143 lines
3.1 KiB
Python
Executable File
143 lines
3.1 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright (c) 2017 Intel Corporation
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#
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# SPDX-License-Identifier: Apache-2.0
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import sys
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import re
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import argparse
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import os
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import json
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table_template = """/* auto-generated by gen_syscalls.py, don't edit */
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/* Weak handler functions that get replaced by the real ones unless a system
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* call is not implemented due to kernel configuration.
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*/
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%s
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const _k_syscall_handler_t _k_syscall_table[K_SYSCALL_LIMIT] = {
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\t%s
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};
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"""
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list_template = """
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/* auto-generated by gen_syscalls.py, don't edit */
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#ifndef _ZEPHYR_SYSCALL_LIST_H_
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#define _ZEPHYR_SYSCALL_LIST_H_
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#ifndef _ASMLANGUAGE
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum {
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\t%s
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};
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%s
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ASMLANGUAGE */
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#endif /* _ZEPHYR_SYSCALL_LIST_H_ */
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"""
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syscall_template = """
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/* auto-generated by gen_syscalls.py, don't edit */
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#ifndef _ASMLANGUAGE
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#include <syscall_list.h>
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#include <syscall_macros.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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%s
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#ifdef __cplusplus
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}
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#endif
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#endif
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"""
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handler_template = """
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extern u32_t %s(u32_t arg1, u32_t arg2, u32_t arg3,
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u32_t arg4, u32_t arg5, u32_t arg6, void *ssf);
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"""
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weak_template = """
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__weak ALIAS_OF(_handler_no_syscall)
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u32_t %s(u32_t arg1, u32_t arg2, u32_t arg3,
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u32_t arg4, u32_t arg5, u32_t arg6, void *ssf);
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"""
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def parse_args():
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global args
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parser = argparse.ArgumentParser(description = __doc__,
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formatter_class = argparse.RawDescriptionHelpFormatter)
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parser.add_argument("-i", "--json-file", required=True,
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help="Read syscall information from json file")
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parser.add_argument("-d", "--syscall-dispatch", required=True,
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help="output C system call dispatch table file")
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parser.add_argument("-o", "--base-output", required=True,
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help="Base output directory for syscall macro headers")
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args = parser.parse_args()
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def main():
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parse_args()
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with open(args.json_file, 'r') as fd:
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syscalls = json.load(fd)
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invocations = {}
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ids = []
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table_entries = []
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handlers = []
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for fn, handler, inv, sys_id, entry in syscalls:
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if fn not in invocations:
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invocations[fn] = []
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invocations[fn].append(inv)
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ids.append(sys_id)
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table_entries.append(entry)
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handlers.append(handler)
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with open(args.syscall_dispatch, "w") as fp:
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table_entries.append("[K_SYSCALL_BAD] = _handler_bad_syscall")
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weak_defines = "".join([weak_template % name for name in handlers])
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fp.write(table_template % (weak_defines, ",\n\t".join(table_entries)))
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# Listing header emitted to stdout
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ids.sort()
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ids.extend(["K_SYSCALL_BAD", "K_SYSCALL_LIMIT"])
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handler_defines = "".join([handler_template % name for name in handlers])
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sys.stdout.write(list_template % (",\n\t".join(ids), handler_defines))
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os.makedirs(args.base_output, exist_ok=True)
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for fn, invo_list in invocations.items():
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out_fn = os.path.join(args.base_output, fn)
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header = syscall_template % "\n\n".join(invo_list)
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with open(out_fn, "w") as fp:
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fp.write(header)
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if __name__ == "__main__":
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main()
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