Hey Guys,
Recently, I'm working on xmon. The xmon needs sysmap for symbol lookup,
however I don't know how to include sysmap to uImage. I looked the
kernel source code for a while and found the kernel image need contain
struct bi_record *rec. Everybody knows how to include this?
arch/ppc/kernel/setup.c::parse_bootinfo()
void parse_bootinfo(struct bi_record *rec)
{
if (rec == NULL || rec->tag != BI_FIRST)
return;
while (rec->tag != BI_LAST) {
ulong *data = rec->data;
printk(KERN_INFO "%s:*********** 0x%08lx\n",
__FUNCTION__, rec->tag);
switch (rec->tag) {
case BI_CMD_LINE:
strlcpy(cmd_line, (void *)data, sizeof(cmd_line));
break;
case BI_SYSMAP:
sysmap = (char *)((data[0] >= (KERNELBASE)) ?
data[0] :
(data[0]+KERNELBASE));
sysmap_size = data[1];
break;
#ifdef CONFIG_BLK_DEV_INITRD
case BI_INITRD:
initrd_start = data[0] + KERNELBASE;
initrd_end = data[0] + data[1] + KERNELBASE;
break;
#endif /* CONFIG_BLK_DEV_INITRD */
#ifdef CONFIG_PPC_MULTIPLATFORM
case BI_MACHTYPE:
_machine = data[0];
break;
#endif
case BI_MEMSIZE:
boot_mem_size = data[0];
break;
}
rec = (struct bi_record *)((ulong)rec + rec->size);
}
}
Thanks,
Gavin
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