+impl Error {
+ fn new(kind: ErrorKind, message: &str) -> Error {
+ Error { kind: kind, message: message.to_owned() }
+ }
+}
+
+impl From<io::Error> for Error {
+ fn from(e: io::Error) -> Error {
+ Error::new(ErrorKind::IOError, &format!("{}", e))
+ }
}
/// Configuration used to represent an invocation of a C compiler.
@@ -101,6 +145,7 @@ pub struct Config {
/// This can be used to further configure other build systems (e.g. forward
/// along CC and/or CFLAGS) or the `to_command` method can be used to run the
/// compiler itself.
+#[derive(Clone, Debug)]
pub struct Tool {
path: PathBuf,
args: Vec<OsString>,
@@ -113,7 +158,7 @@ pub struct Tool {
/// Each family of tools differs in how and what arguments they accept.
///
/// Detection of a family is done on best-effort basis and may not accurately reflect the tool.
-#[derive(Copy, Clone, Debug)]
+#[derive(Copy, Clone, Debug, PartialEq)]
enum ToolFamily {
/// Tool is GNU Compiler Collection-like.
Gnu,
@@ -151,6 +196,27 @@ impl ToolFamily {
ToolFamily::Clang => "-E",
}
}
+
+ /// What the flags to enable all warnings
+ fn warnings_flags(&self) -> &'static [&'static str] {
+ static MSVC_FLAGS: &'static [&'static str] = &["/W4"];
+ static GNU_CLANG_FLAGS: &'static [&'static str] = &["-Wall", "-Wextra"];
+
+ match *self {
+ ToolFamily::Msvc => &MSVC_FLAGS,
+ ToolFamily::Gnu |
+ ToolFamily::Clang => &GNU_CLANG_FLAGS,
+ }
+ }
+
+ /// What the flag to turn warning into errors
+ fn warnings_to_errors_flag(&self) -> &'static str {
+ match *self {
+ ToolFamily::Msvc => "/WX",
+ ToolFamily::Gnu |
+ ToolFamily::Clang => "-Werror"
+ }
+ }
}
/// Compile a library from the given set of input C files.
@@ -164,27 +230,34 @@ impl ToolFamily {
/// # Example
///
/// ```no_run
-/// gcc::compile_library("libfoo.a", &["foo.c", "bar.c"]);
+/// gcc::compile_library("foo", &["foo.c", "bar.c"]);
/// ```
+#[deprecated]
+#[doc(hidden)]
pub fn compile_library(output: &str, files: &[&str]) {
- let mut c = Config::new();
+ let mut c = Build::new();
for f in files.iter() {
c.file(*f);
}
c.compile(output);
}
-impl Config {
+impl Build {
/// Construct a new instance of a blank set of configuration.
///
- /// This builder is finished with the `compile` function.
- pub fn new() -> Config {
- Config {
+ /// This builder is finished with the [`compile`] function.
+ ///
+ /// [`compile`]: struct.Build.html#method.compile
+ pub fn new() -> Build {
+ Build {
include_directories: Vec::new(),
definitions: Vec::new(),
objects: Vec::new(),
flags: Vec::new(),
+ flags_supported: Vec::new(),
files: Vec::new(),
+ shared_flag: None,
+ static_flag: None,
cpp: false,
cpp_link_stdlib: None,
cpp_set_stdlib: None,
@@ -199,48 +272,229 @@ impl Config {
cargo_metadata: true,
pic: None,
static_crt: None,
+ warnings: true,
+ warnings_into_errors: false,
}
}
/// Add a directory to the `-I` or include path for headers
- pub fn include<P: AsRef<Path>>(&mut self, dir: P) -> &mut Config {
+ ///
+ /// # Example
+ ///
+ /// ```no_run
+ /// use std::path::Path;
+ ///
+ /// let library_path = Path::new("/path/to/library");
+ ///
+ /// gcc::Build::new()
+ /// .file("src/foo.c")
+ /// .include(library_path)
+ /// .include("src")
+ /// .compile("foo");
+ /// ```
+ pub fn include<P: AsRef<Path>>(&mut self, dir: P) -> &mut Build {
self.include_directories.push(dir.as_ref().to_path_buf());
self
}
/// Specify a `-D` variable with an optional value.
- pub fn define(&mut self, var: &str, val: Option<&str>) -> &mut Config {
- self.definitions.push((var.to_string(), val.map(|s| s.to_string())));
+ ///
+ /// # Example
+ ///
+ /// ```no_run
+ /// gcc::Build::new()
+ /// .file("src/foo.c")
+ /// .define("FOO", "BAR")
+ /// .define("BAZ", None)
+ /// .compile("foo");
+ /// ```
+ pub fn define<'a, V: Into<Option<&'a str>>>(&mut self, var: &str, val: V) -> &mut Build {
+ self.definitions.push((var.to_string(), val.into().map(|s| s.to_string())));
self
}
/// Add an arbitrary object file to link in
- pub fn object<P: AsRef<Path>>(&mut self, obj: P) -> &mut Config {
+ pub fn object<P: AsRef<Path>>(&mut self, obj: P) -> &mut Build {
self.objects.push(obj.as_ref().to_path_buf());
self
}
/// Add an arbitrary flag to the invocation of the compiler
- pub fn flag(&mut self, flag: &str) -> &mut Config {
+ ///
+ /// # Example
+ ///
+ /// ```no_run
+ /// gcc::Build::new()
+ /// .file("src/foo.c")
+ /// .flag("-ffunction-sections")
+ /// .compile("foo");
+ /// ```
+ pub fn flag(&mut self, flag: &str) -> &mut Build {
self.flags.push(flag.to_string());
self
}
+ fn ensure_check_file(&self) -> Result<PathBuf, Error> {
+ let out_dir = self.get_out_dir()?;
+ let src = if self.cpp {
+ out_dir.join("flag_check.cpp")
+ } else {
+ out_dir.join("flag_check.c")
+ };
+
+ if !src.exists() {
+ let mut f = fs::File::create(&src)?;
+ write!(f, "int main(void) {{ return 0; }}")?;
+ }
+
+ Ok(src)
+ }
+
+ fn is_flag_supported(&self, flag: &str) -> Result<bool, Error> {
+ let out_dir = self.get_out_dir()?;
+ let src = self.ensure_check_file()?;
+ let obj = out_dir.join("flag_check");
+ let target = self.get_target()?;
+ let mut cfg = Build::new();
+ cfg.flag(flag)
+ .target(&target)
+ .opt_level(0)
+ .host(&target)
+ .debug(false)
+ .cpp(self.cpp);
+ let compiler = cfg.try_get_compiler()?;
+ let mut cmd = compiler.to_command();
+ command_add_output_file(&mut cmd, &obj, target.contains("msvc"), false);
+ cmd.arg(&src);
+
+ let output = cmd.output()?;
+ Ok(output.stderr.is_empty())
+ }
+
+ /// Add an arbitrary flag to the invocation of the compiler if it supports it
+ ///
+ /// # Example
+ ///
+ /// ```no_run
+ /// gcc::Build::new()
+ /// .file("src/foo.c")
+ /// .flag_if_supported("-Wlogical-op") // only supported by GCC
+ /// .flag_if_supported("-Wunreachable-code") // only supported by clang
+ /// .compile("foo");
+ /// ```
+ pub fn flag_if_supported(&mut self, flag: &str) -> &mut Build {
+ self.flags_supported.push(flag.to_string());
+ self
+ }
+
+ /// Set the `-shared` flag.
