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codezero/tools/cml2-tools/autoconfigure.py
Bahadir Balban e2b791a3d8 Initial commit
2008-01-13 13:53:52 +00:00

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#!/usr/bin/env python
#
# linux/scripts/autoconfigure.py : Automagical Kernel Configuration.
#
# Copyright (C) 2000-2002 Eric S. Raymond <esr@thyrsus.com>
# This is free software, see GNU General Public License 2 for details.
#
# This script tries to autoconfigure the Linux kernel, detecting the
# hardware (devices, ...) and software (protocols, filesystems, ...).
# It uses soft detection: no direct IO access to unknown devices, thus
# it is always safe to run this script and it never hangs, but it cannot
# detect all hardware (mainly misses some very old hardware). You don't
# need root, but you will need a CML2 rulebase handy.
#
# Most of the smarts in this script is in the file of probe rules
# maintained by Giacomo Catenazzi and brought in by execfile.
import sys, getopt, os, glob, commands, re
import cml, cmlsystem
from cml import y, m, n # For use in the autoprobe rules
lang = {
"COMPLETE":"Configuration complete.",
"COMPLEMENT":"* Computing complement sets",
"DERIVED":"Symbol %s is derived and cannot be set.",
"DONE":"Done",
"EFFECTS":"Side effects:",
"NOCMDLINE":"%s is the wrong type to be set from the command line",
"OPTUNKNOWN":"autoconfigure: unknown option.\n",
"ROOTFS":"* %s will be hard-compiled in for the root filesystem\n",
"ROOTHW":"* %s will be hard-compiled in to run the root device\n",
"ROOTLOOK":"# Looking for your root filesystem...\n",
"ROOTWARN":"** Warning: I could not identify the " \
"bus type of your root drive!\n",
"SETFAIL" : "%s failed while %s was being set to %s\n",
"SYMUNKNOWN":"cmlconfigure: unknown symbol %s\n",
"TURNOFF":"# Turning off unprobed device symbols",
"UNAME":"Can't determine ARCH, uname failed.",
}
class ConfigFile:
"Object that represents a generated configuration."
def __init__(self, myconfiguration, hardcompile, debuglevel=0):
# Prepare an output object to accept the configuration file
self.hardcompile = hardcompile
self.myconfiguration = myconfiguration
myconfiguration.debug = debuglevel
self.modified = {}
self.emitted = {}
if debuglevel:
sys.stderr.write("* Debug level %d" % debuglevel)
# 'found' sets the value 'y/m' (driver detected)
# 'found_y' sets the value 'y' (driver detected, forces built-in)
# 'found_m' sets the value 'm' (driver detected, build as module)
# 'found_n' sets the value 'n' (driver not needed)
#
# The priority is: y > m > n > 'other'
def found(self, symbol, val=None, label=None):
if type(symbol) == type(""):
symbol = self.myconfiguration.dictionary.get(symbol)
# Ignore obsolete symbols
if not symbol:
return
# Ignore attempts to set derived symbols. Some autoprobes
# do this because they were composed in ignorance of the rulebase.
elif symbol.is_derived():
return
# If no value specified, play some tricks.
if val == None:
if symbol.type=="bool" or (self.hardcompile and symbol.type=="trit"):
val = cml.y
elif symbol.type == "trit":
val = cml.m
elif symbol.is_numeric():
val = 0
elif symbol.type == "string":
val = ""
if not self.modified.has_key(symbol) or symbol.eval() < val:
self.myconfiguration.set_symbol(symbol, val)
self.modified[symbol] = 1
(ok, effects, violations) = self.myconfiguration.set_symbol(symbol, val)
if ok:
if label:
symbol.setprop(label)
else:
for violation in violations:
sys.stderr.write(lang["SETFAIL"] % (`violation`, symbol.name, val))
def found_y(self, var, label=None): self.found(var, cml.y, label)
def found_m(self, var, label=None): self.found(var, cml.m, label)
def found_n(self, var, label=None): self.found(var, cml.n, label)
def yak(self, symbol):
if not self.emitted.has_key(symbol):
try:
entry = self.myconfiguration.dictionary[symbol]
if entry.prompt:
sys.stderr.write("* " + symbol + ": " + entry.prompt + "\n")
self.emitted[symbol] = 1
except KeyError:
sys.stderr.write("! Obsolete symbol: " + symbol + "\n")
def complement(self, symbol, value, baton, label):
"Force a complement set to a specified value."
