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)")
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("lldb", "rust.lldb", "build lldb")
61 o("missing-tools", "dist.missing-tools", "allow failures when building tools")
62 o("use-libcxx", "llvm.use-libcxx", "build LLVM with libc++")
64 o("cflags", "llvm.cflags", "build LLVM with these extra compiler flags")
65 o("cxxflags", "llvm.cxxflags", "build LLVM with these extra compiler flags")
66 o("ldflags", "llvm.ldflags", "build LLVM with these extra linker flags")
68 o("llvm-libunwind", "rust.llvm-libunwind", "use LLVM libunwind")
70 # Optimization and debugging options. These may be overridden by the release
72 o("optimize", "rust.optimize", "build optimized rust code")
73 o("optimize-llvm", "llvm.optimize", "build optimized LLVM")
74 o("llvm-assertions", "llvm.assertions", "build LLVM with assertions")
75 o("debug-assertions", "rust.debug-assertions", "build with debugging assertions")
76 o("llvm-release-debuginfo", "llvm.release-debuginfo", "build LLVM with debugger metadata")
77 v("debuginfo-level", "rust.debuginfo-level", "debuginfo level for Rust code")
78 v("debuginfo-level-rustc", "rust.debuginfo-level-rustc", "debuginfo level for the compiler")
79 v("debuginfo-level-std", "rust.debuginfo-level-std", "debuginfo level for the standard library")
80 v("debuginfo-level-tools", "rust.debuginfo-level-tools", "debuginfo level for the tools")
81 v("debuginfo-level-tests", "rust.debuginfo-level-tests", "debuginfo level for the test suites run with compiletest")
82 v("save-toolstates", "rust.save-toolstates", "save build and test status of external tools into this file")
84 v("prefix", "install.prefix", "set installation prefix")
85 v("localstatedir", "install.localstatedir", "local state directory")
86 v("datadir", "install.datadir", "install data")
87 v("sysconfdir", "install.sysconfdir", "install system configuration files")
88 v("infodir", "install.infodir", "install additional info")
89 v("libdir", "install.libdir", "install libraries")
90 v("mandir", "install.mandir", "install man pages in PATH")
91 v("docdir", "install.docdir", "install documentation in PATH")
92 v("bindir", "install.bindir", "install binaries")
94 v("llvm-root", None, "set LLVM root")
95 v("llvm-config", None, "set path to llvm-config")
96 v("llvm-filecheck", None, "set path to LLVM's FileCheck utility")
97 v("python", "build.python", "set path to python")
98 v("android-cross-path", "target.arm-linux-androideabi.android-ndk",
99 "Android NDK standalone path (deprecated)")
100 v("i686-linux-android-ndk", "target.i686-linux-android.android-ndk",
101 "i686-linux-android NDK standalone path")
102 v("arm-linux-androideabi-ndk", "target.arm-linux-androideabi.android-ndk",
103 "arm-linux-androideabi NDK standalone path")
104 v("armv7-linux-androideabi-ndk", "target.armv7-linux-androideabi.android-ndk",
105 "armv7-linux-androideabi NDK standalone path")
106 v("thumbv7neon-linux-androideabi-ndk", "target.thumbv7neon-linux-androideabi.android-ndk",
107 "thumbv7neon-linux-androideabi NDK standalone path")
108 v("aarch64-linux-android-ndk", "target.aarch64-linux-android.android-ndk",
109 "aarch64-linux-android NDK standalone path")
110 v("x86_64-linux-android-ndk", "target.x86_64-linux-android.android-ndk",
111 "x86_64-linux-android NDK standalone path")
112 v("musl-root", "target.x86_64-unknown-linux-musl.musl-root",
113 "MUSL root installation directory (deprecated)")
114 v("musl-root-x86_64", "target.x86_64-unknown-linux-musl.musl-root",
115 "x86_64-unknown-linux-musl install directory")
116 v("musl-root-i586", "target.i586-unknown-linux-musl.musl-root",
117 "i586-unknown-linux-musl install directory")
118 v("musl-root-i686", "target.i686-unknown-linux-musl.musl-root",
119 "i686-unknown-linux-musl install directory")
120 v("musl-root-arm", "target.arm-unknown-linux-musleabi.musl-root",
121 "arm-unknown-linux-musleabi install directory")
122 v("musl-root-armhf", "target.arm-unknown-linux-musleabihf.musl-root",
123 "arm-unknown-linux-musleabihf install directory")
124 v("musl-root-armv5te", "target.armv5te-unknown-linux-musleabi.musl-root",
125 "armv5te-unknown-linux-musleabi install directory")
126 v("musl-root-armv7", "target.armv7-unknown-linux-musleabi.musl-root",
127 "armv7-unknown-linux-musleabi install directory")
128 v("musl-root-armv7hf", "target.armv7-unknown-linux-musleabihf.musl-root",
129 "armv7-unknown-linux-musleabihf install directory")
130 v("musl-root-aarch64", "target.aarch64-unknown-linux-musl.musl-root",
131 "aarch64-unknown-linux-musl install directory")
132 v("musl-root-mips", "target.mips-unknown-linux-musl.musl-root",
133 "mips-unknown-linux-musl install directory")
134 v("musl-root-mipsel", "target.mipsel-unknown-linux-musl.musl-root",
135 "mipsel-unknown-linux-musl install directory")
136 v("musl-root-mips64", "target.mips64-unknown-linux-muslabi64.musl-root",
137 "mips64-unknown-linux-muslabi64 install directory")
138 v("musl-root-mips64el", "target.mips64el-unknown-linux-muslabi64.musl-root",
139 "mips64el-unknown-linux-muslabi64 install directory")
140 v("qemu-armhf-rootfs", "target.arm-unknown-linux-gnueabihf.qemu-rootfs",
141 "rootfs in qemu testing, you probably don't want to use this")
142 v("qemu-aarch64-rootfs", "target.aarch64-unknown-linux-gnu.qemu-rootfs",
143 "rootfs in qemu testing, you probably don't want to use this")
144 v("experimental-targets", "llvm.experimental-targets",
145 "experimental LLVM targets to build")
146 v("release-channel", "rust.channel", "the name of the release channel to build")
148 # Used on systems where "cc" is unavailable
149 v("default-linker", "rust.default-linker", "the default linker")
151 # Many of these are saved below during the "writing configuration" step
152 # (others are conditionally saved).