+ ///
+ /// When enabled, the compiler will produce a shared object which can
+ /// then be linked with other objects to form an executable.
+ ///
+ /// # Example
+ ///
+ /// ```no_run
+ /// gcc::Build::new()
+ /// .file("src/foo.c")
+ /// .shared_flag(true)
+ /// .compile("libfoo.so");
+ /// ```
+
+ pub fn shared_flag(&mut self, shared_flag: bool) -> &mut Build {
+ self.shared_flag = Some(shared_flag);
+ self
+ }
+
+ /// Set the `-static` flag.
+ ///
+ /// When enabled on systems that support dynamic linking, this prevents
+ /// linking with the shared libraries.
+ ///
+ /// # Example
+ ///
+ /// ```no_run
+ /// gcc::Build::new()
+ /// .file("src/foo.c")
+ /// .shared_flag(true)
+ /// .static_flag(true)
+ /// .compile("foo");
+ /// ```
+ pub fn static_flag(&mut self, static_flag: bool) -> &mut Build {
+ self.static_flag = Some(static_flag);
+ self
+ }
+
/// Add a file which will be compiled
- pub fn file<P: AsRef<Path>>(&mut self, p: P) -> &mut Config {
+ pub fn file<P: AsRef<Path>>(&mut self, p: P) -> &mut Build {
self.files.push(p.as_ref().to_path_buf());
self
}
+ /// Add files which will be compiled
+ pub fn files<P>(&mut self, p: P) -> &mut Build
+ where P: IntoIterator,
+ P::Item: AsRef<Path> {
+ for file in p.into_iter() {
+ self.file(file);
+ }
+ self
+ }
+
/// Set C++ support.
///
/// The other `cpp_*` options will only become active if this is set to
/// `true`.
- pub fn cpp(&mut self, cpp: bool) -> &mut Config {
+ pub fn cpp(&mut self, cpp: bool) -> &mut Build {
self.cpp = cpp;
self
}
+ /// Set warnings into errors flag.
+ ///
+ /// Disabled by default.
+ ///
+ /// Warning: turning warnings into errors only make sense
+ /// if you are a developer of the crate using gcc-rs.
+ /// Some warnings only appear on some architecture or
+ /// specific version of the compiler. Any user of this crate,
+ /// or any other crate depending on it, could fail during
+ /// compile time.
+ ///
+ /// # Example
+ ///
+ /// ```no_run
+ /// gcc::Build::new()
+ /// .file("src/foo.c")
+ /// .warnings_into_errors(true)
+ /// .compile("libfoo.a");
+ /// ```
+ pub fn warnings_into_errors(&mut self, warnings_into_errors: bool) -> &mut Build {
+ self.warnings_into_errors = warnings_into_errors;
+ self
+ }
+
+ /// Set warnings flags.
+ ///
+ /// Adds some flags:
+ /// - "/Wall" for MSVC.
+ /// - "-Wall", "-Wextra" for GNU and Clang.
+ ///
+ /// Enabled by default.
+ ///
+ /// # Example
+ ///
+ /// ```no_run
+ /// gcc::Build::new()
+ /// .file("src/foo.c")
+ /// .warnings(false)
+ /// .compile("libfoo.a");
+ /// ```
+ pub fn warnings(&mut self, warnings: bool) -> &mut Build {
+ self.warnings = warnings;
+ self
+ }
+
/// Set the standard library to link against when compiling with C++
/// support.
///
@@ -252,8 +506,22 @@ impl Config {
/// otherwise cargo will link against the specified library.
///
/// The given library name must not contain the `lib` prefix.
- pub fn cpp_link_stdlib(&mut self, cpp_link_stdlib: Option<&str>) -> &mut Config {
- self.cpp_link_stdlib = Some(cpp_link_stdlib.map(|s| s.into()));
+ ///
+ /// Common values:
+ /// - `stdc++` for GNU
+ /// - `c++` for Clang
+ ///
+ /// # Example
+ ///
+ /// ```no_run
+ /// gcc::Build::new()
+ /// .file("src/foo.c")
+ /// .shared_flag(true)
+ /// .cpp_link_stdlib("stdc++")
+ /// .compile("libfoo.so");
+ /// ```
+ pub fn cpp_link_stdlib<'a, V: Into<Option<&'a str>>>(&mut self, cpp_link_stdlib: V) -> &mut Build {
+ self.cpp_link_stdlib = Some(cpp_link_stdlib.into().map(|s| s.into()));
self
}
@@ -277,7 +545,21 @@ impl Config {
/// be used, otherwise `-stdlib` is added to the compile invocation.
///
/// The given library name must not contain the `lib` prefix.
- pub fn cpp_set_stdlib(&mut self, cpp_set_stdlib: Option<&str>) -> &mut Config {
+ ///
+ /// Common values:
+ /// - `stdc++` for GNU
+ /// - `c++` for Clang
+ ///
+ /// # Example
+ ///
+ /// ```no_run
+ /// gcc::Build::new()
+ /// .file("src/foo.c")
+ /// .cpp_set_stdlib("c++")
+ /// .compile("libfoo.a");
+ /// ```
+ pub fn cpp_set_stdlib<'a, V: Into<Option<&'a str>>>(&mut self, cpp_set_stdlib: V) -> &mut Build {
+ let cpp_set_stdlib = cpp_set_stdlib.into();
self.cpp_set_stdlib = cpp_set_stdlib.map(|s| s.into());
self.cpp_link_stdlib(cpp_set_stdlib);
self
@@ -287,7 +569,16 @@ impl Config {
///
/// This option is automatically scraped from the `TARGET` environment
/// variable by build scripts, so it's not required to call this function.
- pub fn target(&mut self, target: &str) -> &mut Config {
+ ///
+ /// # Example
+ ///
+ /// ```no_run
+ /// gcc::Build::new()
+ /// .file("src/foo.c")
+ /// .target("aarch64-linux-android")
+ /// .compile("foo");
+ /// ```
+ pub fn target(&mut self, target: &str) -> &mut Build {
self.target = Some(target.to_string());
self
}
@@ -296,7 +587,16 @@ impl Config {
///
/// This option is automatically scraped from the `HOST` environment
/// variable by build scripts, so it's not required to call this function.
- pub fn host(&mut self, host: &str) -> &mut Config {
+ ///
+ /// # Example
+ ///
+ /// ```no_run
+ /// gcc::Build::new()
+ /// .file("src/foo.c")
+ /// .host("arm-linux-gnueabihf")
+ /// .compile("foo");
+ /// ```
+ pub fn host(&mut self, host: &str) -> &mut Build {
self.host = Some(host.to_string());
self
}
@@ -305,7 +605,7 @@ impl Config {
///
/// This option is automatically scraped from the `OPT_LEVEL` environment
/// variable by build scripts, so it's not required to call this function.
- pub fn opt_level(&mut self, opt_level: u32) -> &mut Config {
+ pub fn opt_level(&mut self, opt_level: u32) -> &mut Build {
self.opt_level = Some(opt_level.to_string());
self
}
@@ -314,7 +614,7 @@ impl Config {
///
/// This option is automatically scraped from the `OPT_LEVEL` environment
/// variable by build scripts, so it's not required to call this function.
- pub fn opt_level_str(&mut self, opt_level: &str) -> &mut Config {
+ pub fn opt_level_str(&mut self, opt_level: &str) -> &mut Build {
self.opt_level = Some(opt_level.to_string());
self
}
@@ -325,7 +625,7 @@ impl Config {
/// This option is automatically scraped from the `PROFILE` environment
/// variable by build scripts (only enabled when the profile is "debug"), so
/// it's not required to call this function.