symbol = self.myconfiguration.dictionary[symbol]
if not symbol.eval():
return
for driver in self.myconfiguration.dictionary.values():
if baton: baton.twirl()
if driver.is_symbol() and driver.is_logical() \
and self.myconfiguration.is_visible(driver) \
and driver.setcount == 0 \
and symbol.ancestor_of(driver):
set_to = value
if driver.type == "bool" and value == cml.m:
set_to = cml.y
self.found(driver.name, set_to, label)
def force_dependents_modular(self, symbol, legend):
"Force all trit-valued dependents of a symbol to be modular."
net_ethernet = self.myconfiguration.dictionary[symbol]
for driver in self.myconfiguration.dictionary.values():
if driver.is_symbol() and driver.type == "trit" \
and driver.eval() == cml.y \
and self.myconfiguration.is_visible(driver) \
and net_ethernet.ancestor_of(driver):
driver.setprop(legend)
self.found(driver, cml.m)
def enabled(self, symbol):
"Is a given symbol enabled?"
return self.myconfiguration.dictionary[symbol]
# Now define classes for probing and reporting the system state
class PCIDevice:
"Identification data for a device on the PCI bus."
def __init__(self, procdata):
"Initialize PCI device ID data based on what's in a /proc entry."
procdata = map(ord, procdata)
self.vendor = "%02x%02x" % (procdata[1], procdata[0])
self.device = "%02x%02x" % (procdata[3], procdata[2])
if procdata[14]:
self.subvendor = None
self.subdevice = None
else:
self.subvendor = "%02x%02x" % (procdata[45], procdata[44])
self.subdevice = "%02x%02x" % (procdata[47], procdata[46])
self.revision = "%02x" % procdata[8]
self.deviceclass = "%02x%02x" % (procdata[11], procdata[10])
self.interface = "%02x" % procdata[9]
# Here is the digest format:
# "pci: xxxx,yyyy,zz:Class:aabb,cc" or
# "pci: xxxx,yyyy,ssss,rrrr,zz:Class:aabbb,cc"
# where: xxxx,yyyy: the vendor and device id
# ssss,rrrr: the sub-vendor and sub-device id
# zz: revision
# aabb,cc: Device Class, Interface
self.digest = self.vendor + "," + self.device
if self.subvendor:
self.digest += "," + self.subvendor + "," + self.subdevice
self.digest += ",%s;Class:%s,%s\n" % (self.revision,self.deviceclass,self.interface)
def __repr__(self):
return "pci: " + self.digest
class PCIScanner:
"Encapsulate the PCI hardware registry state."
def __init__(self):
"Unpack data from the PCI hardware registry."
self.devices = []
for f in glob.glob("/proc/bus/pci/??/*"):
dfp = open(f)
self.devices.append(PCIDevice(dfp.read()))
dfp.close()
def search(self, pattern):
"Search for a device match by prefix in the digest."
pattern = re.compile(pattern, re.I)
return not not filter(lambda x, p=pattern: p.search(x.digest), self.devices)
def __repr__(self):
return "".join(map(repr, self.devices))
class FieldParser:
"Parse entire lines, or a given field, out of a file or command output."
def __init__(self, sources):
self.items = []
for item in sources:
if type(item) == type(()):
file = item[0]
field = item[1]
else:
file = item
field = None
try:
if file[0] == '/':
ifp = open(file, "r")
lines = ifp.readlines()
ifp.close()
else:
(status, output) = commands.getstatusoutput(file)
if status:
raise IOError
lines = output.split("\n")
except IOError:
continue
# No field specified, capture entire line
if not field:
self.items += lines
# Numeric (1-origin) field index, capture that
# space-separated field.
elif type(field) == type(0):
for line in lines:
fields = line.split()
if len(fields) >= field and fields[field-1] not in self.items:
self.items.append(fields[field-1])
# Regexp specified, collect group 1
else:
for line in lines:
lookfor = re.compile(field)
match = lookfor.search(line)
if match:
res = match.group(1)
if res not in self.items:
self.items.append(res)
def find(self, str, ind=0):
"Is given string or regexp pattern found in the file?"