153 o("manage-submodules", "build.submodules", "let the build manage the git submodules")
154 o("full-bootstrap", "build.full-bootstrap", "build three compilers instead of two")
155 o("extended", "build.extended", "build an extended rust tool set")
157 v("tools", None, "List of extended tools will be installed")
158 v("build", "build.build", "GNUs ./configure syntax LLVM build triple")
159 v("host", None, "GNUs ./configure syntax LLVM host triples")
160 v("target", None, "GNUs ./configure syntax LLVM target triples")
162 v("set", None, "set arbitrary key/value pairs in TOML configuration")
166 print("configure: " + msg)
170 print("configure: error: " + msg)
174 if '--help' in sys.argv or '-h' in sys.argv:
175 print('Usage: ./configure [options]')
178 for option in options:
179 if 'android' in option.name:
180 # no one needs to know about these obscure options
183 print('\t{:30} {}'.format('--{}=VAL'.format(option.name), option.desc))
185 print('\t{:30} {}'.format('--enable-{}'.format(option.name), option.desc))
187 print('This configure script is a thin configuration shim over the true')
188 print('configuration system, `config.toml`. You can explore the comments')
189 print('in `config.toml.example` next to this configure script to see')
190 print('more information about what each option is. Additionally you can')
191 print('pass `--set` as an argument to set arbitrary key/value pairs')
192 print('in the TOML configuration if desired')
194 print('Also note that all options which take `--enable` can similarly')
195 print('be passed with `--disable-foo` to forcibly disable the option')
198 # Parse all command line arguments into one of these three lists, handling
199 # boolean and value-based options separately
204 p("processing command line")
206 while i < len(sys.argv):
209 if not arg.startswith('--'):
210 unknown_args.append(arg)
214 for option in options:
217 keyval = arg[2:].split('=', 1)
219 if option.name != key:
224 elif i < len(sys.argv):
228 need_value_args.append(arg)
231 if arg[2:] == 'enable-' + option.name:
233 elif arg[2:] == 'disable-' + option.name:
239 if option.name not in known_args:
240 known_args[option.name] = []
241 known_args[option.name].append((option, value))
245 unknown_args.append(arg)
248 # Note: here and a few other places, we use [-1] to apply the *last* value
249 # passed. But if option-checking is enabled, then the known_args loop will
250 # also assert that options are only passed once.
251 option_checking = ('option-checking' not in known_args
252 or known_args['option-checking'][-1][1])
254 if len(unknown_args) > 0:
255 err("Option '" + unknown_args[0] + "' is not recognized")
256 if len(need_value_args) > 0:
257 err("Option '{0}' needs a value ({0}=val)".format(need_value_args[0]))
259 # Parse all known arguments into a configuration structure that reflects the
260 # TOML we're going to write out
265 if 'build' in known_args:
266 return known_args['build'][-1][1]
267 return bootstrap.default_build_triple()
271 s = "{:20} := {}".format(key, value)
278 parts = key.split('.')
279 for i, part in enumerate(parts):
280 if i == len(parts) - 1:
288 for key in known_args:
289 # The `set` option is special and can be passed a bunch of times
291 for option, value in known_args[key]:
292 keyval = value.split('=', 1)
293 if len(keyval) == 1 or keyval[1] == "true":
295 elif keyval[1] == "false":
299 set(keyval[0], value)
302 # Ensure each option is only passed once
303 arr = known_args[key]
304 if option_checking and len(arr) > 1:
305 err("Option '{}' provided more than once".format(key))
306 option, value = arr[-1]
308 # If we have a clear avenue to set our value in rustbuild, do so
309 if option.rustbuild is not None:
310 set(option.rustbuild, value)
313 # Otherwise we're a "special" option and need some extra handling, so do
315 if option.name == 'sccache':
316 set('llvm.ccache', 'sccache')
317 elif option.name == 'local-rust':
318 for path in os.environ['PATH'].split(os.pathsep):
319 if os.path.exists(path + '/rustc'):
320 set('build.rustc', path + '/rustc')
322 for path in os.environ['PATH'].split(os.pathsep):
323 if os.path.exists(path + '/cargo'):
324 set('build.cargo', path + '/cargo')
326 elif option.name == 'local-rust-root':
327 set('build.rustc', value + '/bin/rustc')
328 set('build.cargo', value + '/bin/cargo')
329 elif option.name == 'llvm-root':
330 set('target.{}.llvm-config'.format(build()), value + '/bin/llvm-config')
331 elif option.name == 'llvm-config':
332 set('target.{}.llvm-config'.format(build()), value)
333 elif option.name == 'llvm-filecheck':
334 set('target.{}.llvm-filecheck'.format(build()), value)
335 elif option.name == 'tools':
336 set('build.tools', value.split(','))
337 elif option.name == 'host':
338 set('build.host', value.split(','))
339 elif option.name == 'target':
340 set('build.target', value.split(','))
341 elif option.name == 'full-tools':
342 set('rust.codegen-backends', ['llvm'])
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))