Source code for waflib.Tools.fc

#! /usr/bin/env python
# encoding: utf-8
# DC 2008
# Thomas Nagy 2016-2018 (ita)

Fortran support

from waflib import Utils, Task, Errors
from waflib.Tools import ccroot, fc_config, fc_scan
from waflib.TaskGen import extension
from waflib.Configure import conf

ccroot.USELIB_VARS['fcprogram_test'] = ccroot.USELIB_VARS['fcprogram'] = set(['LIB', 'STLIB', 'LIBPATH', 'STLIBPATH', 'LINKFLAGS', 'RPATH', 'LINKDEPS', 'LDFLAGS'])
ccroot.USELIB_VARS['fcstlib'] = set(['ARFLAGS', 'LINKDEPS'])

[docs]@extension('.f','.F','.f90','.F90','.for','.FOR','.f95','.F95','.f03','.F03','.f08','.F08') def fc_hook(self, node): "Binds the Fortran file extensions create :py:class:`waflib.Tools.fc.fc` instances" return self.create_compiled_task('fc', node)
[docs]@conf def modfile(conf, name): """ Turns a module name into the right module file name. Defaults to all lower case. """ if name.find(':') >= 0: # Depending on a submodule! separator = conf.env.FC_SUBMOD_SEPARATOR or '@' # Ancestors of the submodule will be prefixed to the # submodule name, separated by a colon. modpath = name.split(':') # Only the ancestor (actual) module and the submodule name # will be used for the filename. modname = modpath[0] + separator + modpath[-1] suffix = conf.env.FC_SUBMOD_SUFFIX or '.smod' else: modname = name suffix = '.mod' return {'lower' :modname.lower() + suffix.lower(), 'lower.MOD' :modname.lower() + suffix.upper(), 'UPPER.mod' :modname.upper() + suffix.lower(), 'UPPER' :modname.upper() + suffix.upper()}[conf.env.FC_MOD_CAPITALIZATION or 'lower']
[docs]def get_fortran_tasks(tsk): """ Obtains all fortran tasks from the same build group. Those tasks must not have the attribute 'nomod' or 'mod_fortran_done' :return: a list of :py:class:`waflib.Tools.fc.fc` instances """ bld = tsk.generator.bld tasks = bld.get_tasks_group(bld.get_group_idx(tsk.generator)) return [x for x in tasks if isinstance(x, fc) and not getattr(x, 'nomod', None) and not getattr(x, 'mod_fortran_done', None)]
[docs]class fc(Task.Task): """ Fortran tasks can only run when all fortran tasks in a current task group are ready to be executed This may cause a deadlock if some fortran task is waiting for something that cannot happen (circular dependency) Should this ever happen, set the 'nomod=True' on those tasks instances to break the loop """ color = 'GREEN' run_str = '${FC} ${FCFLAGS} ${FCINCPATH_ST:INCPATHS} ${FCDEFINES_ST:DEFINES} ${_FCMODOUTFLAGS} ${FC_TGT_F}${TGT[0].abspath()} ${FC_SRC_F}${SRC[0].abspath()} ${FCPPFLAGS}' vars = ["FORTRANMODPATHFLAG"]
[docs] def scan(self): """Fortran dependency scanner""" tmp = fc_scan.fortran_parser(self.generator.includes_nodes) tmp.task = self tmp.start(self.inputs[0]) return (tmp.nodes, tmp.names)
[docs] def runnable_status(self): """ Sets the mod file outputs and the dependencies on the mod files over all Fortran tasks executed by the main thread so there are no concurrency issues """ if getattr(self, 'mod_fortran_done', None): return super(fc, self).runnable_status() # now, if we reach this part it is because this fortran task is the first in the list bld = self.generator.bld # obtain the fortran tasks lst = get_fortran_tasks(self) # disable this method for other tasks for tsk in lst: tsk.mod_fortran_done = True # wait for all the .f tasks to be ready for execution # and ensure that the scanners are called at least once for tsk in lst: ret = tsk.runnable_status() if ret == Task.ASK_LATER: # we have to wait for one of the other fortran tasks to be ready # this may deadlock if there are dependencies between fortran tasks # but this should not happen (we are setting them here!) for x in lst: x.mod_fortran_done = None return Task.ASK_LATER ins = Utils.defaultdict(set) outs = Utils.defaultdict(set) # the .mod files to create for tsk in lst: key = tsk.uid() for x in bld.raw_deps[key]: if x.startswith('MOD@'): name = bld.modfile(x.replace('MOD@', '')) node = bld.srcnode.find_or_declare(name) tsk.set_outputs(node) outs[node].add(tsk) # the .mod files to use for tsk in lst: key = tsk.uid() for x in bld.raw_deps[key]: if x.startswith('USE@'): name = bld.modfile(x.replace('USE@', '')) node = bld.srcnode.find_resource(name) if node and node not in tsk.outputs: if not node in bld.node_deps[key]: bld.node_deps[key].append(node) ins[node].add(tsk) # if the intersection matches, set the order for k in ins.keys(): for a in ins[k]: a.run_after.update(outs[k]) for x in outs[k]: self.generator.bld.producer.revdeps[x].add(a) # the scanner cannot output nodes, so we have to set them # ourselves as task.dep_nodes (additional input nodes) tmp = [] for t in outs[k]: tmp.extend(t.outputs) a.dep_nodes.extend(tmp) a.dep_nodes.sort(key=lambda x: x.abspath()) # the task objects have changed: clear the signature cache for tsk in lst: try: delattr(tsk, 'cache_sig') except AttributeError: pass return super(fc, self).runnable_status()
[docs]class fcprogram(ccroot.link_task): """Links Fortran programs""" color = 'YELLOW' run_str = '${FC} ${LINKFLAGS} ${FCLNK_SRC_F}${SRC} ${FCLNK_TGT_F}${TGT[0].abspath()} ${RPATH_ST:RPATH} ${FCSTLIB_MARKER} ${FCSTLIBPATH_ST:STLIBPATH} ${FCSTLIB_ST:STLIB} ${FCSHLIB_MARKER} ${FCLIBPATH_ST:LIBPATH} ${FCLIB_ST:LIB} ${LDFLAGS}' inst_to = '${BINDIR}'
[docs]class fcshlib(fcprogram): """Links Fortran libraries""" inst_to = '${LIBDIR}'
[docs]class fcstlib(ccroot.stlink_task): """Links Fortran static libraries (uses ar by default)""" pass # do not remove the pass statement
[docs]class fcprogram_test(fcprogram): """Custom link task to obtain compiler outputs for Fortran configuration tests"""
[docs] def runnable_status(self): """This task is always executed""" ret = super(fcprogram_test, self).runnable_status() if ret == Task.SKIP_ME: ret = Task.RUN_ME return ret
[docs] def exec_command(self, cmd, **kw): """Stores the compiler std our/err onto the build context, to bld.out + bld.err""" bld = self.generator.bld kw['shell'] = isinstance(cmd, str) kw['stdout'] = kw['stderr'] = Utils.subprocess.PIPE kw['cwd'] = self.get_cwd() bld.out = bld.err = '' bld.to_log('command: %s\n' % cmd) kw['output'] = 0 try: (bld.out, bld.err) = bld.cmd_and_log(cmd, **kw) except Errors.WafError: return -1 if bld.out: bld.to_log('out: %s\n' % bld.out) if bld.err: bld.to_log('err: %s\n' % bld.err)