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@@ -1,55 +1,4 @@
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-#[cfg(feature = "c")]
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-extern crate gcc;
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-extern crate rustc_cfg;
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-
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-#[cfg(feature = "c")]
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-use std::collections::BTreeMap;
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-use std::io::Write;
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-#[cfg(feature = "c")]
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-use std::path::Path;
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-use std::{env, io, process};
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-
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-use rustc_cfg::Cfg;
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-
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-#[cfg(feature = "c")]
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-struct Sources {
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- // SYMBOL -> PATH TO SOURCE
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- map: BTreeMap<&'static str, &'static str>,
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-}
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-
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-#[cfg(feature = "c")]
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-impl Sources {
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- fn new() -> Sources {
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- Sources { map: BTreeMap::new() }
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- }
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-
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- fn extend(&mut self, sources: &[&'static str]) {
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- // NOTE Some intrinsics have both a generic implementation (e.g.
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- // `floatdidf.c`) and an arch optimized implementation
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- // (`x86_64/floatdidf.c`). In those cases, we keep the arch optimized
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- // implementation and discard the generic implementation. If we don't
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- // and keep both implementations, the linker will yell at us about
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- // duplicate symbols!
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- for &src in sources {
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- let symbol = Path::new(src).file_stem().unwrap().to_str().unwrap();
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- if src.contains("/") {
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- // Arch-optimized implementation (preferred)
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- self.map.insert(symbol, src);
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- } else {
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- // Generic implementation
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- if !self.map.contains_key(symbol) {
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- self.map.insert(symbol, src);
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- }
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- }
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- }
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- }
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-
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- fn remove(&mut self, symbols: &[&str]) {
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- for symbol in symbols {
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- self.map.remove(*symbol).unwrap();
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- }
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- }
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-}
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+use std::env;
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fn main() {
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println!("cargo:rerun-if-changed=build.rs");
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@@ -61,376 +10,416 @@ fn main() {
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return;
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}
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- let Cfg { ref target_arch, ref target_os, ref target_env, ref target_vendor, .. } =
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- Cfg::new(&target).unwrap_or_else(|e| {
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- writeln!(io::stderr(), "{}", e).ok();
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- process::exit(1)
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- });
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// NOTE we are going to assume that llvm-target, what determines our codegen option, matches the
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// target triple. This is usually correct for our built-in targets but can break in presence of
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// custom targets, which can have arbitrary names.
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let llvm_target = target.split('-').collect::<Vec<_>>();
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// Build missing intrinsics from compiler-rt C source code
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- match () {
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- #[cfg(feature = "c")]
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- () => {
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- let target_vendor = target_vendor.as_ref().unwrap();
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- let cfg = &mut gcc::Config::new();
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-
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- if target_env == "msvc" {
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- // Don't pull in extra libraries on MSVC
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- cfg.flag("/Zl");
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-
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- // Emulate C99 and C++11's __func__ for MSVC prior to 2013 CTP
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- cfg.define("__func__", Some("__FUNCTION__"));
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- } else {
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- // Turn off various features of gcc and such, mostly copying
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- // compiler-rt's build system already
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- cfg.flag("-fno-builtin");
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- cfg.flag("-fvisibility=hidden");
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- cfg.flag("-fomit-frame-pointer");
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- cfg.flag("-ffreestanding");
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- cfg.define("VISIBILITY_HIDDEN", None);
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- }
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+ #[cfg(feature = "c")]
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+ c::compile(&llvm_target);
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- // NOTE Most of the ARM intrinsics are written in assembly. Tell gcc which arch we are going to
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- // target to make sure that the assembly implementations really work for the target. If the
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- // implementation is not valid for the arch, then gcc will error when compiling it.
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- if llvm_target[0].starts_with("thumb") {
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- cfg.flag("-mthumb");
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+ // To compile intrinsics.rs for thumb targets, where there is no libc
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+ if llvm_target[0].starts_with("thumb") {
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+ println!("cargo:rustc-cfg=thumb")
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+ }
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- if llvm_target.last() == Some(&"eabihf") {
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- cfg.flag("-mfloat-abi=hard");
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- }
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- }
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+ // compiler-rt `cfg`s away some intrinsics for thumbv6m because that target doesn't have full
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+ // THUMBv2 support. We have to cfg our code accordingly.
