| ... | ... | @@ -114,6 +114,7 @@ const Error = extern enum { |
| 114 | 114 | InvalidAbiVersion, |
| 115 | 115 | InvalidOperatingSystemVersion, |
| 116 | 116 | UnknownClangOption, |
| 117 | NestedResponseFile, |
| 117 | 118 | }; |
| 118 | 119 | |
| 119 | 120 | const FILE = std.c.FILE; |
| ... | ... | @@ -1259,6 +1260,7 @@ pub const ClangArgIterator = extern struct { |
| 1259 | 1260 | argv_ptr: [*]const [*:0]const u8, |
| 1260 | 1261 | argv_len: usize, |
| 1261 | 1262 | next_index: usize, |
| 1263 | root_args: ?*Args, |
| 1262 | 1264 | |
| 1263 | 1265 | // ABI warning |
| 1264 | 1266 | pub const ZigEquivalent = extern enum { |
| ... | ... | @@ -1289,7 +1291,13 @@ pub const ClangArgIterator = extern struct { |
| 1289 | 1291 | no_rtti, |
| 1290 | 1292 | }; |
| 1291 | 1293 | |
| 1292 | | fn init(argv: []const [*:0]const u8) ClangArgIterator { |
| 1294 | const Args = struct { |
| 1295 | next_index: usize, |
| 1296 | argv_ptr: [*]const [*:0]const u8, |
| 1297 | argv_len: usize, |
| 1298 | }; |
| 1299 | |
| 1300 | pub fn init(argv: []const [*:0]const u8) ClangArgIterator { |
| 1293 | 1301 | return .{ |
| 1294 | 1302 | .next_index = 2, // `zig cc foo` this points to `foo` |
| 1295 | 1303 | .has_next = argv.len > 2, |
| ... | ... | @@ -1300,22 +1308,74 @@ pub const ClangArgIterator = extern struct { |
| 1300 | 1308 | .other_args_len = undefined, |
| 1301 | 1309 | .argv_ptr = argv.ptr, |
| 1302 | 1310 | .argv_len = argv.len, |
| 1311 | .root_args = null, |
| 1303 | 1312 | }; |
| 1304 | 1313 | } |
| 1305 | 1314 | |
| 1306 | | fn next(self: *ClangArgIterator) !void { |
| 1315 | pub fn next(self: *ClangArgIterator) !void { |
| 1307 | 1316 | assert(self.has_next); |
| 1308 | 1317 | assert(self.next_index < self.argv_len); |
| 1309 | 1318 | // In this state we know that the parameter we are looking at is a root parameter |
| 1310 | 1319 | // rather than an argument to a parameter. |
| 1311 | 1320 | self.other_args_ptr = self.argv_ptr + self.next_index; |
| 1312 | 1321 | self.other_args_len = 1; // We adjust this value below when necessary. |
| 1313 | | const arg = mem.span(self.argv_ptr[self.next_index]); |
| 1314 | | self.next_index += 1; |
| 1315 | | defer { |
| 1316 | | if (self.next_index >= self.argv_len) self.has_next = false; |
| 1317 | | } |
| 1322 | var arg = mem.span(self.argv_ptr[self.next_index]); |
| 1323 | self.incrementArgIndex(); |
| 1324 | |
| 1325 | if (mem.startsWith(u8, arg, "@")) { |
| 1326 | if (self.root_args != null) return error.NestedResponseFile; |
| 1327 | |
| 1328 | // This is a "compiler response file". We must parse the file and treat its |
| 1329 | // contents as command line parameters. |
| 1330 | const allocator = std.heap.c_allocator; |
| 1331 | const max_bytes = 10 * 1024 * 1024; // 10 MiB of command line arguments is a reasonable limit |
| 1332 | const resp_file_path = arg[1..]; |
| 1333 | const resp_contents = fs.cwd().readFileAlloc(allocator, resp_file_path, max_bytes) catch |err| { |
| 1334 | std.debug.warn("unable to read response file '{}': {}\n", .{ resp_file_path, @errorName(err) }); |
| 1335 | process.exit(1); |
| 1336 | }; |
| 1337 | defer allocator.free(resp_contents); |
| 1338 | // TODO is there a specification for this file format? Let's find it and make this parsing more robust |
| 1339 | // at the very least I'm guessing this needs to handle quotes and `#` comments. |
| 1340 | var it = mem.tokenize(resp_contents, " \t\r\n"); |
| 1341 | var resp_arg_list = std.ArrayList([*:0]const u8).init(allocator); |
| 1342 | defer resp_arg_list.deinit(); |
| 1343 | { |
| 1344 | errdefer { |
| 1345 | for (resp_arg_list.span()) |item| { |
| 1346 | allocator.free(mem.span(item)); |
| 1347 | } |
| 1348 | } |
| 1349 | while (it.next()) |token| { |
| 1350 | const dupe_token = try mem.dupeZ(allocator, u8, token); |
| 1351 | errdefer allocator.free(dupe_token); |
