extern crate cc;
extern crate cc_version;
use cc_version::{cc_version, Version};
use std::env;
use std::path::Path;
#[cfg(feature = "8086")]
const SPECIALIZED_PATH: &str = "8086";
#[cfg(feature = "8086-sse")]
const SPECIALIZED_PATH: &str = "8086-SSE";
#[cfg(feature = "arm-vfpv2")]
const SPECIALIZED_PATH: &str = "ARM-VFPv2";
#[cfg(feature = "arm-vfpv2-defaultnan")]
const SPECIALIZED_PATH: &str = "ARM-VFPv2-defaultNaN";
#[cfg(feature = "riscv")]
const SPECIALIZED_PATH: &str = "RISCV";
fn main() {
let mut builder = cc::Build::new();
let tool = builder.get_compiler();
let thread_local = if tool.is_like_gnu() {
let version = cc_version(&tool).expect("Failed to detect GCC version");
if version >= Version::parse("4.9").unwrap() {
Some("_Thread_local")
} else {
Some("__thread")
}
} else {
Some("_Thread_local")
};
let softfloat_base = Path::new("berkeley-softfloat-3");
let softfloat_source = softfloat_base.join(Path::new("source"));
let softfloat_build = softfloat_base.join(Path::new("build"));
if cfg!(all(target_arch = "x86_64", target_os = "linux")) {
let primitive_sources = [
"s_eq128.c",
"s_le128.c",
"s_lt128.c",
"s_shortShiftLeft128.c",
"s_shortShiftRight128.c",
"s_shortShiftRightJam64.c",
"s_shortShiftRightJam64Extra.c",
"s_shortShiftRightJam128.c",
"s_shortShiftRightJam128Extra.c",
"s_shiftRightJam32.c",
"s_shiftRightJam64.c",
"s_shiftRightJam64Extra.c",
"s_shiftRightJam128.c",
"s_shiftRightJam128Extra.c",
"s_shiftRightJam256M.c",
"s_countLeadingZeros8.c",
"s_countLeadingZeros16.c",
"s_countLeadingZeros32.c",
"s_countLeadingZeros64.c",
"s_add128.c",
"s_add256M.c",
"s_sub128.c",
"s_sub256M.c",
"s_mul64ByShifted32To128.c",
"s_mul64To128.c",
"s_mul128By32.c",
"s_mul128To256M.c",
"s_approxRecip_1Ks.c",
"s_approxRecip32_1.c",
"s_approxRecipSqrt_1Ks.c",
"s_approxRecipSqrt32_1.c",
];
let specialize_sources = [
"softfloat_raiseFlags.c",
"s_f16UIToCommonNaN.c",
"s_commonNaNToF16UI.c",
"s_propagateNaNF16UI.c",
"s_f32UIToCommonNaN.c",
"s_commonNaNToF32UI.c",
"s_propagateNaNF32UI.c",
"s_f64UIToCommonNaN.c",
"s_commonNaNToF64UI.c",
"s_propagateNaNF64UI.c",
"extF80M_isSignalingNaN.c",
"s_extF80UIToCommonNaN.c",
"s_commonNaNToExtF80UI.c",
"s_propagateNaNExtF80UI.c",
"f128M_isSignalingNaN.c",
"s_f128UIToCommonNaN.c",
"s_commonNaNToF128UI.c",
"s_propagateNaNF128UI.c",
];
let other_sources = [
"s_roundToUI32.c",
"s_roundToUI64.c",
"s_roundToI32.c",
"s_roundToI64.c",
"s_normSubnormalF16Sig.c",
"s_roundPackToF16.c",
"s_normRoundPackToF16.c",
"s_addMagsF16.c",
"s_subMagsF16.c",
"s_mulAddF16.c",
"s_normSubnormalF32Sig.c",
"s_roundPackToF32.c",
"s_normRoundPackToF32.c",
"s_addMagsF32.c",
"s_subMagsF32.c",
"s_mulAddF32.c",
"s_normSubnormalF64Sig.c",
"s_roundPackToF64.c",