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+ if llvm_target[0] == "thumbv6m" {
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+ println!("cargo:rustc-cfg=thumbv6m")
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+ }
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+}
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- if llvm_target[0] == "thumbv6m" {
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- cfg.flag("-march=armv6-m");
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- }
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+#[cfg(feature = "c")]
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+mod c {
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+ extern crate gcc;
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- if llvm_target[0] == "thumbv7m" {
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- cfg.flag("-march=armv7-m");
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- }
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+ use std::collections::BTreeMap;
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+ use std::env;
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+ use std::io::Write;
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+ use std::path::Path;
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- if llvm_target[0] == "thumbv7em" {
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- cfg.flag("-march=armv7e-m");
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- }
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+ struct Sources {
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+ // SYMBOL -> PATH TO SOURCE
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+ map: BTreeMap<&'static str, &'static str>,
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+ }
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- let mut sources = Sources::new();
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- sources.extend(&["absvdi2.c",
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- "absvsi2.c",
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- "addvdi3.c",
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- "addvsi3.c",
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- "apple_versioning.c",
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- "clzdi2.c",
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- "clzsi2.c",
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- "cmpdi2.c",
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- "comparedf2.c",
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- "comparesf2.c",
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- "ctzdi2.c",
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- "ctzsi2.c",
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- "divdc3.c",
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- "divdf3.c",
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- "divsc3.c",
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- "divsf3.c",
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- "divxc3.c",
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- "extendsfdf2.c",
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- "extendhfsf2.c",
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- "ffsdi2.c",
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- "fixdfdi.c",
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- "fixdfsi.c",
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- "fixsfdi.c",
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- "fixsfsi.c",
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- "fixunsdfdi.c",
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- "fixunsdfsi.c",
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- "fixunssfdi.c",
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- "fixunssfsi.c",
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- "fixunsxfdi.c",
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- "fixunsxfsi.c",
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- "fixxfdi.c",
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- "floatdidf.c",
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- "floatdisf.c",
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- "floatdixf.c",
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- "floatsidf.c",
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- "floatsisf.c",
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- "floatundidf.c",
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- "floatundisf.c",
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- "floatundixf.c",
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- "floatunsidf.c",
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- "floatunsisf.c",
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- "int_util.c",
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- "muldc3.c",
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- "muldf3.c",
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- "mulsc3.c",
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- "mulsf3.c",
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- "mulvdi3.c",
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- "mulvsi3.c",
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- "mulxc3.c",
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- "negdf2.c",
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- "negdi2.c",
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- "negsf2.c",
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- "negvdi2.c",
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- "negvsi2.c",
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- "paritydi2.c",
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- "paritysi2.c",
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- "popcountdi2.c",
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- "popcountsi2.c",
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- "powixf2.c",
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- "subvdi3.c",
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- "subvsi3.c",
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- "truncdfhf2.c",
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- "truncdfsf2.c",
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- "truncsfhf2.c",
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- "ucmpdi2.c"]);
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-
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- if target_os != "ios" {
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- sources.extend(&["absvti2.c",
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- "addvti3.c",
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- "clzti2.c",
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- "cmpti2.c",
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- "ctzti2.c",
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- "ffsti2.c",
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- "fixdfti.c",
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- "fixsfti.c",
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- "fixunsdfti.c",
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- "fixunssfti.c",
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- "fixunsxfti.c",
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- "fixxfti.c",
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- "floattidf.c",
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- "floattisf.c",
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- "floattixf.c",
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- "floatuntidf.c",
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- "floatuntisf.c",
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- "floatuntixf.c",
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- "mulvti3.c",
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- "negti2.c",
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- "negvti2.c",
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- "parityti2.c",
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- "popcountti2.c",
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- "subvti3.c",
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- "ucmpti2.c"]);
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+ impl Sources {
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+ fn new() -> Sources {
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+ Sources { map: BTreeMap::new() }
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+ }
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+
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+ fn extend(&mut self, sources: &[&'static str]) {
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+ // NOTE Some intrinsics have both a generic implementation (e.g.
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+ // `floatdidf.c`) and an arch optimized implementation
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+ // (`x86_64/floatdidf.c`). In those cases, we keep the arch optimized
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+ // implementation and discard the generic implementation. If we don't
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+ // and keep both implementations, the linker will yell at us about
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+ // duplicate symbols!
