1179 lines
37 KiB
Zig
1179 lines
37 KiB
Zig
const std = @import("std.zig");
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const mem = std.mem;
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const builtin = std.builtin;
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/// TODO Nearly all the functions in this namespace would be
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/// better off if https://github.com/ziglang/zig/issues/425
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/// was solved.
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pub const Target = union(enum) {
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Native: void,
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Cross: Cross,
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pub const Os = enum {
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freestanding,
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ananas,
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cloudabi,
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dragonfly,
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freebsd,
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fuchsia,
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ios,
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kfreebsd,
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linux,
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lv2,
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macosx,
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netbsd,
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openbsd,
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solaris,
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windows,
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haiku,
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minix,
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rtems,
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nacl,
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cnk,
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aix,
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cuda,
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nvcl,
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amdhsa,
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ps4,
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elfiamcu,
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tvos,
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watchos,
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mesa3d,
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contiki,
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amdpal,
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hermit,
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hurd,
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wasi,
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emscripten,
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uefi,
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other,
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};
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pub const aarch64 = @import("target/aarch64.zig");
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pub const amdgpu = @import("target/amdgpu.zig");
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pub const arm = @import("target/arm.zig");
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pub const avr = @import("target/avr.zig");
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pub const bpf = @import("target/bpf.zig");
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pub const hexagon = @import("target/hexagon.zig");
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pub const mips = @import("target/mips.zig");
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pub const msp430 = @import("target/msp430.zig");
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pub const nvptx = @import("target/nvptx.zig");
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pub const powerpc = @import("target/powerpc.zig");
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pub const riscv = @import("target/riscv.zig");
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pub const sparc = @import("target/sparc.zig");
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pub const systemz = @import("target/systemz.zig");
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pub const wasm = @import("target/wasm.zig");
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pub const x86 = @import("target/x86.zig");
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pub const Arch = union(enum) {
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arm: Arm32,
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armeb: Arm32,
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aarch64: Arm64,
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aarch64_be: Arm64,
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aarch64_32: Arm64,
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arc,
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avr,
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bpfel,
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bpfeb,
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hexagon,
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mips,
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mipsel,
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mips64,
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mips64el,
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msp430,
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powerpc,
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powerpc64,
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powerpc64le,
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r600,
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amdgcn,
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riscv32,
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riscv64,
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sparc,
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sparcv9,
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sparcel,
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s390x,
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tce,
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tcele,
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thumb: Arm32,
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thumbeb: Arm32,
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i386,
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x86_64,
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xcore,
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nvptx,
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nvptx64,
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le32,
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le64,
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amdil,
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amdil64,
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hsail,
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hsail64,
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spir,
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spir64,
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kalimba: Kalimba,
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shave,
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lanai,
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wasm32,
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wasm64,
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renderscript32,
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renderscript64,
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pub const Arm32 = enum {
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v8_5a,
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v8_4a,
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v8_3a,
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v8_2a,
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v8_1a,
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v8a,
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v8r,
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v8m_baseline,
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v8m_mainline,
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v8_1m_mainline,
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v7a,
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v7em,
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v7m,
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v7s,
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v7k,
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v7ve,
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v6,
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v6m,
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v6k,
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v6t2,
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v5,
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v5te,
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v4t,
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pub fn version(version: Arm32) comptime_int {
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return switch (version) {
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.v8_5a, .v8_4a, .v8_3a, .v8_2a, .v8_1a, .v8a, .v8r, .v8m_baseline, .v8m_mainline, .v8_1m_mainline => 8,
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.v7a, .v7em, .v7m, .v7s, .v7k, .v7ve => 7,
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.v6, .v6m, .v6k, .v6t2 => 6,
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.v5, .v5te => 5,
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.v4t => 4,
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};
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}
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};
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pub const Arm64 = enum {
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v8_5a,
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v8_4a,
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v8_3a,
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v8_2a,
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v8_1a,
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v8a,
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};
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pub const Kalimba = enum {
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v5,
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v4,
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v3,
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};
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pub const Mips = enum {
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r6,
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};
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pub fn subArchName(arch: Arch) ?[]const u8 {
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return switch (arch) {
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.arm, .armeb, .thumb, .thumbeb => |arm32| @tagName(arm32),
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.aarch64, .aarch64_be, .aarch64_32 => |arm64| @tagName(arm64),
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.kalimba => |kalimba| @tagName(kalimba),
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else => return null,
