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# Copyright (c) 2021, 2025, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# The Universal Permissive License (UPL), Version 1.0
#
# Subject to the condition set forth below, permission is hereby granted to any
# person obtaining a copy of this software, associated documentation and/or
# data (collectively the "Software"), free of charge and under any and all
# copyright rights in the Software, and any and all patent rights owned or
# freely licensable by each licensor hereunder covering either (i) the
# unmodified Software as contributed to or provided by such licensor, or (ii)
# the Larger Works (as defined below), to deal in both
#
# (a) the Software, and
#
# (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
# one is included with the Software each a "Larger Work" to which the Software
# is contributed by such licensors),
#
# without restriction, including without limitation the rights to copy, create
# derivative works of, display, perform, and distribute the Software and make,
# use, sell, offer for sale, import, export, have made, and have sold the
# Software and the Larger Work(s), and to sublicense the foregoing rights on
# either these or other terms.
#
# This license is subject to the following condition:
#
# The above copyright notice and either this complete permission notice or at a
# minimum a reference to the UPL must be included in all copies or substantial
# portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
"""
Generates Java source files with the values of native (mainly posix) constants.
To update the platform independent source files, execute:
python3 gen_native_cfg.py --common
This will modify the files in-place, replacing anything between '// start generated' and '//end generated'.
To generate platform-specific file, execute the script without arguments. This will generate a C source file, compile
it, execute and write the generated Java file to stdout.
In-place modification is not supported as this is meant to be executed remotely, for example:
docker run -i ol6_python3 python3 -u - <gen_native_cfg.py >../graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/PosixConstantsLinux.java
ssh darwin 'cd /tmp && /usr/local/bin/python3 -u -' <gen_native_cfg.py >../graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/PosixConstantsDarwin.java
"""
import datetime
import os
import subprocess
import sys
import platform as plat
import re
import textwrap
import contextlib
from collections import namedtuple
from pathlib import Path
DIR = Path(__file__).parent.parent
includes = '''
#ifndef _MSC_VER
# include <dirent.h>
# include <dlfcn.h>
# include <netdb.h>
# include <netinet/in.h>
# include <netinet/tcp.h>
# include <sys/mman.h>
# include <sys/resource.h>
# include <sys/select.h>
# include <sys/socket.h>
# include <sys/un.h>
# include <sys/unistd.h>
# include <sys/utsname.h>
# include <sys/wait.h>
# include <sysexits.h>
# include <semaphore.h>
#else
# include <winsock2.h>
# include <ws2tcpip.h>
# include <windows.h>
# include <sys/stat.h>
# ifndef PATH_MAX
# define PATH_MAX MAX_PATH
# endif
#endif
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stddef.h>
#include <stdio.h>
#include <sys/types.h>
'''
type_defs = {
'i': ('Int', '%d'),
'x': ('Int', '0x%08lX'),
'b': ('Boolean', None)
