diff options
Diffstat (limited to 'utils/llvm-build/llvmbuild/main.py')
| -rw-r--r-- | utils/llvm-build/llvmbuild/main.py | 868 |
1 files changed, 868 insertions, 0 deletions
diff --git a/utils/llvm-build/llvmbuild/main.py b/utils/llvm-build/llvmbuild/main.py new file mode 100644 index 0000000..36bca87 --- /dev/null +++ b/utils/llvm-build/llvmbuild/main.py @@ -0,0 +1,868 @@ +import StringIO +import os +import sys + +import componentinfo +import configutil + +from util import * + +### + +def cmake_quote_string(value): + """ + cmake_quote_string(value) -> str + + Return a quoted form of the given value that is suitable for use in CMake + language files. + """ + + # Currently, we only handle escaping backslashes. + value = value.replace("\\", "\\\\") + + return value + +def cmake_quote_path(value): + """ + cmake_quote_path(value) -> str + + Return a quoted form of the given value that is suitable for use in CMake + language files. + """ + + # CMake has a bug in it's Makefile generator that doesn't properly quote + # strings it generates. So instead of using proper quoting, we just use "/" + # style paths. Currently, we only handle escaping backslashes. + value = value.replace("\\", "/") + + return value + +def mk_quote_string_for_target(value): + """ + mk_quote_string_for_target(target_name) -> str + + Return a quoted form of the given target_name suitable for including in a + Makefile as a target name. + """ + + # The only quoting we currently perform is for ':', to support msys users. + return value.replace(":", "\\:") + +def make_install_dir(path): + """ + make_install_dir(path) -> None + + Create the given directory path for installation, including any parents. + """ + + # os.makedirs considers it an error to be called with an existant path. + if not os.path.exists(path): + os.makedirs(path) + +### + +class LLVMProjectInfo(object): + @staticmethod + def load_infos_from_path(llvmbuild_source_root): + def recurse(subpath): + # Load the LLVMBuild file. + llvmbuild_path = os.path.join(llvmbuild_source_root + subpath, + 'LLVMBuild.txt') + if not os.path.exists(llvmbuild_path): + fatal("missing LLVMBuild.txt file at: %r" % (llvmbuild_path,)) + + # Parse the components from it. + common,info_iter = componentinfo.load_from_path(llvmbuild_path, + subpath) + for info in info_iter: + yield info + + # Recurse into the specified subdirectories. + for subdir in common.get_list("subdirectories"): + for item in recurse(os.path.join(subpath, subdir)): + yield item + + return recurse("/") + + @staticmethod + def load_from_path(source_root, llvmbuild_source_root): + infos = list( + LLVMProjectInfo.load_infos_from_path(llvmbuild_source_root)) + + return LLVMProjectInfo(source_root, infos) + + def __init__(self, source_root, component_infos): + # Store our simple ivars. + self.source_root = source_root + self.component_infos = list(component_infos) + self.component_info_map = None + self.ordered_component_infos = None + + def validate_components(self): + """validate_components() -> None + + Validate that the project components are well-defined. Among other + things, this checks that: + - Components have valid references. + - Components references do not form cycles. + + We also construct the map from component names to info, and the + topological ordering of components. + """ + + # Create the component info map and validate that component names are + # unique. + self.component_info_map = {} + for ci in self.component_infos: + existing = self.component_info_map.get(ci.name) + if existing is not None: + # We found a duplicate component name, report it and error out. + fatal("found duplicate component %r (at %r and %r)" % ( + ci.name, ci.subpath, existing.subpath)) + self.component_info_map[ci.name] = ci + + # Disallow 'all' as a component name, which is a special case. + if 'all' in self.component_info_map: + fatal("project is not allowed to define 'all' component") + + # Add the root component. + if '$ROOT' in self.component_info_map: + fatal("project is not allowed to define $ROOT component") + self.component_info_map['$ROOT'] = componentinfo.GroupComponentInfo( + '/', '$ROOT', None) + self.component_infos.append(self.component_info_map['$ROOT']) + + # Topologically order the component information according to