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+ for &src in sources {
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+ let symbol = Path::new(src).file_stem().unwrap().to_str().unwrap();
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+ if src.contains("/") {
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+ // Arch-optimized implementation (preferred)
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+ self.map.insert(symbol, src);
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+ } else {
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+ // Generic implementation
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+ if !self.map.contains_key(symbol) {
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+ self.map.insert(symbol, src);
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+ }
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+ }
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}
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+ }
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- if target_vendor == "apple" {
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- sources.extend(&["atomic_flag_clear.c",
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- "atomic_flag_clear_explicit.c",
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- "atomic_flag_test_and_set.c",
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- "atomic_flag_test_and_set_explicit.c",
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- "atomic_signal_fence.c",
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- "atomic_thread_fence.c"]);
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+ fn remove(&mut self, symbols: &[&str]) {
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+ for symbol in symbols {
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+ self.map.remove(*symbol).unwrap();
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}
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+ }
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+ }
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- if target_env == "msvc" {
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- if target_arch == "x86_64" {
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- sources.extend(&["x86_64/floatdidf.c", "x86_64/floatdisf.c", "x86_64/floatdixf.c"]);
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- }
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- } else {
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- if target_os != "freebsd" && target_os != "netbsd" {
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- sources.extend(&["gcc_personality_v0.c"]);
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- }
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+ /// Compile intrinsics from the compiler-rt C source code
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+ pub fn compile(llvm_target: &[&str]){
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+ let target_arch = env::var("CARGO_CFG_TARGET_ARCH").unwrap();
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+ let target_env = env::var("CARGO_CFG_TARGET_ENV").unwrap();
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+ let target_os = env::var("CARGO_CFG_TARGET_OS").unwrap();
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+ let target_vendor = env::var("CARGO_CFG_TARGET_VENDOR").unwrap();
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+
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+ let cfg = &mut gcc::Config::new();
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+
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+ if target_env == "msvc" {
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+ // Don't pull in extra libraries on MSVC
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+ cfg.flag("/Zl");
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+
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+ // Emulate C99 and C++11's __func__ for MSVC prior to 2013 CTP
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+ cfg.define("__func__", Some("__FUNCTION__"));
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+ } else {
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+ // Turn off various features of gcc and such, mostly copying
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+ // compiler-rt's build system already
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+ cfg.flag("-fno-builtin");
