3 # ignore-tidy-linelength
5 from __future__ import absolute_import, division, print_function
8 rust_dir = os.path.dirname(os.path.abspath(__file__))
9 rust_dir = os.path.dirname(rust_dir)
10 rust_dir = os.path.dirname(rust_dir)
11 sys.path.append(os.path.join(rust_dir, "src", "bootstrap"))
16 def __init__(self, name, rustbuild, desc, value):
18 self.rustbuild = rustbuild
27 options.append(Option(*args, value=False))
31 options.append(Option(*args, value=True))
34 o("debug", "rust.debug", "enables debugging environment; does not affect optimization of bootstrapped code (use `--disable-optimize` for that)")
35 o("docs", "build.docs", "build standard library documentation")
36 o("compiler-docs", "build.compiler-docs", "build compiler documentation")
37 o("optimize-tests", "rust.optimize-tests", "build tests with optimizations")
38 o("parallel-compiler", "rust.parallel-compiler", "build a multi-threaded rustc")
39 o("verbose-tests", "rust.verbose-tests", "enable verbose output when running tests")
40 o("ccache", "llvm.ccache", "invoke gcc/clang via ccache to reuse object files between builds")
41 o("sccache", None, "invoke gcc/clang via sccache to reuse object files between builds")
42 o("local-rust", None, "use an installed rustc rather than downloading a snapshot")
43 v("local-rust-root", None, "set prefix for local rust binary")
44 o("local-rebuild", "build.local-rebuild", "assume local-rust matches the current version, for rebuilds; implies local-rust, and is implied if local-rust already matches the current version")
45 o("llvm-static-stdcpp", "llvm.static-libstdcpp", "statically link to libstdc++ for LLVM")
46 o("llvm-link-shared", "llvm.link-shared", "prefer shared linking to LLVM (llvm-config --link-shared)")
47 o("rpath", "rust.rpath", "build rpaths into rustc itself")
48 o("llvm-version-check", "llvm.version-check", "check if the LLVM version is supported, build anyway")
49 o("codegen-tests", "rust.codegen-tests", "run the src/test/codegen tests")
50 o("option-checking", None, "complain about unrecognized options in this configure script")
51 o("ninja", "llvm.ninja", "build LLVM using the Ninja generator (for MSVC, requires building in the correct environment)")
52 o("locked-deps", "build.locked-deps", "force Cargo.lock to be up to date")
53 o("vendor", "build.vendor", "enable usage of vendored Rust crates")
54 o("sanitizers", "build.sanitizers", "build the sanitizer runtimes (asan, lsan, msan, tsan, hwasan)")
55 o("dist-src", "rust.dist-src", "when building tarballs enables building a source tarball")
56 o("cargo-native-static", "build.cargo-native-static", "static native libraries in cargo")
57 o("profiler", "build.profiler", "build the profiler runtime")
58 o("full-tools", None, "enable all tools")
59 o("lld", "rust.lld", "build lld")
60 o("clang", "llvm.clang", "build clang")
61 o("missing-tools", "dist.missing-tools", "allow failures when building tools")
62 o("use-libcxx", "llvm.use-libcxx", "build LLVM with libc++")
63 o("control-flow-guard", "rust.control-flow-guard", "Enable Control Flow Guard")
65 v("llvm-cflags", "llvm.cflags", "build LLVM with these extra compiler flags")
66 v("llvm-cxxflags", "llvm.cxxflags", "build LLVM with these extra compiler flags")
67 v("llvm-ldflags", "llvm.ldflags", "build LLVM with these extra linker flags")
69 v("llvm-libunwind", "rust.llvm-libunwind", "use LLVM libunwind")
71 # Optimization and debugging options. These may be overridden by the release
73 o("optimize", "rust.optimize", "build optimized rust code")
74 o("optimize-llvm", "llvm.optimize", "build optimized LLVM")
75 o("llvm-assertions", "llvm.assertions", "build LLVM with assertions")
76 o("llvm-plugins", "llvm.plugins", "build LLVM with plugin interface")
77 o("debug-assertions", "rust.debug-assertions", "build with debugging assertions")
78 o("overflow-checks", "rust.overflow-checks", "build with overflow checks")
79 o("overflow-checks-std", "rust.overflow-checks-std", "build the standard library with overflow checks")
80 o("llvm-release-debuginfo", "llvm.release-debuginfo", "build LLVM with debugger metadata")
81 v("debuginfo-level", "rust.debuginfo-level", "debuginfo level for Rust code")
82 v("debuginfo-level-rustc", "rust.debuginfo-level-rustc", "debuginfo level for the compiler")
83 v("debuginfo-level-std", "rust.debuginfo-level-std", "debuginfo level for the standard library")
84 v("debuginfo-level-tools", "rust.debuginfo-level-tools", "debuginfo level for the tools")
85 v("debuginfo-level-tests", "rust.debuginfo-level-tests", "debuginfo level for the test suites run with compiletest")
