aboutsummaryrefslogtreecommitdiff
path: root/include/exec/gdbstub.h
blob: bb8a3928dd2731995d48217ed95ce9db4f03b4ae (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
#ifndef GDBSTUB_H
#define GDBSTUB_H

#define DEFAULT_GDBSTUB_PORT "1234"

/* GDB breakpoint/watchpoint types */
#define GDB_BREAKPOINT_SW        0
#define GDB_BREAKPOINT_HW        1
#define GDB_WATCHPOINT_WRITE     2
#define GDB_WATCHPOINT_READ      3
#define GDB_WATCHPOINT_ACCESS    4

/* For gdb file i/o remote protocol open flags. */
#define GDB_O_RDONLY  0
#define GDB_O_WRONLY  1
#define GDB_O_RDWR    2
#define GDB_O_APPEND  8
#define GDB_O_CREAT   0x200
#define GDB_O_TRUNC   0x400
#define GDB_O_EXCL    0x800

/* For gdb file i/o remote protocol errno values */
#define GDB_EPERM           1
#define GDB_ENOENT          2
#define GDB_EINTR           4
#define GDB_EBADF           9
#define GDB_EACCES         13
#define GDB_EFAULT         14
#define GDB_EBUSY          16
#define GDB_EEXIST         17
#define GDB_ENODEV         19
#define GDB_ENOTDIR        20
#define GDB_EISDIR         21
#define GDB_EINVAL         22
#define GDB_ENFILE         23
#define GDB_EMFILE         24
#define GDB_EFBIG          27
#define GDB_ENOSPC         28
#define GDB_ESPIPE         29
#define GDB_EROFS          30
#define GDB_ENAMETOOLONG   91
#define GDB_EUNKNOWN       9999

/* For gdb file i/o remote protocol lseek whence. */
#define GDB_SEEK_SET  0
#define GDB_SEEK_CUR  1
#define GDB_SEEK_END  2

/* For gdb file i/o stat/fstat. */
typedef uint32_t gdb_mode_t;
typedef uint32_t gdb_time_t;

struct gdb_stat {
  uint32_t    gdb_st_dev;     /* device */
  uint32_t    gdb_st_ino;     /* inode */
  gdb_mode_t  gdb_st_mode;    /* protection */
  uint32_t    gdb_st_nlink;   /* number of hard links */
  uint32_t    gdb_st_uid;     /* user ID of owner */
  uint32_t    gdb_st_gid;     /* group ID of owner */
  uint32_t    gdb_st_rdev;    /* device type (if inode device) */
  uint64_t    gdb_st_size;    /* total size, in bytes */
  uint64_t    gdb_st_blksize; /* blocksize for filesystem I/O */
  uint64_t    gdb_st_blocks;  /* number of blocks allocated */
  gdb_time_t  gdb_st_atime;   /* time of last access */
  gdb_time_t  gdb_st_mtime;   /* time of last modification */
  gdb_time_t  gdb_st_ctime;   /* time of last change */
} QEMU_PACKED;

struct gdb_timeval {
  gdb_time_t tv_sec;  /* second */
  uint64_t tv_usec;   /* microsecond */
} QEMU_PACKED;

typedef void (*gdb_syscall_complete_cb)(CPUState *cpu, uint64_t ret, int err);

/**
 * gdb_do_syscall:
 * @cb: function to call when the system call has completed
 * @fmt: gdb syscall format string
 * ...: list of arguments to interpolate into @fmt
 *
 * Send a GDB syscall request. This function will return immediately;
 * the callback function will be called later when the remote system
 * call has completed.
 *
 * @fmt should be in the 'call-id,parameter,parameter...' format documented
 * for the F request packet in the GDB remote protocol. A limited set of
 * printf-style format specifiers is supported:
 *   %x  - target_ulong argument printed in hex
 *   %lx - 64-bit argument printed in hex
 *   %s  - string pointer (target_ulong) and length (int) pair
 */
void gdb_do_syscall(gdb_syscall_complete_cb cb, const char *fmt, ...);
/**
 * gdb_do_syscallv:
 * @cb: function to call when the system call has completed
 * @fmt: gdb syscall format string
 * @va: arguments to interpolate into @fmt
 *
 * As gdb_do_syscall, but taking a va_list rather than a variable
 * argument list.
 */
void gdb_do_syscallv(gdb_syscall_complete_cb cb, const char *fmt, va_list va);
int use_gdb_syscalls(void);

/* Get or set a register.  Returns the size of the register.  */
typedef int (*gdb_get_reg_cb)(CPUArchState *env, GByteArray *buf, int reg);
typedef int (*gdb_set_reg_cb)(CPUArchState *env, uint8_t *buf, int reg);
void gdb_register_coprocessor(CPUState *cpu,
                              gdb_get_reg_cb get_reg, gdb_set_reg_cb set_reg,
                              int num_regs, const char *xml, int g_pos);

/**
 * gdbserver_start: start the gdb server
 * @port_or_device: connection spec for gdb
 *
 * For CONFIG_USER this is either a tcp port or a path to a fifo. For
 * system emulation you can use a full chardev spec for your gdbserver
 * port.
 */
int gdbserver_start(const char *port_or_device);

/**
 * gdb_exit: exit gdb session, reporting inferior status
 * @code: exit code reported
 *
 * This closes the session and sends a final packet to GDB reporting
 * the exit status of the program. It also cleans up any connections
 * detritus before returning.
 */
void gdb_exit(int code);

void gdb_set_stop_cpu(CPUState *cpu);

/**
 * gdb_has_xml:
 * This is an ugly hack to cope with both new and old gdb.
 * If gdb sends qXfer:features:read then assume we're talking to a newish
 * gdb that understands target descriptions.
 */
extern bool gdb_has_xml;

/* in gdbstub-xml.c, generated by scripts/feature_to_c.sh */
extern const char *const xml_builtin[][2];

#endif