12 def cmake_quote_string(value):
14 cmake_quote_string(value) -> str
16 Return a quoted form of the given value that is suitable for use in CMake
20 # Currently, we only handle escaping backslashes.
21 value = value.replace("\\", "\\\\")
25 def cmake_quote_path(value):
27 cmake_quote_path(value) -> str
29 Return a quoted form of the given value that is suitable for use in CMake
33 # CMake has a bug in it's Makefile generator that doesn't properly quote
34 # strings it generates. So instead of using proper quoting, we just use "/"
35 # style paths. Currently, we only handle escaping backslashes.
36 value = value.replace("\\", "/")
40 def mk_quote_string_for_target(value):
42 mk_quote_string_for_target(target_name) -> str
44 Return a quoted form of the given target_name suitable for including in a
45 Makefile as a target name.
48 # The only quoting we currently perform is for ':', to support msys users.
49 return value.replace(":", "\\:")
51 def make_install_dir(path):
53 make_install_dir(path) -> None
55 Create the given directory path for installation, including any parents.
58 # os.makedirs considers it an error to be called with an existent path.
59 if not os.path.exists(path):
64 class LLVMProjectInfo(object):
66 def load_infos_from_path(llvmbuild_source_root):
68 # Load the LLVMBuild file.
69 llvmbuild_path = os.path.join(llvmbuild_source_root + subpath,
71 if not os.path.exists(llvmbuild_path):
72 fatal("missing LLVMBuild.txt file at: %r" % (llvmbuild_path,))
74 # Parse the components from it.
75 common,info_iter = componentinfo.load_from_path(llvmbuild_path,
77 for info in info_iter:
80 # Recurse into the specified subdirectories.
81 for subdir in common.get_list("subdirectories"):
82 for item in recurse(os.path.join(subpath, subdir)):
88 def load_from_path(source_root, llvmbuild_source_root):
90 LLVMProjectInfo.load_infos_from_path(llvmbuild_source_root))
92 return LLVMProjectInfo(source_root, infos)
94 def __init__(self, source_root, component_infos):
95 # Store our simple ivars.
96 self.source_root = source_root
97 self.component_infos = list(component_infos)
98 self.component_info_map = None
99 self.ordered_component_infos = None
101 def validate_components(self):
102 """validate_components() -> None
104 Validate that the project components are well-defined. Among other
105 things, this checks that:
106 - Components have valid references.
107 - Components references do not form cycles.
109 We also construct the map from component names to info, and the
110 topological ordering of components.
113 # Create the component info map and validate that component names are
115 self.component_info_map = {}
116 for ci in self.component_infos:
117 existing = self.component_info_map.get(ci.name)
118 if existing is not None:
119 # We found a duplicate component name, report it and error out.
120 fatal("found duplicate component %r (at %r and %r)" % (
121 ci.name, ci.subpath, existing.subpath))
122 self.component_info_map[ci.name] = ci
124 # Disallow 'all' as a component name, which is a special case.
125 if 'all' in self.component_info_map:
126 fatal("project is not allowed to define 'all' component")
128 # Add the root component.
129 if '$ROOT' in self.component_info_map:
130 fatal("project is not allowed to define $ROOT component")
131 self.component_info_map['$ROOT'] = componentinfo.GroupComponentInfo(
133 self.component_infos.append(self.component_info_map['$ROOT'])
135 # Topologically order the component information according to their
136 # component references.
137 def visit_component_info(ci, current_stack, current_set):
138 # Check for a cycles.
139 if ci in current_set:
140 # We found a cycle, report it and error out.
141 cycle_description = ' -> '.join(
142 '%r (%s)' % (ci.name, relation)
143 for relation,ci in current_stack)
144 fatal("found cycle to %r after following: %s -> %s" % (
145 ci.name, cycle_description, ci.name))
147 # If we have already visited this item, we are done.
148 if ci not in components_to_visit:
151 # Otherwise, mark the component info as visited and traverse.
152 components_to_visit.remove(ci)
154 # Validate the parent reference, which we treat specially.
