exec: Declare CPUBreakpoint/CPUWatchpoint type in 'breakpoint.h' header

The CPUBreakpoint and CPUWatchpoint structures are declared
in "hw/core/cpu.h", which contains declarations related to
CPUState and CPUClass. Some source files only require the
BP/WP definitions and don't need to pull in all CPU* API.
In order to simplify, create a new "exec/breakpoint.h" header.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20240418192525.97451-3-philmd@linaro.org>

include/exec/breakpoint.h

@@ -0,0 +1,30 @@
+/*
+ * QEMU breakpoint & watchpoint definitions
+ *
+ * Copyright (c) 2012 SUSE LINUX Products GmbH
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+#ifndef EXEC_BREAKPOINT_H
+#define EXEC_BREAKPOINT_H
+
+#include "qemu/queue.h"
+#include "exec/vaddr.h"
+#include "exec/memattrs.h"
+
+typedef struct CPUBreakpoint {
+    vaddr pc;
+    int flags; /* BP_* */
+    QTAILQ_ENTRY(CPUBreakpoint) entry;
+} CPUBreakpoint;
+
+typedef struct CPUWatchpoint {
+    vaddr vaddr;
+    vaddr len;
+    vaddr hitaddr;
+    MemTxAttrs hitattrs;
+    int flags; /* BP_* */
+    QTAILQ_ENTRY(CPUWatchpoint) entry;
+} CPUWatchpoint;
+
+#endif