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("test-miri", "rust.test-miri", "run miri's test suite")
40 o("verbose-tests", "rust.verbose-tests", "enable verbose output when running tests")
41 o("ccache", "llvm.ccache", "invoke gcc/clang via ccache to reuse object files between builds")
42 o("sccache", None, "invoke gcc/clang via sccache to reuse object files between builds")
43 o("local-rust", None, "use an installed rustc rather than downloading a snapshot")
44 v("local-rust-root", None, "set prefix for local rust binary")
45 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")
46 o("llvm-static-stdcpp", "llvm.static-libstdcpp", "statically link to libstdc++ for LLVM")
47 o("llvm-link-shared", "llvm.link-shared", "prefer shared linking to LLVM (llvm-config --link-shared)")
48 o("rpath", "rust.rpath", "build rpaths into rustc itself")
49 o("llvm-version-check", "llvm.version-check", "check if the LLVM version is supported, build anyway")
50 o("codegen-tests", "rust.codegen-tests", "run the src/test/codegen tests")
51 o("option-checking", None, "complain about unrecognized options in this configure script")
52 o("ninja", "llvm.ninja", "build LLVM using the Ninja generator (for MSVC, requires building in the correct environment)")
53 o("locked-deps", "build.locked-deps", "force Cargo.lock to be up to date")
54 o("vendor", "build.vendor", "enable usage of vendored Rust crates")
55 o("sanitizers", "build.sanitizers", "build the sanitizer runtimes (asan, lsan, msan, tsan)")
56 o("dist-src", "rust.dist-src", "when building tarballs enables building a source tarball")
57 o("cargo-native-static", "build.cargo-native-static", "static native libraries in cargo")
58 o("profiler", "build.profiler", "build the profiler runtime")
59 o("emscripten", None, "compile the emscripten backend as well as LLVM")
60 o("full-tools", None, "enable all tools")
61 o("lld", "rust.lld", "build lld")
62 o("lldb", "rust.lldb", "build lldb")
63 o("missing-tools", "dist.missing-tools", "allow failures when building tools")
64 o("use-libcxx", "llvm.use_libcxx", "build LLVM with libc++")
66 o("cflags", "llvm.cflags", "build LLVM with these extra compiler flags")
67 o("cxxflags", "llvm.cxxflags", "build LLVM with these extra compiler flags")
68 o("ldflags", "llvm.ldflags", "build LLVM with these extra linker flags")
70 o("llvm-libunwind", "rust.llvm_libunwind", "use LLVM libunwind")
72 # Optimization and debugging options. These may be overridden by the release
74 o("optimize", "rust.optimize", "build optimized rust code")
75 o("optimize-llvm", "llvm.optimize", "build optimized LLVM")
76 o("llvm-assertions", "llvm.assertions", "build LLVM with assertions")
77 o("debug-assertions", "rust.debug-assertions", "build with debugging assertions")
78 o("llvm-release-debuginfo", "llvm.release-debuginfo", "build LLVM with debugger metadata")
79 v("debuginfo-level", "rust.debuginfo-level", "debuginfo level for Rust code")
80 v("debuginfo-level-rustc", "rust.debuginfo-level-rustc", "debuginfo level for the compiler")
81 v("debuginfo-level-std", "rust.debuginfo-level-std", "debuginfo level for the standard library")
82 v("debuginfo-level-tools", "rust.debuginfo-level-tools", "debuginfo level for the tools")
83 v("debuginfo-level-tests", "rust.debuginfo-level-tests", "debuginfo level for the test suites run with compiletest")
84 v("save-toolstates", "rust.save-toolstates", "save build and test status of external tools into this file")
86 v("prefix", "install.prefix", "set installation prefix")
87 v("localstatedir", "install.localstatedir", "local state directory")
88 v("datadir", "install.datadir", "install data")
