1 from __future__ import absolute_import
6 import llvmbuild.componentinfo as componentinfo
7 import llvmbuild.configutil as configutil
9 from llvmbuild.util import fatal, note
13 def cmake_quote_string(value):
15 cmake_quote_string(value) -> str
17 Return a quoted form of the given value that is suitable for use in CMake
21 # Currently, we only handle escaping backslashes.
22 value = value.replace("\\", "\\\\")
26 def cmake_quote_path(value):
28 cmake_quote_path(value) -> str
30 Return a quoted form of the given value that is suitable for use in CMake
34 # CMake has a bug in it's Makefile generator that doesn't properly quote
35 # strings it generates. So instead of using proper quoting, we just use "/"
36 # style paths. Currently, we only handle escaping backslashes.
37 value = value.replace("\\", "/")
41 def mk_quote_string_for_target(value):
43 mk_quote_string_for_target(target_name) -> str
45 Return a quoted form of the given target_name suitable for including in a
46 Makefile as a target name.
49 # The only quoting we currently perform is for ':', to support msys users.
50 return value.replace(":", "\\:")
52 def make_install_dir(path):
54 make_install_dir(path) -> None
56 Create the given directory path for installation, including any parents.
59 # os.makedirs considers it an error to be called with an existent path.
60 if not os.path.exists(path):
65 class LLVMProjectInfo(object):
67 def load_infos_from_path(llvmbuild_source_root):
69 # Load the LLVMBuild file.
70 llvmbuild_path = os.path.join(llvmbuild_source_root + subpath,
72 if not os.path.exists(llvmbuild_path):
73 fatal("missing LLVMBuild.txt file at: %r" % (llvmbuild_path,))
75 # Parse the components from it.
76 common,info_iter = componentinfo.load_from_path(llvmbuild_path,
78 for info in info_iter:
81 # Recurse into the specified subdirectories.
82 for subdir in common.get_list("subdirectories"):
83 for item in recurse(os.path.join(subpath, subdir)):
89 def load_from_path(source_root, llvmbuild_source_root):
91 LLVMProjectInfo.load_infos_from_path(llvmbuild_source_root))
93 return LLVMProjectInfo(source_root, infos)
95 def __init__(self, source_root, component_infos):
96 # Store our simple ivars.
97 self.source_root = source_root
98 self.component_infos = list(component_infos)
99 self.component_info_map = None
100 self.ordered_component_infos = None
102 def validate_components(self):
103 """validate_components() -> None
105 Validate that the project components are well-defined. Among other
106 things, this checks that:
107 - Components have valid references.
108 - Components references do not form cycles.
110 We also construct the map from component names to info, and the
111 topological ordering of components.
114 # Create the component info map and validate that component names are
116 self.component_info_map = {}
117 for ci in self.component_infos:
118 existing = self.component_info_map.get(ci.name)
119 if existing is not None:
120 # We found a duplicate component name, report it and error out.
121 fatal("found duplicate component %r (at %r and %r)" % (
122 ci.name, ci.subpath, existing.subpath))
123 self.component_info_map[ci.name] = ci
125 # Disallow 'all' as a component name, which is a special case.
126 if 'all' in self.component_info_map:
127 fatal("project is not allowed to define 'all' component")
129 # Add the root component.
130 if '$ROOT' in self.component_info_map:
131 fatal("project is not allowed to define $ROOT component")
132 self.component_info_map['$ROOT'] = componentinfo.GroupComponentInfo(
134 self.component_infos.append(self.component_info_map['$ROOT'])
136 # Topologically order the component information according to their
137 # component references.
138 def visit_component_info(ci, current_stack, current_set):
139 # Check for a cycles.
140 if ci in current_set:
141 # We found a cycle, report it and error out.
