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#define trace_reg_sysnum (20 * 4) /* PT_GR20 */
#define trace_reg_ret (28 * 4) /* PT_GR28 */
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 do_peekuser(long offset)
{
return do_ptrace(PTRACE_PEEKUSER, (void *)offset, NULL);
}
static long do_pokeuser(long offset, long val)
{
return do_ptrace(PTRACE_POKEUSER, (void *)offset, (void *)val);
}
#undef trace_get_regs
static long trace_get_regs(void *vregs)
{
trace_regs *regs = vregs;
size_t i;
for (i = 20; i < 29; ++i)
regs->gr[i] = do_peekuser(i * 4);
return 0;
}
#undef trace_set_regs
static long trace_set_regs(void *vregs)
{
trace_regs *regs = vregs;
size_t i;
for (i = 20; i < 29; ++i)
do_pokeuser(i * 4, regs->gr[i]);
return 0;
}
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