86 v("save-toolstates", "rust.save-toolstates", "save build and test status of external tools into this file")
88 v("prefix", "install.prefix", "set installation prefix")
89 v("localstatedir", "install.localstatedir", "local state directory")
90 v("datadir", "install.datadir", "install data")
91 v("sysconfdir", "install.sysconfdir", "install system configuration files")
92 v("infodir", "install.infodir", "install additional info")
93 v("libdir", "install.libdir", "install libraries")
94 v("mandir", "install.mandir", "install man pages in PATH")
95 v("docdir", "install.docdir", "install documentation in PATH")
96 v("bindir", "install.bindir", "install binaries")
98 v("llvm-root", None, "set LLVM root")
99 v("llvm-config", None, "set path to llvm-config")
100 v("llvm-filecheck", None, "set path to LLVM's FileCheck utility")
101 v("python", "build.python", "set path to python")
102 v("android-cross-path", "target.arm-linux-androideabi.android-ndk",
103 "Android NDK standalone path (deprecated)")
104 v("i686-linux-android-ndk", "target.i686-linux-android.android-ndk",
105 "i686-linux-android NDK standalone path")
106 v("arm-linux-androideabi-ndk", "target.arm-linux-androideabi.android-ndk",
107 "arm-linux-androideabi NDK standalone path")
108 v("armv7-linux-androideabi-ndk", "target.armv7-linux-androideabi.android-ndk",
109 "armv7-linux-androideabi NDK standalone path")
110 v("thumbv7neon-linux-androideabi-ndk", "target.thumbv7neon-linux-androideabi.android-ndk",
111 "thumbv7neon-linux-androideabi NDK standalone path")
112 v("aarch64-linux-android-ndk", "target.aarch64-linux-android.android-ndk",
113 "aarch64-linux-android NDK standalone path")
114 v("x86_64-linux-android-ndk", "target.x86_64-linux-android.android-ndk",
115 "x86_64-linux-android NDK standalone path")
116 v("musl-root", "target.x86_64-unknown-linux-musl.musl-root",
117 "MUSL root installation directory (deprecated)")
118 v("musl-root-x86_64", "target.x86_64-unknown-linux-musl.musl-root",
119 "x86_64-unknown-linux-musl install directory")
120 v("musl-root-i586", "target.i586-unknown-linux-musl.musl-root",
121 "i586-unknown-linux-musl install directory")
122 v("musl-root-i686", "target.i686-unknown-linux-musl.musl-root",
123 "i686-unknown-linux-musl install directory")
124 v("musl-root-arm", "target.arm-unknown-linux-musleabi.musl-root",
125 "arm-unknown-linux-musleabi install directory")
126 v("musl-root-armhf", "target.arm-unknown-linux-musleabihf.musl-root",
127 "arm-unknown-linux-musleabihf install directory")
128 v("musl-root-armv5te", "target.armv5te-unknown-linux-musleabi.musl-root",
129 "armv5te-unknown-linux-musleabi install directory")
130 v("musl-root-armv7", "target.armv7-unknown-linux-musleabi.musl-root",
131 "armv7-unknown-linux-musleabi install directory")
132 v("musl-root-armv7hf", "target.armv7-unknown-linux-musleabihf.musl-root",
133 "armv7-unknown-linux-musleabihf install directory")
134 v("musl-root-aarch64", "target.aarch64-unknown-linux-musl.musl-root",
135 "aarch64-unknown-linux-musl install directory")
136 v("musl-root-mips", "target.mips-unknown-linux-musl.musl-root",
137 "mips-unknown-linux-musl install directory")
138 v("musl-root-mipsel", "target.mipsel-unknown-linux-musl.musl-root",
139 "mipsel-unknown-linux-musl install directory")
140 v("musl-root-mips64", "target.mips64-unknown-linux-muslabi64.musl-root",
141 "mips64-unknown-linux-muslabi64 install directory")
142 v("musl-root-mips64el", "target.mips64el-unknown-linux-muslabi64.musl-root",
143 "mips64el-unknown-linux-muslabi64 install directory")
144 v("qemu-armhf-rootfs", "target.arm-unknown-linux-gnueabihf.qemu-rootfs",
145 "rootfs in qemu testing, you probably don't want to use this")
146 v("qemu-aarch64-rootfs", "target.aarch64-unknown-linux-gnu.qemu-rootfs",
147 "rootfs in qemu testing, you probably don't want to use this")
148 v("qemu-riscv64-rootfs", "target.riscv64gc-unknown-linux-gnu.qemu-rootfs",
149 "rootfs in qemu testing, you probably don't want to use this")
150 v("experimental-targets", "llvm.experimental-targets",
151 "experimental LLVM targets to build")
152 v("release-channel", "rust.channel", "the name of the release channel to build")
153 v("release-description", "rust.description", "optional descriptive string for version output")
154 v("dist-compression-formats", None,
155 "comma-separated list of compression formats to use")
157 # Used on systems where "cc" is unavailable
158 v("default-linker", "rust.default-linker", "the default linker")
160 # Many of these are saved below during the "writing configuration" step
161 # (others are conditionally saved).