| 1352 | try resp_arg_list.append(dupe_token); |
| 1353 | } |
| 1354 | const args = try allocator.create(Args); |
| 1355 | errdefer allocator.destroy(args); |
| 1356 | args.* = .{ |
| 1357 | .next_index = self.next_index, |
| 1358 | .argv_ptr = self.argv_ptr, |
| 1359 | .argv_len = self.argv_len, |
| 1360 | }; |
| 1361 | self.root_args = args; |
| 1362 | } |
| 1363 | const resp_arg_slice = resp_arg_list.toOwnedSlice(); |
| 1364 | self.next_index = 0; |
| 1365 | self.argv_ptr = resp_arg_slice.ptr; |
| 1366 | self.argv_len = resp_arg_slice.len; |
| 1367 | |
| 1368 | if (resp_arg_slice.len == 0) { |
| 1369 | self.resolveRespFileArgs(); |
| 1370 | return; |
| 1371 | } |
| 1318 | 1372 | |
| 1373 | self.has_next = true; |
| 1374 | self.other_args_ptr = self.argv_ptr + self.next_index; |
| 1375 | self.other_args_len = 1; // We adjust this value below when necessary. |
| 1376 | arg = mem.span(self.argv_ptr[self.next_index]); |
| 1377 | self.incrementArgIndex(); |
| 1378 | } |
| 1319 | 1379 | if (!mem.startsWith(u8, arg, "-")) { |
| 1320 | 1380 | self.zig_equivalent = .positional; |
| 1321 | 1381 | self.only_arg = arg.ptr; |
| ... | ... | @@ -1352,7 +1412,7 @@ pub const ClangArgIterator = extern struct { |
| 1352 | 1412 | process.exit(1); |
| 1353 | 1413 | } |
| 1354 | 1414 | self.only_arg = self.argv_ptr[self.next_index]; |
| 1355 | | self.next_index += 1; |
| 1415 | self.incrementArgIndex(); |
| 1356 | 1416 | self.other_args_len += 1; |
| 1357 | 1417 | self.zig_equivalent = clang_arg.zig_equivalent; |
| 1358 | 1418 | |
| ... | ... | @@ -1374,7 +1434,7 @@ pub const ClangArgIterator = extern struct { |
| 1374 | 1434 | process.exit(1); |
| 1375 | 1435 | } |
| 1376 | 1436 | self.second_arg = self.argv_ptr[self.next_index]; |
| 1377 | | self.next_index += 1; |
| 1437 | self.incrementArgIndex(); |
| 1378 | 1438 | self.other_args_len += 1; |
| 1379 | 1439 | self.zig_equivalent = clang_arg.zig_equivalent; |
| 1380 | 1440 | break :find_clang_arg; |
| ... | ... | @@ -1386,7 +1446,7 @@ pub const ClangArgIterator = extern struct { |
| 1386 | 1446 | process.exit(1); |
| 1387 | 1447 | } |
| 1388 | 1448 | self.only_arg = self.argv_ptr[self.next_index]; |
| 1389 | | self.next_index += 1; |
| 1449 | self.incrementArgIndex(); |
| 1390 | 1450 | self.other_args_len += 1; |
| 1391 | 1451 | self.zig_equivalent = clang_arg.zig_equivalent; |
| 1392 | 1452 | break :find_clang_arg; |
| ... | ... | @@ -1406,6 +1466,28 @@ pub const ClangArgIterator = extern struct { |
| 1406 | 1466 | process.exit(1); |
| 1407 | 1467 | } |
| 1408 | 1468 | } |
| 1469 | |
| 1470 | fn incrementArgIndex(self: *ClangArgIterator) void { |
| 1471 | self.next_index += 1; |
| 1472 | self.resolveRespFileArgs(); |
| 1473 | } |
| 1474 | |
| 1475 | fn resolveRespFileArgs(self: *ClangArgIterator) void { |
| 1476 | const allocator = std.heap.c_allocator; |
| 1477 | if (self.next_index >= self.argv_len) { |
| 1478 | if (self.root_args) |root_args| { |
| 1479 | self.next_index = root_args.next_index; |
| 1480 | self.argv_ptr = root_args.argv_ptr; |
| 1481 | self.argv_len = root_args.argv_len; |
| 1482 | |
| 1483 | allocator.destroy(root_args); |
| 1484 | self.root_args = null; |
| 1485 | } |
| 1486 | if (self.next_index >= self.argv_len) { |
| 1487 | self.has_next = false; |
| 1488 | } |
| 1489 | } |
| 1490 | } |
| 1409 | 1491 | }; |
| 1410 | 1492 | |
| 1411 | 1493 | export fn stage2_clang_arg_iterator( |
| ... | ... | @@ -1418,7 +1500,8 @@ export fn stage2_clang_arg_iterator( |
| 1418 | 1500 | |
| 1419 | 1501 | export fn stage2_clang_arg_next(it: *ClangArgIterator) Error { |
| 1420 | 1502 | it.next() catch |err| switch (err) { |
| 1421 | | error.UnknownClangOption => return .UnknownClangOption, |
| 1503 | error.NestedResponseFile => return .NestedResponseFile, |
| 1504 | error.OutOfMemory => return .OutOfMemory, |
| 1422 | 1505 | }; |
| 1423 | 1506 | return .None; |
| 1424 | 1507 | } |