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| Original file line number | Diff line number | Diff line change |
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| .zig-cache | ||
| zig-out |
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| @@ -0,0 +1,5 @@ | ||
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| https://richiejp.com/zig-ld-preload-trick |
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| Original file line number | Diff line number | Diff line change |
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| const std = @import("std"); | ||
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| pub const InjectorBuildError = error{UnsupportedArchitecturError}; | ||
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| // Although this function looks imperative, note that its job is to | ||
| // declaratively construct a build graph that will be executed by an external | ||
| // runner. | ||
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| pub fn build(b: *std.Build) !void { | ||
| const optimize = b.standardOptimizeOption(.{}); | ||
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| var targetCpuArch = std.Target.Cpu.Arch.aarch64; | ||
| var targetCpuModel = std.Target.Cpu.Model.generic(std.Target.Cpu.Arch.aarch64); | ||
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| if (b.option([]const u8, "cpu-arch", "The system architecture to compile the injector for; valid options are 'amd64' and 'arch64' (default)")) |val| { | ||
| if (std.mem.eql(u8, "arm64", val)) { | ||
| // Nothing to do | ||
| } else if (std.mem.eql(u8, "amd64", val)) { | ||
| targetCpuArch = std.Target.Cpu.Arch.x86_64; | ||
| targetCpuModel = std.Target.Cpu.Model.generic(std.Target.Cpu.Arch.x86_64); | ||
| } else { | ||
| return error.UnsupportedArchitecturError; | ||
| } | ||
| } | ||
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| const target = b.resolveTargetQuery(.{ | ||
| .cpu_arch = targetCpuArch, | ||
| // Skip cpu model detection because the automatic detection for transpiling fails in build | ||
| .cpu_model = .{ .explicit = targetCpuModel }, | ||
| .os_tag = .linux, | ||
| }); | ||
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| const lib = b.addSharedLibrary(.{ | ||
| .name = "injector", | ||
| // In this case the main source file is merely a path, however, in more | ||
| // complicated build scripts, this could be a generated file. | ||
| .root_source_file = b.path("src/dash0_injector.zig"), | ||
| .target = target, | ||
| .optimize = optimize, | ||
| .link_libc = false, | ||
| .pic = true, | ||
| .strip = false, | ||
| }); | ||
| lib.setVersionScript(b.path("src/dash0_injector.exports.map")); | ||
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| b.getInstallStep().dependOn(&b.addInstallArtifact(lib, .{ .dest_dir = .{ .override = .{ .custom = "." } } }).step); | ||
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| var copy_injector_to_bin = b.step("copy_file", "Copy injector file"); | ||
| copy_injector_to_bin.makeFn = copyInjectorFile; | ||
| copy_injector_to_bin.dependOn(b.getInstallStep()); | ||
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| b.default_step = copy_injector_to_bin; | ||
| } | ||
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| fn copyInjectorFile(step: *std.Build.Step, _: std.Progress.Node) anyerror!void { | ||
| const source_path = step.owner.pathFromRoot("./zig-out/libinjector.so"); | ||
| const dest_path = step.owner.pathFromRoot("./bin/dash0_injector.so"); | ||
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| try std.fs.copyFileAbsolute(source_path, dest_path, .{}); | ||
| } |
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| .{ | ||
| // This is the default name used by packages depending on this one. For | ||
| // example, when a user runs `zig fetch --save <url>`, this field is used | ||
| // as the key in the `dependencies` table. Although the user can choose a | ||
| // different name, most users will stick with this provided value. | ||
| // | ||
| // It is redundant to include "zig" in this name because it is already | ||
| // within the Zig package namespace. | ||
| .name = "injector", | ||
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| // This is a [Semantic Version](https://semver.org/). | ||
| // In a future version of Zig it will be used for package deduplication. | ||
| .version = "0.0.0", | ||
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| // This field is optional. | ||
| // This is currently advisory only; Zig does not yet do anything | ||
| // with this value. | ||
| //.minimum_zig_version = "0.11.0", | ||
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| // This field is optional. | ||
| // Each dependency must either provide a `url` and `hash`, or a `path`. | ||
| // `zig build --fetch` can be used to fetch all dependencies of a package, recursively. | ||
| // Once all dependencies are fetched, `zig build` no longer requires | ||
| // internet connectivity. | ||
| .dependencies = .{ | ||
| // See `zig fetch --save <url>` for a command-line interface for adding dependencies. | ||
| //.example = .{ | ||
| // // When updating this field to a new URL, be sure to delete the corresponding | ||
| // // `hash`, otherwise you are communicating that you expect to find the old hash at | ||
| // // the new URL. | ||
| // .url = "https://example.com/foo.tar.gz", | ||
| // | ||
| // // This is computed from the file contents of the directory of files that is | ||
| // // obtained after fetching `url` and applying the inclusion rules given by | ||
| // // `paths`. | ||
| // // | ||
| // // This field is the source of truth; packages do not come from a `url`; they | ||
| // // come from a `hash`. `url` is just one of many possible mirrors for how to | ||
| // // obtain a package matching this `hash`. | ||
| // // | ||
| // // Uses the [multihash](https://multiformats.io/multihash/) format. | ||
| // .hash = "...", | ||
| // | ||
| // // When this is provided, the package is found in a directory relative to the | ||
| // // build root. In this case the package's hash is irrelevant and therefore not | ||
| // // computed. This field and `url` are mutually exclusive. | ||
| // .path = "foo", | ||
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| // // When this is set to `true`, a package is declared to be lazily | ||
| // // fetched. This makes the dependency only get fetched if it is | ||
| // // actually used. | ||
| // .lazy = false, | ||
| //}, | ||
| }, | ||
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| // Specifies the set of files and directories that are included in this package. | ||
| // Only files and directories listed here are included in the `hash` that | ||
| // is computed for this package. Only files listed here will remain on disk | ||
| // when using the zig package manager. As a rule of thumb, one should list | ||
| // files required for compilation plus any license(s). | ||
| // Paths are relative to the build root. Use the empty string (`""`) to refer to | ||
| // the build root itself. | ||
| // A directory listed here means that all files within, recursively, are included. | ||
| .paths = .{ | ||
| "build.zig", | ||
| "build.zig.zon", | ||
| "src", | ||
| // For example... | ||
| //"LICENSE", | ||
| //"README.md", | ||
| }, | ||
| } |
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