diff --git a/lib/std/debug/Dwarf.zig b/lib/std/debug/Dwarf.zig index eb14b3168d..6bbe43274f 100644 --- a/lib/std/debug/Dwarf.zig +++ b/lib/std/debug/Dwarf.zig @@ -2215,6 +2215,46 @@ pub const ElfModule = struct { return error.MissingDebugInfo; } + // $XDG_CACHE_HOME/debuginfod_client//debuginfo + // This only opportunisticly tries to load from the debuginfod cache, but doesn't try to populate it. + // One can manually run `debuginfod-find debuginfo PATH` to download the symbols + if (build_id) |id| blk: { + var debuginfod_dir: std.fs.Dir = switch (builtin.os.tag) { + .wasi, .windows => break :blk, + else => dir: { + if (std.posix.getenv("DEBUGINFOD_CACHE_PATH")) |path| { + break :dir std.fs.openDirAbsolute(path, .{}) catch break :blk; + } + if (std.posix.getenv("XDG_CACHE_HOME")) |cache_path| { + const path = std.fs.path.join(gpa, &[_][]const u8{ cache_path, "debuginfod_client" }) catch break :blk; + defer gpa.free(path); + break :dir std.fs.openDirAbsolute(path, .{}) catch break :blk; + } + if (std.posix.getenv("HOME")) |home_path| { + const path = std.fs.path.join(gpa, &[_][]const u8{ home_path, ".cache", "debuginfod_client" }) catch break :blk; + defer gpa.free(path); + break :dir std.fs.openDirAbsolute(path, .{}) catch break :blk; + } + break :blk; + }, + }; + defer debuginfod_dir.close(); + + const filename = std.fmt.allocPrint( + gpa, + "{s}/debuginfo", + .{std.fmt.fmtSliceHexLower(id)}, + ) catch break :blk; + defer gpa.free(filename); + + const path: Path = .{ + .root_dir = .{ .path = null, .handle = debuginfod_dir }, + .sub_path = filename, + }; + + return loadPath(gpa, path, null, separate_debug_crc, §ions, mapped_mem) catch break :blk; + } + const global_debug_directories = [_][]const u8{ "/usr/lib/debug", };