Albert S
db17e58deb
Classify syscalls into groups, for x86_64 only for now. Up to date for 5.15, generate some #ifndef for syscalls introduced since 5.10. Only support x86_64 therefore at this point. Switch from blacklisting to a default whitelist.
56 lines
1.2 KiB
Python
Executable File
56 lines
1.2 KiB
Python
Executable File
#!/usr/bin/python
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import sys
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import re
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if len(sys.argv) < 2:
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print("Usage: gengroup groupfile")
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sys.exit(1)
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fd = open(sys.argv[1], "r")
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lines = fd.read().splitlines()
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groupnames = set()
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ifndef = dict()
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def print_ifndefs():
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for name in ifndef:
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print("#ifndef __NR_%s" % name)
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print("#define __NR_%s %s" % (name, ifndef[name]))
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print("#endif")
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def print_defines(names):
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names = sorted(names)
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i = 0
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for name in names:
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define = "#define %s ((uint64_t)1<<%s)" % (name, i)
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print(define)
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i = i + 1
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for line in lines:
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if line[0] == '#':
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continue
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splitted = line.split(' ')
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if len(splitted) < 2:
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print("Misformated line:", line)
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sys.exit(1)
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currentsyscall = splitted[0]
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currentgroups = splitted[1].split(',')
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flags = splitted[2] if len(splitted) > 2 else ""
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if any( not s or s.isspace() for s in currentgroups ):
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print("Misformated line (empty values):", line)
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sys.exit(1)
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groupnames.update(currentgroups)
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genifndef = re.match(r"genifndef\((\d+)*\)", flags)
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if genifndef:
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ifndef[currentsyscall] = genifndef.groups(1)[0]
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array_line = "{QSSB_SYS(%s), %s}," % (currentsyscall, '|'.join(currentgroups))
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print(array_line)
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print_ifndefs()
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print_defines(groupnames)
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