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From: "Alex Bennée" <alex.bennee@linaro.org>
To: Junjie Mao <junjie.mao@intel.com>
Cc: "Manos Pitsidianakis" <manos.pitsidianakis@linaro.org>,
	qemu-devel@nongnu.org, "Paolo Bonzini" <pbonzini@redhat.com>,
	"Marc-André Lureau" <marcandre.lureau@redhat.com>,
	"Daniel P. Berrangé" <berrange@redhat.com>,
	"Thomas Huth" <thuth@redhat.com>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Pierrick Bouvier" <pierrick.bouvier@linaro.org>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Gustavo Romero" <gustavo.romero@linaro.org>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	"Zhao Liu" <zhao1.liu@intel.com>
Subject: Re: [PATCH RESEND v9 7/9] rust: add crate to expose bindings and interfaces
Date: Fri, 30 Aug 2024 12:03:15 +0100	[thread overview]
Message-ID: <87y14e1de4.fsf@draig.linaro.org> (raw)
In-Reply-To: <dd2ed180-3624-4981-adb7-c78e699048a7@intel.com> (Junjie Mao's message of "Fri, 30 Aug 2024 09:19:15 +0800")

Junjie Mao <junjie.mao@intel.com> writes:

> On 8/28/2024 9:08 PM, Alex Bennée wrote:
>> Manos Pitsidianakis <manos.pitsidianakis@linaro.org> writes:
>> 
>>> Add rust/qemu-api, which exposes rust-bindgen generated FFI bindings and
>>> provides some declaration macros for symbols visible to the rest of
>>> QEMU.
>> As mentioned on IRC I'm hitting a compilation error that bisects to
>> this
>> commit:
>>    [148/1010] Generating bindings for Rust
>> rustmod-bindgen-rust_wrapper.h
>>    FAILED: bindings.rs
>>    /home/alex/.cargo/bin/bindgen ../../rust/wrapper.h --output
>> /home/alex/lsrc/qemu.git/builds/rust/bindings.rs
>> --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
>> '/home/alex/lsrc/qemu.git/include/.*' --allowlist-file
>> '/home/alex/lsrc/qemu.git/.*' --allowlist-file
>> '/home/alex/lsrc/qemu.git/builds/rust/.*' --
>> -I/home/alex/lsrc/qemu.git/.
>> -I/home/alex/lsrc/qemu.git/builds/rust/.
>> -I/home/alex/lsrc/qemu.git/include
>> -I/home/alex/lsrc/qemu.git/builds/rust/include
>> -I/usr/include/capstone -I/usr/include/p11-kit-1
>> -I/usr/include/pixman-1 -I/usr/include/libpng16
>> -I/usr/include/spice-server -I/usr/include/spice-1
>> -I/usr/include/spice-1 -DSTRUCT_IOVEC_DEFINED
>> -I/usr/include/libusb-1.0 -I/usr/include/SDL2 -D_REENTRANT
>> -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include
>> -pthread -I/usr/include/libmount -I/usr/include/blkid
>> -I/usr/include/gio-unix-2.0 -I/usr/include/glib-2.0
>> -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -pthread
>> -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/slirp
>> -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include
>> -DNCURSES_WIDECHAR=1 -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=600
>> -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include
>> -I/usr/include/gtk-3.0 -I/usr/include/pango-1.0
>> -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include
>> -I/usr/include/harfbuzz -I/usr/include/freetype2
>> -I/usr/include/libpng16 -I/usr/include/libmount -I/usr/include/blkid
>> -I/usr/include/fribidi -I/usr/include/cairo -I/usr/include/pixman-1
>> -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/x86_64-linux-gnu
>> -I/usr/include/gio-unix-2.0 -I/usr/include/atk-1.0
>> -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0
>> -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include
>> -pthread -I/usr/include/gtk-3.0 -I/usr/include/pango-1.0
>> -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include
>> -I/usr/include/harfbuzz -I/usr/include/freetype2
>> -I/usr/include/libpng16 -I/usr/include/libmount -I/usr/include/blkid
>> -I/usr/include/fribidi -I/usr/include/cairo -I/usr/include/pixman-1
>> -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/x86_64-linux-gnu
>> -I/usr/include/gio-unix-2.0 -I/usr/include/atk-1.0
>> -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0
>> -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include