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+ cfg.flag("-fvisibility=hidden");
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+ cfg.flag("-fomit-frame-pointer");
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+ cfg.flag("-ffreestanding");
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+ cfg.define("VISIBILITY_HIDDEN", None);
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+ }
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- if target_arch == "x86_64" {
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- sources.extend(&["x86_64/chkstk.S",
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- "x86_64/chkstk2.S",
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- "x86_64/floatdidf.c",
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- "x86_64/floatdisf.c",
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- "x86_64/floatdixf.c",
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- "x86_64/floatundidf.S",
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- "x86_64/floatundisf.S",
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- "x86_64/floatundixf.S"]);
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- }
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+ // NOTE Most of the ARM intrinsics are written in assembly. Tell gcc which arch we are going to
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+ // target to make sure that the assembly implementations really work for the target. If the
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+ // implementation is not valid for the arch, then gcc will error when compiling it.
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+ if llvm_target[0].starts_with("thumb") {
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+ cfg.flag("-mthumb");
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- if target_arch == "x86" {
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- sources.extend(&["i386/ashldi3.S",
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- "i386/ashrdi3.S",
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- "i386/chkstk.S",
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- "i386/chkstk2.S",
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- "i386/divdi3.S",
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- "i386/floatdidf.S",
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- "i386/floatdisf.S",
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- "i386/floatdixf.S",
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- "i386/floatundidf.S",
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- "i386/floatundisf.S",
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- "i386/floatundixf.S",
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- "i386/lshrdi3.S",
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- "i386/moddi3.S",
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- "i386/muldi3.S",
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- "i386/udivdi3.S",
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- "i386/umoddi3.S"]);
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- }
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+ if llvm_target.last() == Some(&"eabihf") {
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+ cfg.flag("-mfloat-abi=hard");
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}
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+ }
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- if target_arch == "arm" && target_os != "ios" {
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- sources.extend(&["arm/aeabi_cdcmp.S",
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- "arm/aeabi_cdcmpeq_check_nan.c",
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- "arm/aeabi_cfcmp.S",
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- "arm/aeabi_cfcmpeq_check_nan.c",
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- "arm/aeabi_dcmp.S",
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- "arm/aeabi_div0.c",
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- "arm/aeabi_drsub.c",
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- "arm/aeabi_fcmp.S",
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- "arm/aeabi_frsub.c",
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- "arm/bswapdi2.S",
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- "arm/bswapsi2.S",
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- "arm/clzdi2.S",