- pub fn debug(&mut self, debug: bool) -> &mut Config {
+ pub fn debug(&mut self, debug: bool) -> &mut Build {
self.debug = Some(debug);
self
}
@@ -335,7 +635,7 @@ impl Config {
///
/// This option is automatically scraped from the `OUT_DIR` environment
/// variable by build scripts, so it's not required to call this function.
- pub fn out_dir<P: AsRef<Path>>(&mut self, out_dir: P) -> &mut Config {
+ pub fn out_dir<P: AsRef<Path>>(&mut self, out_dir: P) -> &mut Build {
self.out_dir = Some(out_dir.as_ref().to_owned());
self
}
@@ -345,7 +645,7 @@ impl Config {
/// This option is automatically determined from the target platform or a
/// number of environment variables, so it's not required to call this
/// function.
- pub fn compiler<P: AsRef<Path>>(&mut self, compiler: P) -> &mut Config {
+ pub fn compiler<P: AsRef<Path>>(&mut self, compiler: P) -> &mut Build {
self.compiler = Some(compiler.as_ref().to_owned());
self
}
@@ -355,13 +655,21 @@ impl Config {
/// This option is automatically determined from the target platform or a
/// number of environment variables, so it's not required to call this
/// function.
- pub fn archiver<P: AsRef<Path>>(&mut self, archiver: P) -> &mut Config {
+ pub fn archiver<P: AsRef<Path>>(&mut self, archiver: P) -> &mut Build {
self.archiver = Some(archiver.as_ref().to_owned());
self
}
/// Define whether metadata should be emitted for cargo allowing it to
/// automatically link the binary. Defaults to `true`.
- pub fn cargo_metadata(&mut self, cargo_metadata: bool) -> &mut Config {
+ ///
+ /// The emitted metadata is:
+ ///
+ /// - `rustc-link-lib=static=`*compiled lib*
+ /// - `rustc-link-search=native=`*target folder*
+ /// - When target is MSVC, the ATL-MFC libs are added via `rustc-link-search=native=`
+ /// - When C++ is enabled, the C++ stdlib is added via `rustc-link-lib`
+ ///
+ pub fn cargo_metadata(&mut self, cargo_metadata: bool) -> &mut Build {
self.cargo_metadata = cargo_metadata;
self
}
@@ -370,7 +678,7 @@ impl Config {
///
/// This option defaults to `false` for `windows-gnu` targets and
/// to `true` for all other targets.
- pub fn pic(&mut self, pic: bool) -> &mut Config {
+ pub fn pic(&mut self, pic: bool) -> &mut Build {
self.pic = Some(pic);
self
}
@@ -378,14 +686,13 @@ impl Config {
/// Configures whether the /MT flag or the /MD flag will be passed to msvc build tools.
///
/// This option defaults to `false`, and affect only msvc targets.
- pub fn static_crt(&mut self, static_crt: bool) -> &mut Config {
+ pub fn static_crt(&mut self, static_crt: bool) -> &mut Build {
self.static_crt = Some(static_crt);
self
}
-
#[doc(hidden)]
- pub fn __set_env<A, B>(&mut self, a: A, b: B) -> &mut Config
+ pub fn __set_env<A, B>(&mut self, a: A, b: B) -> &mut Build
where A: AsRef<OsStr>,
B: AsRef<OsStr>
{
@@ -395,31 +702,42 @@ impl Config {
/// Run the compiler, generating the file `output`
///
- /// The name `output` must begin with `lib` and end with `.a`
- pub fn compile(&self, output: &str) {
- assert!(output.starts_with("lib"));
- assert!(output.ends_with(".a"));
- let lib_name = &output[3..output.len() - 2];
- let dst = self.get_out_dir();
+ /// This will return a result instead of panicing; see compile() for the complete description.
+ pub fn try_compile(&self, output: &str) -> Result<(), Error> {
+ let (lib_name, gnu_lib_name) = if output.starts_with("lib") && output.ends_with(".a") {
+ (&output[3..output.len() - 2], output.to_owned())
+ } else {
+ let mut gnu = String::with_capacity(5 + output.len());
+ gnu.push_str("lib");
+ gnu.push_str(&output);
+ gnu.push_str(".a");
+ (output, gnu)
+ };
+ let dst = self.get_out_dir()?;
let mut objects = Vec::new();
let mut src_dst = Vec::new();
for file in self.files.iter() {
let obj = dst.join(file).with_extension("o");
let obj = if !obj.starts_with(&dst) {
- dst.join(obj.file_name().unwrap())
+ dst.join(obj.file_name().ok_or_else(|| Error::new(ErrorKind::IOError, "Getting object file details failed."))?)
} else {
obj
};
- fs::create_dir_all(&obj.parent().unwrap()).unwrap();
+
+ match obj.parent() {
+ Some(s) => fs::create_dir_all(s)?,
+ None => return Err(Error::new(ErrorKind::IOError, "Getting object file details failed.")),
+ };
+
src_dst.push((file.to_path_buf(), obj.clone()));
objects.push(obj);
}
- self.compile_objects(&src_dst);
- self.assemble(lib_name, &dst.join(output), &objects);
+ self.compile_objects(&src_dst)?;
+ self.assemble(lib_name, &dst.join(gnu_lib_name), &objects)?;
- if self.get_target().contains("msvc") {
- let compiler = self.get_base_compiler();
+ if self.get_target()?.contains("msvc") {
+ let compiler = self.get_base_compiler()?;
let atlmfc_lib = compiler.env()
.iter()
.find(|&&(ref var, _)| var.as_os_str() == OsStr::new("LIB"))
@@ -435,20 +753,39 @@ impl Config {
}
}
- self.print(&format!("cargo:rustc-link-lib=static={}",
- &output[3..output.len() - 2]));
+ self.print(&format!("cargo:rustc-link-lib=static={}", lib_name));
self.print(&format!("cargo:rustc-link-search=native={}", dst.display()));
// Add specific C++ libraries, if enabled.
if self.cpp {
- if let Some(stdlib) = self.get_cpp_link_stdlib() {
+ if let Some(stdlib) = self.get_cpp_link_stdlib()? {
self.print(&format!("cargo:rustc-link-lib={}", stdlib));
}
}
+
+ Ok(())
+ }
+
+ /// Run the compiler, generating the file `output`
+ ///
+ /// The name `output` should be the name of the library. For backwards compatibility,
+ /// the `output` may start with `lib` and end with `.a`. The Rust compilier will create
+ /// the assembly with the lib prefix and .a extension. MSVC will create a file without prefix,
+ /// ending with `.lib`.
+ ///
+ /// # Panics
+ ///
+ /// Panics if `output` is not formatted correctly or if one of the underlying
+ /// compiler commands fails. It can also panic if it fails reading file names
+ /// or creating directories.
+ pub fn compile(&self, output: &str) {
+ if let Err(e) = self.try_compile(output) {
+ fail(&e.message);
+ }
}
#[cfg(feature = "parallel")]
- fn compile_objects(&self, objs: &[(PathBuf, PathBuf)]) {
+ fn compile_objects(&self, objs: &[(PathBuf, PathBuf)]) -> Result<(), Error> {
use self::rayon::prelude::*;
let mut cfg = rayon::Configuration::new();
@@ -459,24 +796,36 @@ impl Config {
}
drop(rayon::initialize(cfg));
+ let results: Mutex<Vec<Result<(), Error>>> = Mutex::new(Vec::new());
+
objs.par_iter().with_max_len(1)
- .for_each(|&(ref src, ref dst)| self.compile_object(src, dst));
+ .for_each(|&(ref src, ref dst)| results.lock().unwrap().push(self.compile_object(src, dst)));
+
+ // Check for any errors and return the first one found.
