// SPDX-License-Identifier: BSD-3-Clause // See Notices.txt for copyright information extern crate cc; extern crate cc_version; use cc_version::{cc_version, Version}; use std::env; use std::path::Path; #[cfg(target_arch = "x86")] const SPECIALIZED_PATH: &str = "8086"; #[cfg(target_arch = "x86_64")] 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(target_arch = "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"); // GCC 4.9 supports _Thread_local 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")) { 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); // work around softfloat bug with no definition for inline functions } builder .include(softfloat_source.join(Path::new("include"))) .file(Path::new("helper.c")) .warnings(false) .compile("softfloat-sys"); }