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- "arm/clzsi2.S",
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- "arm/comparesf2.S",
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- "arm/divmodsi4.S",
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- "arm/divsi3.S",
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- "arm/modsi3.S",
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- "arm/switch16.S",
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- "arm/switch32.S",
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- "arm/switch8.S",
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- "arm/switchu8.S",
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- "arm/sync_synchronize.S",
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- "arm/udivmodsi4.S",
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- "arm/udivsi3.S",
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- "arm/umodsi3.S"]);
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- }
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+ if llvm_target[0] == "thumbv6m" {
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+ cfg.flag("-march=armv6-m");
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+ }
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- if llvm_target[0] == "armv7" {
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- sources.extend(&["arm/sync_fetch_and_add_4.S",
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- "arm/sync_fetch_and_add_8.S",
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- "arm/sync_fetch_and_and_4.S",
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- "arm/sync_fetch_and_and_8.S",
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- "arm/sync_fetch_and_max_4.S",
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- "arm/sync_fetch_and_max_8.S",
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- "arm/sync_fetch_and_min_4.S",
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- "arm/sync_fetch_and_min_8.S",
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- "arm/sync_fetch_and_nand_4.S",
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- "arm/sync_fetch_and_nand_8.S",
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- "arm/sync_fetch_and_or_4.S",
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- "arm/sync_fetch_and_or_8.S",
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- "arm/sync_fetch_and_sub_4.S",
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|
|
- "arm/sync_fetch_and_sub_8.S",
|
|
|
- "arm/sync_fetch_and_umax_4.S",
|
|
|
- "arm/sync_fetch_and_umax_8.S",
|
|
|
- "arm/sync_fetch_and_umin_4.S",
|
|
|
- "arm/sync_fetch_and_umin_8.S",
|
|
|
- "arm/sync_fetch_and_xor_4.S",
|
|
|
- "arm/sync_fetch_and_xor_8.S"]);
|
|
|
- }
|
|
|
+ if llvm_target[0] == "thumbv7m" {
|
|
|
+ cfg.flag("-march=armv7-m");
|
|
|
+ }
|
|
|
|
|
|
- if llvm_target.last().unwrap().ends_with("eabihf") {
|
|
|
- if !llvm_target[0].starts_with("thumbv7em") {
|
|
|
- sources.extend(&["arm/adddf3vfp.S",
|
|
|
- "arm/addsf3vfp.S",
|
|
|
- "arm/divdf3vfp.S",
|
|
|
- "arm/divsf3vfp.S",
|
|
|
- "arm/eqdf2vfp.S",
|
|
|
- "arm/eqsf2vfp.S",
|
|
|
- "arm/extendsfdf2vfp.S",
|
|
|
- "arm/fixdfsivfp.S",
|
|
|
- "arm/fixsfsivfp.S",
|
|
|
- "arm/fixunsdfsivfp.S",
|
|
|
- "arm/fixunssfsivfp.S",
|
|
|
- "arm/floatsidfvfp.S",
|
|
|
- "arm/floatsisfvfp.S",
|
|
|
- "arm/floatunssidfvfp.S",
|
|
|
- "arm/floatunssisfvfp.S",
|
|
|
- "arm/gedf2vfp.S",
|
|
|
- "arm/gesf2vfp.S",
|
|
|
- "arm/gtdf2vfp.S",
|
|
|
- "arm/gtsf2vfp.S",
|
|
|
- "arm/ledf2vfp.S",
|
|
|
- "arm/lesf2vfp.S",
|
|
|
- "arm/ltdf2vfp.S",
|
|
|
- "arm/ltsf2vfp.S",
|
|
|
- "arm/muldf3vfp.S",
|
|
|
- "arm/mulsf3vfp.S",
|
|
|
- "arm/nedf2vfp.S",
|
|
|
- "arm/nesf2vfp.S",
|
|
|
- "arm/restore_vfp_d8_d15_regs.S",
|
|
|
- "arm/save_vfp_d8_d15_regs.S",
|
|
|
- "arm/subdf3vfp.S",
|
|
|
- "arm/subsf3vfp.S"]);
|
|
|
- }
|
|
|
+ if llvm_target[0] == "thumbv7em" {
|
|
|
+ cfg.flag("-march=armv7e-m");
|
|
|
+ }
|
|
|
|
|
|
- sources.extend(&["arm/negdf2vfp.S", "arm/negsf2vfp.S"]);
|
|
|
+ let mut sources = Sources::new();
|
|
|
+ sources.extend(&["absvdi2.c",
|
|
|
+ "absvsi2.c",
|
|
|
+ "addvdi3.c",
|
|
|
+ "addvsi3.c",
|
|
|
+ "apple_versioning.c",
|
|
|
+ "clzdi2.c",
|
|
|
+ "clzsi2.c",
|
|
|
+ "cmpdi2.c",
|
|
|
+ "comparedf2.c",
|
|
|
+ "comparesf2.c",
|
|
|
+ "ctzdi2.c",
|
|
|
+ "ctzsi2.c",
|
|
|
+ "divdc3.c",
|
|
|
+ "divdf3.c",
|
|
|
+ "divsc3.c",
|
|
|
+ "divsf3.c",
|
|
|
+ "divxc3.c",
|
|
|
