Re: [Qemu-devel] [RFC][PATCH 06/14 v7] target-i386: Add API to write cpu status to core file

[Wen Congyang <wency@cn.fujitsu.com>]

At 03/01/2012 01:10 PM, HATAYAMA Daisuke Wrote:
> From: Wen Congyang <wency@cn.fujitsu.com>
> Subject: [RFC][PATCH 06/14 v7] target-i386: Add API to write cpu status to core file
> Date: Thu, 01 Mar 2012 10:48:17 +0800
> 
>> +int cpu_write_elf64_qemunote(write_core_dump_function f, CPUState *env,
>> +                             target_phys_addr_t *offset, void *opaque)
>> +{
>> +    QEMUCPUState state;
>> +    Elf64_Nhdr *note;
>> +    char *buf;
>> +    int descsz, note_size, name_size = 5;
>> +    const char *name = "QEMU";
>> +    int ret;
>> +
>> +    qemu_get_cpustate(&state, env);
>> +
>> +    descsz = sizeof(state);
>> +    note_size = ((sizeof(Elf32_Nhdr) + 3) / 4 + (name_size + 3) / 4 +
>> +                (descsz + 3) / 4) * 4;
>> +    note = g_malloc(note_size);
>> +
>> +    memset(note, 0, note_size);
>> +    note->n_namesz = cpu_to_le32(name_size);
>> +    note->n_descsz = cpu_to_le32(descsz);
>> +    note->n_type = 0;
>> +    buf = (char *)note;
>> +    buf += ((sizeof(Elf32_Nhdr) + 3) / 4) * 4;
>> +    memcpy(buf, name, name_size);
>> +    buf += ((name_size + 3) / 4) * 4;
>> +    memcpy(buf, &state, sizeof(state));
> 
> x86_64_write_elf64_note() and x86_write_elf64_note() does the same
> processing for note data. Is it better to do this in helper functions
> in common?

I forgot to merge them. I will fix it.

Thanks
Wen Congyang

> 
> Thanks.
> HATAYAMA, Daisuke
> 
>