[qemu.git] / scripts / acpi_extract.py

#!/usr/bin/python
# Copyright (C) 2011 Red Hat, Inc., Michael S. Tsirkin <[email protected]>
#
# 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 8 byte buffer offset
def aml_data_buffer8(offset):
    #0x08 NameOp NameString DataRef
    expect = [0x11, 0x0B, 0x0A, 0x08]
    if (aml[offset:offset+4] != expect):
        die( "Name offset 0x%x: expected %s actual %s" %
             (offset, aml[offset:offset+4], expect))
    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 buffer8
def aml_name_buffer8(offset):
    return aml_data_buffer8(aml_name_string(offset) + 4)

# 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_buffer8(offset)
    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');
Commit	Line	Data
74523b85 MT	1	#!/usr/bin/python
	2	# Copyright (C) 2011 Red Hat, Inc., Michael S. Tsirkin <[email protected]>
	3	#
	4	# This program is free software; you can redistribute it and/or modify
	5	# it under the terms of the GNU General Public License as published by
	6	# the Free Software Foundation; either version 2 of the License, or
	7	# (at your option) any later version.
	8	#
	9	# This program is distributed in the hope that it will be useful,
	10	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	# GNU General Public License for more details.
	13	#
	14	# You should have received a copy of the GNU General Public License along
	15	# with this program; if not, see <http://www.gnu.org/licenses/>.
	16
	17	# Process mixed ASL/AML listing (.lst file) produced by iasl -l
	18	# Locate and execute ACPI_EXTRACT directives, output offset info
	19	#
	20	# Documentation of ACPI_EXTRACT_* directive tags:
	21	#
	22	# These directive tags output offset information from AML for BIOS runtime
	23	# table generation.
	24	# Each directive is of the form:
	25	# ACPI_EXTRACT_<TYPE> <array_name> <Operator> (...)
	26	# and causes the extractor to create an array
	27	# named <array_name> with offset, in the generated AML,
	28	# of an object of a given type in the following <Operator>.
	29	#
	30	# A directive must fit on a single code line.
	31	#
	32	# Object type in AML is verified, a mismatch causes a build failure.
	33	#
	34	# Directives and operators currently supported are:
	35	# ACPI_EXTRACT_NAME_DWORD_CONST - extract a Dword Const object from Name()
	36	# ACPI_EXTRACT_NAME_WORD_CONST - extract a Word Const object from Name()
	37	# ACPI_EXTRACT_NAME_BYTE_CONST - extract a Byte Const object from Name()
	38	# ACPI_EXTRACT_METHOD_STRING - extract a NameString from Method()
	39	# ACPI_EXTRACT_NAME_STRING - extract a NameString from Name()
	40	# ACPI_EXTRACT_PROCESSOR_START - start of Processor() block
	41	# ACPI_EXTRACT_PROCESSOR_STRING - extract a NameString from Processor()
	42	# ACPI_EXTRACT_PROCESSOR_END - offset at last byte of Processor() + 1
	43	# ACPI_EXTRACT_PKG_START - start of Package block
	44	#
	45	# ACPI_EXTRACT_ALL_CODE - create an array storing the generated AML bytecode
	46	#
	47	# ACPI_EXTRACT is not allowed anywhere else in code, except in comments.
