+++ /dev/null
-#!/usr/bin/python
-# Copyright (C) 2011 Red Hat, Inc., Michael S. Tsirkin <mst@redhat.com>
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# 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, see <http://www.gnu.org/licenses/>.
-
-# Process mixed ASL/AML listing (.lst file) produced by iasl -l
-# Locate and execute ACPI_EXTRACT directives, output offset info
-#
-# Documentation of ACPI_EXTRACT_* directive tags:
-#
-# These directive tags output offset information from AML for BIOS runtime
-# table generation.
-# Each directive is of the form:
-# ACPI_EXTRACT_<TYPE> <array_name> <Operator> (...)
-# and causes the extractor to create an array
-# named <array_name> with offset, in the generated AML,
-# of an object of a given type in the following <Operator>.
-#
-# A directive must fit on a single code line.
-#
-# Object type in AML is verified, a mismatch causes a build failure.
-#
-# Directives and operators currently supported are:
-# ACPI_EXTRACT_NAME_DWORD_CONST - extract a Dword Const object from Name()
-# ACPI_EXTRACT_NAME_WORD_CONST - extract a Word Const object from Name()
-# ACPI_EXTRACT_NAME_BYTE_CONST - extract a Byte Const object from Name()
-# ACPI_EXTRACT_METHOD_STRING - extract a NameString from Method()
-# ACPI_EXTRACT_NAME_STRING - extract a NameString from Name()
-# ACPI_EXTRACT_PROCESSOR_START - start of Processor() block
-# ACPI_EXTRACT_PROCESSOR_STRING - extract a NameString from Processor()
-# ACPI_EXTRACT_PROCESSOR_END - offset at last byte of Processor() + 1
-# ACPI_EXTRACT_PKG_START - start of Package block
-#
-# ACPI_EXTRACT_ALL_CODE - create an array storing the generated AML bytecode
-#
-# ACPI_EXTRACT is not allowed anywhere else in code, except in comments.
-
-import re;
-import sys;
-import fileinput;
-
-aml = []
-asl = []
-output = {}
-debug = ""
-
-class asl_line:
- line = None
- lineno = None
- aml_offset = None
-
-def die(diag):
- sys.stderr.write("Error: %s; %s\n" % (diag, debug))
- sys.exit(1)
-
-#Store an ASL command, matching AML offset, and input line (for debugging)
-def add_asl(lineno, line):
- l = asl_line()
- l.line = line
- l.lineno = lineno
- l.aml_offset = len(aml)
- asl.append(l)
-
-#Store an AML byte sequence
-#Verify that offset output by iasl matches # of bytes so far
-def add_aml(offset, line):
- o = int(offset, 16);
- # Sanity check: offset must match size of code so far
- if (o != len(aml)):
- die("Offset 0x%x != 0x%x" % (o, len(aml)))
- # Strip any trailing dots and ASCII dump after "
- line = re.sub(r'\s*\.*\s*".*$',"", line)
- # Strip traling whitespace
- line = re.sub(r'\s+$',"", line)
- # Strip leading whitespace
- line = re.sub(r'^\s+',"", line)
- # Split on whitespace
- code = re.split(r'\s+', line)
- for c in code:
- # Require a legal hex number, two digits
- if (not(re.search(r'^[0-9A-Fa-f][0-9A-Fa-f]$', c))):
- die("Unexpected octet %s" % c);
- aml.append(int(c, 16));
-
-# Process aml bytecode array, decoding AML
-def aml_pkglen_bytes(offset):
- # PkgLength can be multibyte. Bits 8-7 give the # of extra bytes.
- pkglenbytes = aml[offset] >> 6;
- return pkglenbytes + 1
-
-def aml_pkglen(offset):
- pkgstart = offset
- pkglenbytes = aml_pkglen_bytes(offset)
- pkglen = aml[offset] & 0x3F
- # If multibyte, first nibble only uses bits 0-3
- if ((pkglenbytes > 1) and (pkglen & 0x30)):
- die("PkgLen bytes 0x%x but first nibble 0x%x expected 0x0X" %
- (pkglen, pkglen))
- offset += 1
- pkglenbytes -= 1
- for i in range(pkglenbytes):
- pkglen |= aml[offset + i] << (i * 8 + 4)
- if (len(aml) < pkgstart + pkglen):
- die("PckgLen 0x%x at offset 0x%x exceeds AML size 0x%x" %
- (pkglen, offset, len(aml)))
- return pkglen
-
-# Given method offset, find its NameString offset
-def aml_method_string(offset):
- #0x14 MethodOp PkgLength NameString MethodFlags TermList
- if (aml[offset] != 0x14):
- die( "Method offset 0x%x: expected 0x14 actual 0x%x" %
- (offset, aml[offset]));
- offset += 1;
- pkglenbytes = aml_pkglen_bytes(offset)
- offset += pkglenbytes;
- return offset;
-
-# Given name offset, find its NameString offset
-def aml_name_string(offset):
- #0x08 NameOp NameString DataRef
- if (aml[offset] != 0x08):
- die( "Name offset 0x%x: expected 0x08 actual 0x%x" %
- (offset, aml[offset]));
- offset += 1
- # Block Name Modifier. Skip it.