142 cycle_description = ' -> '.join(
143 '%r (%s)' % (ci.name, relation)
144 for relation,ci in current_stack)
145 fatal("found cycle to %r after following: %s -> %s" % (
146 ci.name, cycle_description, ci.name))
148 # If we have already visited this item, we are done.
149 if ci not in components_to_visit:
152 # Otherwise, mark the component info as visited and traverse.
153 components_to_visit.remove(ci)
155 # Validate the parent reference, which we treat specially.
156 if ci.parent is not None:
157 parent = self.component_info_map.get(ci.parent)
159 fatal("component %r has invalid reference %r (via %r)" % (
160 ci.name, ci.parent, 'parent'))
161 ci.set_parent_instance(parent)
163 for relation,referent_name in ci.get_component_references():
164 # Validate that the reference is ok.
165 referent = self.component_info_map.get(referent_name)
167 fatal("component %r has invalid reference %r (via %r)" % (
168 ci.name, referent_name, relation))
170 # Visit the reference.
171 current_stack.append((relation,ci))
173 visit_component_info(referent, current_stack, current_set)
174 current_set.remove(ci)
177 # Finally, add the component info to the ordered list.
178 self.ordered_component_infos.append(ci)
180 # FIXME: We aren't actually correctly checking for cycles along the
181 # parent edges. Haven't decided how I want to handle this -- I thought
182 # about only checking cycles by relation type. If we do that, it falls
183 # out easily. If we don't, we should special case the check.
185 self.ordered_component_infos = []
186 components_to_visit = sorted(
187 set(self.component_infos),
188 key = lambda c: c.name)
189 while components_to_visit:
190 visit_component_info(components_to_visit[0], [], set())
192 # Canonicalize children lists.
193 for c in self.ordered_component_infos:
194 c.children.sort(key = lambda c: c.name)
196 def print_tree(self):
197 def visit(node, depth = 0):
198 print('%s%-40s (%s)' % (' '*depth, node.name, node.type_name))
199 for c in node.children:
201 visit(self.component_info_map['$ROOT'])
203 def write_components(self, output_path):
204 # Organize all the components by the directory their LLVMBuild file
207 for ci in self.component_infos:
208 # Ignore the $ROOT component.
209 if ci.parent is None:
212 info_basedir[ci.subpath] = info_basedir.get(ci.subpath, []) + [ci]
214 # Compute the list of subdirectories to scan.
216 for ci in self.component_infos:
217 # Ignore root components.
218 if ci.subpath == '/':
221 # Otherwise, append this subpath to the parent list.
222 parent_path = os.path.dirname(ci.subpath)
223 subpath_subdirs[parent_path] = parent_list = subpath_subdirs.get(
225 parent_list.add(os.path.basename(ci.subpath))
227 # Generate the build files.
228 for subpath, infos in info_basedir.items():
229 # Order the components by name to have a canonical ordering.
230 infos.sort(key = lambda ci: ci.name)
232 # Format the components into llvmbuild fragments.
235 # Add the common fragments.
236 subdirectories = subpath_subdirs.get(subpath)
240 """ % (" ".join(sorted(subdirectories)),)
241 fragments.append(("common", fragment))
243 # Add the component fragments.
244 num_common_fragments = len(fragments)
246 fragment = ci.get_llvmbuild_fragment()
250 name = "component_%d" % (len(fragments) - num_common_fragments)
251 fragments.append((name, fragment))
256 assert subpath.startswith('/')
257 directory_path = os.path.join(output_path, subpath[1:])
259 # Create the directory if it does not already exist.
260 if not os.path.exists(directory_path):
261 os.makedirs(directory_path)
263 # In an effort to preserve comments (which aren't parsed), read in
264 # the original file and extract the comments. We only know how to
265 # associate comments that prefix a section name.
266 f = open(infos[0]._source_path)
270 if ln.startswith(';'):
272 elif ln.startswith('[') and ln.endswith(']\n'):
273 comments_map[ln[1:-2]] = comment_block
278 # Create the LLVMBuild fil[e.
