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("emscripten", None, "compile the emscripten backend as well as LLVM")
59 o("full-tools", None, "enable all tools")
60 o("lld", "rust.lld", "build lld")
61 o("lldb", "rust.lldb", "build lldb")
62 o("missing-tools", "dist.missing-tools", "allow failures when building tools")
63 o("use-libcxx", "llvm.use_libcxx", "build LLVM with libc++")
65 o("cflags", "llvm.cflags", "build LLVM with these extra compiler flags")
66 o("cxxflags", "llvm.cxxflags", "build LLVM with these extra compiler flags")
67 o("ldflags", "llvm.ldflags", "build LLVM with these extra linker flags")
69 o("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("debug-assertions", "rust.debug-assertions", "build with debugging assertions")
77 o("llvm-release-debuginfo", "llvm.release-debuginfo", "build LLVM with debugger metadata")
78 v("debuginfo-level", "rust.debuginfo-level", "debuginfo level for Rust code")
79 v("debuginfo-level-rustc", "rust.debuginfo-level-rustc", "debuginfo level for the compiler")
80 v("debuginfo-level-std", "rust.debuginfo-level-std", "debuginfo level for the standard library")
81 v("debuginfo-level-tools", "rust.debuginfo-level-tools", "debuginfo level for the tools")
82 v("debuginfo-level-tests", "rust.debuginfo-level-tests", "debuginfo level for the test suites run with compiletest")
83 v("save-toolstates", "rust.save-toolstates", "save build and test status of external tools into this file")
85 v("prefix", "install.prefix", "set installation prefix")
86 v("localstatedir", "install.localstatedir", "local state directory")
87 v("datadir", "install.datadir", "install data")
88 v("sysconfdir", "install.sysconfdir", "install system configuration files")
89 v("infodir", "install.infodir", "install additional info")
90 v("libdir", "install.libdir", "install libraries")
91 v("mandir", "install.mandir", "install man pages in PATH")
92 v("docdir", "install.docdir", "install documentation in PATH")
93 v("bindir", "install.bindir", "install binaries")
95 v("llvm-root", None, "set LLVM root")
96 v("llvm-config", None, "set path to llvm-config")
97 v("llvm-filecheck", None, "set path to LLVM's FileCheck utility")
98 v("python", "build.python", "set path to python")
99 v("android-cross-path", "target.arm-linux-androideabi.android-ndk",
100 "Android NDK standalone path (deprecated)")
101 v("i686-linux-android-ndk", "target.i686-linux-android.android-ndk",
102 "i686-linux-android NDK standalone path")
103 v("arm-linux-androideabi-ndk", "target.arm-linux-androideabi.android-ndk",
104 "arm-linux-androideabi NDK standalone path")
105 v("armv7-linux-androideabi-ndk", "target.armv7-linux-androideabi.android-ndk",
106 "armv7-linux-androideabi NDK standalone path")
107 v("thumbv7neon-linux-androideabi-ndk", "target.thumbv7neon-linux-androideabi.android-ndk",
108 "thumbv7neon-linux-androideabi NDK standalone path")
109 v("aarch64-linux-android-ndk", "target.aarch64-linux-android.android-ndk",
110 "aarch64-linux-android NDK standalone path")
111 v("x86_64-linux-android-ndk", "target.x86_64-linux-android.android-ndk",
112 "x86_64-linux-android NDK standalone path")
113 v("musl-root", "target.x86_64-unknown-linux-musl.musl-root",
114 "MUSL root installation directory (deprecated)")
115 v("musl-root-x86_64", "target.x86_64-unknown-linux-musl.musl-root",
116 "x86_64-unknown-linux-musl install directory")
117 v("musl-root-i586", "target.i586-unknown-linux-musl.musl-root",
118 "i586-unknown-linux-musl install directory")
119 v("musl-root-i686", "target.i686-unknown-linux-musl.musl-root",
120 "i686-unknown-linux-musl install directory")
121 v("musl-root-arm", "target.arm-unknown-linux-musleabi.musl-root",
122 "arm-unknown-linux-musleabi install directory")
123 v("musl-root-armhf", "target.arm-unknown-linux-musleabihf.musl-root",
124 "arm-unknown-linux-musleabihf install directory")
125 v("musl-root-armv5te", "target.armv5te-unknown-linux-musleabi.musl-root",
126 "armv5te-unknown-linux-musleabi install directory")
127 v("musl-root-armv7", "target.armv7-unknown-linux-musleabi.musl-root",
128 "armv7-unknown-linux-musleabi install directory")
129 v("musl-root-armv7hf", "target.armv7-unknown-linux-musleabihf.musl-root",
130 "armv7-unknown-linux-musleabihf install directory")
131 v("musl-root-aarch64", "target.aarch64-unknown-linux-musl.musl-root",
132 "aarch64-unknown-linux-musl install directory")
133 v("musl-root-mips", "target.mips-unknown-linux-musl.musl-root",
134 "mips-unknown-linux-musl install directory")
135 v("musl-root-mipsel", "target.mipsel-unknown-linux-musl.musl-root",
136 "mipsel-unknown-linux-musl install directory")
137 v("qemu-armhf-rootfs", "target.arm-unknown-linux-gnueabihf.qemu-rootfs",
138 "rootfs in qemu testing, you probably don't want to use this")
139 v("qemu-aarch64-rootfs", "target.aarch64-unknown-linux-gnu.qemu-rootfs",
140 "rootfs in qemu testing, you probably don't want to use this")
141 v("experimental-targets", "llvm.experimental-targets",
142 "experimental LLVM targets to build")
143 v("release-channel", "rust.channel", "the name of the release channel to build")
145 # Used on systems where "cc" is unavailable
146 v("default-linker", "rust.default-linker", "the default linker")
148 # Many of these are saved below during the "writing configuration" step
149 # (others are conditionally saved).