their + # component references. + def visit_component_info(ci, current_stack, current_set): + # Check for a cycles. + if ci in current_set: + # We found a cycle, report it and error out. + cycle_description = ' -> '.join( + '%r (%s)' % (ci.name, relation) + for relation,ci in current_stack) + fatal("found cycle to %r after following: %s -> %s" % ( + ci.name, cycle_description, ci.name)) + + # If we have already visited this item, we are done. + if ci not in components_to_visit: + return + + # Otherwise, mark the component info as visited and traverse. + components_to_visit.remove(ci) + + # Validate the parent reference, which we treat specially. + if ci.parent is not None: + parent = self.component_info_map.get(ci.parent) + if parent is None: + fatal("component %r has invalid reference %r (via %r)" % ( + ci.name, ci.parent, 'parent')) + ci.set_parent_instance(parent) + + for relation,referent_name in ci.get_component_references(): + # Validate that the reference is ok. + referent = self.component_info_map.get(referent_name) + if referent is None: + fatal("component %r has invalid reference %r (via %r)" % ( + ci.name, referent_name, relation)) + + # Visit the reference. + current_stack.append((relation,ci)) + current_set.add(ci) + visit_component_info(referent, current_stack, current_set) + current_set.remove(ci) + current_stack.pop() + + # Finally, add the component info to the ordered list. + self.ordered_component_infos.append(ci) + + # FIXME: We aren't actually correctly checking for cycles along the + # parent edges. Haven't decided how I want to handle this -- I thought + # about only checking cycles by relation type. If we do that, it falls + # out easily. If we don't, we should special case the check. + + self.ordered_component_infos = [] + components_to_visit = set(self.component_infos) + while components_to_visit: + visit_component_info(iter(components_to_visit).next(), [], set()) + + # Canonicalize children lists. + for c in self.ordered_component_infos: + c.children.sort(key = lambda c: c.name) + + def print_tree(self): + def visit(node, depth = 0): + print '%s%-40s (%s)' % (' '*depth, node.name, node.type_name) + for c in node.children: + visit(c, depth + 1) + visit(self.component_info_map['$ROOT']) + + def write_components(self, output_path): + # Organize all the components by the directory their LLVMBuild file + # should go in. + info_basedir = {} + for ci in self.component_infos: + # Ignore the $ROOT component. + if ci.parent is None: + continue + + info_basedir[ci.subpath] = info_basedir.get(ci.subpath, []) + [ci] + + # Compute the list of subdirectories to scan. + subpath_subdirs = {} + for ci in self.component_infos: + # Ignore root components. + if ci.subpath == '/': + continue + + # Otherwise, append this subpath to the parent list. + parent_path = os.path.dirname(ci.subpath) + subpath_subdirs[parent_path] = parent_list = subpath_subdirs.get( + parent_path, set()) + parent_list.add(os.path.basename(ci.subpath)) + + # Generate the build files. + for subpath, infos in info_basedir.items(): + # Order the components by name to have a canonical ordering. + infos.sort(key = lambda ci: ci.name) + + # Format the components into llvmbuild fragments. + fragments = [] + + # Add the common fragments. + subdirectories = subpath_subdirs.get(subpath) + if subdirectories: + fragment = """\ +subdirectories = %s +""" % (" ".join(sorted(subdirectories)),) + fragments.append(("common", fragment)) + + # Add the component fragments. + num_common_fragments = len(fragments) + for ci in infos: + fragment = ci.get_llvmbuild_fragment() + if fragment is None: + continue + + name = "component_%d" % (len(fragments) - num_common_fragments) + fragments.append((name, fragment)) + + if not fragments: + continue + + assert subpath.startswith('/') + directory_path = os.path.join(output_path, subpath[1:]) + + # Create the directory if it does not already exist. + if not os.path.exists(directory_path): + os.makedirs(directory_path) + + # In an effort to preserve comments (which aren't parsed), read in + # the original file and extract the comments. We only know how to + # associate comments that prefix a section name. + f = open(infos[0]._source_path) + comments_map = {} + comment_block = "" + for ln in f: + if