gdbstub: move breakpoint logic to accel ops

As HW virtualization requires specific support to handle breakpoints
lets push out special casing out of the core gdbstub code and into
AccelOpsClass. This will make it easier to add other accelerator
support and reduces some of the stub shenanigans.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Mads Ynddal <mads@ynddal.dk>
Message-Id: <20220929114231.583801-45-alex.bennee@linaro.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/gdbstub/softmmu.c b/gdbstub/softmmu.c
new file mode 100644
index 0000000000..4e73890379
--- /dev/null
+++ b/gdbstub/softmmu.c
@@ -0,0 +1,42 @@
+/*
+ * gdb server stub - softmmu specific bits
+ *
+ * Debug integration depends on support from the individual
+ * accelerators so most of this involves calling the ops helpers.
+ *
+ * Copyright (c) 2022 Linaro Ltd
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "exec/gdbstub.h"
+#include "exec/hwaddr.h"
+#include "sysemu/cpus.h"
+#include "internals.h"
+
+int gdb_breakpoint_insert(CPUState *cs, int type, hwaddr addr, hwaddr len)
+{
+    const AccelOpsClass *ops = cpus_get_accel();
+    if (ops->insert_breakpoint) {
+        return ops->insert_breakpoint(cs, type, addr, len);
+    }
+    return -ENOSYS;
+}
+
+int gdb_breakpoint_remove(CPUState *cs, int type, hwaddr addr, hwaddr len)
+{
+    const AccelOpsClass *ops = cpus_get_accel();
+    if (ops->remove_breakpoint) {
+        return ops->remove_breakpoint(cs, type, addr, len);
+    }
+    return -ENOSYS;
+}
+
+void gdb_breakpoint_remove_all(CPUState *cs)
+{
+    const AccelOpsClass *ops = cpus_get_accel();
+    if (ops->remove_all_breakpoints) {
+        ops->remove_all_breakpoints(cs);
+    }
+}