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 /** 18 * gdb_do_syscall: 19 * @cb: function to call when the system call has completed 20 * @fmt: gdb syscall format string 21 * ...: list of arguments to interpolate into @fmt 22 * 23 * Send a GDB syscall request. This function will return immediately; 24 * the callback function will be called later when the remote system 25 * call has completed. 26 * 27 * @fmt should be in the 'call-id,parameter,parameter...' format documented 28 * for the F request packet in the GDB remote protocol. A limited set of 29 * printf-style format specifiers is supported: 30 * %x - target_ulong argument printed in hex 31 * %lx - 64-bit argument printed in hex 32 * %s - string pointer (target_ulong) and length (int) pair 33 */ 34 void gdb_do_syscall(gdb_syscall_complete_cb cb, const char *fmt, ...); 35 /** 36 * gdb_do_syscallv: 37 * @cb: function to call when the system call has completed 38 * @fmt: gdb syscall format string 39 * @va: arguments to interpolate into @fmt 40 * 41 * As gdb_do_syscall, but taking a va_list rather than a variable 42 * argument list. 43 */ 44 void gdb_do_syscallv(gdb_syscall_complete_cb cb, const char *fmt, va_list va); 45 int use_gdb_syscalls(void); 46 void gdb_set_stop_cpu(CPUState *cpu); 47 void gdb_exit(CPUArchState *, int); 48 #ifdef CONFIG_USER_ONLY 49 int gdb_queuesig (void); 50 int gdb_handlesig(CPUState *, int); 51 void gdb_signalled(CPUArchState *, int); 52 void gdbserver_fork(CPUState *); 53 #endif 54 /* Get or set a register. Returns the size of the register. */ 55 typedef int (*gdb_reg_cb)(CPUArchState *env, uint8_t *buf, int reg); 56 void gdb_register_coprocessor(CPUState *cpu, 57 gdb_reg_cb get_reg, gdb_reg_cb set_reg, 58 int num_regs, const char *xml, int g_pos); 59 60 static inline int cpu_index(CPUState *cpu) 61 { 62 #if defined(CONFIG_USER_ONLY) 63 return cpu->host_tid; 64 #else 65 return cpu->cpu_index + 1; 66 #endif 67 } 68 69 /* The GDB remote protocol transfers values in target byte order. This means 70 * we can use the raw memory access routines to access the value buffer. 71 * Conveniently, these also handle the case where the buffer is mis-aligned. 72 */ 73 74 static inline int gdb_get_reg8(uint8_t *mem_buf, uint8_t val) 75 { 76 stb_p(mem_buf, val); 77 return 1; 78 } 79 80 static inline int gdb_get_reg16(uint8_t *mem_buf, uint16_t val) 81 { 82 stw_p(mem_buf, val); 83 return 2; 84 } 85 86 static inline int gdb_get_reg32(uint8_t *mem_buf, uint32_t val) 87 { 88 stl_p(mem_buf, val); 89 return 4; 90 } 91 92 static inline int gdb_get_reg64(uint8_t *mem_buf, uint64_t val) 93 { 94 stq_p(mem_buf, val); 95 return 8; 96 } 97 98 #if TARGET_LONG_BITS == 64 99 #define gdb_get_regl(buf, val) gdb_get_reg64(buf, val) 100 #define ldtul_p(addr) ldq_p(addr) 101 #else 102 #define gdb_get_regl(buf, val) gdb_get_reg32(buf, val) 103 #define ldtul_p(addr) ldl_p(addr) 104 #endif 105 106 #endif 107 108 #ifdef CONFIG_USER_ONLY 109 int gdbserver_start(int); 110 #else 111 int gdbserver_start(const char *port); 112 #endif 113 114 /** 115 * gdb_has_xml: 116 * This is an ugly hack to cope with both new and old gdb. 117 * If gdb sends qXfer:features:read then assume we're talking to a newish 118 * gdb that understands target descriptions. 119 */ 120 extern bool gdb_has_xml; 121 122 /* in gdbstub-xml.c, generated by scripts/feature_to_c.sh */ 123 extern const char *const xml_builtin[][2]; 124 125 #endif 126