def createMakeVar(target, var, makevar, hints=''):
"""Creates make variable called 'makevar' with same value as 'var' and
returns reference to it in the form of $(makevar)."""
tg = mk.targets[target]
mk.setVar('%s_%s' % (safeMakefileValue(target.upper()), makevar),
"$(ref('%s','%s'))" % (var, target),
target=tg, makevar=1, hints=hints)
return '$(%s_%s)' % (safeMakefileValue(target.upper()), makevar)
def purgeConstantCondVars():
"""Removes conditional variables that have same value regardless of the
condition."""
# NB: We can't simply remove cond vars that have all their values same
# because there is always implicit value '' if none of the conditions
# is met. So we can only remove conditional variable in one of these
# two cases:
# 1) All values are same and equal to ''.
# 2) All values are same and disjunction of the conditions is
# tautology. This is not easy to detect and probably not worth
# the effort, so we don't do it (yet?) [FIXME]
if config.verbose:
sys.stdout.write('purging empty conditional variables')
sys.stdout.flush()
toDel = []
for c in mk.cond_vars:
cv = mk.cond_vars[c]
if len(cv.values) == 0:
toDel.append((c, ''))
else:
val = cv.values[0].value
if val != '': continue
purge = 1
for v in cv.values[1:]:
if v.value != val:
purge = 0
break
if purge: toDel.append((c,val))
if config.verbose:
sys.stdout.write(': %i of %i\n' % (len(toDel), len(mk.cond_vars)))
for c, val in toDel:
t = mk.cond_vars[c].target
del mk.cond_vars[c]
mk.setVar(c, val, target=t)
return len(toDel) > 0
def purgeConstantCondVars():
"""Removes conditional variables that have same value regardless of the
condition."""
# NB: We can't simply remove cond vars that have all their values same
# because there is always implicit value '' if none of the conditions
# is met. So we can only remove conditional variable in one of these
# two cases:
# 1) All values are same and equal to ''.
# 2) All values are same and disjunction of the conditions is
# tautology. This is not easy to detect and probably not worth
# the effort, so we don't do it (yet?) [FIXME]
if config.verbose:
sys.stdout.write('purging empty conditional variables')
sys.stdout.flush()
toDel = []
for c in mk.cond_vars:
cv = mk.cond_vars[c]
if len(cv.values) == 0:
toDel.append((c, ''))
else:
val = cv.values[0].value
if val != '': continue
purge = 1
for v in cv.values[1:]:
if v.value != val:
purge = 0
break
if purge: toDel.append((c,val))
if config.verbose:
sys.stdout.write(': %i of %i\n' % (len(toDel), len(mk.cond_vars)))
for c, val in toDel:
t = mk.cond_vars[c].target
del mk.cond_vars[c]
mk.setVar(c, val, target=t)
return len(toDel) > 0
def loadModule(m):
if m in loadedModules:
return
if config.verbose: print "loading module '%s'..." % m
loadedModules.append(m)
# set USING_<MODULENAME> variable:
mk.setVar('USING_%s' % m.upper(), '1')
# import module's py utilities:
imported = mk.importPyModule(m)
# include module-specific makefiles:
global availableFiles
for f in availableFiles:
if m in f.modules:
f.modules.remove(m)
if len(f.modules) == 0:
processFile(f.file)
imported = True
availableFiles = [f for f in availableFiles if len(f.modules)>0]
if not imported:
raise ReaderError(None, "unknown module '%s'" % m)
def loadModule(m):
if m in loadedModules:
return
if config.verbose: print "loading module '%s'..." % m
loadedModules.append(m)
# set USING_<MODULENAME> variable:
mk.setVar('USING_%s' % m.upper(), '1')
# import module's py utilities:
imported = mk.importPyModule(m)
# include module-specific makefiles:
global availableFiles
for f in availableFiles:
if m in f.modules:
f.modules.remove(m)
if len(f.modules) == 0:
processFile(f.file)
imported = True
availableFiles = [f for f in availableFiles if len(f.modules) > 0]
if not imported:
raise ReaderError(None, "unknown module '%s'" % m)
def handleSet(e, target=None, add_dict=None):
