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bh=u2xJSazmcgHDGqVbV332HtLx10BqSvaJsXJvtTjSebc=; b=EFjdMtED6ejasL/bEu65v9DRoZJfx2zPFosEpadFyZpyyLYpPYYyipCJVjJtmBC3tt+88q HfMm0TDGMzpx8DWkmHW3pKMjM+fz9SGIg3gkMQudQSnZtDdGquvskSXtR2zOzA6/JmQlVQ RDOxLxXjWauIJgX8h9JlfKyUEvzbYJs= X-MC-Unique: k_mXCjldMBuFutsH0zFm4w-1 From: Kevin Wolf To: qemu-block@nongnu.org Cc: kwolf@redhat.com, peter.maydell@linaro.org, qemu-devel@nongnu.org Subject: [PULL 04/38] coroutine: annotate coroutine_fn for libclang Date: Fri, 20 Jan 2023 13:25:59 +0100 Message-Id: <20230120122633.84983-5-kwolf@redhat.com> In-Reply-To: <20230120122633.84983-1-kwolf@redhat.com> References: <20230120122633.84983-1-kwolf@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 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=170.10.129.124; envelope-from=kwolf@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_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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: 1674217987265100001 Content-Type: text/plain; charset="utf-8" From: Alberto Faria Clang has a generic __annotate__ attribute that can be used by static analyzers to understand properties of functions and analyze the control flow. Furthermore, unlike TSA annotations, the __annotate__ attribute applies to function pointers as well. As a first step towards static analysis of coroutine_fn markers, attach the attribute to the marker when compiling with clang. Signed-off-by: Alberto Faria Signed-off-by: Paolo Bonzini Message-Id: <20221216110758.559947-2-pbonzini@redhat.com> Reviewed-by: Kevin Wolf Signed-off-by: Kevin Wolf --- include/qemu/coroutine.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/qemu/coroutine.h b/include/qemu/coroutine.h index 89650a2d7f..b0c97f6fb7 100644 --- a/include/qemu/coroutine.h +++ b/include/qemu/coroutine.h @@ -42,7 +42,11 @@ * .... * } */ +#ifdef __clang__ +#define coroutine_fn __attribute__((__annotate__("coroutine_fn"))) +#else #define coroutine_fn +#endif =20 typedef struct Coroutine Coroutine; =20 --=20 2.38.1