313 lines
10 KiB
Python
Executable File
313 lines
10 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright © 2020 Google, Inc.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# the rights to use, copy, modify, merge, publish, distribute, sublicense,
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# and/or sell copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice (including the next
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# paragraph) shall be included in all copies or substantial portions of the
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# Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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from mako.template import Template
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from isa import ISA
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import os
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import sys
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template = """\
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/* Copyright (C) 2020 Google, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "decode.h"
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/*
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* enum tables, these don't have any link back to other tables so just
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* dump them up front before the bitset tables
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*/
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%for name, enum in isa.enums.items():
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static const struct isa_enum ${enum.get_c_name()} = {
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.num_values = ${len(enum.values)},
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.values = {
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% for val, display in enum.values.items():
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{ .val = ${val}, .display = "${display}" },
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% endfor
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},
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};
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%endfor
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/*
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* generated expression functions, can be linked from bitset tables, so
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* also dump them up front
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*/
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%for name, expr in isa.expressions.items():
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static uint64_t
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${expr.get_c_name()}(struct decode_scope *scope)
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{
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% for fieldname in sorted(expr.fieldnames):
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int64_t ${fieldname} = isa_decode_field(scope, "${fieldname}");
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% endfor
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return ${expr.expr};
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}
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%endfor
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/*
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* Forward-declarations (so we don't have to figure out which order to
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* emit various tables when they have pointers to each other)
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*/
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%for name, bitset in isa.all_bitsets():
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static const struct isa_bitset bitset_${bitset.get_c_name()}_gen_${bitset.gen_min};
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%endfor
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%for root_name, root in isa.roots.items():
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const struct isa_bitset *${root.get_c_name()}[];
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%endfor
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/*
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* bitset tables:
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*/
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%for name, bitset in isa.all_bitsets():
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% for case in bitset.cases:
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% for field_name, field in case.fields.items():
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% if field.get_c_typename() == 'TYPE_BITSET':
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% if len(field.params) > 0:
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static const struct isa_field_params ${case.get_c_name()}_gen_${bitset.gen_min}_${field.get_c_name()} = {
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.num_params = ${len(field.params)},
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.params = {
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% for param in field.params:
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{ .name= "${param[0]}", .as = "${param[1]}" },
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% endfor
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},
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};
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% endif
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% endif
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% endfor
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static const struct isa_case ${case.get_c_name()}_gen_${bitset.gen_min} = {
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% if case.expr is not None:
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.expr = &${isa.expressions[case.expr].get_c_name()},
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% endif
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% if case.display is not None:
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.display = "${case.display}",
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% endif
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.num_fields = ${len(case.fields)},
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.fields = {
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% for field_name, field in case.fields.items():
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{ .name = "${field_name}", .low = ${field.low}, .high = ${field.high},
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% if field.expr is not None:
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.expr = &${isa.expressions[field.expr].get_c_name()},
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% endif
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% if field.display is not None:
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.display = "${field.display}",
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% endif
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.type = ${field.get_c_typename()},
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% if field.get_c_typename() == 'TYPE_BITSET':
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.bitsets = ${isa.roots[field.type].get_c_name()},
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% if len(field.params) > 0:
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.params = &${case.get_c_name()}_gen_${bitset.gen_min}_${field.get_c_name()},
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% endif
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% endif
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% if field.get_c_typename() == 'TYPE_ENUM':
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.enums = &${isa.enums[field.type].get_c_name()},
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% endif
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% if field.get_c_typename() == 'TYPE_ASSERT':
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.val.bitset = { ${', '.join(isa.split_bits(field.val, 32))} },
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% endif
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},
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% endfor
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},
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};
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% endfor
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static const struct isa_bitset bitset_${bitset.get_c_name()}_gen_${bitset.gen_min} = {
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<% pattern = bitset.get_pattern() %>
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% if bitset.extends is not None:
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.parent = &bitset_${isa.bitsets[bitset.extends].get_c_name()}_gen_${isa.bitsets[bitset.extends].gen_min},
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% endif
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.name = "${name}",
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.gen = {
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.min = ${bitset.get_gen_min()},
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.max = ${bitset.get_gen_max()},
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},
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.match.bitset = { ${', '.join(isa.split_bits(pattern.match, 32))} },
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.dontcare.bitset = { ${', '.join(isa.split_bits(pattern.dontcare, 32))} },
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.mask.bitset = { ${', '.join(isa.split_bits(pattern.mask, 32))} },
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.num_cases = ${len(bitset.cases)},
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.cases = {
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% for case in bitset.cases:
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&${case.get_c_name()}_gen_${bitset.gen_min},
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% endfor
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},
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};
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%endfor
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/*
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* bitset hierarchy root tables (where decoding starts from):
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*/
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%for root_name, root in isa.roots.items():
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const struct isa_bitset *${root.get_c_name()}[] = {
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% for leaf_name, leafs in isa.leafs.items():
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% for leaf in leafs:
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% if leaf.get_root() == root:
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&bitset_${leaf.get_c_name()}_gen_${leaf.gen_min},
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% endif
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% endfor
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% endfor
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(void *)0
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};
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%endfor
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"""
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header = """\
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/* Copyright (C) 2020 Google, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef _${guard}_
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#define _${guard}_
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#include <stdint.h>
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#include <util/bitset.h>
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#define BITMASK_WORDS BITSET_WORDS(${isa.bitsize})
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typedef struct {
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BITSET_WORD bitset[BITMASK_WORDS];
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} bitmask_t;
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#define BITSET_FORMAT ${isa.format()}
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#define BITSET_VALUE(v) ${isa.value()}
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static inline void
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next_instruction(bitmask_t *instr, BITSET_WORD *start)
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{
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%for i in range(0, int(isa.bitsize / 32)):
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instr->bitset[${i}] = *(start + ${i});
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%endfor
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}
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static inline uint64_t
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bitmask_to_uint64_t(bitmask_t mask)
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{
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return ((uint64_t)mask.bitset[1] << 32) | mask.bitset[0];
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}
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static inline bitmask_t
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uint64_t_to_bitmask(uint64_t val)
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{
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bitmask_t mask = {
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.bitset[0] = val & 0xffffffff,
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.bitset[1] = (val >> 32) & 0xffffffff,
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};
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return mask;
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}
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#endif /* _${guard}_ */
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"""
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glue = """\
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/* Copyright (C) 2020 Google, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef _${guard}_
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#define _${guard}_
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#include "${isa}"
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#endif /* _${guard}_ */
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"""
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xml = sys.argv[1]
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glue_h = sys.argv[2]
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dst_c = sys.argv[3]
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dst_h = sys.argv[4]
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isa = ISA(xml)
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with open(glue_h, 'w') as f:
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guard = os.path.basename(glue_h).upper().replace("-", "_").replace(".", "_")
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f.write(Template(glue).render(guard=guard, isa=os.path.basename(dst_h)))
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with open(dst_c, 'w') as f:
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f.write(Template(template).render(isa=isa))
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with open(dst_h, 'w') as f:
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guard = os.path.basename(dst_h).upper().replace("-", "_").replace(".", "_")
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f.write(Template(header).render(isa=isa, guard=guard))
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