void
cos_init(void *d)
{
cgraph_init();
}
int cmd_cgraph(char **arg)
{
char *offset_text, *len_text, *addr_text;;
address_t offset, len, addr;
uint8_t *memory;
struct call_graph graph;
/* Figure out what the arguments are */
offset_text = get_arg(arg);
len_text = get_arg(arg);
addr_text = get_arg(arg);
if (!(offset_text && len_text)) {
printc_err("cgraph: offset and length must be "
"specified\n");
return -1;
}
if (expr_eval(offset_text, &offset) < 0) {
printc_err("cgraph: invalid offset: %s\n", offset_text);
return -1;
}
offset &= ~1;
if (expr_eval(len_text, &len) < 0) {
printc_err("cgraph: invalid length: %s\n", len_text);
return -1;
}
len &= ~1;
if (addr_text && expr_eval(addr_text, &addr) < 0) {
printc_err("cgraph: invalid address: %s\n", addr_text);
return -1;
}
/* Grab the memory to be analysed */
memory = malloc(len);
if (!memory) {
printc_err("cgraph: couldn't allocate memory: %s\n",
last_error());
return -1;
}
if (device_readmem(offset, memory, len) < 0) {
printc_err("cgraph: couldn't fetch memory\n");
free(memory);
return -1;
}
/* Produce and display the call graph */
if (cgraph_init(offset, len, memory, &graph) < 0) {
printc_err("cgraph: couldn't build call graph\n");
free(memory);
return -1;
}
free(memory);
if (addr_text)
cgraph_func_info(&graph, addr);
else
cgraph_summary(&graph);
cgraph_destroy(&graph);
return 0;
}