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[37.6.160.241]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4264a2ca5casm22471015e9.32.2024.07.04.05.15.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Jul 2024 05:15:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1720095356; x=1720700156; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=hS0Lhnq0ub+oR2j0gfm0V0iTzo6BJYZeeH7eXts0Kaw=; b=crLPjKpT+MRDjpqVRMzq0UXdIwBU6Hlz6Njeo3BBO/BIEqux3JTBYy+nEJ9oa7hS7K 4tTGCnxnQB3cji2DoCUFxSpZzFVVyJvKQoYEJamgqQJ5Zviy3cU3DCTUzK35THDTE1sP KlSPcIJDCZmI202JoXXTohS7YIAW6Xu1kW7ThwsPWlrup5h842snB5sOXoReVj7HlWni KptIa1fzsBCuMINAggJifxzzpoZBqLsDom7aYzEKtcQNJnjteo6WWrx4shJg2475sKr+ N1zW+PEozV2FkvNSjVEV4TrxHOoiOGgQUtfMmD2FIiqrz44WS9TBd+wflYMFkmpkH5U/ Ja9A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720095356; x=1720700156; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=hS0Lhnq0ub+oR2j0gfm0V0iTzo6BJYZeeH7eXts0Kaw=; b=VFMkzQIOPZ8DDCiQuYhys/PmWGMfh68yFqf1RiCyzqUt+P39KTelJXp/doil8vjVZi xy5iZZithvTYFNmrr7irPEzAssOCRulhhn3irmMhQE9VrrLJ9WqsAfld4MiVlj2RKi9M msyz5IkI/TIko+2qLyg8lzphWOo+VBbTgWkA0epQml++pSncHks2LENjI/8oSpApPTLj cv3Fje5voBDuVcdyyK9f99NZgDBckiq25lfSSy7ngmOhimkCJJUeQHKO/mwlCMTbIQb+ 74CNy8tlH0ayHUpzvURERf3BZFfbLLeiTrwoFB68quephlM0V4onjcvQ42lv16Re/WNz wfyQ== X-Gm-Message-State: AOJu0YytukstvLH+SfvQ35CgOk/Z3EzQ8wqxOttaG0ome7AYoiS+xUvG yN42x1v9Nli9i+q1vyp7+QqcBNKaB3vwZnYvvFJEyp2rVcX99aLaCOfZKKFxUGWGRsz+5DmM7Tf bYnw= X-Google-Smtp-Source: AGHT+IHzRHMDXaZdadaT9o6rjkbm9o22rGbLSPF3ap3w5u/y4Mn+lFWPO8cTMPPLVahqIA17DTR/mg== X-Received: by 2002:a05:651c:105c:b0:2ec:57c7:c737 with SMTP id 38308e7fff4ca-2ee8edfead1mr10418981fa.40.1720095354847; Thu, 04 Jul 2024 05:15:54 -0700 (PDT) From: Manos Pitsidianakis To: qemu-devel@nongnu.org Cc: Stefan Hajnoczi , Mads Ynddal , Peter Maydell , =?UTF-8?q?Alex=20Benn=C3=A9e?= , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Thomas Huth , Markus Armbruster , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Zhao Liu , Gustavo Romero , Pierrick Bouvier , rowan.hart@intel.com, Richard Henderson , Paolo Bonzini , John Snow , Cleber Rosa Subject: [RFC PATCH v4 1/7] build-sys: Add rust feature option Date: Thu, 4 Jul 2024 15:15:37 +0300 Message-ID: <12f78335f01f2264b91b3170995aa86ccae7d0cb.1720094395.git.manos.pitsidianakis@linaro.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::230; envelope-from=manos.pitsidianakis@linaro.org; helo=mail-lj1-x230.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 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1720095442672100012 Add options for Rust in meson_options.txt, meson.build, configure to prepare for adding Rust code in the followup commits. `rust` is a reserved meson name, so we have to use an alternative. `with_rust` was chosen. A cargo_wrapper.py script is added that is heavily based on the work of Marc-Andr=C3=A9 Lureau from 2021. https://patchew.org/QEMU/20210907121943.3498701-1-marcandre.lureau@redhat.c= om/ Signed-off-by: Marc-Andr=C3=A9 Lureau Signed-off-by: Manos Pitsidianakis --- MAINTAINERS | 5 + configure | 11 ++ meson.build | 11 ++ meson_options.txt | 5 + scripts/cargo_wrapper.py | 294 ++++++++++++++++++++++++++++++++++ scripts/meson-buildoptions.sh | 6 + 6 files changed, 332 insertions(+) create mode 100644 scripts/cargo_wrapper.py diff --git a/MAINTAINERS b/MAINTAINERS index 6725913c8b..d01bd06ab7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4226,6 +4226,11 @@ F: docs/sphinx/ F: docs/_templates/ F: docs/devel/docs.rst =20 +Rust build system integration +M: Manos Pitsidianakis +S: Maintained +F: scripts/cargo_wrapper.py + Miscellaneous ------------- Performance Tools and Tests diff --git a/configure b/configure index 8b6a2f16ce..180d87b9c9 100755 --- a/configure +++ b/configure @@ -302,6 +302,9 @@ else objcc=3D"${objcc-${cross_prefix}clang}" fi =20 +with_rust=3D"auto" +with_rust_target_triple=3D"" + ar=3D"${AR-${cross_prefix}ar}" as=3D"${AS-${cross_prefix}as}" ccas=3D"${CCAS-$cc}" @@ -757,6 +760,12 @@ for opt do ;; --gdb=3D*) gdb_bin=3D"$optarg" ;; + --enable-with-rust) with_rust=3Denabled + ;; + --disable-with-rust) with_rust=3Ddisabled + ;; + --with-rust-target-triple=3D*) with_rust_target_triple=3D"$optarg" + ;; # everything else has the same name in configure and meson --*) meson_option_parse "$opt" "$optarg" ;; @@ -1789,6 +1798,8 @@ if test "$skip_meson" =3D no; then test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engin= e=3D$LIB_FUZZING_ENGINE" test "$plugins" =3D yes && meson_option_add "-Dplugins=3Dtrue" test "$tcg" !=3D enabled && meson_option_add "-Dtcg=3D$tcg" + test "$with_rust" !=3D enabled && meson_option_add "-Dwith_rust=3D$with_= rust" + test "$with_rust_target_triple" !=3D "" && meson_option_add "-Dwith_rust= _target_triple=3D$with_rust_target_triple" run_meson() { NINJA=3D$ninja $meson setup "$@" "$PWD" "$source_path" } diff --git a/meson.build b/meson.build index 2f981f936e..11b8b146da 100644 --- a/meson.build +++ b/meson.build @@ -290,6 +290,12 @@ foreach lang : all_languages endif endforeach =20 +cargo =3D not_found +if get_option('with_rust').allowed() + cargo =3D find_program('cargo', required: get_option('with_rust')) +endif +with_rust =3D cargo.found() + # default flags for all hosts # We use -fwrapv to tell the compiler that we require a C dialect where # left shift of signed integers is well defined and has the expected @@ -2118,6 +2124,7 @@ endif =20 config_host_data =3D configuration_data() =20 +config_host_data.set('CONFIG_WITH_RUST', with_rust) audio_drivers_selected =3D [] if have_system audio_drivers_available =3D { @@ -4243,6 +4250,10 @@ if 'objc' in all_languages else summary_info +=3D {'Objective-C compiler': false} endif +summary_info +=3D {'Rust support': with_rust} +if with_rust and get_option('with_rust_target_triple') !=3D '' + summary_info +=3D {'Rust target': get_option('with_rust_target_tripl= e')} +endif option_cflags =3D (get_option('debug') ? ['-g'] : []) if get_option('optimization') !