浅谈在linux kernel中打印函数调用的堆栈的方法

void dump_stack(void)
{
 printk(KERN_NOTICE
 "This architecture does not implement dump_stack()/n");
}
__backtrace()的定义在~/kernel/arch/arm/lib/backtrace.S中
 
ENTRY(__backtrace)
 mov r1, #0x10
 mov r0, fp

backtrace
backtrace_symbols

void *bt[20]; 
 char **strings; 
 size_t sz;
 sz = backtrace(bt, 20); 
 strings = backtrace_symbols(bt, sz); 
    for(i = 0; i < sz; ++i) 
        fprintf(stderr, "%s/n", strings[i]);