thermosphere: add breakpoint/watchpoint enable/reset code

thermosphere/src/breakpoints.c

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2019 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "breakpoints.h"
+#include "utils.h"
+#include "sysreg.h"
+#include "arm.h"
+
+void enableAndResetBreakpoints(void)
+{
+    SET_SYSREG(mdscr_el1, GET_SYSREG(mdscr_el1) | MDSCR_EL1_MDE);
+
+    // 20 for watchpoints
+    size_t num = ((GET_SYSREG(id_aa64dfr0_el1) >> 12) & 0xF) + 1;
+    initBreakpointRegs(num);
+}