+ for result in results.into_inner().unwrap().iter() {
+ if result.is_err() {
+ return result.clone();
+ }
+ }
+
+ Ok(())
}
#[cfg(not(feature = "parallel"))]
- fn compile_objects(&self, objs: &[(PathBuf, PathBuf)]) {
+ fn compile_objects(&self, objs: &[(PathBuf, PathBuf)]) -> Result<(), Error> {
for &(ref src, ref dst) in objs {
- self.compile_object(src, dst);
+ self.compile_object(src, dst)?;
}
+ Ok(())
}
- fn compile_object(&self, file: &Path, dst: &Path) {
+ fn compile_object(&self, file: &Path, dst: &Path) -> Result<(), Error> {
let is_asm = file.extension().and_then(|s| s.to_str()) == Some("asm");
- let msvc = self.get_target().contains("msvc");
+ let msvc = self.get_target()?.contains("msvc");
let (mut cmd, name) = if msvc && is_asm {
- self.msvc_macro_assembler()
+ self.msvc_macro_assembler()?
} else {
- let compiler = self.get_compiler();
+ let compiler = self.try_get_compiler()?;
let mut cmd = compiler.to_command();
for &(ref a, ref b) in self.env.iter() {
cmd.env(a, b);
@@ -484,46 +833,62 @@ impl Config {
(cmd,
compiler.path
.file_name()
- .unwrap()
+ .ok_or_else(|| Error::new(ErrorKind::IOError, "Failed to get compiler path."))?
.to_string_lossy()
.into_owned())
};
- if msvc && is_asm {
- cmd.arg("/Fo").arg(dst);
- } else if msvc {
- let mut s = OsString::from("/Fo");
- s.push(&dst);
- cmd.arg(s);
- } else {
- cmd.arg("-o").arg(&dst);
- }
+ command_add_output_file(&mut cmd, dst, msvc, is_asm);
cmd.arg(if msvc { "/c" } else { "-c" });
cmd.arg(file);
- run(&mut cmd, &name);
+ run(&mut cmd, &name)?;
+ Ok(())
}
- /// Run the compiler, returning the macro-expanded version of the input files.
- ///
- /// This is only relevant for C and C++ files.
- pub fn expand(&self) -> Vec<u8> {
- let compiler = self.get_compiler();
+ /// This will return a result instead of panicing; see expand() for the complete description.
+ pub fn try_expand(&self) -> Result<Vec<u8>, Error> {
+ let compiler = self.try_get_compiler()?;
let mut cmd = compiler.to_command();
for &(ref a, ref b) in self.env.iter() {
cmd.env(a, b);
}
cmd.arg(compiler.family.expand_flag());
+
+ assert!(self.files.len() <= 1,
+ "Expand may only be called for a single file");
+
for file in self.files.iter() {
cmd.arg(file);
}
let name = compiler.path
.file_name()
- .unwrap()
+ .ok_or_else(|| Error::new(ErrorKind::IOError, "Failed to get compiler path."))?
.to_string_lossy()
.into_owned();
- run_output(&mut cmd, &name)
+ Ok(run_output(&mut cmd, &name)?)
+ }
+
+ /// Run the compiler, returning the macro-expanded version of the input files.
+ ///
+ /// This is only relevant for C and C++ files.
+ ///
+ /// # Panics
+ /// Panics if more than one file is present in the config, or if compiler
+ /// path has an invalid file name.
+ ///
+ /// # Example
+ /// ```no_run
+ /// let out = gcc::Build::new()
+ /// .file("src/foo.c")
+ /// .expand();
+ /// ```
+ pub fn expand(&self) -> Vec<u8> {
+ match self.try_expand() {
+ Err(e) => fail(&e.message),
+ Ok(v) => v,
+ }
}
/// Get the compiler that's in use for this configuration.
@@ -540,11 +905,25 @@ impl Config {
/// conventions for this path, e.g. looking at the explicitly set compiler,
/// environment variables (a number of which are inspected here), and then
/// falling back to the default configuration.
+ ///
+ /// # Panics
+ ///
+ /// Panics if an error occurred while determining the architecture.
pub fn get_compiler(&self) -> Tool {
- let opt_level = self.get_opt_level();
- let target = self.get_target();
+ match self.try_get_compiler() {
+ Ok(tool) => tool,
+ Err(e) => fail(&e.message),
+ }
+ }
- let mut cmd = self.get_base_compiler();
+ /// Get the compiler that's in use for this configuration.
+ ///
+ /// This will return a result instead of panicing; see get_compiler() for the complete description.
+ pub fn try_get_compiler(&self) -> Result<Tool, Error> {
+ let opt_level = self.get_opt_level()?;
+ let target = self.get_target()?;
+
+ let mut cmd = self.get_base_compiler()?;
let nvcc = cmd.path.file_name()
.and_then(|p| p.to_str()).map(|p| p.contains("nvcc"))
.unwrap_or(false);
@@ -580,7 +959,14 @@ impl Config {
}
ToolFamily::Gnu |
ToolFamily::Clang => {
- cmd.args.push(format!("-O{}", opt_level).into());
+ // arm-linux-androideabi-gcc 4.8 shipped with Android NDK does
+ // not support '-Oz'
+ if opt_level == "z" && cmd.family != ToolFamily::Clang {
+ cmd.args.push("-Os".into());
+ } else {
+ cmd.args.push(format!("-O{}", opt_level).into());
+ }
+
if !nvcc {
cmd.args.push("-ffunction-sections".into());
cmd.args.push("-fdata-sections".into());
@@ -618,7 +1004,7 @@ impl Config {
cmd.args.push("-m64".into());
}
- if target.contains("musl") {
+ if self.static_flag.is_none() && target.contains("musl") {
cmd.args.push("-static".into());
}
@@ -695,7 +1081,14 @@ impl Config {
if target.contains("-ios") {
// FIXME: potential bug. iOS is always compiled with Clang, but Gcc compiler may be
// detected instead.
- self.ios_flags(&mut cmd);
+ self.ios_flags(&mut cmd)?;
+ }
+
+ if self.static_flag.unwrap_or(false) {
+ cmd.args.push("-static".into());
+ }
+ if self.shared_flag.unwrap_or(false) {
+ cmd.args.push("-shared".into());
}
if self.cpp {
@@ -721,6 +1114,12 @@ impl Config {
cmd.args.push(flag.into());
}
+ for flag in self.flags_supported.iter() {
+ if self.is_flag_supported(flag).unwrap_or(false) {
+ cmd.args.push(flag.into());
+ }
+ }
+
for &(ref key, ref value) in self.definitions.iter() {
let lead = if let ToolFamily::Msvc = cmd.family {"/"} else {"-"};
if let Some(ref value) = *value {
@@ -729,11 +1128,22 @@ impl Config {
cmd.args.push(format!("{}D{}", lead, key).into());
}
}
- cmd
+
+ if self.warnings {
+ for flag in cmd.family.warnings_flags().iter() {
+ cmd.args.push(flag.into());
+ }
+ }
+
+ if self.warnings_into_errors {
+ cmd.args.push(cmd.family.warnings_to_errors_flag().into());
+ }
+
+ Ok(cmd)
}
- fn msvc_macro_assembler(&self) -> (Command, String) {
- let target = self.get_target();
+ fn msvc_macro_assembler(&self) -> Result<(Command, String), Error> {
+ let target = self.get_target()?;
let tool = if target.contains("x86_64") {
"ml64.exe"
} else {
@@ -758,15 +1168,15 @@ impl Config {
cmd.arg(flag);
}
- (cmd, tool.to_string())
+ Ok((cmd, tool.to_string()))
}
- fn assemble(&self, lib_name: &str, dst: &Path, objects: &[PathBuf]) {
+ fn assemble(&self, lib_name: &str, dst: &Path, objects: &[PathBuf]) -> Result<(), Error> {
// Delete the destination if it exists as the `ar` tool at least on Unix
// appends to it, which we don't want.
