1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <fbos/init.h>
#include <fbos/sched.h>
#include <fbos/mm.h>
unsigned long stack[STACK_SIZE / sizeof(unsigned long)];
struct task_struct tasks[4] = {
[TASK_INIT] = { .stack = stack, .entry_addr = NULL, },
[TASK_FIZZ] = { .stack = stack, .entry_addr = NULL, },
[TASK_BUZZ] = { .stack = stack, .entry_addr = NULL, },
[TASK_FIZZBUZZ] = { .stack = stack, .entry_addr = NULL, },
};
int main(void)
{
FILE *fh = fopen("./usr/initramfs.cpio", "rb");
assert(fh);
fseek(fh, 0, SEEK_END);
long fsize = ftell(fh);
rewind(fh);
unsigned char *contents = malloc((unsigned long)fsize + 1);
fread(contents, (unsigned long)fsize, 1, fh);
fclose(fh);
contents[fsize] = 0;
extract_initrd(contents, (uint64_t)fsize, tasks);
free(contents);
#ifdef __DEBUG__
assert(((uintptr_t)tasks[0].entry_addr & 0xfff) == 0xbe8);
assert(((uintptr_t)tasks[1].entry_addr & 0xfff) == 0x5bc);
assert(((uintptr_t)tasks[2].entry_addr & 0xfff) == 0x7b4);
assert(((uintptr_t)tasks[3].entry_addr & 0xfff) == 0x180);
#else
assert(tasks[0].entry_addr);
assert(tasks[1].entry_addr);
assert(tasks[2].entry_addr);
assert(tasks[3].entry_addr);
#endif
exit(0);
}
|