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};
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}
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pub fn subArchFeature(arch: Arch) ?Cpu.Feature.Set.Index {
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return switch (arch) {
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.arm, .armeb, .thumb, .thumbeb => |arm32| switch (arm32) {
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.v8_5a => @enumToInt(arm.Feature.armv8_5_a),
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.v8_4a => @enumToInt(arm.Feature.armv8_4_a),
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.v8_3a => @enumToInt(arm.Feature.armv8_3_a),
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.v8_2a => @enumToInt(arm.Feature.armv8_2_a),
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.v8_1a => @enumToInt(arm.Feature.armv8_1_a),
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.v8a => @enumToInt(arm.Feature.armv8_a),
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.v8r => @enumToInt(arm.Feature.armv8_r),
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.v8m_baseline => @enumToInt(arm.Feature.armv8_m_base),
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.v8m_mainline => @enumToInt(arm.Feature.armv8_m_main),
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.v8_1m_mainline => @enumToInt(arm.Feature.armv8_1_m_main),
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.v7a => @enumToInt(arm.Feature.armv7_a),
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.v7em => @enumToInt(arm.Feature.armv7e_m),
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.v7m => @enumToInt(arm.Feature.armv7_m),
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.v7s => @enumToInt(arm.Feature.armv7s),
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.v7k => @enumToInt(arm.Feature.armv7k),
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.v7ve => @enumToInt(arm.Feature.armv7ve),
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.v6 => @enumToInt(arm.Feature.armv6),
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.v6m => @enumToInt(arm.Feature.armv6_m),
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.v6k => @enumToInt(arm.Feature.armv6k),
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.v6t2 => @enumToInt(arm.Feature.armv6t2),
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.v5 => @enumToInt(arm.Feature.armv5t),
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.v5te => @enumToInt(arm.Feature.armv5te),
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.v4t => @enumToInt(arm.Feature.armv4t),
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},
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.aarch64, .aarch64_be, .aarch64_32 => |arm64| switch (arm64) {
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.v8_5a => @enumToInt(aarch64.Feature.v8_5a),
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.v8_4a => @enumToInt(aarch64.Feature.v8_4a),
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.v8_3a => @enumToInt(aarch64.Feature.v8_3a),
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.v8_2a => @enumToInt(aarch64.Feature.v8_2a),
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.v8_1a => @enumToInt(aarch64.Feature.v8_1a),
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.v8a => @enumToInt(aarch64.Feature.v8a),
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},
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else => return null,
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};
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}
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pub fn isARM(arch: Arch) bool {
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return switch (arch) {
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.arm, .armeb => true,
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else => false,
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};
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}
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pub fn isThumb(arch: Arch) bool {
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return switch (arch) {
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.thumb, .thumbeb => true,
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else => false,
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};
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}
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pub fn isWasm(arch: Arch) bool {
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return switch (arch) {
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.wasm32, .wasm64 => true,
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else => false,
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};
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}
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pub fn isMIPS(arch: Arch) bool {
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return switch (arch) {
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.mips, .mipsel, .mips64, .mips64el => true,
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else => false,
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};
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}
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pub fn parseCpu(arch: Arch, cpu_name: []const u8) !*const Cpu {
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for (arch.allCpus()) |cpu| {
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if (mem.eql(u8, cpu_name, cpu.name)) {
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return cpu;
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}
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}
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return error.UnknownCpu;
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}
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/// Comma-separated list of features, with + or - in front of each feature. This
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/// form represents a deviation from baseline CPU, which is provided as a parameter.
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/// Extra commas are ignored.
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pub fn parseCpuFeatureSet(arch: Arch, cpu: *const Cpu, features_text: []const u8) !Cpu.Feature.Set {
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const all_features = arch.allFeaturesList();
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var set = cpu.features;
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var it = mem.tokenize(features_text, ",");
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while (it.next()) |item_text| {
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var feature_name: []const u8 = undefined;
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var op: enum {
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add,
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sub,
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} = undefined;
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if (mem.startsWith(u8, item_text, "+")) {
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op = .add;
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feature_name = item_text[1..];
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} else if (mem.startsWith(u8, item_text, "-")) {
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op = .sub;
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feature_name = item_text[1..];
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} else {
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return error.InvalidCpuFeatures;
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}
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for (all_features) |feature, index_usize| {
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const index = @intCast(Cpu.Feature.Set.Index, index_usize);
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if (mem.eql(u8, feature_name, feature.name)) {
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switch (op) {
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.add => set.addFeature(index),
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.sub => set.removeFeature(index),
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}
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break;
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}
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} else {
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return error.UnknownCpuFeature;
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}
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}
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return set;
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}
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pub fn toElfMachine(arch: Arch) std.elf.EM {
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return switch (arch) {
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.avr => ._AVR,
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.msp430 => ._MSP430,
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.arc => ._ARC,
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.arm => ._ARM,
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.armeb => ._ARM,
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.hexagon => ._HEXAGON,
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.le32 => ._NONE,
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.mips => ._MIPS,
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.mipsel => ._MIPS_RS3_LE,
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.powerpc => ._PPC,
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.r600 => ._NONE,
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.riscv32 => ._RISCV,
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.sparc => ._SPARC,
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.sparcel => ._SPARC,
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.tce => ._NONE,
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.tcele => ._NONE,
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.thumb => ._ARM,
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.thumbeb => ._ARM,
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.i386 => ._386,
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.xcore => ._XCORE,
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.nvptx => ._NONE,
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.amdil => ._NONE,
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.hsail => ._NONE,
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.spir => ._NONE,
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.kalimba => ._CSR_KALIMBA,
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.shave => ._NONE,
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.lanai => ._LANAI,
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.wasm32 => ._NONE,
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.renderscript32 => ._NONE,
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.aarch64_32 => ._AARCH64,
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.aarch64 => ._AARCH64,
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.aarch64_be => ._AARCH64,
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.mips64 => ._MIPS,
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.mips64el => ._MIPS_RS3_LE,
