coreboot-kgpe-d16/util/newconfig/config.g

1184 lines
31 KiB
Plaintext

import sys
import os
import re
import string
debug = 0
arch = ''
ldscriptbase = ''
payloadfile = ''
makeoptions = {}
makeexpressions = []
# Key is the rule name. Value is a mkrule object.
makebaserules = {}
# List of targets in the order defined by makerule commands.
makerule_targets = {}
treetop = ''
target_dir = ''
sources = {}
objectrules = {}
# make these a hash so they will be unique.
driverrules = {}
ldscripts = []
userdefines = []
curpart = 0
root = 0
globalvars = {} # We will globals here
parts = {}
options = {}
# options in order defined. These will be unique due to use of hash
# for options.
options_by_order = []
crt0includes = []
partinstance = 0
curdir = ''
dirstack = []
config_file_list = []
local_path = re.compile(r'^\.')
# -----------------------------------------------------------------------------
# Error Handling
# -----------------------------------------------------------------------------
class location:
class place:
def __init__(self, file, line, command):
self.file = file
self.line = line
self.command = command
def next_line(self, command):
self.line = self.line + 1
self.command = command
def at(self):
return "%s:%d" % (self.file, self.line)
def __init__ (self):
self.stack = []
def file(self):
return self.stack[-1].file
def line(self):
return self.stack[-1].line
def command(self):
return self.stack[-1].command
def push_file(self, file):
self.stack.append(self.place(file, 0, ""))
def pop_file(self):
self.stack.pop()
def next_line(self, command):
self.stack[-1].next_line(command)
def at(self):
return self.stack[-1].at()
loc = location()
class makerule:
def __init__ (self, target):
self.target = target
self.dependency = []
self.actions = []
def addaction(self, action):
self.actions.append(action)
def adddependency(self, dependency):
self.dependency.append(dependency)
def gtarget(self):
return self.target
def gdependency(self):
return self.dependency
def gaction(self):
return self.actions
class option:
def __init__ (self, name):
self.name = name # name of option
self.loc = 0 # current location
self.value = 0 # option value
self.set = 0 # option has been set
self.used = 0 # option has been set
self.default = 0 # option has default value (otherwise
# it is undefined)
self.comment = '' # description of option
self.exportable = 0 # option is able to be exported
self.exported = 0 # option is exported
self.defined = 0 # option has a value
self.format = '%s' # option print format
def setvalue(self, value, loc):
if (self.set):
print "Option %s: " % self.name
print "Attempt to set %s at %s" % (value, loc.at())
print "Already set to %s at %s" % \
(self.value, self.loc.at())
sys.exit(1)
self.set = 1
self.value = value
self.defined = 1
self.loc = loc
def getvalue(self, part):
global curpart
if (not (type(self.value) is str)):
return self.value
if (self.value == '' or self.value[0] != '{'):
return self.value
# evaluate expression
a = re.sub("^{", "", self.value)
a = re.sub("}$", "", a)
# save curpart so we can evaluate expression
# in context of part
s = curpart
curpart = part
v = parse('value', a)
curpart = s
return v
def setdefault(self, value, loc):
if (self.default):
print "%s: " % self.name
print "Attempt to default %s at %s" % (value, loc)
print "Already defaulted to %s at %s" % \
(self.value, self.loc.at())
print "Warning only"
if (self.set):
print "%s: " % self.name
print "Attempt to default %s at %s" % (value, loc)
print "Already set to %s at %s" % \
(self.value, self.loc.at())
