Message ID | 20231129130701.27744-1-yangtiezhu@loongson.cn |
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[2620:137:e000::3:7]) by mx.google.com with ESMTPS id l16-20020a170903245000b001d005bd17a1si2871834pls.484.2023.11.29.05.07.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Nov 2023 05:07:13 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) client-ip=2620:137:e000::3:7; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by snail.vger.email (Postfix) with ESMTP id 8AA018030B8C; Wed, 29 Nov 2023 05:07:11 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at snail.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232908AbjK2NHC (ORCPT <rfc822;toshivichauhan@gmail.com> + 99 others); Wed, 29 Nov 2023 08:07:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54206 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232447AbjK2NHC (ORCPT <rfc822;linux-kernel@vger.kernel.org>); Wed, 29 Nov 2023 08:07:02 -0500 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 9051E10DD for <linux-kernel@vger.kernel.org>; Wed, 29 Nov 2023 05:07:06 -0800 (PST) Received: from loongson.cn (unknown [113.200.148.30]) by gateway (Coremail) with SMTP id _____8BxbOp3N2dlWqc9AA--.29642S3; Wed, 29 Nov 2023 21:07:03 +0800 (CST) Received: from linux.localdomain (unknown [113.200.148.30]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Axzy91N2dlVtNPAA--.45987S2; Wed, 29 Nov 2023 21:07:01 +0800 (CST) From: Tiezhu Yang <yangtiezhu@loongson.cn> To: Josh Poimboeuf <jpoimboe@kernel.org>, Peter Zijlstra <peterz@infradead.org>, Huacai Chen <chenhuacai@kernel.org> Cc: loongarch@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v5 0/8] Add objtool and orc support for LoongArch Date: Wed, 29 Nov 2023 21:06:53 +0800 Message-ID: <20231129130701.27744-1-yangtiezhu@loongson.cn> X-Mailer: git-send-email 2.42.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: AQAAf8Axzy91N2dlVtNPAA--.45987S2 X-CM-SenderInfo: p1dqw3xlh2x3gn0dqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBj93XoWxWw17Gr1UWw45ZFWrKFW5XFc_yoWrAry7pF ZrZrykGF4UWr93Aw1Dta4UurWDJan7Gr12g3Wavry8CFW2qr1DArsakFyDXFnFqa1rGFy0 gF1rGw4aqa1jqabCm3ZEXasCq-sJn29KB7ZKAUJUUUU8529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUkFb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r106r15M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Jr0_JF4l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Jr0_Gr1l84ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVCY1x0267AK xVW8Jr0_Cr1UM2AIxVAIcxkEcVAq07x20xvEncxIr21l57IF6xkI12xvs2x26I8E6xACxx 1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r106r15McIj6I8E87Iv 67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41l42xK82IYc2 Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s02 6x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r126r1DMIIYrxkI7VAKI48JMIIF0x vE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF0xvE 42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6x kF7I0E14v26r1j6r4UYxBIdaVFxhVjvjDU0xZFpf9x07URa0PUUUUU= X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Wed, 29 Nov 2023 05:07:11 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1783903795771742140 X-GMAIL-MSGID: 1783903795771742140 |
Series |
Add objtool and orc support for LoongArch
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Message
Tiezhu Yang
Nov. 29, 2023, 1:06 p.m. UTC