match = re.compile(str)
result = filter(lambda x: x, map(lambda x, ma=match: ma.search(x), self.items))
if result:
result = result[ind]
if result.groups():
result = ",".join(result.groups())
return result
def __repr__(self):
return `self.items`
#
# Main sequence begins here
#
def get_arch():
# Get the architecture (taken from top-level Unix makefile).
(error, ARCH) = commands.getstatusoutput('uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/')
if error:
sys.stderr.write(lang["UNAME"])
raise SystemExit, 1
# A platform symbol has to be set, otherwise many assignments will fail
ARCHSYMBOL = re.compile("i.86").sub("x86", ARCH)
ARCHSYMBOL = ARCHSYMBOL.replace("superh", "sh")
ARCHSYMBOL = ARCHSYMBOL.replace("sparc32", "sparc")
ARCHSYMBOL = ARCHSYMBOL.replace("sparc64", "sparc")
ARCHSYMBOL = ARCHSYMBOL.upper()
return(ARCH, ARCHSYMBOL)
# We can't assume 2.1 nested scopes, so refer shared stuff to global level.
config = cpu = cpu_id = pci = isapnp = mca = usbp = usbc = usbi = None
fs = devices = m_devices = misc = net = ide = dmesg = None
modules = cpu_latch = None
fsmap = {}
reliable = {}
def autoconfigure(configuration, hardcompile, debuglevel):
global config, cpu, cpu_id, pci, isapnp, mca, usbp, usbc, usbi, fs
global devices, m_devices, misc, net, ide, dmesg, modules, cpu_latch
global fsmap, reliable
configuration.interactive = 0 # Don't deduce from visibility.
config = ConfigFile(configuration, hardcompile, debuglevel)
#
# Here is where we query the system state.
#
(ARCH, ARCHSYMBOL) = get_arch()
config.found_y(ARCHSYMBOL)
config.yak(ARCHSYMBOL)
# Get the processor type
cpu = FieldParser(("/proc/cpuinfo",))
if ARCHSYMBOL == 'SPARC':
processors = int(cpu.find("^ncpus active.*: *([0-9]*)"))
vendor = cpu.find("^cpu.*: *(.*)")
cpufam = cpu.find("^type.*: *([-A-Za-z0-9_]*)")
mod = cpu.find("^fpu.*: *(.*)")
name = cpu.find("^MMU Type.*: *(.*)")
else:
processors = int(cpu.find("^processor.*: *([0-9]*)", -1)) + 1
vendor = cpu.find("^vendor_id.*: *([-A-Za-z0-9_]*)")
cpufam = cpu.find("^cpu family.*: *([-A-Za-z0-9_]*)")
mod = cpu.find("^model.*: *([-A-Za-z0-9_]*)")
name = cpu.find("^model name.*: *(.*)")
cpu_id = vendor + ":" + cpufam + ":" + mod + ":" + name
cpu_latch = 0
# Now query for features
pci = PCIScanner()
isapnp = FieldParser((("/proc/bus/isapnp/devices", 2),))
mca = FieldParser(("/proc/mca/pos",))
usbp = FieldParser((("/proc/bus/usb/devices", "^P:.*Vendor=([A-Fa-f0-9]*)\s.*ProdID=\([A-Fa-f0-9]*\)"),))
usbc = FieldParser((("/proc/bus/usb/devices", "^D:.*Cls=([A-Fa-f0-9]*)[^A-Fa-f0-9].*Sub=([A-Fa-f0-9]*)[^A-Fa-f0-9].*Prot=([A-Fa-f0-9]*)"),))
usbi = FieldParser((("/proc/bus/usb/devices", "^I:.*Cls=([A-Fa-f0-9]*)[^A-Fa-f0-9].*Sub=([A-Fa-f0-9]*)[^A-Fa-f0-9].*Prot=([A-Fa-f0-9]*)"),))
