/* Target operations for the remote server for GDB.
- Copyright (C) 2002-2005, 2007-2012 Free Software Foundation, Inc.
+ Copyright (C) 2002-2013 Free Software Foundation, Inc.
Contributed by MontaVista Software.
#ifndef TARGET_H
#define TARGET_H
-struct emit_ops;
-
-/* Ways to "resume" a thread. */
-
-enum resume_kind
-{
- /* Thread should continue. */
- resume_continue,
-
- /* Thread should single-step. */
- resume_step,
+#include "target-common.h"
- /* Thread should be stopped. */
- resume_stop
-};
+struct emit_ops;
+struct btrace_target_info;
+struct buffer;
/* This structure describes how to resume a particular thread (or all
threads) based on the client's request. If thread is -1, then this
thread. If stopping a thread, and this is 0, the target should
stop the thread however it best decides to (e.g., SIGSTOP on
linux; SuspendThread on win32). This is a host signal value (not
- enum target_signal). */
+ enum gdb_signal). */
int sig;
-};
-/* Generally, what has the program done? */
-enum target_waitkind
- {
- /* The program has exited. The exit status is in
- value.integer. */
- TARGET_WAITKIND_EXITED,
-
- /* The program has stopped with a signal. Which signal is in
- value.sig. */
- TARGET_WAITKIND_STOPPED,
-
- /* The program has terminated with a signal. Which signal is in
- value.sig. */
- TARGET_WAITKIND_SIGNALLED,
-
- /* The program is letting us know that it dynamically loaded
- something. */
- TARGET_WAITKIND_LOADED,
-
- /* The program has exec'ed a new executable file. The new file's
- pathname is pointed to by value.execd_pathname. */
- TARGET_WAITKIND_EXECD,
-
- /* Nothing of interest to GDB happened, but we stopped anyway. */
- TARGET_WAITKIND_SPURIOUS,
-
- /* An event has occurred, but we should wait again. In this case,
- we want to go back to the event loop and wait there for another
- event from the inferior. */
- TARGET_WAITKIND_IGNORE
- };
-
-struct target_waitstatus
- {
- enum target_waitkind kind;
-
- /* Forked child pid, execd pathname, exit status or signal number. */
- union
- {
- int integer;
- enum target_signal sig;
- ptid_t related_pid;
- char *execd_pathname;
- }
- value;
- };
-
-/* Options that can be passed to target_ops->wait. */
-
-#define TARGET_WNOHANG 1
+ /* Range to single step within. Valid only iff KIND is resume_step.
+
+ Single-step once, and then continuing stepping as long as the
+ thread stops in this range. (If the range is empty
+ [STEP_RANGE_START == STEP_RANGE_END], then this is a single-step
+ request.) */
+ CORE_ADDR step_range_start; /* Inclusive */
+ CORE_ADDR step_range_end; /* Exclusive */
+};
struct target_ops
{
int (*qxfer_libraries_svr4) (const char *annex, unsigned char *readbuf,
unsigned const char *writebuf,
CORE_ADDR offset, int len);
+
+ /* Return true if target supports debugging agent. */
+ int (*supports_agent) (void);
+
+ /* Check whether the target supports branch tracing. */
+ int (*supports_btrace) (void);
+
+ /* Enable branch tracing for @ptid and allocate a branch trace target
+ information struct for reading and for disabling branch trace. */
+ struct btrace_target_info *(*enable_btrace) (ptid_t ptid);
+
+ /* Disable branch tracing. */
+ int (*disable_btrace) (struct btrace_target_info *tinfo);
+
+ /* Read branch trace data into buffer. We use an int to specify the type
+ to break a cyclic dependency. */
+ void (*read_btrace) (struct btrace_target_info *, struct buffer *, int type);
+
+ /* Return true if target supports range stepping. */
+ int (*supports_range_stepping) (void);
};
extern struct target_ops *the_target;
#define myattach(pid) \
(*the_target->attach) (pid)
-#define kill_inferior(pid) \
- (*the_target->kill) (pid)
+int kill_inferior (int);
#define detach_inferior(pid) \
(*the_target->detach) (pid)
(the_target->supports_disable_randomization ? \
(*the_target->supports_disable_randomization) () : 0)
+#define target_supports_agent() \
+ (the_target->supports_agent ? \
+ (*the_target->supports_agent) () : 0)
+
+#define target_supports_btrace() \
+ (the_target->supports_btrace ? (*the_target->supports_btrace) () : 0)
+
+#define target_enable_btrace(ptid) \
+ (*the_target->enable_btrace) (ptid)
+
+#define target_disable_btrace(tinfo) \
+ (*the_target->disable_btrace) (tinfo)
+
+#define target_read_btrace(tinfo, buffer, type) \
+ (*the_target->read_btrace) (tinfo, buffer, type)
+
+#define target_supports_range_stepping() \
+ (the_target->supports_range_stepping ? \
+ (*the_target->supports_range_stepping) () : 0)
+
/* Start non-stop mode, returns 0 on success, -1 on failure. */
int start_non_stop (int nonstop);
(*the_target->done_accessing_memory) (); \
} while (0)
+#define target_core_of_thread(ptid) \
+ (the_target->core_of_thread ? (*the_target->core_of_thread) (ptid) \
+ : -1)
+
int read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len);
int write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr,
const char *target_pid_to_str (ptid_t);
-const char *target_waitstatus_to_string (const struct target_waitstatus *);
-
#endif /* TARGET_H */
projects / deliverable / binutils-gdb.git / blobdiff