}
# Explanation of the format:
# Names in square brackets specify an option group name for all following entries.
# Normal entries:
# Column #1 - fallback specifier:
# empty - mandatory constant
# `*` - optional constant
# `0`...`9` - if not defined, it will default to the number given (0 to 9)
# `u` - if not defined, it will use the constant prefixed with an underscore
# Column #2 - type specifier:
# `i` - int
# `x` - int, appearing in hexadecimal in the generated source
# `b` - boolean, will be true if the plaform is Linux (WTF?)
# Column #3 - the name of the constant
# Comments can come after that starting with "//"
constant_defs = '''
b HAVE_FUTIMENS
b HAVE_UTIMENSAT
i FD_SETSIZE
i PATH_MAX
0 i L_ctermid
i INET_ADDRSTRLEN
i INET6_ADDRSTRLEN
* i HOST_NAME_MAX
0 i _POSIX_HOST_NAME_MAX
i SOL_SOCKET
i NI_MAXHOST
i NI_MAXSERV
0 i AT_FDCWD
0 i AT_SYMLINK_FOLLOW
i SEEK_SET
i SEEK_CUR
i SEEK_END
* i SEEK_DATA
* i SEEK_HOLE
i SOMAXCONN
* i PIPE_BUF
* i SEM_VALUE_MAX
* i RUSAGE_CHILDREN
0 i RUSAGE_SELF
* i RUSAGE_THREAD
[openFlags]
* x O_ACCMODE
x O_RDONLY
x O_WRONLY
x O_RDWR
x O_CREAT
x O_EXCL
x O_TRUNC
x O_APPEND
* x O_NONBLOCK
* x O_NOCTTY
* x O_NDELAY
* x O_DSYNC
* x O_CLOEXEC
* x O_SYNC
* x O_DIRECT
* x O_RSYNC
* x O_TMPFILE
* x O_TEMPORARY
* x O_DIRECTORY
* x O_BINARY
* x O_TEXT
* x O_XATTR
* x O_LARGEFILE
* x O_SHLOCK
* x O_EXLOCK
* x O_EXEC
* x O_SEARCH
* x O_PATH
* x O_TTY_INIT
* x O_EVTONLY
* x O_FSYNC
* x O_SYMLINK
* x O_NOINHERIT
* x O_NOFOLLOW
* x O_NOFOLLOW_ANY
* x O_NOLINKS
* x O_NOATIME
* x O_RANDOM
* x O_SEQUENTIAL
* x O_ASYNC
[fileType]
u x S_IFMT
0 x S_IFSOCK
0 x S_IFLNK
u x S_IFREG
0 x S_IFBLK
u x S_IFDIR
u x S_IFCHR
0 x S_IFIFO
[mmapFlags]
1 x MAP_SHARED
2 x MAP_PRIVATE
4 x MAP_ANONYMOUS
* x MAP_DENYWRITE
* x MAP_EXECUTABLE
[mmapProtection]
0 x PROT_NONE
1 x PROT_READ
2 x PROT_WRITE
4 x PROT_EXEC
[flockOperation]
0 x LOCK_SH
0 x LOCK_EX
0 x LOCK_NB
0 x LOCK_UN
[flockType]
* i F_RDLCK
* i F_WRLCK
* i F_UNLCK
[direntType]
0 i DT_UNKNOWN
0 i DT_FIFO
0 i DT_CHR
0 i DT_DIR
0 i DT_BLK
0 i DT_REG
0 i DT_LNK
0 i DT_SOCK
0 i DT_WHT
[waitOptions]
0 i WNOHANG
0 i WUNTRACED
[accessMode]
0 x R_OK
0 x W_OK
0 x X_OK
0 x F_OK
[exitStatus]
* i EX_OK
* i EX_USAGE
* i EX_DATAERR
* i EX_NOINPUT
* i EX_NOUSER
* i EX_NOHOST
* i EX_UNAVAILABLE
* i EX_SOFTWARE
* i EX_OSERR
* i EX_OSFILE
* i EX_CANTCREAT
* i EX_IOERR
* i EX_TEMPFAIL
* i EX_PROTOCOL
* i EX_NOPERM
* i EX_CONFIG
* i EX_NOTFOUND
[rtld]
0 x RTLD_LAZY
0 x RTLD_NOW
0 x RTLD_GLOBAL
0 x RTLD_LOCAL
