Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762076AbXLTMKt (ORCPT ); Thu, 20 Dec 2007 07:10:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761117AbXLTMBK (ORCPT ); Thu, 20 Dec 2007 07:01:10 -0500 Received: from mx2.redhat.com ([66.187.237.31]:41848 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761105AbXLTMAs (ORCPT ); Thu, 20 Dec 2007 07:00:48 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit From: Roland McGrath To: Andrew Morton , Linus Torvalds X-Fcc: ~/Mail/linus Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Cc: linuxppc-dev@ozlabs.org, Paul Mackerras In-Reply-To: Roland McGrath's message of Thursday, 20 December 2007 03:52:00 -0800 <20071220115200.C767E26F98A@magilla.localdomain> References: <20071220115200.C767E26F98A@magilla.localdomain> Subject: [PATCH -mm 15/43] powerpc user_regset_view Message-Id: <20071220115800.C538426F98D@magilla.localdomain> Date: Thu, 20 Dec 2007 03:58:00 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2762 Lines: 95 This provides the task_user_regset_view entry point and support for all the native-mode (64 on CONFIG_PPC64, 32 on CONFIG_PPC32) thread register state. This will enable generic machine-independent code to access user-mode threads' registers for debugging and dumping. Signed-off-by: Roland McGrath --- arch/powerpc/kernel/Makefile | 2 + arch/powerpc/kernel/ptrace.c | 52 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 54 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index ca51f0c..615ed96 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -2,6 +2,8 @@ # Makefile for the linux kernel. # +CFLAGS_ptrace.o += -DUTS_MACHINE='"$(UTS_MACHINE)"' + ifeq ($(CONFIG_PPC64),y) EXTRA_CFLAGS += -mno-minimal-toc endif diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index e493fc0..b32ac5f 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -455,6 +455,58 @@ static int set_evrregs(struct task_struct *task, unsigned long *data) #endif /* CONFIG_SPE */ +/* + * These are our native regset flavors. + */ +enum powerpc_regset { + REGSET_GPR, + REGSET_FPR, +#ifdef CONFIG_ALTIVEC + REGSET_VMX, +#endif +#ifdef CONFIG_SPE + REGSET_SPE, +#endif +}; + +static const struct user_regset native_regsets[] = { + [REGSET_GPR] = { + .core_note_type = NT_PRSTATUS, .n = ELF_NGREG, + .size = sizeof(long), .align = sizeof(long), + .get = gpr_get, .set = gpr_set + }, + [REGSET_FPR] = { + .core_note_type = NT_PRFPREG, .n = ELF_NFPREG, + .size = sizeof(double), .align = sizeof(double), + .get = fpr_get, .set = fpr_set + }, +#ifdef CONFIG_ALTIVEC + [REGSET_VMX] = { + .core_note_type = NT_PPC_VMX, .n = 34, + .size = sizeof(vector128), .align = sizeof(vector128), + .active = vr_active, .get = vr_get, .set = vr_set + }, +#endif +#ifdef CONFIG_SPE + [REGSET_SPE] = { + .n = 35, + .size = sizeof(u32), .align = sizeof(u32), + .active = evr_active, .get = evr_get, .set = evr_set + }, +#endif +}; + +static const struct user_regset_view user_ppc_native_view = { + .name = UTS_MACHINE, .e_machine = ELF_ARCH, .ei_osabi = ELF_OSABI, + .regsets = native_regsets, .n = ARRAY_SIZE(native_regsets) +}; + +const struct user_regset_view *task_user_regset_view(struct task_struct *task) +{ + return &user_ppc_native_view; +} + + void user_enable_single_step(struct task_struct *task) { struct pt_regs *regs = task->thread.regs; -- 1.5.3.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/