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qemu-e2k/target/hexagon/meson.build
Alessandro Di Federico 8a9ce0952b target/hexagon: suppress unused variable warning 
This patch manually suppresses a warning for an unused variable
(yynerrs) emitted by bison.

This warning has been triggered for the first time by clang 15.

This patch also disables `-Wextra`, which is not usually adopted in
QEMU. However, clang 15 triggers the warning fixed in this patch even in
absence of `-Wextra`.

Signed-off-by: Alessandro Di Federico <ale@rev.ng>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Tested-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20221221155327.1504117-1-ale@rev.ng>
2023-01-05 09:19:02 -08:00

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Meson
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##
## Copyright(c) 2020-2021 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/>.
##
hexagon_ss = ss.source_set()
hex_common_py = 'hex_common.py'
attribs_def = meson.current_source_dir() / 'attribs_def.h.inc'
gen_tcg_h = meson.current_source_dir() / 'gen_tcg.h'
gen_tcg_hvx_h = meson.current_source_dir() / 'gen_tcg_hvx.h'
idef_parser_dir = meson.current_source_dir() / 'idef-parser'
#
# Step 1
# We use a C program to create semantics_generated.pyinc
#
gen_semantics = executable(
'gen_semantics',
'gen_semantics.c',
native: true, build_by_default: false)
semantics_generated = custom_target(
'semantics_generated.pyinc',
output: 'semantics_generated.pyinc',
command: [gen_semantics, '@OUTPUT@'],
)
hexagon_ss.add(semantics_generated)
#
# Step 2
# We use Python scripts to generate the following files
# shortcode_generated.h.inc
# tcg_func_table_generated.c.inc
# printinsn_generated.h.inc
# op_regs_generated.h.inc
# op_attribs_generated.h.inc
# opcodes_def_generated.h.inc
#
shortcode_generated = custom_target(
'shortcode_generated.h.inc',
output: 'shortcode_generated.h.inc',
depends: [semantics_generated],
depend_files: [hex_common_py, attribs_def],
command: [python, files('gen_shortcode.py'), semantics_generated, attribs_def, '@OUTPUT@'],
)
hexagon_ss.add(shortcode_generated)
tcg_func_table_generated = custom_target(
'tcg_func_table_generated.c.inc',
output: 'tcg_func_table_generated.c.inc',
depends: [semantics_generated],
depend_files: [hex_common_py, attribs_def],
command: [python, files('gen_tcg_func_table.py'), semantics_generated, attribs_def, '@OUTPUT@'],
)
hexagon_ss.add(tcg_func_table_generated)
printinsn_generated = custom_target(
'printinsn_generated.h.inc',
output: 'printinsn_generated.h.inc',
depends: [semantics_generated],
depend_files: [hex_common_py, attribs_def],
command: [python, files('gen_printinsn.py'), semantics_generated, attribs_def, '@OUTPUT@'],
)
hexagon_ss.add(printinsn_generated)
op_regs_generated = custom_target(
'op_regs_generated.h.inc',
output: 'op_regs_generated.h.inc',
depends: [semantics_generated],
depend_files: [hex_common_py, attribs_def],
command: [python, files('gen_op_regs.py'), semantics_generated, attribs_def, '@OUTPUT@'],
)
hexagon_ss.add(op_regs_generated)
op_attribs_generated = custom_target(
'op_attribs_generated.h.inc',
output: 'op_attribs_generated.h.inc',
depends: [semantics_generated],
depend_files: [hex_common_py, attribs_def],
command: [python, files('gen_op_attribs.py'), semantics_generated, attribs_def, '@OUTPUT@'],
)
hexagon_ss.add(op_attribs_generated)
opcodes_def_generated = custom_target(
'opcodes_def_generated.h.inc',
output: 'opcodes_def_generated.h.inc',
depends: [semantics_generated],
depend_files: [hex_common_py, attribs_def],
command: [python, files('gen_opcodes_def.py'), semantics_generated, attribs_def, '@OUTPUT@'],
)
hexagon_ss.add(opcodes_def_generated)
#
# Step 3
# We use a C program to create iset.py which is imported into dectree.py
# to create the decode tree
#
gen_dectree_import = executable(
'gen_dectree_import',
'gen_dectree_import.c', opcodes_def_generated, op_regs_generated,
native: true, build_by_default: false)
iset_py = custom_target(
'iset.py',
output: 'iset.py',
command: [gen_dectree_import, '@OUTPUT@'],
)
hexagon_ss.add(iset_py)
#
# Step 4
# We use the dectree.py script to generate the decode tree header file
#
dectree_generated = custom_target(
'dectree_generated.h.inc',
output: 'dectree_generated.h.inc',
depends: [iset_py],
env: {'PYTHONPATH': meson.current_build_dir()},
command: [python, files('dectree.py'), '@OUTPUT@'],