print "Warning only"
return
self.value = value
self.defined = 1
self.default = 1
self.loc = loc
def setnodefault(self, loc):
self.default = 1
self.defined = 0
self.loc = loc
def where(self):
return self.loc
def setcomment(self, value, loc):
if (self.comment != ''):
print "%s: " % self.name
print "Attempt to modify comment at %s" % loc
return
self.comment = value
def setexportable(self):
self.exportable = 1
def setexported(self):
self.exportable = 1
self.exported = 1
def setnoexport(self):
self.exportable = 0
self.exported = 0
def setformat(self, fmt):
self.format = fmt
def getformat(self):
return self.format
def setused(self):
if (self.exportable):
self.exported = 1
self.used = 1
def isexported(self):
return (self.exported and self.defined)
def isdefined(self):
return (self.defined)
def isset(self):
return (self.set)
def isused(self):
return (self.used)
class partobj:
def __init__ (self, dir, parent, type):
global partinstance
if (debug):
print "partobj dir %s parent %s type %s" %(dir,parent,type)
self.children = []
self.initcode = []
self.registercode = []
self.siblings = 0
self.type = type
self.objects = []
self.dir = dir
self.irq = 0
self.instance = partinstance + 1
partinstance = partinstance + 1
self.devfn = 0
self.private = 0
self.options = {}
if (parent):
if (debug):
print "add to parent"
self.parent = parent
parent.children.append(self)
else:
self.parent = self
def dumpme(self, lvl):
print "%d: type %s" % (lvl, self.type)
print "%d: dir %s" % (lvl,self.dir)
print "%d: parent %s" % (lvl,self.parent.type)
print "%d: parent dir %s" % (lvl,self.parent.dir)
print "%d: initcode " % lvl
for i in self.initcode:
print " %s" % i
print "%d: registercode " % lvl
for i in self.registercode:
print " %s" % i
def gencode(self):
print "struct cdev dev%d = {" % self.instance
print "/* %s %s */" % (self.type, self.dir)
print " .devfn = %d" % self.devfn
if (self.siblings):
print " .next = &dev%d" % self.sibling.instance
if (self.children):
print " .children = &dev%d" % \
self.children[0].instance
if (self.private):
print " .private = private%d" % self.instance
print "};"
def irq(self, irq):
self.irq = irq
def addinit(self, code):
self.initcode.append(code)
def addregister(self, code):
self.registercode.append(code)
def usesoption(self, name):
o = getvalue(options, name)
if (o == 0):
fatal("Error: can't use undefined option %s" % name)
o.setused()
setvalue(self.options, name, o)
if (debug):
print "option %s used in %s" % (name, self)
class partsstack:
def __init__ (self):
self.stack = []
def push(self, part):
self.stack.append(part)
def pop(self):
return self.stack.pop()
def tos(self):
return self.stack[-1]
pstack = partsstack()
def fatal(string):
global loc
size = len(loc.stack)
i = 0
while(i < size -1):
print loc.stack[i].at()
i = i + 1
print "%s: %s"% (loc.at(), string)
sys.exit(1)
def warning(string):
global loc
print "===> Warning:"
size = len(loc.stack)
i = 0
while(i < size -1):
print loc.stack[i].at()
i = i + 1
print "%s: %s"% (loc.at(), string)
# -----------------------------------------------------------------------------
# statements
# -----------------------------------------------------------------------------
def getvalue(dict, name):
if name not in dict.keys():
if (debug >1):
print 'Undefined:', name
return 0
v = dict.get(name, 0)
if (debug > 1):
print "getvalue %s returning %s" % (name, v)
return v
def setvalue(dict, name, value):
if name in dict.keys():
print "Warning, %s previously defined" % name
if (debug > 1):
print "setvalue sets %s to %s" % (name, value)
