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[37.6.163.242]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a86e594fa62sm96280066b.198.2024.08.27.04.23.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Aug 2024 04:23:45 -0700 (PDT) From: Manos Pitsidianakis Date: Tue, 27 Aug 2024 14:23:13 +0300 Subject: [PATCH v9 4/9] rust: add bindgen step as a meson dependency MIME-Version: 1.0 Message-Id: <20240827-rust-pl011-v9-4-e90b9c28f861@linaro.org> References: <20240827-rust-pl011-v9-0-e90b9c28f861@linaro.org> In-Reply-To: <20240827-rust-pl011-v9-0-e90b9c28f861@linaro.org> To: qemu-devel@nongnu.org Cc: Paolo Bonzini , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Thomas Huth , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Pierrick Bouvier , Richard Henderson , Gustavo Romero , =?utf-8?q?Alex_Benn=C3=A9e?= , Peter Maydell , Junjie Mao , Zhao Liu , Manos Pitsidianakis X-Mailer: b4 0.15-dev-b8758 X-Developer-Signature: v=1; a=openpgp-sha256; l=7725; i=manos.pitsidianakis@linaro.org; h=from:subject:message-id; bh=QShEL48bEPUFi3KY8OJXU63M+qSX9k/RO314TD1AkSo=; b=LS0tLS1CRUdJTiBQR1AgTUVTU0FHRS0tLS0tCgpvd0VCYlFLUy9aQU5Bd0FLQVhjcHgzQi9mZ 25RQWNzbVlnQm16YmMwdHFkaE15ZTY2cnpFY211SzhwcTZpOEorCjViVkl6eitOcWFOUnUraXor b0NKQWpNRUFBRUtBQjBXSVFUTVhCdE9SS0JXODRkd0hSQjNLY2R3ZjM0SjBBVUMKWnMyM05BQUt DUkIzS2Nkd2YzNEowTlFIRC85RVFreE90NU5SWFcyU290U2thbkhFSlRYNFZvQVV3ZWZKZHhoZw owR0JqRGtQTFViWXhlcDlmZk40ZTdIYjF4RkU3RFFlQzAyYTE1S0tWTUxFY2t3TkJ5bnYyWFVJM FRtNXYrTHdoCmJSK3c2Sk4xME1teXB1ejEvdkQ2eW5BQzNDS0ZpWFNTWnQwWHNLNGpyZzljcEFh b2s5UUZ6VUpTMGJzcEJXSEoKOGIyL0N1SE1scVl2dGFJQTBIK09iTWNTbE92bGVGZEVEb25CaDB rN09KYndmcDI3ajJSaVRFY0FNekFsNUdSUgpwemVKaEI3UDRRVm8rTHh6eVBIeHZWRFVFZklGYl VxdytsUkpaKzRMTHhrY1o2V3U0VUppckovcEFBdDRCamd1CmxkZER0dm4rcTZtMWdxTVNSY0lEN 3ByeE1SaGxzcmQyRllmQlFmQXpRTzhJMitZWkh5SWdWbnB0ZW1veEQvL3EKNlFhUWFRVFNwNUsv d1VhQnV5NWV1bEQrUzI5L05GeHF3UFpiOHlHUU90cnhrMllxTXhEZEE0NUdHckRtNVJjZwpWcEV XcUNWbGpiTFVWS0NKbkU3U1krMDNzazI3cTZXL2F2clIxUC9YNFdFc25SRmc3REdiTVpNb3FUK2 dKZHVaCng0dVg3bHVWREdlRmZsVXJhVUhjNWhpZ01ZVWxyUkgxcWNlS2xpVzZXVkl6a2dGQkpES W1yckZXMTQyZ095RlcKdkVNeTk1UnBpdWh3TWRGdm1aYnZ5NEtzcUt0YVJ6ZUZ3UFFoeWtzMC9J MDhSYmxEMjhEUWl4ZVNMRHpJRElVVwpWZ1pMRmNoSFkvUGlVMnZkVXBHVlBUc1F1UHp4TGY2Kzd xbkJMUGg0NWMrOUYzb3djcTFhcy8zR1ZrdCtDVVFrClNaMWhVZz09Cj00SGIvCi0tLS0tRU5EIF BHUCBNRVNTQUdFLS0tLS0K X-Developer-Key: i=manos.pitsidianakis@linaro.org; a=openpgp; fpr=7C721DF9DB3CC7182311C0BF68BC211D47B421E1 Received-SPF: pass client-ip=2a00:1450:4864:20::62e; envelope-from=manos.pitsidianakis@linaro.org; helo=mail-ej1-x62e.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Add bindings_rs target for generating rust bindings to target-independent qemu C APIs. The bindings need be created before any rust crate that uses them is compiled. The bindings.rs file will end up in BUILDDIR/bindings.rs and have the same name as a target: ninja bindings.rs Signed-off-by: Paolo Bonzini Signed-off-by: Manos Pitsidianakis --- MAINTAINERS | 4 +++ meson.build | 34 +++++++++++++++++++ rust/wrapper.h | 39 +++++++++++++++++++++ rust/.gitignore | 3 ++ rust/meson.build | 0 scripts/rust/rustc_args.py | 84 ++++++++++++++++++++++++++++++++++++++++++++++ 6 files changed, 164 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 0bc8e515da..642c07a9ff 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4246,7 +4246,11 @@ F: docs/devel/docs.rst Rust build system integration M: Manos Pitsidianakis S: Maintained +F: scripts/rust/ +F: rust/.gitignore F: rust/Kconfig +F: rust/meson.build +F: rust/wrapper.h Miscellaneous ------------- diff --git a/meson.build b/meson.build index 065739ccb7..05446acbc6 100644 --- a/meson.build +++ b/meson.build @@ -3871,6 +3871,40 @@ common_all = static_library('common', implicit_include_directories: false, dependencies: common_ss.all_dependencies()) +if have_rust and have_system + rustc_config_args = run_command( + find_program('scripts/rust/rustc_args.py'), + '--config-headers', meson.project_build_root() / 'config-host.h', + capture : true, + check: true).stdout().strip().split() + + bindings_rs = import('rust').bindgen( + input: 'rust/wrapper.h', + dependencies: common_ss.all_dependencies(), + output: 'bindings.rs', + include_directories: include_directories('.', 'include'), + bindgen_version: ['>=0.69.4'], + args: [ + '--disable-header-comment', + '--raw-line', '// @generated', + '--ctypes-prefix', 'core::ffi', + '--formatter', 'rustfmt', + '--generate-block', + '--generate-cstr', + '--impl-debug', + '--merge-extern-blocks', + '--no-doc-comments', + '--use-core', + '--with-derive-default', + '--allowlist-file', meson.project_source_root() + '/include/.*', + '--allowlist-file', meson.project_source_root() + '/.*', + '--allowlist-file', meson.project_build_root() + '/.*' + ], + ) + subdir('rust') +endif + + feature_to_c = find_program('scripts/feature_to_c.py') if host_os == 'darwin' diff --git a/rust/wrapper.h b/rust/wrapper.h new file mode 100644 index 0000000000..51985f0ef1 --- /dev/null +++ b/rust/wrapper.h @@ -0,0 +1,39 @@ +/* + * QEMU System Emulator + * + * Copyright 2024 Manos Pitsidianakis + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "qemu/osdep.h" +#include "qemu/module.h" +#include "qemu-io.h" +#include "sysemu/sysemu.h" +#include "hw/sysbus.h" +#include "exec/memory.h" +#include "chardev/char-fe.h" +#include "hw/clock.h" +#include "hw/qdev-clock.h" +#include "hw/qdev-properties.h" +#include "hw/qdev-properties-system.h" +#include "hw/irq.h" +#include "qapi/error.h" +#include "migration/vmstate.h" +#include "chardev/char-serial.h" diff --git a/rust/.gitignore b/rust/.gitignore new file mode 100644 index 0000000000..1bf71b1f68 --- /dev/null +++ b/rust/.gitignore @@ -0,0 +1,3 @@ +# Ignore any cargo development build artifacts; for qemu-wide builds, all build +# artifacts will go to the meson build directory. +target diff --git a/rust/meson.build b/rust/meson.build new file mode 100644 index 0000000000..e69de29bb2 diff --git a/scripts/rust/rustc_args.py b/scripts/rust/rustc_args.py new file mode 100644 index 0000000000..e4cc9720e1 --- /dev/null +++ b/scripts/rust/rustc_args.py @@ -0,0 +1,84 @@ +#!/usr/bin/env python3 + +"""Generate rustc arguments for meson rust builds. + +This program generates --cfg compile flags for the configuration headers passed +as arguments. + +Copyright (c) 2024 Linaro Ltd. + +Authors: + Manos Pitsidianakis + +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 . +""" + +import argparse +import logging + +from typing import List + + +def generate_cfg_flags(header: str) -> List[str]: + """Converts defines from config[..].h headers to rustc --cfg flags.""" + + def cfg_name(name: str) -> str: + """Filter function for C #defines""" + if ( + name.startswith("CONFIG_") + or name.startswith("TARGET_") + or name.startswith("HAVE_") + ): + return name + return "" + + with open(header, encoding="utf-8") as cfg: + config = [l.split()[1:] for l in cfg if l.startswith("#define")] + + cfg_list = [] + for cfg in config: + name = cfg_name(cfg[0]) + if not name: + continue + if len(cfg) >= 2 and cfg[1] != "1": + continue + cfg_list.append("--cfg") + cfg_list.append(name) + return cfg_list + + +def main() -> None: + # pylint: disable=missing-function-docstring + parser = argparse.ArgumentParser() + parser.add_argument("-v", "--verbose", action="store_true") + parser.add_argument( + "--config-headers", + metavar="CONFIG_HEADER", + action="append", + dest="config_headers", + help="paths to any configuration C headers (*.h files), if any", + required=False, + default=[], + ) + args = parser.parse_args() + if args.verbose: + logging.basicConfig(level=logging.DEBUG) + logging.debug("args: %s", args) + for header in args.config_headers: + for tok in generate_cfg_flags(header): + print(tok) + + +if __name__ == "__main__": + main()