- if (aml[offset] == 0x5c or aml[offset] == 0x5e):
- offset += 1
- return offset;
-
-# Given data offset, find variable length byte buffer offset
-def aml_data_buffer(offset, length):
- #0x11 PkgLength BufferSize ByteList
- if (length > 63):
- die( "Name offset 0x%x: expected a one byte PkgLength (length<=63)" %
- (offset));
- expect = [0x11, length+3, 0x0A, length]
- if (aml[offset:offset+4] != expect):
- die( "Name offset 0x%x: expected %s actual %s" %
- (offset, expect, aml[offset:offset+4]))
- return offset + len(expect)
-
-# Given data offset, find dword const offset
-def aml_data_dword_const(offset):
- #0x08 NameOp NameString DataRef
- if (aml[offset] != 0x0C):
- die( "Name offset 0x%x: expected 0x0C actual 0x%x" %
- (offset, aml[offset]));
- return offset + 1;
-
-# Given data offset, find word const offset
-def aml_data_word_const(offset):
- #0x08 NameOp NameString DataRef
- if (aml[offset] != 0x0B):
- die( "Name offset 0x%x: expected 0x0B actual 0x%x" %
- (offset, aml[offset]));
- return offset + 1;
-
-# Given data offset, find byte const offset
-def aml_data_byte_const(offset):
- #0x08 NameOp NameString DataRef
- if (aml[offset] != 0x0A):
- die( "Name offset 0x%x: expected 0x0A actual 0x%x" %
- (offset, aml[offset]));
- return offset + 1;
-
-# Find name'd buffer
-def aml_name_buffer(offset, length):
- return aml_data_buffer(aml_name_string(offset) + 4, length)
-
-# Given name offset, find dword const offset
-def aml_name_dword_const(offset):
- return aml_data_dword_const(aml_name_string(offset) + 4)
-
-# Given name offset, find word const offset
-def aml_name_word_const(offset):
- return aml_data_word_const(aml_name_string(offset) + 4)
-
-# Given name offset, find byte const offset
-def aml_name_byte_const(offset):
- return aml_data_byte_const(aml_name_string(offset) + 4)
-
-def aml_device_start(offset):
- #0x5B 0x82 DeviceOp PkgLength NameString
- if ((aml[offset] != 0x5B) or (aml[offset + 1] != 0x82)):
- die( "Name offset 0x%x: expected 0x5B 0x82 actual 0x%x 0x%x" %
- (offset, aml[offset], aml[offset + 1]));
- return offset
-
-def aml_device_string(offset):
- #0x5B 0x82 DeviceOp PkgLength NameString
- start = aml_device_start(offset)
- offset += 2
- pkglenbytes = aml_pkglen_bytes(offset)
- offset += pkglenbytes
- return offset
-
-def aml_device_end(offset):
- start = aml_device_start(offset)
- offset += 2
- pkglenbytes = aml_pkglen_bytes(offset)
- pkglen = aml_pkglen(offset)
- return offset + pkglen
-
-def aml_processor_start(offset):
- #0x5B 0x83 ProcessorOp PkgLength NameString ProcID
- if ((aml[offset] != 0x5B) or (aml[offset + 1] != 0x83)):
- die( "Name offset 0x%x: expected 0x5B 0x83 actual 0x%x 0x%x" %
- (offset, aml[offset], aml[offset + 1]));
- return offset
-
-def aml_processor_string(offset):
- #0x5B 0x83 ProcessorOp PkgLength NameString ProcID
- start = aml_processor_start(offset)
- offset += 2
- pkglenbytes = aml_pkglen_bytes(offset)
- offset += pkglenbytes
- return offset
-
-def aml_processor_end(offset):
- start = aml_processor_start(offset)
- offset += 2
- pkglenbytes = aml_pkglen_bytes(offset)
- pkglen = aml_pkglen(offset)
- return offset + pkglen
-
-def aml_package_start(offset):
- offset = aml_name_string(offset) + 4
- # 0x12 PkgLength NumElements PackageElementList
- if (aml[offset] != 0x12):
- die( "Name offset 0x%x: expected 0x12 actual 0x%x" %
- (offset, aml[offset]));
- offset += 1
- return offset + aml_pkglen_bytes(offset) + 1
-
-lineno = 0
-for line in fileinput.input():
- # Strip trailing newline
- line = line.rstrip();
- # line number and debug string to output in case of errors
- lineno = lineno + 1
- debug = "input line %d: %s" % (lineno, line)
- #ASL listing: space, then line#, then ...., then code
- pasl = re.compile('^\s+([0-9]+)(:\s\s|\.\.\.\.)\s*')
- m = pasl.search(line)
- if (m):
- add_asl(lineno, pasl.sub("", line));
- # AML listing: offset in hex, then ...., then code
- paml = re.compile('^([0-9A-Fa-f]+)(:\s\s|\.\.\.\.)\s*')
- m = paml.search(line)
- if (m):
- add_aml(m.group(1), paml.sub("", line))
-
-# Now go over code
-# Track AML offset of a previous non-empty ASL command
-prev_aml_offset = -1
-for i in range(len(asl)):
- debug = "input line %d: %s" % (asl[i].lineno, asl[i].line)
-
- l = asl[i].line
-
- # skip if not an extract directive
- a = len(re.findall(r'ACPI_EXTRACT', l))
- if (not a):
- # If not empty, store AML offset. Will be used for sanity checks
- # IASL seems to put {}. at random places in the listing.