dict[name] = value
# options.
# to create an option, it has to not exist.
# When an option value is fetched, the fact that it was used is
# remembered.
# Legal things to do:
# set a default value, then set a real value before the option is used.
# set a value, try to set a default, default silently fails.
# Illegal:
# use the value, then try to set the value
def newoption(name):
o = getvalue(options, name)
if (o):
print "option %s already defined" % name
sys.exit(1)
o = option(name)
setvalue(options, name, o)
options_by_order.append(name)
# option must be declared before being used in a part
# if we're not processing a part, then we must
# be at the top level where all options are available
def getoption(name, part):
global options
if (part):
o = getvalue(part.options, name)
else:
o = getvalue(options, name)
if (o == 0 or not o.defined):
fatal( "Error: Option %s Undefined." % name)
v = o.getvalue(part)
if (debug > 2):
print "getoption returns %s" % v
print "%s" % o.where()
return v
# setoptionstmt only allowed at top level
def setoptionstmt(name, value):
global curpart
if (curpart != root):
fatal("Error: options can only be set in target configuration file")
setoption(name, value)
def setoption(name, value):
global loc
o = getvalue(options, name)
if (o == 0):
fatal("Error: attempt set nonexistent option %s" % name)
o.setvalue(value, loc)
def setdefault(name, value):
global loc
o = getvalue(options, name)
if (not o):
return
if (o.default):
print "setdefault: attempt to duplicate default for %s" % name
return
o.setdefault(value, loc)
def setnodefault(name):
global loc
o = getvalue(options, name)
if (not o):
return
if (o.default):
print "setdefault: attempt to duplicate default for %s" % name
return
o.setnodefault(loc)
def setcomment(name, value):
o = getvalue(options, name)
if (not o):
fatal("setcomment: %s not here" % name)
o.setcomment(value, loc)
def setexported(name):
o = getvalue(options, name)
if (not o):
fatal("setexported: %s not here" % name)
o.setexported()
def setnoexport(name):
o = getvalue(options, name)
if (not o):
fatal("setnoexport: %s not here" % name)
o.setnoexport()
def setexportable(name):
o = getvalue(options, name)
if (not o):
fatal("setexportable: %s not here" % name)
o.setexportable()
def setformat(name, fmt):
o = getvalue(options, name)
if (not o):
fatal("setformat: %s not here" % name)
o.setformat(fmt)
def getformated(name, part):
global options
if (part):
o = getvalue(part.options, name)
else:
o = getvalue(options, name)
if (o == 0 or not o.defined):
fatal( "Error: Option %s Undefined." % name)
v = o.getvalue(part)
f = o.getformat()
return (f % v)
def isexported(name, part):
if (part):
o = getvalue(part.options, name)
else:
o = getvalue(options, name)
if (o):
return o.isexported()
return 0
def isdefined(name, part):
if (part):
o = getvalue(part.options, name)
else:
o = getvalue(options, name)
if (o):
return o.isdefined()
return 0
def isset(name, part):
if (part):
o = getvalue(part.options, name)
else:
o = getvalue(options, name)
if (o):
return o.isset()
return 0
def isused(name, part):
if (part):
o = getvalue(part.options, name)
else:
o = getvalue(options, name)
if (o):
return o.isused()
return 0
def usesoption(name):
global curpart
curpart.usesoption(name)
def validdef(name, defval):
o = getvalue(options, name)
if (not o):
fatal("validdef: %s not here" % name)
if ((defval & 1) != 1):
fatal("Error: must specify default value for option %s" % name)
if ((defval & 2) != 2):
fatal("Error: must specify export for option %s" % name)
if ((defval & 4) != 4):
fatal("Error: must specify comment for option %s" % name)
def loadoptions():
global treetop
optionsfile = os.path.join(treetop, 'src', 'config', 'Options.lb')
loc.push_file(optionsfile)
if (not parse('options', open(optionsfile, 'r').read())):
fatal("Error: Could not parse file")
loc.pop_file()
# we do the crt0include as a dictionary, so that if needed we
# can trace who added what when. Also it makes the keys
# nice and unique.
def addcrt0include(path):
global crt0includes
#fullpath = os.path.join(curdir, path)
#fullpath = path
#setvalue(crt0includes, fullpath, loc)
# oh shoot. Order matters. All right, we'll worry about this
# later.
fullpath = path
if (debug > 2):
print "ADDCRT0: %s" % fullpath
crt0includes.append(fullpath)
def addldscript(path):
global ldscripts
if (path[0] == '/'):
fullpath = treetop + '/src/' + path
else:
fullpath = curdir + '/' + path
#fullpath = os.path.join(curdir, path)
#setvalue(ldscripts, fullpath, loc)
if (debug):
print "fullpath :%s: curdir :%s: path :%s:" % (fullpath, curdir, path)
ldscripts.append(fullpath)
def payload(path):
global payloadfile
adduserdefine("PAYLOAD:=%s"%path)