[winapiLoadLibraryFlags]
* i LOAD_LIBRARY_SEARCH_DEFAULT_DIRS
* i LOAD_LIBRARY_SEARCH_APPLICATION_DIR
* i LOAD_LIBRARY_SEARCH_SYSTEM32
* i LOAD_LIBRARY_SEARCH_USER_DIRS
* i LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR
[socketFamily]
i AF_UNSPEC
i AF_INET
i AF_INET6
* i AF_PACKET
i AF_UNIX
[socketType]
i SOCK_DGRAM
i SOCK_STREAM
[ip4Address]
x INADDR_ANY
x INADDR_BROADCAST
x INADDR_NONE
x INADDR_LOOPBACK
0 x INADDR_ALLHOSTS_GROUP
0 x INADDR_MAX_LOCAL_GROUP
0 x INADDR_UNSPEC_GROUP
[gaiFlags]
x AI_PASSIVE
x AI_CANONNAME
x AI_NUMERICHOST
x AI_V4MAPPED
x AI_ALL
x AI_ADDRCONFIG
* x AI_IDN
* x AI_CANONIDN
x AI_NUMERICSERV
[gaiErrors]
i EAI_BADFLAGS
i EAI_NONAME
i EAI_AGAIN
i EAI_FAIL
i EAI_FAMILY
i EAI_SOCKTYPE
i EAI_SERVICE
i EAI_MEMORY
0 i EAI_SYSTEM
0 i EAI_OVERFLOW
i EAI_NODATA
0 i EAI_ADDRFAMILY
* i EAI_INPROGRESS
* i EAI_CANCELED
* i EAI_NOTCANCELED
* i EAI_ALLDONE
* i EAI_INTR
* i EAI_IDN_ENCODE
[niFlags]
i NI_NUMERICHOST
i NI_NUMERICSERV
i NI_NOFQDN
i NI_NAMEREQD
i NI_DGRAM
* i NI_IDN
[ipProto]
i IPPROTO_IP
i IPPROTO_ICMP
i IPPROTO_IGMP
0 i IPPROTO_IPIP
i IPPROTO_TCP
i IPPROTO_EGP
i IPPROTO_PUP
i IPPROTO_UDP
i IPPROTO_IDP
0 i IPPROTO_TP
i IPPROTO_IPV6
0 i IPPROTO_RSVP
0 i IPPROTO_GRE
i IPPROTO_ESP
i IPPROTO_AH
0 i IPPROTO_MTP
0 i IPPROTO_ENCAP
i IPPROTO_PIM
i IPPROTO_SCTP
i IPPROTO_RAW
[shutdownHow]
0 i SHUT_RD
0 i SHUT_WR
0 i SHUT_RDWR
[socketOptions]
i SO_DEBUG
i SO_ACCEPTCONN
i SO_REUSEADDR
* i SO_EXCLUSIVEADDRUSE
i SO_KEEPALIVE
i SO_DONTROUTE
i SO_BROADCAST
* i SO_USELOOPBACK
i SO_LINGER
i SO_OOBINLINE
0 i SO_REUSEPORT
i SO_SNDBUF
i SO_RCVBUF
i SO_SNDLOWAT
i SO_RCVLOWAT
i SO_SNDTIMEO
i SO_RCVTIMEO
i SO_ERROR
i SO_TYPE
* i SO_SETFIB
* i SO_PASSCRED
* i SO_PEERCRED
* i SO_PASSSEC
* i SO_PEERSEC
* i SO_BINDTODEVICE
* i SO_PRIORITY
* i SO_MARK
* i SO_DOMAIN
* i SO_PROTOCOL
[tcpOptions]
* i TCP_NODELAY
* i TCP_MAXSEG
* i TCP_CORK
* i TCP_KEEPIDLE
* i TCP_KEEPINTVL
* i TCP_KEEPCNT
* i TCP_SYNCNT
* i TCP_LINGER2
* i TCP_DEFER_ACCEPT
* i TCP_WINDOW_CLAMP
* i TCP_INFO
* i TCP_QUICKACK
* i TCP_FASTOPEN
* i TCP_CONGESTION
* i TCP_USER_TIMEOUT
* i TCP_NOTSENT_LOWAT
[ipv6Options]
* i IPV6_JOIN_GROUP
* i IPV6_LEAVE_GROUP
* i IPV6_MULTICAST_HOPS
* i IPV6_MULTICAST_IF
* i IPV6_MULTICAST_LOOP
* i IPV6_UNICAST_HOPS
* i IPV6_V6ONLY
* i IPV6_CHECKSUM
* i IPV6_DONTFRAG
* i IPV6_DSTOPTS
* i IPV6_HOPLIMIT
* i IPV6_HOPOPTS
* i IPV6_NEXTHOP
* i IPV6_PATHMTU
* i IPV6_PKTINFO
* i IPV6_RECVDSTOPTS
* i IPV6_RECVHOPLIMIT
* i IPV6_RECVHOPOPTS
