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 A1AFFC0502C for ; Thu, 1 Sep 2022 11:49:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232864AbiIALtd (ORCPT ); Thu, 1 Sep 2022 07:49:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233125AbiIALtA (ORCPT ); Thu, 1 Sep 2022 07:49:00 -0400 Received: from pegase2.c-s.fr (pegase2.c-s.fr [93.17.235.10]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DA83C13A7E4 for ; Thu, 1 Sep 2022 04:48:59 -0700 (PDT) Received: from localhost (mailhub3.si.c-s.fr [172.26.127.67]) by localhost (Postfix) with ESMTP id 4MJK7s1Bkmz9sp8; Thu, 1 Sep 2022 13:48:57 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from pegase2.c-s.fr ([172.26.127.65]) by localhost (pegase2.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zENmgUcEPJFI; Thu, 1 Sep 2022 13:48:57 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase2.c-s.fr (Postfix) with ESMTP id 4MJK7r70wRz9sp7; Thu, 1 Sep 2022 13:48:56 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id DD8BF8B780; Thu, 1 Sep 2022 13:48:56 +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 TIenZCy2TllG; Thu, 1 Sep 2022 13:48:56 +0200 (CEST) Received: from PO20335.IDSI0.si.c-s.fr (unknown [192.168.232.131]) by messagerie.si.c-s.fr (Postfix) with ESMTP id A3AA18B764; Thu, 1 Sep 2022 13:48:56 +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 281BmkoS1768874 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Thu, 1 Sep 2022 13:48:46 +0200 Received: (from chleroy@localhost) by PO20335.IDSI0.si.c-s.fr (8.17.1/8.17.1/Submit) id 281BmgEQ1768870; Thu, 1 Sep 2022 13:48:42 +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 , sv@linux.ibm.com, bgray@linux.ibm.com, agust@denx.de, jpoimboe@kernel.org, peterz@infradead.org, jbaron@akamai.com, rostedt@goodmis.org, ardb@kernel.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com Cc: Christophe Leroy , linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, x86@kernel.org, chenzhongjin@huawei.com Subject: [PATCH v3 0/6] Implement inline static calls on PPC32 - v3 Date: Thu, 1 Sep 2022 13:48:19 +0200 Message-Id: X-Mailer: git-send-email 2.37.1 MIME-Version: 1.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1662032901; l=1870; s=20211009; h=from:subject:message-id; bh=GAgDRyI5Iv4v6NxY6e0q7Pc95r863rGYKNlkTCV4Iz4=; b=xIoTdQATVlMxl+qo3b8kowa0Ce1JnaXHUKOLiVoHMjZhqAH98kCIcW/VrJESaDkHweU7OcGCCuQ/ ZHZ5QlLlAZhSMhFyRCUfG3ew9RKhh2g10uAM5ujyxo71l437f4Kv X-Developer-Key: i=christophe.leroy@csgroup.eu; a=ed25519; pk=HIzTzUj91asvincQGOFx6+ZF5AoUuP9GdOtQChs7Mm0= Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series applies on top of the series v2 "objtool: Enable and implement --mcount option on powerpc" [1] A few modifications are done to core parts to enable powerpc implementation: - R_X86_64_PC32 is abstracted to R_REL32 so that it can then be redefined as R_PPC_REL32. - A call to static_call_init() is added to start_kernel() to avoid every architecture to have to call it - Trampoline address is provided to arch_static_call_transform() even when setting a site to fallback on a call to the trampoline when the target is too far. [1] https://lore.kernel.org/all/20220829055223.24767-8-sv@linux.ibm.com/T/ This version of the series includes a preliminary patch (patch 1) that should be squashed into Sathvika's series. Christophe Leroy (6): Fixup for "objtool/powerpc: Add --mcount specific implementation" objtool: Add architecture specific R_REL32 macro init: Call static_call_init() from start_kernel() static_call_inline: Provide trampoline address when updating sites powerpc: Prepare arch_static_call_transform() for supporting inline static calls powerpc/static_call: Implement inline static calls arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/static_call.h | 2 + arch/powerpc/kernel/static_call.c | 58 ++++++++++++++----- arch/x86/kernel/static_call.c | 2 +- init/main.c | 1 + kernel/static_call_inline.c | 2 +- tools/objtool/arch/powerpc/decode.c | 39 +++++++++---- tools/objtool/arch/powerpc/include/arch/elf.h | 1 + tools/objtool/arch/x86/include/arch/elf.h | 1 + tools/objtool/check.c | 10 ++-- tools/objtool/orc_gen.c | 2 +- 11 files changed, 85 insertions(+), 34 deletions(-) -- 2.37.1