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 #include "cpu.h" 15 16 typedef void (*gdb_syscall_complete_cb)(CPUState *cpu, 17 target_ulong ret, target_ulong err); 18 19 /** 20 * gdb_do_syscall: 21 * @cb: function to call when the system call has completed 22 * @fmt: gdb syscall format string 23 * ...: list of arguments to interpolate into @fmt 24 * 25 * Send a GDB syscall request. This function will return immediately; 26 * the callback function will be called later when the remote system 27 * call has completed. 28 * 29 * @fmt should be in the 'call-id,parameter,parameter...' format documented 30 * for the F request packet in the GDB remote protocol. A limited set of 31 * printf-style format specifiers is supported: 32 * %x - target_ulong argument printed in hex 33 * %lx - 64-bit argument printed in hex 34 * %s - string pointer (target_ulong) and length (int) pair 35 */ 36 void gdb_do_syscall(gdb_syscall_complete_cb cb, const char *fmt, ...); 37 /** 38 * gdb_do_syscallv: 39 * @cb: function to call when the system call has completed 40 * @fmt: gdb syscall format string 41 * @va: arguments to interpolate into @fmt 42 * 43 * As gdb_do_syscall, but taking a va_list rather than a variable 44 * argument list. 45 */ 46 void gdb_do_syscallv(gdb_syscall_complete_cb cb, const char *fmt, va_list va); 47 int use_gdb_syscalls(void); 48 void gdb_set_stop_cpu(CPUState *cpu); 49 void gdb_exit(CPUArchState *, int); 50 #ifdef CONFIG_USER_ONLY 51 int gdb_handlesig(CPUState *, int); 52 void gdb_signalled(CPUArchState *, int); 53 void gdbserver_fork(CPUState *); 54 #endif 55 /* Get or set a register. Returns the size of the register. */ 56 typedef int (*gdb_reg_cb)(CPUArchState *env, uint8_t *buf, int reg); 57 void gdb_register_coprocessor(CPUState *cpu, 58 gdb_reg_cb get_reg, gdb_reg_cb set_reg, 59 int num_regs, const char *xml, int g_pos); 60 61 static inline int cpu_index(CPUState *cpu) 62 { 63 #if defined(CONFIG_USER_ONLY) 64 return cpu->host_tid; 65 #else 66 return cpu->cpu_index + 1; 67 #endif 68 } 69 70 /* The GDB remote protocol transfers values in target byte order. This means 71 * we can use the raw memory access routines to access the value buffer. 72 * Conveniently, these also handle the case where the buffer is mis-aligned. 73 */ 74 75 static inline int gdb_get_reg8(uint8_t *mem_buf, uint8_t val) 76 { 77 stb_p(mem_buf, val); 78 return 1; 79 } 80 81 static inline int gdb_get_reg16(uint8_t *mem_buf, uint16_t val) 82 { 83 stw_p(mem_buf, val); 84 return 2; 85 } 86 87 static inline int gdb_get_reg32(uint8_t *mem_buf, uint32_t val) 88 { 89 stl_p(mem_buf, val); 90 return 4; 91 } 92 93 static inline int gdb_get_reg64(uint8_t *mem_buf, uint64_t val) 94 { 95 stq_p(mem_buf, val); 96 return 8; 97 } 98 99 #if TARGET_LONG_BITS == 64 100 #define gdb_get_regl(buf, val) gdb_get_reg64(buf, val) 101 #define ldtul_p(addr) ldq_p(addr) 102 #else 103 #define gdb_get_regl(buf, val) gdb_get_reg32(buf, val) 104 #define ldtul_p(addr) ldl_p(addr) 105 #endif 106 107 #endif 108 109 #ifdef CONFIG_USER_ONLY 110 int gdbserver_start(int); 111 #else 112 int gdbserver_start(const char *port); 113 #endif 114 115 /** 116 * gdb_has_xml: 117 * This is an ugly hack to cope with both new and old gdb. 118 * If gdb sends qXfer:features:read then assume we're talking to a newish 119 * gdb that understands target descriptions. 120 */ 121 extern bool gdb_has_xml; 122 123 /* in gdbstub-xml.c, generated by scripts/feature_to_c.sh */ 124 extern const char *const xml_builtin[][2]; 125 126 #endif 127