ln.startswith(';'): + comment_block += ln + elif ln.startswith('[') and ln.endswith(']\n'): + comments_map[ln[1:-2]] = comment_block + else: + comment_block = "" + f.close() + + # Create the LLVMBuild fil[e. + file_path = os.path.join(directory_path, 'LLVMBuild.txt') + f = open(file_path, "w") + + # Write the header. + header_fmt = ';===- %s %s-*- Conf -*--===;' + header_name = '.' + os.path.join(subpath, 'LLVMBuild.txt') + header_pad = '-' * (80 - len(header_fmt % (header_name, ''))) + header_string = header_fmt % (header_name, header_pad) + print >>f, """\ +%s +; +; The LLVM Compiler Infrastructure +; +; This file is distributed under the University of Illinois Open Source +; License. See LICENSE.TXT for details. +; +;===------------------------------------------------------------------------===; +; +; This is an LLVMBuild description file for the components in this subdirectory. +; +; For more information on the LLVMBuild system, please see: +; +; http://llvm.org/docs/LLVMBuild.html +; +;===------------------------------------------------------------------------===; +""" % header_string + + # Write out each fragment.each component fragment. + for name,fragment in fragments: + comment = comments_map.get(name) + if comment is not None: + f.write(comment) + print >>f, "[%s]" % name + f.write(fragment) + if fragment is not fragments[-1][1]: + print >>f + + f.close() + + def write_library_table(self, output_path): + # Write out the mapping from component names to required libraries. + # + # We do this in topological order so that we know we can append the + # dependencies for added library groups. + entries = {} + for c in self.ordered_component_infos: + # Only certain components are in the table. + if c.type_name not in ('Library', 'LibraryGroup', 'TargetGroup'): + continue + + # Compute the llvm-config "component name". For historical reasons, + # this is lowercased based on the library name. + llvmconfig_component_name = c.get_llvmconfig_component_name() + + # Get the library name, or None for LibraryGroups. + if c.type_name == 'Library': + library_name = c.get_prefixed_library_name() + else: + library_name = None + + # Get the component names of all the required libraries. + required_llvmconfig_component_names = [ + self.component_info_map[dep].get_llvmconfig_component_name() + for dep in c.required_libraries] + + # Insert the entries for library groups we should add to. + for dep in c.add_to_library_groups: + entries[dep][2].append(llvmconfig_component_name) + + # Add the entry. + entries[c.name] = (llvmconfig_component_name, library_name, + required_llvmconfig_component_names) + + # Convert to a list of entries and sort by name. + entries = entries.values() + + # Create an 'all' pseudo component. We keep the dependency list small by + # only listing entries that have no other dependents. + root_entries = set(e[0] for e in entries) + for _,_,deps in entries: + root_entries -= set(deps) + entries.append(('all', None, root_entries)) + + entries.sort() + + # Compute the maximum number of required libraries, plus one so there is + # always a sentinel. + max_required_libraries = max(len(deps) + for _,_,deps in entries) + 1 + + # Write out the library table. + make_install_dir(os.path.dirname(output_path)) + f = open(output_path, 'w') + print >>f, """\ +//===- llvm-build generated file --------------------------------*- C++ -*-===// +// +// Component Library Depenedency Table +// +// Automatically generated file, do not edit! +// +//===----------------------------------------------------------------------===// +""" + print >>f, 'struct AvailableComponent {' + print >>f, ' /// The name of the component.' + print >>f, ' const char *Name;' + print >>f, '' + print >>f, ' /// The name of the library for this component (or NULL).' + print >>f, ' const char *Library;' + print >>f, '' + print >>f, '\ + /// The list of libraries required when linking this component.' + print >>f, ' const char *RequiredLibraries[%d];' % ( + max_required_libraries) + print >>f, '} AvailableComponents[%d] = {' % len(entries) + for name,library_name,required_names in entries: + if library_name is None: + library_name_as_cstr = '0' + else: + library_name_as_cstr = '"lib%s.a"' % library_name + print >>f, ' { "%s", %s, { %s } },' % ( + name, library_name_as_cstr, + ', '.join('"%s"' % dep + for dep in required_names)) + print >>f, '};' + f.close() + + def get_required_libraries_for_component(self, ci, traverse_groups = False): + """ + get_required_libraries_for_component(component_info) -> iter + + Given a Library component info descriptor, return an iterator over all + of the directly required libraries for linking with this component. If + traverse_groups is True, then library and target groups will be + traversed to include their required libraries. + """ + + assert ci.type_name in ('Library', 'LibraryGroup', 'TargetGroup') + + for name in ci.required_libraries: + # Get the dependency info. + dep = self.component_info_map[name] + + # If it is a library, yield it. + if dep.type_name == 'Library': + yield dep + continue + + # Otherwise if it is a group, yield or traverse depending on what + # was requested. + if dep.type_name in ('LibraryGroup', 'TargetGroup'): + if not traverse_groups: + yield dep + continue + + for res in self.get_required_libraries_for_component(dep, True): + yield res + + def get_fragment_dependencies(self): + """ + get_fragment_dependencies() -> iter + + Compute the list of files (as absolute paths) on which the output + fragments depend (i.e., files for which a modification should trigger a + rebuild of the fragment). + """ + + # Construct a list of all the dependencies of the Makefile fragment + # itself. These include all the LLVMBuild files themselves, as well as + # all of our own sources. + # + # Many components may come from the same file, so we make sure to unique + # these. + build_paths = set() + for ci in self.component_infos: + p = os.path.join(self.source_root, ci.subpath[1:], 'LLVMBuild.txt') + if p not in build_paths: + yield p + build_paths.add(p) + + # Gather the list of necessary sources by just finding all loaded + # modules that are inside the LLVM source tree. + for module in sys.modules.values(): + # Find the module path. + if not hasattr(module, '__file__'): + continue + path = getattr(module, '__file__') + if not path: + continue + + # Strip off any compiled suffix. + if os.path.splitext(path)[1] in ['.pyc', '.pyo', '.pyd']: + path = path[:-1] + + # If the path exists and is in the source tree, consider it a + # dependency. + if (path.startswith(self.source_root) and os.path.exists(path)): + yield path + + def write_cmake_fragment(self, output_path): + """ + write_cmake_fragment(output_path) -> None + + Generate a CMake fragment which includes all of the collated LLVMBuild + information in a format that is easily digestible by a CMake. The exact + contents of this are closely tied to how the CMake configuration + integrates LLVMBuild, see CMakeLists.txt in the top-level. + """ + + dependencies = list(self.get_fragment_dependencies()) + + # Write out the CMake fragment. + make_install_dir(os.path.dirname(output_path)) + f = open(output_path, 'w') + + # Write the header. + header_fmt = '\ +#===-- %s - LLVMBuild Configuration for LLVM %s-*- CMake -*--===#' + header_name = os.path.basename(output_path) + header_pad = '-' * (80 - len(header_fmt % (header_name, ''))) + header_string = header_fmt % (header_name, header_pad) + print >>f, """\ +%s +# +# The LLVM Compiler Infrastructure +# +# This file is distributed under the University of Illinois Open Source +# License. See LICENSE.TXT for details. +# +#===------------------------------------------------------------------------===# +# +# This file contains the LLVMBuild project information in a format easily +# consumed by the CMake based build system. +# +# This file is autogenerated by llvm-build, do not edit! +# +#===------------------------------------------------------------------------===# +""" % header_string + + # Write the dependency information in the best way we can. + print >>f, """ +# LLVMBuild CMake fragment dependencies. +# +# CMake has no builtin way to declare that the configuration depends on +# a particular file. However, a side effect of configure_file is to add +# said input file to CMake's internal dependency list. So, we use that +# and a dummy output file to communicate the dependency information to +# CMake. +# +# FIXME: File a CMake RFE to get a properly supported version of this +# feature.""" + for dep in