diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c
index 1e6f8978b5..ef506faa8e 100644
--- a/gdbstub/gdbstub.c
+++ b/gdbstub/gdbstub.c
@@ -41,8 +41,6 @@
 #include "hw/boards.h"
 #endif
 
-#define MAX_PACKET_LENGTH 4096
-
 #include "qemu/sockets.h"
 #include "sysemu/hw_accel.h"
 #include "sysemu/runstate.h"
@@ -325,23 +323,6 @@ typedef struct GDBRegisterState {
     struct GDBRegisterState *next;
 } GDBRegisterState;
 
-typedef struct GDBProcess {
-    uint32_t pid;
-    bool attached;
-
-    char target_xml[1024];
-} GDBProcess;
-
-enum RSState {
-    RS_INACTIVE,
-    RS_IDLE,
-    RS_GETLINE,
-    RS_GETLINE_ESC,
-    RS_GETLINE_RLE,
-    RS_CHKSUM1,
-    RS_CHKSUM2,
-};
-
 #ifdef CONFIG_USER_ONLY
 typedef struct {
     int fd;
@@ -357,29 +338,6 @@ typedef struct {
 static GDBSystemState gdbserver_system_state;
 #endif
 
-typedef struct GDBState {
-    bool init;       /* have we been initialised? */
-    CPUState *c_cpu; /* current CPU for step/continue ops */
-    CPUState *g_cpu; /* current CPU for other ops */
-    CPUState *query_cpu; /* for q{f|s}ThreadInfo */
-    enum RSState state; /* parsing state */
-    char line_buf[MAX_PACKET_LENGTH];
-    int line_buf_index;
-    int line_sum; /* running checksum */
-    int line_csum; /* checksum at the end of the packet */
-    GByteArray *last_packet;
-    int signal;
-    bool multiprocess;
-    GDBProcess *processes;
-    int process_num;
-    char syscall_buf[256];
-    gdb_syscall_complete_cb current_syscall_cb;
-    GString *str_buf;
-    GByteArray *mem_buf;
-    int sstep_flags;
-    int supported_sstep_flags;
-} GDBState;
-
 static GDBState gdbserver_state;
 
 static void init_gdbserver_state(void)
diff --git a/gdbstub/internals.h b/gdbstub/internals.h
index 7df0e11c47..32daaf73a3 100644
--- a/gdbstub/internals.h
+++ b/gdbstub/internals.h
@@ -11,6 +11,56 @@
 
 #include "exec/cpu-common.h"
 
+#define MAX_PACKET_LENGTH 4096
+
+/*
+ * Shared structures and definitions
+ */
+
+typedef struct GDBProcess {
+    uint32_t pid;
+    bool attached;
+
+    char target_xml[1024];
+} GDBProcess;
+
+enum RSState {
+    RS_INACTIVE,
+    RS_IDLE,
+    RS_GETLINE,
+    RS_GETLINE_ESC,
+    RS_GETLINE_RLE,
+    RS_CHKSUM1,
+    RS_CHKSUM2,
+};
+
+typedef struct GDBState {
+    bool init;       /* have we been initialised? */
+    CPUState *c_cpu; /* current CPU for step/continue ops */
+    CPUState *g_cpu; /* current CPU for other ops */
+    CPUState *query_cpu; /* for q{f|s}ThreadInfo */
+    enum RSState state; /* parsing state */
+    char line_buf[MAX_PACKET_LENGTH];
+    int line_buf_index;
+    int line_sum; /* running checksum */
+    int line_csum; /* checksum at the end of the packet */
+    GByteArray *last_packet;
+    int signal;
+    bool multiprocess;
+    GDBProcess *processes;
+    int process_num;
+    char syscall_buf[256];
+    gdb_syscall_complete_cb current_syscall_cb;
+    GString *str_buf;
+    GByteArray *mem_buf;
+    int sstep_flags;
+    int supported_sstep_flags;
+} GDBState;
+
+/*
+ * Break/Watch point support - there is an implementation for softmmu
+ * and user mode.
+ */
 bool gdb_supports_guest_debug(void);
 int gdb_breakpoint_insert(CPUState *cs, int type, vaddr addr, vaddr len);
 int gdb_breakpoint_remove(CPUState *cs, int type, vaddr addr, vaddr len);