dmnt: first pass at breakpoints/watchpoints

stratosphere/dmnt.gen2/source/dmnt2_breakpoint_manager.cpp

@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2018-2020 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 <stratosphere.hpp>
+#include "dmnt2_breakpoint_manager.hpp"
+#include "dmnt2_debug_process.hpp"
+#include "dmnt2_debug_log.hpp"
+
+namespace ams::dmnt {
+
+    BreakPointManager::BreakPointManager(DebugProcess *debug_process) : BreakPointManagerBase(debug_process) {
+        /* ... */
+    }
+
+    void BreakPointManager::ClearStep() {
+        BreakPoint *bp = nullptr;
+        for (size_t i = 0; (bp = static_cast<BreakPoint *>(this->GetBreakPoint(i))) != nullptr; ++i) {
+            if (bp->m_in_use && bp->m_is_step) {
+                AMS_DMNT2_GDB_LOG_DEBUG("BreakPointManager::ClearStep %p 0x%lx (idx=%zu)\n", bp, bp->m_address, i);
+                bp->Clear(m_debug_process);
+            }
+        }
+    }
+
+    Result BreakPointManager::SetBreakPoint(uintptr_t address, size_t size, bool is_step) {
+        /* Get a free breakpoint. */
+        BreakPoint *bp = static_cast<BreakPoint *>(this->GetFreeBreakPoint());
+
+        /* Set the breakpoint. */
+        Result result = svc::ResultOutOfHandles();
+        if (bp != nullptr) {
+            result = bp->Set(m_debug_process, address, size, is_step);
+        }
+
+        if (R_FAILED(result)) {
+            AMS_DMNT2_GDB_LOG_DEBUG("BreakPointManager::SetBreakPoint %p 0x%lx !!! Fail 0x%08x !!!\n", bp, bp->m_address, result.GetValue());
+        }
+
+        return result;
+    }
+
+}