155 if ci.parent is not None:
156 parent = self.component_info_map.get(ci.parent)
158 fatal("component %r has invalid reference %r (via %r)" % (
159 ci.name, ci.parent, 'parent'))
160 ci.set_parent_instance(parent)
162 for relation,referent_name in ci.get_component_references():
163 # Validate that the reference is ok.
164 referent = self.component_info_map.get(referent_name)
166 fatal("component %r has invalid reference %r (via %r)" % (
167 ci.name, referent_name, relation))
169 # Visit the reference.
170 current_stack.append((relation,ci))
172 visit_component_info(referent, current_stack, current_set)
173 current_set.remove(ci)
176 # Finally, add the component info to the ordered list.
177 self.ordered_component_infos.append(ci)
179 # FIXME: We aren't actually correctly checking for cycles along the
180 # parent edges. Haven't decided how I want to handle this -- I thought
181 # about only checking cycles by relation type. If we do that, it falls
182 # out easily. If we don't, we should special case the check.
184 self.ordered_component_infos = []
185 components_to_visit = sorted(
186 set(self.component_infos),
187 key = lambda c: c.name)
188 while components_to_visit:
189 visit_component_info(iter(components_to_visit).next(), [], set())
191 # Canonicalize children lists.
192 for c in self.ordered_component_infos:
193 c.children.sort(key = lambda c: c.name)
195 def print_tree(self):
196 def visit(node, depth = 0):
197 print '%s%-40s (%s)' % (' '*depth, node.name, node.type_name)
198 for c in node.children:
200 visit(self.component_info_map['$ROOT'])
202 def write_components(self, output_path):
203 # Organize all the components by the directory their LLVMBuild file
206 for ci in self.component_infos:
207 # Ignore the $ROOT component.
208 if ci.parent is None:
211 info_basedir[ci.subpath] = info_basedir.get(ci.subpath, []) + [ci]
213 # Compute the list of subdirectories to scan.
215 for ci in self.component_infos:
216 # Ignore root components.
217 if ci.subpath == '/':
220 # Otherwise, append this subpath to the parent list.
221 parent_path = os.path.dirname(ci.subpath)
222 subpath_subdirs[parent_path] = parent_list = subpath_subdirs.get(
224 parent_list.add(os.path.basename(ci.subpath))
226 # Generate the build files.
227 for subpath, infos in info_basedir.items():
228 # Order the components by name to have a canonical ordering.
229 infos.sort(key = lambda ci: ci.name)
231 # Format the components into llvmbuild fragments.
234 # Add the common fragments.
235 subdirectories = subpath_subdirs.get(subpath)
239 """ % (" ".join(sorted(subdirectories)),)
240 fragments.append(("common", fragment))
242 # Add the component fragments.
243 num_common_fragments = len(fragments)
245 fragment = ci.get_llvmbuild_fragment()
249 name = "component_%d" % (len(fragments) - num_common_fragments)
250 fragments.append((name, fragment))
255 assert subpath.startswith('/')
256 directory_path = os.path.join(output_path, subpath[1:])
258 # Create the directory if it does not already exist.
259 if not os.path.exists(directory_path):
260 os.makedirs(directory_path)
262 # In an effort to preserve comments (which aren't parsed), read in
263 # the original file and extract the comments. We only know how to
264 # associate comments that prefix a section name.
265 f = open(infos[0]._source_path)
269 if ln.startswith(';'):
271 elif ln.startswith('[') and ln.endswith(']\n'):
272 comments_map[ln[1:-2]] = comment_block
277 # Create the LLVMBuild fil[e.
278 file_path = os.path.join(directory_path, 'LLVMBuild.txt')
279 f = open(file_path, "w")
282 header_fmt = ';===- %s %s-*- Conf -*--===;'
283 header_name = '.' + os.path.join(subpath, 'LLVMBuild.txt')
284 header_pad = '-' * (80 - len(header_fmt % (header_name, '')))
285 header_string = header_fmt % (header_name, header_pad)
289 ; The LLVM Compiler Infrastructure
291 ; This file is distributed under the University of Illinois Open Source
292 ; License. See LICENSE.TXT for details.