# addrule('payload')
# adddep('payload', path)
# addaction('payload', 'cp $< $@')
# this is called with an an object name.
# the easiest thing to do is add this object to the current
# component.
# such kludgery. If the name starts with '.' then make the
# dependency be on ./thing.x gag me.
def addobjectdriver(dict, object_name):
suffix = object_name[-2:]
if (suffix == '.o'):
suffix = '.c'
base = object_name[:-2]
if (object_name[0] == '.'):
source = base + suffix
else:
source = os.path.join(curdir, base + suffix)
object = base + '.o'
if (debug):
print "add object %s source %s" % (object_name, source)
setvalue(dict, base, [object, source])
def addobject(object_name):
addobjectdriver(objectrules, object_name)
def adddriver(driver_name):
addobjectdriver(driverrules, driver_name)
def target(targ_name):
global target_dir
global curpart
global root
print "Configuring TARGET %s" % targ_name
target_dir = os.path.join(os.path.dirname(loc.file()), targ_name)
if not os.path.isdir(target_dir):
print "Creating directory %s" % target_dir
os.makedirs(target_dir)
print "Will place Makefile, crt0.S, etc. in %s" % target_dir
root = partobj(target_dir, 0, 'board')
curpart = root
def part(name, path, file):
global curpart,curdir,treetop
dirstack.append(curdir)
curdir = os.path.join(treetop, 'src', name, path)
newpart = partobj(curdir, curpart, name)
print "Configuring PART %s" % name
if (debug):
print "PUSH part %s %s" % (name, curpart.dir)
pstack.push(curpart)
curpart = newpart
doconfigfile(curdir, file)
def partpop():
global curpart,curdir
print "End PART %s" % curpart.type
# Warn if options are used without being set in this part
for i in curpart.options.keys():
if (not isset(i, curpart)):
print "WARNING: Option %s using default value %s" % (i, getformated(i, curpart))
curpart = pstack.pop()
curdir = dirstack.pop()
# dodir is like part but there is no new part
def dodir(path, file):
global curdir, treetop
# if the first char is '/', it is relative to treetop,
# else relative to curdir
# os.path.join screws up if the name starts with '/', sigh.
if (path[0] == '/'):
fullpath = treetop + '/src/' + path
else:
fullpath = os.path.join(curdir, path)
if (debug):
print "DODIR: path %s, fullpath %s" % (path, fullpath)
print "DODIR: curdis %s treetop %s" % (curdir, treetop)
print "Configuring DIR %s" % os.path.join(path, file)
dirstack.append(curdir)
curdir = fullpath
file = os.path.join(fullpath, file)
config_file_list.append(path)
doconfigfile(fullpath, file)
curdir = dirstack.pop()
def ternary(expr, yes, no):
if (debug):
print "ternary %s" % expr
a = tohex(expr) # expr # eval(expr)
if (debug):
print "expr %s a %d yes %d no %d"% (expr, a, yes, no)
if (a == 0):
if (debug):
print "Ternary returns %d" % yes
return yes
else:
if (debug):
print "Ternary returns %d" % no
return no
# atoi is in the python library, but not strtol? Weird!
def tohex(name):
return eval('int(%s)' % name)
def IsInt( str ):
""" Is the given string an integer?"""
try:
num = int(str)
return 1
except ValueError:
return 0
def addrule(id):
o = makerule(id)
setvalue(makebaserules, id, o)
def adduserdefine(str):
userdefines.append(str)
def dequote(str):
a = re.sub("^\"", "", str)
a = re.sub("\"$", "", a)
# highly un-intuitive, need four \!
a = re.sub("\\\\\"", "\"", a)
return a
def addaction(id, str):
o = getvalue(makebaserules, id)
a = dequote(str)
o.addaction(a)
def adddep(id, str):
o = getvalue(makebaserules, id)
a = dequote(str)
o.adddependency(a)
# If the first part of <path> matches treetop, replace that part with "$(TOP)"
def topify(path):
global treetop
if path[0:len(treetop)] == treetop:
path = path[len(treetop):len(path)]
if (path[0:1] == "/"):
path = path[1:len(path)]
path = "$(TOP)/" + path
return path
# arch is 'different' ... darn it.
def set_arch(my_arch):
global arch
global curdir
arch = my_arch
setoption('ARCH', my_arch)
part('arch', my_arch, 'config/make.base.lb')
def mainboard(path):
global mainboard_dir, treetop
mainboard_dir = path
full_mainboard_dir = os.path.join(treetop, 'src/mainboard', path)
setoption('MAINBOARD', full_mainboard_dir)
vendor = re.sub("/.*", "", path)
mainboard_part_number = re.sub("[^/]/", "", path)
setoption('MAINBOARD_VENDOR', vendor)
setoption('MAINBOARD_PART_NUMBER', mainboard_part_number)
part('mainboard', path, 'Config.lb')
#=============================================================================
# FILE OUTPUT
#=============================================================================
def writemakefileheader(file, fname):
file.write("# File: %s\n" % fname)
file.write("# This file was generated by '%s %s %s'\n\n"
% (sys.argv[0], sys.argv[1], sys.argv[2]))
def writemakefilesettings(path):