)
hexagon_ss.add(dectree_generated)
hexagon_ss.add(files(
'cpu.c',
'translate.c',
'op_helper.c',
'gdbstub.c',
'genptr.c',
'reg_fields.c',
'decode.c',
'iclass.c',
'opcodes.c',
'printinsn.c',
'arch.c',
'fma_emu.c',
'mmvec/decode_ext_mmvec.c',
'mmvec/system_ext_mmvec.c',
))
#
# Step 4.5
# We use flex/bison based idef-parser to generate TCG code for a lot
# of instructions. idef-parser outputs
# idef-generated-emitter.c
# idef-generated-emitter.h.inc
# idef-generated-enabled-instructions
#
idef_parser_enabled = get_option('hexagon_idef_parser')
if idef_parser_enabled and 'hexagon-linux-user' in target_dirs
idef_parser_input_generated = custom_target(
'idef_parser_input.h.inc',
output: 'idef_parser_input.h.inc',
depends: [semantics_generated],
depend_files: [hex_common_py],
command: [python, files('gen_idef_parser_funcs.py'), semantics_generated, attribs_def, '@OUTPUT@'],
)
preprocessed_idef_parser_input_generated = custom_target(
'idef_parser_input.preprocessed.h.inc',
output: 'idef_parser_input.preprocessed.h.inc',
input: idef_parser_input_generated,
depend_files: [idef_parser_dir / 'macros.inc'],
command: [idef_parser_dir / 'prepare', '@INPUT@', '-I' + idef_parser_dir, '-o', '@OUTPUT@'],
)
flex = generator(
find_program('flex'),
output: ['@BASENAME@.yy.c', '@BASENAME@.yy.h'],
arguments: ['-o', '@OUTPUT0@', '--header-file=@OUTPUT1@', '@INPUT@']
)
bison = generator(
find_program('bison'),
output: ['@BASENAME@.tab.c', '@BASENAME@.tab.h'],
arguments: ['@INPUT@', '--defines=@OUTPUT1@', '--output=@OUTPUT0@']
)
glib_dep = dependency('glib-2.0', native: true)
idef_parser = executable(
'idef-parser',
[flex.process(idef_parser_dir / 'idef-parser.lex'),
bison.process(idef_parser_dir / 'idef-parser.y'),
idef_parser_dir / 'parser-helpers.c'],
include_directories: ['idef-parser', '../../include/'],
dependencies: [glib_dep],
native: true
)
idef_generated_tcg = custom_target(
'idef-generated-tcg',
output: ['idef-generated-emitter.c',
'idef-generated-emitter.h.inc',
'idef-generated-enabled-instructions'],
input: preprocessed_idef_parser_input_generated,
depend_files: [hex_common_py],
command: [idef_parser, '@INPUT@', '@OUTPUT0@', '@OUTPUT1@', '@OUTPUT2@']
)
indent = find_program('indent', required: false)
if indent.found()
idef_generated_tcg_c = custom_target(
'indent',
input: idef_generated_tcg[0],
output: 'idef-generated-emitter.indented.c',
command: [indent, '-linux', '@INPUT@', '-o', '@OUTPUT@']
)
else
idef_generated_tcg_c = custom_target(
'copy',
input: idef_generated_tcg[0],
output: 'idef-generated-emitter.indented.c',
command: ['cp', '@INPUT@', '@OUTPUT@']
)
endif
idef_generated_list = idef_generated_tcg[2].full_path()
hexagon_ss.add(idef_generated_tcg_c)
# Setup input and dependencies for the next step, this depends on whether or
# not idef-parser is enabled
helper_dep = [semantics_generated, idef_generated_tcg_c, idef_generated_tcg]
helper_in = [semantics_generated, attribs_def, gen_tcg_h, gen_tcg_hvx_h, idef_generated_list]
else
# Setup input and dependencies for the next step, this depends on whether or
# not idef-parser is enabled
helper_dep = [semantics_generated]
helper_in = [semantics_generated, attribs_def, gen_tcg_h, gen_tcg_hvx_h]
endif
#
# Step 5
# We use Python scripts to generate the following files
# helper_protos_generated.h.inc
# helper_funcs_generated.c.inc
# tcg_funcs_generated.c.inc
#
helper_protos_generated = custom_target(
'helper_protos_generated.h.inc',
output: 'helper_protos_generated.h.inc',
depends: helper_dep,
depend_files: [hex_common_py, attribs_def, gen_tcg_h, gen_tcg_hvx_h],
command: [python, files('gen_helper_protos.py'), helper_in, '@OUTPUT@'],
)
hexagon_ss.add(helper_protos_generated)
helper_funcs_generated = custom_target(
'helper_funcs_generated.c.inc',
output: 'helper_funcs_generated.c.inc',
depends: helper_dep,
depend_files: [hex_common_py, attribs_def, gen_tcg_h, gen_tcg_hvx_h],
command: [python, files('gen_helper_funcs.py'), helper_in, '@OUTPUT@'],
)
hexagon_ss.add(helper_funcs_generated)
tcg_funcs_generated = custom_target(
'tcg_funcs_generated.c.inc',
output: 'tcg_funcs_generated.c.inc',
depends: helper_dep,
depend_files: [hex_common_py, attribs_def, gen_tcg_h, gen_tcg_hvx_h],
command: [python, files('gen_tcg_funcs.py'), helper_in, '@OUTPUT@'],
)
hexagon_ss.add(tcg_funcs_generated)
target_arch += {'hexagon': hexagon_ss}
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