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 <we...@cn.fujitsu.com> --- 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 <we...@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 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