From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id AEAC13855581 for ; Tue, 25 Jul 2023 20:42:59 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org AEAC13855581 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1690317778; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=QKorqhv8tkb1ZONQQF+LLDwy7Urj+UetezJP5u3ZrBM=; b=aylF6HUDL8H9LVt8YY+dm5Lhc89SJyTo469HFgvCv4wFbkDeTONald2345CJ+CE0Y/YWjS A7Q75FaqQ7XGp7KKWHfwgMpTALvNWtF57glfIo0A+Aj8N0uYeL55Ckd2Xw5Ry7aX50q8ng scAd+EOd/G+9XlJ+KWXkrXAOn3Kq9z4= Received: from mimecast-mx02.redhat.com (66.187.233.73 [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-176-r6G3PwJxNxGkQJ2MsffaJw-1; Tue, 25 Jul 2023 16:42:55 -0400 X-MC-Unique: r6G3PwJxNxGkQJ2MsffaJw-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 4D31C3C100B0; Tue, 25 Jul 2023 20:42:55 +0000 (UTC) Received: from [10.22.16.32] (unknown [10.22.16.32]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 05250F7833; Tue, 25 Jul 2023 20:42:54 +0000 (UTC) Message-ID: Date: Tue, 25 Jul 2023 13:42:53 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 Subject: Re: [PATCH v6 00/15] Handle variable XSAVE layouts To: John Baldwin , gdb-patches@sourceware.org References: <20230714155151.21723-1-jhb@FreeBSD.org> <6a412964-2a25-da39-7c3b-38050437795a@FreeBSD.org> From: Keith Seitz In-Reply-To: <6a412964-2a25-da39-7c3b-38050437795a@FreeBSD.org> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-5.2 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On 7/25/23 11:59, John Baldwin wrote: > > Hopefully it triggers the assertion, and then what will be useful is to see what > features the tdesc contains ('info locals' would cover that if they aren't all > optimized out). Yes, that assertion does trigger (on all -m32 targets). From the native-gdbserver/-m32 case at the assertion (I have a debug build): (top-gdb) info locals tdesc = 0x197b410 feature_core = 0x197d5a0 feature_sse = 0x1987200 feature_avx = 0x1989db0 feature_mpx = 0x0 feature_avx512 = 0x198a310 feature_pkeys = 0x198aec0 feature_segments = 0x0 i = 0 num_regs = 32767 valid_p = 1 __func__ = "i386_validate_tdesc_p" (top-gdb) p *tdep $2 = { = { _vptr.gdbarch_tdep_base = 0xf5df38 }, gregset_reg_offset = 0x159fb20 , gregset_num_regs = 73, sizeof_gregset = 68, sizeof_fpregset = 108, st0_regnum = 16, num_mmx_regs = 8, mm0_regnum = 0, num_ymm_regs = 0, ymm0_regnum = 0, num_k_regs = 0, k0_regnum = 55, num_zmm_regs = 8, zmm0_regnum = 0, num_byte_regs = 8, al_regnum = 0, num_word_regs = 8, ax_regnum = 0, num_dword_regs = 0, eax_regnum = 0, num_core_regs = 32, num_xmm_regs = 8, num_xmm_avx512_regs = 0, xmm16_regnum = -1, num_ymm_avx512_regs = 0, ymm16_regnum = 0, xcr0 = 231, xsave_xcr0_offset = 464, xsave_layout = {sizeof_xsave = 0, avx_offset = 0, bndregs_offset = 0, bndcfg_offset = 0, k_offset = 0, zmm_h_offset = 0, zmm_offset = 0, pkru_offset = 0}, register_names = 0xf5a6a0 , ymm0h_regnum = -1, ymmh_register_names = 0x0, ymm16h_regnum = -1, ymm16h_register_names = 0x0, bnd0r_regnum = -1, bnd0_regnum = 0, bndcfgu_regnum = -1, mpx_register_names = 0x0, zmm0h_regnum = 63, k_register_names = 0xf5a900 , zmmh_register_names = 0xf5a8a0 , xmm_avx512_register_names = 0x0, ymm_avx512_register_names = 0x0, num_pkeys_regs = 0, pkru_regnum = -1, pkeys_register_names = 0x0, fsbase_regnum = -1, tdesc = 0x197b410, register_reggroup_p = 0x7a9578 , jb_pc_offset = 20, struct_return = pcc_struct_return, sigtramp_start = 0x0, sigtramp_end = 0x0, sigtramp_p = 0x7a99ae , sigcontext_addr = 0x7a9c52 , sc_reg_offset = 0x159fc60 , sc_num_regs = 16, sc_pc_offset = -1, sc_sp_offset = -1, i386_mmx_type = 0x0, i386_ymm_type = 0x0, i386_zmm_type = 0x0, i387_ext_type = 0x0, i386_bnd_type = 0x0, record_regmap = 0xf5d5a0 , i386_intx80_record = 0x7aa2fc , i386_sysenter_record = 0x7aa2fc , i386_syscall_record = 0x7aa2fc , fpregset = 0xf5b5c0 } Keith