/* Target operations for the remote server for GDB.
- Copyright 2002
+ Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009
Free Software Foundation, Inc.
Contributed by MontaVista Software.
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
+ 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,
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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#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
{
/* Start a new process.
ARGS is a standard NULL-terminated array of arguments,
to be passed to the inferior as ``argv''.
- Returns 0 on success, -1 on failure. Registers the new
+ Returns the new PID on success, -1 on failure. Registers the new
process with the process list. */
int (*create_inferior) (char *program, char **args);
/* Attach to a running process.
PID is the process ID to attach to, specified by the user
- or a higher layer. */
+ or a higher layer.
+
+ Returns -1 if attaching is unsupported, 0 on success, and calls
+ error() otherwise. */
- int (*attach) (int pid);
+ int (*attach) (unsigned long pid);
/* Kill all inferiors. */
void (*kill) (void);
- /* Return 1 iff the thread with process ID PID is alive. */
+ /* Detach from all inferiors.
+ Return -1 on failure, and 0 on success. */
+
+ int (*detach) (void);
- int (*thread_alive) (int pid);
+ /* Wait for inferiors to end. */
- /* Resume the inferior process.
+ void (*join) (void);
+
+ /* Return 1 iff the thread with process ID PID is alive. */
- If STEP is non-zero, we want to single-step.
+ int (*thread_alive) (unsigned long pid);
- If SIGNAL is nonzero, send the process that signal as we resume it.
- */
+ /* Resume the inferior process. */
- void (*resume) (int step, int signo);
+ void (*resume) (struct thread_resume *resume_info);
/* Wait for the inferior process to change state.
- STATUSP will be filled in with a response code to send to GDB.
+ STATUS will be filled in with a response code to send to GDB.
- Returns the signal which caused the process to stop. */
+ 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);
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. */
/* 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. */
+ Read LEN bytes at MEMADDR into a buffer at MYADDR.
+
+ Returns 0 on success and errno on failure. */
- void (*read_memory) (CORE_ADDR memaddr, char *myaddr, int len);
+ 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.
Returns 0 on success and errno on failure. */
- int (*write_memory) (CORE_ADDR memaddr, const char *myaddr, int len);
+ int (*write_memory) (CORE_ADDR memaddr, const unsigned char *myaddr,
+ int len);
/* Query GDB for the values of any symbols we're interested in.
This function is called whenever we receive a "qSymbols::"
void (*look_up_symbols) (void);
- /* Return the PID we should send a signal to. Used for asynchronous
- interrupts (user hitting Control-C). */
+ /* Send an interrupt request to the inferior process,
+ however is appropriate. */
+
+ void (*request_interrupt) (void);
+
+ /* Read auxiliary vector data from the inferior process.
+
+ Read LEN bytes at OFFSET into a buffer at MYADDR. */
+
+ int (*read_auxv) (CORE_ADDR offset, unsigned char *myaddr,
+ unsigned int len);
+
+ /* 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 (*signal_pid) (void);
+ 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);
+
+ /* Reports the text, data offsets of the executable. This is
+ needed for uclinux where the executable is relocated during load
+ time. */
+
+ int (*read_offsets) (CORE_ADDR *text, CORE_ADDR *data);
+
+ /* Fetch the address associated with a specific thread local storage
+ area, determined by the specified THREAD, OFFSET, and LOAD_MODULE.
+ Stores it in *ADDRESS and returns zero on success; otherwise returns
+ an error code. A return value of -1 means this system does not
+ support the operation. */
+
+ int (*get_tls_address) (struct thread_info *thread, CORE_ADDR offset,
+ CORE_ADDR load_module, CORE_ADDR *address);
+
+ /* Read/Write from/to spufs using qXfer packets. */
+ int (*qxfer_spu) (const char *annex, unsigned char *readbuf,
+ unsigned const char *writebuf, CORE_ADDR offset, int len);
+
+ /* Fill BUF with an hostio error packet representing the last hostio
+ error. */
+ void (*hostio_last_error) (char *buf);
+
+ /* Read/Write OS data using qXfer packets. */
+ int (*qxfer_osdata) (const char *annex, unsigned char *readbuf,
+ unsigned const char *writebuf, CORE_ADDR offset,
+ int len);
+
+ /* Read/Write extra signal info. */
+ int (*qxfer_siginfo) (const char *annex, unsigned char *readbuf,
+ unsigned const char *writebuf,
+ CORE_ADDR offset, int len);
};
extern struct target_ops *the_target;
#define kill_inferior() \
(*the_target->kill) ()
+#define detach_inferior() \
+ (*the_target->detach) ()
+
#define mythread_alive(pid) \
(*the_target->thread_alive) (pid)
-#define myresume(step,signo) \
- (*the_target->resume) (step, signo)
-
#define fetch_inferior_registers(regno) \
(*the_target->fetch_registers) (regno)
#define store_inferior_registers(regno) \
(*the_target->store_registers) (regno)
+#define join_inferior() \
+ (*the_target->join) ()
+
unsigned char mywait (char *statusp, int connected_wait);
-void read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len);
+int read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len);
-int write_inferior_memory (CORE_ADDR memaddr, const char *myaddr, int len);
+int write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr,
+ int len);
void set_desired_inferior (int id);
projects / deliverable / binutils-gdb.git / blobdiff