fs = FieldParser((("/proc/mounts",3),
("/etc/mtab", 3),
("/etc/fstab", 3)))
devices = FieldParser((("/proc/devices", "[0-9]+ (.*)"),))
m_devices = FieldParser((("/proc/misc", "[0-9]+ (.*)"),))
misc = FieldParser(("/proc/iomem", "/proc/ioports", "/proc/dma", "/proc/interrupts"))
net = FieldParser((("/proc/net/sockstat","^([A-Z0-9]*): inuse [1-9]"),))
ide = FieldParser(glob.glob('/proc/ide/hd?/media'))
dmesg = FieldParser(("/var/log/dmesg", "dmesg"))
modules = FieldParser((("/proc/modules", 1),))
#
# Tests that won't fit in the rulesfile format
#
# Source: linux/i386/kernel/setup.c
if dmesg.find("Use a PAE"):
config.found_y("HIGHMEM64G")
elif dmesg.find("Use a HIGHMEM"):
config.found_y("HIGHMEM4G") ##Source: linux/i386/kernel/setup.c
else:
highmem = dmesg.find("([0-9]*)MB HIGHMEM avail.")
if not highmem:
config.found_y("NOHIGHMEM")
elif int(highmem) > 3072:
config.found_y("HIGHMEM64G")
else:
config.found_y("HIGHMEM4G")
# SMP? This test is reliable.
if processors == 0:
processors = len(filter(lambda x: x.find('processor') > -1, cpu.items))
if processors > 1:
config.found_y("SMP")
config.yak("SMP")
fsmap = {}
reliable = {}
#
# Here are the function calls used by the rules file
#
TRUE = 1
FALSE = 0
PRESENT = 1
ABSENT = 0
def DEBUG(str):
sys.stderr.write("# " + str + "\n")
# Following three tests are reliable -- that is, if PCI or PNP
# tests fail we know the feature is *not* there.
def PCI(prefix, symbol):
global pci, config
reliable[symbol] = "PCI"
if pci.search("^" + prefix):
config.yak(symbol)
config.found(symbol, None, "PCI")
def PCI_CLASS(match, symbol):
global pci, config
reliable[symbol] = "PCI_CLASS"
if pci.search("Class:" + match):
config.yak(symbol)
config.found(symbol, None, "PCI_CLASS")
def PNP(match, symbol):
global isapnp, config
reliable[symbol] = "PNP"
if isapnp.find(match):
config.yak(symbol)
config.found(symbol, None, "PNP")
def MCA(match, symbol):
global mca, config
reliable[symbol] = "MCA"
# FIXME: Not certain I've got the byte order right here
if mca.find(": " + match[2:] + " " + match[:2]):
config.yak(symbol)
config.found(symbol, None, "MCA")
# USB tests reliably detect connected devices, but the bus is hot-plug.
def USBP(match, symbol):
global usbp, config
if usbp.find(match):
config.yak(symbol)
config.found(symbol, None, "USBP")
def USBC(match, symbol):
global usbc, config
if usbc.find(match):
config.yak(symbol)
config.found(symbol, None, "USBC")
def USBI(match, symbol):
global usbi, config
if usbi.find(match):
config.yak(symbol)
config.found(symbol, None, "USBI")
# Remaining tests rely on prior kernel configuration.
def FS(match, symbol):
global fs, fsmap, config
if fs.find(r"\b" + match + r"\b"):
config.yak(symbol)
config.found(symbol, None, "FS")