let _ = fs::remove_file(&dst);
- let target = self.get_target();
+ let target = self.get_target()?;
if target.contains("msvc") {
let mut cmd = match self.archiver {
Some(ref s) => self.cmd(s),
@@ -778,46 +1188,52 @@ impl Config {
.arg("/nologo")
.args(objects)
.args(&self.objects),
- "lib.exe");
+ "lib.exe")?;
// The Rust compiler will look for libfoo.a and foo.lib, but the
// MSVC linker will also be passed foo.lib, so be sure that both
// exist for now.
let lib_dst = dst.with_file_name(format!("{}.lib", lib_name));
let _ = fs::remove_file(&lib_dst);
- fs::hard_link(&dst, &lib_dst)
+ match fs::hard_link(&dst, &lib_dst)
.or_else(|_| {
// if hard-link fails, just copy (ignoring the number of bytes written)
fs::copy(&dst, &lib_dst).map(|_| ())
- })
- .expect("Copying from {:?} to {:?} failed.");;
+ }) {
+ Ok(_) => (),
+ Err(_) => return Err(Error::new(ErrorKind::IOError, "Could not copy or create a hard-link to the generated lib file.")),
+ };
} else {
- let ar = self.get_ar();
- let cmd = ar.file_name().unwrap().to_string_lossy();
+ let ar = self.get_ar()?;
+ let cmd = ar.file_name()
+ .ok_or_else(|| Error::new(ErrorKind::IOError, "Failed to get archiver (ar) path."))?
+ .to_string_lossy();
run(self.cmd(&ar)
.arg("crs")
.arg(dst)
.args(objects)
.args(&self.objects),
- &cmd);
+ &cmd)?;
}
+
+ Ok(())
}
- fn ios_flags(&self, cmd: &mut Tool) {
+ fn ios_flags(&self, cmd: &mut Tool) -> Result<(), Error> {
enum ArchSpec {
Device(&'static str),
Simulator(&'static str),
}
- let target = self.get_target();
- let arch = target.split('-').nth(0).unwrap();
+ let target = self.get_target()?;
+ let arch = target.split('-').nth(0).ok_or_else(|| Error::new(ErrorKind::ArchitectureInvalid, "Unknown architecture for iOS target."))?;
let arch = match arch {
"arm" | "armv7" | "thumbv7" => ArchSpec::Device("armv7"),
"armv7s" | "thumbv7s" => ArchSpec::Device("armv7s"),
"arm64" | "aarch64" => ArchSpec::Device("arm64"),
"i386" | "i686" => ArchSpec::Simulator("-m32"),
"x86_64" => ArchSpec::Simulator("-m64"),
- _ => fail("Unknown arch for iOS target"),
+ _ => return Err(Error::new(ErrorKind::ArchitectureInvalid, "Unknown architecture for iOS target.")),
};
let sdk = match arch {
@@ -840,14 +1256,18 @@ impl Config {
.arg("--sdk")
.arg(sdk)
.stderr(Stdio::inherit())
- .output()
- .unwrap()
+ .output()?
.stdout;
- let sdk_path = String::from_utf8(sdk_path).unwrap();
+ let sdk_path = match String::from_utf8(sdk_path) {
+ Ok(p) => p,
+ Err(_) => return Err(Error::new(ErrorKind::IOError, "Unable to determine iOS SDK path.")),
+ };
cmd.args.push("-isysroot".into());
cmd.args.push(sdk_path.trim().into());
+
+ Ok(())
}
fn cmd<P: AsRef<OsStr>>(&self, prog: P) -> Command {
@@ -858,12 +1278,12 @@ impl Config {
cmd
}
- fn get_base_compiler(&self) -> Tool {
+ fn get_base_compiler(&self) -> Result<Tool, Error> {
if let Some(ref c) = self.compiler {
- return Tool::new(c.clone());
+ return Ok(Tool::new(c.clone()));
}
- let host = self.get_host();
- let target = self.get_target();
+ let host = self.get_host()?;
+ let target = self.get_target()?;
let (env, msvc, gnu) = if self.cpp {
("CXX", "cl.exe", "g++")
} else {
@@ -879,7 +1299,7 @@ impl Config {
"cc"
};
- self.env_tool(env)
+ let tool_opt: Option<Tool> = self.env_tool(env)
.map(|(tool, args)| {
let mut t = Tool::new(PathBuf::from(tool));
for arg in args {
@@ -889,28 +1309,29 @@ impl Config {
})
.or_else(|| {
if target.contains("emscripten") {
- //Windows uses bat file so we have to be a bit more specific
let tool = if self.cpp {
- if cfg!(windows) {
- "em++.bat"
- } else {
- "em++"
- }
+ "em++"
} else {
- if cfg!(windows) {
- "emcc.bat"
- } else {
- "emcc"
- }
+ "emcc"
};
-
- Some(Tool::new(PathBuf::from(tool)))
+ // Windows uses bat file so we have to be a bit more specific
+ if cfg!(windows) {
+ let mut t = Tool::new(PathBuf::from("cmd"));
+ t.args.push("/c".into());
+ t.args.push(format!("{}.bat", tool).into());
+ Some(t)
+ } else {
+ Some(Tool::new(PathBuf::from(tool)))
+ }
} else {
None
}
})
- .or_else(|| windows_registry::find_tool(&target, "cl.exe"))
- .unwrap_or_else(|| {
+ .or_else(|| windows_registry::find_tool(&target, "cl.exe"));
+
+ let tool = match tool_opt {
+ Some(t) => t,
+ None => {
let compiler = if host.contains("windows") && target.contains("windows") {
if target.contains("msvc") {
msvc.to_string()
@@ -919,7 +1340,7 @@ impl Config {
}
} else if target.contains("android") {
format!("{}-{}", target.replace("armv7", "arm"), gnu)
- } else if self.get_host() != target {
+ } else if self.get_host()? != target {
// CROSS_COMPILE is of the form: "arm-linux-gnueabi-"
let cc_env = self.getenv("CROSS_COMPILE");
let cross_compile = cc_env.as_ref().map(|s| s.trim_right_matches('-'));
@@ -930,14 +1351,14 @@ impl Config {
"arm-unknown-linux-gnueabihf" => Some("arm-linux-gnueabihf"),
"arm-unknown-linux-musleabi" => Some("arm-linux-musleabi"),
"arm-unknown-linux-musleabihf" => Some("arm-linux-musleabihf"),
- "arm-unknown-netbsdelf-eabi" => Some("arm--netbsdelf-eabi"),
- "armv6-unknown-netbsdelf-eabihf" => Some("armv6--netbsdelf-eabihf"),
+ "arm-unknown-netbsd-eabi" => Some("arm--netbsdelf-eabi"),
+ "armv6-unknown-netbsd-eabihf" => Some("armv6--netbsdelf-eabihf"),
"armv7-unknown-linux-gnueabihf" => Some("arm-linux-gnueabihf"),
"armv7-unknown-linux-musleabihf" => Some("arm-linux-musleabihf"),
- "armv7-unknown-netbsdelf-eabihf" => Some("armv7--netbsdelf-eabihf"),
+ "armv7-unknown-netbsd-eabihf" => Some("armv7--netbsdelf-eabihf"),
"i686-pc-windows-gnu" => Some("i686-w64-mingw32"),
"i686-unknown-linux-musl" => Some("musl"),
