// FIXME: There should be a destructor for this function to free env and info
void GetBackTrace(address_t* ipStackBuffer, int iTotalDepth, int iSkipLevel)
{
uint64_t ip;
int status;
int index = 0;
int nPos = 0;
if (!env) {
env = uwx_init();
info = uwx_self_init_info(env);
status = uwx_register_callbacks(env, (intptr_t)info, uwx_self_copyin,
uwx_self_lookupip);
if (status != UWX_OK) {
env = NULL;
return ;
}
}
status = uwx_self_init_context(env);
if (status != UWX_OK) {
//hk_printf("uwx_self_init_context() error\n");
return ;
}
for(;;) {
if (index >= iTotalDepth)
break;
if (nPos++ >= iSkipLevel + iTotalDepth)
break;
status = uwx_get_reg(env, UWX_REG_IP, &ip);
if (status != UWX_OK)
break;
if (nPos > iSkipLevel)
ipStackBuffer[index++] = (address_t)ip;
status = uwx_step(env);
if (status != UWX_OK)
break;
}
// seal the array
if(index < iTotalDepth)
{
ipStackBuffer[index] = 0;
}
return ;
}
int f4(void)
{
int status;
int foo[10];
f5(foo);
uwx_self_init_context(uenv);
printf("In f4():\n");
dump_context((uint64_t *)uenv);
for (;;) {
status = uwx_step(uenv);
printf("uwx_step returned %d\n", status);
if (status != UWX_OK)
break;
printf("After step:\n");
dump_context((uint64_t *)uenv);
}
return 0;
}