89 v("sysconfdir", "install.sysconfdir", "install system configuration files")
90 v("infodir", "install.infodir", "install additional info")
91 v("libdir", "install.libdir", "install libraries")
92 v("mandir", "install.mandir", "install man pages in PATH")
93 v("docdir", "install.docdir", "install documentation in PATH")
94 v("bindir", "install.bindir", "install binaries")
96 v("llvm-root", None, "set LLVM root")
97 v("llvm-config", None, "set path to llvm-config")
98 v("llvm-filecheck", None, "set path to LLVM's FileCheck utility")
99 v("python", "build.python", "set path to python")
100 v("android-cross-path", "target.arm-linux-androideabi.android-ndk",
101 "Android NDK standalone path (deprecated)")
102 v("i686-linux-android-ndk", "target.i686-linux-android.android-ndk",
103 "i686-linux-android NDK standalone path")
104 v("arm-linux-androideabi-ndk", "target.arm-linux-androideabi.android-ndk",
105 "arm-linux-androideabi NDK standalone path")
106 v("armv7-linux-androideabi-ndk", "target.armv7-linux-androideabi.android-ndk",
107 "armv7-linux-androideabi NDK standalone path")
108 v("thumbv7neon-linux-androideabi-ndk", "target.thumbv7neon-linux-androideabi.android-ndk",
109 "thumbv7neon-linux-androideabi NDK standalone path")
110 v("aarch64-linux-android-ndk", "target.aarch64-linux-android.android-ndk",
111 "aarch64-linux-android NDK standalone path")
112 v("x86_64-linux-android-ndk", "target.x86_64-linux-android.android-ndk",
113 "x86_64-linux-android NDK standalone path")
114 v("musl-root", "target.x86_64-unknown-linux-musl.musl-root",
115 "MUSL root installation directory (deprecated)")
116 v("musl-root-x86_64", "target.x86_64-unknown-linux-musl.musl-root",
117 "x86_64-unknown-linux-musl install directory")
118 v("musl-root-i586", "target.i586-unknown-linux-musl.musl-root",
119 "i586-unknown-linux-musl install directory")
120 v("musl-root-i686", "target.i686-unknown-linux-musl.musl-root",
121 "i686-unknown-linux-musl install directory")
122 v("musl-root-arm", "target.arm-unknown-linux-musleabi.musl-root",
123 "arm-unknown-linux-musleabi install directory")
124 v("musl-root-armhf", "target.arm-unknown-linux-musleabihf.musl-root",
125 "arm-unknown-linux-musleabihf install directory")
126 v("musl-root-armv5te", "target.armv5te-unknown-linux-musleabi.musl-root",
127 "armv5te-unknown-linux-musleabi install directory")
128 v("musl-root-armv7", "target.armv7-unknown-linux-musleabi.musl-root",
129 "armv7-unknown-linux-musleabi install directory")
130 v("musl-root-armv7hf", "target.armv7-unknown-linux-musleabihf.musl-root",
131 "armv7-unknown-linux-musleabihf install directory")
132 v("musl-root-aarch64", "target.aarch64-unknown-linux-musl.musl-root",
133 "aarch64-unknown-linux-musl install directory")
134 v("musl-root-mips", "target.mips-unknown-linux-musl.musl-root",
135 "mips-unknown-linux-musl install directory")
136 v("musl-root-mipsel", "target.mipsel-unknown-linux-musl.musl-root",
137 "mipsel-unknown-linux-musl install directory")
138 v("qemu-armhf-rootfs", "target.arm-unknown-linux-gnueabihf.qemu-rootfs",
139 "rootfs in qemu testing, you probably don't want to use this")
140 v("qemu-aarch64-rootfs", "target.aarch64-unknown-linux-gnu.qemu-rootfs",
141 "rootfs in qemu testing, you probably don't want to use this")
142 v("experimental-targets", "llvm.experimental-targets",
143 "experimental LLVM targets to build")
144 v("release-channel", "rust.channel", "the name of the release channel to build")
146 # Used on systems where "cc" is unavailable
147 v("default-linker", "rust.default-linker", "the default linker")
149 # Many of these are saved below during the "writing configuration" step
150 # (others are conditionally saved).