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.powerpc64 => ._PPC64,
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.powerpc64le => ._PPC64,
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.riscv64 => ._RISCV,
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.x86_64 => ._X86_64,
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.nvptx64 => ._NONE,
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.le64 => ._NONE,
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.amdil64 => ._NONE,
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.hsail64 => ._NONE,
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.spir64 => ._NONE,
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.wasm64 => ._NONE,
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.renderscript64 => ._NONE,
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.amdgcn => ._NONE,
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.bpfel => ._BPF,
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.bpfeb => ._BPF,
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.sparcv9 => ._SPARCV9,
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.s390x => ._S390,
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};
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}
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pub fn endian(arch: Arch) builtin.Endian {
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return switch (arch) {
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.avr,
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.arm,
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.aarch64_32,
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.aarch64,
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.amdgcn,
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.amdil,
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.amdil64,
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.bpfel,
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.hexagon,
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.hsail,
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.hsail64,
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.kalimba,
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.le32,
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.le64,
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.mipsel,
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.mips64el,
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.msp430,
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.nvptx,
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.nvptx64,
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.sparcel,
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.tcele,
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.powerpc64le,
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.r600,
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.riscv32,
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.riscv64,
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.i386,
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.x86_64,
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.wasm32,
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.wasm64,
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.xcore,
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.thumb,
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.spir,
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.spir64,
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.renderscript32,
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.renderscript64,
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.shave,
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=> .Little,
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.arc,
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.armeb,
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.aarch64_be,
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.bpfeb,
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.mips,
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.mips64,
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.powerpc,
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.powerpc64,
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.thumbeb,
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.sparc,
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.sparcv9,
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.tce,
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.lanai,
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.s390x,
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=> .Big,
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};
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}
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/// Returns a name that matches the lib/std/target/* directory name.
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pub fn genericName(arch: Arch) []const u8 {
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return switch (arch) {
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.arm, .armeb, .thumb, .thumbeb => "arm",
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.aarch64, .aarch64_be, .aarch64_32 => "aarch64",
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.avr => "avr",
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.bpfel, .bpfeb => "bpf",
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.hexagon => "hexagon",
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.mips, .mipsel, .mips64, .mips64el => "mips",
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.msp430 => "msp430",
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.powerpc, .powerpc64, .powerpc64le => "powerpc",
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.amdgcn => "amdgpu",
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.riscv32, .riscv64 => "riscv",
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.sparc, .sparcv9, .sparcel => "sparc",
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.s390x => "systemz",
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.i386, .x86_64 => "x86",
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.nvptx, .nvptx64 => "nvptx",
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.wasm32, .wasm64 => "wasm",
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else => @tagName(arch),
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};
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}
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/// All CPU features Zig is aware of, sorted lexicographically by name.
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pub fn allFeaturesList(arch: Arch) []const Cpu.Feature {
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return switch (arch) {
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.arm, .armeb, .thumb, .thumbeb => &arm.all_features,
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.aarch64, .aarch64_be, .aarch64_32 => &aarch64.all_features,
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.avr => &avr.all_features,
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.bpfel, .bpfeb => &bpf.all_features,
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.hexagon => &hexagon.all_features,
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.mips, .mipsel, .mips64, .mips64el => &mips.all_features,
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.msp430 => &msp430.all_features,
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.powerpc, .powerpc64, .powerpc64le => &powerpc.all_features,
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.amdgcn => &amdgpu.all_features,
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.riscv32, .riscv64 => &riscv.all_features,
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.sparc, .sparcv9, .sparcel => &sparc.all_features,
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|
.s390x => &systemz.all_features,
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.i386, .x86_64 => &x86.all_features,
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|
.nvptx, .nvptx64 => &nvptx.all_features,
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.wasm32, .wasm64 => &wasm.all_features,
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|
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else => &[0]Cpu.Feature{},
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};
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}
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|
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/// The "default" set of CPU features for cross-compiling. A conservative set
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/// of features that is expected to be supported on most available hardware.
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pub fn getBaselineCpuFeatures(arch: Arch) CpuFeatures {
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const S = struct {
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const generic_cpu = Cpu{
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.name = "generic",
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.llvm_name = null,
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.features = Cpu.Feature.Set.empty,
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};
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};
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const cpu = switch (arch) {
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.arm, .armeb, .thumb, .thumbeb => &arm.cpu.generic,
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.aarch64, .aarch64_be, .aarch64_32 => &aarch64.cpu.generic,
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.avr => &avr.cpu.avr1,
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.bpfel, .bpfeb => &bpf.cpu.generic,
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.hexagon => &hexagon.cpu.generic,
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.mips, .mipsel => &mips.cpu.mips32,
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.mips64, .mips64el => &mips.cpu.mips64,
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.msp430 => &msp430.cpu.generic,
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.powerpc, .powerpc64, .powerpc64le => &powerpc.cpu.generic,
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.amdgcn => &amdgpu.cpu.generic,
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.riscv32 => &riscv.cpu.baseline_rv32,
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|
.riscv64 => &riscv.cpu.baseline_rv64,
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.sparc, .sparcv9, .sparcel => &sparc.cpu.generic,
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.s390x => &systemz.cpu.generic,
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.i386 => &x86.cpu.pentium4,
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|
.x86_64 => &x86.cpu.x86_64,
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|
.nvptx, .nvptx64 => &nvptx.cpu.sm_20,
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.wasm32, .wasm64 => &wasm.cpu.generic,
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else => &S.generic_cpu,
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};
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return CpuFeatures.initFromCpu(arch, cpu);
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}
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|
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/// All CPUs Zig is aware of, sorted lexicographically by name.
