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
16 rust_dir = os.path.dirname(os.path.abspath(__file__))
17 rust_dir = os.path.dirname(rust_dir)
18 rust_dir = os.path.dirname(rust_dir)
19 sys.path.append(os.path.join(rust_dir, "src", "bootstrap"))
23 def __init__(self, name, rustbuild, desc, value):
25 self.rustbuild = rustbuild
32 options.append(Option(*args, value=False))
35 options.append(Option(*args, value=True))
37 o("debug", "rust.debug", "debug mode; disables optimization unless `--enable-optimize` given")
38 o("docs", "build.docs", "build standard library documentation")
39 o("compiler-docs", "build.compiler-docs", "build compiler documentation")
40 o("optimize-tests", "rust.optimize-tests", "build tests with optimizations")
41 o("test-miri", "rust.test-miri", "run miri's test suite")
42 o("debuginfo-tests", "rust.debuginfo-tests", "build tests with debugger metadata")
43 o("quiet-tests", "rust.quiet-tests", "enable quieter output when running tests")
44 o("ccache", "llvm.ccache", "invoke gcc/clang via ccache to reuse object files between builds")
45 o("sccache", None, "invoke gcc/clang via sccache to reuse object files between builds")
46 o("local-rust", None, "use an installed rustc rather than downloading a snapshot")
47 v("local-rust-root", None, "set prefix for local rust binary")
48 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")
49 o("llvm-static-stdcpp", "llvm.static-libstdcpp", "statically link to libstdc++ for LLVM")
50 o("llvm-link-shared", "llvm.link-shared", "prefer shared linking to LLVM (llvm-config --link-shared)")
51 o("rpath", "rust.rpath", "build rpaths into rustc itself")
52 o("llvm-version-check", "llvm.version-check", "check if the LLVM version is supported, build anyway")
53 o("codegen-tests", "rust.codegen-tests", "run the src/test/codegen tests")
54 o("option-checking", None, "complain about unrecognized options in this configure script")
55 o("ninja", "llvm.ninja", "build LLVM using the Ninja generator (for MSVC, requires building in the correct environment)")
56 o("locked-deps", "build.locked-deps", "force Cargo.lock to be up to date")
57 o("vendor", "build.vendor", "enable usage of vendored Rust crates")
58 o("sanitizers", "build.sanitizers", "build the sanitizer runtimes (asan, lsan, msan, tsan)")
59 o("dist-src", "rust.dist-src", "when building tarballs enables building a source tarball")
60 o("cargo-openssl-static", "build.openssl-static", "static openssl in cargo")
61 o("profiler", "build.profiler", "build the profiler runtime")
63 # Optimization and debugging options. These may be overridden by the release
65 o("optimize", "rust.optimize", "build optimized rust code")
66 o("optimize-llvm", "llvm.optimize", "build optimized LLVM")
67 o("llvm-assertions", "llvm.assertions", "build LLVM with assertions")
68 o("debug-assertions", "rust.debug-assertions", "build with debugging assertions")
69 o("llvm-release-debuginfo", "llvm.release-debuginfo", "build LLVM with debugger metadata")
70 o("debuginfo", "rust.debuginfo", "build with debugger metadata")
71 o("debuginfo-lines", "rust.debuginfo-lines", "build with line number debugger metadata")
72 o("debuginfo-only-std", "rust.debuginfo-only-std", "build only libstd with debugging information")
73 o("debug-jemalloc", "rust.debug-jemalloc", "build jemalloc with --enable-debug --enable-fill")
75 v("prefix", "install.prefix", "set installation prefix")
76 v("localstatedir", "install.localstatedir", "local state directory")
77 v("datadir", "install.datadir", "install data")
78 v("sysconfdir", "install.sysconfdir", "install system configuration files")
79 v("infodir", "install.infodir", "install additional info")
80 v("libdir", "install.libdir", "install libraries")
81 v("mandir", "install.mandir", "install man pages in PATH")
82 v("docdir", "install.docdir", "install documentation in PATH")
83 v("bindir", "install.bindir", "install binaries")
85 v("llvm-root", None, "set LLVM root")
86 v("python", "build.python", "set path to python")
87 v("jemalloc-root", None, "set directory where libjemalloc_pic.a is located")
88 v("android-cross-path", "target.arm-linux-androideabi.android-ndk",
89 "Android NDK standalone path (deprecated)")
90 v("i686-linux-android-ndk", "target.i686-linux-android.android-ndk",
91 "i686-linux-android NDK standalone path")
92 v("arm-linux-androideabi-ndk", "target.arm-linux-androideabi.android-ndk",
93 "arm-linux-androideabi NDK standalone path")
94 v("armv7-linux-androideabi-ndk", "target.armv7-linux-androideabi.android-ndk",
95 "armv7-linux-androideabi NDK standalone path")
96 v("aarch64-linux-android-ndk", "target.aarch64-linux-android.android-ndk",