151 o("manage-submodules", "build.submodules", "let the build manage the git submodules")
152 o("full-bootstrap", "build.full-bootstrap", "build three compilers instead of two")
153 o("extended", "build.extended", "build an extended rust tool set")
155 v("tools", None, "List of extended tools will be installed")
156 v("build", "build.build", "GNUs ./configure syntax LLVM build triple")
157 v("host", None, "GNUs ./configure syntax LLVM host triples")
158 v("target", None, "GNUs ./configure syntax LLVM target triples")
160 v("set", None, "set arbitrary key/value pairs in TOML configuration")
164 print("configure: " + msg)
168 print("configure: error: " + msg)
172 if '--help' in sys.argv or '-h' in sys.argv:
173 print('Usage: ./configure [options]')
176 for option in options:
177 if 'android' in option.name:
178 # no one needs to know about these obscure options
181 print('\t{:30} {}'.format('--{}=VAL'.format(option.name), option.desc))
183 print('\t{:30} {}'.format('--enable-{}'.format(option.name), option.desc))
185 print('This configure script is a thin configuration shim over the true')
186 print('configuration system, `config.toml`. You can explore the comments')
187 print('in `config.toml.example` next to this configure script to see')
188 print('more information about what each option is. Additionally you can')
189 print('pass `--set` as an argument to set arbitrary key/value pairs')
190 print('in the TOML configuration if desired')
192 print('Also note that all options which take `--enable` can similarly')
193 print('be passed with `--disable-foo` to forcibly disable the option')
196 # Parse all command line arguments into one of these three lists, handling
197 # boolean and value-based options separately
202 p("processing command line")
204 while i < len(sys.argv):
207 if not arg.startswith('--'):
208 unknown_args.append(arg)
212 for option in options:
215 keyval = arg[2:].split('=', 1)
217 if option.name != key:
222 elif i < len(sys.argv):
226 need_value_args.append(arg)
229 if arg[2:] == 'enable-' + option.name:
231 elif arg[2:] == 'disable-' + option.name:
237 if option.name not in known_args:
238 known_args[option.name] = []
239 known_args[option.name].append((option, value))
243 unknown_args.append(arg)
246 # Note: here and a few other places, we use [-1] to apply the *last* value
247 # passed. But if option-checking is enabled, then the known_args loop will
248 # also assert that options are only passed once.
249 option_checking = ('option-checking' not in known_args
250 or known_args['option-checking'][-1][1])
252 if len(unknown_args) > 0:
253 err("Option '" + unknown_args[0] + "' is not recognized")
254 if len(need_value_args) > 0:
255 err("Option '{0}' needs a value ({0}=val)".format(need_value_args[0]))
257 # Parse all known arguments into a configuration structure that reflects the
258 # TOML we're going to write out
263 if 'build' in known_args:
264 return known_args['build'][-1][1]
265 return bootstrap.default_build_triple()
269 s = "{:20} := {}".format(key, value)
276 parts = key.split('.')
277 for i, part in enumerate(parts):
278 if i == len(parts) - 1:
286 for key in known_args:
287 # The `set` option is special and can be passed a bunch of times
289 for option, value in known_args[key]:
290 keyval = value.split('=', 1)
291 if len(keyval) == 1 or keyval[1] == "true":
293 elif keyval[1] == "false":
297 set(keyval[0], value)
300 # Ensure each option is only passed once
301 arr = known_args[key]
302 if option_checking and len(arr) > 1:
303 err("Option '{}' provided more than once".format(key))
304 option, value = arr[-1]
306 # If we have a clear avenue to set our value in rustbuild, do so
307 if option.rustbuild is not None:
308 set(option.rustbuild, value)
311 # Otherwise we're a "special" option and need some extra handling, so do
313 if option.name == 'sccache':
314 set('llvm.ccache', 'sccache')
315 elif option.name == 'local-rust':
316 for path in os.environ['PATH'].split(os.pathsep):
317 if os.path.exists(path + '/rustc'):
318 set('build.rustc', path + '/rustc')
320 for path in os.environ['PATH'].split(os.pathsep):
321 if os.path.exists(path + '/cargo'):
322 set('build.cargo', path + '/cargo')
324 elif option.name == 'local-rust-root':
325 set('build.rustc', value + '/bin/rustc')
326 set('build.cargo', value + '/bin/cargo')
327 elif option.name == 'llvm-root':
328 set('target.{}.llvm-config'.format(build()), value + '/bin/llvm-config')
329 elif option.name == 'llvm-config':
330 set('target.{}.llvm-config'.format(build()), value)
331 elif option.name == 'llvm-filecheck':
332 set('target.{}.llvm-filecheck'.format(build()), value)
333 elif option.name == 'tools':
334 set('build.tools', value.split(','))
335 elif option.name == 'host':
336 set('build.host', value.split(','))
337 elif option.name == 'target':
338 set('build.target', value.split(','))
339 elif option.name == 'emscripten':
340 set('rust.codegen-backends', ['llvm', 'emscripten'])
341 elif option.name == 'full-tools':
342 set('rust.codegen-backends', ['llvm', 'emscripten'])
343 set('rust.lld', True)
344 set('rust.llvm-tools', True)
345 set('build.extended', True)
346 elif option.name == 'option-checking':
347 # this was handled above
350 raise RuntimeError("unhandled option {}".format(option.name))
352 set('build.configure-args', sys.argv[1:])
354 # "Parse" the `config.toml.example` file into the various sections, and we'll
355 # use this as a template of a `config.toml` to write out which preserves
356 # all the various comments and whatnot.
