From patchwork Wed Nov 24 15:20:07 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Maydell X-Patchwork-Id: 72903 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]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 346FEB6F11 for ; Thu, 25 Nov 2010 02:29:37 +1100 (EST) Received: from localhost ([127.0.0.1]:49809 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PLHHq-0003iT-MG for incoming@patchwork.ozlabs.org; Wed, 24 Nov 2010 10:29:34 -0500 Received: from [140.186.70.92] (port=34771 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PLH8q-0006wE-Vz for qemu-devel@nongnu.org; Wed, 24 Nov 2010 10:20:20 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PLH8n-00048b-23 for qemu-devel@nongnu.org; Wed, 24 Nov 2010 10:20:16 -0500 Received: from mnementh.archaic.org.uk ([81.2.115.146]:16641) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PLH8m-00045l-QD for qemu-devel@nongnu.org; Wed, 24 Nov 2010 10:20:13 -0500 Received: from pm215 by mnementh.archaic.org.uk with local (Exim 4.69) (envelope-from ) id 1PLH8i-0004s5-FQ for qemu-devel@nongnu.org; Wed, 24 Nov 2010 15:20:08 +0000 From: Peter Maydell To: qemu-devel@nongnu.org Date: Wed, 24 Nov 2010 15:20:07 +0000 Message-Id: <1290612008-18693-6-git-send-email-peter.maydell@linaro.org> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1290612008-18693-1-git-send-email-peter.maydell@linaro.org> References: <1290612008-18693-1-git-send-email-peter.maydell@linaro.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) Subject: [Qemu-devel] [PATCH 5/6] ARM: linux-user: Expose iWMMXT registers to signal handlers 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 Signed-off-by: Peter Maydell --- linux-user/signal.c | 37 +++++++++++++++++++++++++++++++++++++ 1 files changed, 37 insertions(+), 0 deletions(-) diff --git a/linux-user/signal.c b/linux-user/signal.c index 5e8cbeb..3d0233d 100644 --- a/linux-user/signal.c +++ b/linux-user/signal.c @@ -1130,7 +1130,21 @@ struct target_vfp_sigframe { struct target_user_vfp_exc ufp_exc; } __attribute__((__aligned__(8))); +struct target_iwmmxt_sigframe { + abi_ulong magic; + abi_ulong size; + uint64_t regs[16]; + /* Note that not all the coprocessor control registers are stored here */ + uint32_t wcssf; + uint32_t wcasf; + uint32_t wcgr0; + uint32_t wcgr1; + uint32_t wcgr2; + uint32_t wcgr3; +} __attribute__((__aligned__(8))); + #define TARGET_VFP_MAGIC 0x56465001 +#define TARGET_IWMMXT_MAGIC 0x12ef842a struct sigframe_v1 { @@ -1292,6 +1306,25 @@ static abi_ulong *setup_sigframe_v2_vfp(abi_ulong *regspace, CPUState *env) return (abi_ulong*)(vfpframe+1); } +static abi_ulong *setup_sigframe_v2_iwmmxt(abi_ulong *regspace, CPUState *env) +{ + int i; + struct target_iwmmxt_sigframe *iwmmxtframe; + iwmmxtframe = (struct target_iwmmxt_sigframe *)regspace; + __put_user(TARGET_IWMMXT_MAGIC, &iwmmxtframe->magic); + __put_user(sizeof(*iwmmxtframe), &iwmmxtframe->size); + for (i = 0; i < 16; i++) { + __put_user(env->iwmmxt.regs[i], &iwmmxtframe->regs[i]); + } + __put_user(env->vfp.xregs[ARM_IWMMXT_wCSSF], &iwmmxtframe->wcssf); + __put_user(env->vfp.xregs[ARM_IWMMXT_wCASF], &iwmmxtframe->wcssf); + __put_user(env->vfp.xregs[ARM_IWMMXT_wCGR0], &iwmmxtframe->wcgr0); + __put_user(env->vfp.xregs[ARM_IWMMXT_wCGR1], &iwmmxtframe->wcgr1); + __put_user(env->vfp.xregs[ARM_IWMMXT_wCGR2], &iwmmxtframe->wcgr2); + __put_user(env->vfp.xregs[ARM_IWMMXT_wCGR3], &iwmmxtframe->wcgr3); + return (abi_ulong*)(iwmmxtframe+1); +} + static void setup_sigframe_v2(struct target_ucontext_v2 *uc, target_sigset_t *set, CPUState *env) { @@ -1314,6 +1347,10 @@ static void setup_sigframe_v2(struct target_ucontext_v2 *uc, if (arm_feature(env, ARM_FEATURE_VFP)) { regspace = setup_sigframe_v2_vfp(regspace, env); } + if (arm_feature(env, ARM_FEATURE_IWMMXT)) { + regspace = setup_sigframe_v2_iwmmxt(regspace, env); + } + /* Write terminating magic word */ __put_user(0, regspace);