	48
	49	import re;
	50	import sys;
	51	import fileinput;
	52
	53	aml = []
	54	asl = []
	55	output = {}
	56	debug = ""
	57
	58	class asl_line:
	59	line = None
	60	lineno = None
	61	aml_offset = None
	62
	63	def die(diag):
	64	sys.stderr.write("Error: %s; %s\n" % (diag, debug))
65	sys.exit(1)
66
67	#Store an ASL command, matching AML offset, and input line (for debugging)
68	def add_asl(lineno, line):
69	l = asl_line()
70	l.line = line
71	l.lineno = lineno
72	l.aml_offset = len(aml)
73	asl.append(l)
74
75	#Store an AML byte sequence
76	#Verify that offset output by iasl matches # of bytes so far
77	def add_aml(offset, line):
78	o = int(offset, 16);
79	# Sanity check: offset must match size of code so far
80	if (o != len(aml)):
81	die("Offset 0x%x != 0x%x" % (o, len(aml)))
82	# Strip any trailing dots and ASCII dump after "
83	line = re.sub(r'\s\.\s".$',"", line)
84	# Strip traling whitespace
85	line = re.sub(r'\s+$',"", line)
86	# Strip leading whitespace
87	line = re.sub(r'^\s+',"", line)
88	# Split on whitespace
89	code = re.split(r'\s+', line)
90	for c in code:
91	# Require a legal hex number, two digits
92	if (not(re.search(r'^[0-9A-Fa-f][0-9A-Fa-f]$', c))):
93	die("Unexpected octet %s" % c);
94	aml.append(int(c, 16));
95
96	# Process aml bytecode array, decoding AML
97	def aml_pkglen_bytes(offset):
98	# PkgLength can be multibyte. Bits 8-7 give the # of extra bytes.
99	pkglenbytes = aml[offset] >> 6;
100	return pkglenbytes + 1
101
102	def aml_pkglen(offset):
103	pkgstart = offset
104	pkglenbytes = aml_pkglen_bytes(offset)
105	pkglen = aml[offset] & 0x3F
106	# If multibyte, first nibble only uses bits 0-3
107	if ((pkglenbytes > 1) and (pkglen & 0x30)):
108	die("PkgLen bytes 0x%x but first nibble 0x%x expected 0x0X" %
109	(pkglen, pkglen))
110	offset += 1
111	pkglenbytes -= 1
112	for i in range(pkglenbytes):
113	pkglen \|= aml[offset + i] << (i * 8 + 4)
114	if (len(aml) < pkgstart + pkglen):
115	die("PckgLen 0x%x at offset 0x%x exceeds AML size 0x%x" %
116	(pkglen, offset, len(aml)))
117	return pkglen
118
119	# Given method offset, find its NameString offset
120	def aml_method_string(offset):
121	#0x14 MethodOp PkgLength NameString MethodFlags TermList
122	if (aml[offset] != 0x14):
123	die( "Method offset 0x%x: expected 0x14 actual 0x%x" %
124	(offset, aml[offset]));
125	offset += 1;
126	pkglenbytes = aml_pkglen_bytes(offset)
127	offset += pkglenbytes;
128	return offset;
129
130	# Given name offset, find its NameString offset
131	def aml_name_string(offset):
132	#0x08 NameOp NameString DataRef
133	if (aml[offset] != 0x08):
134	die( "Name offset 0x%x: expected 0x08 actual 0x%x" %
135	(offset, aml[offset]));
136	offset += 1
137	# Block Name Modifier. Skip it.
138	if (aml[offset] == 0x5c or aml[offset] == 0x5e):
139	offset += 1
140	return offset;
141
142	# Given data offset, find 8 byte buffer offset
143	def aml_data_buffer8(offset):
144	#0x08 NameOp NameString DataRef
145	expect = [0x11, 0x0B, 0x0A, 0x08]
146	if (aml[offset:offset+4] != expect):
147	die( "Name offset 0x%x: expected %s actual %s" %
148	(offset, aml[offset:offset+4], expect))
149	return offset + len(expect)
150
151	# Given data offset, find dword const offset
152	def aml_data_dword_const(offset):
153	#0x08 NameOp NameString DataRef
154	if (aml[offset] != 0x0C):
155	die( "Name offset 0x%x: expected 0x0C actual 0x%x" %
156	(offset, aml[offset]));
157	return offset + 1;
158
159	# Given data offset, find word const offset
160	def aml_data_word_const(offset):
161	#0x08 NameOp NameString DataRef
162	if (aml[offset] != 0x0B):
163	die( "Name offset 0x%x: expected 0x0B actual 0x%x" %
164	(offset, aml[offset]));
165	return offset + 1;