279 file_path = os.path.join(directory_path, 'LLVMBuild.txt')
280 f = open(file_path, "w")
283 header_fmt = ';===- %s %s-*- Conf -*--===;'
284 header_name = '.' + os.path.join(subpath, 'LLVMBuild.txt')
285 header_pad = '-' * (80 - len(header_fmt % (header_name, '')))
286 header_string = header_fmt % (header_name, header_pad)
290 ; The LLVM Compiler Infrastructure
292 ; This file is distributed under the University of Illinois Open Source
293 ; License. See LICENSE.TXT for details.
295 ;===------------------------------------------------------------------------===;
297 ; This is an LLVMBuild description file for the components in this subdirectory.
299 ; For more information on the LLVMBuild system, please see:
301 ; http://llvm.org/docs/LLVMBuild.html
303 ;===------------------------------------------------------------------------===;
307 # Write out each fragment.each component fragment.
308 for name,fragment in fragments:
309 comment = comments_map.get(name)
310 if comment is not None:
312 f.write("[%s]\n" % name)
314 if fragment is not fragments[-1][1]:
319 def write_library_table(self, output_path, enabled_optional_components):
320 # Write out the mapping from component names to required libraries.
322 # We do this in topological order so that we know we can append the
323 # dependencies for added library groups.
325 for c in self.ordered_component_infos:
326 # Skip optional components which are not enabled.
327 if c.type_name == 'OptionalLibrary' \
328 and c.name not in enabled_optional_components:
331 # Skip target groups which are not enabled.
332 tg = c.get_parent_target_group()
333 if tg and not tg.enabled:
336 # Only certain components are in the table.
337 if c.type_name not in ('Library', 'OptionalLibrary', \
338 'LibraryGroup', 'TargetGroup'):
341 # Compute the llvm-config "component name". For historical reasons,
342 # this is lowercased based on the library name.
343 llvmconfig_component_name = c.get_llvmconfig_component_name()
345 # Get the library name, or None for LibraryGroups.
346 if c.type_name == 'Library' or c.type_name == 'OptionalLibrary':
347 library_name = c.get_prefixed_library_name()
348 is_installed = c.installed
353 # Get the component names of all the required libraries.
354 required_llvmconfig_component_names = [
355 self.component_info_map[dep].get_llvmconfig_component_name()
356 for dep in c.required_libraries]
358 # Insert the entries for library groups we should add to.
359 for dep in c.add_to_library_groups:
360 entries[dep][2].append(llvmconfig_component_name)
363 entries[c.name] = (llvmconfig_component_name, library_name,
364 required_llvmconfig_component_names,
367 # Convert to a list of entries and sort by name.
368 entries = list(entries.values())
370 # Create an 'all' pseudo component. We keep the dependency list small by
371 # only listing entries that have no other dependents.
372 root_entries = set(e[0] for e in entries)
373 for _,_,deps,_ in entries:
374 root_entries -= set(deps)
375 entries.append(('all', None, root_entries, True))
379 # Compute the maximum number of required libraries, plus one so there is
381 max_required_libraries = max(len(deps)
382 for _,_,deps,_ in entries) + 1
384 # Write out the library table.
385 make_install_dir(os.path.dirname(output_path))
386 f = open(output_path+'.new', 'w')
388 //===- llvm-build generated file --------------------------------*- C++ -*-===//
390 // Component Library Depenedency Table
392 // Automatically generated file, do not edit!