global treetop, arch, mainboard_dir, target_dir, options_by_order, root
# Write Makefile.settings to seperate the settings
# from the actual makefile creation
# In practice you need to rerun NLBConfig.py to change
# these but in theory you shouldn't need to.
filename = os.path.join(path, "Makefile.settings")
print "Creating", filename
file = open(filename, 'w+')
writemakefileheader(file, filename)
file.write("TOP:=%s\n" % (treetop))
#file.write("ARCH:=%s\n" % (arch))
#file.write("MAINBOARD:=%s\n" % (mainboard_dir))
file.write("TARGET_DIR:=%s\n" % (target_dir))
for i in options_by_order:
if (isexported(i, 0)):
file.write("export %s:=%s\n" % (i, getformated(i, 0)))
file.write("export VARIABLES := ")
for i in options.keys():
if (isexported(i, 0)):
file.write("%s " % i)
file.write("\n")
# file.write("CPUFLAGS := ")
# for i in options.keys():
# o = options[i]
# file.write("-D%s=%s " % (i, o.getvalue()))
# file.write("\n")
file.close()
# write the makefile
# let's try the Makefile
# first, dump all the -D stuff
def writemakefile(path):
global root
makefilepath = os.path.join(path, "Makefile")
print "Creating", makefilepath
file = open(makefilepath, 'w+')
writemakefileheader(file, makefilepath)
# file.write("include Makefile.settings\n")
# file.write("include cpuflags\n")
# Putting "include cpuflags" in the Makefile has the problem that the
# cpuflags file would be generated _after_ we want to include it.
# Instead, let make do the work of computing CPUFLAGS:
file.write("""\
# Get the value of TOP, VARIABLES, and several other variables.
include Makefile.settings
# Function to create an item like -Di586 or -DMAX_CPUS='1' or -Ui686
D_item = $(if $(subst undefined,,$(origin $1)),-D$1$(if $($1),='$($1)',),-U$1)
# Compute the value of CPUFLAGS here during make's first pass.
CPUFLAGS := $(foreach _var_,$(VARIABLES),$(call D_item,$(_var_)))
""")
for i in userdefines:
file.write("%s\n" %i)
file.write("\n")
# print out all the object dependencies
file.write("\n# object dependencies (objectrules:)\n")
file.write("OBJECTS :=\n")
file.write("DRIVERS :=\n")
for objrule in objectrules.keys():
obj = objectrules[objrule]
obj_name = obj[0]
obj_source = obj[1]
file.write("OBJECTS-1 += %s\n" % (obj_name))
for driverrule in driverrules.keys():
driver = driverrules[driverrule]
obj_name = driver[0]
obj_source = driver[1]
file.write("DRIVER += %s\n" % (obj_name))
# Print out all ldscript.ld dependencies.
file.write("\n# ldscript.ld dependencies:\n")
file.write("LDSUBSCRIPTS-1 := \n" )
for script in ldscripts:
file.write("LDSUBSCRIPTS-1 += %s\n" % topify(script))
# Print out the dependencies for crt0_includes.h
file.write("\n# Dependencies for crt0_includes.h\n")
file.write("CRT0_INCLUDES:=\n")
for i in crt0includes:
if (local_path.match(i)):
file.write("CRT0_INCLUDES += %s\n" % i)
else:
file.write("CRT0_INCLUDES += $(TOP)/src/%s\n" % i)
file.write("\nSOURCES=\n")
#for source in sources:
#file.write("SOURCES += %s\n" % source)
# Print out the user defines.
file.write("\n# userdefines:\n")
#for udef in userdefines:
#file.write("%s\n" % udef)
