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libsodium/build.zig
Frank Denis 131c6e771c defineCMacro -> root_module.addCMacro
2024-12-20 12:15:38 +01:00

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const std = @import("std");
const fmt = std.fmt;
const fs = std.fs;
const heap = std.heap;
const mem = std.mem;
const Compile = std.Build.Step.Compile;
const Target = std.Target;
fn initLibConfig(b: *std.Build, target: std.Build.ResolvedTarget, lib: *Compile) void {
lib.linkLibC();
lib.addIncludePath(b.path("src/libsodium/include/sodium"));
lib.root_module.addCMacro("_GNU_SOURCE", "1");
lib.root_module.addCMacro("CONFIGURED", "1");
lib.root_module.addCMacro("DEV_MODE", "1");
lib.root_module.addCMacro("HAVE_ATOMIC_OPS", "1");
lib.root_module.addCMacro("HAVE_C11_MEMORY_FENCES", "1");
lib.root_module.addCMacro("HAVE_CET_H", "1");
lib.root_module.addCMacro("HAVE_GCC_MEMORY_FENCES", "1");
lib.root_module.addCMacro("HAVE_INLINE_ASM", "1");
lib.root_module.addCMacro("HAVE_INTTYPES_H", "1");
lib.root_module.addCMacro("HAVE_STDINT_H", "1");
lib.root_module.addCMacro("HAVE_TI_MODE", "1");
lib.want_lto = false;
const endian = target.result.cpu.arch.endian();
switch (endian) {
.big => lib.root_module.addCMacro("NATIVE_BIG_ENDIAN", "1"),
.little => lib.root_module.addCMacro("NATIVE_LITTLE_ENDIAN", "1"),
}
switch (target.result.os.tag) {
.linux => {
lib.root_module.addCMacro("ASM_HIDE_SYMBOL", ".hidden");
lib.root_module.addCMacro("TLS", "_Thread_local");
lib.root_module.addCMacro("HAVE_CATCHABLE_ABRT", "1");
lib.root_module.addCMacro("HAVE_CATCHABLE_SEGV", "1");
lib.root_module.addCMacro("HAVE_CLOCK_GETTIME", "1");
lib.root_module.addCMacro("HAVE_GETPID", "1");
lib.root_module.addCMacro("HAVE_MADVISE", "1");
lib.root_module.addCMacro("HAVE_MLOCK", "1");
lib.root_module.addCMacro("HAVE_MMAP", "1");
lib.root_module.addCMacro("HAVE_MPROTECT", "1");
lib.root_module.addCMacro("HAVE_NANOSLEEP", "1");
lib.root_module.addCMacro("HAVE_POSIX_MEMALIGN", "1");
lib.root_module.addCMacro("HAVE_PTHREAD_PRIO_INHERIT", "1");
lib.root_module.addCMacro("HAVE_PTHREAD", "1");
lib.root_module.addCMacro("HAVE_RAISE", "1");
lib.root_module.addCMacro("HAVE_SYSCONF", "1");
lib.root_module.addCMacro("HAVE_SYS_AUXV_H", "1");
lib.root_module.addCMacro("HAVE_SYS_MMAN_H", "1");
lib.root_module.addCMacro("HAVE_SYS_PARAM_H", "1");
lib.root_module.addCMacro("HAVE_SYS_RANDOM_H", "1");
lib.root_module.addCMacro("HAVE_WEAK_SYMBOLS", "1");
},
.windows => {
lib.root_module.addCMacro("HAVE_RAISE", "1");
lib.root_module.addCMacro("HAVE_SYS_PARAM_H", "1");
if (lib.isStaticLibrary()) {
lib.root_module.addCMacro("SODIUM_STATIC", "1");
}
},
.macos => {
lib.root_module.addCMacro("ASM_HIDE_SYMBOL", ".private_extern");
lib.root_module.addCMacro("TLS", "_Thread_local");
lib.root_module.addCMacro("HAVE_ARC4RANDOM", "1");
lib.root_module.addCMacro("HAVE_ARC4RANDOM_BUF", "1");
lib.root_module.addCMacro("HAVE_CATCHABLE_ABRT", "1");
lib.root_module.addCMacro("HAVE_CATCHABLE_SEGV", "1");
lib.root_module.addCMacro("HAVE_CLOCK_GETTIME", "1");
lib.root_module.addCMacro("HAVE_GETENTROPY", "1");
lib.root_module.addCMacro("HAVE_GETPID", "1");
lib.root_module.addCMacro("HAVE_MADVISE", "1");
lib.root_module.addCMacro("HAVE_MEMSET_S", "1");
lib.root_module.addCMacro("HAVE_MLOCK", "1");