394 //===----------------------------------------------------------------------===//
397 f.write('struct AvailableComponent {\n')
398 f.write(' /// The name of the component.\n')
399 f.write(' const char *Name;\n')
401 f.write(' /// The name of the library for this component (or NULL).\n')
402 f.write(' const char *Library;\n')
404 f.write(' /// Whether the component is installed.\n')
405 f.write(' bool IsInstalled;\n')
408 /// The list of libraries required when linking this component.\n')
409 f.write(' const char *RequiredLibraries[%d];\n' % (
410 max_required_libraries))
411 f.write('} AvailableComponents[%d] = {\n' % len(entries))
412 for name,library_name,required_names,is_installed in entries:
413 if library_name is None:
414 library_name_as_cstr = '0'
416 library_name_as_cstr = '"lib%s.a"' % library_name
417 f.write(' { "%s", %s, %d, { %s } },\n' % (
418 name, library_name_as_cstr, is_installed,
419 ', '.join('"%s"' % dep
420 for dep in required_names)))
424 if not os.path.isfile(output_path):
425 os.rename(output_path+'.new', output_path)
426 elif filecmp.cmp(output_path, output_path+'.new'):
427 os.remove(output_path+'.new')
429 os.remove(output_path)
430 os.rename(output_path+'.new', output_path)
432 def get_required_libraries_for_component(self, ci, traverse_groups = False):
434 get_required_libraries_for_component(component_info) -> iter
436 Given a Library component info descriptor, return an iterator over all
437 of the directly required libraries for linking with this component. If
438 traverse_groups is True, then library and target groups will be
439 traversed to include their required libraries.
442 assert ci.type_name in ('Library', 'OptionalLibrary', 'LibraryGroup', 'TargetGroup')
444 for name in ci.required_libraries:
445 # Get the dependency info.
446 dep = self.component_info_map[name]
448 # If it is a library, yield it.
449 if dep.type_name == 'Library' or dep.type_name == 'OptionalLibrary':
453 # Otherwise if it is a group, yield or traverse depending on what
455 if dep.type_name in ('LibraryGroup', 'TargetGroup'):
456 if not traverse_groups:
460 for res in self.get_required_libraries_for_component(dep, True):
463 def get_fragment_dependencies(self):
465 get_fragment_dependencies() -> iter
467 Compute the list of files (as absolute paths) on which the output
468 fragments depend (i.e., files for which a modification should trigger a
469 rebuild of the fragment).
472 # Construct a list of all the dependencies of the Makefile fragment
473 # itself. These include all the LLVMBuild files themselves, as well as
474 # all of our own sources.
476 # Many components may come from the same file, so we make sure to unique
479 for ci in self.component_infos:
480 p = os.path.join(self.source_root, ci.subpath[1:], 'LLVMBuild.txt')
481 if p not in build_paths:
485 # Gather the list of necessary sources by just finding all loaded
486 # modules that are inside the LLVM source tree.
487 for module in sys.modules.values():
488 # Find the module path.
489 if not hasattr(module, '__file__'):
491 path = getattr(module, '__file__')
495 # Strip off any compiled suffix.
496 if os.path.splitext(path)[1] in ['.pyc', '.pyo', '.pyd']:
499 # If the path exists and is in the source tree, consider it a
501 if (path.startswith(self.source_root) and os.path.exists(path)):
504 def foreach_cmake_library(self, f,
505 enabled_optional_components,
507 for ci in self.ordered_component_infos:
508 # Skip optional components which are not enabled.
509 if ci.type_name == 'OptionalLibrary' \
510 and ci.name not in enabled_optional_components:
513 # We only write the information for libraries currently.
514 if ci.type_name not in ('Library', 'OptionalLibrary'):
517 # Skip disabled targets.
519 tg = ci.get_parent_target_group()
520 if tg and not tg.enabled:
526 def write_cmake_fragment(self, output_path, enabled_optional_components):
528 write_cmake_fragment(output_path) -> None
530 Generate a CMake fragment which includes all of the collated LLVMBuild
531 information in a format that is easily digestible by a CMake. The exact
532 contents of this are closely tied to how the CMake configuration
533 integrates LLVMBuild, see CMakeLists.txt in the top-level.
536 dependencies = list(self.get_fragment_dependencies())
538 # Write out the CMake fragment.
