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#!/usr/bin/env python3
import re
import sys
from urllib.request import urlopen
syscalls = {}
def print_table(name):
tab = syscalls[name]
print('\n\n----------------- BEGIN OF %s -----------------' % name)
for i in range(max(tab.keys()) + 1):
print('"%s", // %d' % (tab.get(i, ''), i))
print('----------------- END OF %s -----------------' % name)
# Parses a .tbl file (new format).
def parse_tlb(data):
table = {}
for line in data.splitlines():
line = line.strip()
if line.startswith('#') or not (line):
continue
parts = line.split()
table[int(parts[0])] = 'sys_' + parts[2]
return table
# Parses a #define __NR_xx 1234 old-style unistd.h header.
def parse_def(data):
table = {}
for line in data.splitlines():
m = re.match(r'^#define\s+__NR\d*?_(\w+)\s+(\d+)\s*$', line.strip())
if not m or m.group(1) == 'syscalls': # __NR_syscalls is just a sentinel.
continue
table[int(m.group(2))] = 'sys_' + m.group(1)
return table
def Main():
KSRC = 'https://raw.githubusercontent.com/torvalds/linux/v4.20/'
response = urlopen(KSRC + 'arch/x86/entry/syscalls/syscall_64.tbl')
syscalls['x86_64'] = parse_tlb(response.read().decode())
response = urlopen(KSRC + 'arch/x86/entry/syscalls/syscall_32.tbl')
syscalls['x86'] = parse_tlb(response.read().decode())
response = urlopen(KSRC + 'arch/arm/tools/syscall.tbl')
syscalls['armeabi'] = parse_tlb(response.read().decode())
response = urlopen(KSRC + 'arch/arm64/include/asm/unistd32.h')
syscalls['aarch32'] = parse_def(response.read().decode())
# From:
# arch/arm64/include/asm/unistd.h
# -> arch/arm64/include/uapi/asm/unistd.h
# -> include/uapi/asm-generic/unistd.h
response = urlopen(KSRC + 'include/uapi/asm-generic/unistd.h')
syscalls['aarch64'] = parse_def(response.read().decode())
print_table('x86_64')
print_table('x86')
print_table('aarch64')
print_table('armeabi')
print_table('aarch32')
if __name__ == '__main__':
sys.exit(Main())