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author | Dave Cobbley <david.j.cobbley@linux.intel.com> | 2018-08-14 20:05:37 +0300 |
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committer | Brad Bishop <bradleyb@fuzziesquirrel.com> | 2018-08-23 04:26:31 +0300 |
commit | eb8dc40360f0cfef56fb6947cc817a547d6d9bc6 (patch) | |
tree | de291a73dc37168da6370e2cf16c347d1eba9df8 /poky/bitbake/lib/bb/parse/ast.py | |
parent | 9c3cf826d853102535ead04cebc2d6023eff3032 (diff) | |
download | openbmc-eb8dc40360f0cfef56fb6947cc817a547d6d9bc6.tar.xz |
[Subtree] Removing import-layers directory
As part of the move to subtrees, need to bring all the import layers
content to the top level.
Change-Id: I4a163d10898cbc6e11c27f776f60e1a470049d8f
Signed-off-by: Dave Cobbley <david.j.cobbley@linux.intel.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Diffstat (limited to 'poky/bitbake/lib/bb/parse/ast.py')
-rw-r--r-- | poky/bitbake/lib/bb/parse/ast.py | 442 |
1 files changed, 442 insertions, 0 deletions
diff --git a/poky/bitbake/lib/bb/parse/ast.py b/poky/bitbake/lib/bb/parse/ast.py new file mode 100644 index 000000000..6690dc51c --- /dev/null +++ b/poky/bitbake/lib/bb/parse/ast.py @@ -0,0 +1,442 @@ +# ex:ts=4:sw=4:sts=4:et +# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- +""" + AbstractSyntaxTree classes for the Bitbake language +""" + +# Copyright (C) 2003, 2004 Chris Larson +# Copyright (C) 2003, 2004 Phil Blundell +# Copyright (C) 2009 Holger Hans Peter Freyther +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + + +import re +import string +import logging +import bb +import itertools +from bb import methodpool +from bb.parse import logger + +class StatementGroup(list): + def eval(self, data): + for statement in self: + statement.eval(data) + +class AstNode(object): + def __init__(self, filename, lineno): + self.filename = filename + self.lineno = lineno + +class IncludeNode(AstNode): + def __init__(self, filename, lineno, what_file, force): + AstNode.__init__(self, filename, lineno) + self.what_file = what_file + self.force = force + + def eval(self, data): + """ + Include the file and evaluate the statements + """ + s = data.expand(self.what_file) + logger.debug(2, "CONF %s:%s: including %s", self.filename, self.lineno, s) + + # TODO: Cache those includes... maybe not here though + if self.force: + bb.parse.ConfHandler.include(self.filename, s, self.lineno, data, "include required") + else: + bb.parse.ConfHandler.include(self.filename, s, self.lineno, data, False) + +class ExportNode(AstNode): + def __init__(self, filename, lineno, var): + AstNode.__init__(self, filename, lineno) + self.var = var + + def eval(self, data): + data.setVarFlag(self.var, "export", 1, op = 'exported') + +class UnsetNode(AstNode): + def __init__(self, filename, lineno, var): + AstNode.__init__(self, filename, lineno) + self.var = var + + def eval(self, data): + loginfo = { + 'variable': self.var, + 'file': self.filename, + 'line': self.lineno, + } + data.delVar(self.var,**loginfo) + +class UnsetFlagNode(AstNode): + def __init__(self, filename, lineno, var, flag): + AstNode.__init__(self, filename, lineno) + self.var = var + self.flag = flag + + def eval(self, data): + loginfo = { + 'variable': self.var, + 'file': self.filename, + 'line': self.lineno, + } + data.delVarFlag(self.var, self.flag, **loginfo) + +class DataNode(AstNode): + """ + Various data related updates. For the sake of sanity + we have one class doing all this. This means that all + this need to be re-evaluated... we might be able to do + that faster with multiple classes. + """ + def __init__(self, filename, lineno, groupd): + AstNode.