1 #ifndef GDBSTUB_H 2 #define GDBSTUB_H 3 4 #define DEFAULT_GDBSTUB_PORT "1234" 5 6 /* GDB breakpoint/watchpoint types */ 7 #define GDB_BREAKPOINT_SW 0 8 #define GDB_BREAKPOINT_HW 1 9 #define GDB_WATCHPOINT_WRITE 2 10 #define GDB_WATCHPOINT_READ 3 11 #define GDB_WATCHPOINT_ACCESS 4 12 13 #ifdef NEED_CPU_H 14 typedef void (*gdb_syscall_complete_cb)(CPUState *cpu, 15 target_ulong ret, target_ulong err); 16 17 void gdb_do_syscall(gdb_syscall_complete_cb cb, const char *fmt, ...); 18 int use_gdb_syscalls(void); 19 void gdb_set_stop_cpu(CPUState *cpu); 20 void gdb_exit(CPUArchState *, int); 21 #ifdef CONFIG_USER_ONLY 22 int gdb_queuesig (void); 23 int gdb_handlesig(CPUState *, int); 24 void gdb_signalled(CPUArchState *, int); 25 void gdbserver_fork(CPUState *); 26 #endif 27 /* Get or set a register. Returns the size of the register. */ 28 typedef int (*gdb_reg_cb)(CPUArchState *env, uint8_t *buf, int reg); 29 void gdb_register_coprocessor(CPUState *cpu, 30 gdb_reg_cb get_reg, gdb_reg_cb set_reg, 31 int num_regs, const char *xml, int g_pos); 32 33 static inline int cpu_index(CPUState *cpu) 34 { 35 #if defined(CONFIG_USER_ONLY) 36 return cpu->host_tid; 37 #else 38 return cpu->cpu_index + 1; 39 #endif 40 } 41 42 /* The GDB remote protocol transfers values in target byte order. This means 43 * we can use the raw memory access routines to access the value buffer. 44 * Conveniently, these also handle the case where the buffer is mis-aligned. 45 */ 46 47 static inline int gdb_get_reg8(uint8_t *mem_buf, uint8_t val) 48 { 49 stb_p(mem_buf, val); 50 return 1; 51 } 52 53 static inline int gdb_get_reg16(uint8_t *mem_buf, uint16_t val) 54 { 55 stw_p(mem_buf, val); 56 return 2; 57 } 58 59 static inline int gdb_get_reg32(uint8_t *mem_buf, uint32_t val) 60 { 61 stl_p(mem_buf, val); 62 return 4; 63 } 64 65 static inline int gdb_get_reg64(uint8_t *mem_buf, uint64_t val) 66 { 67 stq_p(mem_buf, val); 68 return 8; 69 } 70 71 #if TARGET_LONG_BITS == 64 72 #define gdb_get_regl(buf, val) gdb_get_reg64(buf, val) 73 #define ldtul_p(addr) ldq_p(addr) 74 #else 75 #define gdb_get_regl(buf, val) gdb_get_reg32(buf, val) 76 #define ldtul_p(addr) ldl_p(addr) 77 #endif 78 79 #endif 80 81 #ifdef CONFIG_USER_ONLY 82 int gdbserver_start(int); 83 #else 84 int gdbserver_start(const char *port); 85 #endif 86 87 /** 88 * gdb_has_xml: 89 * This is an ugly hack to cope with both new and old gdb. 90 * If gdb sends qXfer:features:read then assume we're talking to a newish 91 * gdb that understands target descriptions. 92 */ 93 extern bool gdb_has_xml; 94 95 /* in gdbstub-xml.c, generated by scripts/feature_to_c.sh */ 96 extern const char *const xml_builtin[][2]; 97 98 #endif 99