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authorDaniel Mueller <deso@posteo.net>2019-01-01 18:34:02 -0800
committerDaniel Mueller <deso@posteo.net>2019-01-01 18:34:02 -0800
commit282506f7d1ef1c14cb922d6fde4b2dd52e03affa (patch)
tree7c51b4715f010bd95ba64d87c0cd2cc81199a729 /cc/src/lib.rs
parent097ee0ae905f1c0c09b21b30eafb421392aaef75 (diff)
downloadnitrocli-282506f7d1ef1c14cb922d6fde4b2dd52e03affa.tar.gz
nitrocli-282506f7d1ef1c14cb922d6fde4b2dd52e03affa.tar.bz2
Update cc crate to 1.0.28
This change updates the cc crate to version 1.0.28. Import subrepo cc/:cc at 9490b5ecb43b8b926f96a7e484fa83e39620d8e5
Diffstat (limited to 'cc/src/lib.rs')
-rw-r--r--cc/src/lib.rs54
1 files changed, 54 insertions, 0 deletions
diff --git a/cc/src/lib.rs b/cc/src/lib.rs
index 7672cf4..5eebd07 100644
--- a/cc/src/lib.rs
+++ b/cc/src/lib.rs
@@ -55,6 +55,7 @@
#![doc(html_root_url = "https://docs.rs/cc/1.0")]
#![cfg_attr(test, deny(warnings))]
+#![allow(deprecated)]
#![deny(missing_docs)]
#[cfg(feature = "parallel")]
@@ -112,6 +113,7 @@ pub struct Build {
archiver: Option<PathBuf>,
cargo_metadata: bool,
pic: Option<bool>,
+ use_plt: Option<bool>,
static_crt: Option<bool>,
shared_flag: Option<bool>,
static_flag: Option<bool>,
@@ -319,6 +321,7 @@ impl Build {
archiver: None,
cargo_metadata: true,
pic: None,
+ use_plt: None,
static_crt: None,
warnings: None,
extra_warnings: None,
@@ -822,6 +825,21 @@ impl Build {
self
}
+ /// Configures whether the Procedure Linkage Table is used for indirect
+ /// calls into shared libraries.
+ ///
+ /// The PLT is used to provide features like lazy binding, but introduces
+ /// a small performance loss due to extra pointer indirection. Setting
+ /// `use_plt` to `false` can provide a small performance increase.
+ ///
+ /// Note that skipping the PLT requires a recent version of GCC/Clang.
+ ///
+ /// This only applies to ELF targets. It has no effect on other platforms.
+ pub fn use_plt(&mut self, use_plt: bool) -> &mut Build {
+ self.use_plt = Some(use_plt);
+ self
+ }
+
/// 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.
@@ -1123,6 +1141,11 @@ impl Build {
}
if self.pic.unwrap_or(!target.contains("windows-gnu")) {
cmd.push_cc_arg("-fPIC".into());
+ // PLT only applies if code is compiled with PIC support,
+ // and only for ELF targets.
+ if target.contains("linux") && !self.use_plt.unwrap_or(true) {
+ cmd.push_cc_arg("-fno-plt".into());
+ }
}
}
}
@@ -1159,6 +1182,19 @@ impl Build {
cmd.args.push("/ARCH:IA32".into());
}
}
+
+ // There is a check in corecrt.h that will generate a
+ // compilation error if
+ // _ARM_WINAPI_PARTITION_DESKTOP_SDK_AVAILABLE is
+ // not defined to 1. The check was added in Windows
+ // 8 days because only store apps were allowed on ARM.
+ // This changed with the release of Windows 10 IoT Core.
+ // The check will be going away in future versions of
+ // the SDK, but for all released versions of the
+ // Windows SDK it is required.
+ if target.contains("arm") || target.contains("thumb") {
+ cmd.args.push("/D_ARM_WINAPI_PARTITION_DESKTOP_SDK_AVAILABLE=1".into());
+ }
}
ToolFamily::Gnu => {
if target.contains("i686") || target.contains("i586") {
@@ -1214,6 +1250,11 @@ impl Build {
if target.starts_with("arm-unknown-linux-") {
cmd.args.push("-march=armv6".into());
cmd.args.push("-marm".into());
+ if target.ends_with("hf") {
+ cmd.args.push("-mfpu=vfp".into());
+ } else {
+ cmd.args.push("-mfloat-abi=soft".into());
+ }
}
// We can guarantee some settings for FRC
@@ -1264,6 +1305,16 @@ impl Build {
if target.starts_with("thumbv7m") {
cmd.args.push("-march=armv7-m".into());
}
+ if target.starts_with("thumbv8m.base") {
+ cmd.args.push("-march=armv8-m.base".into());
+ }
+ if target.starts_with("thumbv8m.main") {
+ cmd.args.push("-march=armv8-m.main".into());
+
+ if target.ends_with("eabihf") {
+ cmd.args.push("-mfpu=fpv5-sp-d16".into())
+ }
+ }
if target.starts_with("armebv7r") | target.starts_with("armv7r") {
if target.starts_with("armeb") {
cmd.args.push("-mbig-endian".into());
@@ -1718,6 +1769,9 @@ impl Build {
"thumbv7em-none-eabi" => Some("arm-none-eabi"),
"thumbv7em-none-eabihf" => Some("arm-none-eabi"),
"thumbv7m-none-eabi" => Some("arm-none-eabi"),
+ "thumbv8m.base-none-eabi" => Some("arm-none-eabi"),
+ "thumbv8m.main-none-eabi" => Some("arm-none-eabi"),
+ "thumbv8m.main-none-eabihf" => Some("arm-none-eabi"),
"x86_64-pc-windows-gnu" => Some("x86_64-w64-mingw32"),
"x86_64-rumprun-netbsd" => Some("x86_64-rumprun-netbsd"),
"x86_64-unknown-linux-musl" => Some("musl"),