| /* Target operations for the remote server for GDB. |
| Copyright (C) 2002, 2003, 2004, 2005 |
| Free Software Foundation, Inc. |
| |
| Contributed by MontaVista Software. |
| |
| This file is part of GDB. |
| It has been modified to integrate it in valgrind |
| |
| 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 2 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, write to the Free Software |
| Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| #ifndef TARGET_H |
| #define TARGET_H |
| |
| /* This structure describes how to resume a particular thread (or |
| all threads) based on the client's request. If thread is -1, then |
| this entry applies to all threads. These are generally passed around |
| as an array, and terminated by a thread == -1 entry. */ |
| |
| struct thread_resume |
| { |
| unsigned long thread; |
| |
| /* If non-zero, leave this thread stopped. */ |
| int leave_stopped; |
| |
| /* If non-zero, we want to single-step. */ |
| int step; |
| |
| /* If non-zero, send this signal when we resume. */ |
| int sig; |
| }; |
| |
| struct target_ops |
| { |
| /* Return 1 iff the thread with process ID PID is alive. */ |
| |
| int (*thread_alive) (unsigned long pid); |
| |
| /* Resume the inferior process. */ |
| |
| void (*resume) (struct thread_resume *resume_info); |
| |
| /* Wait for the inferior process to change state. |
| |
| STATUS will be filled in with a response code to send to GDB. |
| |
| Returns the signal which caused the process to stop, in the |
| remote protocol numbering (e.g. TARGET_SIGNAL_STOP), or the |
| exit code as an integer if *STATUS is 'W'. */ |
| |
| unsigned char (*wait) (char *status); |
| |
| /* Fetch registers from the inferior process. |
| |
| If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ |
| |
| void (*fetch_registers) (int regno); |
| |
| /* Store registers to the inferior process. |
| |
| If REGNO is -1, store all registers; otherwise, store at least REGNO. */ |
| |
| void (*store_registers) (int regno); |
| |
| /* Read memory from the inferior process. This should generally be |
| called through read_inferior_memory, which handles breakpoint shadowing. |
| |
| Read LEN bytes at MEMADDR into a buffer at MYADDR. |
| |
| Returns 0 on success and errno on failure. */ |
| |
| int (*read_memory) (CORE_ADDR memaddr, unsigned char *myaddr, int len); |
| |
| /* Write memory to the inferior process. This should generally be |
| called through write_inferior_memory, which handles breakpoint shadowing. |
| |
| Write LEN bytes from the buffer at MYADDR to MEMADDR. |
| |
| Returns 0 on success and errno on failure. */ |
| |
| int (*write_memory) (CORE_ADDR memaddr, const unsigned char *myaddr, |
| int len); |
| |
| /* Send a signal to the inferior process, however is appropriate. */ |
| void (*send_signal) (int); |
| |
| /* Returns the name of the xml target description file. |
| returns NULL if no xml target description available. */ |
| char* (*target_xml)(void); |
| |
| /* Same but describes also the shadow registers. */ |
| char* (*shadow_target_xml)(void); |
| |
| /* Insert and remove a hardware watchpoint. |
| Returns 0 on success, -1 on failure and 1 on unsupported. |
| The type is coded as follows: |
| 2 = write watchpoint |
| 3 = read watchpoint |
| 4 = access watchpoint |
| */ |
| |
| int (*insert_watchpoint) (char type, CORE_ADDR addr, int len); |
| int (*remove_watchpoint) (char type, CORE_ADDR addr, int len); |
| |
| /* Returns 1 if target was stopped due to a watchpoint hit, 0 otherwise. */ |
| |
| int (*stopped_by_watchpoint) (void); |
| |
| /* Returns the address associated with the watchpoint that hit, if any; |
| returns 0 otherwise. */ |
| |
| CORE_ADDR (*stopped_data_address) (void); |
| |
| }; |
| |
| extern struct target_ops *the_target; |
| |
| void set_target_ops (struct target_ops *); |
| |
| #define detach_inferior() \ |
| (*the_target->detach) () |
| |
| #define mythread_alive(pid) \ |
| (*the_target->thread_alive) (pid) |
| |
| #define fetch_inferior_registers(regno) \ |
| (*the_target->fetch_registers) (regno) |
| |
| #define store_inferior_registers(regno) \ |
| (*the_target->store_registers) (regno) |
| |
| #define mywait(statusp) \ |
| (*the_target->wait) (statusp) |
| |
| int read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len); |
| |
| int write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr, |
| int len); |
| |
| void set_desired_inferior (int id); |
| |
| /* like memcpy but first check if content of destination and source |
| differs. If no difference, no copy is done, *mod set to False. |
| If different; copy is done, *mod set to True. */ |
| extern void* VG_(dmemcpy) ( void *d, const void *s, SizeT sz, Bool *mod ); |
| |
| typedef |
| enum { |
| valgrind_to_gdbserver, |
| gdbserver_to_valgrind} transfer_direction; |
| |
| // According to dir, calls VG_(dmemcpy) |
| // to copy data from/to valgrind to/from gdbserver. |
| // If the transferred data differs from what is currently stored, |
| // sets *mod to True otherwise set *mod to False. |
| extern void VG_(transfer) (void *valgrind, |
| void *gdbserver, |
| transfer_direction dir, |
| SizeT sz, |
| Bool *mod); |
| |
| #endif /* TARGET_H */ |