# Also, build the map of file system types to symbols.
fsmap[match] = symbol
def DEV(match, symbol):
global devices, config
if devices.find(r"\b" + match + r"\b"):
config.yak(symbol)
config.found(symbol, None, "DEV")
def DEVM(match, symbol):
global m_devices, config
if m_devices.find(r"\b" + match + r"\b"):
config.yak(symbol)
config.found(symbol, None, "DEV_M")
def CONS(match, symbol):
global dmesg, config
if dmesg.find("^Console: .* " + match + " "):
config.yak(symbol)
config.found(symbol, None, "CONS")
def DMESG(match, symbol, truthval=TRUE):
global dmesg, config
if dmesg.find(match):
if truthval:
config.found(symbol, None, "DMESG")
config.yak(symbol)
else:
config.found_n(symbol, "DMESG")
def NET(match, symbol):
global net, config
if net.find(match):
config.yak(symbol)
config.found(symbol, None, "NET")
def IDE(match, symbol):
global ide, config
if ide.find(match):
config.yak(symbol)
config.found(symbol, None, "IDE")
def REQ(match, symbol):
global misc, config
if misc.find(match):
config.yak(symbol)
config.found(symbol, None, "REQ")
def CPUTYPE(match, symbol):
global cpu_latch, config
if not cpu_latch and re.search(match, cpu_id):
config.found_y(symbol, "CPUTYPE")
config.yak(symbol)
cpu_latch = 1
def CPUINFO(match, symbol, present=PRESENT, truthval=cml.y):
global cpu, config
if (not not cpu.find(match)) == present:
config.found(symbol, truthval, "CPUINFO")
if truthval:
config.yak(symbol)
def EXISTS(procfile, symbol):
global config
if os.path.exists(procfile):
config.found(symbol, None, "EXISTS")
config.yak(symbol)
else:
config.found(symbol, n, "EXISTS")
def MODULE(name, symbol):
global modules, config
if modules.find(r"\b" + name + r"\b"):
config.found(symbol, None, "MODULES")
config.yak(symbol)
def GREP(pattern, file, symbol):
global config
try:
fp = open(file)
except IOError:
return
if re.compile(pattern).search(fp.read()):
config.found(symbol, None, "GREP")
config.yak(symbol)
fp.close()
def LINKTO(file, pattern, symbol):
global config
if not os.path.exists(file):
return
file = os.readlink(file)
if re.compile(pattern).search(file):
config.found(symbol, None, "LINKTO")
config.yak(symbol)
# Use this to avoid conflicts
def PRIORITY(symbols, cnf=configuration):
global config
legend = "PRIORITY" + `symbols`
dict = cnf.dictionary
symbols = map(lambda x, d=dict: d[x], symbols)
for i in range(len(symbols) - 1):
if cml.evaluate(symbols[i]):
for j in range(i+1, len(symbols)):
cnf.set_symbol(symbols[j], n)
symbols[j].setprop(legend)
break
########################################################################
##
## Section Command Version Status
## ------------------------------------------------------------------
## /proc features EXISTS 2.5.2-pre7 Partial
########################################################################
## Section: System Features
## KernelOutput: /proc/*, /dev/*
## Detect system features based on existence of /proc and /dev/* files
DEBUG("autoconfigure.rules: EXISTS")
## These tests are unreliable; they depend on the current kernel config.
EXISTS("/proc/sysvipc", 'SYSVIPC')
EXISTS("/proc/sys", 'SYSCTL')
EXISTS("/proc/scsi/ide-scsi", 'BLK_DEV_IDESCSI')
EXISTS("/proc/scsi/imm", 'SCSI_IMM')
EXISTS("/proc/scsi/ppa", 'SCSI_PPA')
EXISTS("/dev/.devfsd", 'DEVFS_FS')
# Giacomo does not have these yet.
EXISTS("/proc/sys/net/khttpd", 'KHTTPD')
EXISTS("/proc/sys/kernel/acct", 'BSD_PROCESS_ACCT')
# This one is reliable, according to the MCA port documentation.
EXISTS("/proc/mca", 'MCA')
# This one is reliable too
EXISTS("/proc/bus/isapnp/devices", 'ISAPNP')
# Test the new probe function.
GREP("scsi0", "/proc/scsi/scsi", 'SCSI')