- # Ignore any non-words for the purpose of this test.
- m = re.search(r'\w+', l)
- if (m):
- prev_aml_offset = asl[i].aml_offset
- continue
-
- if (a > 1):
- die("Expected at most one ACPI_EXTRACT per line, actual %d" % a)
-
- mext = re.search(r'''
- ^\s* # leading whitespace
- /\*\s* # start C comment
- (ACPI_EXTRACT_\w+) # directive: group(1)
- \s+ # whitspace separates directive from array name
- (\w+) # array name: group(2)
- \s*\*/ # end of C comment
- \s*$ # trailing whitespace
- ''', l, re.VERBOSE)
- if (not mext):
- die("Stray ACPI_EXTRACT in input")
-
- # previous command must have produced some AML,
- # otherwise we are in a middle of a block
- if (prev_aml_offset == asl[i].aml_offset):
- die("ACPI_EXTRACT directive in the middle of a block")
-
- directive = mext.group(1)
- array = mext.group(2)
- offset = asl[i].aml_offset
-
- if (directive == "ACPI_EXTRACT_ALL_CODE"):
- if array in output:
- die("%s directive used more than once" % directive)
- output[array] = aml
- continue
- if (directive == "ACPI_EXTRACT_NAME_BUFFER8"):
- offset = aml_name_buffer(offset, 8)
- elif (directive == "ACPI_EXTRACT_NAME_BUFFER16"):
- offset = aml_name_buffer(offset, 16)
- elif (directive == "ACPI_EXTRACT_NAME_DWORD_CONST"):
- offset = aml_name_dword_const(offset)
- elif (directive == "ACPI_EXTRACT_NAME_WORD_CONST"):
- offset = aml_name_word_const(offset)
- elif (directive == "ACPI_EXTRACT_NAME_BYTE_CONST"):
- offset = aml_name_byte_const(offset)
- elif (directive == "ACPI_EXTRACT_NAME_STRING"):
- offset = aml_name_string(offset)
- elif (directive == "ACPI_EXTRACT_METHOD_STRING"):
- offset = aml_method_string(offset)
- elif (directive == "ACPI_EXTRACT_DEVICE_START"):
- offset = aml_device_start(offset)
- elif (directive == "ACPI_EXTRACT_DEVICE_STRING"):
- offset = aml_device_string(offset)
- elif (directive == "ACPI_EXTRACT_DEVICE_END"):
- offset = aml_device_end(offset)
- elif (directive == "ACPI_EXTRACT_PROCESSOR_START"):
- offset = aml_processor_start(offset)
- elif (directive == "ACPI_EXTRACT_PROCESSOR_STRING"):
- offset = aml_processor_string(offset)
- elif (directive == "ACPI_EXTRACT_PROCESSOR_END"):
- offset = aml_processor_end(offset)
- elif (directive == "ACPI_EXTRACT_PKG_START"):
- offset = aml_package_start(offset)
- else:
- die("Unsupported directive %s" % directive)
-
- if array not in output:
- output[array] = []
- output[array].append(offset)
-
-debug = "at end of file"
-
-def get_value_type(maxvalue):
- #Use type large enough to fit the table
- if (maxvalue >= 0x10000):
- return "int"
- elif (maxvalue >= 0x100):
- return "short"
- else:
- return "char"
-
-# Pretty print output
-for array in output.keys():
- otype = get_value_type(max(output[array]))
- odata = []
- for value in output[array]:
- odata.append("0x%x" % value)
- sys.stdout.write("static unsigned %s %s[] = {\n" % (otype, array))
- sys.stdout.write(",\n".join(odata))
- sys.stdout.write('\n};\n');
Code Review / kvmfornfv.git / blobdiff