try:
errors.pushCtx("in <set> at %s" % e.location())
name = basename = evalConstExpr(e, e.props['var'], target)
if (name in mk.override_vars) and target == None:
return # can't change value of variable overriden with -D=xxx
doEval = not ('eval' in e.props and e.props['eval'] == '0')
overwrite = not ('overwrite' in e.props and e.props['overwrite'] == '0')
isCond = (len(e.children) > 0)
isMakeVar = 'make_var' in e.props and e.props['make_var'] == '1'
value = e.value
if 'hints' in e.props:
hints = e.props['hints']
else:
hints = ''
# Handle conditions:
if isCond:
if e.value:
raise ReaderError(e, "cannot set unconditional value when <if> is used")
noValueSet = 1
for e_if in e.children:
try:
errors.pushCtx(e_if)
if e_if.name != 'if':
raise ReaderError(e_if, "malformed <set> command")
# Preprocess always true or always false conditions:
condstr = evalConstExpr(e_if, e_if.props['cond'],
target=target, add_dict=add_dict)
condstr = translateSpecialCondition(e_if, condstr, target)
typ = mk.evalCondition(condstr)
# Condition never met when generating this target:
if typ == '0':
if config.debug:
print "[dbg] removing never-met condition '%s' for variable '%s'" % (condstr, name)
continue
# Condition always met:
elif typ == '1':
if config.debug:
print "[dbg] condition '%s' for variable '%s' is always met" % (condstr, name)
noValueSet = 0
isCond = 0
value = e_if.value
break
elif typ != None:
raise ReaderError(e, "malformed condition '%s': doesn't evaluate to boolean value" % condstr)
cond = mk.makeCondition(condstr)
noValueSet = 0
# Real conditions:
checkConditionsSupport(e)
if 'scope' in e.props:
raise ReaderError(e, "conditional variable can't have nondefault scope ('%s')" % e.props['scope'])
if target != None:
if (not overwrite) and (name in target.vars):
return
name = '__%s_%s' % (target.id.replace('-','_').replace('.','_').replace('/','_'),
basename)
mk.setVar(e.props['var'], '$(%s)' % name,
eval=0, target=target,
add_dict=add_dict, hints=hints)
if cond == None:
raise ReaderError(e, "malformed condition: '%s': must be constant expression, equality test or conjunction of them" % condstr)
if name in mk.cond_vars:
if not overwrite:
return
var = mk.cond_vars[name]
else:
var = mk.CondVar(name, target)
mk.addCondVar(var, hints)
if doEval:
value = mk.evalExpr(e_if.value,target=target,add_dict=add_dict)
else:
value = e_if.value
var.add(cond, value)
finally:
errors.popCtx()
if noValueSet:
isCond = 0
value = ''
if isCond:
return
# Non-conditional variables:
if value == None: value = ''
if 'append' in e.props and e.props['append'] == '1':
doAppend = 1
else:
doAppend = 0
if 'prepend' in e.props and e.props['prepend'] == '1':
doPrepend = 1
else:
doPrepend = 0
store_in = None
if 'scope' in e.props:
sc = evalConstExpr(e, e.props['scope'], target=target)
if sc == 'local':
pass
elif sc == 'global':
store_in = mk.vars
else:
if sc in mk.targets:
store_in = mk.targets[sc].vars
else:
raise ReaderError(e, "invalid scope '%s': must be 'global', 'local' or target name" % sc)
if isMakeVar:
if doAppend or store_in != None or not doEval:
raise ReaderError(e, "make variable (%s) can't be appended or stored in nondefault scope or not evaluated" % name)
mk.setVar(name, value, eval=doEval, target=target,
add_dict=add_dict, store_in=store_in,
append=doAppend, prepend=doPrepend, overwrite=overwrite,
makevar=isMakeVar, hints=hints)
finally:
errors.popCtx()
def setOverrideVars():
for v in config.defines:
mk.setVar(v, config.defines[v])
mk.override_vars[v] = config.defines[v]
def setStdVars(filename):
mk.setVar('LF', '\n')
mk.setVar('TAB', '\t')
mk.setVar('SPACE', '$(" ")', eval=0)
mk.setVar('DOLLAR', '$')
mk.setVar('INPUT_FILE', os.path.abspath(filename))
mk.setVar('INPUT_FILE_ARG', filename)
mk.setVar('OUTPUT_FILE', config.output_file)
mk.setVar('FORMAT', config.format)
def handleSet(e, target=None, add_dict=None):
