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[Qemu-devel] [RFC][PATCH 09/14 v9] target-i386: add API to get dump info
From: |
Wen Congyang |
Subject: |
[Qemu-devel] [RFC][PATCH 09/14 v9] target-i386: add API to get dump info |
Date: |
Wed, 14 Mar 2012 10:09:54 +0800 |
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 |
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 <address@hidden>
---
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 <address@hidden>
+ *
+ * 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;
+}
--
1.7.1
- Re: [Qemu-devel] [RFC][PATCH 05/14 v9] Add API to get memory mapping, (continued)
- [Qemu-devel] [RFC][PATCH 09/14 v9] target-i386: add API to get dump info,
Wen Congyang <=
- [Qemu-devel] [RFC][PATCH 10/14 v9] make gdb_id() generally avialable, Wen Congyang, 2012/03/13
- [Qemu-devel] [RFC][PATCH 11/14 v9] introduce a new monitor command 'dump' to dump guest's memory, Wen Congyang, 2012/03/13
- Re: [Qemu-devel] [RFC][PATCH 11/14 v9] introduce a new monitor command 'dump' to dump guest's memory, Luiz Capitulino, 2012/03/14
- Re: [Qemu-devel] [RFC][PATCH 11/14 v9] introduce a new monitor command 'dump' to dump guest's memory, Wen Congyang, 2012/03/14
- Re: [Qemu-devel] [RFC][PATCH 11/14 v9] introduce a new monitor command 'dump' to dump guest's memory, Luiz Capitulino, 2012/03/15
- Re: [Qemu-devel] [RFC][PATCH 11/14 v9] introduce a new monitor command 'dump' to dump guest's memory, Wen Congyang, 2012/03/16
- Re: [Qemu-devel] [RFC][PATCH 11/14 v9] introduce a new monitor command 'dump' to dump guest's memory, Wen Congyang, 2012/03/18
- Re: [Qemu-devel] [RFC][PATCH 11/14 v9] introduce a new monitor command 'dump' to dump guest's memory, Wen Congyang, 2012/03/19
- Re: [Qemu-devel] [RFC][PATCH 11/14 v9] introduce a new monitor command 'dump' to dump guest's memory, Luiz Capitulino, 2012/03/19
- Re: [Qemu-devel] [RFC][PATCH 11/14 v9] introduce a new monitor command 'dump' to dump guest's memory, HATAYAMA Daisuke, 2012/03/15