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Diffstat (limited to 'extras/gccdeps.py')
| -rw-r--r-- | extras/gccdeps.py | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/extras/gccdeps.py b/extras/gccdeps.py deleted file mode 100644 index d9758ab..0000000 --- a/extras/gccdeps.py +++ /dev/null @@ -1,214 +0,0 @@ -#!/usr/bin/env python -# encoding: utf-8 -# Thomas Nagy, 2008-2010 (ita) - -""" -Execute the tasks with gcc -MD, read the dependencies from the .d file -and prepare the dependency calculation for the next run. -This affects the cxx class, so make sure to load Qt5 after this tool. - -Usage:: - - def options(opt): - opt.load('compiler_cxx') - def configure(conf): - conf.load('compiler_cxx gccdeps') -""" - -import os, re, threading -from waflib import Task, Logs, Utils, Errors -from waflib.Tools import c_preproc -from waflib.TaskGen import before_method, feature - -lock = threading.Lock() - -gccdeps_flags = ['-MD'] -if not c_preproc.go_absolute: - gccdeps_flags = ['-MMD'] - -# Third-party tools are allowed to add extra names in here with append() -supported_compilers = ['gcc', 'icc', 'clang'] - -def scan(self): - if not self.__class__.__name__ in self.env.ENABLE_GCCDEPS: - return super(self.derived_gccdeps, self).scan() - nodes = self.generator.bld.node_deps.get(self.uid(), []) - names = [] - return (nodes, names) - -re_o = re.compile("\.o$") -re_splitter = re.compile(r'(?<!\\)\s+') # split by space, except when spaces are escaped - -def remove_makefile_rule_lhs(line): - # Splitting on a plain colon would accidentally match inside a - # Windows absolute-path filename, so we must search for a colon - # followed by whitespace to find the divider between LHS and RHS - # of the Makefile rule. - rulesep = ': ' - - sep_idx = line.find(rulesep) - if sep_idx >= 0: - return line[sep_idx + 2:] - else: - return line - -def path_to_node(base_node, path, cached_nodes): - # Take the base node and the path and return a node - # Results are cached because searching the node tree is expensive - # The following code is executed by threads, it is not safe, so a lock is needed... - if getattr(path, '__hash__'): - node_lookup_key = (base_node, path) - else: - # Not hashable, assume it is a list and join into a string - node_lookup_key = (base_node, os.path.sep.join(path)) - try: - lock.acquire() - node = cached_nodes[node_lookup_key] - except KeyError: - node = base_node.find_resource(path) - cached_nodes[node_lookup_key] = node - finally: - lock.release() - return node - -def post_run(self): - if not self.__class__.__name__ in self.env.ENABLE_GCCDEPS: - return super(self.derived_gccdeps, self).post_run() - - name = self.outputs[0].abspath() - name = re_o.sub('.d', name) - try: - txt = Utils.readf(name) - except EnvironmentError: - Logs.error('Could not find a .d dependency file, are cflags/cxxflags overwritten?') - raise - #os.remove(name) - - # Compilers have the choice to either output the file's dependencies - # as one large Makefile rule: - # - # /path/to/file.o: /path/to/dep1.h \ - # /path/to/dep2.h \ - # /path/to/dep3.h \ - # ... - # - # or as many individual rules: - # - # /path/to/file.o: /path/to/dep1.h - # /path/to/file.o: /path/to/dep2.h - # /path/to/file.o: /path/to/dep3.h - # ... - # - # So the first step is to sanitize the input by stripping out the left- - # hand side of all these lines. After that, whatever remains are the - # implicit dependencies of task.outputs[0] - txt = '\n'.join([remove_makefile_rule_lhs(line) for line in txt.splitlines()]) - - # Now join all the lines together - txt = txt.replace('\\\n', '') - - val = txt.strip() - val = [x.replace('\\ ', ' ') for x in re_splitter.split(val) if x] - - nodes = [] - bld = self.generator.bld - - # Dynamically bind to the cache - try: - cached_nodes = bld.cached_nodes - except AttributeError: - cached_nodes = bld.cached_nodes = {} - - for x in val: - - node = None - if os.path.isabs(x): - node = path_to_node(bld.root, x, cached_nodes) - else: - # TODO waf 1.9 - single cwd value - path = getattr(bld, 'cwdx', bld.bldnode) - # when calling find_resource, make sure the path does not contain '..' - x = [k for k in Utils.split_path(x) if k and k != '.'] - while '..' in x: - idx = x.index('..') - if idx == 0: - x = x[1:] - path = path.parent - else: - del x[idx] - del x[idx-1] - - node = path_to_node(path, x, cached_nodes) - - if not node: - raise ValueError('could not find %r for %r' % (x, self)) - if id(node) == id(self.inputs[0]): - # ignore the source file, it is already in the dependencies - # this way, successful config tests may be retrieved from the cache - continue - nodes.append(node) - - Logs.debug('deps: gccdeps for %s returned %s', self, nodes) - - bld.node_deps[self.uid()] = nodes - bld.raw_deps[self.uid()] = [] - - try: - del self.cache_sig - except AttributeError: - pass - - Task.Task.post_run(self) - -def sig_implicit_deps(self): - if not self.__class__.__name__ in self.env.ENABLE_GCCDEPS: - return super(self.derived_gccdeps, self).sig_implicit_deps() - try: - return Task.Task.sig_implicit_deps(self) - except Errors.WafError: - return Utils.SIG_NIL - -def wrap_compiled_task(classname): - derived_class = type(classname, (Task.classes[classname],), {}) - derived_class.derived_gccdeps = derived_class - derived_class.post_run = post_run - derived_class.scan = scan - derived_class.sig_implicit_deps = sig_implicit_deps - -for k in ('c', 'cxx'): - if k in Task.classes: - wrap_compiled_task(k) - -@before_method('process_source') -@feature('force_gccdeps') -def force_gccdeps(self): - self.env.ENABLE_GCCDEPS = ['c', 'cxx'] - -def configure(conf): - # in case someone provides a --enable-gccdeps command-line option - if not getattr(conf.options, 'enable_gccdeps', True): - return - - global gccdeps_flags - flags = conf.env.GCCDEPS_FLAGS or gccdeps_flags - if conf.env.CC_NAME in supported_compilers: - try: - conf.check(fragment='int main() { return 0; }', features='c force_gccdeps', cflags=flags, msg='Checking for c flags %r' % ''.join(flags)) - except Errors.ConfigurationError: - pass - else: - conf.env.append_value('CFLAGS', gccdeps_flags) - conf.env.append_unique('ENABLE_GCCDEPS', 'c') - - if conf.env.CXX_NAME in supported_compilers: - try: - conf.check(fragment='int main() { return 0; }', features='cxx force_gccdeps', cxxflags=flags, msg='Checking for cxx flags %r' % ''.join(flags)) - except Errors.ConfigurationError: - pass - else: - conf.env.append_value('CXXFLAGS', gccdeps_flags) - conf.env.append_unique('ENABLE_GCCDEPS', 'cxx') - -def options(opt): - raise ValueError('Do not load gccdeps options') - |