X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fgdbserver%2Ftarget.h;h=f5eda8ae18f6c740e73447da640c5fe953e7ffce;hb=802e8e6d8465a0d05803a987ba1bb3237fb2fb70;hp=03dff0f628de7dabcc5efeee89adc855858aff95;hpb=0b30217134add051e159a192066a1e568ebd837f;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/gdbserver/target.h b/gdb/gdbserver/target.h index 03dff0f628..f5eda8ae18 100644 --- a/gdb/gdbserver/target.h +++ b/gdb/gdbserver/target.h @@ -1,5 +1,5 @@ /* Target operations for the remote server for GDB. - Copyright (C) 2002-2005, 2007-2012 Free Software Foundation, Inc. + Copyright (C) 2002-2014 Free Software Foundation, Inc. Contributed by MontaVista Software. @@ -21,21 +21,15 @@ #ifndef TARGET_H #define TARGET_H -struct emit_ops; - -/* Ways to "resume" a thread. */ - -enum resume_kind -{ - /* Thread should continue. */ - resume_continue, +#include "target/resume.h" +#include "target/wait.h" +#include "target/waitstatus.h" +#include "mem-break.h" - /* Thread should single-step. */ - resume_step, - - /* Thread should be stopped. */ - resume_stop -}; +struct emit_ops; +struct btrace_target_info; +struct buffer; +struct process_info; /* This structure describes how to resume a particular thread (or all threads) based on the client's request. If thread is -1, then this @@ -53,60 +47,18 @@ struct thread_resume 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 { @@ -185,8 +137,8 @@ struct target_ops inferior such that it is possible to access memory. This should generally only be called from client facing routines, - such as gdb_read_memory/gdb_write_memory, or the insert_point - callbacks. + such as gdb_read_memory/gdb_write_memory, or the GDB breakpoint + insertion routine. Like `read_memory' and `write_memory' below, returns 0 on success and errno on failure. */ @@ -236,17 +188,23 @@ struct target_ops int (*read_auxv) (CORE_ADDR offset, unsigned char *myaddr, unsigned int len); - /* Insert and remove a break or watchpoint. - Returns 0 on success, -1 on failure and 1 on unsupported. - The type is coded as follows: + /* Returns true if GDB Z breakpoint type TYPE is supported, false + otherwise. The type is coded as follows: '0' - software-breakpoint '1' - hardware-breakpoint '2' - write watchpoint '3' - read watchpoint - '4' - access watchpoint */ + '4' - access watchpoint + */ + int (*supports_z_point_type) (char z_type); - int (*insert_point) (char type, CORE_ADDR addr, int len); - int (*remove_point) (char type, CORE_ADDR addr, int len); + /* Insert and remove a break or watchpoint. + Returns 0 on success, -1 on failure and 1 on unsupported. */ + + 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); /* Returns 1 if target was stopped due to a watchpoint hit, 0 otherwise. */ @@ -394,6 +352,29 @@ 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) (struct target_ops *); + + /* 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. + Returns zero on success, non-zero otherwise. */ + 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. + Return 0 on success; print an error message into BUFFER and return -1, + otherwise. */ + int (*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; @@ -406,8 +387,7 @@ void set_target_ops (struct target_ops *); #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) @@ -514,6 +494,27 @@ void set_target_ops (struct target_ops *); (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) (the_target) : 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); @@ -533,6 +534,10 @@ ptid_t mywait (ptid_t ptid, struct target_waitstatus *ourstatus, int options, (*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, @@ -542,6 +547,4 @@ void set_desired_inferior (int id); const char *target_pid_to_str (ptid_t); -const char *target_waitstatus_to_string (const struct target_waitstatus *); - #endif /* TARGET_H */