int drx_set(drxt *drx, int n, ut64 addr, int len, int rwx, int global) {
ut32 control = drx[DR_CONTROL];
if (n<0 || n>4) {
eprintf ("Invalid DRX index (0-4)\n");
return R_FALSE;
}
if (rwx<0 || rwx>3)
rwx = 0; // defaults to X
switch (len) {
case 1: len = 0; break;
case 2: len = 1<<2; break;
case 4: len = 3<<2; break;
case 8: len = 2<<2; break; // AMD64 only
default:
eprintf ("Invalid DRX length (%d) must be 1, 2, 4, 8 bytes\n", len);
return R_FALSE;
}
I386_DR_SET_RW_LEN (control, n, len|rwx);
if (global) {
I386_DR_GLOBAL_ENABLE (control, n);
control |= DR_GLOBAL_SLOWDOWN;
} else {
I386_DR_LOCAL_ENABLE (control, n);
control |= DR_LOCAL_SLOWDOWN; // XXX: This is wrong
}
control &= I386_DR_CONTROL_MASK;
drx[n] = addr;
drx[DR_CONTROL] = control;
eprintf ("SET 7 %x\n", control);
return R_TRUE;
}
int w32_drx_set(drxt *drx, int n, ut64 addr, int len, int rwx, int global) {
ut32 control = drx[DR_CONTROL];
if (n < 0 || n >= DR_NADDR) {
eprintf ("Invalid DRX index (0-%d)\n", DR_NADDR-1);
return false;
}
switch (rwx) {
case 1: rwx=0; break;
case 2: rwx=1; break;
case 4: rwx=2; break;
default:
rwx=0;
}
switch (len) {
case 1: len = 0; break;
case 2: len = 1<<2; break;
case 4: len = 3<<2; break;
case 8: len = 2<<2; break; // AMD64 only
default:
eprintf ("Invalid DRX length (%d) must be 1, 2, 4, 8 bytes\n", len);
return false;
}
I386_DR_SET_RW_LEN (control, n, len|rwx);
if (global) {
I386_DR_GLOBAL_ENABLE (control, n);
//control |= DR_GLOBAL_SLOWDOWN;
} else {
I386_DR_LOCAL_ENABLE (control, n);
//control |= DR_LOCAL_SLOWDOWN; // XXX: This is wrong
}
control &= I386_DR_CONTROL_MASK;
drx[n] = addr;
//eprintf ("drx[DR_CONTROL] = %x \n", drx[DR_CONTROL]);
drx[DR_CONTROL] = control;
//eprintf ("CONTROL = %x\n", control);
return true;
}