* i IPV6_RECVPKTINFO
* i IPV6_RECVRTHDR
* i IPV6_RECVTCLASS
* i IPV6_RTHDR
* i IPV6_RTHDRDSTOPTS
* i IPV6_RTHDR_TYPE_0
* i IPV6_RECVPATHMTU
* i IPV6_TCLASS
* i IPV6_USE_MIN_MTU
[sysconfigNames] // These names use some sensible overlapping default values for windows
0 i _SC_ARG_MAX // I made those required which are on both Mac and Linux
1 i _SC_CHILD_MAX
* i _SC_HOST_NAME_MAX
2 i _SC_LOGIN_NAME_MAX
* i _SC_NGROUPS_MAX
3 i _SC_CLK_TCK
4 i _SC_OPEN_MAX
5 i _SC_PAGESIZE
5 i _SC_PAGE_SIZE
* i _SC_RE_DUP_MAX
* i _SC_STREAM_MAX
* i _SC_SYMLOOP_MAX
* i _SC_TTY_NAME_MAX
* i _SC_TZNAME_MAX
* i _SC_VERSION
* i _SC_BC_BASE_MAX
* i _SC_BC_DIM_MAX
* i _SC_BC_SCALE_MAX
* i _SC_BC_STRING_MAX
* i _SC_COLL_WEIGHTS_MAX
* i _SC_EXPR_NEST_MAX
* i _SC_LINE_MAX
* i _SC_2_VERSION
* i _SC_2_C_DEV
* i _SC_2_FORT_DEV
* i _SC_2_FORT_RUN
* i _SC_2_LOCALEDEF
* i _SC_2_SW_DEV
7 i _SC_SEM_NSEMS_MAX
8 i _SC_PHYS_PAGES
* i _SC_AVPHYS_PAGES
9 i _SC_NPROCESSORS_CONF
9 i _SC_NPROCESSORS_ONLN
'''
layout_defs = '''
[struct sockaddr]
sa_family
[struct sockaddr_storage]
[struct sockaddr_in]
sin_family
sin_port
sin_addr
[struct sockaddr_in6]
sin6_family
sin6_port
sin6_flowinfo
sin6_addr
sin6_scope_id
[struct in_addr]
s_addr
[struct in6_addr]
s6_addr
[struct sockaddr_un] u
sun_family
sun_path
'''
java_copyright = '''/*
* Copyright (c) 2021, 2025, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* The Universal Permissive License (UPL), Version 1.0
*
* Subject to the condition set forth below, permission is hereby granted to any
* person obtaining a copy of this software, associated documentation and/or
* data (collectively the "Software"), free of charge and under any and all
* copyright rights in the Software, and any and all patent rights owned or
* freely licensable by each licensor hereunder covering either (i) the
* unmodified Software as contributed to or provided by such licensor, or (ii)
* the Larger Works (as defined below), to deal in both
*
* (a) the Software, and
*
* (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
* one is included with the Software each a "Larger Work" to which the Software
* is contributed by such licensors),
*
* without restriction, including without limitation the rights to copy, create
* derivative works of, display, perform, and distribute the Software and make,
* use, sell, offer for sale, import, export, have made, and have sold the
* Software and the Larger Work(s), and to sublicense the foregoing rights on
* either these or other terms.