|
|
pub fn allCpus(arch: Arch) []const *const Cpu {
|
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return switch (arch) {
|
|
.arm, .armeb, .thumb, .thumbeb => arm.all_cpus,
|
|
.aarch64, .aarch64_be, .aarch64_32 => aarch64.all_cpus,
|
|
.avr => avr.all_cpus,
|
|
.bpfel, .bpfeb => bpf.all_cpus,
|
|
.hexagon => hexagon.all_cpus,
|
|
.mips, .mipsel, .mips64, .mips64el => mips.all_cpus,
|
|
.msp430 => msp430.all_cpus,
|
|
.powerpc, .powerpc64, .powerpc64le => powerpc.all_cpus,
|
|
.amdgcn => amdgpu.all_cpus,
|
|
.riscv32, .riscv64 => riscv.all_cpus,
|
|
.sparc, .sparcv9, .sparcel => sparc.all_cpus,
|
|
.s390x => systemz.all_cpus,
|
|
.i386, .x86_64 => x86.all_cpus,
|
|
.nvptx, .nvptx64 => nvptx.all_cpus,
|
|
.wasm32, .wasm64 => wasm.all_cpus,
|
|
|
|
else => &[0]*const Cpu{},
|
|
};
|
|
}
|
|
};
|
|
|
|
pub const Abi = enum {
|
|
none,
|
|
gnu,
|
|
gnuabin32,
|
|
gnuabi64,
|
|
gnueabi,
|
|
gnueabihf,
|
|
gnux32,
|
|
code16,
|
|
eabi,
|
|
eabihf,
|
|
elfv1,
|
|
elfv2,
|
|
android,
|
|
musl,
|
|
musleabi,
|
|
musleabihf,
|
|
msvc,
|
|
itanium,
|
|
cygnus,
|
|
coreclr,
|
|
simulator,
|
|
macabi,
|
|
};
|
|
|
|
pub const Cpu = struct {
|
|
name: []const u8,
|
|
llvm_name: ?[:0]const u8,
|
|
features: Feature.Set,
|
|
|
|
pub const Feature = struct {
|
|
/// The bit index into `Set`. Has a default value of `undefined` because the canonical
|
|
/// structures are populated via comptime logic.
|
|
index: Set.Index = undefined,
|
|
|
|
/// Has a default value of `undefined` because the canonical
|
|
/// structures are populated via comptime logic.
|
|
name: []const u8 = undefined,
|
|
|
|
/// If this corresponds to an LLVM-recognized feature, this will be populated;
|
|
/// otherwise null.
|
|
llvm_name: ?[:0]const u8,
|
|
|
|
/// Human-friendly UTF-8 text.
|
|
description: []const u8,
|
|
|
|
/// Sparse `Set` of features this depends on.
|
|
dependencies: Set,
|
|
|
|
/// A bit set of all the features.
|
|
pub const Set = struct {
|
|
ints: [usize_count]usize,
|
|
|
|
pub const needed_bit_count = 174;
|
|
pub const byte_count = (needed_bit_count + 7) / 8;
|
|
pub const usize_count = (byte_count + (@sizeOf(usize) - 1)) / @sizeOf(usize);
|
|
pub const Index = std.math.Log2Int(@IntType(false, usize_count * @bitSizeOf(usize)));
|
|
pub const ShiftInt = std.math.Log2Int(usize);
|
|
|
|
pub const empty = Set{ .ints = [1]usize{0} ** usize_count };
|
|
pub fn empty_workaround() Set {
|
|
return Set{ .ints = [1]usize{0} ** usize_count };
|
|
}
|
|
|
|
pub fn isEnabled(set: Set, arch_feature_index: Index) bool {
|
|
const usize_index = arch_feature_index / @bitSizeOf(usize);
|
|
const bit_index = @intCast(ShiftInt, arch_feature_index % @bitSizeOf(usize));
|
|
return (set.ints[usize_index] & (@as(usize, 1) << bit_index)) != 0;
|
|
}
|
|
|
|
/// Adds the specified feature but not its dependencies.
|
|
pub fn addFeature(set: *Set, arch_feature_index: Index) void {
|
|
const usize_index = arch_feature_index / @bitSizeOf(usize);
|
|
const bit_index = @intCast(ShiftInt, arch_feature_index % @bitSizeOf(usize));
|
|
set.ints[usize_index] |= @as(usize, 1) << bit_index;
|
|
}
|
|
|
|
/// Removes the specified feature but not its dependents.
