static int hello_init(void)
{
uint64_t a = 1048576;
uint32_t b = 4096;
void (* func_p)(void);
/* unsigned int cpu = get_cpu();
struct module *mod;
printk("this module: %p==%p\n", &__this_module, THIS_MODULE );
printk("module state: %d\n", THIS_MODULE->state );
printk("module name: %s\n", THIS_MODULE->name );
list_for_each_entry(mod, *(&THIS_MODULE->list.prev), list )
printk(KERN_ALERT "module name: %s\n", mod->name );*/
func_p = __symbol_get("hello_func");
printk("func_p's addr is %p\n", func_p);
if(!func_p){
printk("func can not find!\n");
}
else{
__symbol_put("hello_func");
func_p();
printk("symbol exist. p=%p\n", func_p);
}
printk("a/b = %u.\n", a/b);
return 0;
}
void
st_foreach(struct stack *stp, void (*func_p) (struct st_node *np))
{
struct st_node *np;
assert((stp != NULL) &&
(func_p != NULL) &&
!st_empty(stp));
np = stp->top;
while (np != NULL) {
func_p(np);
np = np->next;
}
}
void sxc_debug(FILE *fp) //调试主监听程序
{
char input[100],var[100];
char cmd;
int para = 0;
int i = 0;
de_flag = 0;
para = 0;
while (1)
{
gets(input);
if (strcmp(input, "\0") != 0)
break;
}
cmd = input[0];
switch (cmd)
{
case 'h': runcode = 0; show_help(); break;
case 'b': runcode = 0; if (input[1] != ' ')
show_help();
else
{
i = 2;
while (input[i] != '\n' && input[i++] != '\0')
{
if (input[i - 1] >= 48 && input[i - 1] <= 57)
{
para = para*10+(input[i - 1] - '0');
}
else
{
show_help();
break;
}
}
if (de_flag == 0)
{
func_b(para,0);
}
}
break;
case 'n': runcode = 1; if (input[1] != '\0') show_help(); else func_n(fp); break;
case 'r': runcode = 1; if (input[1] != '\0') show_help(); else sxc(fp); break;
case 'p': runcode = 0; if (input[1] != ' ' && input[1] != '\n' && input[1] != '\0')
show_help();
else if (input[1] == '\0')
func_p("-a");
else
func_p(input + 2);
break;
case 'l': runcode = 0; if (input[1] != ' ' && input[1] != '\n' && input[1] != '\0')
show_help();
else if (input[1] == '\0')
func_l(fp, -1);
else
{
i = 2;
while (input[i] != '\n' && input[i++] != '\0')
{
if (input[i - 1] >= 48 && input[i - 1] <= 57)
{
para = para * 10 + (input[i - 1] - '0');
}
else
{
show_help();
break;
}
}
if (de_flag == 0)
{
func_l(fp, para);
}
}
break;
case 'd': runcode = 0; if (input[1] != ' ')
show_help();
else
{
i = 2;
while (input[i] != '\n' && input[i++] != '\0')
{
if (input[i - 1] >= 48 && input[i - 1] <= 57)
{
para = para * 10 + (input[i - 1] - '0');
}
else
{
show_help();
break;
}
}
if (de_flag == 0)
{
func_d(para,0);
}
}
break;
case 's': runcode = 0; if (input[1] != '\0') show_help(); else func_s(); break;
case 'k':if (input[1] != '\0') show_help(); else func_k(); break;
case 'q':if (input[1] != '\0') show_help(); else func_q(fp); break;
default:show_help(); break;
}
}
test (void (*func_p) (void))
{
func_p ();
}
void
foo (void)
{
if (func_p != &func || func_p () != 0xbadbeef)
__builtin_abort ();
}
void call_func(void (*func_p)(void)) {
func_p();
}
