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use serialize::json::Json;
use syntax::{diagnostic, abi};
use std::default::Default;
use std::old_io::fs::PathExtensions;
mod windows_base;
mod linux_base;
mod apple_base;
mod apple_ios_base;
mod freebsd_base;
mod dragonfly_base;
mod bitrig_base;
mod openbsd_base;
mod armv7_apple_ios;
mod armv7s_apple_ios;
mod i386_apple_ios;
mod arm_linux_androideabi;
mod arm_unknown_linux_gnueabi;
mod arm_unknown_linux_gnueabihf;
mod aarch64_apple_ios;
mod aarch64_linux_android;
mod aarch64_unknown_linux_gnu;
mod i686_apple_darwin;
mod i686_pc_windows_gnu;
mod i686_unknown_dragonfly;
mod i686_unknown_linux_gnu;
mod mips_unknown_linux_gnu;
mod mipsel_unknown_linux_gnu;
mod powerpc_unknown_linux_gnu;
mod x86_64_apple_darwin;
mod x86_64_apple_ios;
mod x86_64_pc_windows_gnu;
mod x86_64_unknown_freebsd;
mod x86_64_unknown_dragonfly;
mod x86_64_unknown_bitrig;
mod x86_64_unknown_linux_gnu;
mod x86_64_unknown_openbsd;
#[derive(Clone, Debug)]
pub struct Target {
pub data_layout: String,
pub llvm_target: String,
pub target_endian: String,
pub target_pointer_width: String,
pub target_os: String,
pub arch: String,
pub options: TargetOptions,
}
#[derive(Clone, Debug)]
pub struct TargetOptions {
pub linker: String,
pub pre_link_args: Vec<String>,
pub post_link_args: Vec<String>,
pub cpu: String,
pub features: String,
pub dynamic_linking: bool,
pub executables: bool,
pub morestack: bool,
pub relocation_model: String,
pub code_model: String,
pub disable_redzone: bool,
pub eliminate_frame_pointer: bool,
pub function_sections: bool,
pub dll_prefix: String,
pub dll_suffix: String,
pub exe_suffix: String,
pub staticlib_prefix: String,
pub staticlib_suffix: String,
pub is_like_osx: bool,
pub is_like_windows: bool,
pub is_like_android: bool,
pub linker_is_gnu: bool,
pub has_rpath: bool,
pub no_compiler_rt: bool,
pub position_independent_executables: bool,
}
impl Default for TargetOptions {
fn default() -> TargetOptions {
TargetOptions {
linker: "cc".to_string(),
pre_link_args: Vec::new(),
post_link_args: Vec::new(),
cpu: "generic".to_string(),
features: "".to_string(),
dynamic_linking: false,
executables: false,
morestack: false,
relocation_model: "pic".to_string(),
code_model: "default".to_string(),
disable_redzone: false,
eliminate_frame_pointer: true,
function_sections: true,
dll_prefix: "lib".to_string(),
dll_suffix: ".so".to_string(),
exe_suffix: "".to_string(),
staticlib_prefix: "lib".to_string(),
staticlib_suffix: ".a".to_string(),
is_like_osx: false,
is_like_windows: false,
is_like_android: false,
linker_is_gnu: false,
has_rpath: false,
no_compiler_rt: false,
position_independent_executables: false,
}
}
}
impl Target {
pub fn adjust_abi(&self, abi: abi::Abi) -> abi::Abi {
match abi {
abi::System => {
if self.options.is_like_windows && self.arch == "x86" {
abi::Stdcall
} else {
abi::C
}
},
abi => abi
}
}
pub fn from_json(obj: Json) -> Target {
let handler = diagnostic::default_handler(diagnostic::Auto, None, true);
let get_req_field = |name: &str| {
match obj.find(name)
.map(|s| s.as_string())
.and_then(|os| os.map(|s| s.to_string())) {
Some(val) => val,
None =>
handler.fatal(&format!("Field {} in target specification is required", name)[])
}
};
let mut base = Target {
data_layout: get_req_field("data-layout"),
llvm_target: get_req_field("llvm-target"),
target_endian: get_req_field("target-endian"),
target_pointer_width: get_req_field("target-pointer-width"),
arch: get_req_field("arch"),
target_os: get_req_field("os"),
options: Default::default(),
};
macro_rules! key {
($key_name:ident) => ( {
let name = (stringify!($key_name)).replace("_", "-");
obj.find(&name[..]).map(|o| o.as_string()
.map(|s| base.options.$key_name = s.to_string()));
} );
($key_name:ident, bool) => ( {
let name = (stringify!($key_name)).replace("_", "-");
obj.find(&name[..])
