2 # Copyright 2017 The Rust Project Developers. See the COPYRIGHT
3 # file at the top-level directory of this distribution and at
4 # http://rust-lang.org/COPYRIGHT.
6 # Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
7 # http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
8 # <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
9 # option. This file may not be copied, modified, or distributed
10 # except according to those terms.
12 # ignore-tidy-linelength
14 from __future__ import absolute_import, division, print_function
17 rust_dir = os.path.dirname(os.path.abspath(__file__))
18 rust_dir = os.path.dirname(rust_dir)
19 rust_dir = os.path.dirname(rust_dir)
20 sys.path.append(os.path.join(rust_dir, "src", "bootstrap"))
25 def __init__(self, name, rustbuild, desc, value):
27 self.rustbuild = rustbuild
36 options.append(Option(*args, value=False))
40 options.append(Option(*args, value=True))
43 o("debug", "rust.debug", "debug mode; disables optimization unless `--enable-optimize` given")
44 o("docs", "build.docs", "build standard library documentation")
45 o("compiler-docs", "build.compiler-docs", "build compiler documentation")
46 o("optimize-tests", "rust.optimize-tests", "build tests with optimizations")
47 o("experimental-parallel-queries", "rust.experimental-parallel-queries", "build rustc with experimental parallelization")
48 o("test-miri", "rust.test-miri", "run miri's test suite")
49 o("debuginfo-tests", "rust.debuginfo-tests", "build tests with debugger metadata")
50 o("verbose-tests", "rust.verbose-tests", "enable verbose output when running tests")
51 o("ccache", "llvm.ccache", "invoke gcc/clang via ccache to reuse object files between builds")
52 o("sccache", None, "invoke gcc/clang via sccache to reuse object files between builds")
53 o("local-rust", None, "use an installed rustc rather than downloading a snapshot")
54 v("local-rust-root", None, "set prefix for local rust binary")
55 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")
56 o("llvm-static-stdcpp", "llvm.static-libstdcpp", "statically link to libstdc++ for LLVM")
57 o("llvm-link-shared", "llvm.link-shared", "prefer shared linking to LLVM (llvm-config --link-shared)")
58 o("rpath", "rust.rpath", "build rpaths into rustc itself")
59 o("llvm-version-check", "llvm.version-check", "check if the LLVM version is supported, build anyway")
60 o("codegen-tests", "rust.codegen-tests", "run the src/test/codegen tests")
61 o("option-checking", None, "complain about unrecognized options in this configure script")
62 o("ninja", "llvm.ninja", "build LLVM using the Ninja generator (for MSVC, requires building in the correct environment)")
63 o("locked-deps", "build.locked-deps", "force Cargo.lock to be up to date")
64 o("vendor", "build.vendor", "enable usage of vendored Rust crates")
65 o("sanitizers", "build.sanitizers", "build the sanitizer runtimes (asan, lsan, msan, tsan)")
66 o("dist-src", "rust.dist-src", "when building tarballs enables building a source tarball")
67 o("cargo-openssl-static", "build.openssl-static", "static openssl in cargo")
68 o("profiler", "build.profiler", "build the profiler runtime")
69 o("emscripten", None, "compile the emscripten backend as well as LLVM")
70 o("full-tools", None, "enable all tools")
71 o("lldb", "rust.lldb", "build lldb")
73 # Optimization and debugging options. These may be overridden by the release
75 o("optimize", "rust.optimize", "build optimized rust code")
76 o("optimize-llvm", "llvm.optimize", "build optimized LLVM")
77 o("llvm-assertions", "llvm.assertions", "build LLVM with assertions")
78 o("debug-assertions", "rust.debug-assertions", "build with debugging assertions")
79 o("llvm-release-debuginfo", "llvm.release-debuginfo", "build LLVM with debugger metadata")
80 o("debuginfo", "rust.debuginfo", "build with debugger metadata")
81 o("debuginfo-lines", "rust.debuginfo-lines", "build with line number debugger metadata")
82 o("debuginfo-only-std", "rust.debuginfo-only-std", "build only libstd with debugging information")
83 o("debuginfo-tools", "rust.debuginfo-tools", "build extended tools with debugging information")
84 o("debug-jemalloc", "rust.debug-jemalloc", "build jemalloc with --enable-debug --enable-fill")
85 v("save-toolstates", "rust.save-toolstates", "save build and test status of external tools into this file")
87 v("prefix", "install.prefix", "set installation prefix")
88 v("localstatedir", "install.localstatedir", "local state directory")
89 v("datadir", "install.datadir", "install data")
90 v("sysconfdir", "install.sysconfdir", "install system configuration files")
91 v("infodir", "install.infodir", "install additional info")
92 v("libdir", "install.libdir", "install libraries")
93 v("mandir", "install.mandir", "install man pages in PATH")
94 v("docdir", "install.docdir", "install documentation in PATH")
95 v("bindir", "install.bindir", "install binaries")
97 v("llvm-root", None, "set LLVM root")
98 v("python", "build.python", "set path to python")
99 v("jemalloc-root", None, "set directory where libjemalloc_pic.a is located")
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("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-musleabihf.musl-root",
127 "armv7-unknown-linux-musleabihf install directory")
128 v("musl-root-aarch64", "target.aarch64-unknown-linux-musl.musl-root",
129 "aarch64-unknown-linux-musl install directory")
130 v("musl-root-mips", "target.mips-unknown-linux-musl.musl-root",
131 "mips-unknown-linux-musl install directory")
132 v("musl-root-mipsel", "target.mipsel-unknown-linux-musl.musl-root",
133 "mipsel-unknown-linux-musl install directory")
134 v("qemu-armhf-rootfs", "target.arm-unknown-linux-gnueabihf.qemu-rootfs",
135 "rootfs in qemu testing, you probably don't want to use this")
136 v("qemu-aarch64-rootfs", "target.aarch64-unknown-linux-gnu.qemu-rootfs",
137 "rootfs in qemu testing, you probably don't want to use this")
138 v("experimental-targets", "llvm.experimental-targets",
139 "experimental LLVM targets to build")
140 v("release-channel", "rust.channel", "the name of the release channel to build")
142 # Used on systems where "cc" is unavailable
143 v("default-linker", "rust.default-linker", "the default linker")
145 # Many of these are saved below during the "writing configuration" step
146 # (others are conditionally saved).
