| 1 | /* Internal interfaces for the Win32 specific target code for gdbserver. |
| 2 | Copyright (C) 2007-2020 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GDB. |
| 5 | |
| 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. |
| 10 | |
| 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. |
| 15 | |
| 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/>. */ |
| 18 | |
| 19 | #ifndef GDBSERVER_WIN32_LOW_H |
| 20 | #define GDBSERVER_WIN32_LOW_H |
| 21 | |
| 22 | #include <windows.h> |
| 23 | |
| 24 | struct target_desc; |
| 25 | |
| 26 | /* The inferior's target description. This is a global because the |
| 27 | Windows ports support neither bi-arch nor multi-process. */ |
| 28 | extern const struct target_desc *win32_tdesc; |
| 29 | |
| 30 | /* Thread information structure used to track extra information about |
| 31 | each thread. */ |
| 32 | typedef struct win32_thread_info |
| 33 | { |
| 34 | /* The Win32 thread identifier. */ |
| 35 | DWORD tid; |
| 36 | |
| 37 | /* The handle to the thread. */ |
| 38 | HANDLE h; |
| 39 | |
| 40 | /* Thread Information Block address. */ |
| 41 | CORE_ADDR thread_local_base; |
| 42 | |
| 43 | /* Non zero if SuspendThread was called on this thread. */ |
| 44 | int suspended; |
| 45 | |
| 46 | #ifdef _WIN32_WCE |
| 47 | /* The context as retrieved right after suspending the thread. */ |
| 48 | CONTEXT base_context; |
| 49 | #endif |
| 50 | |
| 51 | /* The context of the thread, including any manipulations. */ |
| 52 | CONTEXT context; |
| 53 | |
| 54 | /* Whether debug registers changed since we last set CONTEXT back to |
| 55 | the thread. */ |
| 56 | int debug_registers_changed; |
| 57 | } win32_thread_info; |
| 58 | |
| 59 | struct win32_target_ops |
| 60 | { |
| 61 | /* Architecture-specific setup. */ |
| 62 | void (*arch_setup) (void); |
| 63 | |
| 64 | /* The number of target registers. */ |
| 65 | int num_regs; |
| 66 | |
| 67 | /* Perform initializations on startup. */ |
| 68 | void (*initial_stuff) (void); |
| 69 | |
| 70 | /* Fetch the context from the inferior. */ |
| 71 | void (*get_thread_context) (win32_thread_info *th); |
| 72 | |
| 73 | /* Called just before resuming the thread. */ |
| 74 | void (*prepare_to_resume) (win32_thread_info *th); |
| 75 | |
| 76 | /* Called when a thread was added. */ |
| 77 | void (*thread_added) (win32_thread_info *th); |
| 78 | |
| 79 | /* Fetch register from gdbserver regcache data. */ |
| 80 | void (*fetch_inferior_register) (struct regcache *regcache, |
| 81 | win32_thread_info *th, int r); |
| 82 | |
| 83 | /* Store a new register value into the thread context of TH. */ |
| 84 | void (*store_inferior_register) (struct regcache *regcache, |
| 85 | win32_thread_info *th, int r); |
| 86 | |
| 87 | void (*single_step) (win32_thread_info *th); |
| 88 | |
| 89 | const unsigned char *breakpoint; |
| 90 | int breakpoint_len; |
| 91 | |
| 92 | /* Breakpoint/Watchpoint related functions. See target.h for comments. */ |
| 93 | int (*supports_z_point_type) (char z_type); |
| 94 | int (*insert_point) (enum raw_bkpt_type type, CORE_ADDR addr, |
| 95 | int size, struct raw_breakpoint *bp); |
| 96 | int (*remove_point) (enum raw_bkpt_type type, CORE_ADDR addr, |
| 97 | int size, struct raw_breakpoint *bp); |
| 98 | int (*stopped_by_watchpoint) (void); |
| 99 | CORE_ADDR (*stopped_data_address) (void); |