358 # Note that the `target` section is handled separately as we'll duplicate it
359 # per configured target, so there's a bit of special handling for that here.
363 section_order = [None]
366 for line in open(rust_dir + '/config.toml.example').read().split("\n"):
367 if line.startswith('['):
368 cur_section = line[1:-1]
369 if cur_section.startswith('target'):
370 cur_section = 'target'
371 elif '.' in cur_section:
372 raise RuntimeError("don't know how to deal with section: {}".format(cur_section))
373 sections[cur_section] = [line]
374 section_order.append(cur_section)
376 sections[cur_section].append(line)
378 # Fill out the `targets` array by giving all configured targets a copy of the
379 # `target` section we just loaded from the example config
380 configured_targets = [build()]
381 if 'build' in config:
382 if 'host' in config['build']:
383 configured_targets += config['build']['host']
384 if 'target' in config['build']:
385 configured_targets += config['build']['target']
386 if 'target' in config:
387 for target in config['target']:
388 configured_targets.append(target)
389 for target in configured_targets:
390 targets[target] = sections['target'][:]
391 targets[target][0] = targets[target][0].replace("x86_64-unknown-linux-gnu", target)
394 def is_number(value):
401 # Here we walk through the constructed configuration we have from the parsed
402 # command line arguments. We then apply each piece of configuration by
403 # basically just doing a `sed` to change the various configuration line to what
404 # we've got configure.
406 if isinstance(value, bool):
411 elif isinstance(value, list):
412 return '[' + ', '.join(map(to_toml, value)) + ']'
413 elif isinstance(value, str):
414 # Don't put quotes around numeric values
418 return "'" + value + "'"
420 raise RuntimeError('no toml')
423 def configure_section(lines, config):
427 for i, line in enumerate(lines):
428 if not line.startswith('#' + key + ' = '):
431 lines[i] = "{} = {}".format(key, to_toml(value))
434 raise RuntimeError("failed to find config line for {}".format(key))
437 for section_key in config:
438 section_config = config[section_key]
439 if section_key not in sections:
440 raise RuntimeError("config key {} not in sections".format(section_key))
442 if section_key == 'target':
443 for target in section_config:
444 configure_section(targets[target], section_config[target])
446 configure_section(sections[section_key], section_config)
448 # Now that we've built up our `config.toml`, write it all out in the same
449 # order that we read it in.
451 p("writing `config.toml` in current directory")
452 with bootstrap.output('config.toml') as f:
453 for section in section_order:
454 if section == 'target':
455 for target in targets:
456 for line in targets[target]:
459 for line in sections[section]:
462 with bootstrap.output('Makefile') as f:
463 contents = os.path.join(rust_dir, 'src', 'bootstrap', 'mk', 'Makefile.in')
464 contents = open(contents).read()
465 contents = contents.replace("$(CFG_SRC_DIR)", rust_dir + '/')
466 contents = contents.replace("$(CFG_PYTHON)", sys.executable)
470 p("run `python {}/x.py --help`".format(rust_dir))