From: Wen Congyang <we...@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?
Thanks.
HATAYAMA, Daisuke