539 make_install_dir(os.path.dirname(output_path))
540 f = open(output_path, 'w')
544 #===-- %s - LLVMBuild Configuration for LLVM %s-*- CMake -*--===#'
545 header_name = os.path.basename(output_path)
546 header_pad = '-' * (80 - len(header_fmt % (header_name, '')))
547 header_string = header_fmt % (header_name, header_pad)
551 # The LLVM Compiler Infrastructure
553 # This file is distributed under the University of Illinois Open Source
554 # License. See LICENSE.TXT for details.
556 #===------------------------------------------------------------------------===#
558 # This file contains the LLVMBuild project information in a format easily
559 # consumed by the CMake based build system.
561 # This file is autogenerated by llvm-build, do not edit!
563 #===------------------------------------------------------------------------===#
567 # Write the dependency information in the best way we can.
569 # LLVMBuild CMake fragment dependencies.
571 # CMake has no builtin way to declare that the configuration depends on
572 # a particular file. However, a side effect of configure_file is to add
573 # said input file to CMake's internal dependency list. So, we use that
574 # and a dummy output file to communicate the dependency information to
577 # FIXME: File a CMake RFE to get a properly supported version of this
580 for dep in dependencies:
582 configure_file(\"%s\"
583 ${CMAKE_CURRENT_BINARY_DIR}/DummyConfigureOutput)\n""" % (
584 cmake_quote_path(dep),))
586 # Write the properties we use to encode the required library dependency
587 # information in a form CMake can easily use directly.
589 # Explicit library dependency information.
591 # The following property assignments effectively create a map from component
592 # names to required libraries, in a way that is easily accessed from CMake.
594 self.foreach_cmake_library(
597 set_property(GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_%s %s)\n""" % (
598 ci.get_prefixed_library_name(), " ".join(sorted(
599 dep.get_prefixed_library_name()
600 for dep in self.get_required_libraries_for_component(ci)))))
602 enabled_optional_components,
603 skip_disabled = False
608 def write_cmake_exports_fragment(self, output_path, enabled_optional_components):
610 write_cmake_exports_fragment(output_path) -> None
612 Generate a CMake fragment which includes LLVMBuild library
613 dependencies expressed similarly to how CMake would write
614 them via install(EXPORT).
617 dependencies = list(self.get_fragment_dependencies())
619 # Write out the CMake exports fragment.
620 make_install_dir(os.path.dirname(output_path))
621 f = open(output_path, 'w')
624 # Explicit library dependency information.
626 # The following property assignments tell CMake about link
627 # dependencies of libraries imported from LLVM.
629 self.foreach_cmake_library(
632 set_property(TARGET %s PROPERTY IMPORTED_LINK_INTERFACE_LIBRARIES %s)\n""" % (
633 ci.get_prefixed_library_name(), " ".join(sorted(
634 dep.get_prefixed_library_name()
635 for dep in self.get_required_libraries_for_component(ci)))))
637 enabled_optional_components,
643 def write_make_fragment(self, output_path, enabled_optional_components):
645 write_make_fragment(output_path) -> None
647 Generate a Makefile fragment which includes all of the collated
648 LLVMBuild information in a format that is easily digestible by a
649 Makefile. The exact contents of this are closely tied to how the LLVM
650 Makefiles integrate LLVMBuild, see Makefile.rules in the top-level.
653 dependencies = list(self.get_fragment_dependencies())
655 # Write out the Makefile fragment.
656 make_install_dir(os.path.dirname(output_path))
657 f = open(output_path, 'w')
661 #===-- %s - LLVMBuild Configuration for LLVM %s-*- Makefile -*--===#'
662 header_name = os.path.basename(output_path)
663 header_pad = '-' * (80 - len(header_fmt % (header_name, '')))
664 header_string = header_fmt % (header_name, header_pad)
668 # The LLVM Compiler Infrastructure
670 # This file is distributed under the University of Illinois Open Source
671 # License. See LICENSE.TXT for details.