97 "aarch64-linux-android NDK standalone path")
98 v("x86_64-linux-android-ndk", "target.x86_64-linux-android.android-ndk",
99 "x86_64-linux-android NDK standalone path")
100 v("musl-root", "target.x86_64-unknown-linux-musl.musl-root",
101 "MUSL root installation directory (deprecated)")
102 v("musl-root-x86_64", "target.x86_64-unknown-linux-musl.musl-root",
103 "x86_64-unknown-linux-musl install directory")
104 v("musl-root-i686", "target.i686-unknown-linux-musl.musl-root",
105 "i686-unknown-linux-musl install directory")
106 v("musl-root-arm", "target.arm-unknown-linux-musleabi.musl-root",
107 "arm-unknown-linux-musleabi install directory")
108 v("musl-root-armhf", "target.arm-unknown-linux-musleabihf.musl-root",
109 "arm-unknown-linux-musleabihf install directory")
110 v("musl-root-armv7", "target.armv7-unknown-linux-musleabihf.musl-root",
111 "armv7-unknown-linux-musleabihf install directory")
112 v("musl-root-aarch64", "target.aarch64-unknown-linux-musl.musl-root",
113 "aarch64-unknown-linux-musl install directory")
114 v("qemu-armhf-rootfs", "target.arm-unknown-linux-gnueabihf.qemu-rootfs",
115 "rootfs in qemu testing, you probably don't want to use this")
116 v("qemu-aarch64-rootfs", "target.aarch64-unknown-linux-gnu.qemu-rootfs",
117 "rootfs in qemu testing, you probably don't want to use this")
118 v("experimental-targets", "llvm.experimental-targets",
119 "experimental LLVM targets to build")
120 v("release-channel", "rust.channel", "the name of the release channel to build")
122 # Used on systems where "cc" and "ar" are unavailable
123 v("default-linker", "rust.default-linker", "the default linker")
124 v("default-ar", "rust.default-ar", "the default ar")
126 # Many of these are saved below during the "writing configuration" step
127 # (others are conditionally saved).
128 o("manage-submodules", "build.submodules", "let the build manage the git submodules")
129 o("jemalloc", "rust.use-jemalloc", "build liballoc with jemalloc")
130 o("full-bootstrap", "build.full-bootstrap", "build three compilers instead of two")
131 o("extended", "build.extended", "build an extended rust tool set")
133 v("build", "build.build", "GNUs ./configure syntax LLVM build triple")
134 v("host", None, "GNUs ./configure syntax LLVM host triples")
135 v("target", None, "GNUs ./configure syntax LLVM target triples")
137 v("set", None, "set arbitrary key/value pairs in TOML configuration")
140 print("configure: " + msg)
143 print("configure: error: " + msg)
146 if '--help' in sys.argv or '-h' in sys.argv:
147 print('Usage: ./configure [options]')
150 for option in options:
151 if 'android' in option.name:
152 # no one needs to know about these obscure options
155 print('\t{:30} {}'.format('--{}=VAL'.format(option.name), option.desc))
157 print('\t{:30} {}'.format('--enable-{}'.format(option.name), option.desc))
159 print('This configure script is a thin configuration shim over the true')
160 print('configuration system, `config.toml`. You can explore the comments')
161 print('in `config.toml.example` next to this configure script to see')
162 print('more information about what each option is. Additionally you can')
163 print('pass `--set` as an argument to set arbitrary key/value pairs')
164 print('in the TOML configuration if desired')
166 print('Also note that all options which take `--enable` can similarly')
167 print('be passed with `--disable-foo` to forcibly disable the option')
170 # Parse all command line arguments into one of these three lists, handling
171 # boolean and value-based options separately
176 p("processing command line")
178 while i < len(sys.argv):
181 if not arg.startswith('--'):
182 unknown_args.append(arg)
186 for option in options:
189 keyval = arg[2:].split('=', 1)
191 if option.name != key:
196 elif i < len(sys.argv):
200 need_value_args.append(arg)
203 if arg[2:] == 'enable-' + option.name:
205 elif arg[2:] == 'disable-' + option.name:
211 if not option.name in known_args:
212 known_args[option.name] = []
213 known_args[option.name].append((option, value))
217 unknown_args.append(arg)
220 if 'option-checking' not in known_args or known_args['option-checking'][1]:
221 if len(unknown_args) > 0:
222 err("Option '" + unknown_args[0] + "' is not recognized")
223 if len(need_value_args) > 0:
224 err("Option '{0}' needs a value ({0}=val)".format(need_value_args[0]))
226 # Parse all known arguments into a configuration structure that reflects the
227 # TOML we're going to write out
231 if 'build' in known_args:
232 return known_args['build'][0][1]
233 return bootstrap.default_build_triple()
236 s = "{:20} := {}".format(key, value)
243 parts = key.split('.')
