Add valgrind debugging

Changes

4 changed files (+82/-2)

• cli/build.zig
  • @@ -43,6 +43,15 @@ };
    // Executable { + const calloc = b.option( + bool, + "calloc", + "Use libc allocator, to inspect allocations using Valgrind", + ) orelse false; + + const options = b.addOptions(); + options.addOption(bool, "calloc", calloc); + const exe = b.addExecutable(.{ .name = "plac", .root_module = b.createModule(.{
  • @@ -54,6 +63,11 @@ });
    exe.root_module.addImport("core", core); exe.root_module.addImport("clap", clap); + exe.root_module.addOptions("build_config", options); + + if (calloc) { + exe.linkLibC(); + } b.installArtifact(exe); }
• cli/src/main.zig
  • @@ -16,6 +16,7 @@ // SPDX-License-Identifier: Apache-2.0
    const std = @import("std"); const clap = @import("clap"); + const build_config = @import("build_config"); const exit = @import("./exit.zig").exit; const server = @import("./commands/server.zig");
  • @@ -42,7 +43,9 @@ \\
    ); pub fn main() !void { - var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator); + var arena = std.heap.ArenaAllocator.init( + if (build_config.calloc) std.heap.c_allocator else std.heap.page_allocator, + ); defer arena.deinit(); const allocator = arena.allocator();
• devbox.json
  • @@ -8,7 +8,8 @@ "reuse@5.0.2",
    "dprint@0.49.1", "zig@0.14.0", "zls@0.14.0", - "uncrustify@0.80" + "uncrustify@0.80", + "valgrind@3.24.0" ], "shell": { "scripts": {
• devbox.lock
  • @@ -564,6 +564,68 @@ "store_path": "/nix/store/074blln3yn5bbahzh6g366wgh8cz6wld-vala-0.56.17"
    } } }, + "valgrind@3.24.0": { + "last_modified": "2025-04-13T09:22:33Z", + "resolved": "github:NixOS/nixpkgs/18dd725c29603f582cf1900e0d25f9f1063dbf11#valgrind", + "source": "devbox-search", + "version": "3.24.0", + "systems": { + "aarch64-linux": { + "outputs": [ + { + "name": "out", + "path": "/nix/store/d9fgg4pvp82mp4qnhbnawnlw0a6cvczw-valgrind-3.24.0", + "default": true + }, + { + "name": "man", + "path": "/nix/store/5kmk79fciznha16f7y8jrcvy6lj8zd49-valgrind-3.24.0-man", + "default": true + }, + { + "name": "debug", + "path": "/nix/store/98m2b30fqzd2dl2msf13n5gvg1xvs2jb-valgrind-3.24.0-debug" + }, + { + "name": "dev", + "path": "/nix/store/pmda2kd2w60np66vr0na8pvwvdr3953w-valgrind-3.24.0-dev" + }, + { + "name": "doc", + "path": "/nix/store/k63q4m1q1jvsf80hix0abkxs7l18fpam-valgrind-3.24.0-doc" + } + ], + "store_path": "/nix/store/d9fgg4pvp82mp4qnhbnawnlw0a6cvczw-valgrind-3.24.0" + }, + "x86_64-linux": { + "outputs": [ + { + "name": "out", + "path": "/nix/store/cawr37dyifswi0zfkx1gygc7h16489g4-valgrind-3.24.0", + "default": true + }, + { + "name": "man", + "path": "/nix/store/2f2gf5w46j4927kqmx1pmb13frjwcidr-valgrind-3.24.0-man", + "default": true + }, + { + "name": "debug", + "path": "/nix/store/4b1kfv7m3n2zlv7qy2vyg33yvy28dzcc-valgrind-3.24.0-debug" + }, + { + "name": "dev", + "path": "/nix/store/hlly45zaqv5l4xhbcd6m55w396pgg06p-valgrind-3.24.0-dev" + }, + { + "name": "doc", + "path": "/nix/store/pwj9w02s8y026harrxqq2l5ygnh3i0af-valgrind-3.24.0-doc" + } + ], + "store_path": "/nix/store/cawr37dyifswi0zfkx1gygc7h16489g4-valgrind-3.24.0" + } + } + }, "zig@0.14.0": { "last_modified": "2025-03-23T05:31:05Z", "resolved": "github:NixOS/nixpkgs/dd613136ee91f67e5dba3f3f41ac99ae89c5406b#zig",