From nobody Mon Feb 9 09:28:53 2026 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 E3AA6EB64DD for ; Tue, 11 Jul 2023 16:09:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233076AbjGKQJF (ORCPT ); Tue, 11 Jul 2023 12:09:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43094 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232615AbjGKQJA (ORCPT ); Tue, 11 Jul 2023 12:09:00 -0400 Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D5CE5E5C for ; Tue, 11 Jul 2023 09:08:58 -0700 (PDT) Received: from localhost (mailhub3.si.c-s.fr [192.168.12.233]) by localhost (Postfix) with ESMTP id 4R0m5F74D4z9sFD; Tue, 11 Jul 2023 18:08:49 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id y-Uvf8up4Fog; Tue, 11 Jul 2023 18:08:49 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4R0m5C2xzRz9sFC; Tue, 11 Jul 2023 18:08:47 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 616888B763; Tue, 11 Jul 2023 18:08:47 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id vp_5QqFmxrez; Tue, 11 Jul 2023 18:08:47 +0200 (CEST) Received: from PO20335.IDSI0.si.c-s.fr (unknown [192.168.233.184]) by messagerie.si.c-s.fr (Postfix) with ESMTP id CBF258B779; Tue, 11 Jul 2023 18:08:46 +0200 (CEST) Received: from PO20335.IDSI0.si.c-s.fr (localhost [127.0.0.1]) by PO20335.IDSI0.si.c-s.fr (8.17.1/8.16.1) with ESMTPS id 36BG8kl83696852 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Tue, 11 Jul 2023 18:08:46 +0200 Received: (from chleroy@localhost) by PO20335.IDSI0.si.c-s.fr (8.17.1/8.17.1/Submit) id 36BG8kP03696851; Tue, 11 Jul 2023 18:08:46 +0200 X-Authentication-Warning: PO20335.IDSI0.si.c-s.fr: chleroy set sender to christophe.leroy@csgroup.eu using -f From: Christophe Leroy To: Michael Ellerman , Nicholas Piggin , Josh Poimboeuf , Peter Zijlstra , Sathvika Vasireddy , Naveen N Rao Cc: Christophe Leroy , linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v4 13/15] objtool: Prepare noreturns.h for more architectures Date: Tue, 11 Jul 2023 18:08:39 +0200 Message-ID: X-Mailer: git-send-email 2.41.0 In-Reply-To: References: MIME-Version: 1.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1689091706; l=2884; i=christophe.leroy@csgroup.eu; s=20211009; h=from:subject:message-id; bh=VP6S87HnnUqkX0M6jjPWdL69C8RBj2wF1wd8aPIq2Vc=; b=byCCiss6/HehxbWPdM4D62jCIc16bp8efzQXnF+3YAQ/r9qOmO417uSIaMD7StSNPMTNynwMj RXYM24BCDEHBGDv7s4rDb7oinOUcQ0O8VXWPQ2xPBsvC+1v4Zm7vVtl X-Developer-Key: i=christophe.leroy@csgroup.eu; a=ed25519; pk=HIzTzUj91asvincQGOFx6+ZF5AoUuP9GdOtQChs7Mm0= Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" noreturns.h is a mix of x86 specific functions and more generic core functions. In preparation of inclusion of powerpc, split x86 functions out of noreturns.h into arch/noreturns.h Signed-off-by: Christophe Leroy --- .../objtool/arch/x86/include/arch/noreturns.h | 20 +++++++++++++++++++ tools/objtool/noreturns.h | 14 ++----------- 2 files changed, 22 insertions(+), 12 deletions(-) create mode 100644 tools/objtool/arch/x86/include/arch/noreturns.h diff --git a/tools/objtool/arch/x86/include/arch/noreturns.h b/tools/objtoo= l/arch/x86/include/arch/noreturns.h new file mode 100644 index 000000000000..a4262aff3917 --- /dev/null +++ b/tools/objtool/arch/x86/include/arch/noreturns.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +/* + * This is a (sorted!) list of all known __noreturn functions in arch/x86. + * It's needed for objtool to properly reverse-engineer the control flow g= raph. + * + * Yes, this is unfortunate. A better solution is in the works. + */ +NORETURN(cpu_bringup_and_idle) +NORETURN(ex_handler_msr_mce) +NORETURN(hlt_play_dead) +NORETURN(hv_ghcb_terminate) +NORETURN(machine_real_restart) +NORETURN(rewind_stack_and_make_dead) +NORETURN(sev_es_terminate) +NORETURN(snp_abort) +NORETURN(x86_64_start_kernel) +NORETURN(x86_64_start_reservations) +NORETURN(xen_cpu_bringup_again) +NORETURN(xen_start_kernel) diff --git a/tools/objtool/noreturns.h b/tools/objtool/noreturns.h index e45c7cb1d5bc..b5e0f078dbb6 100644 --- a/tools/objtool/noreturns.h +++ b/tools/objtool/noreturns.h @@ -1,5 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ =20 +#include + /* * This is a (sorted!) list of all known __noreturn functions in the kerne= l. * It's needed for objtool to properly reverse-engineer the control flow g= raph. @@ -14,32 +16,20 @@ NORETURN(__stack_chk_fail) NORETURN(__ubsan_handle_builtin_unreachable) NORETURN(arch_call_rest_init) NORETURN(arch_cpu_idle_dead) -NORETURN(cpu_bringup_and_idle) NORETURN(cpu_startup_entry) NORETURN(do_exit) NORETURN(do_group_exit) NORETURN(do_task_dead) -NORETURN(ex_handler_msr_mce) NORETURN(fortify_panic) -NORETURN(hlt_play_dead) -NORETURN(hv_ghcb_terminate) NORETURN(kthread_complete_and_exit) NORETURN(kthread_exit) NORETURN(kunit_try_catch_throw) -NORETURN(machine_real_restart) NORETURN(make_task_dead) NORETURN(mpt_halt_firmware) NORETURN(nmi_panic_self_stop) NORETURN(panic) NORETURN(panic_smp_self_stop) NORETURN(rest_init) -NORETURN(rewind_stack_and_make_dead) -NORETURN(sev_es_terminate) -NORETURN(snp_abort) NORETURN(start_kernel) NORETURN(stop_this_cpu) NORETURN(usercopy_abort) -NORETURN(x86_64_start_kernel) -NORETURN(x86_64_start_reservations) -NORETURN(xen_cpu_bringup_again) -NORETURN(xen_start_kernel) --=20 2.41.0