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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 43208C43334 for ; Fri, 15 Jul 2022 06:11:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230390AbiGOGLa (ORCPT ); Fri, 15 Jul 2022 02:11:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54552 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230320AbiGOGLS (ORCPT ); Fri, 15 Jul 2022 02:11:18 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EB5F64E856 for ; Thu, 14 Jul 2022 23:11:16 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id o135-20020a25738d000000b0066f58989d75so3316367ybc.13 for ; Thu, 14 Jul 2022 23:11:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=SVXMXCA9EUcm/U2NL9bFju/llGCppObF5hU8u8qx8a0=; b=KmS2wN930EG2IxdxCnUBJhmowSVq6hfGSEB+wly2itZQ8X0cteyEWcAfiVvdqRbU42 yYenX7Dwez5VU+bNvMLNDm0ctaQ8BCMSiSb//Vn6c9oX9+SeTSiSZ36Uppd4JnBxxR78 znl5dMF7OcbOnChFRV8zbNqv7wgOjwrgyxDU7Zpy0l4ynJg4HhJ/jccQUGXF4i2S8cNB pmV7nKb0B8X7Ula4KBpHNLEaM8aGRY3TVfgMp+m21+vceYD9GUOqJg6gPXDD2fptehJA kKrsWzYrZSbpOf11gT0kv72fBfdnYXt/tvhluVpxYNQ4o6shoPvFr2NEyL983QhMwnAC Jx5w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=SVXMXCA9EUcm/U2NL9bFju/llGCppObF5hU8u8qx8a0=; b=4/+wK4mkk0pTf77hksjgVczV+fy2MSSHKuwlX+F+TWlWiU6qqJu7RYwgSGKoDV0pEv R4lQ1r20Jox7lDh6Mv1CczoFi6nD/kuu7Kw8GnX5gT5IFXwulrpOLCLLbARAac0MgUaj MKGBgTmID8QFIhvbe+exmxq/IOH7huDqbzbzUVx5qR3Kz6HaWv5y72mg1D6RIx5+wl4u wtuGSsbI7jh98DRP0Lpmxi9t/bwfy5p15SKGNQwrGiM8UXGyPs535zF4Q7aRqwqzsNmy y7tvpJ+BcoJwBoFi1uOmYYHVyaSUegZnotSzxb8KIESInEWRoLwldlpPTu6LtASxtZpI bbYw== X-Gm-Message-State: AJIora8hcJlOBfFubVVIKApQJ1jjd4xwkBH3YzZ/3o8M1BmsqcAr5NBI 75r5g4pnVcuve8hL/GrZJnFBHGZmJujMaj9vfQ== X-Google-Smtp-Source: AGRyM1s7bBaJTn0X9XWOnvyD6RIVfSqUuJ1lmnLuGoAg+cY+w4t8dDFpOLAfqJACW8rVgQZNFvvWoSacW1dpR4y6cQ== X-Received: from kaleshsingh.mtv.corp.google.com ([2620:15c:211:200:f010:455b:62ce:19e]) (user=kaleshsingh job=sendgmr) by 2002:a81:6fc3:0:b0:31c:8c75:3eb8 with SMTP id k186-20020a816fc3000000b0031c8c753eb8mr14112217ywc.225.1657865476241; Thu, 14 Jul 2022 23:11:16 -0700 (PDT) Date: Thu, 14 Jul 2022 23:10:15 -0700 In-Reply-To: <20220715061027.1612149-1-kaleshsingh@google.com> Message-Id: <20220715061027.1612149-7-kaleshsingh@google.com> Mime-Version: 1.0 References: <20220715061027.1612149-1-kaleshsingh@google.com> X-Mailer: git-send-email 2.37.0.170.g444d1eabd0-goog Subject: [PATCH v4 06/18] arm64: stacktrace: Add description of stacktrace/common.h From: Kalesh Singh To: maz@kernel.org, mark.rutland@arm.com, broonie@kernel.org, madvenka@linux.microsoft.com Cc: will@kernel.org, qperret@google.com, tabba@google.com, kaleshsingh@google.com, james.morse@arm.com, alexandru.elisei@arm.com, suzuki.poulose@arm.com, catalin.marinas@arm.com, andreyknvl@gmail.com, russell.king@oracle.com, vincenzo.frascino@arm.com, mhiramat@kernel.org, ast@kernel.org, drjones@redhat.com, wangkefeng.wang@huawei.com, elver@google.com, keirf@google.com, yuzenghui@huawei.com, ardb@kernel.org, oupton@google.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org, android-mm@google.com, kernel-team@android.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add brief description on how to use stacktrace/common.h to implement a stack unwinder. Signed-off-by: Kalesh Singh --- arch/arm64/include/asm/stacktrace/common.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/include/asm/stacktrace/common.h b/arch/arm64/include/asm/stacktrace/common.h index f86efe71479d..b362086f4c70 100644 --- a/arch/arm64/include/asm/stacktrace/common.h +++ b/arch/arm64/include/asm/stacktrace/common.h @@ -2,6 +2,14 @@ /* * Common arm64 stack unwinder code. * + * To implement a new arm64 stack unwinder: + * 1) Include this header + * + * 2) Provide implementations for the following functions: + * - on_overflow_stack() + * - on_accessible_stack() + * - unwind_next() + * * Copyright (C) 2012 ARM Ltd. */ #ifndef __ASM_STACKTRACE_COMMON_H -- 2.37.0.170.g444d1eabd0-goog