/* Internal interfaces for the Win32 specific target code for gdbserver. Copyright (C) 2007-2021 Free Software Foundation, Inc. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef GDBSERVER_WIN32_LOW_H #define GDBSERVER_WIN32_LOW_H #include <windows.h> #include "nat/windows-nat.h" struct target_desc; /* The inferior's target description. This is a global because the Windows ports support neither bi-arch nor multi-process. */ extern const struct target_desc *win32_tdesc; #ifdef __x86_64__ extern const struct target_desc *wow64_win32_tdesc; typedef BOOL (WINAPI *winapi_Wow64GetThreadContext) (HANDLE, PWOW64_CONTEXT); extern winapi_Wow64GetThreadContext win32_Wow64GetThreadContext; #endif struct win32_target_ops { /* Architecture-specific setup. */ void (*arch_setup) (void); /* The number of target registers. */ int (*num_regs) (void); /* Perform initializations on startup. */ void (*initial_stuff) (void); /* Fetch the context from the inferior. */ void (*get_thread_context) (windows_nat::windows_thread_info *th); /* Called just before resuming the thread. */ void (*prepare_to_resume) (windows_nat::windows_thread_info *th); /* Called when a thread was added. */ void (*thread_added) (windows_nat::windows_thread_info *th); /* Fetch register from gdbserver regcache data. */ void (*fetch_inferior_register) (struct regcache *regcache, windows_nat::windows_thread_info *th, int r); /* Store a new register value into the thread context of TH. */ void (*store_inferior_register) (struct regcache *regcache, windows_nat::windows_thread_info *th, int r); void (*single_step) (windows_nat::windows_thread_info *th); const unsigned char *breakpoint; int breakpoint_len; /* Amount by which to decrement the PC after a breakpoint is hit. */ int decr_pc_after_break; /* Get the PC register from REGCACHE. */ CORE_ADDR (*get_pc) (struct regcache *regcache); /* Set the PC register in REGCACHE. */ void (*set_pc) (struct regcache *regcache, CORE_ADDR newpc); /* Breakpoint/Watchpoint related functions. See target.h for comments. */ int (*supports_z_point_type) (char z_type); int (*insert_point) (enum raw_bkpt_type type, CORE_ADDR addr, int size, struct raw_breakpoint *bp); int (*remove_point) (enum raw_bkpt_type type, CORE_ADDR addr, int size, struct raw_breakpoint *bp); int (*stopped_by_watchpoint) (void); CORE_ADDR (*stopped_data_address) (void); }; extern struct win32_target_ops the_low_target; /* Target ops definitions for a Win32 target. */ class win32_process_target : public process_stratum_target { public: int create_inferior (const char *program, const std::vector<char *> &program_args) override; int attach (unsigned long pid) override; int kill (process_info *proc) override; int detach (process_info *proc) override; void mourn (process_info *proc) override; void join (int pid) override; bool thread_alive (ptid_t pid) override; void resume (thread_resume *resume_info, size_t n) override; ptid_t wait (ptid_t ptid, target_waitstatus *status, target_wait_flags options) override; void fetch_registers (regcache *regcache, int regno) override; void store_registers (regcache *regcache, int regno) override; int read_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len) override; int write_memory (CORE_ADDR memaddr, const unsigned char *myaddr, int len) override; void request_interrupt () override; bool supports_z_point_type (char z_type) override; int insert_point (enum raw_bkpt_type type, CORE_ADDR addr, int size, raw_breakpoint *bp) override; int remove_point (enum raw_bkpt_type type, CORE_ADDR addr, int size, raw_breakpoint *bp) override; bool supports_hardware_single_step () override; bool stopped_by_watchpoint () override; CORE_ADDR stopped_data_address () override; #ifdef _WIN32_WCE void hostio_last_error (char *buf) override; #endif bool supports_qxfer_siginfo () override; int qxfer_siginfo (const char *annex, unsigned char *readbuf, unsigned const char *writebuf, CORE_ADDR offset, int len) override; bool supports_get_tib_address () override; int get_tib_address (ptid_t ptid, CORE_ADDR *addr) override; const gdb_byte *sw_breakpoint_from_kind (int kind, int *size) override; CORE_ADDR read_pc (regcache *regcache) override; void write_pc (regcache *regcache, CORE_ADDR pc) override; bool stopped_by_sw_breakpoint () override; bool supports_stopped_by_sw_breakpoint () override; }; /* Retrieve the context for this thread, if not already retrieved. */ extern void win32_require_context (windows_nat::windows_thread_info *th); /* Map the Windows error number in ERROR to a locale-dependent error message string and return a pointer to it. Typically, the values for ERROR come from GetLastError. The string pointed to shall not be modified by the application, but may be overwritten by a subsequent call to strwinerror The strwinerror function does not change the current setting of GetLastError. */ extern char * strwinerror (DWORD error); #endif /* GDBSERVER_WIN32_LOW_H */