lib.root_module.addCMacro("HAVE_MMAP", "1");
lib.root_module.addCMacro("HAVE_MPROTECT", "1");
lib.root_module.addCMacro("HAVE_NANOSLEEP", "1");
lib.root_module.addCMacro("HAVE_POSIX_MEMALIGN", "1");
lib.root_module.addCMacro("HAVE_PTHREAD", "1");
lib.root_module.addCMacro("HAVE_PTHREAD_PRIO_INHERIT", "1");
lib.root_module.addCMacro("HAVE_RAISE", "1");
lib.root_module.addCMacro("HAVE_SYSCONF", "1");
lib.root_module.addCMacro("HAVE_SYS_MMAN_H", "1");
lib.root_module.addCMacro("HAVE_SYS_PARAM_H", "1");
lib.root_module.addCMacro("HAVE_SYS_RANDOM_H", "1");
lib.root_module.addCMacro("HAVE_WEAK_SYMBOLS", "1");
},
.wasi => {
lib.root_module.addCMacro("HAVE_ARC4RANDOM", "1");
lib.root_module.addCMacro("HAVE_ARC4RANDOM_BUF", "1");
lib.root_module.addCMacro("HAVE_CLOCK_GETTIME", "1");
lib.root_module.addCMacro("HAVE_GETENTROPY", "1");
lib.root_module.addCMacro("HAVE_NANOSLEEP", "1");
lib.root_module.addCMacro("HAVE_POSIX_MEMALIGN", "1");
lib.root_module.addCMacro("HAVE_SYS_AUXV_H", "1");
lib.root_module.addCMacro("HAVE_SYS_PARAM_H", "1");
lib.root_module.addCMacro("HAVE_SYS_RANDOM_H", "1");
},
else => {},
}
switch (target.result.cpu.arch) {
.x86_64 => {
switch (target.result.os.tag) {
.windows => {},
else => {
lib.root_module.addCMacro("HAVE_AMD64_ASM", "1");
lib.root_module.addCMacro("HAVE_AVX_ASM", "1");
},
}
lib.root_module.addCMacro("HAVE_CPUID", "1");
lib.root_module.addCMacro("HAVE_MMINTRIN_H", "1");
lib.root_module.addCMacro("HAVE_EMMINTRIN_H", "1");
lib.root_module.addCMacro("HAVE_PMMINTRIN_H", "1");
lib.root_module.addCMacro("HAVE_TMMINTRIN_H", "1");
lib.root_module.addCMacro("HAVE_SMMINTRIN_H", "1");
lib.root_module.addCMacro("HAVE_AVXINTRIN_H", "1");
lib.root_module.addCMacro("HAVE_AVX2INTRIN_H", "1");
lib.root_module.addCMacro("HAVE_AVX512FINTRIN_H", "1");
lib.root_module.addCMacro("HAVE_WMMINTRIN_H", "1");
lib.root_module.addCMacro("HAVE_RDRAND", "1");
},
.aarch64, .aarch64_be => {
lib.root_module.addCMacro("HAVE_ARMCRYPTO", "1");
},
.wasm32, .wasm64 => {
lib.root_module.addCMacro("__wasm__", "1");
},
else => {},
}
switch (target.result.os.tag) {
.wasi => {
lib.root_module.addCMacro("__wasi__", "1");
},
else => {},
}
}
pub fn build(b: *std.Build) !void {
const root_path = b.pathFromRoot(".");
var cwd = try fs.openDirAbsolute(root_path, .{});
defer cwd.close();
const src_path = "src/libsodium";
const src_dir = try fs.Dir.openDir(cwd, src_path, .{ .iterate = true, .no_follow = true });
var target = b.standardTargetOptions(.{});
const optimize = b.standardOptimizeOption(.{});
const enable_benchmarks = b.option(bool, "enable_benchmarks", "Whether tests should be benchmarks.") orelse false;
const benchmarks_iterations = b.option(u32, "iterations", "Number of iterations for benchmarks.") orelse 200;
var build_static = b.option(bool, "static", "Build libsodium as a static library.") orelse true;
var build_shared = b.option(bool, "shared", "Build libsodium as a shared library.") orelse true;
const build_tests = b.option(bool, "test", "Build the tests (implies -Dstatic=true)") orelse true;
if (target.result.isWasm()) {
build_shared = false;
}
if (build_tests) {
build_static = true;
}
switch (target.result.cpu.arch) {
.aarch64, .aarch64_be => {
// ARM CPUs supported by Windows are assumed to have NEON support