244 for i, part in enumerate(parts):
245 if i == len(parts) - 1:
252 for key in known_args:
253 # The `set` option is special and can be passed a bunch of times
255 for option, value in known_args[key]:
256 keyval = value.split('=', 1)
257 if len(keyval) == 1 or keyval[1] == "true":
259 elif keyval[1] == "false":
263 set(keyval[0], value)
266 # Ensure each option is only passed once
267 arr = known_args[key]
269 err("Option '{}' provided more than once".format(key))
270 option, value = arr[0]
272 # If we have a clear avenue to set our value in rustbuild, do so
273 if option.rustbuild is not None:
274 set(option.rustbuild, value)
277 # Otherwise we're a "special" option and need some extra handling, so do
279 if option.name == 'sccache':
280 set('llvm.ccache', 'sccache')
281 elif option.name == 'local-rust':
282 for path in os.environ['PATH'].split(os.pathsep):
283 if os.path.exists(path + '/rustc'):
284 set('build.rustc', path + '/rustc')
286 for path in os.environ['PATH'].split(os.pathsep):
287 if os.path.exists(path + '/cargo'):
288 set('build.cargo', path + '/cargo')
290 elif option.name == 'local-rust-root':
291 set('build.rustc', value + '/bin/rustc')
292 set('build.cargo', value + '/bin/cargo')
293 elif option.name == 'llvm-root':
294 set('target.{}.llvm-config'.format(build()), value + '/bin/llvm-config')
295 elif option.name == 'jemalloc-root':
296 set('target.{}.jemalloc'.format(build()), value + '/libjemalloc_pic.a')
297 elif option.name == 'host':
298 set('build.host', value.split(','))
299 elif option.name == 'target':
300 set('build.target', value.split(','))
301 elif option.name == 'option-checking':
302 # this was handled above
305 raise RuntimeError("unhandled option {}".format(option.name))
307 set('build.configure-args', sys.argv[1:])
309 # "Parse" the `config.toml.example` file into the various sections, and we'll
310 # use this as a template of a `config.toml` to write out which preserves
311 # all the various comments and whatnot.
313 # Note that the `target` section is handled separately as we'll duplicate it
314 # per configure dtarget, so there's a bit of special handling for that here.
318 section_order = [None]
321 for line in open(rust_dir + '/config.toml.example').read().split("\n"):
322 if line.startswith('['):
323 cur_section = line[1:-1]
324 if cur_section.startswith('target'):
325 cur_section = 'target'
326 elif '.' in cur_section:
327 raise RuntimeError("don't know how to deal with section: {}".format(cur_section))
328 sections[cur_section] = [line]
329 section_order.append(cur_section)
331 sections[cur_section].append(line)
333 # Fill out the `targets` array by giving all configured targets a copy of the
334 # `target` section we just loaded from the example config
335 configured_targets = [build()]
336 if 'build' in config:
337 if 'host' in config['build']:
338 configured_targets += config['build']['host']
339 if 'target' in config['build']:
340 configured_targets += config['build']['target']
341 if 'target' in config:
342 for target in config['target']:
343 configured_targets.append(target)
344 for target in configured_targets:
345 targets[target] = sections['target'][:]
346 targets[target][0] = targets[target][0].replace("x86_64-unknown-linux-gnu", target)
348 # Here we walk through the constructed configuration we have from the parsed
349 # command line arguemnts. We then apply each piece of configuration by
350 # basically just doing a `sed` to change the various configuration line to what
351 # we've got configure.
353 if isinstance(value, bool):
358 elif isinstance(value, list):
359 return '[' + ', '.join(map(to_toml, value)) + ']'
360 elif isinstance(value, str):
361 return "'" + value + "'"
365 def configure_section(lines, config):
369 for i, line in enumerate(lines):
370 if not line.startswith('#' + key + ' = '):
373 lines[i] = "{} = {}".format(key, to_toml(value))
376 raise RuntimeError("failed to find config line for {}".format(key))
378 for section_key in config:
379 section_config = config[section_key]
380 if not section_key in sections:
381 raise RuntimeError("config key {} not in sections".format(section_key))
383 if section_key == 'target':
384 for target in section_config:
385 configure_section(targets[target], section_config[target])
387 configure_section(sections[section_key], section_config)
389 # Now that we've built up our `config.toml`, write it all out in the same
390 # order that we read it in.
392 p("writing `config.toml` in current directory")
393 with open('config.toml', 'w') as f:
394 for section in section_order:
395 if section == 'target':
396 for target in targets:
397 for line in targets[target]:
400 for line in sections[section]:
403 with open('Makefile', 'w') as f:
404 contents = os.path.join(rust_dir, 'src', 'bootstrap', 'mk', 'Makefile.in')
405 contents = open(contents).read()
406 contents = contents.replace("$(CFG_SRC_DIR)", rust_dir + '/')
407 contents = contents.replace("$(CFG_PYTHON)", sys.executable)
410 # Finally, clean up with a bit of a help message
411 relpath = os.path.dirname(__file__)
416 p("run `python {}/x.py --help`".format(relpath))