libsandbox/trace/linux/hppa.c


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

#define trace_sysnum_puser (20 * 4)	/* PT_GR20 */

static long trace_raw_ret(void *vregs)
{
	trace_regs *regs = vregs;
	return regs->gr[28];
}

static void trace_set_ret(void *vregs, int err)
{
	do_pokeuser(28 * 4 /* PT_GR28 */, -err);
}

static unsigned long trace_arg(void *vregs, int num)
{
	trace_regs *regs = vregs;
	switch (num) {
		case 1: return regs->gr[26];
		case 2: return regs->gr[25];
		case 3: return regs->gr[24];
		case 4: return regs->gr[23];
		case 5: return regs->gr[22];
		case 6: return regs->gr[21];
		default: return -1;
	}
}

static long trace_get_regs(void *vregs)
{
	trace_regs *regs = vregs;
	size_t i;
	for (i = 21; i < 29; ++i)
		regs->gr[i] = do_peekuser(i * 4);
	return 0;
}
#define trace_get_regs trace_get_regs