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std.debug.Info: basic Mach-O support

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Matthew Lugg 2025-11-19 12:19:22 +00:00
parent 0caca625eb
commit 0a330d4f94
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3 changed files with 117 additions and 38 deletions
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35
tools/dump-cov.zig
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@ -8,31 +8,50 @@ const assert = std.debug.assert;
const SeenPcsHeader = std.Build.abi.fuzz.SeenPcsHeader;
pub fn main() !void {
var general_purpose_allocator: std.heap.GeneralPurposeAllocator(.{}) = .init;
defer _ = general_purpose_allocator.deinit();
const gpa = general_purpose_allocator.allocator();
var debug_allocator: std.heap.DebugAllocator(.{}) = .init;
defer _ = debug_allocator.deinit();
const gpa = debug_allocator.allocator();
var arena_instance = std.heap.ArenaAllocator.init(gpa);
var arena_instance: std.heap.ArenaAllocator = .init(gpa);
defer arena_instance.deinit();
const arena = arena_instance.allocator();
var threaded: std.Io.Threaded = .init(gpa);
defer threaded.deinit();
const io = threaded.io();
const args = try std.process.argsAlloc(arena);
const target_query_str = switch (args.len) {
3 => "native",
4 => args[3],
else => return fatal(
\\usage: {0s} path/to/exe path/to/coverage [target]
\\ if omitted, 'target' defaults to 'native'
\\ example: {0s} zig-out/test .zig-cache/v/xxxxxxxx x86_64-linux
, .{if (args.len == 0) "dump-cov" else args[0]}),
};
const target = std.zig.resolveTargetQueryOrFatal(io, try .parse(.{
.arch_os_abi = target_query_str,
}));
const exe_file_name = args[1];
const cov_file_name = args[2];
const exe_path: Path = .{
.root_dir = std.Build.Cache.Directory.cwd(),
.root_dir = .cwd(),
.sub_path = exe_file_name,
};
const cov_path: Path = .{
.root_dir = std.Build.Cache.Directory.cwd(),
.root_dir = .cwd(),
.sub_path = cov_file_name,
};
var coverage = std.debug.Coverage.init;
var coverage: std.debug.Coverage = .init;
defer coverage.deinit(gpa);
var debug_info = std.debug.Info.load(gpa, exe_path, &coverage) catch |err| {
var debug_info = std.debug.Info.load(gpa, exe_path, &coverage, target.ofmt, target.cpu.arch) catch |err| {
fatal("failed to load debug info for {f}: {s}", .{ exe_path, @errorName(err) });
};
defer debug_info.deinit(gpa);