*
* This license is subject to the following condition:
*
* The above copyright notice and either this complete permission notice or at a
* minimum a reference to the UPL must be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/'''
platform_template = '''{java_copyright}
package com.oracle.graal.python.runtime;
// Auto generated by {script_name} at {timestamp}
// on {uname}
class PosixConstants{platform} {{
private PosixConstants{platform}() {{
}}
static void getConstants(PosixConstants.Registry constants) {{
{output}
}}
}}
'''
Constant = namedtuple('Constant', ['name', 'optional', 'type', 'format'])
Struct = namedtuple('Struct', ['name', 'members', 'unix_only'])
c_source_file = 'gen_native_cfg.c'
c_executable_file = 'gen_native_cfg'
def parse_defs():
regex = re.compile(r'(?:\[(\w+)\]|(\*|u|\d?)\s*(\w+)\s+(\w+))( *\/\/.*)?')
current_group = []
groups = {}
constants = []
for line in constant_defs.splitlines():
line = line.strip()
if not line:
current_group = []
continue
m = regex.fullmatch(line)
if not m:
raise ValueError(f'Invalid constant definition {line!r}')
if m.group(1):
current_group = []
groups[m.group(1)] = current_group
else:
c_type, c_format = type_defs[m.group(3)]
c = Constant(name=m.group(4), optional=m.group(2), type=c_type, format=c_format)
current_group.append(c)
constants.append(c)
regex = re.compile(r'(?:\[(.*?)\]\s*(u?))|(.*)')
layouts = []
current_struct = None
for line in layout_defs.splitlines():
line = line.strip()
if not line:
continue
m = regex.fullmatch(line)
if not m:
raise ValueError(f'Invalid layout definition {line!r}')
if m.group(1):
current_struct = []
layouts.append(Struct(m.group(1), current_struct, m.group(2)))
else:
current_struct.append(m.group(3))
return constants, groups, layouts
def delete_if_exists(filename):
try:
os.unlink(filename)
except FileNotFoundError:
pass
def to_id(name):
return name.upper().replace(' ', '_')
def sizeof_name(struct_name, member=None):
s = f'SIZEOF_{to_id(struct_name)}'
if member:
s += '_' + to_id(member)
return s
def offsetof_name(struct_name, member_name):
return f'OFFSETOF_{to_id(struct_name)}_{to_id(member_name)}'
def generate_platform():
constants = parse_defs()[0]
platform = sys.platform.capitalize()
if platform not in ('Linux', 'Darwin', 'Win32'):
raise ValueError(f'Unsupported platform: {platform}')
script_name = os.path.basename(__file__)
if script_name == '<stdin>':
script_name = 'gen_native_cfg.py'
with open(c_source_file, 'w') as f:
f.write(includes)
f.write('\nint main() {\n')
for c in constants:
if c.format is None:
val = 'true' if platform == 'Linux' else 'false'
f.write(f' printf(" constants.put(\\"{c.name}\\", {val});\\n");\n')
continue
if c.optional:
f.write(f'#ifdef {c.name}\n')
f.write(f' printf(" constants.put(\\"{c.name}\\", {c.format});\\n", {c.name});\n')
if c.optional:
if c.optional != '*':
f.write('#else\n')
if c.optional == "u":
f.write(f' printf(" constants.put(\\"{c.name}\\", {c.format});\\n", _{c.name});\n')
elif ord("0") <= ord(c.optional) <= ord("9"):
f.write(f' printf(" constants.put(\\"{c.name}\\", {c.optional});\\n");\n')
else:
raise ValueError(f"Unsupported fallback specifier for {c.name}: {c.optional}")
f.write(f'#endif\n')
f.write(' return 0;\n}\n')
flags = '-D_GNU_SOURCE' if platform == 'Linux' else ''
flags += '' if platform == 'Win32' else ' -Wall -Werror -Wno-format '
cc = os.environ.get('CC', 'cl' if platform == 'Win32' else 'cc')
subprocess.run(f'{cc} {flags} -o {c_executable_file} {c_source_file}', shell=True, check=True)
output = subprocess.run(f'./{c_executable_file}', shell=False, check=True, stdout=subprocess.PIPE, universal_newlines=True).stdout[:-1]
