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/* Internal interfaces for the Win32 specific target code for gdbserver.
Copyright (C) 2007-2020 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>
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;
/* Thread information structure used to track extra information about
each thread. */
typedef struct win32_thread_info
{
/* The Win32 thread identifier. */
DWORD tid;
/* The handle to the thread. */
HANDLE h;
/* Thread Information Block address. */
CORE_ADDR thread_local_base;
/* Non zero if SuspendThread was called on this thread. */
int suspended;
#ifdef _WIN32_WCE
/* The context as retrieved right after suspending the thread. */
CONTEXT base_context;
#endif
/* The context of the thread, including any manipulations. */
CONTEXT context;
/* Whether debug registers changed since we last set CONTEXT back to
the thread. */
int debug_registers_changed;
} win32_thread_info;
struct win32_target_ops
{
/* Architecture-specific setup. */
void (*arch_setup) (void);
/* The number of target registers. */
int num_regs;
/* Perform initializations on startup. */
void (*initial_stuff) (void);
/* Fetch the context from the inferior. */
void (*get_thread_context) (win32_thread_info *th);
/* Called just before resuming the thread. */
void (*prepare_to_resume) (win32_thread_info *th);
/* Called when a thread was added. */
void (*thread_added) (win32_thread_info *th);
/* Fetch register from gdbserver regcache data. */
void (*fetch_inferior_register) (struct regcache *regcache,
win32_thread_info *th, int r);
/* Store a new register value into the thread context of TH. */
void (*store_inferior_register) (struct regcache *regcache,
win32_thread_info *th, int r);
void (*single_step) (win32_thread_info *th);
const unsigned char *breakpoint;
int breakpoint_len;
/* 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_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,
int 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;
};
/* Retrieve the context for this thread, if not already retrieved. */
extern void win32_require_context (win32_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);
/* in wincecompat.c */
extern void to_back_slashes (char *);
#endif /* GDBSERVER_WIN32_LOW_H */
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