This version is based on 6.7-rc3, tested with the latest upstream gcc and binutils (20231127). v5: -- Fix the partial backtrace about irq stack -- Check on_stack() again after get_stack_info() -- Silence the orc warning about handle_syscall -- Silence the objtool warnings if CONFIG_CPU_HAS_LBT=y -- Update the commit message about objdump and readelf info Tiezhu Yang (8): objtool/LoongArch: Enable objtool to be built objtool/LoongArch: Implement instruction decoder objtool/x86: Separate arch-specific and generic parts objtool/LoongArch: Enable orc to be built objtool: Check local label about sibling call objtool: Check local label in add_dead_ends() objtool: Check local label in read_unwind_hints() LoongArch: Add ORC stack unwinder support arch/loongarch/Kconfig | 2 + arch/loongarch/Kconfig.debug | 11 + arch/loongarch/Makefile | 19 + arch/loongarch/include/asm/Kbuild | 2 + arch/loongarch/include/asm/bug.h | 1 + arch/loongarch/include/asm/exception.h | 2 + arch/loongarch/include/asm/module.h | 7 + arch/loongarch/include/asm/orc_header.h | 18 + arch/loongarch/include/asm/orc_lookup.h | 31 ++ arch/loongarch/include/asm/orc_types.h | 58 ++ arch/loongarch/include/asm/stackframe.h | 3 + arch/loongarch/include/asm/unwind.h | 19 +- arch/loongarch/include/asm/unwind_hints.h | 28 + arch/loongarch/kernel/Makefile | 4 + arch/loongarch/kernel/entry.S | 6 +- arch/loongarch/kernel/fpu.S | 7 + arch/loongarch/kernel/genex.S | 6 +- arch/loongarch/kernel/lbt.S | 5 + arch/loongarch/kernel/module.c | 22 +- arch/loongarch/kernel/relocate_kernel.S | 2 + arch/loongarch/kernel/setup.c | 2 + arch/loongarch/kernel/stacktrace.c | 1 + arch/loongarch/kernel/traps.c | 42 +- arch/loongarch/kernel/unwind_orc.c | 516 ++++++++++++++++++ arch/loongarch/kernel/vmlinux.lds.S | 3 + arch/loongarch/kvm/switch.S | 7 +- arch/loongarch/lib/Makefile | 2 + arch/loongarch/mm/tlb.c | 27 +- arch/loongarch/mm/tlbex.S | 9 + arch/loongarch/vdso/Makefile | 1 + include/linux/compiler.h | 9 + scripts/Makefile | 7 +- tools/arch/loongarch/include/asm/inst.h | 161 ++++++ tools/arch/loongarch/include/asm/orc_types.h | 58 ++ tools/include/linux/bitops.h | 11 + tools/objtool/Makefile | 4 + tools/objtool/arch/loongarch/Build | 3 + tools/objtool/arch/loongarch/decode.c | 356 ++++++++++++ .../arch/loongarch/include/arch/cfi_regs.h | 22 + .../objtool/arch/loongarch/include/arch/elf.h | 30 + .../arch/loongarch/include/arch/special.h | 33 ++ tools/objtool/arch/loongarch/orc.c | 171 ++++++ tools/objtool/arch/loongarch/special.c | 15 + tools/objtool/arch/x86/Build | 1 + tools/objtool/arch/x86/orc.c | 188 +++++++ tools/objtool/check.c | 117 ++-- tools/objtool/include/objtool/elf.h | 1 + tools/objtool/include/objtool/orc.h | 14 + tools/objtool/orc_dump.c | 69 +-- tools/objtool/orc_gen.c | 113 +--- 50 files changed, 1983 insertions(+), 263 deletions(-) create mode 100644 arch/loongarch/include/asm/orc_header.h create mode 100644 arch/loongarch/include/asm/orc_lookup.h create mode 100644 arch/loongarch/include/asm/orc_types.h create mode 100644 arch/loongarch/include/asm/unwind_hints.h create mode 100644 arch/loongarch/kernel/unwind_orc.c create mode 100644 tools/arch/loongarch/include/asm/inst.h create mode 100644 tools/arch/loongarch/include/asm/orc_types.h create mode 100644 tools/objtool/arch/loongarch/Build create mode 100644 tools/objtool/arch/loongarch/decode.c create mode 100644 tools/objtool/arch/loongarch/include/arch/cfi_regs.h create mode 100644 tools/objtool/arch/loongarch/include/arch/elf.h create mode 100644 tools/objtool/arch/loongarch/include/arch/special.h create mode 100644 tools/objtool/arch/loongarch/orc.c create mode 100644 tools/objtool/arch/loongarch/special.c create mode 100644 tools/objtool/arch/x86/orc.c create mode 100644 tools/objtool/include/objtool/orc.h
