gdbstub: move GDBState to shared internals header

We are about to split softmmu and user mode helpers into different
files. To facilitate this we will need to share access to the GDBState
between those files.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

Message-Id: <20230302190846.2593720-7-alex.bennee@linaro.org>
Message-Id: <20230303025805.625589-7-richard.henderson@linaro.org>

1 files changed, 50 insertions, 0 deletions

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);