# These can be bogus because the file or directory in question
# is empty, or consists of a banner string that does not describe
# an actual device. We need to do more analysis here.
# EXISTS("/proc/bus/pci", 'PCI')
# EXISTS("/proc/bus/usb", 'USB')
# EXISTS("/proc/net", 'NET')
# EXISTS("/proc/scsi", 'SCSI')
# These look tempting, but they're no good unless we're on a pure
# devfs system, without support for old devices, where devices
# only exist when they're needed.
# EXISTS("/dev/agpgart", 'AGP')
# EXISTS("/dev/floppy", 'BLK_DEV_FD')
# EXISTS("/dev/fd0", 'BLK_DEV_FD')
########################################################################
## Section: Mice
## Detect the mouse type by looking at what's behind the /dev/mouse link.
## These are probes for 2.4 with the old input core
LINKTO("/dev/mouse", "psaux", 'PSMOUSE')
LINKTO("/dev/mouse", "ttyS", 'SERIAL')
LINKTO("/dev/mouse", "logibm", 'LOGIBUSMOUSE')
LINKTO("/dev/mouse", "inportbm", 'MS_BUSMOUSE')
LINKTO("/dev/mouse", "atibm", 'ATIXL_BUSMOUSE')
## These are probes for 2.5 with the new input core
LINKTO("/dev/mouse", "psaux", 'MOUSE_PS2')
LINKTO("/dev/mouse", "ttyS", 'MOUSE_SERIAL')
LINKTO("/dev/mouse", "logibm", 'MOUSE_LOGIBM')
LINKTO("/dev/mouse", "inportbm", 'MOUSE_INPORT')
LINKTO("/dev/mouse", "atibm", 'MOUSE_ATIXL')
########################################################################
## Section: IDE devices
## KernelOutput: /proc/ide/hd?/media
## Detect IDE devices based on contents of /proc files
## These tests are unreliable; they depend on the current kernel config.
IDE('disk', 'BLK_DEV_IDEDISK')
IDE('cdrom', 'BLK_DEV_IDECD')
IDE('tape', 'BLK_DEV_IDETAPE')
IDE('floppy', 'BLK_DEV_FLOPPY')
EXISTS("/dev/ide/ide0", 'BLK_DEV_IDE')
EXISTS("/dev/ide/ide1", 'BLK_DEV_IDE')
EXISTS('/proc/ide/piix', 'PIIX_TUNING')
########################################################################
# Miscellaneous tests that replace Giacomo's ad-hoc ones.
DEV('pty', 'UNIX98_PTYS')
REQ('SMBus', 'I2C')
REQ('ATI.*Mach64', 'FB_ATY')
#FS(r'xfs', 'XFS_FS')
########################################################################
# This is a near complete set of MCA probes for hardware supported under
# Linux, according to MCA maintainer David Weinehall. The exception is
# the IBMTR card, which cannot be probed reliably.
if config.enabled("MCA"):
MCA("ddff", 'BLK_DEV_PS2')
MCA("df9f", 'BLK_DEV_PS2')
MCA("628b", 'EEXPRESS')
MCA("627[cd]", 'EL3')
MCA("62db", 'EL3')
MCA("62f6", 'EL3')
MCA("62f7", 'EL3')
MCA("6042", 'ELMC')
MCA("0041", 'ELMC_II')
MCA("8ef5", 'ELMC_II')
MCA("61c[89]", 'ULTRAMCA')
MCA("6fc[012]", 'ULTRAMCA')
MCA("efd[45]", 'ULTRAMCA')
MCA("efe5", 'ULTRAMCA')
MCA("641[036]", 'AT1700')
MCA("6def", 'DEPCA')
MCA("6afd", 'SKMC')
MCA("6be9", 'SKMC')
MCA("6354", 'NE2_MCA')
MCA("7154", 'NE2_MCA')
MCA("56ea", 'NE2_MCA')
MCA("ffe0", 'IBMLANA')
MCA("8ef[8cdef]", 'SCSI_IBMMCA')
MCA("5137", 'SCSI_FD_MCS')
MCA("60e9", 'SCSI_FD_MCS')
MCA("6127", 'SCSI_FD_MCS')
MCA("0092", 'SCSI_NCR_D700')
MCA("7f4c", 'SCSI_MCA_53C9X')
MCA("0f1f", 'SCSI_AHA_1542')
MCA("002d", 'MADGEMC')
MCA("6ec6", 'SMCTR')
MCA("62f3", 'SOUND_SB')
MCA("7113", 'SOUND_SB')