166
167	# Given data offset, find byte const offset
168	def aml_data_byte_const(offset):
169	#0x08 NameOp NameString DataRef
170	if (aml[offset] != 0x0A):
171	die( "Name offset 0x%x: expected 0x0A actual 0x%x" %
172	(offset, aml[offset]));
173	return offset + 1;
174
175	# Find name'd buffer8
176	def aml_name_buffer8(offset):
177	return aml_data_buffer8(aml_name_string(offset) + 4)
178
179	# Given name offset, find dword const offset
180	def aml_name_dword_const(offset):
181	return aml_data_dword_const(aml_name_string(offset) + 4)
182
183	# Given name offset, find word const offset
184	def aml_name_word_const(offset):
185	return aml_data_word_const(aml_name_string(offset) + 4)
186
187	# Given name offset, find byte const offset
188	def aml_name_byte_const(offset):
189	return aml_data_byte_const(aml_name_string(offset) + 4)
190
191	def aml_device_start(offset):
192	#0x5B 0x82 DeviceOp PkgLength NameString
193	if ((aml[offset] != 0x5B) or (aml[offset + 1] != 0x82)):
194	die( "Name offset 0x%x: expected 0x5B 0x82 actual 0x%x 0x%x" %
195	(offset, aml[offset], aml[offset + 1]));
196	return offset
197
198	def aml_device_string(offset):
199	#0x5B 0x82 DeviceOp PkgLength NameString
200	start = aml_device_start(offset)
201	offset += 2
202	pkglenbytes = aml_pkglen_bytes(offset)
203	offset += pkglenbytes
204	return offset
205
206	def aml_device_end(offset):
207	start = aml_device_start(offset)
208	offset += 2
209	pkglenbytes = aml_pkglen_bytes(offset)
210	pkglen = aml_pkglen(offset)
211	return offset + pkglen
212
213	def aml_processor_start(offset):
214	#0x5B 0x83 ProcessorOp PkgLength NameString ProcID
215	if ((aml[offset] != 0x5B) or (aml[offset + 1] != 0x83)):
216	die( "Name offset 0x%x: expected 0x5B 0x83 actual 0x%x 0x%x" %
217	(offset, aml[offset], aml[offset + 1]));
218	return offset
219
220	def aml_processor_string(offset):
221	#0x5B 0x83 ProcessorOp PkgLength NameString ProcID
222	start = aml_processor_start(offset)
223	offset += 2
224	pkglenbytes = aml_pkglen_bytes(offset)
225	offset += pkglenbytes
226	return offset
227
228	def aml_processor_end(offset):
229	start = aml_processor_start(offset)
230	offset += 2
231	pkglenbytes = aml_pkglen_bytes(offset)
232	pkglen = aml_pkglen(offset)
233	return offset + pkglen
234
235	def aml_package_start(offset):
236	offset = aml_name_string(offset) + 4
237	# 0x12 PkgLength NumElements PackageElementList
238	if (aml[offset] != 0x12):
239	die( "Name offset 0x%x: expected 0x12 actual 0x%x" %
240	(offset, aml[offset]));
241	offset += 1
242	return offset + aml_pkglen_bytes(offset) + 1
243
244	lineno = 0
245	for line in fileinput.input():
246	# Strip trailing newline
247	line = line.rstrip();
248	# line number and debug string to output in case of errors
249	lineno = lineno + 1
250	debug = "input line %d: %s" % (lineno, line)
251	#ASL listing: space, then line#, then ...., then code
252	pasl = re.compile('^\s+([0-9]+)(:\s\s\|\.\.\.\.)\s*')
253	m = pasl.search(line)
254	if (m):
255	add_asl(lineno, pasl.sub("", line));
256	# AML listing: offset in hex, then ...., then code
257	paml = re.compile('^([0-9A-Fa-f]+)(:\s\s\|\.\.\.\.)\s*')
258	m = paml.search(line)
259	if (m):
260	add_aml(m.group(1), paml.sub("", line))
261
262	# Now go over code
263	# Track AML offset of a previous non-empty ASL command
264	prev_aml_offset = -1
265	for i in range(len(asl)):
266	debug = "input line %d: %s" % (asl[i].lineno, asl[i].line)
267
268	l = asl[i].line
269
270	# skip if not an extract directive
271	a = len(re.findall(r'ACPI_EXTRACT', l))
272	if (not a):
273	# If not empty, store AML offset. Will be used for sanity checks
274	# IASL seems to put {}. at random places in the listing.