__init__(self, filename, lineno) + self.groupd = groupd + + def getFunc(self, key, data): + if 'flag' in self.groupd and self.groupd['flag'] != None: + return data.getVarFlag(key, self.groupd['flag'], expand=False, noweakdefault=True) + else: + return data.getVar(key, False, noweakdefault=True, parsing=True) + + def eval(self, data): + groupd = self.groupd + key = groupd["var"] + loginfo = { + 'variable': key, + 'file': self.filename, + 'line': self.lineno, + } + if "exp" in groupd and groupd["exp"] != None: + data.setVarFlag(key, "export", 1, op = 'exported', **loginfo) + + op = "set" + if "ques" in groupd and groupd["ques"] != None: + val = self.getFunc(key, data) + op = "set?" + if val == None: + val = groupd["value"] + elif "colon" in groupd and groupd["colon"] != None: + e = data.createCopy() + op = "immediate" + val = e.expand(groupd["value"], key + "[:=]") + elif "append" in groupd and groupd["append"] != None: + op = "append" + val = "%s %s" % ((self.getFunc(key, data) or ""), groupd["value"]) + elif "prepend" in groupd and groupd["prepend"] != None: + op = "prepend" + val = "%s %s" % (groupd["value"], (self.getFunc(key, data) or "")) + elif "postdot" in groupd and groupd["postdot"] != None: + op = "postdot" + val = "%s%s" % ((self.getFunc(key, data) or ""), groupd["value"]) + elif "predot" in groupd and groupd["predot"] != None: + op = "predot" + val = "%s%s" % (groupd["value"], (self.getFunc(key, data) or "")) + else: + val = groupd["value"] + + flag = None + if 'flag' in groupd and groupd['flag'] != None: + flag = groupd['flag'] + elif groupd["lazyques"]: + flag = "_defaultval" + + loginfo['op'] = op + loginfo['detail'] = groupd["value"] + + if flag: + data.setVarFlag(key, flag, val, **loginfo) + else: + data.setVar(key, val, parsing=True, **loginfo) + +class MethodNode(AstNode): + tr_tbl = str.maketrans('/.+-@%&', '_______') + + def __init__(self, filename, lineno, func_name, body, python, fakeroot): + AstNode.__init__(self, filename, lineno) + self.func_name = func_name + self.body = body + self.python = python + self.fakeroot = fakeroot + + def eval(self, data): + text = '\n'.join(self.body) + funcname = self.func_name + if self.func_name == "__anonymous": + funcname = ("__anon_%s_%s" % (self.lineno, self.filename.translate(MethodNode.tr_tbl))) + self.python = True + text = "def %s(d):\n" % (funcname) + text + bb.methodpool.insert_method(funcname, text, self.filename, self.lineno - len(self.body)) + anonfuncs = data.getVar('__BBANONFUNCS', False) or [] + anonfuncs.append(funcname) + data.setVar('__BBANONFUNCS', anonfuncs) + if data.getVar(funcname, False): + # clean up old version of this piece of metadata, as its + # flags could cause problems + data.delVarFlag(funcname, 'python') + data.delVarFlag(funcname, 'fakeroot') + if self.python: + data.setVarFlag(funcname, "python", "1") + if self.fakeroot: + data.setVarFlag(funcname, "fakeroot", "1") + data.setVarFlag(funcname, "func", 1) + data.setVar(funcname, text, parsing=True) + data.setVarFlag(funcname, 'filename', self.filename) + data.setVarFlag(funcname, 'lineno', str(self.lineno - len(self.body))) + +class PythonMethodNode(AstNode): + def __init__(self, filename, lineno, function, modulename, body): + AstNode.__init__(self, filename, lineno) + self.function = function + self.modulename = modulename + self.body = body + + def eval(self, data): + # Note we will add root to parsedmethods after having parse + # 'this' file. This means we will not parse methods from + # bb classes twice + text = '\n'.join(self.body) + bb.methodpool.insert_method(self.modulename, text, self.filename, self.lineno - len(self.body) - 1) + data.setVarFlag(self.function, "func", 1) + data.setVarFlag(self.function, "python", 1) + data.setVar(self.function, text, parsing=True) + data.setVarFlag(self.function, 'filename', self.filename) + data.setVarFlag(self.function, 'lineno', str(self.lineno - len(self.body) - 1)) + +class ExportFuncsNode(AstNode): + def __init__(self, filename, lineno, fns, classname): + AstNode.