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Tue, 29 Oct 2019 15:01:24 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id m5zGj5hczfzc; Tue, 29 Oct 2019 15:01:24 +0100 (CET) Received: from [192.168.4.90] (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id C090B8B85C; Tue, 29 Oct 2019 15:01:23 +0100 (CET) Subject: Re: [PATCH v6 0/7] Powerpc/Watchpoint: Few important fixes To: Ravi Bangoria References: <20191017093204.7511-1-ravi.bangoria@linux.ibm.com> <10cce8b1-8142-39d3-cd91-58b85dac7c8c@linux.ibm.com> From: Christophe Leroy Message-ID: Date: Tue, 29 Oct 2019 15:01:23 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <10cce8b1-8142-39d3-cd91-58b85dac7c8c@linux.ibm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: fr Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mikey@neuling.org, linux-kernel@vger.kernel.org, npiggin@gmail.com, paulus@samba.org, naveen.n.rao@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Le 29/10/2019 à 05:54, Ravi Bangoria a écrit : > > > On 10/17/19 3:01 PM, Ravi Bangoria wrote: >> v5: >> https://lists.ozlabs.org/pipermail/linuxppc-dev/2019-October/198069.html >> >> v5->v6: >> - patch 6/7: mpe reported that the perf-hwbreak.c doesn't compile >> with older >> gcc: >> perf-hwbreak.c:182:2: error: dereferencing type-punned >> pointer will >> break strict-aliasing rules [-Werror=strict-aliasing] >> temp16 = *((__u16 *)target); >> ^ >> Fixed that. >> > > Hi Christophe, Are you ok with the series wrt 8xx? Yes it looks ok on my 885: root@vgoip:~# ./ptrace-hwbreak test: ptrace-hwbreak tags: git_version:v5.4-rc4-835-gb235e63aa9f0-dirty PTRACE_SET_DEBUGREG, WO, len: 1: Ok PTRACE_SET_DEBUGREG, WO, len: 2: Ok PTRACE_SET_DEBUGREG, WO, len: 4: Ok PTRACE_SET_DEBUGREG, WO, len: 8: Ok PTRACE_SET_DEBUGREG, RO, len: 1: Ok PTRACE_SET_DEBUGREG, RO, len: 2: Ok PTRACE_SET_DEBUGREG, RO, len: 4: Ok PTRACE_SET_DEBUGREG, RO, len: 8: Ok PTRACE_SET_DEBUGREG, RW, len: 1: Ok PTRACE_SET_DEBUGREG, RW, len: 2: Ok PTRACE_SET_DEBUGREG, RW, len: 4: Ok PTRACE_SET_DEBUGREG, RW, len: 8: Ok PPC_PTRACE_SETHWDEBUG, MODE_EXACT, WO, len: 1: Ok PPC_PTRACE_SETHWDEBUG, MODE_EXACT, RO, len: 1: Ok PPC_PTRACE_SETHWDEBUG, MODE_EXACT, RW, len: 1: Ok success: ptrace-hwbreak Also ok on book3s/32: root@vgoippro:~# ./ptrace-hwbreak test: ptrace-hwbreak tags: git_version:v5.4-rc4-835-gb235e63aa9f0-dirty PTRACE_SET_DEBUGREG, WO, len: 1: Ok PTRACE_SET_DEBUGREG, WO, len: 2: Ok PTRACE_SET_DEBUGREG, WO, len: 4: Ok PTRACE_SET_DEBUGREG, WO, len: 8: Ok PTRACE_SET_DEBUGREG, RO, len: 1: Ok PTRACE_SET_DEBUGREG, RO, len: 2: Ok PTRACE_SET_DEBUGREG, RO, len: 4: Ok PTRACE_SET_DEBUGREG, RO, len: 8: Ok PTRACE_SET_DEBUGREG, RW, len: 1: Ok PTRACE_SET_DEBUGREG, RW, len: 2: Ok PTRACE_SET_DEBUGREG, RW, len: 4: Ok PTRACE_SET_DEBUGREG, RW, len: 8: Ok PPC_PTRACE_SETHWDEBUG, MODE_EXACT, WO, len: 1: Ok PPC_PTRACE_SETHWDEBUG, MODE_EXACT, RO, len: 1: Ok PPC_PTRACE_SETHWDEBUG, MODE_EXACT, RW, len: 1: Ok PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW ALIGNED, WO, len: 6: Ok PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW ALIGNED, RO, len: 6: Ok PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW ALIGNED, RW, len: 6: Ok success: ptrace-hwbreak Christophe