- "i686-unknown-netbsdelf" => Some("i486--netbsdelf"),
+ "i686-unknown-netbsd" => Some("i486--netbsdelf"),
"mips-unknown-linux-gnu" => Some("mips-linux-gnu"),
"mipsel-unknown-linux-gnu" => Some("mipsel-linux-gnu"),
"mips64-unknown-linux-gnuabi64" => Some("mips64-linux-gnuabi64"),
@@ -967,12 +1388,15 @@ impl Config {
default.to_string()
};
Tool::new(PathBuf::from(compiler))
- })
+ }
+ };
+
+ Ok(tool)
}
- fn get_var(&self, var_base: &str) -> Result<String, String> {
- let target = self.get_target();
- let host = self.get_host();
+ fn get_var(&self, var_base: &str) -> Result<String, Error> {
+ let target = self.get_target()?;
+ let host = self.get_host()?;
let kind = if host == target { "HOST" } else { "TARGET" };
let target_u = target.replace("-", "_");
let res = self.getenv(&format!("{}_{}", var_base, target))
@@ -982,7 +1406,7 @@ impl Config {
match res {
Some(res) => Ok(res),
- None => Err("could not get environment variable".to_string()),
+ None => Err(Error::new(ErrorKind::EnvVarNotFound, &format!("Could not find environment variable {}.", var_base))),
}
}
@@ -997,7 +1421,7 @@ impl Config {
fn env_tool(&self, name: &str) -> Option<(String, Vec<String>)> {
self.get_var(name).ok().map(|tool| {
- let whitelist = ["ccache", "distcc"];
+ let whitelist = ["ccache", "distcc", "sccache"];
for t in whitelist.iter() {
if tool.starts_with(t) && tool[t.len()..].starts_with(' ') {
return (t.to_string(), vec![tool[t.len()..].trim_left().to_string()]);
@@ -1009,61 +1433,85 @@ impl Config {
/// Returns the default C++ standard library for the current target: `libc++`
/// for OS X and `libstdc++` for anything else.
- fn get_cpp_link_stdlib(&self) -> Option<String> {
- self.cpp_link_stdlib.clone().unwrap_or_else(|| {
- let target = self.get_target();
- if target.contains("msvc") {
- None
- } else if target.contains("darwin") {
- Some("c++".to_string())
- } else if target.contains("freebsd") {
- Some("c++".to_string())
- } else {
- Some("stdc++".to_string())
- }
- })
+ fn get_cpp_link_stdlib(&self) -> Result<Option<String>, Error> {
+ match self.cpp_link_stdlib.clone() {
+ Some(s) => Ok(s),
+ None => {
+ let target = self.get_target()?;
+ if target.contains("msvc") {
+ Ok(None)
+ } else if target.contains("darwin") {
+ Ok(Some("c++".to_string()))
+ } else if target.contains("freebsd") {
+ Ok(Some("c++".to_string()))
+ } else {
+ Ok(Some("stdc++".to_string()))
+ }
+ },
+ }
}
- fn get_ar(&self) -> PathBuf {
- self.archiver
+ fn get_ar(&self) -> Result<PathBuf, Error> {
+ match self.archiver
.clone()
- .or_else(|| self.get_var("AR").map(PathBuf::from).ok())
- .unwrap_or_else(|| {
- if self.get_target().contains("android") {
- PathBuf::from(format!("{}-ar", self.get_target().replace("armv7", "arm")))
- } else if self.get_target().contains("emscripten") {
- //Windows use bat files so we have to be a bit more specific
- let tool = if cfg!(windows) {
- "emar.bat"
- } else {
- "emar"
- };
+ .or_else(|| self.get_var("AR").map(PathBuf::from).ok()) {
+ Some(p) => Ok(p),
+ None => {
+ if self.get_target()?.contains("android") {
+ Ok(PathBuf::from(format!("{}-ar", self.get_target()?.replace("armv7", "arm"))))
+ } else if self.get_target()?.contains("emscripten") {
+ //Windows use bat files so we have to be a bit more specific
+ let tool = if cfg!(windows) {
+ "emar.bat"
+ } else {
+ "emar"
+ };
- PathBuf::from(tool)
- } else {
- PathBuf::from("ar")
+ Ok(PathBuf::from(tool))
+ } else {
+ Ok(PathBuf::from("ar"))
+ }
}
- })
+ }
}
- fn get_target(&self) -> String {
- self.target.clone().unwrap_or_else(|| self.getenv_unwrap("TARGET"))
+ fn get_target(&self) -> Result<String, Error> {
+ match self.target.clone() {
+ Some(t) => Ok(t),
+ None => Ok(self.getenv_unwrap("TARGET")?),
+ }
}
- fn get_host(&self) -> String {
- self.host.clone().unwrap_or_else(|| self.getenv_unwrap("HOST"))
+ fn get_host(&self) -> Result<String, Error> {
+ match self.host.clone() {
+ Some(h) => Ok(h),
+ None => Ok(self.getenv_unwrap("HOST")?),
+ }
}
- fn get_opt_level(&self) -> String {
- self.opt_level.as_ref().cloned().unwrap_or_else(|| self.getenv_unwrap("OPT_LEVEL"))
+ fn get_opt_level(&self) -> Result<String, Error> {
+ match self.opt_level.as_ref().cloned() {
+ Some(ol) => Ok(ol),
+ None => Ok(self.getenv_unwrap("OPT_LEVEL")?),
+ }
}
fn get_debug(&self) -> bool {
- self.debug.unwrap_or_else(|| self.getenv_unwrap("PROFILE") == "debug")
+ self.debug.unwrap_or_else(|| {
+ match self.getenv("DEBUG") {
+ Some(s) => s != "false",
+ None => false,
+ }
+ })
}
- fn get_out_dir(&self) -> PathBuf {
- self.out_dir.clone().unwrap_or_else(|| env::var_os("OUT_DIR").map(PathBuf::from).unwrap())
+ fn get_out_dir(&self) -> Result<PathBuf, Error> {
+ match self.out_dir.clone() {
+ Some(p) => Ok(p),
+ None => Ok(env::var_os("OUT_DIR")
+ .map(PathBuf::from)
+ .ok_or_else(|| Error::new(ErrorKind::EnvVarNotFound, "Environment variable OUT_DIR not defined."))?),
+ }
}
fn getenv(&self, v: &str) -> Option<String> {
@@ -1072,10 +1520,10 @@ impl Config {
r
}
- fn getenv_unwrap(&self, v: &str) -> String {
+ fn getenv_unwrap(&self, v: &str) -> Result<String, Error> {
match self.getenv(v) {
- Some(s) => s,
- None => fail(&format!("environment variable `{}` not defined", v)),
+ Some(s) => Ok(s),
+ None => Err(Error::new(ErrorKind::EnvVarNotFound, &format!("Environment variable {} not defined.", v.to_string()))),
}
}
@@ -1086,6 +1534,12 @@ impl Config {
}
}
+impl Default for Build {
+ fn default() -> Build {
+ Build::new()
+ }
+}
+
impl Tool {
fn new(path: PathBuf) -> Tool {
// Try to detect family of the tool from its name, falling back to Gnu.
