const char *try_demangle_noprefix(const char *mangled)
{
const char *demangled = try_demangle(mangled);
if (strncmp(demangled, "typeinfo for ", 13) == 0) {
return demangled + 13;
} else if (strncmp(demangled, "vtable for ", 11) == 0) {
return demangled + 11;
} else {
return demangled;
}
}
func_t *func_register(void *pfunc)
{
func_t *func;
/* skip if function is already registered */
for (func = funcs; func != funcs + num_funcs; ++func) {
if (func->func_addr == (uintptr_t)pfunc) {
return func;
}
}
assert(num_funcs < (sizeof(funcs) / sizeof(*funcs)));
func = funcs + num_funcs++;
func->func_addr = (uintptr_t)pfunc;
symbol_t sym;
if (!symtab_func_addr_abs(&sym, (uintptr_t)pfunc)) {
errx(1, "symtab_func_addr_abs_anylib(0x%08x) failed", func->func_addr);
}
func->name = sym.name;
func->name_demangled = try_demangle(sym.name);
func->func_size = sym.size;
func->has_detour = false;
void *buf;
if ((buf = mmap(NULL, PAGE_SIZE, PROT_READ | PROT_WRITE | PROT_EXEC,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0)) == MAP_FAILED) {
err(1, "mmap for func '%s' trampoline failed", func->name_demangled);
}
func->trampoline_addr = (uintptr_t)buf;
func->trampoline_size = PAGE_SIZE;
//pr_debug("func_register %s:\n", func->name_demangled);
//pr_debug(" addr %08x\n size %08x\n", func->func_addr, func->func_size);
/*func_dump(func);*/
return func;
}