673 #===------------------------------------------------------------------------===#
675 # This file contains the LLVMBuild project information in a format easily
676 # consumed by the Makefile based build system.
678 # This file is autogenerated by llvm-build, do not edit!
680 #===------------------------------------------------------------------------===#
684 # Write the dependencies for the fragment.
686 # FIXME: Technically, we need to properly quote for Make here.
688 # Clients must explicitly enable LLVMBUILD_INCLUDE_DEPENDENCIES to get
689 # these dependencies. This is a compromise to help improve the
690 # performance of recursive Make systems.
692 f.write('ifeq ($(LLVMBUILD_INCLUDE_DEPENDENCIES),1)\n')
693 f.write("# The dependencies for this Makefile fragment itself.\n")
694 f.write("%s: \\\n" % (mk_quote_string_for_target(output_path),))
695 for dep in dependencies:
696 f.write("\t%s \\\n" % (dep,))
699 # Generate dummy rules for each of the dependencies, so that things
700 # continue to work correctly if any of those files are moved or removed.
702 # The dummy targets to allow proper regeneration even when files are moved or
705 for dep in dependencies:
706 f.write("%s:\n" % (mk_quote_string_for_target(dep),))
710 # List of libraries to be exported for use by applications.
711 # See 'cmake/modules/Makefile'.
712 LLVM_LIBS_TO_EXPORT :=""")
713 self.foreach_cmake_library(
715 f.write(' \\\n %s' % ci.get_prefixed_library_name())
717 enabled_optional_components,
724 def add_magic_target_components(parser, project, opts):
725 """add_magic_target_components(project, opts) -> None
727 Add the "magic" target based components to the project, which can only be
728 determined based on the target configuration options.
730 This currently is responsible for populating the required_libraries list of
731 the "all-targets", "Native", "NativeCodeGen", and "Engine" components.
734 # Determine the available targets.
735 available_targets = dict((ci.name,ci)
736 for ci in project.component_infos
737 if ci.type_name == 'TargetGroup')
739 # Find the configured native target.
741 # We handle a few special cases of target names here for historical
742 # reasons, as these are the names configure currently comes up with.
743 native_target_name = { 'x86' : 'X86',
745 'Unknown' : None }.get(opts.native_target,
747 if native_target_name is None:
750 native_target = available_targets.get(native_target_name)
751 if native_target is None:
752 parser.error("invalid native target: %r (not in project)" % (
753 opts.native_target,))
754 if native_target.type_name != 'TargetGroup':
755 parser.error("invalid native target: %r (not a target)" % (
756 opts.native_target,))
758 # Find the list of targets to enable.
759 if opts.enable_targets is None:
760 enable_targets = available_targets.values()
762 # We support both space separated and semi-colon separated lists.
763 if opts.enable_targets == '':
764 enable_target_names = []
765 elif ' ' in opts.enable_targets:
766 enable_target_names = opts.enable_targets.split()
768 enable_target_names = opts.enable_targets.split(';')
771 for name in enable_target_names:
772 target = available_targets.get(name)
774 parser.error("invalid target to enable: %r (not in project)" % (
776 if target.type_name != 'TargetGroup':
777 parser.error("invalid target to enable: %r (not a target)" % (
779 enable_targets.append(target)
781 # Find the special library groups we are going to populate. We enforce that
782 # these appear in the project (instead of just adding them) so that they at
783 # least have an explicit representation in the project LLVMBuild files (and
784 # comments explaining how they are populated).