|
|
pub fn removeFeature(set: *Set, arch_feature_index: Index) void {
|
|
const usize_index = arch_feature_index / @bitSizeOf(usize);
|
|
const bit_index = @intCast(ShiftInt, arch_feature_index % @bitSizeOf(usize));
|
|
set.ints[usize_index] &= ~(@as(usize, 1) << bit_index);
|
|
}
|
|
|
|
pub fn populateDependencies(set: *Set, all_features_list: []const Cpu.Feature) void {
|
|
var old = set.ints;
|
|
while (true) {
|
|
for (all_features_list) |feature, index_usize| {
|
|
const index = @intCast(Index, index_usize);
|
|
if (set.isEnabled(index)) {
|
|
set.ints = @as(@Vector(usize_count, usize), set.ints) |
|
|
@as(@Vector(usize_count, usize), feature.dependencies.ints);
|
|
}
|
|
}
|
|
const nothing_changed = mem.eql(usize, &old, &set.ints);
|
|
if (nothing_changed) return;
|
|
old = set.ints;
|
|
}
|
|
}
|
|
|
|
pub fn asBytes(set: *const Set) *const [byte_count]u8 {
|
|
return @ptrCast(*const [byte_count]u8, &set.ints);
|
|
}
|
|
|
|
pub fn eql(set: Set, other: Set) bool {
|
|
return mem.eql(usize, &set.ints, &other.ints);
|
|
}
|
|
};
|
|
|
|
pub fn feature_set_fns(comptime F: type) type {
|
|
return struct {
|
|
/// Populates only the feature bits specified.
|
|
pub fn featureSet(features: []const F) Set {
|
|
var x = Set.empty_workaround(); // TODO remove empty_workaround
|
|
for (features) |feature| {
|
|
x.addFeature(@enumToInt(feature));
|
|
}
|
|
return x;
|
|
}
|
|
|
|
pub fn featureSetHas(set: Set, feature: F) bool {
|
|
return set.isEnabled(@enumToInt(feature));
|
|
}
|
|
};
|
|
}
|
|
};
|
|
};
|
|
|
|
pub const ObjectFormat = enum {
|
|
unknown,
|
|
coff,
|
|
elf,
|
|
macho,
|
|
wasm,
|
|
};
|
|
|
|
pub const SubSystem = enum {
|
|
Console,
|
|
Windows,
|
|
Posix,
|
|
Native,
|
|
EfiApplication,
|
|
EfiBootServiceDriver,
|
|
EfiRom,
|
|
EfiRuntimeDriver,
|
|
};
|
|
|
|
pub const Cross = struct {
|
|
arch: Arch,
|
|
os: Os,
|
|
abi: Abi,
|
|
cpu_features: CpuFeatures,
|
|
};
|
|
|
|
pub const CpuFeatures = struct {
|
|
/// The CPU to target. It has a set of features
|
|
/// which are overridden with the `features` field.
|
|
cpu: *const Cpu,
|
|
|
|
/// Explicitly provide the entire CPU feature set.
|
|
features: Cpu.Feature.Set,
|
|
|
|
pub fn initFromCpu(arch: Arch, cpu: *const Cpu) CpuFeatures {
|
|
var features = cpu.features;
|
|
if (arch.subArchFeature()) |sub_arch_index| {
|
|
features.addFeature(sub_arch_index);
|
|
}
|
|
features.populateDependencies(arch.allFeaturesList());
|
|
return CpuFeatures{
|
|
.cpu = cpu,
|
|
.features = features,
|
|
};
|
|
}
|
|
};
|
|
|
|
pub const current = Target{
|
|
.Cross = Cross{
|
|
.arch = builtin.arch,
|
|
.os = builtin.os,
|
|
.abi = builtin.abi,
|
|
.cpu_features = builtin.cpu_features,
|
|
},
|
|
};
|
|
|
|
pub const stack_align = 16;
|
|
|
|
pub fn getCpuFeatures(self: Target) CpuFeatures {
|
|
return switch (self) {
|
|
.Native => builtin.cpu_features,
|
|
.Cross => |cross| cross.cpu_features,
|
|
};
|
|
}
|
|
|
|
pub fn zigTriple(self: Target, allocator: *mem.Allocator) ![]u8 {
|
|
return std.fmt.allocPrint(allocator, "{}{}-{}-{}", .{
|
|
@tagName(self.getArch()),
|
|
Target.archSubArchName(self.getArch()),
|
|
@tagName(self.getOs()),
|
|
@tagName(self.getAbi()),
|
|
});
|
|
}
|
|
|
|
/// Returned slice must be freed by the caller.
|
|
pub fn vcpkgTriplet(allocator: *mem.Allocator, target: Target, linkage: std.build.VcpkgLinkage) ![]const u8 {
|
|
const arch = switch (target.getArch()) {
|
|
.i386 => "x86",
|
|
.x86_64 => "x64",
|
|
|
|
.arm,
|
|
.armeb,
|
|
.thumb,
|
|
.thumbeb,
|
|
.aarch64_32,
|
|
=> "arm",
|
|
|
|
.aarch64,
|
|
.aarch64_be,
|
|
=> "arm64",
|
|
|
|
else => return error.VcpkgNoSuchArchitecture,
|
|
};
|
|
|
|
const os = switch (target.getOs()) {
|
|
.windows => "windows",
|
|
.linux => "linux",
|
|
.macosx => "macos",
|
|
else => return error.VcpkgNoSuchOs,
|
|
};
|
|
|
|
if (linkage == .Static) {
|
|
return try mem.join(allocator, "-", &[_][]const u8{ arch, os, "static" });
|
|
} else {
|
|
return try mem.join(allocator, "-", &[_][]const u8{ arch, os });
|
|
}
|
|
}
|
|
|
|
pub fn allocDescription(self: Target, allocator: *mem.Allocator) ![]u8 {
|
|
// TODO is there anything else worthy of the description that is not
|
|
// already captured in the triple?