+ "extendsfdf2.c",
|
|
|
+ "extendhfsf2.c",
|
|
|
+ "ffsdi2.c",
|
|
|
+ "fixdfdi.c",
|
|
|
+ "fixdfsi.c",
|
|
|
+ "fixsfdi.c",
|
|
|
+ "fixsfsi.c",
|
|
|
+ "fixunsdfdi.c",
|
|
|
+ "fixunsdfsi.c",
|
|
|
+ "fixunssfdi.c",
|
|
|
+ "fixunssfsi.c",
|
|
|
+ "fixunsxfdi.c",
|
|
|
+ "fixunsxfsi.c",
|
|
|
+ "fixxfdi.c",
|
|
|
+ "floatdidf.c",
|
|
|
+ "floatdisf.c",
|
|
|
+ "floatdixf.c",
|
|
|
+ "floatsidf.c",
|
|
|
+ "floatsisf.c",
|
|
|
+ "floatundidf.c",
|
|
|
+ "floatundisf.c",
|
|
|
+ "floatundixf.c",
|
|
|
+ "floatunsidf.c",
|
|
|
+ "floatunsisf.c",
|
|
|
+ "int_util.c",
|
|
|
+ "muldc3.c",
|
|
|
+ "muldf3.c",
|
|
|
+ "mulsc3.c",
|
|
|
+ "mulsf3.c",
|
|
|
+ "mulvdi3.c",
|
|
|
+ "mulvsi3.c",
|
|
|
+ "mulxc3.c",
|
|
|
+ "negdf2.c",
|
|
|
+ "negdi2.c",
|
|
|
+ "negsf2.c",
|
|
|
+ "negvdi2.c",
|
|
|
+ "negvsi2.c",
|
|
|
+ "paritydi2.c",
|
|
|
+ "paritysi2.c",
|
|
|
+ "popcountdi2.c",
|
|
|
+ "popcountsi2.c",
|
|
|
+ "powixf2.c",
|
|
|
+ "subvdi3.c",
|
|
|
+ "subvsi3.c",
|
|
|
+ "truncdfhf2.c",
|
|
|
+ "truncdfsf2.c",
|
|
|
+ "truncsfhf2.c",
|
|
|
+ "ucmpdi2.c"]);
|
|
|
+
|
|
|
+ if target_os != "ios" {
|
|
|
+ sources.extend(&["absvti2.c",
|
|
|
+ "addvti3.c",
|
|
|
+ "clzti2.c",
|
|
|
+ "cmpti2.c",
|
|
|
+ "ctzti2.c",
|
|
|
+ "ffsti2.c",
|
|
|
+ "fixdfti.c",
|
|
|
+ "fixsfti.c",
|
|
|
+ "fixunsdfti.c",
|
|
|
+ "fixunssfti.c",
|
|
|
+ "fixunsxfti.c",
|
|
|
+ "fixxfti.c",
|
|
|
+ "floattidf.c",
|
|
|
+ "floattisf.c",
|
|
|
+ "floattixf.c",
|
|
|
+ "floatuntidf.c",
|
|
|
+ "floatuntisf.c",
|
|
|
+ "floatuntixf.c",
|
|
|
+ "mulvti3.c",
|
|
|
+ "negti2.c",
|
|
|
+ "negvti2.c",
|
|
|
+ "parityti2.c",
|
|
|
+ "popcountti2.c",
|
|
|
+ "subvti3.c",
|
|
|
+ "ucmpti2.c"]);
|
|
|
+ }
|
|
|
|
|
|
- }
|
|
|
+ if target_vendor == "apple" {
|
|
|
+ sources.extend(&["atomic_flag_clear.c",
|
|
|
+ "atomic_flag_clear_explicit.c",
|
|
|
+ "atomic_flag_test_and_set.c",
|
|
|
+ "atomic_flag_test_and_set_explicit.c",
|
|
|
+ "atomic_signal_fence.c",
|
|
|
+ "atomic_thread_fence.c"]);
|
|
|
+ }
|
|
|
|
|
|
- if target_arch == "aarch64" {
|
|
|
- sources.extend(&["comparetf2.c",
|
|
|
- "extenddftf2.c",
|
|
|
- "extendsftf2.c",
|
|
|
- "fixtfdi.c",
|
|
|
- "fixtfsi.c",
|
|
|
- "fixtfti.c",
|
|
|
- "fixunstfdi.c",
|
|
|
- "fixunstfsi.c",
|
|
|
- "fixunstfti.c",
|
|
|
- "floatditf.c",
|
|
|
- "floatsitf.c",
|
|
|
- "floatunditf.c",
|
|
|
- "floatunsitf.c",
|
|
|
- "multc3.c",
|
|
|
- "trunctfdf2.c",
|
|
|
- "trunctfsf2.c"]);
|
|
|
+ if target_env == "msvc" {
|
|
|
+ if target_arch == "x86_64" {
|
|
|
+ sources.extend(&["x86_64/floatdidf.c", "x86_64/floatdisf.c", "x86_64/floatdixf.c"]);
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ if target_os != "freebsd" && target_os != "netbsd" {
|
|
|
+ sources.extend(&["gcc_personality_v0.c"]);
|
|
|
}
|
|
|
|
|
|
- // Remove the assembly implementations that won't compile for the target
|
|
|
- if llvm_target[0] == "thumbv6m" {
|
|
|
- sources.remove(&["aeabi_cdcmp",
|
|
|
- "aeabi_cfcmp",
|
|
|
- "aeabi_dcmp",
|
|
|
- "aeabi_fcmp",
|
|
|
- "clzdi2",
|
|
|
- "clzsi2",
|
|
|
- "comparesf2",
|
|
|
- "divmodsi4",
|
|
|
- "divsi3",
|
|
|
- "modsi3",
|
|
|
- "switch16",
|
|
|
- "switch32",
|
|
|
- "switch8",
|
|
|
- "switchu8",
|
|
|
- "udivmodsi4",
|
|
|
- "udivsi3",
|
|
|
- "umodsi3"]);
|
|
|
-
|
|
|
- // But use some generic implementations where possible
|
|
|
- sources.extend(&["clzdi2.c", "clzsi2.c"])
|
|
|
+ if target_arch == "x86_64" {
|
|
|
+ sources.extend(&["x86_64/chkstk.S",
|
|
|
+ "x86_64/chkstk2.S",
|
|
|
+ "x86_64/floatdidf.c",
|
|
|
+ "x86_64/floatdisf.c",
|
|
|
+ "x86_64/floatdixf.c",
|
|
|
+ "x86_64/floatundidf.S",
|
|
|
+ "x86_64/floatundisf.S",
|
|
|
+ "x86_64/floatundixf.S"]);
|
|
|
}
|
|
|
|
|
|
- if llvm_target[0] == "thumbv7m" || llvm_target[0] == "thumbv7em" {
|
|
|
- sources.remove(&["aeabi_cdcmp", "aeabi_cfcmp"]);
|
|
|
+ if target_arch == "x86" {
|
|
|
+ sources.extend(&["i386/ashldi3.S",
|
|
|
+ "i386/ashrdi3.S",
|
|
|
+ "i386/chkstk.S",
|
|
|
+ "i386/chkstk2.S",
|
|
|
+ "i386/divdi3.S",
|
|
|
+ "i386/floatdidf.S",
|
|
|
+ "i386/floatdisf.S",
|
|
|
+ "i386/floatdixf.S",
|
|
|
+ "i386/floatundidf.S",
|
|
|
+ "i386/floatundisf.S",
|
|
|
+ "i386/floatundixf.S",
|
|
|
+ "i386/lshrdi3.S",
|
|
|
+ "i386/moddi3.S",
|
|
|
+ "i386/muldi3.S",
|
|
|
+ "i386/udivdi3.S",
|
|
|
+ "i386/umoddi3.S"]);
|
|
|
}
|
|
|
+ }
|
|
|
|
|
|
- let root = if env::var_os("CARGO_FEATURE_RUSTBUILD").is_some() {
|
|
|
- Path::new("../../libcompiler_builtins")
|
|
|
- } else {
|
|
|
- Path::new(".")