162 o("manage-submodules", "build.submodules", "let the build manage the git submodules")
163 o("full-bootstrap", "build.full-bootstrap", "build three compilers instead of two")
164 o("extended", "build.extended", "build an extended rust tool set")
166 v("tools", None, "List of extended tools will be installed")
167 v("codegen-backends", None, "List of codegen backends to build")
168 v("build", "build.build", "GNUs ./configure syntax LLVM build triple")
169 v("host", None, "GNUs ./configure syntax LLVM host triples")
170 v("target", None, "GNUs ./configure syntax LLVM target triples")
172 v("set", None, "set arbitrary key/value pairs in TOML configuration")
176 print("configure: " + msg)
180 print("configure: error: " + msg)
184 if '--help' in sys.argv or '-h' in sys.argv:
185 print('Usage: ./configure [options]')
188 for option in options:
189 if 'android' in option.name:
190 # no one needs to know about these obscure options
193 print('\t{:30} {}'.format('--{}=VAL'.format(option.name), option.desc))
195 print('\t{:30} {}'.format('--enable-{}'.format(option.name), option.desc))
197 print('This configure script is a thin configuration shim over the true')
198 print('configuration system, `config.toml`. You can explore the comments')
199 print('in `config.toml.example` next to this configure script to see')
200 print('more information about what each option is. Additionally you can')
201 print('pass `--set` as an argument to set arbitrary key/value pairs')
202 print('in the TOML configuration if desired')
204 print('Also note that all options which take `--enable` can similarly')
205 print('be passed with `--disable-foo` to forcibly disable the option')
208 # Parse all command line arguments into one of these three lists, handling
209 # boolean and value-based options separately
214 p("processing command line")
216 while i < len(sys.argv):
219 if not arg.startswith('--'):
220 unknown_args.append(arg)
224 for option in options:
227 keyval = arg[2:].split('=', 1)
229 if option.name != key:
234 elif i < len(sys.argv):
238 need_value_args.append(arg)
241 if arg[2:] == 'enable-' + option.name:
243 elif arg[2:] == 'disable-' + option.name:
249 if option.name not in known_args:
250 known_args[option.name] = []
251 known_args[option.name].append((option, value))
255 unknown_args.append(arg)
258 # Note: here and a few other places, we use [-1] to apply the *last* value
259 # passed. But if option-checking is enabled, then the known_args loop will
260 # also assert that options are only passed once.
261 option_checking = ('option-checking' not in known_args
262 or known_args['option-checking'][-1][1])
264 if len(unknown_args) > 0:
265 err("Option '" + unknown_args[0] + "' is not recognized")
266 if len(need_value_args) > 0:
267 err("Option '{0}' needs a value ({0}=val)".format(need_value_args[0]))
269 # Parse all known arguments into a configuration structure that reflects the
270 # TOML we're going to write out
275 if 'build' in known_args:
276 return known_args['build'][-1][1]
277 return bootstrap.default_build_triple(verbose=False)
281 s = "{:20} := {}".format(key, value)
288 parts = key.split('.')
