1 | #include <lwp.h> |
2 | #include <stddef.h> |
3 | #include <stdlib.h> |
4 | |
5 | static void bar(char *boom) { |
6 | char F = 'b'; |
7 | *boom = 47; // Frame bar |
8 | } |
9 | |
10 | static void foo(char *boom, void (*boomer)(char *)) { |
11 | char F = 'f'; |
12 | boomer(boom); // Frame foo |
13 | } |
14 | |
15 | void lwp_main(void *unused) { |
16 | char F = 'l'; |
17 | foo(boom: 0, boomer: bar); // Frame lwp_main |
18 | } |
19 | |
20 | int main(int argc, char **argv) { |
21 | ucontext_t uc; |
22 | lwpid_t lid; |
23 | static const size_t ssize = 16 * 1024; |
24 | void *stack; |
25 | |
26 | stack = malloc(size: ssize); |
27 | _lwp_makecontext(&uc, lwp_main, NULL, NULL, stack, ssize); |
28 | _lwp_create(&uc, 0, &lid); |
29 | _lwp_wait(lid, NULL); |
30 | } |
31 | |