611cb4a542
* gdbserver/mem-break.c: New file.
* gdbserver/mem-break.h: New file.
* gdbserver/Makefile.in: Add mem-break.o rule; update server.h
dependencies.
* gdbserver/inferiors.c (struct inferior_info): Add target_data
member.
(clear_inferiors): Free target_data member if set.
(inferior_target_data, set_inferior_target_data): New functions.
* gdbserver/linux-i386-low.c (i386_breakpoint, i386_breakpoint_len)
(i386_stop_pc, i386_set_pc): New. Add to the_low_target.
* gdbserver/linux-low.c (linux_bp_reinsert): New variable.
(struct inferior_linux_data): New.
(linux_create_inferior): Use set_inferior_target_data.
(linux_attach): Likewise. Call add_inferior.
(linux_wait_for_one_inferior): New function.
(linux_wait): Call it.
(linux_write_memory): Add const.
(initialize_low): Call set_breakpoint_data.
* gdbserver/linux-low.h (struct linux_target_ops): Add breakpoint
handling members.
* gdbserver/server.c (attach_inferior): Remove extra add_inferior
call.
* gdbserver/server.h: Include mem-break.h. Update inferior.c
prototypes.
* gdbserver/target.c (read_inferior_memory)
(write_inferior_memory): New functions.
* gdbserver/target.h (read_inferior_memory)
(write_inferior_memory): Change macros to prototypes.
(struct target_ops): Update comments. Add const to write_memory
definition.
141 lines
4 KiB
C
141 lines
4 KiB
C
/* Target operations for the remote server for GDB.
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Copyright 2002
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Free Software Foundation, Inc.
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Contributed by MontaVista Software.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef TARGET_H
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#define TARGET_H
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struct target_ops
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{
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/* Start a new process.
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PROGRAM is a path to the program to execute.
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ARGS is a standard NULL-terminated array of arguments,
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to be passed to the inferior as ``argv''.
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Returns 0 on success, -1 on failure. Registers the new
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process with the process list. */
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int (*create_inferior) (char *program, char **args);
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/* Attach to a running process.
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PID is the process ID to attach to, specified by the user
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or a higher layer. */
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int (*attach) (int pid);
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/* Kill all inferiors. */
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void (*kill) (void);
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/* Return 1 iff the thread with process ID PID is alive. */
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int (*thread_alive) (int pid);
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/* Resume the inferior process.
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If STEP is non-zero, we want to single-step.
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If SIGNAL is nonzero, send the process that signal as we resume it.
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*/
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void (*resume) (int step, int signo);
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/* Wait for the inferior process to change state.
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STATUSP will be filled in with a response code to send to GDB.
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Returns the signal which caused the process to stop. */
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unsigned char (*wait) (char *status);
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/* Fetch registers from the inferior process.
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If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */
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void (*fetch_registers) (int regno);
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/* Store registers to the inferior process.
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If REGNO is -1, store all registers; otherwise, store at least REGNO. */
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void (*store_registers) (int regno);
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/* Read memory from the inferior process. This should generally be
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called through read_inferior_memory, which handles breakpoint shadowing.
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Read LEN bytes at MEMADDR into a buffer at MYADDR. */
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void (*read_memory) (CORE_ADDR memaddr, char *myaddr, int len);
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/* Write memory to the inferior process. This should generally be
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called through write_inferior_memory, which handles breakpoint shadowing.
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Write LEN bytes from the buffer at MYADDR to MEMADDR.
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Returns 0 on success and errno on failure. */
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int (*write_memory) (CORE_ADDR memaddr, const char *myaddr, int len);
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/* Query GDB for the values of any symbols we're interested in.
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This function is called whenever we receive a "qSymbols::"
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query, which corresponds to every time more symbols (might)
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become available. NULL if we aren't interested in any
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symbols. */
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void (*look_up_symbols) (void);
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};
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extern struct target_ops *the_target;
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void set_target_ops (struct target_ops *);
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#define create_inferior(program, args) \
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(*the_target->create_inferior) (program, args)
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#define myattach(pid) \
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(*the_target->attach) (pid)
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#define kill_inferior() \
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(*the_target->kill) ()
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#define mythread_alive(pid) \
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(*the_target->thread_alive) (pid)
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#define myresume(step,signo) \
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(*the_target->resume) (step, signo)
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#define mywait(statusp) \
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(*the_target->wait) (statusp)
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#define fetch_inferior_registers(regno) \
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(*the_target->fetch_registers) (regno)
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#define store_inferior_registers(regno) \
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(*the_target->store_registers) (regno)
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void read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len);
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int write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len);
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#endif /* TARGET_H */
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