mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

target-i386: add API to get dump info

Browse Source 
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 <wency@cn.fujitsu.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
Wen Congyang 2012-05-07 12:08:56 +08:00 committed by Luiz Capitulino
parent 90166b71c4
commit 25ae9c1d8b
3 changed files with 64 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
cpu-all.h
View File

@ -23,6 +23,7 @@
#include "qemu-tls.h"
#include "cpu-common.h"
#include "memory_mapping.h"
#include "dump.h"
/* some important defines:
*
@ -551,6 +552,7 @@ int cpu_write_elf64_qemunote(write_core_dump_function f, CPUArchState *env,
void *opaque);
int cpu_write_elf32_qemunote(write_core_dump_function f, CPUArchState *env,
void *opaque);
int cpu_get_dump_info(ArchDumpInfo *info);
#else
static inline int cpu_write_elf64_note(write_core_dump_function f,
CPUArchState *env, int cpuid,
@ -579,6 +581,11 @@ 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 */

23
dump.h Normal file
View File

@ -0,0 +1,23 @@
/*
* QEMU dump
*
* Copyright Fujitsu, Corp. 2011, 2012
*
* Authors:
* Wen Congyang <wency@cn.fujitsu.com>
*
* 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

34
target-i386/arch_dump.c
View File

@ -13,6 +13,7 @@
#include "cpu.h"
#include "cpu-all.h"
#include "dump.h"
#include "elf.h"
#ifdef TARGET_X86_64
@ -380,3 +381,36 @@ int cpu_write_elf32_qemunote(write_core_dump_function f, CPUArchState *env,
{
return cpu_write_qemu_note(f, env, 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;
}