"s_normRoundPackToF64.c",
"s_addMagsF64.c",
"s_subMagsF64.c",
"s_mulAddF64.c",
"s_normSubnormalExtF80Sig.c",
"s_roundPackToExtF80.c",
"s_normRoundPackToExtF80.c",
"s_addMagsExtF80.c",
"s_subMagsExtF80.c",
"s_normSubnormalF128Sig.c",
"s_roundPackToF128.c",
"s_normRoundPackToF128.c",
"s_addMagsF128.c",
"s_subMagsF128.c",
"s_mulAddF128.c",
"softfloat_state.c",
"ui32_to_f16.c",
"ui32_to_f32.c",
"ui32_to_f64.c",
"ui32_to_extF80.c",
"ui32_to_extF80M.c",
"ui32_to_f128.c",
"ui32_to_f128M.c",
"ui64_to_f16.c",
"ui64_to_f32.c",
"ui64_to_f64.c",
"ui64_to_extF80.c",
"ui64_to_extF80M.c",
"ui64_to_f128.c",
"ui64_to_f128M.c",
"i32_to_f16.c",
"i32_to_f32.c",
"i32_to_f64.c",
"i32_to_extF80.c",
"i32_to_extF80M.c",
"i32_to_f128.c",
"i32_to_f128M.c",
"i64_to_f16.c",
"i64_to_f32.c",
"i64_to_f64.c",
"i64_to_extF80.c",
"i64_to_extF80M.c",
"i64_to_f128.c",
"i64_to_f128M.c",
"f16_to_ui32.c",
"f16_to_ui64.c",
"f16_to_i32.c",
"f16_to_i64.c",
"f16_to_ui32_r_minMag.c",
"f16_to_ui64_r_minMag.c",
"f16_to_i32_r_minMag.c",
"f16_to_i64_r_minMag.c",
"f16_to_f32.c",
"f16_to_f64.c",
"f16_to_extF80.c",
"f16_to_extF80M.c",
"f16_to_f128.c",
"f16_to_f128M.c",
"f16_roundToInt.c",
"f16_add.c",
"f16_sub.c",
"f16_mul.c",
"f16_mulAdd.c",
"f16_div.c",
"f16_rem.c",
"f16_sqrt.c",
"f16_eq.c",
"f16_le.c",
"f16_lt.c",
"f16_eq_signaling.c",
"f16_le_quiet.c",
"f16_lt_quiet.c",
"f16_isSignalingNaN.c",
"f32_to_ui32.c",
"f32_to_ui64.c",
"f32_to_i32.c",
"f32_to_i64.c",
"f32_to_ui32_r_minMag.c",
"f32_to_ui64_r_minMag.c",
"f32_to_i32_r_minMag.c",
"f32_to_i64_r_minMag.c",
"f32_to_f16.c",
"f32_to_f64.c",
"f32_to_extF80.c",
"f32_to_extF80M.c",
"f32_to_f128.c",
"f32_to_f128M.c",
"f32_roundToInt.c",
"f32_add.c",
"f32_sub.c",
"f32_mul.c",
"f32_mulAdd.c",
"f32_div.c",
"f32_rem.c",
"f32_sqrt.c",
"f32_eq.c",
"f32_le.c",
"f32_lt.c",
"f32_eq_signaling.c",
"f32_le_quiet.c",
"f32_lt_quiet.c",
"f32_isSignalingNaN.c",
"f64_to_ui32.c",
"f64_to_ui64.c",
"f64_to_i32.c",
"f64_to_i64.c",
"f64_to_ui32_r_minMag.c",
"f64_to_ui64_r_minMag.c",
"f64_to_i32_r_minMag.c",
"f64_to_i64_r_minMag.c",
"f64_to_f16.c",
"f64_to_f32.c",
"f64_to_extF80.c",
"f64_to_extF80M.c",
"f64_to_f128.c",
"f64_to_f128M.c",
"f64_roundToInt.c",
"f64_add.c",
"f64_sub.c",
"f64_mul.c",
"f64_mulAdd.c",
"f64_div.c",
"f64_rem.c",
"f64_sqrt.c",
"f64_eq.c",
"f64_le.c",
"f64_lt.c",
"f64_eq_signaling.c",
"f64_le_quiet.c",
"f64_lt_quiet.c",
"f64_isSignalingNaN.c",
"extF80_to_ui32.c",
"extF80_to_ui64.c",
"extF80_to_i32.c",
"extF80_to_i64.c",
"extF80_to_ui32_r_minMag.c",
"extF80_to_ui64_r_minMag.c",
"extF80_to_i32_r_minMag.c",
"extF80_to_i64_r_minMag.c",
"extF80_to_f16.c",
"extF80_to_f32.c",
"extF80_to_f64.c",
"extF80_to_f128.c",
"extF80_roundToInt.c",
"extF80_add.c",