.map(|o| o.as_boolean()
.map(|s| base.options.$key_name = s));
} );
($key_name:ident, list) => ( {
let name = (stringify!($key_name)).replace("_", "-");
obj.find(&name[..]).map(|o| o.as_array()
.map(|v| base.options.$key_name = v.iter()
.map(|a| a.as_string().unwrap().to_string()).collect()
)
);
} );
}
key!(cpu);
key!(linker);
key!(relocation_model);
key!(code_model);
key!(dll_prefix);
key!(dll_suffix);
key!(exe_suffix);
key!(staticlib_prefix);
key!(staticlib_suffix);
key!(features);
key!(dynamic_linking, bool);
key!(executables, bool);
key!(morestack, bool);
key!(disable_redzone, bool);
key!(eliminate_frame_pointer, bool);
key!(function_sections, bool);
key!(is_like_osx, bool);
key!(is_like_windows, bool);
key!(linker_is_gnu, bool);
key!(has_rpath, bool);
key!(no_compiler_rt, bool);
key!(pre_link_args, list);
key!(post_link_args, list);
base
}
pub fn search(target: &str) -> Result<Target, String> {
use std::env;
use std::ffi::OsString;
use std::old_io::File;
use std::old_path::Path;
use serialize::json;
fn load_file(path: &Path) -> Result<Target, String> {
let mut f = try!(File::open(path).map_err(|e| format!("{:?}", e)));
let obj = try!(json::from_reader(&mut f).map_err(|e| format!("{:?}", e)));
Ok(Target::from_json(obj))
}
macro_rules! load_specific {
( $($name:ident),+ ) => (
{
let target = target.replace("-", "_");
if false { }
$(
else if target == stringify!($name) {
let t = $name::target();
debug!("Got builtin target: {:?}", t);
return Ok(t);
}
)*
else if target == "x86_64-w64-mingw32" {
let t = x86_64_pc_windows_gnu::target();
return Ok(t);
} else if target == "i686-w64-mingw32" {
let t = i686_pc_windows_gnu::target();
return Ok(t);
}
}
)
}
load_specific!(
x86_64_unknown_linux_gnu,
i686_unknown_linux_gnu,
mips_unknown_linux_gnu,
mipsel_unknown_linux_gnu,
powerpc_unknown_linux_gnu,
arm_unknown_linux_gnueabi,
arm_unknown_linux_gnueabihf,
aarch64_unknown_linux_gnu,
arm_linux_androideabi,
aarch64_linux_android,
x86_64_unknown_freebsd,
i686_unknown_dragonfly,
x86_64_unknown_dragonfly,
x86_64_unknown_bitrig,
x86_64_unknown_openbsd,
x86_64_apple_darwin,
i686_apple_darwin,
i386_apple_ios,
x86_64_apple_ios,
aarch64_apple_ios,
armv7_apple_ios,
armv7s_apple_ios,
x86_64_pc_windows_gnu,
i686_pc_windows_gnu
);
let path = Path::new(target);
if path.is_file() {
return load_file(&path);
}
let path = {
let mut target = target.to_string();
target.push_str(".json");
Path::new(target)
};
let target_path = env::var_os("RUST_TARGET_PATH").unwrap_or(OsString::from_str(""));
for dir in env::split_paths(&target_path) {
let p = dir.join(path.clone());
if p.is_file() {
return load_file(&p);
}
}
Err(format!("Could not find specification for target {:?}", target))
}
}