|
|
|
- };
|
|
|
-
|
|
|
- let src_dir = root.join("compiler-rt/compiler-rt-cdylib/compiler-rt/lib/builtins");
|
|
|
- for src in sources.map.values() {
|
|
|
- let src = src_dir.join(src);
|
|
|
- cfg.file(&src);
|
|
|
- println!("cargo:rerun-if-changed={}", src.display());
|
|
|
+ if target_arch == "arm" && target_os != "ios" {
|
|
|
+ sources.extend(&["arm/aeabi_cdcmp.S",
|
|
|
+ "arm/aeabi_cdcmpeq_check_nan.c",
|
|
|
+ "arm/aeabi_cfcmp.S",
|
|
|
+ "arm/aeabi_cfcmpeq_check_nan.c",
|
|
|
+ "arm/aeabi_dcmp.S",
|
|
|
+ "arm/aeabi_div0.c",
|
|
|
+ "arm/aeabi_drsub.c",
|
|
|
+ "arm/aeabi_fcmp.S",
|
|
|
+ "arm/aeabi_frsub.c",
|
|
|
+ "arm/bswapdi2.S",
|
|
|
+ "arm/bswapsi2.S",
|
|
|
+ "arm/clzdi2.S",
|
|
|
+ "arm/clzsi2.S",
|
|
|
+ "arm/comparesf2.S",
|
|
|
+ "arm/divmodsi4.S",
|
|
|
+ "arm/divsi3.S",
|
|
|
+ "arm/modsi3.S",
|
|
|
+ "arm/switch16.S",
|
|
|
+ "arm/switch32.S",
|
|
|
+ "arm/switch8.S",
|
|
|
+ "arm/switchu8.S",
|
|
|
+ "arm/sync_synchronize.S",
|
|
|
+ "arm/udivmodsi4.S",
|
|
|
+ "arm/udivsi3.S",
|
|
|
+ "arm/umodsi3.S"]);
|
|
|
+ }
|
|
|
+
|
|
|
+ if llvm_target[0] == "armv7" {
|
|
|
+ sources.extend(&["arm/sync_fetch_and_add_4.S",
|
|
|
+ "arm/sync_fetch_and_add_8.S",
|
|
|
+ "arm/sync_fetch_and_and_4.S",
|
|
|
+ "arm/sync_fetch_and_and_8.S",
|
|
|
+ "arm/sync_fetch_and_max_4.S",
|
|
|
+ "arm/sync_fetch_and_max_8.S",
|
|
|
+ "arm/sync_fetch_and_min_4.S",
|
|
|
+ "arm/sync_fetch_and_min_8.S",
|
|
|
+ "arm/sync_fetch_and_nand_4.S",
|
|
|
+ "arm/sync_fetch_and_nand_8.S",
|
|
|
+ "arm/sync_fetch_and_or_4.S",
|
|
|
+ "arm/sync_fetch_and_or_8.S",
|
|
|
+ "arm/sync_fetch_and_sub_4.S",
|
|
|
+ "arm/sync_fetch_and_sub_8.S",
|
|
|
+ "arm/sync_fetch_and_umax_4.S",
|
|
|
+ "arm/sync_fetch_and_umax_8.S",
|
|
|
+ "arm/sync_fetch_and_umin_4.S",
|
|
|
+ "arm/sync_fetch_and_umin_8.S",
|
|
|
+ "arm/sync_fetch_and_xor_4.S",
|
|
|
+ "arm/sync_fetch_and_xor_8.S"]);
|
|
|
+ }
|
|
|
+
|
|
|
+ if llvm_target.last().unwrap().ends_with("eabihf") {
|
|
|
+ if !llvm_target[0].starts_with("thumbv7em") {
|
|
|
+ sources.extend(&["arm/adddf3vfp.S",
|
|
|
+ "arm/addsf3vfp.S",
|
|
|
+ "arm/divdf3vfp.S",
|
|
|
+ "arm/divsf3vfp.S",
|
|
|
+ "arm/eqdf2vfp.S",
|
|
|
+ "arm/eqsf2vfp.S",
|
|
|
+ "arm/extendsfdf2vfp.S",
|
|
|
+ "arm/fixdfsivfp.S",
|
|
|
+ "arm/fixsfsivfp.S",
|
|
|
+ "arm/fixunsdfsivfp.S",
|
|
|
+ "arm/fixunssfsivfp.S",
|
|
|
+ "arm/floatsidfvfp.S",
|
|
|
+ "arm/floatsisfvfp.S",
|
|
|
+ "arm/floatunssidfvfp.S",
|
|
|
+ "arm/floatunssisfvfp.S",
|
|
|
+ "arm/gedf2vfp.S",
|
|
|
+ "arm/gesf2vfp.S",
|
|
|
+ "arm/gtdf2vfp.S",
|
|
|
+ "arm/gtsf2vfp.S",
|
|
|
+ "arm/ledf2vfp.S",
|
|
|
+ "arm/lesf2vfp.S",
|
|
|
+ "arm/ltdf2vfp.S",
|
|
|
+ "arm/ltsf2vfp.S",
|
|
|
+ "arm/muldf3vfp.S",
|
|
|
+ "arm/mulsf3vfp.S",
|
|
|
+ "arm/nedf2vfp.S",
