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Fri, 22 Aug 2025 05:27:23 -0700 (PDT) X-Google-Smtp-Source: AGHT+IECy9Ss3B9WS7pFdKUWEp7JuYNsQQE8/2u4eSQDjWuq0mLAXriV23JMsaMfVA0WlXc4i0v1tQ== X-Received: by 2002:a05:600c:4590:b0:459:dfde:3324 with SMTP id 5b1f17b1804b1-45b517d2da6mr21265775e9.29.1755865642717; Fri, 22 Aug 2025 05:27:22 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: tanishdesai37@gmail.com, stefanha@redhat.com, berrange@redhat.com, mads@ynddal.dk Subject: [PATCH 10/14] tracetool/simple: add Rust support Date: Fri, 22 Aug 2025 14:26:51 +0200 Message-ID: <20250822122655.1353197-11-pbonzini@redhat.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250822122655.1353197-1-pbonzini@redhat.com> References: <20250822122655.1353197-1-pbonzini@redhat.com> MIME-Version: 1.0 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=170.10.133.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.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, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_PASS=-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 @redhat.com) X-ZM-MESSAGEID: 1755871084458124100 Content-Type: text/plain; charset="utf-8" From: Tanish Desai Signed-off-by: Paolo Bonzini --- scripts/tracetool/__init__.py | 2 +- scripts/tracetool/backend/simple.py | 7 +++++ tests/tracetool/simple.rs | 41 +++++++++++++++++++++++++++++ tests/tracetool/tracetool-test.py | 2 ++ 4 files changed, 51 insertions(+), 1 deletion(-) create mode 100644 tests/tracetool/simple.rs diff --git a/scripts/tracetool/__init__.py b/scripts/tracetool/__init__.py index 0b8ec707332..7542757799e 100644 --- a/scripts/tracetool/__init__.py +++ b/scripts/tracetool/__init__.py @@ -336,7 +336,7 @@ def rust_call_extern(self): def rust_cast(name, type_): if type_ =3D=3D "const char *": return f"_{name}.as_ptr()" - return "_{name}" + return f"_{name}" =20 return ", ".join((rust_cast(name, type_) for type_, name in self._= args)) =20 diff --git a/scripts/tracetool/backend/simple.py b/scripts/tracetool/backen= d/simple.py index a8afc977a20..7acbd6cc69d 100644 --- a/scripts/tracetool/backend/simple.py +++ b/scripts/tracetool/backend/simple.py @@ -98,3 +98,10 @@ def generate_c(event, group): out(' trace_record_finish(&rec);', '}', '') + +def generate_rs(event, group): + out(' extern "C" { fn _simple_%(api)s(%(rust_args)s); }', + ' unsafe { _simple_%(api)s(%(args)s); }', + api=3Devent.api(), + rust_args=3Devent.args.rust_decl_extern(), + args=3Devent.args.rust_call_extern()) diff --git a/tests/tracetool/simple.rs b/tests/tracetool/simple.rs new file mode 100644 index 00000000000..895096088dc --- /dev/null +++ b/tests/tracetool/simple.rs @@ -0,0 +1,41 @@ +// This file is autogenerated by tracetool, do not edit. + +#[allow(unused_imports)] +use std::ffi::c_char; +#[allow(unused_imports)] +use qemu_api::bindings; + +#[inline(always)] +fn trace_event_get_state_dynamic_by_id(_id: u16) -> bool { + unsafe { (trace_events_enabled_count !=3D 0) && (_id !=3D 0) } +} + +extern "C" { + static mut trace_events_enabled_count: u32; +} +extern "C" { + static mut _TRACE_TEST_BLAH_DSTATE: u16; + static mut _TRACE_TEST_WIBBLE_DSTATE: u16; +} +const _TRACE_TEST_BLAH_ENABLED: bool =3D true; +const _TRACE_TEST_WIBBLE_ENABLED: bool =3D true; + +#[inline(always)] +#[allow(dead_code)] +pub fn trace_test_blah(_context: *mut (), _filename: &std::ffi::CStr) +{ + if trace_event_get_state_dynamic_by_id(unsafe { _TRACE_TEST_BLAH_DSTAT= E}) { + extern "C" { fn _simple_trace_test_blah(_context: *mut (), _filena= me: *const std::ffi::c_char); } + unsafe { _simple_trace_test_blah(_context, _filename.as_ptr()); } + } +} + +#[inline(always)] +#[allow(dead_code)] +pub fn trace_test_wibble(_context: *mut (), _value: std::ffi::c_int) +{ + if trace_event_get_state_dynamic_by_id(unsafe { _TRACE_TEST_WIBBLE_DST= ATE}) { + extern "C" { fn _simple_trace_test_wibble(_context: *mut (), _valu= e: std::ffi::c_int); } + unsafe { _simple_trace_test_wibble(_context, _value); } + } +} diff --git a/tests/tracetool/tracetool-test.py b/tests/tracetool/tracetool-= test.py index a420597fc48..ad7dd667288 100755 --- a/tests/tracetool/tracetool-test.py +++ b/tests/tracetool/tracetool-test.py @@ -13,6 +13,8 @@ def get_formats(backend): "c", "h", ] + if backend in {"simple"}: + formats +=3D ["rs"] if backend =3D=3D "dtrace": formats +=3D [ "d", --=20 2.50.1