From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from simark.ca (simark.ca [158.69.221.121]) by sourceware.org (Postfix) with ESMTPS id 67437384B06A for ; Thu, 19 Mar 2020 12:55:26 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 67437384B06A Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=simark.ca Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=simark@simark.ca Received: from [10.0.0.11] (unknown [192.222.164.54]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by simark.ca (Postfix) with ESMTPSA id 495F81E092; Thu, 19 Mar 2020 08:55:25 -0400 (EDT) Subject: Re: [PATCH v4] Disable get_ptrace_pid for NetBSD To: Kamil Rytarowski , gdb-patches@sourceware.org Cc: tom@tromey.com References: <20200318231651.18045-1-n54@gmx.com> <20200319122844.24558-1-n54@gmx.com> From: Simon Marchi Message-ID: <3bbb5348-a6bb-fac2-3ca1-2a3e8a1eb11e@simark.ca> Date: Thu, 19 Mar 2020 08:55:23 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <20200319122844.24558-1-n54@gmx.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US-large Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=0.0 required=5.0 tests=KAM_DMARC_STATUS, SPF_HELO_PASS, SPF_PASS autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Mar 2020 12:55:27 -0000 On 2020-03-19 8:28 a.m., Kamil Rytarowski wrote: > Unlike most other Operating Systems, NetBSD tracks both pid and lwp. > The process id on NetBSD is stored always in the pid field of ptid. > > gdb/ChangeLog: > > * inf-ptrace.h: Disable get_ptrace_pid on NetBSD. > * inf-ptrace.c: Likewise. > * (gdb_ptrace): Add. > * (inf_ptrace_target::resume): Update. > * (inf_ptrace_target::xfer_partial): Likewise. > * (inf_ptrace_peek_poke): Change argument `pid' to `ptid'. > * (inf_ptrace_peek_poke): Update. Hmm, this breaks simple debugging on Linux: $ ./gdb --data-directory=data-directory a.out -ex start Reading symbols from a.out... Temporary breakpoint 1 at 0x4004da: file test.c, line 2. Starting program: /home/smarchi/build/binutils-gdb/gdb/a.out Program received signal SIGILL, Illegal instruction. 0x00007ffff7dda96d in dl_main (phdr=, phnum=, user_entry=, auxv=) at rtld.c:1517 1517 rtld.c: No such file or directory. I haven't figured out why by inspecting the code yet, I'll try to debug it later today. Simon