From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B4F0FC43602 for ; Wed, 8 Jul 2026 07:58:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:Cc:To:From: Subject:Message-ID:References:Mime-Version:In-Reply-To:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=9u8vK7y24l4tdEbBKumAzRQyzhCWiiUx4/oaY05z2cM=; b=lcXRYNT1Bfa+hHzzkSXyDK0PNk guqD1B3zIE+4ZIXnLz0Vq2DJ4YSEMrfg+fh+0h4rBvX5WDyonS+/NxfhT2LcvoAlPUP4vhEeMoxP/ 6CDAjLiTefbPWlGlQzJHksH/wvIT3TmBKs15LmAlWlPmuWPyIAJnjRrF+ub05NtIZQd5xKa6XZpS1 6FWgdK+0S3kTczRIg34m8uMaxFGGxyAYzyOtyr0/bjNhYGDmMZ3FLiIYa9AgphIt2QmdhvZ2cnUh1 hd9Oh18LJVnM/Ns8kd/jSMNEvWvqYO9jy+i3zLRc8s8LQjVSjrwdTvHrje3tcRnuqVlyUfcHlJwYE CZSEumWg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1whNAH-0000000GYi3-16jC; Wed, 08 Jul 2026 07:57:53 +0000 Received: from mail-ej1-x649.google.com ([2a00:1450:4864:20::649]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1whNAE-0000000GYeb-1bsh for linux-arm-kernel@lists.infradead.org; Wed, 08 Jul 2026 07:57:52 +0000 Received: by mail-ej1-x649.google.com with SMTP id a640c23a62f3a-c15d4224f9dso13687166b.3 for ; Wed, 08 Jul 2026 00:57:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1783497468; x=1784102268; darn=lists.infradead.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=9u8vK7y24l4tdEbBKumAzRQyzhCWiiUx4/oaY05z2cM=; b=FVX7DrwlQH37UKArEAYliRy3APYB5TpjBgIRZvYMSbFppzSaZgcTnTkXg7juB/rziu QC+I5m+JXeMaTAM39UmmHFF+5QdaHPcteahoRDRbaY6IOSuBP9kPxF3DEUs6UEdqqLXS Th5puvS5MnJkG3//xnPLa9sTp4cfs0wFu2A9L3dmPHi5DcbBZSau7oFeElqvbso0OIfd 96GjO30q7AFUU4g0VN6fyIaf7Wgk278+uMhOZdjxiFjrLrwUfWIMVxVjLkzLcF45xx1t y1/Lf6swgaVlXH+yB9aJS3EomDnxWiom0k2pZca+mc3B1JtnzP5wa5dBpmarcXZBXCs7 CC5g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783497468; x=1784102268; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=9u8vK7y24l4tdEbBKumAzRQyzhCWiiUx4/oaY05z2cM=; b=V0sMMrEDVD9qy7MC2ftu+diIgQNCDkLh0qmRUYi0wKXLVBQAvU7Vl6zM00tP+ntYux 4rkVd0paJmwm3zractGTyJSThyLr+MLcRH59LQfDIqzO790FMiortw8LF7DQp/mf+pm8 lVmHYwM/pIKsq4t3o1YjZqvP0cd+l7z+E3y2JM+91qGqFEw5AGKSOg6Pe7JvAAJhK4b6 Em6NJxWMLp0nLLdOeChXa3G9y260b8bYeHc1UwJw/rLKfgs1T8AR12KNwHWqIxH4eyu5 jHqZht5zuSx0jqrejc6xDsb8mrjJ3p+lsV9MlJE6ROU8cP9CYUj17DziQOTzgDh52AVa 4NgQ== X-Gm-Message-State: AOJu0Yx7ONoZ+TdesfOeieIslqAQjj9j0G1rGdCBOFCUgKps7ZBoD4b7 g8HtSVx9mv4V0i7YSKXogZVtXGk03J2ThLwTupwGhU7R3Ljn1xnekh1ok8YT2l1j8k2eWG2z2By VklnJ3OWR+D0+tqz4Y48i1w== X-Received: from ejar8.prod.google.com ([2002:a17:906:3508:b0:c08:301b:2ab6]) (user=vdonnefort job=prod-delivery.src-stubby-dispatcher) by 2002:a17:907:9454:b0:c15:b9b6:6b17 with SMTP id a640c23a62f3a-c15cdec7abfmr74573266b.4.1783497467071; Wed, 08 Jul 2026 00:57:47 -0700 (PDT) Date: Wed, 8 Jul 2026 08:54:34 +0100 In-Reply-To: <20260708075435.47419-1-vdonnefort@google.com> Mime-Version: 1.0 References: <20260708075435.47419-1-vdonnefort@google.com> X-Mailer: git-send-email 2.55.0.795.g602f6c329a-goog Message-ID: <20260708075435.47419-4-vdonnefort@google.com> Subject: [PATCH v2 3/4] tracing/remotes: Add REMOTE_EVENT_CUSTOM_PRINTK() helper From: Vincent Donnefort To: maz@kernel.org, oliver.upton@linux.dev, joey.gouly@arm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, catalin.marinas@arm.com, will@kernel.org, rostedt@goodmis.org Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kernel-team@android.com, qperret@google.com, tabba@google.com, linux-trace-kernel@vger.kernel.org, Vincent Donnefort Content-Type: text/plain; charset="UTF-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260708_005750_805232_1D783109 X-CRM114-Status: GOOD ( 10.43 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The current REMOTE_EVENT() takes as a __printk argument a string format and a list of arguments, such as RE_STRUCT("foo=%d bar=%d", foo, bar). Add a REMOTE_EVENT_CUSTOM_PRINTK() where the __printk argument can be a function. This intends to support the creation of a "printk" event for the arm64 nVHE/pKVM hypervisor with a dynamic prototype and by extension a dynamic print format. Reviewed-by: Fuad Tabba Tested-by: Fuad Tabba Signed-off-by: Vincent Donnefort diff --git a/include/trace/define_remote_events.h b/include/trace/define_remote_events.h index 676e803dc144..4f4d58e37b84 100644 --- a/include/trace/define_remote_events.h +++ b/include/trace/define_remote_events.h @@ -35,17 +35,26 @@ do { \ #define RE_PRINTK(__args...) __args -#define REMOTE_EVENT(__name, __id, __struct, __printk) \ - REMOTE_EVENT_FORMAT(__name, __struct); \ +#define REMOTE_EVENT_PRINT_FUNC(__name, __printk) \ static void remote_event_print_##__name(void *evt, struct trace_seq *seq) \ { \ struct remote_event_format_##__name __maybe_unused *__entry = evt; \ trace_seq_puts(seq, #__name); \ - remote_printk(__printk); \ + __printk; \ } + +#define REMOTE_EVENT(__name, __id, __struct, __printk) \ + REMOTE_EVENT_FORMAT(__name, __struct); \ + REMOTE_EVENT_PRINT_FUNC(__name, remote_printk(__printk)) + +#define REMOTE_EVENT_CUSTOM_PRINTK(__name, __id, __struct, __printk) \ + REMOTE_EVENT_FORMAT(__name, __struct); \ + REMOTE_EVENT_PRINT_FUNC(__name, __printk) + #include REMOTE_EVENT_INCLUDE(REMOTE_EVENT_INCLUDE_FILE) #undef REMOTE_EVENT +#undef REMOTE_EVENT_CUSTOM_PRINTK #undef RE_PRINTK #undef re_field #define re_field(__type, __field) \ @@ -70,4 +79,8 @@ do { \ .print_fmt = remote_event_print_fmt_##__name, \ .print = remote_event_print_##__name, \ } + +#define REMOTE_EVENT_CUSTOM_PRINTK(__name, __id, __struct, __printk) \ + REMOTE_EVENT(__name, __id, RE_STRUCT(__struct), "Unknown") + #include REMOTE_EVENT_INCLUDE(REMOTE_EVENT_INCLUDE_FILE) -- 2.55.0.795.g602f6c329a-goog