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#!/usr/bin/env python3
##
## Copyright(c) 2019-2024 Qualcomm Innovation Center, Inc. All Rights Reserved.
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; if not, see <http://www.gnu.org/licenses/>.
##
import sys
import re
import string
import hex_common
##
## Generate the DEF_HELPER prototype for an instruction
## For A2_add: Rd32=add(Rs32,Rt32)
## We produce:
## DEF_HELPER_3(A2_add, s32, env, s32, s32)
##
def gen_helper_prototype(f, tag, tagregs, tagimms):
regs = tagregs[tag]
imms = tagimms[tag]
declared = []
ret_type = hex_common.helper_ret_type(tag, regs).proto_arg
declared.append(ret_type)
for arg in hex_common.helper_args(tag, regs, imms):
declared.append(arg.proto_arg)
arguments = ", ".join(declared)
## Add the TCG_CALL_NO_RWG_SE flag to helpers that don't take the env
## argument and aren't HVX instructions. Since HVX instructions take
## pointers to their arguments, they will have side effects.
if hex_common.need_env(tag) or hex_common.is_hvx_insn(tag):
f.write(f"DEF_HELPER_{len(declared) - 1}({tag}, {arguments})\n")
else:
f.write(f"DEF_HELPER_FLAGS_{len(declared) - 1}({tag}, "
f"TCG_CALL_NO_RWG_SE, {arguments})\n")
def main():
hex_common.read_common_files()
tagregs = hex_common.get_tagregs()
tagimms = hex_common.get_tagimms()
output_file = sys.argv[-1]
with open(output_file, "w") as f:
for tag in hex_common.tags:
## Skip the priv instructions
if "A_PRIV" in hex_common.attribdict[tag]:
continue
## Skip the guest instructions
if "A_GUEST" in hex_common.attribdict[tag]:
continue
## Skip the diag instructions
if tag == "Y6_diag":
continue
if tag == "Y6_diag0":
continue
if tag == "Y6_diag1":
continue
if hex_common.skip_qemu_helper(tag):
continue
if hex_common.is_idef_parser_enabled(tag):
continue
gen_helper_prototype(f, tag, tagregs, tagimms)
if __name__ == "__main__":
main()
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