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a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1704360875; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=m1dzXWXtanidcRqNf7pTgZuB9sg4I7BIsO8RkysnZBw=; b=K3Jo2mzlh1Gs6VdSKUEBt4LtQBVZhzHKhk+lGH1oJ8JTxQOwqot9fy4wKZlwP+U59HGCdU bomWoxj5ANQLBT0SbxI9ON2v57T7JrHMA5mk+ZrUmie+pGRHMsyzGOWXcI+Q5nd7Xxnt2o EN17oJPDYyVr5Q6ChkEp2vsLepMpbFQsfs+TZ8s+z/MsPUltTzreOqNYH51rOgr8rHaWhi wb85hQGzKd3pJTO+5LjsBSejdnAF82sIi6dJ+MmLi/k3QtZj9hDmjhYNyEqjieZ09KKoym TwLUFlkanPLOwU5TqMPEDp2s+IyPMunWIVnhkSs1mATXyH4ts3n7OWWgr+GRsg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1704360875; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=m1dzXWXtanidcRqNf7pTgZuB9sg4I7BIsO8RkysnZBw=; b=+89tdcqFGh+FegbQyTYTbSesmePm3gWHWURr+SRydv3MD/FHxethgIgSXbHGWJaRRvypmA 5IWukeLB/OIZ6CDw== From: "tip-bot2 for Nathan Chancellor" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: x86/build] x86/tools: objdump_reformat.awk: Skip bad instructions from llvm-objdump Cc: Nathan Chancellor , "Borislav Petkov (AMD)" , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: =?utf-8?q?=3C20231205-objdump=5Freformat-awk-handle-llvm-objdum?= =?utf-8?q?p-bad=5Fexpr-v1-1-b4a74f39396f=40kernel=2Eorg=3E?= References: =?utf-8?q?=3C20231205-objdump=5Freformat-awk-handle-llvm-objdump?= =?utf-8?q?-bad=5Fexpr-v1-1-b4a74f39396f=40kernel=2Eorg=3E?= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <170436087400.398.10481270651479609667.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Precedence: bulk X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1784472938959962618 X-GMAIL-MSGID: 1787151936495067366 The following commit has been merged into the x86/build branch of tip: Commit-ID: bcf7ef56daca2eacf836d22eee23c66f7cd96a65 Gitweb: https://git.kernel.org/tip/bcf7ef56daca2eacf836d22eee23c66f7cd96a65 Author: Nathan Chancellor AuthorDate: Tue, 05 Dec 2023 12:53:08 -07:00 Committer: Borislav Petkov (AMD) CommitterDate: Thu, 04 Jan 2024 10:04:02 +01:00 x86/tools: objdump_reformat.awk: Skip bad instructions from llvm-objdump When running the instruction decoder selftest with LLVM=1 and CONFIG_PVH=y, there is a series of warnings: arch/x86/tools/insn_decoder_test: warning: Found an x86 instruction decoder bug, please report this. arch/x86/tools/insn_decoder_test: warning: ffffffff81000050 ea arch/x86/tools/insn_decoder_test: warning: objdump says 1 bytes, but insn_get_length() says 7 arch/x86/tools/insn_decoder_test: warning: Decoded and checked 7214721 instructions with 1 failures GNU objdump outputs "(bad)" instead of "", which is already handled in the bad_expr regex, so there is no warning. $ objdump -d arch/x86/platform/pvh/head.o | grep -E '50:\s+ea' 50: ea (bad) $ llvm-objdump -d arch/x86/platform/pvh/head.o | grep -E '50:\s+ea' 50: ea Add "" to the bad_expr regex to clear up the warning, allowing the instruction decoder selftest to fully pass with llvm-objdump. Signed-off-by: Nathan Chancellor Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/r/20231205-objdump_reformat-awk-handle-llvm-objdump-bad_expr-v1-1-b4a74f39396f@kernel.org --- arch/x86/tools/objdump_reformat.awk | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/tools/objdump_reformat.awk b/arch/x86/tools/objdump_reformat.awk index a4120d9..20b08a6 100644 --- a/arch/x86/tools/objdump_reformat.awk +++ b/arch/x86/tools/objdump_reformat.awk @@ -11,7 +11,7 @@ BEGIN { prev_addr = "" prev_hex = "" prev_mnemonic = "" - bad_expr = "(\\(bad\\)|^rex|^.byte|^rep(z|nz)$|^lock$|^es$|^cs$|^ss$|^ds$|^fs$|^gs$|^data(16|32)$|^addr(16|32|64))" + bad_expr = "(\\(bad\\)||^rex|^.byte|^rep(z|nz)$|^lock$|^es$|^cs$|^ss$|^ds$|^fs$|^gs$|^data(16|32)$|^addr(16|32|64))" fwait_expr = "^9b[ \t]*fwait" fwait_str="9b\tfwait" }