=3D 'plain' option_cflags +=3D ['-O' + get_option('optimization')] diff --git a/meson_options.txt b/meson_options.txt index 0269fa0f16..3443c48001 100644 --- a/meson_options.txt +++ b/meson_options.txt @@ -371,3 +371,8 @@ option('hexagon_idef_parser', type : 'boolean', value := true, =20 option('x86_version', type : 'combo', choices : ['0', '1', '2', '3', '4'],= value: '1', description: 'tweak required x86_64 architecture version beyond com= piler default') + +option('with_rust', type: 'feature', value: 'auto', + description: 'Enable Rust support') +option('with_rust_target_triple', type : 'string', value: '', + description: 'Override Rust target triple') diff --git a/scripts/cargo_wrapper.py b/scripts/cargo_wrapper.py new file mode 100644 index 0000000000..d2c7265461 --- /dev/null +++ b/scripts/cargo_wrapper.py @@ -0,0 +1,294 @@ +#!/usr/bin/env python3 + +"""Wrap cargo builds for meson integration + +This program builds Rust library crates and makes sure: + - They receive the correct --cfg compile flags from the QEMU build that c= alls + it. + - They receive the generated Rust bindings path so that they can copy it + inside their output subdirectories. + - Cargo puts all its build artifacts in the appropriate meson build direc= tory. + - The produced static libraries are copied to the path the caller (meson) + defines. + +Copyright (c) 2020 Red Hat, Inc. +Copyright (c) 2024 Linaro Ltd. + +Authors: + Marc-Andr=C3=A9 Lureau + 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 json +import logging +import os +import subprocess +import sys +import shutil + +from pathlib import Path +from typing import Any, Dict, 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=3D"utf-8") as cfg: + config =3D [l.split()[1:] for l in cfg if l.startswith("#define")] + + cfg_list =3D [] + for cfg in config: + name =3D cfg_name(cfg[0]) + if not name: + continue + if len(cfg) >=3D 2 and cfg[1] !=3D "1": + continue + cfg_list.append("--cfg") + cfg_list.append(name) + return cfg_list + + +def cargo_target_dir(args: argparse.Namespace) -> Path: + """Place cargo's build artifacts into meson's build directory""" + return args.private_dir + + +def manifest_path(args: argparse.Namespace) -> Path: + """Returns the Cargo.toml manifest path""" + return args.crate_dir / "Cargo.toml" + + +def get_cargo_rustc(args: argparse.Namespace) -> tuple[Dict[str, Any], Lis= t[str]]: + """Returns the appropriate cargo invocation and environment""" + + # See https://doc.rust-lang.org/cargo/reference/environment-variables.= html + # Item `CARGO_ENCODED_RUSTFLAGS =E2=80=94 A list of custom flags separ= ated by + # 0x1f (ASCII Unit Separator) to pass to all compiler invocations that= Cargo + # performs` + cfg =3D chr(0x1F).join( + [c for h in args.config_headers for c in generate_cfg_flags(h)] + ) + target_dir =3D cargo_target_dir(args) + cargo_path =3D manifest_path(args) + + cargo_cmd =3D [ + "cargo", + "build", + "--target-dir", + str(target_dir), + "--manifest-path", + str(cargo_path), + ] + if args.target_triple: + cargo_cmd +=3D ["--target", args.target_triple] + if args.profile =3D=3D "release": + cargo_cmd +=3D ["--release"] + + env =3D os.environ + env["CARGO_ENCODED_RUSTFLAGS"] =3D cfg + + return (env, cargo_cmd) + + +def run_cargo(env: Dict[str, Any], cargo_cmd: List[str]) -> str: + """Calls cargo build invocation.""" + envlog =3D " ".join([f"{k}=3D{v}" for k, v in env.items()]) + cmdlog =3D " ".join(cargo_cmd) + logging.debug("Running %s %s", envlog, cmdlog) + try: + out =3D subprocess.check_output( + cargo_cmd, + env=3Ddict(os.environ, **env), + stderr=3Dsubprocess.STDOUT, + universal_newlines=3DTrue, + ) + except