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#include <common/test.h>
#include <common/cpio.h>
START(pid, tid, d0, d1, d2, d3)
{
UNUSED(pid);
UNUSED(tid);
UNUSED(d0);
UNUSED(d1);
UNUSED(d2);
UNUSED(d3);
check(pid == 0, "illegal pid for init\n");
id_t our_id = 0;
printf("forking\n");
id_t new_id = sys_fork(&our_id);
check(new_id >= 0, "error from fork\n");
if (new_id == 0) {
printf("hello from child with pid %ld\n", (long int)our_id);
printf("finding exec in cpio archive %lx...\n", d2);
struct cpio_header *cp = cpio_find_file((const void *)d2,
"exec", sizeof("exec") - 1);
check(cp, "couldn't find exec?\n");
long name_len = convnum(cp->c_namesize, 8, 16);
uintptr_t exec = (uintptr_t)(cp) + align_up(sizeof(struct cpio_header) + name_len, 4);
printf("found exec at %lx\n", exec);
printf("doing exec...\n");
sys_exec(exec, 0);
error("exec failed\n");
}
printf("hello from parent\n");
sys_swap(new_id);
check(0, "failed swapping to child\n");
}
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