294 ;===------------------------------------------------------------------------===;
296 ; This is an LLVMBuild description file for the components in this subdirectory.
298 ; For more information on the LLVMBuild system, please see:
300 ; http://llvm.org/docs/LLVMBuild.html
302 ;===------------------------------------------------------------------------===;
305 # Write out each fragment.each component fragment.
306 for name,fragment in fragments:
307 comment = comments_map.get(name)
308 if comment is not None:
310 print >>f, "[%s]" % name
312 if fragment is not fragments[-1][1]:
317 def write_library_table(self, output_path, enabled_optional_components):
318 # Write out the mapping from component names to required libraries.
320 # We do this in topological order so that we know we can append the
321 # dependencies for added library groups.
323 for c in self.ordered_component_infos:
324 # Skip optional components which are not enabled.
325 if c.type_name == 'OptionalLibrary' \
326 and c.name not in enabled_optional_components:
329 # Skip target groups which are not enabled.
330 tg = c.get_parent_target_group()
331 if tg and not tg.enabled:
334 # Only certain components are in the table.
335 if c.type_name not in ('Library', 'OptionalLibrary', \
336 'LibraryGroup', 'TargetGroup'):
339 # Compute the llvm-config "component name". For historical reasons,
340 # this is lowercased based on the library name.
341 llvmconfig_component_name = c.get_llvmconfig_component_name()
343 # Get the library name, or None for LibraryGroups.
344 if c.type_name == 'Library' or c.type_name == 'OptionalLibrary':
345 library_name = c.get_prefixed_library_name()
346 is_installed = c.installed
351 # Get the component names of all the required libraries.
352 required_llvmconfig_component_names = [
353 self.component_info_map[dep].get_llvmconfig_component_name()
354 for dep in c.required_libraries]
356 # Insert the entries for library groups we should add to.
357 for dep in c.add_to_library_groups:
358 entries[dep][2].append(llvmconfig_component_name)
361 entries[c.name] = (llvmconfig_component_name, library_name,
362 required_llvmconfig_component_names,
365 # Convert to a list of entries and sort by name.
366 entries = entries.values()
368 # Create an 'all' pseudo component. We keep the dependency list small by
369 # only listing entries that have no other dependents.
370 root_entries = set(e[0] for e in entries)
371 for _,_,deps,_ in entries:
372 root_entries -= set(deps)
373 entries.append(('all', None, root_entries, True))
377 # Compute the maximum number of required libraries, plus one so there is
379 max_required_libraries = max(len(deps)
380 for _,_,deps,_ in entries) + 1
382 # Write out the library table.
383 make_install_dir(os.path.dirname(output_path))
384 f = open(output_path, 'w')
386 //===- llvm-build generated file --------------------------------*- C++ -*-===//
388 // Component Library Depenedency Table
390 // Automatically generated file, do not edit!
392 //===----------------------------------------------------------------------===//
394 print >>f, 'struct AvailableComponent {'
395 print >>f, ' /// The name of the component.'
396 print >>f, ' const char *Name;'
398 print >>f, ' /// The name of the library for this component (or NULL).'
399 print >>f, ' const char *Library;'
401 print >>f, ' /// Whether the component is installed.'
402 print >>f, ' bool IsInstalled;'
405 /// The list of libraries required when linking this component.'
406 print >>f, ' const char *RequiredLibraries[%d];' % (
407 max_required_libraries)
408 print >>f, '} AvailableComponents[%d] = {' % len(entries)
409 for name,library_name,required_names,is_installed in entries:
410 if library_name is None:
411 library_name_as_cstr = '0'
413 library_name_as_cstr = '"lib%s.a"' % library_name
414 print >>f, ' { "%s", %s, %d, { %s } },' % (
415 name, library_name_as_cstr, is_installed,
416 ', '.join('"%s"' % dep
417 for dep in required_names))
421 def get_required_libraries_for_component(self, ci, traverse_groups = False):
423 get_required_libraries_for_component(component_info) -> iter
425 Given a Library component info descriptor, return an iterator over all
426 of the directly required libraries for linking with this component. If
427 traverse_groups is True, then library and target groups will be
428 traversed to include their required libraries.