subprocess.CalledProcessError as err: + print("Environment: " + envlog) + print("Command: " + cmdlog) + print(err.output) + sys.exit(1) + + return out + + +def get_package_name(cargo_toml_path: Path) -> str: + """Attempts to get package name from cargo manifest file with toml par= sing libraries.""" + # pylint: disable=3Dimport-outside-toplevel + + try: + import tomllib + except ImportError: + import tomli as tomllib + with open(cargo_toml_path, "rb") as toml_file: + config =3D tomllib.load(toml_file) + + package_name =3D config["package"]["name"].strip('"').replace("-", "_") + return package_name + + +def get_package_name_json(cargo_toml_path: Path) -> str: + """Attempts to get package name from cargo-metadata output which has a= standard JSON format.""" + + cmd =3D [ + "cargo", + "metadata", + "--format-version", + "1", + "--no-deps", + "--manifest-path", + str(cargo_toml_path), + "--offline", + ] + try: + out =3D subprocess.check_output( + cmd, + env=3Dos.environ, + stderr=3Dsubprocess.STDOUT, + universal_newlines=3DTrue, + ) + except subprocess.CalledProcessError as err: + print("Command: ", " ".join(cmd)) + print(err.output) + raise err + package_name =3D json.loads(out)["packages"][0]["name"].strip('"').rep= lace("-", "_") + return package_name + + +def build_lib(args: argparse.Namespace) -> None: + """Builds Rust lib given by command line arguments.""" + + logging.debug("build-lib") + target_dir =3D cargo_target_dir(args) + cargo_toml_path =3D manifest_path(args) + + try: + # If we have tomllib or tomli, parse the .toml file + package_name =3D get_package_name(cargo_toml_path) + except ImportError as import_exc: + try: + # Parse the json output of cargo-metadata as a fallback + package_name =3D get_package_name_json(cargo_toml_path) + except Exception as exc: + raise exc from import_exc + + liba_filename =3D "lib" + package_name + ".a" + profile_dir =3D args.profile + if args.profile =3D=3D "dev": + profile_dir =3D "debug" + + liba =3D target_dir / args.target_triple / profile_dir / liba_filename + + env, cargo_cmd =3D get_cargo_rustc(args) + out =3D run_cargo(env, cargo_cmd) + logging.debug("cargo output: %s", out) + logging.debug("cp %s %s", liba, args.outdir) + shutil.copy2(liba, args.outdir) + + +def main() -> None: + # pylint: disable=3Dmissing-function-docstring + parser =3D argparse.ArgumentParser() + parser.add_argument("-v", "--verbose", action=3D"store_true") + parser.add_argument( + "--color", + metavar=3D"WHEN", + choices=3D["auto", "always", "never"], + default=3D"auto", + help=3D"Coloring: auto, always, never", + ) + parser.add_argument( + "--config-headers", + metavar=3D"CONFIG_HEADER", + action=3D"append", + dest=3D"config_headers", + help=3D"paths to any configuration C headers (*.h files), if any", + required=3DFalse, + default=3D[], + ) + parser.add_argument( + "--meson-build-dir", + metavar=3D"BUILD_DIR", + help=3D"meson.current_build_dir()", + type=3DPath, + dest=3D"meson_build_dir", + required=3DTrue, + ) + parser.add_argument( + "--meson-source-dir", + metavar=3D"SOURCE_DIR", + help=3D"meson.current_source_dir()", + type=3DPath, + dest=3D"meson_build_dir", + required=3DTrue, + ) + parser.add_argument( + "--crate-dir", + metavar=3D"CRATE_DIR", + type=3DPath, + dest=3D"crate_dir", + help=3D"Absolute