@@ -1145,31 +1599,42 @@ impl Tool {
}
}
-fn run(cmd: &mut Command, program: &str) {
- let (mut child, print) = spawn(cmd, program);
- let status = child.wait().expect("failed to wait on child process");
+fn run(cmd: &mut Command, program: &str) -> Result<(), Error> {
+ let (mut child, print) = spawn(cmd, program)?;
+ let status = match child.wait() {
+ Ok(s) => s,
+ Err(_) => return Err(Error::new(ErrorKind::ToolExecError, &format!("Failed to wait on spawned child process, command {:?} with args {:?}.", cmd, program))),
+ };
print.join().unwrap();
println!("{}", status);
- if !status.success() {
- fail(&format!("command did not execute successfully, got: {}", status));
+
+ if status.success() {
+ Ok(())
+ } else {
+ Err(Error::new(ErrorKind::ToolExecError, &format!("Command {:?} with args {:?} did not execute successfully (status code {}).", cmd, program, status)))
}
}
-fn run_output(cmd: &mut Command, program: &str) -> Vec<u8> {
+fn run_output(cmd: &mut Command, program: &str) -> Result<Vec<u8>, Error> {
cmd.stdout(Stdio::piped());
- let (mut child, print) = spawn(cmd, program);
+ let (mut child, print) = spawn(cmd, program)?;
let mut stdout = vec![];
child.stdout.take().unwrap().read_to_end(&mut stdout).unwrap();
- let status = child.wait().expect("failed to wait on child process");
+ let status = match child.wait() {
+ Ok(s) => s,
+ Err(_) => return Err(Error::new(ErrorKind::ToolExecError, &format!("Failed to wait on spawned child process, command {:?} with args {:?}.", cmd, program))),
+ };
print.join().unwrap();
println!("{}", status);
- if !status.success() {
- fail(&format!("command did not execute successfully, got: {}", status));
+
+ if status.success() {
+ Ok(stdout)
+ } else {
+ Err(Error::new(ErrorKind::ToolExecError, &format!("Command {:?} with args {:?} did not execute successfully (status code {}).", cmd, program, status)))
}
- stdout
}
-fn spawn(cmd: &mut Command, program: &str) -> (Child, JoinHandle<()>) {
+fn spawn(cmd: &mut Command, program: &str) -> Result<(Child, JoinHandle<()>), Error> {
println!("running: {:?}", cmd);
// Capture the standard error coming from these programs, and write it out
@@ -1186,7 +1651,7 @@ fn spawn(cmd: &mut Command, program: &str) -> (Child, JoinHandle<()>) {
println!("");
}
});
- (child, print)
+ Ok((child, print))
}
Err(ref e) if e.kind() == io::ErrorKind::NotFound => {
let extra = if cfg!(windows) {
@@ -1195,17 +1660,25 @@ fn spawn(cmd: &mut Command, program: &str) -> (Child, JoinHandle<()>) {
} else {
""
};
- fail(&format!("failed to execute command: {}\nIs `{}` \
- not installed?{}",
- e,
- program,
- extra));
+ Err(Error::new(ErrorKind::ToolNotFound, &format!("Failed to find tool. Is `{}` installed?{}", program, extra)))
}
- Err(e) => fail(&format!("failed to execute command: {}", e)),
+ Err(_) => Err(Error::new(ErrorKind::ToolExecError, &format!("Command {:?} with args {:?} failed to start.", cmd, program))),
}
}
fn fail(s: &str) -> ! {
- println!("\n\n{}\n\n", s);
- panic!()
+ panic!("\n\nInternal error occurred: {}\n\n", s)
+}
+
+
+fn command_add_output_file(cmd: &mut Command, dst: &Path, msvc: bool, is_asm: bool) {
+ if msvc && is_asm {
+ cmd.arg("/Fo").arg(dst);
+ } else if msvc {
+ let mut s = OsString::from("/Fo");
+ s.push(&dst);
+ cmd.arg(s);
+ } else {
+ cmd.arg("-o").arg(&dst);
+ }
}
diff --git a/gcc/src/winapi.rs b/gcc/src/winapi.rs
index 010d165..3fb0408 100644
--- a/gcc/src/winapi.rs
+++ b/gcc/src/winapi.rs
@@ -67,8 +67,8 @@ pub trait Interface {
fn uuidof() -> GUID;
}
-#[link(name = "Ole32")]
-#[link(name = "OleAut32")]
+#[link(name = "ole32")]
+#[link(name = "oleaut32")]
extern { }
extern "system" {
diff --git a/gcc/src/windows_registry.rs b/gcc/src/windows_registry.rs
index d05fc1d..9099e0f 100644
--- a/gcc/src/windows_registry.rs
+++ b/gcc/src/windows_registry.rs
@@ -87,6 +87,7 @@ pub fn find_tool(target: &str, tool: &str) -> Option<Tool> {
}
/// A version of Visual Studio
+#[derive(Debug, PartialEq, Eq, Copy, Clone)]
pub enum VsVers {
/// Visual Studio 12 (2013)
Vs12,
@@ -99,6 +100,7 @@ pub enum VsVers {
/// handle an enumeration of `VsVers` instances should always have a default
/// case meaning that it's a VS version they don't understand.
#[doc(hidden)]
+ #[allow(bad_style)]
__Nonexhaustive_do_not_match_this_or_your_code_will_break,
}
@@ -195,6 +197,10 @@ mod impl_ {
// In MSVC 15 (2017) MS once again changed the scheme for locating
// the tooling. Now we must go through some COM interfaces, which
// is super fun for Rust.
+ //
+ // Note that much of this logic can be found [online] wrt paths, COM, etc.
+ //
+ // [online]: https://blogs.msdn.microsoft.com/vcblog/2017/03/06/finding-the-visual-c-compiler-tools-in-visual-studio-2017/
pub fn find_msvc_15(tool: &str, target: &str) -> Option<Tool> {
otry!(com::initialize().ok());
@@ -213,12 +219,12 @@ mod impl_ {
fn tool_from_vs15_instance(tool: &str, target: &str,
instance: &SetupInstance) -> Option<Tool> {
- let (bin_path, lib_path, include_path) = otry!(vs15_vc_paths(target, instance));
+ let (bin_path, host_dylib_path, lib_path, include_path) = otry!(vs15_vc_paths(target, instance));
let tool_path = bin_path.join(tool);
if !tool_path.exists() { return None };
let mut tool = MsvcTool::new(tool_path);
- tool.path.push(bin_path.clone());
+ tool.path.push(host_dylib_path);
tool.libs.push(lib_path);
tool.include.push(include_path);
@@ -232,7 +238,7 @@ mod impl_ {
Some(tool.into_tool())
}
- fn vs15_vc_paths(target: &str, instance: &SetupInstance) -> Option<(PathBuf, PathBuf, PathBuf)> {
+ fn vs15_vc_paths(target: &str, instance: &SetupInstance) -> Option<(PathBuf, PathBuf, PathBuf, PathBuf)> {
let instance_path: PathBuf = otry!(instance.installation_path().ok()).into();
let version_path = instance_path.join(r"VC\Auxiliary\Build\Microsoft.VCToolsVersion.default.txt");
let mut version_file = otry!(File::open(version_path).ok());
@@ -245,11 +251,18 @@ mod impl_ {
_ => return None,
};
let target = otry!(lib_subdir(target));
+ // The directory layout here is MSVC/bin/Host$host/$target/
let path = instance_path.join(r"VC\Tools\MSVC").join(version);
+ // This is the path to the toolchain for a particular target, running
+ // on a given host
let bin_path = path.join("bin").join(&format!("Host{}", host)).join(&target);
+ // But! we also need PATH to contain the target directory for the host
+ // architecture, because it contains dlls like mspdb140.dll compiled for
+ // the host architecture.