# Print out the base rules.
# Need to have a rule that counts on 'all'.
file.write("\n# mainrulelist:")
#file.write("\nmainrule: %s\n" % mainrulelist)
# Print out any user rules.
file.write("\n# From makerule or docipl commands:\n")
# Old way (hash order): for target in makebaserules.keys():
# New way (config file order):
#for target in makerule_targets:
#makebaserules[target].write(file)
file.write("\n# objectrules:\n")
for objrule in objectrules.keys():
obj = objectrules[objrule]
source = topify(obj[1])
file.write("%s: %s\n" % (obj[0], source))
file.write("\t$(CC) -c $(CFLAGS) -o $@ $<\n")
#file.write("%s\n" % objrule[2])
for driverrule in driverrules.keys():
driver = driverrules[driverrule]
source = topify(driver[1])
file.write("%s: %s\n" % (driver[0], source))
#file.write("%s\n" % objrule[2])
# Print out the rules that will make cause the files
# generated by NLBConfig.py to be remade if any dependencies change.
file.write("\n# Remember the automatically generated files\n")
file.write("GENERATED:=\n")
for genfile in [ 'Makefile',
'Makefile.settings',
'crt0_includes.h',
'nsuperio.c',
'chip.c',
'LinuxBIOSDoc.config' ]:
file.write("GENERATED += %s\n" % genfile)
file.write("\n# Remake Makefile (and the other files generated by\n")
file.write("# NLBConfig.py) if any config dependencies change.\n")
for cfile in config_file_list:
file.write("$(GENERATED): %s\n" % topify(cfile))
for depfile in [ '%s' % top_config_file, # This a duplicate, remove?
'$(TOP)/util/config/NLBConfig.py',
'$(TOP)/src/arch/$(ARCH)/config/make.base' ]:
file.write("$(GENERATED): %s\n" % depfile)
file.write("$(GENERATED):\n")
file.write("\tpython $(TOP)/util/config/NLBConfig.py %s $(TOP)\n"
% top_config_file)
keys = root.options.keys()
keys.sort()
file.write("\necho:\n")
for key in keys:
file.write("\t@echo %s='$(%s)'\n"% (key,key))
for i in makebaserules.keys():
m = makebaserules[i]
file.write("%s: " %i)
for i in m.dependency:
file.write("%s " % i)
file.write("\n")
for i in m.actions:
file.write("\t%s\n" % i)
file.close()
# Write out crt0_includes.h (top-level assembly language) include file.
def writecrt0_includes(path):
crt0filepath = os.path.join(path, "crt0_includes.h")
print "Creating", crt0filepath
file = open(crt0filepath, 'w+')
for i in crt0includes:
file.write("#include <%s>\n" % i)
file.close()
%%
parser Config:
ignore: r'\s+'
ignore: "#.*?\r?\n"
# less general tokens should come first, otherwise they get matched
# by the re's
token ACT: 'act'
token ADDACTION: 'addaction'
token ALWAYS: 'always'
token ARCH: 'arch'
token COMMENT: 'comment'
token CPU: 'cpu'
token DEFAULT: 'default'
token DEFINE: 'define'
token DEP: 'dep'
token DIR: 'dir'
token DRIVER: 'driver'
token END: '$|end'
token EQ: '='
token EXPORT: 'export'
token FORMAT: 'format'
token IF: 'if'
token INIT: 'init'
token LDSCRIPT: 'ldscript'
token LOADOPTIONS: 'loadoptions'
token MAINBOARD: 'mainboard'
token MAINBOARDINIT: 'mainboardinit'
token MAKEDEFINE: 'makedefine'
token MAKERULE: 'makerule'
token NEVER: 'never'
token NONE: 'none'
token NORTHBRIDGE: 'northbridge'
token OBJECT: 'object'
token OPTION: 'option'
token PAYLOAD: 'payload'
token PMC: 'pmc'
token REGISTER: 'register'
token SOUTHBRIDGE: 'southbridge'
token SUPERIO: 'superio'
token TARGET: 'target'
token USED: 'used'
token USES: 'uses'
token NUM: r'[0-9]+'
token XNUM: r'0x[0-9a-fA-F]+'
# Why is path separate? Because paths to resources have to at least
# have a slash, we thinks
token PATH: r'[a-zA-Z0-9_.][a-zA-Z0-9/_.]+[a-zA-Z0-9_.]+'