147 o("manage-submodules", "build.submodules", "let the build manage the git submodules")
148 o("jemalloc", "rust.use-jemalloc", "build liballoc with jemalloc")
149 o("full-bootstrap", "build.full-bootstrap", "build three compilers instead of two")
150 o("extended", "build.extended", "build an extended rust tool set")
152 v("tools", None, "List of extended tools will be installed")
153 v("build", "build.build", "GNUs ./configure syntax LLVM build triple")
154 v("host", None, "GNUs ./configure syntax LLVM host triples")
155 v("target", None, "GNUs ./configure syntax LLVM target triples")
157 v("set", None, "set arbitrary key/value pairs in TOML configuration")
161 print("configure: " + msg)
165 print("configure: error: " + msg)
169 if '--help' in sys.argv or '-h' in sys.argv:
170 print('Usage: ./configure [options]')
173 for option in options:
174 if 'android' in option.name:
175 # no one needs to know about these obscure options
178 print('\t{:30} {}'.format('--{}=VAL'.format(option.name), option.desc))
180 print('\t{:30} {}'.format('--enable-{}'.format(option.name), option.desc))
182 print('This configure script is a thin configuration shim over the true')
183 print('configuration system, `config.toml`. You can explore the comments')
184 print('in `config.toml.example` next to this configure script to see')
185 print('more information about what each option is. Additionally you can')
186 print('pass `--set` as an argument to set arbitrary key/value pairs')
187 print('in the TOML configuration if desired')
189 print('Also note that all options which take `--enable` can similarly')
190 print('be passed with `--disable-foo` to forcibly disable the option')
193 # Parse all command line arguments into one of these three lists, handling
194 # boolean and value-based options separately
199 p("processing command line")
201 while i < len(sys.argv):
204 if not arg.startswith('--'):
205 unknown_args.append(arg)
209 for option in options:
212 keyval = arg[2:].split('=', 1)
214 if option.name != key:
219 elif i < len(sys.argv):
223 need_value_args.append(arg)
226 if arg[2:] == 'enable-' + option.name:
228 elif arg[2:] == 'disable-' + option.name:
234 if option.name not in known_args:
235 known_args[option.name] = []
236 known_args[option.name].append((option, value))
240 unknown_args.append(arg)
243 # Note: here and a few other places, we use [-1] to apply the *last* value
244 # passed. But if option-checking is enabled, then the known_args loop will
245 # also assert that options are only passed once.
246 option_checking = ('option-checking' not in known_args
247 or known_args['option-checking'][-1][1])
249 if len(unknown_args) > 0:
250 err("Option '" + unknown_args[0] + "' is not recognized")
251 if len(need_value_args) > 0:
252 err("Option '{0}' needs a value ({0}=val)".format(need_value_args[0]))
254 # Parse all known arguments into a configuration structure that reflects the
255 # TOML we're going to write out
260 if 'build' in known_args:
261 return known_args['build'][-1][1]
262 return bootstrap.default_build_triple()
266 s = "{:20} := {}".format(key, value)
273 parts = key.split('.')