########################################################################
## This requires Paul Gortmaker's EISA ID patch.
REQ("EISA", "EISA") # Someday, IOPORTS()
########################################################################
## The rest of the table is read in from Giacomo's Catenazzi's rulesfile.
execfile(rulesfile)
# If it has a reliable test, but was not found by any test, switch it off.
# We do things in this order to avoid losing on symbols that are only set
# to n by PNP and PCI tests.
baton = cml.Baton(lang["TURNOFF"])
for symbol in configuration.dictionary.values():
baton.twirl()
if symbol.is_symbol() and configuration.saveable(symbol) \
and reliable.has_key(symbol.name) and not cml.evaluate(symbol):
config.found(symbol.name, n, reliable[symbol.name])
baton.end()
########################################################################
## Resolve conflicts.
PRIORITY(("SCSI_SYM53C8XX_2", "SCSI_SYM53C8XX", \
"SCSI_NCR53C8XX", "SCSI_GENERIC_NCR5380"))
PRIORITY(("DE2104X", "TULIP"))
## End of probe logic.
##
########################################################################
# More tests that don't fit the rulesfile format
# Filesystem, bus, and controller for root cannot be modules.
sys.stderr.write(lang["ROOTLOOK"])
fstab_to_bus_map = {
r"^/dev/sd" : ("SCSI",),
r"^/dev/hd" : ("IDE",),
r"\bnfs\b" : ("NFS_FS", "NFS_ROOT", "NET"),
}
ifp = open("/etc/mtab", "r")
while 1:
line = ifp.readline()
if not line:
break
fields = line.split()
mountpoint = fields[1]
fstype = fields[2]
if mountpoint == "/":
# Figure out the drive type of the root partition.
rootsymbols = []
for (pattern, symbols) in fstab_to_bus_map.items():
if re.compile(pattern).search(line):
rootsymbols = list(symbols)
if fsmap.has_key(fstype):
rootsymbols.append(fsmap[fstype])
if not rootsymbols:
sys.stderr.write(lang["ROOTWARN"])
break
# We should have a list of `buses' now...
for roottype in rootsymbols:
# First we have to force the bus the drive is on to y.
config.found(roottype, y, "Root filesystem")
sys.stderr.write(lang["ROOTFS"] % roottype)
# Then force all bootable hardware previously set modular and
# dependent on this bus to y.
bus = configuration.dictionary[roottype]
for symbol in configuration.dictionary.values():
if cml.evaluate(symbol) == m \
and symbol.hasprop("BOOTABLE") \
and bus.ancestor_of(symbol):
config.found(symbol.name, y, "Root filesystem")
sys.stderr.write(lang["ROOTHW"] % symbol.name)
ifp.close()
# PTY devices
ptycount = dmesg.find('pty: ([0-9]*) Unix98 ptys')
if ptycount:
config.found("UNIX98_PTY_COUNT", int(ptycount))
# Helper functions.
def grepcmd(pattern, cmd):
"Test for PATTERN in the output of COMMAND."
(status, output) = commands.getstatusoutput(cmd)
return status == 0 and re.compile(pattern).search(output)
# Apply those sanity checks
# Handle a subtle gotcha: if there are multiple NICs, they must be modular.
if grepcmd("eth[1-3]", "/sbin/ifconfig -a"):
config.force_dependents_modular("NET_ETHERNET",
"Multiple NICs must be modular")