431 assert ci.type_name in ('Library', 'LibraryGroup', 'TargetGroup')
433 for name in ci.required_libraries:
434 # Get the dependency info.
435 dep = self.component_info_map[name]
437 # If it is a library, yield it.
438 if dep.type_name == 'Library':
442 # Otherwise if it is a group, yield or traverse depending on what
444 if dep.type_name in ('LibraryGroup', 'TargetGroup'):
445 if not traverse_groups:
449 for res in self.get_required_libraries_for_component(dep, True):
452 def get_fragment_dependencies(self):
454 get_fragment_dependencies() -> iter
456 Compute the list of files (as absolute paths) on which the output
457 fragments depend (i.e., files for which a modification should trigger a
458 rebuild of the fragment).
461 # Construct a list of all the dependencies of the Makefile fragment
462 # itself. These include all the LLVMBuild files themselves, as well as
463 # all of our own sources.
465 # Many components may come from the same file, so we make sure to unique
468 for ci in self.component_infos:
469 p = os.path.join(self.source_root, ci.subpath[1:], 'LLVMBuild.txt')
470 if p not in build_paths:
474 # Gather the list of necessary sources by just finding all loaded
475 # modules that are inside the LLVM source tree.
476 for module in sys.modules.values():
477 # Find the module path.
478 if not hasattr(module, '__file__'):
480 path = getattr(module, '__file__')
484 # Strip off any compiled suffix.
485 if os.path.splitext(path)[1] in ['.pyc', '.pyo', '.pyd']:
488 # If the path exists and is in the source tree, consider it a
490 if (path.startswith(self.source_root) and os.path.exists(path)):
493 def write_cmake_fragment(self, output_path):
495 write_cmake_fragment(output_path) -> None
497 Generate a CMake fragment which includes all of the collated LLVMBuild
498 information in a format that is easily digestible by a CMake. The exact
499 contents of this are closely tied to how the CMake configuration
500 integrates LLVMBuild, see CMakeLists.txt in the top-level.
503 dependencies = list(self.get_fragment_dependencies())
505 # Write out the CMake fragment.
506 make_install_dir(os.path.dirname(output_path))
507 f = open(output_path, 'w')
511 #===-- %s - LLVMBuild Configuration for LLVM %s-*- CMake -*--===#'
512 header_name = os.path.basename(output_path)
513 header_pad = '-' * (80 - len(header_fmt % (header_name, '')))
514 header_string = header_fmt % (header_name, header_pad)
518 # The LLVM Compiler Infrastructure
520 # This file is distributed under the University of Illinois Open Source
521 # License. See LICENSE.TXT for details.
523 #===------------------------------------------------------------------------===#
525 # This file contains the LLVMBuild project information in a format easily
526 # consumed by the CMake based build system.
528 # This file is autogenerated by llvm-build, do not edit!
530 #===------------------------------------------------------------------------===#
533 # Write the dependency information in the best way we can.
535 # LLVMBuild CMake fragment dependencies.
537 # CMake has no builtin way to declare that the configuration depends on
538 # a particular file. However, a side effect of configure_file is to add
539 # said input file to CMake's internal dependency list. So, we use that
540 # and a dummy output file to communicate the dependency information to
543 # FIXME: File a CMake RFE to get a properly supported version of this
545 for dep in dependencies:
547 configure_file(\"%s\"
548 ${CMAKE_CURRENT_BINARY_DIR}/DummyConfigureOutput)""" % (
549 cmake_quote_path(dep),)
551 # Write the properties we use to encode the required library dependency
552 # information in a form CMake can easily use directly.
554 # Explicit library dependency information.
556 # The following property assignments effectively create a map from component
557 # names to required libraries, in a way that is easily accessed from CMake."""