|
|
return self.zigTriple(allocator);
|
|
}
|
|
|
|
pub fn zigTripleNoSubArch(self: Target, allocator: *mem.Allocator) ![]u8 {
|
|
return std.fmt.allocPrint(allocator, "{}-{}-{}", .{
|
|
@tagName(self.getArch()),
|
|
@tagName(self.getOs()),
|
|
@tagName(self.getAbi()),
|
|
});
|
|
}
|
|
|
|
pub fn linuxTriple(self: Target, allocator: *mem.Allocator) ![]u8 {
|
|
return std.fmt.allocPrint(allocator, "{}-{}-{}", .{
|
|
@tagName(self.getArch()),
|
|
@tagName(self.getOs()),
|
|
@tagName(self.getAbi()),
|
|
});
|
|
}
|
|
|
|
/// TODO: Support CPU features here?
|
|
/// https://github.com/ziglang/zig/issues/4261
|
|
pub fn parse(text: []const u8) !Target {
|
|
var it = mem.separate(text, "-");
|
|
const arch_name = it.next() orelse return error.MissingArchitecture;
|
|
const os_name = it.next() orelse return error.MissingOperatingSystem;
|
|
const abi_name = it.next();
|
|
const arch = try parseArchSub(arch_name);
|
|
|
|
var cross = Cross{
|
|
.arch = arch,
|
|
.cpu_features = arch.getBaselineCpuFeatures(),
|
|
.os = try parseOs(os_name),
|
|
.abi = undefined,
|
|
};
|
|
cross.abi = if (abi_name) |n| try parseAbi(n) else defaultAbi(cross.arch, cross.os);
|
|
return Target{ .Cross = cross };
|
|
}
|
|
|
|
pub fn defaultAbi(arch: Arch, target_os: Os) Abi {
|
|
switch (arch) {
|
|
.wasm32, .wasm64 => return .musl,
|
|
else => {},
|
|
}
|
|
switch (target_os) {
|
|
.freestanding,
|
|
.ananas,
|
|
.cloudabi,
|
|
.dragonfly,
|
|
.lv2,
|
|
.solaris,
|
|
.haiku,
|
|
.minix,
|
|
.rtems,
|
|
.nacl,
|
|
.cnk,
|
|
.aix,
|
|
.cuda,
|
|
.nvcl,
|
|
.amdhsa,
|
|
.ps4,
|
|
.elfiamcu,
|
|
.mesa3d,
|
|
.contiki,
|
|
.amdpal,
|
|
.hermit,
|
|
.other,
|
|
=> return .eabi,
|
|
.openbsd,
|
|
.macosx,
|
|
.freebsd,
|
|
.ios,
|
|
.tvos,
|
|
.watchos,
|
|
.fuchsia,
|
|
.kfreebsd,
|
|
.netbsd,
|
|
.hurd,
|
|
=> return .gnu,
|
|
.windows,
|
|
.uefi,
|
|
=> return .msvc,
|
|
.linux,
|
|
.wasi,
|
|
.emscripten,
|
|
=> return .musl,
|
|
}
|
|
}
|
|
|
|
pub const ParseArchSubError = error{
|
|
UnknownArchitecture,
|
|
UnknownSubArchitecture,
|
|
};
|
|
|
|
pub fn parseArchSub(text: []const u8) ParseArchSubError!Arch {
|
|
const info = @typeInfo(Arch);
|
|
inline for (info.Union.fields) |field| {
|
|
if (mem.startsWith(u8, text, field.name)) {
|
|
if (field.field_type == void) {
|
|
return @as(Arch, @field(Arch, field.name));
|
|
} else {
|
|
const sub_info = @typeInfo(field.field_type);
|
|
inline for (sub_info.Enum.fields) |sub_field| {
|
|
const combined = field.name ++ sub_field.name;
|
|
if (mem.eql(u8, text, combined)) {
|
|
return @unionInit(Arch, field.name, @field(field.field_type, sub_field.name));
|
|
}
|
|
}
|
|
return error.UnknownSubArchitecture;
|
|
}
|
|
}
|
|
}
|
|
return error.UnknownArchitecture;
|
|
}
|
|
|
|
pub fn parseOs(text: []const u8) !Os {
|
|
const info = @typeInfo(Os);
|
|
inline for (info.Enum.fields) |field| {
|
|
if (mem.eql(u8, text, field.name)) {
|
|
return @field(Os, field.name);
|
|
}
|
|
}
|
|
return error.UnknownOperatingSystem;
|
|
}
|
|
|
|
pub fn parseAbi(text: []const u8) !Abi {
|
|
const info = @typeInfo(Abi);
|
|
inline for (info.Enum.fields) |field| {
|
|
if (mem.eql(u8, text, field.name)) {
|
|
return @field(Abi, field.name);
|
|
}
|
|
}
|
|
return error.UnknownApplicationBinaryInterface;
|
|
}
|
|
|
|
fn archSubArchName(arch: Arch) []const u8 {
|
|
return switch (arch) {
|
|
.arm => |sub| @tagName(sub),