# Dir's on the other hand are abitrary
# this may all be stupid.
token DIRPATH: r'[a-zA-Z0-9_$()./]+'
token ID: r'[a-zA-Z_.]+[a-zA-Z0-9_.]*'
token DELEXPR: r'{([^}]+|\\.)*}'
token STR: r'"([^\\"]+|\\.)*"'
token RAWTEXT: r'.*'
rule expr<<V>>: logical<<V>> {{ l = logical }}
( "&&" logical<<V>> {{ l = l and logical }}
| "||" logical<<V>> {{ l = l or logical }}
)* {{ return l }}
rule logical<<V>>: factor<<V>> {{ n = factor }}
( "[+]" factor<<V>> {{ n = n+factor }}
| "-" factor<<V>> {{ n = n-factor }}
)* {{ return n }}
rule factor<<V>>: term<<V>> {{ v = term }}
( "[*]" term<<V>> {{ v = v*term }}
| "/" term<<V>> {{ v = v/term }}
| "<<" term<<V>> {{ v = v << term }}
| ">=" term<<V>> {{ v = (v < term)}}
)* {{ return v }}
rule unop<<V>>: "!" ID {{ return ternary(getoption(ID, curpart), 1, 0)}}
# A term is a number, variable, or an expression surrounded by parentheses
rule term<<V>>: NUM {{ return atoi(NUM) }}
| XNUM {{ return tohex(XNUM) }}
| ID {{ return tohex(getoption(ID, curpart)) }}
| unop<<V>> {{ return unop }}
| "\\(" expr<<V>> "\\)" {{ return expr }}
rule partend<<C>>: (stmt<<C>>)* END {{ partpop()}}
rule mainboard: MAINBOARD PATH {{ mainboard(PATH) }}
partend<<1>>
rule northbridge<<C>>:
NORTHBRIDGE PATH {{ if (C): part('northbridge', PATH, 'Config.lb') }}
partend<<C>>
rule superio<<C>>: SUPERIO PATH {{ if (C): part('superio', PATH, 'Config.lb') }}
partend<<C>>
rule cpu<<C>>: CPU ID {{ if (C): part('cpu', ID, 'Config.lb') }}
partend<<C>>
rule pmc<<C>>: PMC PATH {{ if (C): part('pmc', PATH, 'Config.lb') }}
partend<<C>>
rule arch<<C>>: ARCH ID {{ if (C): set_arch(ID) }}
partend<<C>>
rule southbridge<<C>>:
SOUTHBRIDGE PATH {{ if (C): part('southbridge', PATH, 'Config.lb')}}
partend<<C>>
rule mainboardinit<<C>>:
