From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f73.google.com (mail-ej1-f73.google.com [209.85.218.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4A02E3F825E for ; Wed, 8 Jul 2026 07:57:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783497479; cv=none; b=WOo9myBPV19AhWOMd+hmEzySlCkz/YX+dNHivlOItaWKMuw1Cv5SRx1fBozzDX9nKuKkYYjimYAZNaQLV51CjLSB6dB/mOJm/+ljhL4WyVFqirzc2CzagTuFHteDw4LXOn5r80l4ge/xiu9LA110NPlyYRaA2nB/j7jqPK0bJuA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783497479; c=relaxed/simple; bh=hZtsxisaPTY5ToDb2Nu0+RQ+BpvWxp67/nOUGgZNJ/c=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=Ct78hHu+5KFMgldVNhldK5a7T8JIFWFvqRbSW1GYyTVOxNqwMirazibVrpNPdEqGdzrNzrzRGvayPxurLItGuy8yI7TGcWnnLhPuwesOxOt4B6VNYMxPmtJPL81p8Lii7gFV1NUrUwrFRtQ47o10b0KKreqeoTnSwdJsnp9cEAU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--vdonnefort.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=lma3smHT; arc=none smtp.client-ip=209.85.218.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--vdonnefort.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="lma3smHT" Received: by mail-ej1-f73.google.com with SMTP id a640c23a62f3a-c12823d7822so35651666b.0 for ; Wed, 08 Jul 2026 00:57:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1783497468; x=1784102268; darn=vger.kernel.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=lma3smHTyd8ra5q5Q+/i49sPp+cNmQAbhL80w2O9tE4PlKtgb22EqWjwpYelCuV1hf 0Ss/17SmHarkzN71PaiRAMXmI4HaW3IsNwbGnj7OpFPR23xwXtPf6ZpPfjbd1JFjNyV/ nE77zw45qEFXBLFIkBAZST+mmyhOfwLyMyTyCofz2qo1wQqyUpXU4z3O3qppt0SMCkfA nbOdvHNJ5BPEJjy1y4WXvF7ZUJLysWsvd5JW9+gCqp1nXpieCDRkTp06fQnpamH9U+30 uBQlYo9ZZDrrxsqdCVofaKVBSiIKU1K8qOMgOzQ1NWTTKUHuDvoMs7XxO/uA/w67BVjF 9f/g== 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=HVW2ud7+cloAvac1yIRTTuPDqLxykAXrbSxqIEuVKL7z4ZGscB1t2Ucg+K+KYOzpcK jvZojHEdlNe/Q1H95chSdRw+40Ri2TF+25HgMW5p+qERV0cqMT3MdyPb//IAGCjXSWmi 6ZLeaVKNzoSphClWEa3J+Qf+o8HPi4NEpApOQsvzaojbMcpesd/zkOaZOZTRAcoYphUv DRntTjiPNeLhev/hz86ZFu90GbQ0z4CNpWCU2883qcsUjhrkn8Ng9UWOTQurrn/ui+Eq HTcOZON9yTNNnMA1L9RUf7jPY4r9cBm3JyJXfhnTfIlHkChRDl5FwMSLnLFIHqpwDe5u 0hJQ== X-Forwarded-Encrypted: i=1; AHgh+RpmbGoI7eMAzb1wIVt9wDdETFHLR2HDH9mRd1SrVvMoTLP3Inc3bIRgeJQ1V38g9B7wF2RgeDpjx0WZOvJGD4BZNJI=@vger.kernel.org X-Gm-Message-State: AOJu0Yx07kZ9uYl48RmRLihRActx669MpX0eX0TQ2L5FdEfQgv9RubWZ H7wBESUbJinFgvQjh3nvkHwilViwdTpa26qFELAtfm4fLRgFwXkQBaebVRjh62SFm0D8r98rN2z QhSt6uM26DtEuyLD4vSggYw== 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> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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" 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