558 for ci in self.ordered_component_infos:
559 # We only write the information for libraries currently.
560 if ci.type_name != 'Library':
564 set_property(GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_%s %s)""" % (
565 ci.get_prefixed_library_name(), " ".join(sorted(
566 dep.get_prefixed_library_name()
567 for dep in self.get_required_libraries_for_component(ci))))
571 def write_make_fragment(self, output_path):
573 write_make_fragment(output_path) -> None
575 Generate a Makefile fragment which includes all of the collated
576 LLVMBuild information in a format that is easily digestible by a
577 Makefile. The exact contents of this are closely tied to how the LLVM
578 Makefiles integrate LLVMBuild, see Makefile.rules in the top-level.
581 dependencies = list(self.get_fragment_dependencies())
583 # Write out the Makefile fragment.
584 make_install_dir(os.path.dirname(output_path))
585 f = open(output_path, 'w')
589 #===-- %s - LLVMBuild Configuration for LLVM %s-*- Makefile -*--===#'
590 header_name = os.path.basename(output_path)
591 header_pad = '-' * (80 - len(header_fmt % (header_name, '')))
592 header_string = header_fmt % (header_name, header_pad)
596 # The LLVM Compiler Infrastructure
598 # This file is distributed under the University of Illinois Open Source
599 # License. See LICENSE.TXT for details.
601 #===------------------------------------------------------------------------===#
603 # This file contains the LLVMBuild project information in a format easily
604 # consumed by the Makefile based build system.
606 # This file is autogenerated by llvm-build, do not edit!
608 #===------------------------------------------------------------------------===#
611 # Write the dependencies for the fragment.
613 # FIXME: Technically, we need to properly quote for Make here.
615 # Clients must explicitly enable LLVMBUILD_INCLUDE_DEPENDENCIES to get
616 # these dependencies. This is a compromise to help improve the
617 # performance of recursive Make systems."""
618 print >>f, 'ifeq ($(LLVMBUILD_INCLUDE_DEPENDENCIES),1)'
619 print >>f, "# The dependencies for this Makefile fragment itself."
620 print >>f, "%s: \\" % (mk_quote_string_for_target(output_path),)
621 for dep in dependencies:
622 print >>f, "\t%s \\" % (dep,)
625 # Generate dummy rules for each of the dependencies, so that things
626 # continue to work correctly if any of those files are moved or removed.
628 # The dummy targets to allow proper regeneration even when files are moved or
630 for dep in dependencies:
631 print >>f, "%s:" % (mk_quote_string_for_target(dep),)
636 def add_magic_target_components(parser, project, opts):
637 """add_magic_target_components(project, opts) -> None
639 Add the "magic" target based components to the project, which can only be
640 determined based on the target configuration options.
642 This currently is responsible for populating the required_libraries list of
643 the "all-targets", "Native", "NativeCodeGen", and "Engine" components.
646 # Determine the available targets.
647 available_targets = dict((ci.name,ci)
648 for ci in project.component_infos
649 if ci.type_name == 'TargetGroup')
651 # Find the configured native target.
653 # We handle a few special cases of target names here for historical
654 # reasons, as these are the names configure currently comes up with.
655 native_target_name = { 'x86' : 'X86',
657 'Unknown' : None }.get(opts.native_target,
659 if native_target_name is None:
662 native_target = available_targets.get(native_target_name)
663 if native_target is None:
664 parser.error("invalid native target: %r (not in project)" % (
665 opts.native_target,))
666 if native_target.type_name != 'TargetGroup':
667 parser.error("invalid native target: %r (not a target)" % (
668 opts.native_target,))
670 # Find the list of targets to enable.
671 if opts.enable_targets is None:
672 enable_targets = available_targets.values()
674 # We support both space separated and semi-colon separated lists.