"extF80_sub.c",
"extF80_mul.c",
"extF80_div.c",
"extF80_rem.c",
"extF80_sqrt.c",
"extF80_eq.c",
"extF80_le.c",
"extF80_lt.c",
"extF80_eq_signaling.c",
"extF80_le_quiet.c",
"extF80_lt_quiet.c",
"extF80_isSignalingNaN.c",
"extF80M_to_ui32.c",
"extF80M_to_ui64.c",
"extF80M_to_i32.c",
"extF80M_to_i64.c",
"extF80M_to_ui32_r_minMag.c",
"extF80M_to_ui64_r_minMag.c",
"extF80M_to_i32_r_minMag.c",
"extF80M_to_i64_r_minMag.c",
"extF80M_to_f16.c",
"extF80M_to_f32.c",
"extF80M_to_f64.c",
"extF80M_to_f128M.c",
"extF80M_roundToInt.c",
"extF80M_add.c",
"extF80M_sub.c",
"extF80M_mul.c",
"extF80M_div.c",
"extF80M_rem.c",
"extF80M_sqrt.c",
"extF80M_eq.c",
"extF80M_le.c",
"extF80M_lt.c",
"extF80M_eq_signaling.c",
"extF80M_le_quiet.c",
"extF80M_lt_quiet.c",
"f128_to_ui32.c",
"f128_to_ui64.c",
"f128_to_i32.c",
"f128_to_i64.c",
"f128_to_ui32_r_minMag.c",
"f128_to_ui64_r_minMag.c",
"f128_to_i32_r_minMag.c",
"f128_to_i64_r_minMag.c",
"f128_to_f16.c",
"f128_to_f32.c",
"f128_to_extF80.c",
"f128_to_f64.c",
"f128_roundToInt.c",
"f128_add.c",
"f128_sub.c",
"f128_mul.c",
"f128_mulAdd.c",
"f128_div.c",
"f128_rem.c",
"f128_sqrt.c",
"f128_eq.c",
"f128_le.c",
"f128_lt.c",
"f128_eq_signaling.c",
"f128_le_quiet.c",
"f128_lt_quiet.c",
"f128_isSignalingNaN.c",
"f128M_to_ui32.c",
"f128M_to_ui64.c",
"f128M_to_i32.c",
"f128M_to_i64.c",
"f128M_to_ui32_r_minMag.c",
"f128M_to_ui64_r_minMag.c",
"f128M_to_i32_r_minMag.c",
"f128M_to_i64_r_minMag.c",
"f128M_to_f16.c",
"f128M_to_f32.c",
"f128M_to_extF80M.c",
"f128M_to_f64.c",
"f128M_roundToInt.c",
"f128M_add.c",
"f128M_sub.c",
"f128M_mul.c",
"f128M_mulAdd.c",
"f128M_div.c",
"f128M_rem.c",
"f128M_sqrt.c",
"f128M_eq.c",
"f128M_le.c",
"f128M_lt.c",
"f128M_eq_signaling.c",
"f128M_le_quiet.c",
"f128M_lt_quiet.c",
];
let specialized_source_path = softfloat_source.join(Path::new(SPECIALIZED_PATH));
builder
.include(softfloat_build.join(Path::new("Linux-x86_64-GCC")))
.include(&specialized_source_path)
.define("SOFTFLOAT_ROUND_ODD", None)
.define("INLINE_LEVEL", Some("5"))
.define("SOFTFLOAT_FAST_DIV32TO16", None)
.define("SOFTFLOAT_FAST_DIV64TO32", None)
.define("SOFTFLOAT_FAST_INT64", None)
.define("THREAD_LOCAL", thread_local)
.files(
primitive_sources
.iter()
.chain(other_sources.iter())
.map(|file| softfloat_source.join(Path::new(file))),
)
.files(
specialize_sources
.iter()
.map(|file| specialized_source_path.join(Path::new(file))),
);
} else {
unimplemented!("build rules are not implemented for the current target_arch and target_os");
}
if env::var("OPT_LEVEL").unwrap() == "0" {
builder.opt_level(1); }
builder
.include(softfloat_source.join(Path::new("include")))
.file(Path::new("helper.c"))
.warnings(false)
.compile("softfloat-sys");
}