MAINBOARDINIT DIRPATH {{ if (C): addcrt0include(DIRPATH)}}
rule object<<C>>: OBJECT DIRPATH {{ if (C): addobject(DIRPATH)}}
rule driver<<C>>: DRIVER DIRPATH {{ if (C): adddriver(DIRPATH)}}
rule dir<<C>>: DIR DIRPATH {{ if (C): dodir(DIRPATH, 'Config.lb') }}
rule ldscript<<C>>: LDSCRIPT DIRPATH {{ if (C): addldscript(DIRPATH) }}
rule payload<<C>>: PAYLOAD DIRPATH {{ if (C): payload(DIRPATH) }}
# if is a bad id ....
# needs to be C and ID, but nested if's are, we hope, not going to
# happen. IF so, possibly ID && C could be used.
rule iif<<C>>: IF ID {{ c = tohex(getoption(ID, curpart)) }}
(stmt<<c>>)* END
rule depsacts<<ID, C>>:
( DEP STR {{ if (C): adddep(ID, STR) }}
| ACT STR {{ if (C): addaction(ID, STR) }}
)*
rule makerule<<C>>: MAKERULE DIRPATH {{ if (C): addrule(DIRPATH) }}
depsacts<<DIRPATH, C>>
rule makedefine<<C>>:
MAKEDEFINE RAWTEXT {{ if (C): adduserdefine(RAWTEXT) }}
rule addaction<<C>>:
ADDACTION ID STR {{ if (C): addaction(ID, STR) }}
rule init<<C>>: INIT STR {{ if (C): curpart.addinit(STR) }}
rule register<<C>>: REGISTER STR {{ if (C): curpart.addregister(STR) }}
# to make if work without 2 passses, we use an old hack from SIMD, the
# context bit. If the bit is 1, then ops get done, otherwise
# ops don't get done. From the top level, context is always
# 1. In an if, context depends on eval of the if condition
rule stmt<<C>>: cpu<<C>> {{ return cpu}}
| pmc<<C>> {{ return pmc}}
| arch<<C>> {{ return arch}}
| northbridge<<C>> {{ return northbridge }}
| southbridge<<C>> {{ return southbridge }}
| superio<<C>> {{ return superio }}
| object<<C>> {{ return object }}
| driver<<C>> {{ return driver }}
| mainboardinit<<C>> {{ return mainboardinit }}
| makerule<<C>> {{ return makerule }}
| makedefine<<C>> {{ return makedefine }}
| addaction<<C>> {{ return addaction }}
| init<<C>> {{ return init }}
| register<<C>> {{ return register}}
| iif<<C>> {{ return iif }}
| dir<<C>> {{ return dir}}
| ldscript<<C>> {{ return ldscript}}
| payload<<C>> {{ return payload}}
# ENTRY for parsing Config.lb file
rule cfgfile: (uses<<1>>)* (stmt<<1>>)*
{{ return 1 }}
rule usesid<<C>>: ID {{ if (C): usesoption(ID) }}
rule uses<<C>>: USES (usesid<<C>>)+
# ENTRY for parsing a value
rule value: STR {{ return dequote(STR) }}
| term<<[]>> {{ return term }}
| DELEXPR {{ return DELEXPR }}
rule option: OPTION ID EQ value {{ setoptionstmt(ID, value) }}
# ENTRY for parsing root part
rule board: LOADOPTIONS {{ loadoptions() }}
TARGET DIRPATH {{ target(DIRPATH) }}
(uses<<1>>)*
(option)*
mainboard {{ return 1 }}
rule defstmts<<ID>>: {{ d = 0 }}
( DEFAULT
( value {{ setdefault(ID, value) }}
| NONE {{ setnodefault(ID) }}
) {{ d = d | 1 }}
| FORMAT STR {{ setformat(ID, dequote(STR)) }}
| EXPORT
( ALWAYS {{ setexported(ID) }}
| USED {{ setexportable(ID) }}
| NEVER {{ setnoexport(ID) }}
) {{ d = d | 2 }}
| COMMENT STR {{ setcomment(ID, dequote(STR)); d = d | 4 }}
)+ {{ return d }}
rule define: DEFINE ID {{ newoption(ID) }}
defstmts<<ID>> END {{ validdef(ID, defstmts) }}
# ENTRY for parsing Options.lb file
rule options: (define)* END {{ return 1 }}
%%
def dumptree(part, lvl):
if (debug):
print "DUMPTREE ME is"
part.dumpme(lvl)
# dump the siblings -- actually are there any? not sure
# dump the kids
if (debug):
print "DUMPTREE KIDS are"
for kid in part.children:
dumptree(kid, lvl+1)
if (debug):
print "DONE DUMPTREE"
def gencode(part):
if (debug):
print "GENCODE ME is"
if (debug):
part.gencode()
# dump the siblings -- actually are there any? not sure
# dump the kids
if (debug):
print "GENCODE KIDS are"
for kid in part.children:
gencode(kid)
if (debug):
print "DONE GENCODE"
def doconfigfile(path, file):
filename = os.path.join(path, file)
loc.push_file(filename)
if (not parse('cfgfile', open(filename, 'r').read())):
fatal("Error: Could not parse file")
if __name__=='__main__':
from sys import argv
if (len(argv) < 3):
print 'Args: <file> <path to linuxbios>'
sys.exit(1)
top_config_file = os.path.abspath(sys.argv[1])
treetop = os.path.abspath(sys.argv[2])
# Now read in the customizing script...
loc.push_file(argv[1])
if (not parse('board', open(argv[1], 'r').read())):
fatal("Error: Could not parse file")
if (debug):
print "DEVICE TREE:"
dumptree(root, 0)
gencode(root)
# crt0 includes
if (debug):
for i in crt0includes:
print "crt0include file %s" % (i)
for i in driverrules.keys():
print "driver file %s" % (i)
for i in ldscripts:
print "ldscript file %s" % (i)
for i in makebaserules.keys():
m = makebaserules[i]
print " makerule %s dep %s act %s" % (i, m.dependency, m.actions)
writemakefilesettings(target_dir)
writecrt0_includes(target_dir)
writemakefile(target_dir)