150 o("manage-submodules", "build.submodules", "let the build manage the git submodules")
151 o("full-bootstrap", "build.full-bootstrap", "build three compilers instead of two")
152 o("extended", "build.extended", "build an extended rust tool set")
154 v("tools", None, "List of extended tools will be installed")
155 v("build", "build.build", "GNUs ./configure syntax LLVM build triple")
156 v("host", None, "GNUs ./configure syntax LLVM host triples")
157 v("target", None, "GNUs ./configure syntax LLVM target triples")
159 v("set", None, "set arbitrary key/value pairs in TOML configuration")
163 print("configure: " + msg)
167 print("configure: error: " + msg)
171 if '--help' in sys.argv or '-h' in sys.argv:
172 print('Usage: ./configure [options]')
175 for option in options:
176 if 'android' in option.name:
177 # no one needs to know about these obscure options
180 print('\t{:30} {}'.format('--{}=VAL'.format(option.name), option.desc))
182 print('\t{:30} {}'.format('--enable-{}'.format(option.name), option.desc))
184 print('This configure script is a thin configuration shim over the true')
185 print('configuration system, `config.toml`. You can explore the comments')
186 print('in `config.toml.example` next to this configure script to see')
187 print('more information about what each option is. Additionally you can')
188 print('pass `--set` as an argument to set arbitrary key/value pairs')
189 print('in the TOML configuration if desired')
191 print('Also note that all options which take `--enable` can similarly')
192 print('be passed with `--disable-foo` to forcibly disable the option')
195 # Parse all command line arguments into one of these three lists, handling
196 # boolean and value-based options separately
201 p("processing command line")
203 while i < len(sys.argv):
206 if not arg.startswith('--'):
207 unknown_args.append(arg)
211 for option in options:
214 keyval = arg[2:].split('=', 1)
216 if option.name != key:
221 elif i < len(sys.argv):
225 need_value_args.append(arg)
228 if arg[2:] == 'enable-' + option.name:
230 elif arg[2:] == 'disable-' + option.name:
236 if option.name not in known_args:
237 known_args[option.name] = []
238 known_args[option.name].append((option, value))
242 unknown_args.append(arg)
245 # Note: here and a few other places, we use [-1] to apply the *last* value
246 # passed. But if option-checking is enabled, then the known_args loop will
247 # also assert that options are only passed once.
248 option_checking = ('option-checking' not in known_args
249 or known_args['option-checking'][-1][1])
251 if len(unknown_args) > 0:
252 err("Option '" + unknown_args[0] + "' is not recognized")
253 if len(need_value_args) > 0:
254 err("Option '{0}' needs a value ({0}=val)".format(need_value_args[0]))
256 # Parse all known arguments into a configuration structure that reflects the
257 # TOML we're going to write out
262 if 'build' in known_args:
263 return known_args['build'][-1][1]
264 return bootstrap.default_build_triple()
268 s = "{:20} := {}".format(key, value)
275 parts = key.split('.')