dependencies: + print >>f, """\ +configure_file(\"%s\" + ${CMAKE_CURRENT_BINARY_DIR}/DummyConfigureOutput)""" % ( + cmake_quote_path(dep),) + + # Write the properties we use to encode the required library dependency + # information in a form CMake can easily use directly. + print >>f, """ +# Explicit library dependency information. +# +# The following property assignments effectively create a map from component +# names to required libraries, in a way that is easily accessed from CMake.""" + for ci in self.ordered_component_infos: + # We only write the information for libraries currently. + if ci.type_name != 'Library': + continue + + print >>f, """\ +set_property(GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_%s %s)""" % ( + ci.get_prefixed_library_name(), " ".join(sorted( + dep.get_prefixed_library_name() + for dep in self.get_required_libraries_for_component(ci)))) + + f.close() + + def write_make_fragment(self, output_path): + """ + write_make_fragment(output_path) -> None + + Generate a Makefile fragment which includes all of the collated + LLVMBuild information in a format that is easily digestible by a + Makefile. The exact contents of this are closely tied to how the LLVM + Makefiles integrate LLVMBuild, see Makefile.rules in the top-level. + """ + + dependencies = list(self.get_fragment_dependencies()) + + # Write out the Makefile fragment. + make_install_dir(os.path.dirname(output_path)) + f = open(output_path, 'w') + + # Write the header. + header_fmt = '\ +#===-- %s - LLVMBuild Configuration for LLVM %s-*- Makefile -*--===#' + header_name = os.path.basename(output_path) + header_pad = '-' * (80 - len(header_fmt % (header_name, ''))) + header_string = header_fmt % (header_name, header_pad) + print >>f, """\ +%s +# +# The LLVM Compiler Infrastructure +# +# This file is distributed under the University of Illinois Open Source +# License. See LICENSE.TXT for details. +# +#===------------------------------------------------------------------------===# +# +# This file contains the LLVMBuild project information in a format easily +# consumed by the Makefile based build system. +# +# This file is autogenerated by llvm-build, do not edit! +# +#===------------------------------------------------------------------------===# +""" % header_string + + # Write the dependencies for the fragment. + # + # FIXME: Technically, we need to properly quote for Make here. + print >>f, """\ +# Clients must explicitly enable LLVMBUILD_INCLUDE_DEPENDENCIES to get +# these dependencies. This is a compromise to help improve the +# performance of recursive Make systems.""" + print >>f, 'ifeq ($(LLVMBUILD_INCLUDE_DEPENDENCIES),1)' + print >>f, "# The dependencies for this Makefile fragment itself." + print >>f, "%s: \\" % (mk_quote_string_for_target(output_path),) + for dep in dependencies: + print >>f, "\t%s \\" % (dep,) + print >>f + + # Generate dummy rules for each of the dependencies, so that things + # continue to work correctly if any of those files are moved or removed. + print >>f, """\ +# The dummy targets to allow proper regeneration even when files are moved or +# removed.""" + for dep in dependencies: + print >>f, "%s:" % (mk_quote_string_for_target(dep),) + print >>f, 'endif' + + f.close() + +def add_magic_target_components(parser, project, opts): + """add_magic_target_components(project, opts) -> None + + Add the "magic" target based components to the project, which can only be + determined based on the target configuration options. + + This currently is responsible for populating the required_libraries list of + the "all-targets", "Native", "NativeCodeGen", and "Engine" components. + """ + + # Determine the available targets. + available_targets = dict((ci.name,ci) + for ci in project.component_infos + if ci.type_name == 'TargetGroup') + + # Find the configured native target. + + # We handle a few special cases of target names here for historical + # reasons, as these are the names configure currently comes up with. + native_target_name = { 'x86' : 'X86', + 'x86_64' : 'X86', + 'Unknown' : None }.get(opts.native_target, + opts.native_target) + if native_target_name is None: + native_target = None + else: + native_target = available_targets.get(native_target_name) + if native_target is None: + parser.error("invalid native target: %r (not in project)" % ( + opts.native_target,)) + if native_target.type_name != 'TargetGroup': + parser.error("invalid native target: %r (not a target)" % ( + opts.native_target,)) + + # Find the list of targets to enable. + if opts.enable_targets is None: + enable_targets = available_targets.values() + else: + # We support both space separated and semi-colon separated lists. + if ' ' in opts.enable_targets: + enable_target_names = opts.enable_targets.split() + else: + enable_target_names = opts.enable_targets.split(';') + + enable_targets = [] + for name in enable_target_names: + target = available_targets.get(name) + if target is None: + parser.error("invalid target to enable: %r (not in project)" % ( + name,)) + if target.type_name != 'TargetGroup': + parser.error("invalid target to enable: %r (not a target)" % ( + name,)) + enable_targets.append(target) + + # Find the special library groups we are going to populate. We enforce that + # these appear in the project (instead of just adding them) so that they at + # least have an explicit representation in the project LLVMBuild files (and + # comments explaining how they are populated). + def find_special_group(name): + info = info_map.get(name) + if info is None: + fatal("expected project to contain special %r component" % ( + name,)) + + if info.type_name != 'LibraryGroup': + fatal("special component %r should be a LibraryGroup" % ( + name,)) + + if info.required_libraries: + fatal("special component %r must have empty %r list" % ( + name, 'required_libraries')) + if info.add_to_library_groups: + fatal("special component %r must have empty %r list" % ( + name, 'add_to_library_groups')) + + info._is_special_group = True + return info + + info_map = dict((ci.name, ci) for ci in project.component_infos) + all_targets = find_special_group('all-targets') + native_group = find_special_group('Native') + native_codegen_group = find_special_group('NativeCodeGen') + engine_group = find_special_group('Engine') + + # Set the enabled bit in all the target groups, and append to the + # all-targets list. + for ci in enable_targets: + all_targets.required_libraries.append(ci.name) + ci.enabled = True + + # If we have a native target, then that defines the native and + # native_codegen libraries. + if native_target and native_target.enabled: + native_group.required_libraries.append(native_target.name) + native_codegen_group.required_libraries.append( + '%sCodeGen' % native_target.name) + + # If we have a native target with a JIT, use that for the engine. Otherwise, + # use the interpreter. + if native_target and native_target.enabled and native_target.has_jit: + engine_group.required_libraries.append('JIT') + engine_group.required_libraries.append(native_group.name) + else: + engine_group.required_libraries.append('Interpreter') + +def main(): + from optparse import OptionParser, OptionGroup + parser = OptionParser("usage: %prog [options]") + + group = OptionGroup(parser, "Input Options") + group.add_option("", "--source-root", dest="source_root", metavar="PATH", + help="Path to the LLVM source (inferred if not given)", + action="store", default=None) + group.add_option("", "--llvmbuild-source-root", + dest="llvmbuild_source_root", + help=( + "If given, an alternate path to search for LLVMBuild.txt files"), + action="store", default=None, metavar="PATH") + group.add_option("", "--build-root", dest="build_root", metavar="PATH", + help="Path to the build directory (if needed) [%default]", + action="store", default=None) + parser.add_option_group(group) + + group = OptionGroup(parser, "Output Options") + group.add_option("", "--print-tree", dest="print_tree", + help="Print out the project component tree [%default]", + action="store_true", default=False) + group.add_option("", "--write-llvmbuild", dest="write_llvmbuild", + help="Write out the LLVMBuild.txt files to PATH", + action="store", default=None, metavar="PATH") + group.add_option("", "--write-library-table", + dest="write_library_table", metavar="PATH", + help="Write the C++ library dependency table to PATH", + action="store", default=None) + group.add_option("", "--write-cmake-fragment", + dest="write_cmake_fragment", metavar="PATH", + help="Write the CMake project