99 lines
4 KiB
Zig
99 lines
4 KiB
Zig
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const std = @import("std");
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// Although this function looks imperative, note that its job is to
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// declaratively construct a build graph that will be executed by an external
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// runner.
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pub fn build(b: *std.Build) void {
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// Standard target options allows the person running `zig build` to choose
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// what target to build for. Here we do not override the defaults, which
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// means any target is allowed, and the default is native. Other options
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// for restricting supported target set are available.
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const target = b.standardTargetOptions(.{});
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// Standard optimization options allow the person running `zig build` to select
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// between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall. Here we do not
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// set a preferred release mode, allowing the user to decide how to optimize.
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const optimize = b.standardOptimizeOption(.{});
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const opt_elf64 = b.option(bool, "elf64", "ELF 64 bit").?;
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const opt_file = b.option(bool, "file", "Get auxiliary vectors from /proc/self/auxv") orelse false;
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const lib = b.addStaticLibrary(.{
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.name = "getauxval-backport",
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.target = target,
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.optimize = optimize,
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});
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lib.linkLibC();
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lib.addCSourceFile(.{
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.file = b.path("src/getauxval_backport.c"),
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.flags = &.{
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if (!opt_elf64) "-DGETAUXVAL_BACKPORT_ELF32" else "",
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if (opt_file) "-DGETAUXVAL_BACKPORT_FILE" else "",
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},
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});
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b.installArtifact(lib);
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// const exe = b.addExecutable(.{
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// .name = "getauxval-backport",
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// .root_source_file = b.path("src/main.zig"),
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// .target = target,
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// .optimize = optimize,
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// });
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// // This declares intent for the executable to be installed into the
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// // standard location when the user invokes the "install" step (the default
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// // step when running `zig build`).
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// b.installArtifact(exe);
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// // This *creates* a Run step in the build graph, to be executed when another
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// // step is evaluated that depends on it. The next line below will establish
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// // such a dependency.
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// const run_cmd = b.addRunArtifact(exe);
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// // By making the run step depend on the install step, it will be run from the
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// // installation directory rather than directly from within the cache directory.
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// // This is not necessary, however, if the application depends on other installed
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// // files, this ensures they will be present and in the expected location.
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// run_cmd.step.dependOn(b.getInstallStep());
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// // This allows the user to pass arguments to the application in the build
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// // command itself, like this: `zig build run -- arg1 arg2 etc`
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// if (b.args) |args| {
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// run_cmd.addArgs(args);
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// }
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// // This creates a build step. It will be visible in the `zig build --help` menu,
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// // and can be selected like this: `zig build run`
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// // This will evaluate the `run` step rather than the default, which is "install".
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// const run_step = b.step("run", "Run the app");
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// run_step.dependOn(&run_cmd.step);
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// // Creates a step for unit testing. This only builds the test executable
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// // but does not run it.
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// const lib_unit_tests = b.addTest(.{
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// .root_source_file = b.path("src/root.zig"),
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// .target = target,
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// .optimize = optimize,
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// });
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// const run_lib_unit_tests = b.addRunArtifact(lib_unit_tests);
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// const exe_unit_tests = b.addTest(.{
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// .root_source_file = b.path("src/main.zig"),
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// .target = target,
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// .optimize = optimize,
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// });
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// const run_exe_unit_tests = b.addRunArtifact(exe_unit_tests);
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// // Similar to creating the run step earlier, this exposes a `test` step to
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// // the `zig build --help` menu, providing a way for the user to request
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// // running the unit tests.
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// const test_step = b.step("test", "Run unit tests");
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// test_step.dependOn(&run_lib_unit_tests.step);
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// test_step.dependOn(&run_exe_unit_tests.step);
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}
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