| author |  Andrew Kelley <andrew@ziglang.org> 2025-10-28 08:47:39-07:00 |
| committer | Andrew Kelley <andrew@ziglang.org> 2025-10-29 06:20:52-07:00 |
| log | 6f64c8b693446a6f8d170bb09324e5c5e506ce6f |
| tree | 620a2126901c6d92536012ec6599c0b96759d313 |
| parent | 1553c8eae7d830cb793e78c3e52ad816fa8efd23 |
std.debug.SelfInfo.Windows: less invasive change
restores code closer to master branch in hopes of avoiding a regression
that was introduced when this was based on openSelfExe rather than
GetModuleFileNameExW.2 files changed, 16 insertions(+), 11 deletions(-)
lib- std
- debug
- SelfInfo
lib/std/Io/Threaded.zig+3-3
| ... | ... | @@ -2052,10 +2052,10 @@ fn dirOpenFileWindows( |
| 2052 | 2052 | const sub_path_w_array = try windows.sliceToPrefixedFileW(dir.handle, sub_path); |
| 2053 | 2053 | const sub_path_w = sub_path_w_array.span(); |
| 2054 | 2054 | const dir_handle = if (std.fs.path.isAbsoluteWindowsWtf16(sub_path_w)) null else dir.handle; |
| 2055 | return dirOpenFileWindowsInner(t, dir_handle, sub_path_w, flags); | |
| 2055 | return dirOpenFileWtf16(t, dir_handle, sub_path_w, flags); | |
| 2056 | 2056 | } |
| 2057 | 2057 | |
| 2058 | fn dirOpenFileWindowsInner( | |
| 2058 | pub fn dirOpenFileWtf16( | |
| 2059 | 2059 | t: *Threaded, |
| 2060 | 2060 | dir_handle: ?windows.HANDLE, |
| 2061 | 2061 | sub_path_w: [:0]const u16, |
| ... | ... | @@ -2800,7 +2800,7 @@ fn openSelfExe(userdata: ?*anyopaque, flags: Io.File.OpenFlags) Io.File.OpenSelf |
| 2800 | 2800 | const image_path_unicode_string = &windows.peb().ProcessParameters.ImagePathName; |
| 2801 | 2801 | const image_path_name = image_path_unicode_string.Buffer.?[0 .. image_path_unicode_string.Length / 2 :0]; |
| 2802 | 2802 | const prefixed_path_w = try windows.wToPrefixedFileW(null, image_path_name); |
| 2803 | return dirOpenFileWindowsInner(t, null, prefixed_path_w.span(), flags); | |
| 2803 | return dirOpenFileWtf16(t, null, prefixed_path_w.span(), flags); | |
| 2804 | 2804 | }, |
| 2805 | 2805 | else => @panic("TODO implement openSelfExe"), |
| 2806 | 2806 | } |
lib/std/debug/SelfInfo/Windows.zig+13-8
| ... | ... | @@ -297,7 +297,19 @@ const Module = struct { |
| 297 | 297 | // a binary is produced with -gdwarf, since the section names are longer than 8 bytes. |
| 298 | 298 | const mapped_file: ?DebugInfo.MappedFile = mapped: { |
| 299 | 299 | if (!coff_obj.strtabRequired()) break :mapped null; |
| 300 | const coff_file = Io.File.openSelfExe(io, .{}) catch |err| switch (err) { | |
| 300 | var name_buffer: [windows.PATH_MAX_WIDE + 4:0]u16 = undefined; | |
| 301 | name_buffer[0..4].* = .{ '\\', '?', '?', '\\' }; // openFileAbsoluteW requires the prefix to be present | |
| 302 | const process_handle = windows.GetCurrentProcess(); | |
| 303 | const len = windows.kernel32.GetModuleFileNameExW( | |
| 304 | process_handle, | |
| 305 | module.handle, | |
| 306 | name_buffer[4..], | |
| 307 | windows.PATH_MAX_WIDE, | |
| 308 | ); | |
| 309 | if (len == 0) return error.MissingDebugInfo; | |
| 310 | const name_w = name_buffer[0 .. len + 4 :0]; | |
| 311 | var threaded: Io.Threaded = .init_single_threaded; | |
| 312 | const coff_file = threaded.dirOpenFileWtf16(null, name_w, .{}) catch |err| switch (err) { | |
| 301 | 313 | error.Canceled => |e| return e, |
| 302 | 314 | error.Unexpected => |e| return e, |
| 303 | 315 | error.FileNotFound => return error.MissingDebugInfo, |
| ... | ... | @@ -327,12 +339,6 @@ const Module = struct { |
| 327 | 339 | error.SystemFdQuotaExceeded, |
| 328 | 340 | error.FileLocksNotSupported, |
| 329 | 341 | error.FileBusy, |
| 330 | error.InputOutput, | |
| 331 | error.NotSupported, | |
| 332 | error.FileSystem, | |
| 333 | error.NotLink, | |
| 334 | error.UnrecognizedVolume, | |
| 335 | error.UnknownName, | |
| 336 | 342 | => return error.ReadFailed, |
| 337 | 343 | }; |
| 338 | 344 | errdefer coff_file.close(io); |
| ... | ... | @@ -352,7 +358,6 @@ const Module = struct { |
| 352 | 358 | errdefer windows.CloseHandle(section_handle); |
| 353 | 359 | var coff_len: usize = 0; |
| 354 | 360 | var section_view_ptr: ?[*]const u8 = null; |
| 355 | const process_handle = windows.GetCurrentProcess(); | |
| 356 | 361 | const map_section_rc = windows.ntdll.NtMapViewOfSection( |
| 357 | 362 | section_handle, |
| 358 | 363 | process_handle, |