__init__(self, filename, lineno) + self.n = fns.split() + self.classname = classname + + def eval(self, data): + + for func in self.n: + calledfunc = self.classname + "_" + func + + if data.getVar(func, False) and not data.getVarFlag(func, 'export_func', False): + continue + + if data.getVar(func, False): + data.setVarFlag(func, 'python', None) + data.setVarFlag(func, 'func', None) + + for flag in [ "func", "python" ]: + if data.getVarFlag(calledfunc, flag, False): + data.setVarFlag(func, flag, data.getVarFlag(calledfunc, flag, False)) + for flag in [ "dirs" ]: + if data.getVarFlag(func, flag, False): + data.setVarFlag(calledfunc, flag, data.getVarFlag(func, flag, False)) + data.setVarFlag(func, "filename", "autogenerated") + data.setVarFlag(func, "lineno", 1) + + if data.getVarFlag(calledfunc, "python", False): + data.setVar(func, " bb.build.exec_func('" + calledfunc + "', d)\n", parsing=True) + else: + if "-" in self.classname: + bb.fatal("The classname %s contains a dash character and is calling an sh function %s using EXPORT_FUNCTIONS. Since a dash is illegal in sh function names, this cannot work, please rename the class or don't use EXPORT_FUNCTIONS." % (self.classname, calledfunc)) + data.setVar(func, " " + calledfunc + "\n", parsing=True) + data.setVarFlag(func, 'export_func', '1') + +class AddTaskNode(AstNode): + def __init__(self, filename, lineno, func, before, after): + AstNode.__init__(self, filename, lineno) + self.func = func + self.before = before + self.after = after + + def eval(self, data): + bb.build.addtask(self.func, self.before, self.after, data) + +class DelTaskNode(AstNode): + def __init__(self, filename, lineno, func): + AstNode.__init__(self, filename, lineno) + self.func = func + + def eval(self, data): + bb.build.deltask(self.func, data) + +class BBHandlerNode(AstNode): + def __init__(self, filename, lineno, fns): + AstNode.__init__(self, filename, lineno) + self.hs = fns.split() + + def eval(self, data): + bbhands = data.getVar('__BBHANDLERS', False) or [] + for h in self.hs: + bbhands.append(h) + data.setVarFlag(h, "handler", 1) + data.setVar('__BBHANDLERS', bbhands) + +class InheritNode(AstNode): + def __init__(self, filename, lineno, classes): + AstNode.__init__(self, filename, lineno) + self.classes = classes + + def eval(self, data): + bb.parse.BBHandler.inherit(self.classes, self.filename, self.lineno, data) + +def handleInclude(statements, filename, lineno, m, force): + statements.append(IncludeNode(filename, lineno, m.group(1), force)) + +def handleExport(statements, filename, lineno, m): + statements.append(ExportNode(filename, lineno, m.group(1))) + +def handleUnset(statements, filename, lineno, m): + statements.append(UnsetNode(filename, lineno, m.group(1))) + +def handleUnsetFlag(statements, filename, lineno, m): + statements.append(UnsetFlagNode(filename, lineno, m.group(1), m.group(2))) + +def handleData(statements, filename, lineno, groupd): + statements.append(DataNode(filename, lineno, groupd)) + +def handleMethod(statements, filename, lineno, func_name, body, python, fakeroot): + statements.append(MethodNode(filename, lineno, func_name, body, python, fakeroot)) + +def handlePythonMethod(statements, filename, lineno, funcname, modulename, body): + statements.append(PythonMethodNode(filename, lineno, funcname, modulename, body)) + +def handleExportFuncs(statements, filename, lineno, m, classname): + statements.append(ExportFuncsNode(filename, lineno, m.group(1), classname)) + +def handleAddTask(statements, filename, lineno, m): + func = m.group("func") + before = m.group("before") + after = m.group("after") + if func is