275	# Ignore any non-words for the purpose of this test.
276	m = re.search(r'\w+', l)
277	if (m):
278	prev_aml_offset = asl[i].aml_offset
279	continue
280
281	if (a > 1):
282	die("Expected at most one ACPI_EXTRACT per line, actual %d" % a)
283
284	mext = re.search(r'''
285	^\s* # leading whitespace
286	/\\s # start C comment
287	(ACPI_EXTRACT_\w+) # directive: group(1)
288	\s+ # whitspace separates directive from array name
289	(\w+) # array name: group(2)
290	\s\/ # end of C comment
291	\s*$ # trailing whitespace
292	''', l, re.VERBOSE)
293	if (not mext):
294	die("Stray ACPI_EXTRACT in input")
295
296	# previous command must have produced some AML,
297	# otherwise we are in a middle of a block
298	if (prev_aml_offset == asl[i].aml_offset):
299	die("ACPI_EXTRACT directive in the middle of a block")
300
301	directive = mext.group(1)
302	array = mext.group(2)
303	offset = asl[i].aml_offset
304
305	if (directive == "ACPI_EXTRACT_ALL_CODE"):
306	if array in output:
307	die("%s directive used more than once" % directive)
308	output[array] = aml
309	continue
310	if (directive == "ACPI_EXTRACT_NAME_BUFFER8"):
311	offset = aml_name_buffer8(offset)
312	elif (directive == "ACPI_EXTRACT_NAME_DWORD_CONST"):
313	offset = aml_name_dword_const(offset)
314	elif (directive == "ACPI_EXTRACT_NAME_WORD_CONST"):
315	offset = aml_name_word_const(offset)
316	elif (directive == "ACPI_EXTRACT_NAME_BYTE_CONST"):
317	offset = aml_name_byte_const(offset)
318	elif (directive == "ACPI_EXTRACT_NAME_STRING"):
319	offset = aml_name_string(offset)
320	elif (directive == "ACPI_EXTRACT_METHOD_STRING"):
321	offset = aml_method_string(offset)
322	elif (directive == "ACPI_EXTRACT_DEVICE_START"):
323	offset = aml_device_start(offset)
324	elif (directive == "ACPI_EXTRACT_DEVICE_STRING"):
325	offset = aml_device_string(offset)
326	elif (directive == "ACPI_EXTRACT_DEVICE_END"):
327	offset = aml_device_end(offset)
328	elif (directive == "ACPI_EXTRACT_PROCESSOR_START"):
329	offset = aml_processor_start(offset)
330	elif (directive == "ACPI_EXTRACT_PROCESSOR_STRING"):
331	offset = aml_processor_string(offset)
332	elif (directive == "ACPI_EXTRACT_PROCESSOR_END"):
333	offset = aml_processor_end(offset)
334	elif (directive == "ACPI_EXTRACT_PKG_START"):
335	offset = aml_package_start(offset)
336	else:
337	die("Unsupported directive %s" % directive)
338
339	if array not in output:
340	output[array] = []
341	output[array].append(offset)
342
343	debug = "at end of file"
344
345	def get_value_type(maxvalue):
346	#Use type large enough to fit the table
347	if (maxvalue >= 0x10000):
348	return "int"
349	elif (maxvalue >= 0x100):
350	return "short"
351	else:
352	return "char"
353
354	# Pretty print output
355	for array in output.keys():
356	otype = get_value_type(max(output[array]))
357	odata = []
358	for value in output[array]:
359	odata.append("0x%x" % value)
360	sys.stdout.write("static unsigned %s %s[] = {\n" % (otype, array))
361	sys.stdout.write(",\n".join(odata))
362	sys.stdout.write('\n};\n');