675 if ' ' in opts.enable_targets:
676 enable_target_names = opts.enable_targets.split()
678 enable_target_names = opts.enable_targets.split(';')
681 for name in enable_target_names:
682 target = available_targets.get(name)
684 parser.error("invalid target to enable: %r (not in project)" % (
686 if target.type_name != 'TargetGroup':
687 parser.error("invalid target to enable: %r (not a target)" % (
689 enable_targets.append(target)
691 # Find the special library groups we are going to populate. We enforce that
692 # these appear in the project (instead of just adding them) so that they at
693 # least have an explicit representation in the project LLVMBuild files (and
694 # comments explaining how they are populated).
695 def find_special_group(name):
696 info = info_map.get(name)
698 fatal("expected project to contain special %r component" % (
701 if info.type_name != 'LibraryGroup':
702 fatal("special component %r should be a LibraryGroup" % (
705 if info.required_libraries:
706 fatal("special component %r must have empty %r list" % (
707 name, 'required_libraries'))
708 if info.add_to_library_groups:
709 fatal("special component %r must have empty %r list" % (
710 name, 'add_to_library_groups'))
712 info._is_special_group = True
715 info_map = dict((ci.name, ci) for ci in project.component_infos)
716 all_targets = find_special_group('all-targets')
717 native_group = find_special_group('Native')
718 native_codegen_group = find_special_group('NativeCodeGen')
719 engine_group = find_special_group('Engine')
721 # Set the enabled bit in all the target groups, and append to the
723 for ci in enable_targets:
724 all_targets.required_libraries.append(ci.name)
727 # If we have a native target, then that defines the native and
728 # native_codegen libraries.
729 if native_target and native_target.enabled:
730 native_group.required_libraries.append(native_target.name)
731 native_codegen_group.required_libraries.append(
732 '%sCodeGen' % native_target.name)
734 # If we have a native target with a JIT, use that for the engine. Otherwise,
735 # use the interpreter.
736 if native_target and native_target.enabled and native_target.has_jit:
737 engine_group.required_libraries.append('JIT')
738 engine_group.required_libraries.append(native_group.name)
740 engine_group.required_libraries.append('Interpreter')
743 from optparse import OptionParser, OptionGroup
744 parser = OptionParser("usage: %prog [options]")
746 group = OptionGroup(parser, "Input Options")
747 group.add_option("", "--source-root", dest="source_root", metavar="PATH",
748 help="Path to the LLVM source (inferred if not given)",
749 action="store", default=None)
750 group.add_option("", "--llvmbuild-source-root",
751 dest="llvmbuild_source_root",
753 "If given, an alternate path to search for LLVMBuild.txt files"),
754 action="store", default=None, metavar="PATH")
755 group.add_option("", "--build-root", dest="build_root", metavar="PATH",
756 help="Path to the build directory (if needed) [%default]",
757 action="store", default=None)
758 parser.add_option_group(group)
760 group = OptionGroup(parser, "Output Options")
761 group.add_option("", "--print-tree", dest="print_tree",
762 help="Print out the project component tree [%default]",
763 action="store_true", default=False)
764 group.add_option("", "--write-llvmbuild", dest="write_llvmbuild",
765 help="Write out the LLVMBuild.txt files to PATH",
766 action="store", default=None, metavar="PATH")
767 group.add_option("", "--write-library-table",
768 dest="write_library_table", metavar="PATH",
769 help="Write the C++ library dependency table to PATH",
770 action="store", default=None)
771 group.add_option("", "--write-cmake-fragment",
772 dest="write_cmake_fragment", metavar="PATH",
773 help="Write the CMake project information to PATH",
774 action="store", default=None)
775 group.add_option("", "--write-make-fragment",
776 dest="write_make_fragment", metavar="PATH",
777 help="Write the Makefile project information to PATH",
778 action="store", default=None)
779 group.add_option("", "--configure-target-def-file",
780 dest="configure_target_def_files",
781 help="""Configure the given file at SUBPATH (relative to
782 the inferred or given source root, and with a '.in' suffix) by replacing certain
783 substitution variables with lists of targets that support certain features (for
784 example, targets with AsmPrinters) and write the result to the build root (as
785 given by --build-root) at the same SUBPATH""",
786 metavar="SUBPATH", action="append", default=None)
787 parser.add_option_group(group)
789 group = OptionGroup(parser, "Configuration Options")
790 group.add_option("", "--native-target",
791 dest="native_target", metavar="NAME",
792 help=("Treat the named target as the 'native' one, if "
794 action="store", default=None)
795 group.add_option("", "--enable-targets",
796 dest="enable_targets", metavar="NAMES",
797 help=("Enable the given space or semi-colon separated "
798 "list of targets, or all targets if not present"),
799 action="store", default=None)
800 group.add_option("", "--enable-optional-components",
801 dest="optional_components", metavar="NAMES",
802 help=("Enable the given space or semi-colon separated "
803 "list of optional components"),
804 action="store", default=None)
805 parser.add_option_group(group)
807 (opts, args) = parser.parse_args()
809 # Determine the LLVM source path, if not given.