| 100 | }; |
| 101 | |
| 102 | extern struct win32_target_ops the_low_target; |
| 103 | |
| 104 | /* Target ops definitions for a Win32 target. */ |
| 105 | |
| 106 | class win32_process_target : public process_stratum_target |
| 107 | { |
| 108 | public: |
| 109 | |
| 110 | int create_inferior (const char *program, |
| 111 | const std::vector<char *> &program_args) override; |
| 112 | |
| 113 | int attach (unsigned long pid) override; |
| 114 | |
| 115 | int kill (process_info *proc) override; |
| 116 | |
| 117 | int detach (process_info *proc) override; |
| 118 | |
| 119 | void mourn (process_info *proc) override; |
| 120 | |
| 121 | void join (int pid) override; |
| 122 | |
| 123 | bool thread_alive (ptid_t pid) override; |
| 124 | |
| 125 | void resume (thread_resume *resume_info, size_t n) override; |
| 126 | |
| 127 | ptid_t wait (ptid_t ptid, target_waitstatus *status, |
| 128 | int options) override; |
| 129 | |
| 130 | void fetch_registers (regcache *regcache, int regno) override; |
| 131 | |
| 132 | void store_registers (regcache *regcache, int regno) override; |
| 133 | |
| 134 | int read_memory (CORE_ADDR memaddr, unsigned char *myaddr, |
| 135 | int len) override; |
| 136 | |
| 137 | int write_memory (CORE_ADDR memaddr, const unsigned char *myaddr, |
| 138 | int len) override; |
| 139 | |
| 140 | void request_interrupt () override; |
| 141 | |
| 142 | bool supports_z_point_type (char z_type) override; |
| 143 | |
| 144 | int insert_point (enum raw_bkpt_type type, CORE_ADDR addr, |
| 145 | int size, raw_breakpoint *bp) override; |
| 146 | |
| 147 | int remove_point (enum raw_bkpt_type type, CORE_ADDR addr, |
| 148 | int size, raw_breakpoint *bp) override; |
| 149 | |
| 150 | bool supports_hardware_single_step () override; |
| 151 | |
| 152 | bool stopped_by_watchpoint () override; |
| 153 | |
| 154 | CORE_ADDR stopped_data_address () override; |
| 155 | |
| 156 | #ifdef _WIN32_WCE |
| 157 | void hostio_last_error (char *buf) override; |
| 158 | #endif |
| 159 | |
| 160 | bool supports_qxfer_siginfo () override; |
| 161 | |
| 162 | int qxfer_siginfo (const char *annex, unsigned char *readbuf, |
| 163 | unsigned const char *writebuf, |
| 164 | CORE_ADDR offset, int len) override; |
| 165 | |
| 166 | bool supports_get_tib_address () override; |
| 167 | |
| 168 | int get_tib_address (ptid_t ptid, CORE_ADDR *addr) override; |
| 169 | |
| 170 | const gdb_byte *sw_breakpoint_from_kind (int kind, int *size) override; |
| 171 | }; |
| 172 | |
| 173 | /* Retrieve the context for this thread, if not already retrieved. */ |
| 174 | extern void win32_require_context (win32_thread_info *th); |
| 175 | |
| 176 | /* Map the Windows error number in ERROR to a locale-dependent error |
| 177 | message string and return a pointer to it. Typically, the values |
| 178 | for ERROR come from GetLastError. |
| 179 | |
| 180 | The string pointed to shall not be modified by the application, |
| 181 | but may be overwritten by a subsequent call to strwinerror |
| 182 | |
| 183 | The strwinerror function does not change the current setting |
| 184 | of GetLastError. */ |
| 185 | extern char * strwinerror (DWORD error); |
| 186 | |
| 187 | /* in wincecompat.c */ |
| 188 | |
| 189 | extern void to_back_slashes (char *); |
| 190 | |
| 191 | #endif /* GDBSERVER_WIN32_LOW_H */ |