From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e28smtp07.in.ibm.com (e28smtp07.in.ibm.com [122.248.162.7]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e28smtp07.in.ibm.com", Issuer "GeoTrust SSL CA" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id CDCCBB6F57 for ; Fri, 19 Aug 2011 17:53:58 +1000 (EST) Received: from d28relay01.in.ibm.com (d28relay01.in.ibm.com [9.184.220.58]) by e28smtp07.in.ibm.com (8.14.4/8.13.1) with ESMTP id p7J7rjYc003436 for ; Fri, 19 Aug 2011 13:23:45 +0530 Received: from d28av05.in.ibm.com (d28av05.in.ibm.com [9.184.220.67]) by d28relay01.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p7J7rjUq4493388 for ; Fri, 19 Aug 2011 13:23:45 +0530 Received: from d28av05.in.ibm.com (loopback [127.0.0.1]) by d28av05.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id p7J7ri14013294 for ; Fri, 19 Aug 2011 17:53:45 +1000 Date: Fri, 19 Aug 2011 13:23:38 +0530 From: "K.Prasad" To: linuxppc-dev@ozlabs.org Subject: [PATCH 2/2] [PowerPC Book3E] Introduce new ptrace debug feature flag Message-ID: <20110819075338.GC21817@in.ibm.com> References: <20110819074527.GA21817@in.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20110819074527.GA21817@in.ibm.com> Cc: Thiago Jung Bauermann , Edjunior Barbosa Machado , dwg@au1.ibm.com Reply-To: prasad@linux.vnet.ibm.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , While PPC_PTRACE_SETHWDEBUG ptrace flag in PowerPC accepts PPC_BREAKPOINT_MODE_EXACT mode of breakpoint, the same is not intimated to the user-space debuggers (like GDB) who may want to use it. Hence we introduce a new PPC_DEBUG_FEATURE_DATA_BP_EXACT flag which will be populated on the "features" member of "struct ppc_debug_info" to advertise support for the same on Book3E PowerPC processors. Signed-off-by: K.Prasad --- arch/powerpc/include/asm/ptrace.h | 1 + arch/powerpc/kernel/ptrace.c | 1 + 2 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h index 48223f9..cf014f9 100644 --- a/arch/powerpc/include/asm/ptrace.h +++ b/arch/powerpc/include/asm/ptrace.h @@ -380,6 +380,7 @@ struct ppc_debug_info { #define PPC_DEBUG_FEATURE_INSN_BP_MASK 0x0000000000000002 #define PPC_DEBUG_FEATURE_DATA_BP_RANGE 0x0000000000000004 #define PPC_DEBUG_FEATURE_DATA_BP_MASK 0x0000000000000008 +#define PPC_DEBUG_FEATURE_DATA_BP_EXACT 0x0000000000000010 #ifndef __ASSEMBLY__ diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index 18d28b6..71db5a6 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -1636,6 +1636,7 @@ long arch_ptrace(struct task_struct *child, long request, #ifdef CONFIG_PPC_ADV_DEBUG_DAC_RANGE dbginfo.features |= PPC_DEBUG_FEATURE_DATA_BP_RANGE | + PPC_DEBUG_FEATURE_DATA_BP_EXACT | PPC_DEBUG_FEATURE_DATA_BP_MASK; #endif #else /* !CONFIG_PPC_ADV_DEBUG_REGS */ -- 1.7.4.1