274 for i, part in enumerate(parts):
275 if i == len(parts) - 1:
283 for key in known_args:
284 # The `set` option is special and can be passed a bunch of times
286 for option, value in known_args[key]:
287 keyval = value.split('=', 1)
288 if len(keyval) == 1 or keyval[1] == "true":
290 elif keyval[1] == "false":
294 set(keyval[0], value)
297 # Ensure each option is only passed once
298 arr = known_args[key]
299 if option_checking and len(arr) > 1:
300 err("Option '{}' provided more than once".format(key))
301 option, value = arr[-1]
303 # If we have a clear avenue to set our value in rustbuild, do so
304 if option.rustbuild is not None:
305 set(option.rustbuild, value)
308 # Otherwise we're a "special" option and need some extra handling, so do
310 if option.name == 'sccache':
311 set('llvm.ccache', 'sccache')
312 elif option.name == 'local-rust':
313 for path in os.environ['PATH'].split(os.pathsep):
314 if os.path.exists(path + '/rustc'):
315 set('build.rustc', path + '/rustc')
317 for path in os.environ['PATH'].split(os.pathsep):
318 if os.path.exists(path + '/cargo'):
319 set('build.cargo', path + '/cargo')
321 elif option.name == 'local-rust-root':
322 set('build.rustc', value + '/bin/rustc')
323 set('build.cargo', value + '/bin/cargo')
324 elif option.name == 'llvm-root':
325 set('target.{}.llvm-config'.format(build()), value + '/bin/llvm-config')
326 elif option.name == 'jemalloc-root':
327 set('target.{}.jemalloc'.format(build()), value + '/libjemalloc_pic.a')
328 elif option.name == 'tools':
329 set('build.tools', value.split(','))
330 elif option.name == 'host':
331 set('build.host', value.split(','))
332 elif option.name == 'target':
333 set('build.target', value.split(','))
334 elif option.name == 'emscripten':
335 set('rust.codegen-backends', ['llvm', 'emscripten'])
336 elif option.name == 'full-tools':
337 set('rust.codegen-backends', ['llvm', 'emscripten'])
338 set('rust.lld', True)
339 set('rust.llvm-tools', True)
340 set('build.extended', True)
341 elif option.name == 'option-checking':
342 # this was handled above
345 raise RuntimeError("unhandled option {}".format(option.name))
347 set('build.configure-args', sys.argv[1:])
349 # "Parse" the `config.toml.example` file into the various sections, and we'll
350 # use this as a template of a `config.toml` to write out which preserves
351 # all the various comments and whatnot.
353 # Note that the `target` section is handled separately as we'll duplicate it
354 # per configured target, so there's a bit of special handling for that here.
358 section_order = [None]
361 for line in open(rust_dir + '/config.toml.example').read().split("\n"):
362 if line.startswith('['):
363 cur_section = line[1:-1]
364 if cur_section.startswith('target'):
365 cur_section = 'target'
366 elif '.' in cur_section:
367 raise RuntimeError("don't know how to deal with section: {}".format(cur_section))
368 sections[cur_section] = [line]
369 section_order.append(cur_section)
371 sections[cur_section].append(line)
373 # Fill out the `targets` array by giving all configured targets a copy of the
374 # `target` section we just loaded from the example config
375 configured_targets = [build()]
376 if 'build' in config:
377 if 'host' in config['build']:
378 configured_targets += config['build']['host']
379 if 'target' in config['build']:
380 configured_targets += config['build']['target']
381 if 'target' in config:
382 for target in config['target']:
383 configured_targets.append(target)
384 for target in configured_targets:
385 targets[target] = sections['target'][:]
386 targets[target][0] = targets[target][0].replace("x86_64-unknown-linux-gnu", target)
389 # Here we walk through the constructed configuration we have from the parsed
390 # command line arguments. We then apply each piece of configuration by
391 # basically just doing a `sed` to change the various configuration line to what
392 # we've got configure.
394 if isinstance(value, bool):
399 elif isinstance(value, list):
400 return '[' + ', '.join(map(to_toml, value)) + ']'
401 elif isinstance(value, str):
402 return "'" + value + "'"
404 raise RuntimeError('no toml')
407 def configure_section(lines, config):
411 for i, line in enumerate(lines):
412 if not line.startswith('#' + key + ' = '):
415 lines[i] = "{} = {}".format(key, to_toml(value))
418 raise RuntimeError("failed to find config line for {}".format(key))
421 for section_key in config:
422 section_config = config[section_key]
423 if section_key not in sections:
424 raise RuntimeError("config key {} not in sections".format(section_key))
426 if section_key == 'target':
427 for target in section_config:
428 configure_section(targets[target], section_config[target])
430 configure_section(sections[section_key], section_config)
432 # Now that we've built up our `config.toml`, write it all out in the same
433 # order that we read it in.
435 p("writing `config.toml` in current directory")
436 with bootstrap.output('config.toml') as f:
437 for section in section_order:
438 if section == 'target':
439 for target in targets:
440 for line in targets[target]:
443 for line in sections[section]:
446 with bootstrap.output('Makefile') as f:
447 contents = os.path.join(rust_dir, 'src', 'bootstrap', 'mk', 'Makefile.in')
448 contents = open(contents).read()
449 contents = contents.replace("$(CFG_SRC_DIR)", rust_dir + '/')
450 contents = contents.replace("$(CFG_PYTHON)", sys.executable)
454 p("run `python {}/x.py --help`".format(rust_dir))