|
|
.armeb => |sub| @tagName(sub),
|
|
.thumb => |sub| @tagName(sub),
|
|
.thumbeb => |sub| @tagName(sub),
|
|
.aarch64 => |sub| @tagName(sub),
|
|
.aarch64_be => |sub| @tagName(sub),
|
|
.kalimba => |sub| @tagName(sub),
|
|
else => "",
|
|
};
|
|
}
|
|
|
|
pub fn subArchName(self: Target) []const u8 {
|
|
switch (self) {
|
|
.Native => return archSubArchName(builtin.arch),
|
|
.Cross => |cross| return archSubArchName(cross.arch),
|
|
}
|
|
}
|
|
|
|
pub fn oFileExt(self: Target) []const u8 {
|
|
return switch (self.getAbi()) {
|
|
.msvc => ".obj",
|
|
else => ".o",
|
|
};
|
|
}
|
|
|
|
pub fn exeFileExt(self: Target) []const u8 {
|
|
if (self.isWindows()) {
|
|
return ".exe";
|
|
} else if (self.isUefi()) {
|
|
return ".efi";
|
|
} else if (self.isWasm()) {
|
|
return ".wasm";
|
|
} else {
|
|
return "";
|
|
}
|
|
}
|
|
|
|
pub fn staticLibSuffix(self: Target) []const u8 {
|
|
if (self.isWasm()) {
|
|
return ".wasm";
|
|
}
|
|
switch (self.getAbi()) {
|
|
.msvc => return ".lib",
|
|
else => return ".a",
|
|
}
|
|
}
|
|
|
|
pub fn dynamicLibSuffix(self: Target) []const u8 {
|
|
if (self.isDarwin()) {
|
|
return ".dylib";
|
|
}
|
|
switch (self.getOs()) {
|
|
.windows => return ".dll",
|
|
else => return ".so",
|
|
}
|
|
}
|
|
|
|
pub fn libPrefix(self: Target) []const u8 {
|
|
if (self.isWasm()) {
|
|
return "";
|
|
}
|
|
switch (self.getAbi()) {
|
|
.msvc => return "",
|
|
else => return "lib",
|
|
}
|
|
}
|
|
|
|
pub fn getOs(self: Target) Os {
|
|
return switch (self) {
|
|
.Native => builtin.os,
|
|
.Cross => |t| t.os,
|
|
};
|
|
}
|
|
|
|
pub fn getArch(self: Target) Arch {
|
|
switch (self) {
|
|
.Native => return builtin.arch,
|
|
.Cross => |t| return t.arch,
|
|
}
|
|
}
|
|
|
|
pub fn getAbi(self: Target) Abi {
|
|
switch (self) {
|
|
.Native => return builtin.abi,
|
|
.Cross => |t| return t.abi,
|
|
}
|
|
}
|
|
|
|
pub fn isMinGW(self: Target) bool {
|
|
return self.isWindows() and self.isGnu();
|
|
}
|
|
|
|
pub fn isGnu(self: Target) bool {
|
|
return switch (self.getAbi()) {
|
|
.gnu, .gnuabin32, .gnuabi64, .gnueabi, .gnueabihf, .gnux32 => true,
|
|
else => false,
|
|
};
|
|
}
|
|
|
|
pub fn isMusl(self: Target) bool {
|
|
return switch (self.getAbi()) {
|
|
.musl, .musleabi, .musleabihf => true,
|
|
else => false,
|
|
};
|
|
}
|
|
|
|
pub fn isDarwin(self: Target) bool {
|
|
return switch (self.getOs()) {
|
|
.ios, .macosx, .watchos, .tvos => true,
|
|
else => false,
|
|
};
|
|
}
|
|
|
|
pub fn isWindows(self: Target) bool {
|
|
return switch (self.getOs()) {
|
|
.windows => true,
|
|
else => false,
|
|
};
|
|
}
|
|
|
|
pub fn isLinux(self: Target) bool {
|
|
return switch (self.getOs()) {
|
|
.linux => true,
|
|
else => false,
|
|
};
|
|
}
|
|
|
|
pub fn isUefi(self: Target) bool {
|
|
return switch (self.getOs()) {
|
|
.uefi => true,
|
|
else => false,
|
|
};
|
|
}
|
|
|
|
pub fn isWasm(self: Target) bool {
|
|
return switch (self.getArch()) {
|
|
.wasm32, .wasm64 => true,
|
|
else => false,
|
|
};
|
|
}
|
|
|
|
pub fn isFreeBSD(self: Target) bool {
|
|
return switch (self.getOs()) {
|
|
.freebsd => true,
|
|
else => false,
|
|
};
|
|
}
|
|
|
|
pub fn isNetBSD(self: Target) bool {
|
|
return switch (self.getOs()) {
|
|
.netbsd => true,
|
|
else => false,
|
|
};
|
|
}
|
|
|
|
pub fn wantSharedLibSymLinks(self: Target) bool {
|
|
return !self.isWindows();
|
|
}
|
|
|
|