+ let host_dylib_path = path.join("bin").join(&format!("Host{}", host)).join(&host.to_lowercase());
let lib_path = path.join("lib").join(&target);
let include_path = path.join("include");
- Some((bin_path, lib_path, include_path))
+ Some((bin_path, host_dylib_path, lib_path, include_path))
}
fn atl_paths(target: &str, path: &Path) -> Option<(PathBuf, PathBuf)> {
diff --git a/gcc/tests/support/mod.rs b/gcc/tests/support/mod.rs
index 135a663..2f3e44c 100644
--- a/gcc/tests/support/mod.rs
+++ b/gcc/tests/support/mod.rs
@@ -36,7 +36,7 @@ impl Test {
pub fn gnu() -> Test {
let t = Test::new();
- t.shim("cc").shim("ar");
+ t.shim("cc").shim("c++").shim("ar");
t
}
@@ -55,8 +55,8 @@ impl Test {
self
}
- pub fn gcc(&self) -> gcc::Config {
- let mut cfg = gcc::Config::new();
+ pub fn gcc(&self) -> gcc::Build {
+ let mut cfg = gcc::Build::new();
let mut path = env::split_paths(&env::var_os("PATH").unwrap()).collect::<Vec<_>>();
path.insert(0, self.td.path().to_owned());
let target = if self.msvc {
diff --git a/gcc/tests/test.rs b/gcc/tests/test.rs
index 8fda3ed..dd60f94 100644
--- a/gcc/tests/test.rs
+++ b/gcc/tests/test.rs
@@ -10,7 +10,7 @@ fn gnu_smoke() {
let test = Test::gnu();
test.gcc()
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0)
.must_have("-O2")
@@ -28,7 +28,7 @@ fn gnu_opt_level_1() {
test.gcc()
.opt_level(1)
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0)
.must_have("-O1")
@@ -41,7 +41,7 @@ fn gnu_opt_level_s() {
test.gcc()
.opt_level_str("s")
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0)
.must_have("-Os")
@@ -57,11 +57,34 @@ fn gnu_debug() {
test.gcc()
.debug(true)
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0).must_have("-g");
}
#[test]
+fn gnu_warnings_into_errors() {
+ let test = Test::gnu();
+ test.gcc()
+ .warnings_into_errors(true)
+ .file("foo.c")
+ .compile("foo");
+
+ test.cmd(0).must_have("-Werror");
+}
+
+#[test]
+fn gnu_warnings() {
+ let test = Test::gnu();
+ test.gcc()
+ .warnings(true)
+ .file("foo.c")
+ .compile("foo");
+
+ test.cmd(0).must_have("-Wall")
+ .must_have("-Wextra");
+}
+
+#[test]
fn gnu_x86_64() {
for vendor in &["unknown-linux-gnu", "apple-darwin"] {
let target = format!("x86_64-{}", vendor);
@@ -70,7 +93,7 @@ fn gnu_x86_64() {
.target(&target)
.host(&target)
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0)
.must_have("-fPIC")
@@ -88,7 +111,7 @@ fn gnu_x86_64_no_pic() {
.target(&target)
.host(&target)
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0).must_not_have("-fPIC");
}
@@ -103,7 +126,7 @@ fn gnu_i686() {
.target(&target)
.host(&target)
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0)
.must_have("-m32");
@@ -120,7 +143,7 @@ fn gnu_i686_pic() {
.target(&target)
.host(&target)
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0).must_have("-fPIC");
}
@@ -132,7 +155,7 @@ fn gnu_set_stdlib() {
test.gcc()
.cpp_set_stdlib(Some("foo"))
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0).must_not_have("-stdlib=foo");
}
@@ -143,7 +166,7 @@ fn gnu_include() {
test.gcc()
.include("foo/bar")
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0).must_have("-I").must_have("foo/bar");
}
@@ -152,10 +175,10 @@ fn gnu_include() {
fn gnu_define() {
let test = Test::gnu();
test.gcc()
- .define("FOO", Some("bar"))
+ .define("FOO", "bar")
.define("BAR", None)
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0).must_have("-DFOO=bar").must_have("-DBAR");
}
@@ -165,16 +188,79 @@ fn gnu_compile_assembly() {
let test = Test::gnu();
test.gcc()
.file("foo.S")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0).must_have("foo.S");
}
#[test]
+fn gnu_shared() {
+ let test = Test::gnu();
+ test.gcc()
+ .file("foo.c")
+ .shared_flag(true)
+ .static_flag(false)
+ .compile("foo");
+
+ test.cmd(0)
+ .must_have("-shared")
+ .must_not_have("-static");
+}
+
+#[test]
+fn gnu_flag_if_supported() {
+ if cfg!(windows) {
+ return
+ }
+ let test = Test::gnu();
+ test.gcc()
+ .file("foo.c")
+ .flag_if_supported("-Wall")
+ .flag_if_supported("-Wflag-does-not-exist")
+ .flag_if_supported("-std=c++11")
+ .compile("foo");
+
+ test.cmd(0)
+ .must_have("-Wall")
+ .must_not_have("-Wflag-does-not-exist")
+ .must_not_have("-std=c++11");
+}
+
+#[test]
+fn gnu_flag_if_supported_cpp() {
+ if cfg!(windows) {
+ return
+ }
+ let test = Test::gnu();
+ test.gcc()
+ .cpp(true)
+ .file("foo.cpp")
+ .flag_if_supported("-std=c++11")
+ .compile("foo");
+
+ test.cmd(0)
+ .must_have("-std=c++11");
+}
+
+#[test]
+fn gnu_static() {
+ let test = Test::gnu();
+ test.gcc()
+ .file("foo.c")
+ .shared_flag(false)
+ .static_flag(true)
+ .compile("foo");
+
+ test.cmd(0)
+ .must_have("-static")
+ .must_not_have("-shared");
+}
+
+#[test]
fn msvc_smoke() {
let test = Test::msvc();
test.gcc()
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0)
.must_have("/O2")
@@ -191,7 +277,7 @@ fn msvc_opt_level_0() {
test.gcc()
.opt_level(0)
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0).must_not_have("/O2");
}
@@ -202,7 +288,7 @@ fn msvc_debug() {
test.gcc()
.debug(true)
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0).must_have("/Z7");
}
@@ -212,7 +298,7 @@ fn msvc_include() {
test.gcc()
.include("foo/bar")
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0).must_have("/I").must_have("foo/bar");
}
@@ -221,10 +307,10 @@ fn msvc_include() {
fn msvc_define() {
let test = Test::msvc();
test.gcc()
- .define("FOO", Some("bar"))
+ .define("FOO", "bar")
.define("BAR", None)
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0).must_have("/DFOO=bar").must_have("/DBAR");
}
@@ -235,7 +321,7 @@ fn msvc_static_crt() {
test.gcc()
.static_crt(true)
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0).must_have("/MT");
}
@@ -246,7 +332,7 @@ fn msvc_no_static_crt() {
test.gcc()
.static_crt(false)
.file("foo.c")
- .compile("libfoo.a");
+ .compile("foo");
test.cmd(0).must_have("/MD");
}
generated by cgit v1.2.3 (git 2.46.0) at 2024-11-03 23:30:30 +0000