785 def find_special_group(name):
786 info = info_map.get(name)
788 fatal("expected project to contain special %r component" % (
791 if info.type_name != 'LibraryGroup':
792 fatal("special component %r should be a LibraryGroup" % (
795 if info.required_libraries:
796 fatal("special component %r must have empty %r list" % (
797 name, 'required_libraries'))
798 if info.add_to_library_groups:
799 fatal("special component %r must have empty %r list" % (
800 name, 'add_to_library_groups'))
802 info._is_special_group = True
805 info_map = dict((ci.name, ci) for ci in project.component_infos)
806 all_targets = find_special_group('all-targets')
807 native_group = find_special_group('Native')
808 native_codegen_group = find_special_group('NativeCodeGen')
809 engine_group = find_special_group('Engine')
811 # Set the enabled bit in all the target groups, and append to the
813 for ci in enable_targets:
814 all_targets.required_libraries.append(ci.name)
817 # If we have a native target, then that defines the native and
818 # native_codegen libraries.
819 if native_target and native_target.enabled:
820 native_group.required_libraries.append(native_target.name)
821 native_codegen_group.required_libraries.append(
822 '%sCodeGen' % native_target.name)
824 # If we have a native target with a JIT, use that for the engine. Otherwise,
825 # use the interpreter.
826 if native_target and native_target.enabled and native_target.has_jit:
827 engine_group.required_libraries.append('MCJIT')
828 engine_group.required_libraries.append(native_group.name)
830 engine_group.required_libraries.append('Interpreter')
833 from optparse import OptionParser, OptionGroup
834 parser = OptionParser("usage: %prog [options]")
836 group = OptionGroup(parser, "Input Options")
837 group.add_option("", "--source-root", dest="source_root", metavar="PATH",
838 help="Path to the LLVM source (inferred if not given)",
839 action="store", default=None)
840 group.add_option("", "--llvmbuild-source-root",
841 dest="llvmbuild_source_root",
843 "If given, an alternate path to search for LLVMBuild.txt files"),
844 action="store", default=None, metavar="PATH")
845 group.add_option("", "--build-root", dest="build_root", metavar="PATH",
846 help="Path to the build directory (if needed) [%default]",
847 action="store", default=None)
848 parser.add_option_group(group)
850 group = OptionGroup(parser, "Output Options")
851 group.add_option("", "--print-tree", dest="print_tree",
852 help="Print out the project component tree [%default]",
853 action="store_true", default=False)
854 group.add_option("", "--write-llvmbuild", dest="write_llvmbuild",
855 help="Write out the LLVMBuild.txt files to PATH",
856 action="store", default=None, metavar="PATH")
857 group.add_option("", "--write-library-table",
858 dest="write_library_table", metavar="PATH",
859 help="Write the C++ library dependency table to PATH",
860 action="store", default=None)
861 group.add_option("", "--write-cmake-fragment",
862 dest="write_cmake_fragment", metavar="PATH",
863 help="Write the CMake project information to PATH",
864 action="store", default=None)
865 group.add_option("", "--write-cmake-exports-fragment",
866 dest="write_cmake_exports_fragment", metavar="PATH",
867 help="Write the CMake exports information to PATH",
868 action="store", default=None)
869 group.add_option("", "--write-make-fragment",
870 dest="write_make_fragment", metavar="PATH",
871 help="Write the Makefile project information to PATH",
872 action="store", default=None)
873 group.add_option("", "--configure-target-def-file",
874 dest="configure_target_def_files",
875 help="""Configure the given file at SUBPATH (relative to
876 the inferred or given source root, and with a '.in' suffix) by replacing certain
877 substitution variables with lists of targets that support certain features (for
878 example, targets with AsmPrinters) and write the result to the build root (as
879 given by --build-root) at the same SUBPATH""",
880 metavar="SUBPATH", action="append", default=None)
881 parser.add_option_group(group)
883 group = OptionGroup(parser, "Configuration Options")
884 group.add_option("", "--native-target",
885 dest="native_target", metavar="NAME",
886 help=("Treat the named target as the 'native' one, if "
888 action="store", default=None)
889 group.add_option("", "--enable-targets",
890 dest="enable_targets", metavar="NAMES",
891 help=("Enable the given space or semi-colon separated "
892 "list of targets, or all targets if not present"),
893 action="store", default=None)
894 group.add_option("", "--enable-optional-components",
895 dest="optional_components", metavar="NAMES",
896 help=("Enable the given space or semi-colon separated "
897 "list of optional components"),
898 action="store", default="")
899 parser.add_option_group(group)
901 (opts, args) = parser.parse_args()
903 # Determine the LLVM source path, if not given.