pub fn osRequiresLibC(self: Target) bool {
|
|
return self.isDarwin() or self.isFreeBSD() or self.isNetBSD();
|
|
}
|
|
|
|
pub fn getArchPtrBitWidth(self: Target) u32 {
|
|
switch (self.getArch()) {
|
|
.avr,
|
|
.msp430,
|
|
=> return 16,
|
|
|
|
.arc,
|
|
.arm,
|
|
.armeb,
|
|
.hexagon,
|
|
.le32,
|
|
.mips,
|
|
.mipsel,
|
|
.powerpc,
|
|
.r600,
|
|
.riscv32,
|
|
.sparc,
|
|
.sparcel,
|
|
.tce,
|
|
.tcele,
|
|
.thumb,
|
|
.thumbeb,
|
|
.i386,
|
|
.xcore,
|
|
.nvptx,
|
|
.amdil,
|
|
.hsail,
|
|
.spir,
|
|
.kalimba,
|
|
.shave,
|
|
.lanai,
|
|
.wasm32,
|
|
.renderscript32,
|
|
.aarch64_32,
|
|
=> return 32,
|
|
|
|
.aarch64,
|
|
.aarch64_be,
|
|
.mips64,
|
|
.mips64el,
|
|
.powerpc64,
|
|
.powerpc64le,
|
|
.riscv64,
|
|
.x86_64,
|
|
.nvptx64,
|
|
.le64,
|
|
.amdil64,
|
|
.hsail64,
|
|
.spir64,
|
|
.wasm64,
|
|
.renderscript64,
|
|
.amdgcn,
|
|
.bpfel,
|
|
.bpfeb,
|
|
.sparcv9,
|
|
.s390x,
|
|
=> return 64,
|
|
}
|
|
}
|
|
|
|
pub fn supportsNewStackCall(self: Target) bool {
|
|
return !self.isWasm();
|
|
}
|
|
|
|
pub const Executor = union(enum) {
|
|
native,
|
|
qemu: []const u8,
|
|
wine: []const u8,
|
|
wasmtime: []const u8,
|
|
unavailable,
|
|
};
|
|
|
|
pub fn getExternalExecutor(self: Target) Executor {
|
|
if (@as(@TagType(Target), self) == .Native) return .native;
|
|
|
|
// If the target OS matches the host OS, we can use QEMU to emulate a foreign architecture.
|
|
if (self.getOs() == builtin.os) {
|
|
return switch (self.getArch()) {
|
|
.aarch64 => Executor{ .qemu = "qemu-aarch64" },
|
|
.aarch64_be => Executor{ .qemu = "qemu-aarch64_be" },
|
|
.arm => Executor{ .qemu = "qemu-arm" },
|
|
.armeb => Executor{ .qemu = "qemu-armeb" },
|
|
.i386 => Executor{ .qemu = "qemu-i386" },
|
|
.mips => Executor{ .qemu = "qemu-mips" },
|
|
.mipsel => Executor{ .qemu = "qemu-mipsel" },
|
|
.mips64 => Executor{ .qemu = "qemu-mips64" },
|
|
.mips64el => Executor{ .qemu = "qemu-mips64el" },
|
|
.powerpc => Executor{ .qemu = "qemu-ppc" },
|
|
.powerpc64 => Executor{ .qemu = "qemu-ppc64" },
|
|
.powerpc64le => Executor{ .qemu = "qemu-ppc64le" },
|
|
.riscv32 => Executor{ .qemu = "qemu-riscv32" },
|
|
.riscv64 => Executor{ .qemu = "qemu-riscv64" },
|
|
.s390x => Executor{ .qemu = "qemu-s390x" },
|
|
.sparc => Executor{ .qemu = "qemu-sparc" },
|
|
.x86_64 => Executor{ .qemu = "qemu-x86_64" },
|
|
else => return .unavailable,
|
|
};
|
|
}
|
|
|
|
if (self.isWindows()) {
|
|
switch (self.getArchPtrBitWidth()) {
|
|
32 => return Executor{ .wine = "wine" },
|
|
64 => return Executor{ .wine = "wine64" },
|
|
else => return .unavailable,
|
|
}
|
|
}
|
|
|
|
if (self.getOs() == .wasi) {
|
|
switch (self.getArchPtrBitWidth()) {
|
|
32 => return Executor{ .wasmtime = "wasmtime" },
|
|
else => return .unavailable,
|
|
}
|
|
}
|
|
|
|
return .unavailable;
|
|
}
|
|
};
|
|
|
|
test "parseCpuFeatureSet" {
|
|
const arch: Target.Arch = .x86_64;
|
|
const baseline = arch.getBaselineCpuFeatures();
|
|
const set = try arch.parseCpuFeatureSet(baseline.cpu, "-sse,-avx,-cx8");
|
|
std.testing.expect(!Target.x86.featureSetHas(set, .sse));
|
|
std.testing.expect(!Target.x86.featureSetHas(set, .avx));
|
|
std.testing.expect(!Target.x86.featureSetHas(set, .cx8));
|
|
// These are expected because they are part of the baseline
|
|
std.testing.expect(Target.x86.featureSetHas(set, .cmov));
|
|
std.testing.expect(Target.x86.featureSetHas(set, .fxsr));
|
|
}
|