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#define trace_reg_ret regs[0] /* x0 */
#undef trace_get_regs
static long trace_get_regs(void *vregs)
{
struct iovec iov_regs = {
.iov_base = vregs,
.iov_len = sizeof(trace_regs),
};
return do_ptrace(PTRACE_GETREGSET, (void *)(uintptr_t)NT_PRSTATUS, &iov_regs);
}
#undef trace_set_regs
static long trace_set_regs(void *vregs)
{
struct iovec iov_regs = {
.iov_base = vregs,
.iov_len = sizeof(trace_regs),
};
return do_ptrace(PTRACE_SETREGSET, (void *)(uintptr_t)NT_PRSTATUS, &iov_regs);
}
static unsigned long trace_arg(void *vregs, int num)
{
trace_regs *regs = vregs;
if (num < 7)
return regs->regs[num - 1]; /* x0 - x5 */
else
return -1;
}
static int trace_get_sysnum(void *vregs)
{
int nr;
struct iovec iov_nr = {
.iov_base = &nr,
.iov_len = sizeof(nr),
};
do_ptrace(PTRACE_GETREGSET, (void *)(uintptr_t)NT_ARM_SYSTEM_CALL, &iov_nr);
return nr;
}
static void trace_set_sysnum(void *vregs, int nr)
{
struct iovec iov_nr = {
.iov_base = &nr,
.iov_len = sizeof(nr),
};
do_ptrace(PTRACE_SETREGSET, (void *)(uintptr_t)NT_ARM_SYSTEM_CALL, &iov_nr);
}
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