@@ -4231,7 +4231,11 @@ F: docs/devel/docs.rst
Rust build system integration
M: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
S: Maintained
+F: scripts/rustc_args.py
+F: rust/.gitignore
F: rust/Kconfig
+F: rust/meson.build
+F: rust/wrapper.h
Miscellaneous
-------------
@@ -298,6 +298,20 @@ foreach lang : all_languages
endif
endforeach
+if have_rust
+ rust_args = []
+
+ if rustc.version().version_compare('<1.77.2')
+ error('rustc version ' + rustc.version() + ' is unsupported: Please upgrade to at least 1.77.2')
+ endif
+
+ if get_option('debug')
+ rust_args += ['-g']
+ endif
+ if get_option('optimization') not in ['0', '1', 'g']
+ rust_args += ['-O']
+ endif
+endif
# 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
@@ -3828,6 +3842,48 @@ common_all = static_library('common',
implicit_include_directories: false,
dependencies: common_ss.all_dependencies())
+if have_rust and have_system
+ rust_args += run_command(
+ meson.global_source_root() / 'scripts/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: [
+ '--raw-line', '#![allow(non_camel_case_types)]',
+ '--raw-line', '#![allow(non_snake_case)]',
+ '--raw-line', '#![allow(non_upper_case_globals)]',
+ '--raw-line', '#![allow(improper_ctypes_definitions)]',
+ '--raw-line', '#![allow(improper_ctypes)]',
+ '--raw-line', 'unsafe impl Send for Property {}',
+ '--raw-line', 'unsafe impl Sync for Property {}',
+ '--raw-line', 'unsafe impl Sync for TypeInfo {}',
+ '--raw-line', 'unsafe impl Sync for VMStateDescription {}',
+ '--ctypes-prefix', 'core::ffi',
+ '--formatter', 'rustfmt',
+ '--generate-block',
+ '--generate-cstr',
+ '--impl-debug',
+ '--merge-extern-blocks',
+ '--no-doc-comments',
+ '--no-include-path-detection',
+ '--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'
new file mode 100644
@@ -0,0 +1,39 @@
+/*
+ * QEMU System Emulator
+ *
+ * Copyright 2024 Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
+ *
+ * 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"
new file mode 100644
@@ -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
new file mode 100644
new file mode 100644
@@ -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 <manos.pitsidianakis@linaro.org>
+
+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 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()
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: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> --- MAINTAINERS | 4 +++ meson.build | 56 +++++++++++++++++++++++++++++ rust/wrapper.h | 39 ++++++++++++++++++++ rust/.gitignore | 3 ++ rust/meson.build | 0 scripts/rustc_args.py | 84 +++++++++++++++++++++++++++++++++++++++++++ 6 files changed, 186 insertions(+) create mode 100644 rust/wrapper.h create mode 100644 rust/.gitignore create mode 100644 rust/meson.build create mode 100644 scripts/rustc_args.py