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#!/usr/bin/env python3
import sys
import os.path
if len(sys.argv) < 2 or not os.path.isfile(sys.argv[1]):
print(f"{sys.argv[0]}: the input should be 'vu_syscalls.conf'")
sys.exit(1)
# Parse and output
code = '''#ifndef __VU_SYSCALL_DEFS__
#define __VU_SYSCALL_DEFS__
/* Arch independent definitions */
'''
vu_syscall_max_namelen = 0
vvu_syscall_max_namelen = 0
with open(sys.argv[1]) as f:
counter = 0
vcounter = 1
mcounter = 0
for line in f:
line = line.strip()
if line == "BUILTIN":
mcounter = counter
elif not line.startswith('#'):
syscall_line = line.split(':')
if len(syscall_line) > 1:
syscall = syscall_line[0].strip()
if len(syscall) > 1:
syscall = syscall.split(',')[0].strip()
syscall = syscall.split('/')[0]
if syscall.startswith('-'):
syscall = syscall[1:].strip()
syscall_len = len(syscall)
if syscall_len > vvu_syscall_max_namelen:
vvu_syscall_max_namelen = syscall_len
code += f"#define __VVU_{syscall} {-vcounter}\n"
vcounter += 1
else:
syscall_len = len(syscall)
if syscall_len > vu_syscall_max_namelen:
vu_syscall_max_namelen = syscall_len
code += f"#define __VU_{syscall} {counter}\n"
counter += 1
if mcounter == 0:
mcounter = counter
code += f"\n#define VU_NR_SYSCALLS {counter}"
code += f"\n#define VU_NR_MODULE_SYSCALLS {mcounter}"
code += f"\n#define VVU_NR_SYSCALLS {vcounter}"
code += f"\n#define VU_SYSCALL_MAX_NAMELEN {vu_syscall_max_namelen}"
code += f"\n#define VVU_SYSCALL_MAX_NAMELEN {vvu_syscall_max_namelen}"
code += "\n\n#endif"
print(code)
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