1 /* Internal interfaces for the Win32 specific target code for gdbserver.
2 Copyright (C) 2007-2022 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19 #ifndef GDBSERVER_WIN32_LOW_H
20 #define GDBSERVER_WIN32_LOW_H
23 #include "nat/windows-nat.h"
27 /* The inferior's target description. This is a global because the
28 Windows ports support neither bi-arch nor multi-process. */
29 extern const struct target_desc
*win32_tdesc
;
31 extern const struct target_desc
*wow64_win32_tdesc
;
33 typedef BOOL (WINAPI
*winapi_Wow64GetThreadContext
) (HANDLE
, PWOW64_CONTEXT
);
34 extern winapi_Wow64GetThreadContext win32_Wow64GetThreadContext
;
37 struct win32_target_ops
39 /* Architecture-specific setup. */
40 void (*arch_setup
) (void);
42 /* The number of target registers. */
43 int (*num_regs
) (void);
45 /* Perform initializations on startup. */
46 void (*initial_stuff
) (void);
48 /* Fetch the context from the inferior. */
49 void (*get_thread_context
) (windows_nat::windows_thread_info
*th
);
51 /* Called just before resuming the thread. */
52 void (*prepare_to_resume
) (windows_nat::windows_thread_info
*th
);
54 /* Called when a thread was added. */
55 void (*thread_added
) (windows_nat::windows_thread_info
*th
);
57 /* Fetch register from gdbserver regcache data. */
58 void (*fetch_inferior_register
) (struct regcache
*regcache
,
59 windows_nat::windows_thread_info
*th
,
62 /* Store a new register value into the thread context of TH. */
63 void (*store_inferior_register
) (struct regcache
*regcache
,
64 windows_nat::windows_thread_info
*th
,
67 void (*single_step
) (windows_nat::windows_thread_info
*th
);
69 const unsigned char *breakpoint
;
72 /* Amount by which to decrement the PC after a breakpoint is
74 int decr_pc_after_break
;
76 /* Get the PC register from REGCACHE. */
77 CORE_ADDR (*get_pc
) (struct regcache
*regcache
);
78 /* Set the PC register in REGCACHE. */
79 void (*set_pc
) (struct regcache
*regcache
, CORE_ADDR newpc
);
81 /* Breakpoint/Watchpoint related functions. See target.h for comments. */
82 int (*supports_z_point_type
) (char z_type
);
83 int (*insert_point
) (enum raw_bkpt_type type
, CORE_ADDR addr
,
84 int size
, struct raw_breakpoint
*bp
);
85 int (*remove_point
) (enum raw_bkpt_type type
, CORE_ADDR addr
,
86 int size
, struct raw_breakpoint
*bp
);
87 int (*stopped_by_watchpoint
) (void);
88 CORE_ADDR (*stopped_data_address
) (void);
91 extern struct win32_target_ops the_low_target
;
93 /* Target ops definitions for a Win32 target. */
95 class win32_process_target
: public process_stratum_target
99 int create_inferior (const char *program
,
100 const std::vector
<char *> &program_args
) override
;
102 int attach (unsigned long pid
) override
;
104 int kill (process_info
*proc
) override
;
106 int detach (process_info
*proc
) override
;
108 void mourn (process_info
*proc
) override
;
110 void join (int pid
) override
;
112 bool thread_alive (ptid_t pid
) override
;
114 void resume (thread_resume
*resume_info
, size_t n
) override
;
116 ptid_t
wait (ptid_t ptid
, target_waitstatus
*status
,
117 target_wait_flags options
) override
;
119 void fetch_registers (regcache
*regcache
, int regno
) override
;
121 void store_registers (regcache
*regcache
, int regno
) override
;
123 int read_memory (CORE_ADDR memaddr
, unsigned char *myaddr
,
126 int write_memory (CORE_ADDR memaddr
, const unsigned char *myaddr
,
129 void request_interrupt () override
;
131 bool supports_z_point_type (char z_type
) override
;
133 int insert_point (enum raw_bkpt_type type
, CORE_ADDR addr
,
134 int size
, raw_breakpoint
*bp
) override
;
136 int remove_point (enum raw_bkpt_type type
, CORE_ADDR addr
,
137 int size
, raw_breakpoint
*bp
) override
;
139 bool supports_hardware_single_step () override
;
141 bool stopped_by_watchpoint () override
;
143 CORE_ADDR
stopped_data_address () override
;
145 bool supports_qxfer_siginfo () override
;
147 int qxfer_siginfo (const char *annex
, unsigned char *readbuf
,
148 unsigned const char *writebuf
,
149 CORE_ADDR offset
, int len
) override
;
151 bool supports_get_tib_address () override
;
153 int get_tib_address (ptid_t ptid
, CORE_ADDR
*addr
) override
;
155 const gdb_byte
*sw_breakpoint_from_kind (int kind
, int *size
) override
;
157 CORE_ADDR
read_pc (regcache
*regcache
) override
;
159 void write_pc (regcache
*regcache
, CORE_ADDR pc
) override
;
161 bool stopped_by_sw_breakpoint () override
;
163 bool supports_stopped_by_sw_breakpoint () override
;
166 /* Retrieve the context for this thread, if not already retrieved. */
167 extern void win32_require_context (windows_nat::windows_thread_info
*th
);
169 /* Map the Windows error number in ERROR to a locale-dependent error
170 message string and return a pointer to it. Typically, the values
171 for ERROR come from GetLastError.
173 The string pointed to shall not be modified by the application,
174 but may be overwritten by a subsequent call to strwinerror
176 The strwinerror function does not change the current setting
178 extern char * strwinerror (DWORD error
);
180 #endif /* GDBSERVER_WIN32_LOW_H */