From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 634E826AAA3; Tue, 8 Apr 2025 12:52:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744116731; cv=none; b=Zw4qW7164GGRIYJqZBnm//S36w1s3TGyx2vRRgNhZKNBJWZ4lyyqOGZBgp1no+r1FtnjlqEiJXhL0baDl8PFXWhU5ZakbscdZOHGELoZ+0YkVMbSTZ2J2/YTyt3OqPDjAF9ZWHvb3wyIrFw6yq+qmb9HqKenu+yWhVMvM1xvpts= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744116731; c=relaxed/simple; bh=0vnY0Ty6YJW1l3eL3Vb3Yxzt0TuXrSq9rDOZ8teYMRk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bkoiU/531gCnwlVjmYk41toiFuw0n5ML/L4QnpWM5JzXaEYRld3S8d4i1XOrbpEzB6js6vC/TaDRpURYV01w1ojFXLcTUA5sEWVbI/0uQGAmuArzLAoYWeSSj3CE0z+aIN5EnNrHksIDcDpujnqrryIAGc11RDKw094ArPesdxA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=nWqqS9by; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="nWqqS9by" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E9A49C4CEE5; Tue, 8 Apr 2025 12:52:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1744116731; bh=0vnY0Ty6YJW1l3eL3Vb3Yxzt0TuXrSq9rDOZ8teYMRk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nWqqS9byY7CFknj+0uvzltFmNc71O4cYZD/mGceLODyhziVfUO8pgRklas/6b7BQ4 NqD5YkCIfyfCKxwUiGq2OCmtoshuIB3YBWg9MIqtupq02J9KUTtY0K+orRp73tYDte S+iNd/CmmW6hG7BVEKclCElfV8kC94mo/J80roos= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, David Laight , Josh Poimboeuf , Ingo Molnar , Linus Torvalds , Sasha Levin Subject: [PATCH 6.12 247/423] objtool: Fix verbose disassembly if CROSS_COMPILE isnt set Date: Tue, 8 Apr 2025 12:49:33 +0200 Message-ID: <20250408104851.486561384@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250408104845.675475678@linuxfoundation.org> References: <20250408104845.675475678@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: David Laight [ Upstream commit e77956e4e5c11218e60a1fe8cdbccd02476f2e56 ] In verbose mode, when printing the disassembly of affected functions, if CROSS_COMPILE isn't set, the objdump command string gets prefixed with "(null)". Somehow this worked before. Maybe some versions of glibc return an empty string instead of NULL. Fix it regardless. [ jpoimboe: Rewrite commit log. ] Fixes: ca653464dd097 ("objtool: Add verbose option for disassembling affected functions") Signed-off-by: David Laight Signed-off-by: Josh Poimboeuf Signed-off-by: Ingo Molnar Cc: Linus Torvalds Link: https://lore.kernel.org/r/20250215142321.14081-1-david.laight.linux@gmail.com Link: https://lore.kernel.org/r/b931a4786bc0127aa4c94e8b35ed617dcbd3d3da.1743481539.git.jpoimboe@kernel.org Signed-off-by: Sasha Levin --- tools/objtool/check.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 4030412637ad0..286a2c0af02aa 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -4614,6 +4614,8 @@ static int disas_funcs(const char *funcs) char *cmd; cross_compile = getenv("CROSS_COMPILE"); + if (!cross_compile) + cross_compile = ""; objdump_str = "%sobjdump -wdr %s | gawk -M -v _funcs='%s' '" "BEGIN { split(_funcs, funcs); }" -- 2.39.5