# Now freeze complement sets. With any luck, this will reduce the
# set of drivers the user actually has to specify to zero.
#
# Giacomo writes:
# "BTW I have done some test with USB, and it seems that you can
# hotplug USB devices, also with hardcored drivers, and the driver
# is initialized only at the hotplug event.
# (This mean that USB devices can be set also to 'y', without
# losing functionality.
# This is not true for other 'hotplug' devices. I.e. my
# parport ZIP will be loaded only at boot time (hardcoded) or
# at modules loading (module)."
#
# So far I have not done anything about this.
if not hardcompile:
b = cml.Baton(lang["COMPLEMENT"])
config.complement("HOTPLUG_PCI",cml.m, b, "PCI_HOTPLUG is a hot-plug bus")
config.complement("USB", cml.m, b, "USB is a hot-plug bus")
config.complement("PCMCIA", cml.m, b, "PCMCIA is a hot-plug bus")
config.complement("IEEE1394", cml.m, b, "IEEE1394 ia a hot-plug bus")
b.end(lang["DONE"])
DEBUG(lang["COMPLETE"])
def process_define(myconfiguration, val, freeze):
"Process a -d=xxx or -D=xxx option."
parts = val.split("=")
sym = parts[0]
if myconfiguration.dictionary.has_key(sym):
sym = myconfiguration.dictionary[sym]
else:
myconfiguration.errout.write(lang["SYMUNKNOWN"] % (`sym`,))
sys.exit(1)
if sym.is_derived():
myconfiguration.debug_emit(1, lang["DERIVED"] % (`sym`,))
sys.exit(1)
elif sym.is_logical():
if len(parts) == 1:
val = 'y'
elif parts[1] == 'y':
val = 'y'
elif parts[1] == 'm':
myconfiguration.trits_enabled = 1
val = 'm'
elif parts[1] == 'n':
val = 'n'
elif len(parts) == 1:
print lang["NOCMDLINE"] % (`sym`,)
sys.exit(1)
else:
val = parts[1]
(ok, effects, violation) = myconfiguration.set_symbol(sym,
myconfiguration.value_from_string(sym, val),
freeze)
if effects:
sys.stderr.write(lang["EFFECTS"] + "\n")
sys.stderr.write("\n".join(effects) + "\n\n")
if not ok:
sys.stderr.write((lang["ROLLBACK"] % (sym.name, val)) + "\n")
sys.stderr.write("\n".join(violation)+"\n")
if __name__ == "__main__":
# Process command-line options
try:
(options, arguments) = getopt.getopt(sys.argv[1:], "d:D:hr:st:v",
("hardcompile",
"rules=",
"standalone",
"target=",
"verbose"))
except getopt.GetoptError:
sys.stderr.write(lang["OPTUNKNOWN"])
raise SystemExit, 2
autoprobe_debug = hardcompile = standalone = 0
objtree = os.environ.get("KBUILD_OBJTREE")
rulesfile = "autoconfigure.rules"
freeze_em = []
set_em = []
for (opt, val) in options:
if opt == '-D':
freeze_em.append(val)
elif opt == '-d':
set_em.append(val)
elif opt in ("-v", "--verbose"):
autoprobe_debug += 1
elif opt in ("--hardcompile", "-h"):
hardcompile = 1
elif opt in ("--rules", "-r"):
rulesfile = val
elif opt in ("--standalone", "-s"):
standalone = 1
elif opt in ("--target", "-t"):
objtree = os.path.expanduser(val)
if objtree == None:
objtree = "."
#
# Now use the rulebase information
#
rulebase = os.path.join(objtree, "rules.out")
if not os.path.exists(rulebase):
sys.stderr.write("autoconfigure: rulebase %s does not exist!\n" % rulebase)
raise SystemExit, 1
configuration = cmlsystem.CMLSystem(rulebase)
if not cmlsystem:
sys.stderr.write("autoconfigure: rulebase %s could not be read!\n" % rulebase)
raise SystemExit, 1
# Autoconfigure into the configuration object.
for sym in freeze_em:
process_define(configuration, sym, 1)
for sym in set_em:
process_define(configuration, sym, 0)
autoconfigure(configuration, hardcompile, autoprobe_debug)
# Write out this configuration, we're done.
if standalone:
configuration.save(sys.stdout, None, "normal")
else:
configuration.save(sys.stdout, None, "probe")
# End
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