try:
errors.pushCtx("in <set> at %s" % e.location())
name = basename = evalConstExpr(e, e.props['var'], target)
if (name in mk.override_vars) and target == None:
return # can't change value of variable overriden with -D=xxx
doEval = not ('eval' in e.props and e.props['eval'] == '0')
overwrite = not ('overwrite' in e.props
and e.props['overwrite'] == '0')
isCond = (len(e.children) > 0)
isMakeVar = 'make_var' in e.props and e.props['make_var'] == '1'
value = e.value
if 'hints' in e.props:
hints = e.props['hints']
else:
hints = ''
# Handle conditions:
if isCond:
if e.value:
raise ReaderError(
e, "cannot set unconditional value when <if> is used")
noValueSet = 1
for e_if in e.children:
try:
errors.pushCtx(e_if)
if e_if.name != 'if':
raise ReaderError(e_if, "malformed <set> command")
# Preprocess always true or always false conditions:
condstr = evalConstExpr(e_if,
e_if.props['cond'],
target=target,
add_dict=add_dict)
condstr = translateSpecialCondition(e_if, condstr, target)
typ = mk.evalCondition(condstr)
# Condition never met when generating this target:
if typ == '0':
if config.debug:
print "[dbg] removing never-met condition '%s' for variable '%s'" % (
condstr, name)
continue
# Condition always met:
elif typ == '1':
if config.debug:
print "[dbg] condition '%s' for variable '%s' is always met" % (
condstr, name)
noValueSet = 0
isCond = 0
value = e_if.value
break
elif typ != None:
raise ReaderError(
e,
"malformed condition '%s': doesn't evaluate to boolean value"
% condstr)
cond = mk.makeCondition(condstr)
noValueSet = 0
# Real conditions:
checkConditionsSupport(e)
if 'scope' in e.props:
raise ReaderError(
e,
"conditional variable can't have nondefault scope ('%s')"
% e.props['scope'])
if target != None:
if (not overwrite) and (name in target.vars):
return
name = '__%s_%s' % (target.id.replace(
'-', '_').replace('.', '_').replace('/',
'_'), basename)
mk.setVar(e.props['var'],
'$(%s)' % name,
eval=0,
target=target,
add_dict=add_dict,
hints=hints)
if cond == None:
raise ReaderError(
e,
"malformed condition: '%s': must be constant expression, equality test or conjunction of them"
% condstr)
if name in mk.cond_vars:
if not overwrite:
return
var = mk.cond_vars[name]
else:
var = mk.CondVar(name, target)
mk.addCondVar(var, hints)
if doEval:
value = mk.evalExpr(e_if.value,
target=target,
add_dict=add_dict)
else:
value = e_if.value
var.add(cond, value)
finally:
errors.popCtx()
if noValueSet:
isCond = 0
value = ''
if isCond:
return
# Non-conditional variables:
if value == None: value = ''
if 'append' in e.props and e.props['append'] == '1':
doAppend = 1
else:
doAppend = 0
if 'prepend' in e.props and e.props['prepend'] == '1':
doPrepend = 1
else:
doPrepend = 0
store_in = None
if 'scope' in e.props:
sc = evalConstExpr(e, e.props['scope'], target=target)
if sc == 'local':
pass
elif sc == 'global':
store_in = mk.vars
else:
if sc in mk.targets:
store_in = mk.targets[sc].vars
else:
raise ReaderError(
e,
"invalid scope '%s': must be 'global', 'local' or target name"
% sc)
if isMakeVar:
if doAppend or store_in != None or not doEval:
raise ReaderError(
e,
"make variable (%s) can't be appended or stored in nondefault scope or not evaluated"
% name)
mk.setVar(name,
value,
eval=doEval,
target=target,
add_dict=add_dict,
store_in=store_in,
append=doAppend,
prepend=doPrepend,
overwrite=overwrite,
makevar=isMakeVar,
hints=hints)
finally:
errors.popCtx()
def setOverrideVars():
for v in config.defines:
mk.setVar(v, config.defines[v])
mk.override_vars[v] = config.defines[v]
def setStdVars(filename):
mk.setVar('LF', '\n')
mk.setVar('TAB', '\t')
mk.setVar('SPACE', '$(" ")', eval=0)
mk.setVar('DOLLAR', '$')
mk.setVar('INPUT_FILE', os.path.abspath(filename))
mk.setVar('INPUT_FILE_ARG', filename)
mk.setVar('OUTPUT_FILE', config.output_file)
mk.setVar('FORMAT', config.format)