path that contains the manifest file of the crate= to compile. Example: '/path/to/qemu/rust/pl011'", + required=3DTrue, + ) + parser.add_argument( + "--outdir", + metavar=3D"OUTDIR", + type=3DPath, + dest=3D"outdir", + help=3D"Destination path to copy compiled artifacts to for Meson t= o use. Example values: '/path/to/qemu/build', '.'", + required=3DTrue, + ) + # using @PRIVATE_DIR@ is necessary for `ninja clean` to clean up rust'= s intermediate build artifacts. + # NOTE: at the moment cleanup doesn't work due to a bug: https://githu= b.com/mesonbuild/meson/issues/7584 + parser.add_argument( + "--private-dir", + metavar=3D"PRIVATE_DIR", + type=3DPath, + dest=3D"private_dir", + help=3D"Override cargo's target directory with a meson provided pr= ivate directory.", + required=3DTrue, + ) + parser.add_argument( + "--profile", type=3Dstr, choices=3D["release", "dev"], required=3D= True + ) + parser.add_argument("--target-triple", type=3Dstr, required=3DTrue) + + subparsers =3D parser.add_subparsers() + + buildlib =3D subparsers.add_parser("build-lib") + buildlib.set_defaults(func=3Dbuild_lib) + + args =3D parser.parse_args() + if args.verbose: + logging.basicConfig(level=3Dlogging.DEBUG) + logging.debug("args: %s", args) + + args.func(args) + + +if __name__ =3D=3D "__main__": + main() diff --git a/scripts/meson-buildoptions.sh b/scripts/meson-buildoptions.sh index cfadb5ea86..23a24ccaa7 100644 --- a/scripts/meson-buildoptions.sh +++ b/scripts/meson-buildoptions.sh @@ -79,6 +79,8 @@ meson_options_help() { printf "%s\n" ' auto/sigaltstack/ucontext/wind= ows)' printf "%s\n" ' --with-pkgversion=3DVALUE use specified string as sub-= version of the' printf "%s\n" ' package' + printf "%s\n" ' --with-rust-target-triple=3DVALUE' + printf "%s\n" ' Specify Rust host target tripl= e' printf "%s\n" ' --with-suffix=3DVALUE Suffix for QEMU data/modules= /config directories' printf "%s\n" ' (can be empty) [qemu]' printf "%s\n" ' --with-trace-file=3DVALUE Trace file prefix for simple= backend [trace]' @@ -216,6 +218,7 @@ meson_options_help() { printf "%s\n" ' vvfat vvfat image format support' printf "%s\n" ' werror Treat warnings as errors' printf "%s\n" ' whpx WHPX acceleration support' + printf "%s\n" ' with-rust Enable Rust support' printf "%s\n" ' xen Xen backend support' printf "%s\n" ' xen-pci-passthrough' printf "%s\n" ' Xen PCI passthrough support' @@ -552,6 +555,9 @@ _meson_option_parse() { --enable-whpx) printf "%s" -Dwhpx=3Denabled ;; --disable-whpx) printf "%s" -Dwhpx=3Ddisabled ;; --x86-version=3D*) quote_sh "-Dx86_version=3D$2" ;; + --enable-with-rust) printf "%s" -Dwith_rust=3Denabled ;; + --disable-with-rust) printf "%s" -Dwith_rust=3Ddisabled ;; + --with-rust-target-triple=3D*) quote_sh "-Dwith_rust_target_triple=3D$= 2" ;; --enable-xen) printf "%s" -Dxen=3Denabled ;; --disable-xen) printf "%s" -Dxen=3Ddisabled ;; --enable-xen-pci-passthrough) printf "%s" -Dxen_pci_passthrough=3Denab= led ;; --=20 =CE=B3=CE=B1=E1=BF=96=CE=B1 =CF=80=CF=85=CF=81=CE=AF =CE=BC=CE=B9=CF=87=CE= =B8=CE=AE=CF=84=CF=89