From patchwork Wed Feb 23 15:19:36 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Maydell X-Patchwork-Id: 84188 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [199.232.76.165]) by ozlabs.org (Postfix) with ESMTP id C9EE8B7118 for ; Thu, 24 Feb 2011 02:35:20 +1100 (EST) Received: from localhost ([127.0.0.1]:60477 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PsGYH-00005p-JO for incoming@patchwork.ozlabs.org; Wed, 23 Feb 2011 10:22:53 -0500 Received: from [140.186.70.92] (port=42038 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PsGVK-0006ts-0o for qemu-devel@nongnu.org; Wed, 23 Feb 2011 10:19:51 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PsGVH-0006ps-B0 for qemu-devel@nongnu.org; Wed, 23 Feb 2011 10:19:49 -0500 Received: from mnementh.archaic.org.uk ([81.2.115.146]:40780) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PsGVH-0006o2-3z for qemu-devel@nongnu.org; Wed, 23 Feb 2011 10:19:47 -0500 Received: from pm215 by mnementh.archaic.org.uk with local (Exim 4.72) (envelope-from ) id 1PsGV6-0005L6-7Q; Wed, 23 Feb 2011 15:19:36 +0000 From: Peter Maydell To: qemu-devel@nongnu.org Date: Wed, 23 Feb 2011 15:19:36 +0000 Message-Id: <1298474376-20495-4-git-send-email-peter.maydell@linaro.org> X-Mailer: git-send-email 1.7.2.3 In-Reply-To: <1298474376-20495-1-git-send-email-peter.maydell@linaro.org> References: <1298474376-20495-1-git-send-email-peter.maydell@linaro.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 81.2.115.146 Cc: patches@linaro.org Subject: [Qemu-devel] [PATCH 3/3] target-arm: Use TCG temporary leak debugging facilities X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Use the new TCG temporary leak debugging facilities to check that each ARM instruction does not leak temporaries. Signed-off-by: Peter Maydell --- target-arm/translate.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/target-arm/translate.c b/target-arm/translate.c index 31067d5..b96a136 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -9125,6 +9125,8 @@ static inline void gen_intermediate_code_internal(CPUState *env, gen_icount_start(); + tcg_clear_temp_count(); + /* A note on handling of the condexec (IT) bits: * * We want to avoid the overhead of having to write the updated condexec @@ -9234,6 +9236,11 @@ static inline void gen_intermediate_code_internal(CPUState *env, gen_set_label(dc->condlabel); dc->condjmp = 0; } + + if (tcg_check_temp_count()) { + fprintf(stderr, "TCG temporary leak before %08x\n", dc->pc); + } + /* Translation stops when a conditional branch is encountered. * Otherwise the subsequent code could get translated several times. * Also stop translation when a page boundary is reached. This