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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 56F27C77B73 for ; Mon, 1 May 2023 12:43:07 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4Q92td686yz3fPS for ; Mon, 1 May 2023 22:43:05 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.a=rsa-sha256 header.s=google header.b=hODYeDeY; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=chromium.org (client-ip=2a00:1450:4864:20::52d; helo=mail-ed1-x52d.google.com; envelope-from=ribalda@chromium.org; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.a=rsa-sha256 header.s=google header.b=hODYeDeY; dkim-atps=neutral Received: from mail-ed1-x52d.google.com (mail-ed1-x52d.google.com [IPv6:2a00:1450:4864:20::52d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4Q92p13Tv3z2xKN for ; Mon, 1 May 2023 22:39:05 +1000 (AEST) Received: by mail-ed1-x52d.google.com with SMTP id 4fb4d7f45d1cf-50bc4d96e14so8630210a12.1 for ; Mon, 01 May 2023 05:39:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1682944742; x=1685536742; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=vsOOlRTCOjL3abNi/3ZUSQqB4+vgvV69cdyU9ee1C48=; b=hODYeDeYg6APhZAviVEDv24zkkV5PSyD9YF80bCIKMgiHcDDsd8y08C3drl6nvnGJD IlJxYRT/wEBGX7nbEciydDBBtR5sxWJSS+Q1JOTL+EYkrNHQvWMsz4+2JhTAsCU5cMFe Ea+MOxsYngr/dEQhvm3KkMoPZiJyiwADd2JrY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1682944742; x=1685536742; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=vsOOlRTCOjL3abNi/3ZUSQqB4+vgvV69cdyU9ee1C48=; b=cp23S4FE9lEKsinPtns3NJHIFEPIiOAaJ4G9J0UTmBlZXc6dOdGpFSzl4G9yTy4/o7 CRnWArCBGqmtxmWD9rmI8tD71ubtZypPydPEoZoIQ0zEwkP+G5GLy0kvPUdD9HgMSnNZ z1lXYYSbSiELRMNxqPNgdPR6WKkLXg1Ok8ythggofXnHvETNbtO/VU7FYEx2ctQR9e9A GZs8nhLE23GrghMZIjoWofQxi7ctj6SvCfqn/3CMQwJzaauUBW7XVvdZBKAhtts+4p00 r4YHP6+pP46C2YijmYzxTma1UNXgkPOIQyrxU9OVJc0wT3LnW1mPxM1gbSNjZ4Ks4zSO n0eA== X-Gm-Message-State: AC+VfDz47hXhhexLaLojy9VUrsaHdEkB82k5xuP9yhIBh+6OkC6qtIh8 PkcGyDUVlbI3xEVwpFr7WiVDAw== X-Google-Smtp-Source: ACHHUZ4EUorB+1FZYBv1RP6+ov+r8A+Pc1H1dxULnrAhwBqWHXQ9LjOP3Ez/dznJWtTpBeBKUxYLqg== X-Received: by 2002:a05:6402:27c8:b0:504:77ed:5a33 with SMTP id c8-20020a05640227c800b0050477ed5a33mr5864584ede.8.1682944742259; Mon, 01 May 2023 05:39:02 -0700 (PDT) Received: from alco.roam.corp.google.com ([2620:0:1059:10:c573:159e:712e:688b]) by smtp.gmail.com with ESMTPSA id c8-20020aa7c988000000b0050bcbb5708asm146772edt.35.2023.05.01.05.39.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 May 2023 05:39:02 -0700 (PDT) From: Ricardo Ribalda Date: Mon, 01 May 2023 14:38:22 +0200 Subject: [PATCH v6 4/4] risc/purgatory: Add linker script MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20230321-kexec_clang16-v6-4-a2255e81ab45@chromium.org> References: <20230321-kexec_clang16-v6-0-a2255e81ab45@chromium.org> In-Reply-To: <20230321-kexec_clang16-v6-0-a2255e81ab45@chromium.org> To: Eric