From patchwork Wed Mar 14 02:09:54 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wen Congyang X-Patchwork-Id: 146527 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id AF3BAB6FA4 for ; Wed, 14 Mar 2012 13:08:16 +1100 (EST) Received: from localhost ([::1]:34094 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S7ddO-0007b9-2h for incoming@patchwork.ozlabs.org; Tue, 13 Mar 2012 22:08:14 -0400 Received: from eggs.gnu.org ([208.118.235.92]:48025) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S7ddF-0007ap-UZ for qemu-devel@nongnu.org; Tue, 13 Mar 2012 22:08:08 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1S7ddD-0006s9-WA for qemu-devel@nongnu.org; Tue, 13 Mar 2012 22:08:05 -0400 Received: from [222.73.24.84] (port=53286 helo=song.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S7ddD-0006rv-Ku for qemu-devel@nongnu.org; Tue, 13 Mar 2012 22:08:03 -0400 X-IronPort-AV: E=Sophos;i="4.73,580,1325433600"; d="scan'208";a="4527952" Received: from unknown (HELO tang.cn.fujitsu.com) ([10.167.250.3]) by song.cn.fujitsu.com with ESMTP; 14 Mar 2012 10:07:54 +0800 Received: from mailserver.fnst.cn.fujitsu.com (tang.cn.fujitsu.com [127.0.0.1]) by tang.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id q2E280jL016424; Wed, 14 Mar 2012 10:08:00 +0800 Received: from [10.167.225.226] ([10.167.225.226]) by mailserver.fnst.cn.fujitsu.com (Lotus Domino Release 8.5.1FP4) with ESMTP id 2012031410055893-1012346 ; Wed, 14 Mar 2012 10:05:58 +0800 Message-ID: <4F5FFDF2.90906@cn.fujitsu.com> Date: Wed, 14 Mar 2012 10:09:54 +0800 From: Wen Congyang User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100413 Fedora/3.0.4-2.fc13 Thunderbird/3.0.4 MIME-Version: 1.0 To: qemu-devel , Jan Kiszka , Dave Anderson , HATAYAMA Daisuke , Luiz Capitulino , Eric Blake References: <4F5FFC63.3060300@cn.fujitsu.com> In-Reply-To: <4F5FFC63.3060300@cn.fujitsu.com> X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.1FP4|July 25, 2010) at 2012-03-14 10:05:59, Serialize by Router on mailserver/fnst(Release 8.5.1FP4|July 25, 2010) at 2012-03-14 10:05:59, Serialize complete at 2012-03-14 10:05:59 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 222.73.24.84 Subject: [Qemu-devel] [RFC][PATCH 09/14 v9] target-i386: add API to get dump info X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Dump info contains: endian, class and architecture. The next patch will use these information to create vmcore. Note: on x86 box, the class is ELFCLASS64 if the memory is larger than 4G. Signed-off-by: Wen Congyang --- cpu-all.h | 7 +++++++ dump.h | 23 +++++++++++++++++++++++ target-i386/arch_dump.c | 34 ++++++++++++++++++++++++++++++++++ 3 files changed, 64 insertions(+), 0 deletions(-) create mode 100644 dump.h diff --git a/cpu-all.h b/cpu-all.h index f30c822..b4a28d9 100644 --- a/cpu-all.h +++ b/cpu-all.h @@ -23,6 +23,7 @@ #include "qemu-tls.h" #include "cpu-common.h" #include "memory_mapping.h" +#include "dump.h" /* some important defines: * @@ -543,6 +544,7 @@ int cpu_write_elf64_qemunote(write_core_dump_function f, CPUState *env, target_phys_addr_t *offset, void *opaque); int cpu_write_elf32_qemunote(write_core_dump_function f, CPUState *env, target_phys_addr_t *offset, void *opaque); +int cpu_get_dump_info(ArchDumpInfo *info); #else static inline int cpu_write_elf64_note(write_core_dump_function f, CPUState *env, int cpuid, @@ -573,6 +575,11 @@ static inline int cpu_write_elf32_qemunote(write_core_dump_function f, { return -1; } + +static inline int cpu_get_dump_info(ArchDumpInfo *info) +{ + return -1; +} #endif #endif /* CPU_ALL_H */ diff --git a/dump.h b/dump.h new file mode 100644 index 0000000..28340cf --- /dev/null +++ b/dump.h @@ -0,0 +1,23 @@ +/* + * QEMU dump + * + * Copyright Fujitsu, Corp. 2011, 2012 + * + * Authors: + * Wen Congyang + * + * This work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + * + */ + +#ifndef DUMP_H +#define DUMP_H + +typedef struct ArchDumpInfo { + int d_machine; /* Architecture */ + int d_endian; /* ELFDATA2LSB or ELFDATA2MSB */ + int d_class; /* ELFCLASS32 or ELFCLASS64 */ +} ArchDumpInfo; + +#endif diff --git a/target-i386/arch_dump.c b/target-i386/arch_dump.c index 274bbec..1518df7 100644 --- a/target-i386/arch_dump.c +++ b/target-i386/arch_dump.c @@ -13,6 +13,7 @@ #include "cpu.h" #include "cpu-all.h" +#include "dump.h" #include "elf.h" #ifdef TARGET_X86_64 @@ -397,3 +398,36 @@ int cpu_write_elf32_qemunote(write_core_dump_function f, CPUState *env, { return cpu_write_qemu_note(f, env, offset, opaque, 0); } + +int cpu_get_dump_info(ArchDumpInfo *info) +{ + bool lma = false; + RAMBlock *block; + +#ifdef TARGET_X86_64 + lma = !!(first_cpu->hflags & HF_LMA_MASK); +#endif + + if (lma) { + info->d_machine = EM_X86_64; + } else { + info->d_machine = EM_386; + } + info->d_endian = ELFDATA2LSB; + + if (lma) { + info->d_class = ELFCLASS64; + } else { + info->d_class = ELFCLASS32; + + QLIST_FOREACH(block, &ram_list.blocks, next) { + if (block->offset + block->length > UINT_MAX) { + /* The memory size is greater than 4G */ + info->d_class = ELFCLASS64; + break; + } + } + } + + return 0; +}