None: + return + + statements.append(AddTaskNode(filename, lineno, func, before, after)) + +def handleDelTask(statements, filename, lineno, m): + func = m.group("func") + if func is None: + return + + statements.append(DelTaskNode(filename, lineno, func)) + +def handleBBHandlers(statements, filename, lineno, m): + statements.append(BBHandlerNode(filename, lineno, m.group(1))) + +def handleInherit(statements, filename, lineno, m): + classes = m.group(1) + statements.append(InheritNode(filename, lineno, classes)) + +def runAnonFuncs(d): + code = [] + for funcname in d.getVar("__BBANONFUNCS", False) or []: + code.append("%s(d)" % funcname) + bb.utils.better_exec("\n".join(code), {"d": d}) + +def finalize(fn, d, variant = None): + saved_handlers = bb.event.get_handlers().copy() + + for var in d.getVar('__BBHANDLERS', False) or []: + # try to add the handler + handlerfn = d.getVarFlag(var, "filename", False) + if not handlerfn: + bb.fatal("Undefined event handler function '%s'" % var) + handlerln = int(d.getVarFlag(var, "lineno", False)) + bb.event.register(var, d.getVar(var, False), (d.getVarFlag(var, "eventmask") or "").split(), handlerfn, handlerln) + + bb.event.fire(bb.event.RecipePreFinalise(fn), d) + + bb.data.expandKeys(d) + runAnonFuncs(d) + + tasklist = d.getVar('__BBTASKS', False) or [] + bb.event.fire(bb.event.RecipeTaskPreProcess(fn, list(tasklist)), d) + bb.build.add_tasks(tasklist, d) + + bb.parse.siggen.finalise(fn, d, variant) + + d.setVar('BBINCLUDED', bb.parse.get_file_depends(d)) + + bb.event.fire(bb.event.RecipeParsed(fn), d) + bb.event.set_handlers(saved_handlers) + +def _create_variants(datastores, names, function, onlyfinalise): + def create_variant(name, orig_d, arg = None): + if onlyfinalise and name not in onlyfinalise: + return + new_d = bb.data.createCopy(orig_d) + function(arg or name, new_d) + datastores[name] = new_d + + for variant in list(datastores.keys()): + for name in names: + if not variant: + # Based on main recipe + create_variant(name, datastores[""]) + else: + create_variant("%s-%s" % (variant, name), datastores[variant], name) + +def multi_finalize(fn, d): + appends = (d.getVar("__BBAPPEND") or "").split() + for append in appends: + logger.debug(1, "Appending .bbappend file %s to %s", append, fn) + bb.parse.BBHandler.handle(append, d, True) + + onlyfinalise = d.getVar("__ONLYFINALISE", False) + + safe_d = d + d = bb.data.createCopy(safe_d) + try: + finalize(fn, d) + except bb.parse.SkipRecipe as e: + d.setVar("__SKIPPED", e.args[0]) + datastores = {"": safe_d} + + extended = d.getVar("BBCLASSEXTEND") or "" + if extended: + # the following is to support bbextends with arguments, for e.g. multilib + # an example is as follows: + # BBCLASSEXTEND = "multilib:lib32" + # it will create foo-lib32, inheriting multilib.bbclass and set + # BBEXTENDCURR to "multilib" and BBEXTENDVARIANT to "lib32" + extendedmap = {} + variantmap = {} + + for ext in extended.split(): + eext = ext.split(':', 2) + if len(eext) > 1: + extendedmap[ext] = eext[0] + variantmap[ext] = eext[1] + else: + extendedmap[ext] = ext + + pn = d.getVar("PN") + def extendfunc(name, d): + if name != extendedmap[name]: + d.setVar("BBEXTENDCURR", extendedmap[name]) + d.setVar("BBEXTENDVARIANT", variantmap[name]) + else: + d.setVar("PN", "%s-%s" % (pn, name)) + bb.parse.BBHandler.inherit(extendedmap[name], fn, 0, d) + + safe_d.setVar("BBCLASSEXTEND", extended) + _create_variants(datastores, extendedmap.keys(), extendfunc, onlyfinalise) + + for variant in datastores.keys(): + if variant: + try: + if not onlyfinalise or variant in onlyfinalise: + finalize(fn, datastores[variant], variant) + except bb.parse.SkipRecipe as e: + datastores[variant].setVar("__SKIPPED", e.args[0]) + + datastores[""] = d + return datastores |