276 for i, part in enumerate(parts):
277 if i == len(parts) - 1:
285 for key in known_args:
286 # The `set` option is special and can be passed a bunch of times
288 for option, value in known_args[key]:
289 keyval = value.split('=', 1)
290 if len(keyval) == 1 or keyval[1] == "true":
292 elif keyval[1] == "false":
296 set(keyval[0], value)
299 # Ensure each option is only passed once
300 arr = known_args[key]
301 if option_checking and len(arr) > 1:
302 err("Option '{}' provided more than once".format(key))
303 option, value = arr[-1]
305 # If we have a clear avenue to set our value in rustbuild, do so
306 if option.rustbuild is not None:
307 set(option.rustbuild, value)
310 # Otherwise we're a "special" option and need some extra handling, so do
312 if option.name == 'sccache':
313 set('llvm.ccache', 'sccache')
314 elif option.name == 'local-rust':
315 for path in os.environ['PATH'].split(os.pathsep):
316 if os.path.exists(path + '/rustc'):
317 set('build.rustc', path + '/rustc')
319 for path in os.environ['PATH'].split(os.pathsep):
320 if os.path.exists(path + '/cargo'):
321 set('build.cargo', path + '/cargo')
323 elif option.name == 'local-rust-root':
324 set('build.rustc', value + '/bin/rustc')
325 set('build.cargo', value + '/bin/cargo')
326 elif option.name == 'llvm-root':
327 set('target.{}.llvm-config'.format(build()), value + '/bin/llvm-config')
328 elif option.name == 'llvm-config':
329 set('target.{}.llvm-config'.format(build()), value)
330 elif option.name == 'llvm-filecheck':
331 set('target.{}.llvm-filecheck'.format(build()), value)
332 elif option.name == 'tools':
333 set('build.tools', value.split(','))
334 elif option.name == 'host':
335 set('build.host', value.split(','))
336 elif option.name == 'target':
337 set('build.target', value.split(','))
338 elif option.name == 'emscripten':
339 set('rust.codegen-backends', ['llvm', 'emscripten'])
340 elif option.name == 'full-tools':
341 set('rust.codegen-backends', ['llvm', 'emscripten'])
342 set('rust.lld', True)
343 set('rust.llvm-tools', True)
344 set('build.extended', True)
345 elif option.name == 'option-checking':
346 # this was handled above
349 raise RuntimeError("unhandled option {}".format(option.name))
351 set('build.configure-args', sys.argv[1:])
353 # "Parse" the `config.toml.example` file into the various sections, and we'll
354 # use this as a template of a `config.toml` to write out which preserves
355 # all the various comments and whatnot.
357 # Note that the `target` section is handled separately as we'll duplicate it
358 # per configured target, so there's a bit of special handling for that here.
362 section_order = [None]
365 for line in open(rust_dir + '/config.toml.example').read().split("\n"):
366 if line.startswith('['):
367 cur_section = line[1:-1]
368 if cur_section.startswith('target'):
369 cur_section = 'target'
370 elif '.' in cur_section:
371 raise RuntimeError("don't know how to deal with section: {}".format(cur_section))
372 sections[cur_section] = [line]
373 section_order.append(cur_section)
375 sections[cur_section].append(line)
377 # Fill out the `targets` array by giving all configured targets a copy of the
378 # `target` section we just loaded from the example config
379 configured_targets = [build()]
380 if 'build' in config:
381 if 'host' in config['build']:
382 configured_targets += config['build']['host']
383 if 'target' in config['build']:
384 configured_targets += config['build']['target']
385 if 'target' in config:
386 for target in config['target']:
387 configured_targets.append(target)
388 for target in configured_targets:
389 targets[target] = sections['target'][:]
390 targets[target][0] = targets[target][0].replace("x86_64-unknown-linux-gnu", target)
393 def is_number(value):
400 # Here we walk through the constructed configuration we have from the parsed
401 # command line arguments. We then apply each piece of configuration by
402 # basically just doing a `sed` to change the various configuration line to what
403 # we've got configure.
405 if isinstance(value, bool):
410 elif isinstance(value, list):
411 return '[' + ', '.join(map(to_toml, value)) + ']'
412 elif isinstance(value, str):
413 # Don't put quotes around numeric values
417 return "'" + value + "'"
419 raise RuntimeError('no toml')
422 def configure_section(lines, config):
426 for i, line in enumerate(lines):
427 if not line.startswith('#' + key + ' = '):
430 lines[i] = "{} = {}".format(key, to_toml(value))
433 raise RuntimeError("failed to find config line for {}".format(key))
436 for section_key in config:
437 section_config = config[section_key]
438 if section_key not in sections:
439 raise RuntimeError("config key {} not in sections".format(section_key))
441 if section_key == 'target':
442 for target in section_config:
443 configure_section(targets[target], section_config[target])
445 configure_section(sections[section_key], section_config)
447 # Now that we've built up our `config.toml`, write it all out in the same
448 # order that we read it in.
450 p("writing `config.toml` in current directory")
451 with bootstrap.output('config.toml') as f:
452 for section in section_order:
453 if section == 'target':
454 for target in targets:
455 for line in targets[target]:
458 for line in sections[section]:
461 with bootstrap.output('Makefile') as f:
462 contents = os.path.join(rust_dir, 'src', 'bootstrap', 'mk', 'Makefile.in')
463 contents = open(contents).read()
464 contents = contents.replace("$(CFG_SRC_DIR)", rust_dir + '/')
465 contents = contents.replace("$(CFG_PYTHON)", sys.executable)
469 p("run `python {}/x.py --help`".format(rust_dir))