289 for i, part in enumerate(parts):
290 if i == len(parts) - 1:
298 for key in known_args:
299 # The `set` option is special and can be passed a bunch of times
301 for option, value in known_args[key]:
302 keyval = value.split('=', 1)
303 if len(keyval) == 1 or keyval[1] == "true":
305 elif keyval[1] == "false":
309 set(keyval[0], value)
312 # Ensure each option is only passed once
313 arr = known_args[key]
314 if option_checking and len(arr) > 1:
315 err("Option '{}' provided more than once".format(key))
316 option, value = arr[-1]
318 # If we have a clear avenue to set our value in rustbuild, do so
319 if option.rustbuild is not None:
320 set(option.rustbuild, value)
323 # Otherwise we're a "special" option and need some extra handling, so do
325 if option.name == 'sccache':
326 set('llvm.ccache', 'sccache')
327 elif option.name == 'local-rust':
328 for path in os.environ['PATH'].split(os.pathsep):
329 if os.path.exists(path + '/rustc'):
330 set('build.rustc', path + '/rustc')
332 for path in os.environ['PATH'].split(os.pathsep):
333 if os.path.exists(path + '/cargo'):
334 set('build.cargo', path + '/cargo')
336 elif option.name == 'local-rust-root':
337 set('build.rustc', value + '/bin/rustc')
338 set('build.cargo', value + '/bin/cargo')
339 elif option.name == 'llvm-root':
340 set('target.{}.llvm-config'.format(build()), value + '/bin/llvm-config')
341 elif option.name == 'llvm-config':
342 set('target.{}.llvm-config'.format(build()), value)
343 elif option.name == 'llvm-filecheck':
344 set('target.{}.llvm-filecheck'.format(build()), value)
345 elif option.name == 'tools':
346 set('build.tools', value.split(','))
347 elif option.name == 'codegen-backends':
348 set('rust.codegen-backends', value.split(','))
349 elif option.name == 'host':
350 set('build.host', value.split(','))
351 elif option.name == 'target':
352 set('build.target', value.split(','))
353 elif option.name == 'full-tools':
354 set('rust.codegen-backends', ['llvm'])
355 set('rust.lld', True)
356 set('rust.llvm-tools', True)
357 set('build.extended', True)
358 elif option.name == 'option-checking':
359 # this was handled above
361 elif option.name == 'dist-compression-formats':
362 set('dist.compression-formats', value.split(','))
364 raise RuntimeError("unhandled option {}".format(option.name))
366 set('build.configure-args', sys.argv[1:])
368 # "Parse" the `config.toml.example` file into the various sections, and we'll
369 # use this as a template of a `config.toml` to write out which preserves
370 # all the various comments and whatnot.
372 # Note that the `target` section is handled separately as we'll duplicate it
373 # per configured target, so there's a bit of special handling for that here.
377 section_order = [None]
380 for line in open(rust_dir + '/config.toml.example').read().split("\n"):
381 if line.startswith('['):
382 cur_section = line[1:-1]
383 if cur_section.startswith('target'):
384 cur_section = 'target'
385 elif '.' in cur_section:
386 raise RuntimeError("don't know how to deal with section: {}".format(cur_section))
387 sections[cur_section] = [line]
388 section_order.append(cur_section)
390 sections[cur_section].append(line)
392 # Fill out the `targets` array by giving all configured targets a copy of the
393 # `target` section we just loaded from the example config
394 configured_targets = [build()]
395 if 'build' in config:
396 if 'host' in config['build']:
397 configured_targets += config['build']['host']
398 if 'target' in config['build']:
399 configured_targets += config['build']['target']
400 if 'target' in config:
401 for target in config['target']:
402 configured_targets.append(target)
403 for target in configured_targets:
404 targets[target] = sections['target'][:]
405 targets[target][0] = targets[target][0].replace("x86_64-unknown-linux-gnu", target)
408 def is_number(value):
416 # Here we walk through the constructed configuration we have from the parsed
417 # command line arguments. We then apply each piece of configuration by
418 # basically just doing a `sed` to change the various configuration line to what
419 # we've got configure.
421 if isinstance(value, bool):
426 elif isinstance(value, list):
427 return '[' + ', '.join(map(to_toml, value)) + ']'
428 elif isinstance(value, str):
429 # Don't put quotes around numeric values
433 return "'" + value + "'"
435 raise RuntimeError('no toml')
438 def configure_section(lines, config):
442 for i, line in enumerate(lines):
443 if not line.startswith('#' + key + ' = '):
446 lines[i] = "{} = {}".format(key, to_toml(value))
449 # These are used by rpm, but aren't accepted by x.py.
450 # Give a warning that they're ignored, but not a hard error.
451 if key in ["infodir", "localstatedir"]:
452 print("warning: {} will be ignored".format(key))
454 raise RuntimeError("failed to find config line for {}".format(key))
457 for section_key in config:
458 section_config = config[section_key]
459 if section_key not in sections:
460 raise RuntimeError("config key {} not in sections".format(section_key))
462 if section_key == 'target':
463 for target in section_config:
464 configure_section(targets[target], section_config[target])
466 configure_section(sections[section_key], section_config)
468 # Now that we've built up our `config.toml`, write it all out in the same
469 # order that we read it in.
471 p("writing `config.toml` in current directory")
472 with bootstrap.output('config.toml') as f:
473 for section in section_order:
474 if section == 'target':
475 for target in targets:
476 for line in targets[target]:
479 for line in sections[section]:
482 with bootstrap.output('Makefile') as f:
483 contents = os.path.join(rust_dir, 'src', 'bootstrap', 'mk', 'Makefile.in')
484 contents = open(contents).read()
485 contents = contents.replace("$(CFG_SRC_DIR)", rust_dir + '/')
486 contents = contents.replace("$(CFG_PYTHON)", sys.executable)
490 p("run `python {}/x.py --help`".format(rust_dir))