810 source_root = opts.source_root
812 if not os.path.exists(os.path.join(source_root, 'lib', 'IR',
814 parser.error('invalid LLVM source root: %r' % source_root)
816 llvmbuild_path = os.path.dirname(__file__)
817 llvm_build_path = os.path.dirname(llvmbuild_path)
818 utils_path = os.path.dirname(llvm_build_path)
819 source_root = os.path.dirname(utils_path)
820 if not os.path.exists(os.path.join(source_root, 'lib', 'IR',
822 parser.error('unable to infer LLVM source root, please specify')
824 # Construct the LLVM project information.
825 llvmbuild_source_root = opts.llvmbuild_source_root or source_root
826 project_info = LLVMProjectInfo.load_from_path(
827 source_root, llvmbuild_source_root)
829 # Add the magic target based components.
830 add_magic_target_components(parser, project_info, opts)
832 # Validate the project component info.
833 project_info.validate_components()
835 # Print the component tree, if requested.
837 project_info.print_tree()
839 # Write out the components, if requested. This is useful for auto-upgrading
841 if opts.write_llvmbuild:
842 project_info.write_components(opts.write_llvmbuild)
844 # Write out the required library table, if requested.
845 if opts.write_library_table:
846 project_info.write_library_table(opts.write_library_table,
847 opts.optional_components)
849 # Write out the make fragment, if requested.
850 if opts.write_make_fragment:
851 project_info.write_make_fragment(opts.write_make_fragment)
853 # Write out the cmake fragment, if requested.
854 if opts.write_cmake_fragment:
855 project_info.write_cmake_fragment(opts.write_cmake_fragment)
857 # Configure target definition files, if requested.
858 if opts.configure_target_def_files:
859 # Verify we were given a build root.
860 if not opts.build_root:
861 parser.error("must specify --build-root when using "
862 "--configure-target-def-file")
864 # Create the substitution list.
865 available_targets = [ci for ci in project_info.component_infos
866 if ci.type_name == 'TargetGroup']
868 ("@LLVM_ENUM_TARGETS@",
869 ' '.join('LLVM_TARGET(%s)' % ci.name
870 for ci in available_targets)),
871 ("@LLVM_ENUM_ASM_PRINTERS@",
872 ' '.join('LLVM_ASM_PRINTER(%s)' % ci.name
873 for ci in available_targets
874 if ci.has_asmprinter)),
875 ("@LLVM_ENUM_ASM_PARSERS@",
876 ' '.join('LLVM_ASM_PARSER(%s)' % ci.name
877 for ci in available_targets
878 if ci.has_asmparser)),
879 ("@LLVM_ENUM_DISASSEMBLERS@",
880 ' '.join('LLVM_DISASSEMBLER(%s)' % ci.name
881 for ci in available_targets
882 if ci.has_disassembler))]
884 # Configure the given files.
885 for subpath in opts.configure_target_def_files:
886 inpath = os.path.join(source_root, subpath + '.in')
887 outpath = os.path.join(opts.build_root, subpath)
888 result = configutil.configure_file(inpath, outpath, substitutions)
890 note("configured file %r hasn't changed" % outpath)
892 if __name__=='__main__':