if (target.result.isMinGW()) {
target.query.cpu_features_add.addFeature(@intFromEnum(Target.aarch64.Feature.neon));
}
},
else => {},
}
const static_lib = b.addStaticLibrary(.{
.name = if (target.result.isMinGW()) "libsodium-static" else "sodium",
.target = target,
.optimize = optimize,
});
const shared_lib = b.addSharedLibrary(.{
.name = if (target.result.isMinGW()) "libsodium" else "sodium",
.target = target,
.optimize = optimize,
.strip = optimize != .Debug and !target.result.isMinGW(),
});
// work out which libraries we are building
var libs = std.ArrayList(*Compile).init(b.allocator);
defer libs.deinit();
if (build_static) {
try libs.append(static_lib);
}
if (build_shared) {
try libs.append(shared_lib);
}
const prebuilt_version_file_path = "builds/msvc/version.h";
const version_file_path = "include/sodium/version.h";
if (src_dir.access(version_file_path, .{ .mode = .read_only })) {} else |_| {
try cwd.copyFile(prebuilt_version_file_path, src_dir, version_file_path, .{});
}
for (libs.items) |lib| {
b.installArtifact(lib);
lib.installHeader(b.path(src_path ++ "/include/sodium.h"), "sodium.h");
lib.installHeadersDirectory(b.path(src_path ++ "/include/sodium"), "sodium", .{});
initLibConfig(b, target, lib);
const flags = &.{
"-fvisibility=hidden",
"-fno-strict-aliasing",
"-fno-strict-overflow",
"-fwrapv",
"-flax-vector-conversions",
"-Werror=vla",
};
const allocator = heap.page_allocator;
var walker = try src_dir.walk(allocator);
while (try walker.next()) |entry| {
const name = entry.basename;
if (mem.endsWith(u8, name, ".c")) {
const full_path = try fmt.allocPrint(allocator, "{s}/{s}", .{ src_path, entry.path });
lib.addCSourceFiles(.{
.files = &.{full_path},
.flags = flags,
});
} else if (mem.endsWith(u8, name, ".S")) {
const full_path = try fmt.allocPrint(allocator, "{s}/{s}", .{ src_path, entry.path });
lib.addAssemblyFile(b.path(full_path));
}
}
}
const test_path = "test/default";
const out_bin_path = "zig-out/bin";
const test_dir = try fs.Dir.openDir(cwd, test_path, .{ .iterate = true, .no_follow = true });
fs.Dir.makePath(cwd, out_bin_path) catch {};
const out_bin_dir = try fs.Dir.openDir(cwd, out_bin_path, .{});
try test_dir.copyFile("run.sh", out_bin_dir, "run.sh", .{});
const allocator = heap.page_allocator;
var walker = try test_dir.walk(allocator);
if (build_tests) {
while (try walker.next()) |entry| {
const name = entry.basename;
if (mem.endsWith(u8, name, ".exp")) {
try test_dir.copyFile(name, out_bin_dir, name, .{});
continue;
}
if (!mem.endsWith(u8, name, ".c")) {
continue;
}
const exe_name = name[0 .. name.len - 2];
var exe = b.addExecutable(.{
.name = exe_name,
.target = target,
.optimize = optimize,
.strip = true,
});
exe.linkLibC();
exe.linkLibrary(static_lib);
exe.addIncludePath(b.path("src/libsodium/include"));
exe.addIncludePath(b.path("test/quirks"));
const full_path = try fmt.allocPrint(allocator, "{s}/{s}", .{ test_path, entry.path });
exe.addCSourceFiles(.{ .files = &.{full_path} });
if (enable_benchmarks) {
exe.root_module.addCMacro("BENCHMARKS", "1");
var buf: [16]u8 = undefined;
exe.root_module.addCMacro("ITERATIONS", std.fmt.bufPrintIntToSlice(&buf, benchmarks_iterations, 10, .lower, .{}));
}
b.installArtifact(exe);
}
}
}
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