>> -pthread -I/usr/include/vte-2.91 -I/usr/include/glib-2.0
>> -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/libmount
>> -I/usr/include/blkid -I/usr/include/pango-1.0
>> -I/usr/include/harfbuzz -I/usr/include/freetype2
>> -I/usr/include/libpng16 -I/usr/include/fribidi -I/usr/include/cairo
>> -I/usr/include/pixman-1 -I/usr/include/gtk-3.0
>> -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/x86_64-linux-gnu
>> -I/usr/include/gio-unix-2.0 -I/usr/include/atk-1.0
>> -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0
>> -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include
>> -pthread -I/usr/include/glib-2.0
>> -I/usr/lib/x86_64-linux-gnu/glib-2.0/include
>> -I/usr/include/spice-server -I/usr/include/spice-1
>> -I/usr/include/cacard -I/usr/include/glib-2.0
>> -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/nss
>> -I/usr/include/nspr -I/usr/include/PCSC -pthread -D_REENTRANT
>> -I/usr/include/pipewire-0.3 -I/usr/include/spa-0.2 -D_REENTRANT
>> -I/usr/include/p11-kit-1 -I/usr/include/fuse3
>> -I/usr/include/x86_64-linux-gnu -D_FILE_OFFSET_BITS=64
>> -D__USE_FILE_OFFSET64 -D__USE_LARGEFILE64 -DUSE_POSIX_ACLS=1
>> -I/usr/include/uuid -I/usr/include/glib-2.0
>> -I/usr/lib/x86_64-linux-gnu/glib-2.0/include
>> -I/usr/include/p11-kit-1 -I/usr/include/p11-kit-1
>> -I/usr/include/p11-kit-1 -I/usr/include/p11-kit-1 -D_GNU_SOURCE
>> -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -I/usr/include/glib-2.0
>> -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -std=gnu11 -MD -MQ
>> ../../rust/wrapper.h -MF wrapper.h.d
>>    /usr/include/liburing.h:296:3: error: use of undeclared identifier 'memory_order_release'
>>    /usr/include/liburing.h:1080:11: error: use of undeclared identifier 'memory_order_acquire'
>>    /usr/include/liburing.h:1116:9: error: use of undeclared identifier 'memory_order_acquire'
>>    /usr/include/liburing.h:1125:9: error: use of undeclared identifier 'memory_order_relaxed'
>>    /usr/include/liburing.h:1161:2: error: use of undeclared identifier 'memory_order_relaxed'
>>    /usr/include/liburing.h:1197:19: error: use of undeclared identifier 'memory_order_acquire'
>>    /usr/include/liburing.h:1267:10: error: use of undeclared identifier 'memory_order_relaxed'
>>    /usr/include/liburing.h:1269:10: error: use of undeclared identifier 'memory_order_acquire'
>>    /usr/include/liburing.h:1320:2: error: use of undeclared identifier 'memory_order_release'
>>    panicked at /home/alex/.cargo/registry/src/index.crates.io-6f17d22bba15001f/bindgen-cli-0.69.4/main.rs:52:36:
>>    Unable to generate bindings:
>> ClangDiagnostic("/usr/include/liburing.h:296:3: error: use of
>> undeclared identifier
>> 'memory_order_release'\n/usr/include/liburing.h:1080:11: error: use
>> of undeclared identifier
>> 'memory_order_acquire'\n/usr/include/liburing.h:1116:9: error: use
>> of undeclared identifier
>> 'memory_order_acquire'\n/usr/include/liburing.h:1125:9: error: use
>> of undeclared identifier
>> 'memory_order_relaxed'\n/usr/include/liburing.h:1161:2: error: use
>> of undeclared identifier
>> 'memory_order_relaxed'\n/usr/include/liburing.h:1197:19: error: use
>> of undeclared identifier
>> 'memory_order_acquire'\n/usr/include/liburing.h:1267:10: error: use
>> of undeclared identifier
>> 'memory_order_relaxed'\n/usr/include/liburing.h:1269:10: error: use
>> of undeclared identifier
>> 'memory_order_acquire'\n/usr/include/liburing.h:1320:2: error: use
>> of undeclared identifier 'memory_order_release'\n")
>
> Those missing identifiers should have been defined in stdatomic.h
> which is part of C11. You can check if that header exists under the
> default header search paths (which is listed by clang -E -Wp,-v -) and
> whether that file declares those enum constants. If so, you can
> further check whether there is any stdatomic.h elsewhere that shadows
> the standard one.