Biederman , Philipp Rudo , Dave Young , Andrew Morton , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Nathan Chancellor , Tom Rix , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Paul Walmsley , Palmer Dabbelt , Albert Ou X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1219; i=ribalda@chromium.org; h=from:subject:message-id; bh=ECbK3ORJb/ox8qpp2VcGabf7Ou2PzFFDokGI84nq/PQ=; b=owEBbQKS/ZANAwAKAdE30T7POsSIAcsmYgBkT7Lc5MTx2hMC4Re9phVjZPNed9BIxos1Pxii0 61fGiCxDbqJAjMEAAEKAB0WIQREDzjr+/4oCDLSsx7RN9E+zzrEiAUCZE+y3AAKCRDRN9E+zzrE iJuYD/9j2b1eDvjy+uQCumtGC2Jn+H/Md0JWPsxPb46aNyMDJJYtpnBOkQyLCIR1Ro6iTpnQQLM +8uN/ou0X4CF9cfN+g6f5JwkPoQfQcP+jYNP8HE3vvJyaw+gY8gFKrsolGYojIu5+7EZscjeM+x 7hCRkxslbxzkKo8bCXJPNM5bL+TS+8voKLtJw5vxmDtH71krf0z6Gp38OUM1qbruri9kSi75MmP pPIc503fFiicjySfDDJ804XtSoK2FjXUVn96C+XtJdu8JE5WpzayNi5G1CCxtOHmymMyPL11Nyb +Y3kXDpLRgX+07NcFuZOiO/0ThN8bGM98On1cBYfS5PV2bqYo2Cv6+KOCjnObJd8T8zLrIWY31E dkIZGehfJGieHtPMQYd0Up0Q7UFloD9EOCUk3YXQjbVL5YW62U0ajBT0UqSNiyO8Fk5AdOGQnDv M1oDH7eB6zhw04nOc8MvRcEL1vb70bgueckn6cp6u0ViYD7VRwHLkKiDx9y2wl93EfhhVpu9EpQ 108x63OJbcTsVjOEtHREb8lzuERyPHJsPH5o49C5N+yZd7HKY8dMY7vi4/kdo4rqsrCdLSOYIRN nVm4G0/Z6eWsohGrZwA5weUUpMcYwEHd+mCMobjyQ8WPRg/nBapyYtxdaEgYMK3As9R4j0j3G0s Q5pwBDSsFyR/N1Q== X-Developer-Key: i=ribalda@chromium.org; a=openpgp; fpr=9EC3BB66E2FC129A6F90B39556A0D81F9F782DA9 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nick Desaulniers , Baoquan He , Philipp Rudo , llvm@lists.linux.dev, Ross Zwisler , linux-kernel@vger.kernel.org, Steven Rostedt , stable@vger.kernel.org, Simon Horman , Ricardo Ribalda , linux-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, kexec@lists.infradead.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" If PGO is enabled, the purgatory ends up with multiple .text sections. This is not supported by kexec and crashes the system. Cc: stable@vger.kernel.org Fixes: 930457057abe ("kernel/kexec_file.c: split up __kexec_load_puragory") Signed-off-by: Ricardo Ribalda --- arch/riscv/purgatory/Makefile | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/riscv/purgatory/Makefile b/arch/riscv/purgatory/Makefile index 5730797a6b40..cf3a44121a90 100644 --- a/arch/riscv/purgatory/Makefile +++ b/arch/riscv/purgatory/Makefile @@ -35,6 +35,11 @@ CFLAGS_sha256.o := -D__DISABLE_EXPORTS CFLAGS_string.o := -D__DISABLE_EXPORTS CFLAGS_ctype.o := -D__DISABLE_EXPORTS +# When profile optimization is enabled, llvm emits two different overlapping +# text sections, which is not supported by kexec. Remove profile optimization +# flags. +KBUILD_CFLAGS := $(filter-out -fprofile-sample-use=% -fprofile-use=%,$(KBUILD_CFLAGS)) + # When linking purgatory.ro with -r unresolved symbols are not checked, # also link a purgatory.chk binary without -r to check for unresolved symbols. PURGATORY_LDFLAGS := -e purgatory_start -z nodefaultlib -- 2.40.1.495.gc816e09b53d-goog