904 source_root = opts.source_root
906 if not os.path.exists(os.path.join(source_root, 'lib', 'IR',
908 parser.error('invalid LLVM source root: %r' % source_root)
910 llvmbuild_path = os.path.dirname(__file__)
911 llvm_build_path = os.path.dirname(llvmbuild_path)
912 utils_path = os.path.dirname(llvm_build_path)
913 source_root = os.path.dirname(utils_path)
914 if not os.path.exists(os.path.join(source_root, 'lib', 'IR',
916 parser.error('unable to infer LLVM source root, please specify')
918 # Construct the LLVM project information.
919 llvmbuild_source_root = opts.llvmbuild_source_root or source_root
920 project_info = LLVMProjectInfo.load_from_path(
921 source_root, llvmbuild_source_root)
923 # Add the magic target based components.
924 add_magic_target_components(parser, project_info, opts)
926 # Validate the project component info.
927 project_info.validate_components()
929 # Print the component tree, if requested.
931 project_info.print_tree()
933 # Write out the components, if requested. This is useful for auto-upgrading
935 if opts.write_llvmbuild:
936 project_info.write_components(opts.write_llvmbuild)
938 # Write out the required library table, if requested.
939 if opts.write_library_table:
940 project_info.write_library_table(opts.write_library_table,
941 opts.optional_components)
943 # Write out the make fragment, if requested.
944 if opts.write_make_fragment:
945 project_info.write_make_fragment(opts.write_make_fragment,
946 opts.optional_components)
948 # Write out the cmake fragment, if requested.
949 if opts.write_cmake_fragment:
950 project_info.write_cmake_fragment(opts.write_cmake_fragment,
951 opts.optional_components)
952 if opts.write_cmake_exports_fragment:
953 project_info.write_cmake_exports_fragment(opts.write_cmake_exports_fragment,
954 opts.optional_components)
956 # Configure target definition files, if requested.
957 if opts.configure_target_def_files:
958 # Verify we were given a build root.
959 if not opts.build_root:
960 parser.error("must specify --build-root when using "
961 "--configure-target-def-file")
963 # Create the substitution list.
964 available_targets = [ci for ci in project_info.component_infos
965 if ci.type_name == 'TargetGroup']
967 ("@LLVM_ENUM_TARGETS@",
968 ' '.join('LLVM_TARGET(%s)' % ci.name
969 for ci in available_targets)),
970 ("@LLVM_ENUM_ASM_PRINTERS@",
971 ' '.join('LLVM_ASM_PRINTER(%s)' % ci.name
972 for ci in available_targets
973 if ci.has_asmprinter)),
974 ("@LLVM_ENUM_ASM_PARSERS@",
975 ' '.join('LLVM_ASM_PARSER(%s)' % ci.name
976 for ci in available_targets
977 if ci.has_asmparser)),
978 ("@LLVM_ENUM_DISASSEMBLERS@",
979 ' '.join('LLVM_DISASSEMBLER(%s)' % ci.name
980 for ci in available_targets
981 if ci.has_disassembler))]
983 # Configure the given files.
984 for subpath in opts.configure_target_def_files:
985 inpath = os.path.join(source_root, subpath + '.in')
986 outpath = os.path.join(opts.build_root, subpath)
987 result = configutil.configure_file(inpath, outpath, substitutions)
989 note("configured file %r hasn't changed" % outpath)
991 if __name__=='__main__':