It is there:

  /usr/lib/llvm-14/lib/clang/14.0.6/include/stdatomic.h

in the search path:

  clang -E -Wp,-v -
  clang -cc1 version 14.0.6 based upon LLVM 14.0.6 default target x86_64-pc-linux-gnu
  ignoring nonexistent directory "/usr/bin/../lib/gcc/x86_64-linux-gnu/12/../../../../x86_64-linux-gnu/include"
  ignoring nonexistent directory "/include"
  #include "..." search starts here:
  #include <...> search starts here:
   /usr/lib/llvm-14/lib/clang/14.0.6/include
   /usr/local/include
   /usr/include/x86_64-linux-gnu
   /usr/include
  End of search list.

but not in the list above. Have we told clang not to include system
search paths in the bindgen invocation?

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro


  parent reply	other threads:[~2024-08-30 11:03 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-28  4:11 [PATCH RESEND v9 0/9] Add Rust build support, ARM PL011 device impl Manos Pitsidianakis
2024-08-28  4:11 ` [PATCH RESEND v9 1/9] Require meson version 1.5.0 Manos Pitsidianakis
2024-08-28 10:43   ` Alex Bennée
2024-08-28  4:11 ` [PATCH RESEND v9 2/9] build-sys: Add rust feature option Manos Pitsidianakis
2024-08-28 11:26   ` Alex Bennée
2024-08-28  4:11 ` [PATCH RESEND v9 3/9] configure, meson: detect Rust toolchain Manos Pitsidianakis
2024-08-28 12:11   ` Alex Bennée
2024-08-28 12:28   ` Daniel P. Berrangé
2024-09-04 11:03     ` Paolo Bonzini
2024-09-04 11:32       ` Paolo Bonzini
2024-08-28  4:11 ` [PATCH RESEND v9 4/9] rust: add bindgen step as a meson dependency Manos Pitsidianakis
2024-08-28  4:11 ` [PATCH RESEND v9 5/9] .gitattributes: add Rust diff and merge attributes Manos Pitsidianakis
2024-08-28  4:11 ` [PATCH RESEND v9 6/9] meson.build: add HAVE_GLIB_WITH_ALIGNED_ALLOC flag Manos Pitsidianakis
2024-08-28 13:15   ` Alex Bennée
2024-08-28  4:11 ` [PATCH RESEND v9 7/9] rust: add crate to expose bindings and interfaces Manos Pitsidianakis
2024-08-28 13:08   ` Alex Bennée
2024-08-30  1:19     ` Junjie Mao
2024-08-30  6:43       ` Manos Pitsidianakis
2024-08-30  8:50         ` Junjie Mao
2024-08-30 11:03       ` Alex Bennée [this message]
2024-08-31  8:25         ` Manos Pitsidianakis
2024-09-02  5:58           ` Junjie Mao
2024-09-06  7:56             ` Paolo Bonzini
2024-09-04 11:01   ` Paolo Bonzini
2024-09-05  3:05     ` Junjie Mao
2024-09-05  7:50     ` Manos Pitsidianakis
2024-08-28  4:11 ` [PATCH RESEND v9 8/9] rust: add utility procedural macro crate Manos Pitsidianakis
2024-08-28  4:11 ` [PATCH RESEND v9 9/9] rust: add PL011 device model Manos Pitsidianakis
2024-09-04 11:04   ` Paolo Bonzini
2024-09-06 10:41   ` Paolo Bonzini
2024-08-28 13:18 ` [PATCH RESEND v9 0/9] Add Rust build support, ARM PL011 device impl Alex Bennée
2024-09-04 11:31 ` Paolo Bonzini

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