information to PATH", + action="store", default=None) + group.add_option("", "--write-make-fragment", + dest="write_make_fragment", metavar="PATH", + help="Write the Makefile project information to PATH", + action="store", default=None) + group.add_option("", "--configure-target-def-file", + dest="configure_target_def_files", + help="""Configure the given file at SUBPATH (relative to +the inferred or given source root, and with a '.in' suffix) by replacing certain +substitution variables with lists of targets that support certain features (for +example, targets with AsmPrinters) and write the result to the build root (as +given by --build-root) at the same SUBPATH""", + metavar="SUBPATH", action="append", default=None) + parser.add_option_group(group) + + group = OptionGroup(parser, "Configuration Options") + group.add_option("", "--native-target", + dest="native_target", metavar="NAME", + help=("Treat the named target as the 'native' one, if " + "given [%default]"), + action="store", default=None) + group.add_option("", "--enable-targets", + dest="enable_targets", metavar="NAMES", + help=("Enable the given space or semi-colon separated " + "list of targets, or all targets if not present"), + action="store", default=None) + parser.add_option_group(group) + + (opts, args) = parser.parse_args() + + # Determine the LLVM source path, if not given. + source_root = opts.source_root + if source_root: + if not os.path.exists(os.path.join(source_root, 'lib', 'VMCore', + 'Function.cpp')): + parser.error('invalid LLVM source root: %r' % source_root) + else: + llvmbuild_path = os.path.dirname(__file__) + llvm_build_path = os.path.dirname(llvmbuild_path) + utils_path = os.path.dirname(llvm_build_path) + source_root = os.path.dirname(utils_path) + if not os.path.exists(os.path.join(source_root, 'lib', 'VMCore', + 'Function.cpp')): + parser.error('unable to infer LLVM source root, please specify') + + # Construct the LLVM project information. + llvmbuild_source_root = opts.llvmbuild_source_root or source_root + project_info = LLVMProjectInfo.load_from_path( + source_root, llvmbuild_source_root) + + # Add the magic target based components. + add_magic_target_components(parser, project_info, opts) + + # Validate the project component info. + project_info.validate_components() + + # Print the component tree, if requested. + if opts.print_tree: + project_info.print_tree() + + # Write out the components, if requested. This is useful for auto-upgrading + # the schema. + if opts.write_llvmbuild: + project_info.write_components(opts.write_llvmbuild) + + # Write out the required library table, if requested. + if opts.write_library_table: + project_info.write_library_table(opts.write_library_table) + + # Write out the make fragment, if requested. + if opts.write_make_fragment: + project_info.write_make_fragment(opts.write_make_fragment) + + # Write out the cmake fragment, if requested. + if opts.write_cmake_fragment: + project_info.write_cmake_fragment(opts.write_cmake_fragment) + + # Configure target definition files, if requested. + if opts.configure_target_def_files: + # Verify we were given a build root. + if not opts.build_root: + parser.error("must specify --build-root when using " + "--configure-target-def-file") + + # Create the substitution list. + available_targets = [ci for ci in project_info.component_infos + if ci.type_name == 'TargetGroup'] + substitutions = [ + ("@LLVM_ENUM_TARGETS@", + ' '.join('LLVM_TARGET(%s)' % ci.name + for ci in available_targets)), + ("@LLVM_ENUM_ASM_PRINTERS@", + ' '.join('LLVM_ASM_PRINTER(%s)' % ci.name + for ci in available_targets + if ci.has_asmprinter)), + ("@LLVM_ENUM_ASM_PARSERS@", + ' '.join('LLVM_ASM_PARSER(%s)' % ci.name + for ci in available_targets + if ci.has_asmparser)), + ("@LLVM_ENUM_DISASSEMBLERS@", + ' '.join('LLVM_DISASSEMBLER(%s)' % ci.name + for ci in available_targets + if ci.has_disassembler))] + + # Configure the given files. + for subpath in opts.configure_target_def_files: + inpath = os.path.join(source_root, subpath + '.in') + outpath = os.path.join(opts.build_root, subpath) + result = configutil.configure_file(inpath, outpath, substitutions) + if not result: + note("configured file %r hasn't changed" % outpath) + +if __name__=='__main__': + main() |