|
|
|
+ "arm/nesf2vfp.S",
|
|
|
+ "arm/restore_vfp_d8_d15_regs.S",
|
|
|
+ "arm/save_vfp_d8_d15_regs.S",
|
|
|
+ "arm/subdf3vfp.S",
|
|
|
+ "arm/subsf3vfp.S"]);
|
|
|
}
|
|
|
|
|
|
- cfg.compile("libcompiler-rt.a");
|
|
|
+ sources.extend(&["arm/negdf2vfp.S", "arm/negsf2vfp.S"]);
|
|
|
+
|
|
|
}
|
|
|
- #[cfg(not(feature = "c"))]
|
|
|
- () => {}
|
|
|
- }
|
|
|
|
|
|
- // To filter away some flaky test (see src/float/add.rs for details)
|
|
|
- if llvm_target[0].starts_with("arm") &&
|
|
|
- llvm_target.last().unwrap().contains("gnueabi") {
|
|
|
- println!("cargo:rustc-cfg=arm_linux")
|
|
|
- }
|
|
|
+ if target_arch == "aarch64" {
|
|
|
+ sources.extend(&["comparetf2.c",
|
|
|
+ "extenddftf2.c",
|
|
|
+ "extendsftf2.c",
|
|
|
+ "fixtfdi.c",
|
|
|
+ "fixtfsi.c",
|
|
|
+ "fixtfti.c",
|
|
|
+ "fixunstfdi.c",
|
|
|
+ "fixunstfsi.c",
|
|
|
+ "fixunstfti.c",
|
|
|
+ "floatditf.c",
|
|
|
+ "floatsitf.c",
|
|
|
+ "floatunditf.c",
|
|
|
+ "floatunsitf.c",
|
|
|
+ "multc3.c",
|
|
|
+ "trunctfdf2.c",
|
|
|
+ "trunctfsf2.c"]);
|
|
|
+ }
|
|
|
|
|
|
- // To compile intrinsics.rs for thumb targets, where there is no libc
|
|
|
- if llvm_target[0].starts_with("thumb") {
|
|
|
- println!("cargo:rustc-cfg=thumb")
|
|
|
- }
|
|
|
+ // Remove the assembly implementations that won't compile for the target
|
|
|
+ if llvm_target[0] == "thumbv6m" {
|
|
|
+ sources.remove(&["aeabi_cdcmp",
|
|
|
+ "aeabi_cfcmp",
|
|
|
+ "aeabi_dcmp",
|
|
|
+ "aeabi_fcmp",
|
|
|
+ "clzdi2",
|
|
|
+ "clzsi2",
|
|
|
+ "comparesf2",
|
|
|
+ "divmodsi4",
|
|
|
+ "divsi3",
|
|
|
+ "modsi3",
|
|
|
+ "switch16",
|
|
|
+ "switch32",
|
|
|
+ "switch8",
|
|
|
+ "switchu8",
|
|
|
+ "udivmodsi4",
|
|
|
+ "udivsi3",
|
|
|
+ "umodsi3"]);
|
|
|
+
|
|
|
+ // But use some generic implementations where possible
|
|
|
+ sources.extend(&["clzdi2.c", "clzsi2.c"])
|
|
|
+ }
|
|
|
|
|
|
- // compiler-rt `cfg`s away some intrinsics for thumbv6m because that target doesn't have full
|
|
|
- // THUMBv2 support. We have to cfg our code accordingly.
|
|
|
- if llvm_target[0] == "thumbv6m" {
|
|
|
- println!("cargo:rustc-cfg=thumbv6m")
|
|
|
+ if llvm_target[0] == "thumbv7m" || llvm_target[0] == "thumbv7em" {
|
|
|
+ sources.remove(&["aeabi_cdcmp", "aeabi_cfcmp"]);
|
|
|
+ }
|
|
|
+
|
|
|
+ let root = if env::var_os("CARGO_FEATURE_RUSTBUILD").is_some() {
|
|
|
+ Path::new("../../libcompiler_builtins")
|
|
|
+ } else {
|
|
|
+ Path::new(".")
|
|
|
+ };
|
|
|
+
|
|
|
+ let src_dir = root.join("c/compiler-rt/lib/builtins");
|
|
|
+ for src in sources.map.values() {
|
|
|
+ let src = src_dir.join(src);
|
|
|
+ cfg.file(&src);
|
|
|
+ println!("cargo:rerun-if-changed={}", src.display());
|
|
|
+ }
|
|
|
+
|
|
|
+ cfg.compile("libcompiler-rt.a");
|
|
|
}
|
|
|
}
|
Jorge Aparicio