Comments
Hi, Tiezhu, There are still some build warnings. If FUNCTION_TRACER enabled, we get AS arch/loongarch/kernel/mcount_dyn.o arch/loongarch/kernel/mcount_dyn.o: warning: objtool: ftrace_common+0x0: unreachable instruction arch/loongarch/kernel/mcount_dyn.o: warning: objtool: ftrace_caller+0x0: unreachable instruction arch/loongarch/kernel/mcount_dyn.o: warning: objtool: ftrace_regs_caller+0x0: unreachable instruction arch/loongarch/kernel/mcount_dyn.o: warning: objtool: ftrace_graph_caller+0x0: unreachable instruction arch/loongarch/kernel/mcount_dyn.o: warning: objtool: return_to_handler+0x0: unreachable instruction arch/loongarch/kernel/mcount_dyn.o: warning: objtool: ftrace_stub_direct_tramp+0x0: unreachable instruction AS arch/loongarch/kernel/rethook_trampoline.o arch/loongarch/kernel/rethook_trampoline.o: warning: objtool: arch_rethook_trampoline+0x0: unreachable instruction And when I use the latest binutils/gcc for native build, there are some warnings in some files from the {init, kernel} directory. But cross-building is fine, I don't know why. Huacai On Wed, Nov 29, 2023 at 9:07 PM Tiezhu Yang <yangtiezhu@loongson.cn> wrote: > > This version is based on 6.7-rc3, tested with the latest upstream > gcc and binutils (20231127). > > v5: > -- Fix the partial backtrace about irq stack > -- Check on_stack() again after get_stack_info() > -- Silence the orc warning about handle_syscall > -- Silence the objtool warnings if CONFIG_CPU_HAS_LBT=y > -- Update the commit message about objdump and readelf info > > Tiezhu Yang (8): > objtool/LoongArch: Enable objtool to be built > objtool/LoongArch: Implement instruction decoder > objtool/x86: Separate arch-specific and generic parts > objtool/LoongArch: Enable orc to be built > objtool: Check local label about sibling call > objtool: Check local label in add_dead_ends() > objtool: Check local label in read_unwind_hints() > LoongArch: Add ORC stack unwinder support > > arch/loongarch/Kconfig | 2 + > arch/loongarch/Kconfig.debug | 11 + > arch/loongarch/Makefile | 19 + > arch/loongarch/include/asm/Kbuild | 2 + > arch/loongarch/include/asm/bug.h | 1 + > arch/loongarch/include/asm/exception.h | 2 + > arch/loongarch/include/asm/module.h | 7 + > arch/loongarch/include/asm/orc_header.h | 18 + > arch/loongarch/include/asm/orc_lookup.h | 31 ++ > arch/loongarch/include/asm/orc_types.h | 58 ++ > arch/loongarch/include/asm/stackframe.h | 3 + > arch/loongarch/include/asm/unwind.h | 19 +- > arch/loongarch/include/asm/unwind_hints.h | 28 + > arch/loongarch/kernel/Makefile | 4 + > arch/loongarch/kernel/entry.S | 6 +- > arch/loongarch/kernel/fpu.S | 7 + > arch/loongarch/kernel/genex.S | 6 +- > arch/loongarch/kernel/lbt.S | 5 + > arch/loongarch/kernel/module.c | 22 +- > arch/loongarch/kernel/relocate_kernel.S | 2 + > arch/loongarch/kernel/setup.c | 2 + > arch/loongarch/kernel/stacktrace.c | 1 + > arch/loongarch/kernel/traps.c | 42 +- > arch/loongarch/kernel/unwind_orc.c | 516 ++++++++++++++++++ > arch/loongarch/kernel/vmlinux.lds.S | 3 + > arch/loongarch/kvm/switch.S | 7 +- > arch/loongarch/lib/Makefile | 2 + > arch/loongarch/mm/tlb.c | 27 +- > arch/loongarch/mm/tlbex.S | 9 + > arch/loongarch/vdso/Makefile | 1 + > include/linux/compiler.h | 9 + > scripts/Makefile | 7 +- > tools/arch/loongarch/include/asm/inst.h | 161 ++++++ > tools/arch/loongarch/include/asm/orc_types.h | 58 ++ > tools/include/linux/bitops.h | 11 + > tools/objtool/Makefile | 4 + > tools/objtool/arch/loongarch/Build | 3 + > tools/objtool/arch/loongarch/decode.c | 356 ++++++++++++ > .../arch/loongarch/include/arch/cfi_regs.h | 22 + > .../objtool/arch/loongarch/include/arch/elf.h | 30 + > .../arch/loongarch/include/arch/special.h | 33 ++ > tools/objtool/arch/loongarch/orc.c | 171 ++++++ > tools/objtool/arch/loongarch/special.c | 15 + > tools/objtool/arch/x86/Build | 1 + > tools/objtool/arch/x86/orc.c | 188 +++++++ > tools/objtool/check.c | 117 ++-- > tools/objtool/include/objtool/elf.h | 1 + > tools/objtool/include/objtool/orc.h | 14 + > tools/objtool/orc_dump.c | 69 +-- > tools/objtool/orc_gen.c | 113 +--- > 50 files changed, 1983 insertions(+), 263 deletions(-) > create mode 100644 arch/loongarch/include/asm/orc_header.h > create mode 100644 arch/loongarch/include/asm/orc_lookup.h > create mode 100644 arch/loongarch/include/asm/orc_types.h > create mode 100644 arch/loongarch/include/asm/unwind_hints.h > create mode 100644 arch/loongarch/kernel/unwind_orc.c > create mode 100644 tools/arch/loongarch/include/asm/inst.h > create mode 100644 tools/arch/loongarch/include/asm/orc_types.h > create mode 100644 tools/objtool/arch/loongarch/Build > create mode 100644 tools/objtool/arch/loongarch/decode.c > create mode 100644 tools/objtool/arch/loongarch/include/arch/cfi_regs.h > create mode 100644 tools/objtool/arch/loongarch/include/arch/elf.h > create mode 100644 tools/objtool/arch/loongarch/include/arch/special.h > create mode 100644 tools/objtool/arch/loongarch/orc.c > create mode 100644 tools/objtool/arch/loongarch/special.c > create mode 100644 tools/objtool/arch/x86/orc.c > create mode 100644 tools/objtool/include/objtool/orc.h > > -- > 2.42.0 > >
On 12/02/2023 09:52 PM, Huacai Chen wrote: > Hi, Tiezhu, > > There are still some build warnings. > > If FUNCTION_TRACER enabled, we get > AS arch/loongarch/kernel/mcount_dyn.o > arch/loongarch/kernel/mcount_dyn.o: warning: objtool: > ftrace_common+0x0: unreachable instruction > arch/loongarch/kernel/mcount_dyn.o: warning: objtool: > ftrace_caller+0x0: unreachable instruction > arch/loongarch/kernel/mcount_dyn.o: warning: objtool: > ftrace_regs_caller+0x0: unreachable instruction > arch/loongarch/kernel/mcount_dyn.o: warning: objtool: > ftrace_graph_caller+0x0: unreachable instruction > arch/loongarch/kernel/mcount_dyn.o: warning: objtool: > return_to_handler+0x0: unreachable instruction > arch/loongarch/kernel/mcount_dyn.o: warning: objtool: > ftrace_stub_direct_tramp+0x0: unreachable instruction > > AS arch/loongarch/kernel/rethook_trampoline.o > arch/loongarch/kernel/rethook_trampoline.o: warning: objtool: > arch_rethook_trampoline+0x0: unreachable instruction I tested with the default config loongson3_defconfig, the FUNCTION_TRACE is not enabled, let me try to fix it. > And when I use the latest binutils/gcc for native build, there are > some warnings in some files from the {init, kernel} directory. But > cross-building is fine, I don't know why. I can not reproduce it for native build, it works well, I will analysis if it can reproduce someday. Thanks, Tiezhu