uname = " ".join(tuple(plat.uname()))
out_path = DIR / f'graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/PosixConstants{platform}.java'
with open(out_path, 'w') as f:
f.write(platform_template.format(java_copyright=java_copyright, script_name=script_name, timestamp=datetime.datetime.now(), uname=uname, platform=platform, output=output))
def load_existing_parts(path):
with open(path, 'r') as f:
header = []
footer = []
dst = header
for line in f.readlines():
if '// end generated' in line:
dst = footer
dst.append(line)
if '// start generated' in line:
dst = []
return header, footer
@contextlib.contextmanager
def open_generated_segment(path):
with open(path, 'r') as f:
header = []
footer = []
dst = header
for line in f.readlines():
if '// end generated' in line:
dst = footer
dst.append(line)
if '// start generated' in line:
dst = []
with open(path, 'w') as f:
f.writelines(header)
yield f
f.writelines(footer)
def generate_common():
constants, groups, layouts = parse_defs()
generate_posix_constants(constants, groups)
generate_native_constants(layouts)
def generate_posix_constants(constants, groups):
posix_constants = DIR / 'graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/PosixConstants.java'
decls = []
defs = []
def add_constant(opt, typ, name):
prefix = 'Optional' if opt == '*' else 'Mandatory'
decls.append(f' public static final {prefix}{typ}Constant {name};\n')
defs.append(f' {name} = reg.create{prefix}{typ}("{name}");\n')
for c in constants:
add_constant(c.optional, c.type, c.name)
decls.append('\n')
defs.append('\n')
for group_name, items in groups.items():
types = {i.type for i in items}
if len(types) != 1:
raise ValueError(f'Inconsistent constant types in group {group_name}')
t = types.pop()
decls.append(f' public static final {t}Constant[] {group_name};\n')
elements = ', '.join(i.name for i in items)
group_def = f'{group_name} = new {t}Constant[]{{{elements}}};\n'
defs.extend(s + '\n' for s in textwrap.wrap(group_def, 200, initial_indent=' ' * 8, subsequent_indent=' ' * 24))
with open_generated_segment(posix_constants) as f:
f.writelines(decls)
f.write('\n')
f.write(' static {\n')
f.write(' Registry reg = Registry.create();\n')
f.writelines(defs)
f.write(' }\n')
def generate_native_constants(layouts):
c_filename = DIR / 'graalpython/python-libposix/src/posix.c'
java_filename = DIR / 'graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/NFIPosixConstants.java'
constants = []
for struct in layouts:
if struct.unix_only:
wrap = lambda x: f'unix_or_0({x})'
else:
wrap = lambda x: x
constants.append((sizeof_name(struct.name), wrap(f'sizeof({struct.name})')))
for member in struct.members:
constants.append((sizeof_name(struct.name, member), wrap(f'sizeof((({struct.name}*)0)->{member})')))
constants.append((offsetof_name(struct.name, member), wrap(f'offsetof({struct.name}, {member})')))
with open_generated_segment(c_filename) as f:
f.write('int32_t init_constants(int64_t* out, int32_t len) {\n')
f.write(f' if (len != {len(constants)})\n')
f.write(' return -1;\n')
for i, (_, expr) in enumerate(constants):
f.write(f' out[{i}] = {expr};\n')
f.write(' return 0;\n')
f.write('}\n')
with open_generated_segment(java_filename) as f:
for i, (name, _) in enumerate(constants):
f.write(f' {name}{"," if i < len(constants) - 1 else ""}\n')
def main():
try:
generate_common()
generate_platform()
finally:
delete_if_exists(c_source_file)
delete_if_exists(c_executable_file)
if __name__ == '__main__':
main()
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