X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gdb%2Flinux-nat.h;h=7bdeb314a6639ea8721916307fa79ce7d61b1d06;hb=41549dfbcc747d0dc4a97c9a427c3a29e9878f05;hp=d9dc71b8f5c22be707a168ae3e9fd6ba4128fa07;hpb=0b30217134add051e159a192066a1e568ebd837f;p=external%2Fbinutils.git

diff --git a/gdb/linux-nat.h b/gdb/linux-nat.h
index d9dc71b..7bdeb31 100644
--- a/gdb/linux-nat.h
+++ b/gdb/linux-nat.h
@@ -1,6 +1,6 @@
 /* Native debugging support for GNU/Linux (LWP layer).
 
-   Copyright (C) 2000-2012 Free Software Foundation, Inc.
+   Copyright (C) 2000-2016 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -17,26 +17,12 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+#include "nat/linux-nat.h"
 #include "target.h"
-
 #include <signal.h>
 
 struct arch_lwp_info;
 
-/* Ways to "resume" a thread.  */
-
-enum resume_kind
-{
-  /* Thread should continue.  */
-  resume_continue,
-
-  /* Thread should single-step.  */
-  resume_step,
-
-  /* Thread should be stopped.  */
-  resume_stop
-};
-
 /* Structure describing an LWP.  This is public only for the purposes
    of ALL_LWPS; target-specific code should generally not access it
    directly.  */
@@ -47,10 +33,9 @@ struct lwp_info
      and overall process id.  */
   ptid_t ptid;
 
-  /* Non-zero if this LWP is cloned.  In this context "cloned" means
-     that the LWP is reporting to its parent using a signal other than
-     SIGCHLD.  */
-  int cloned;
+  /* If this flag is set, we need to set the event request flags the
+     next time we see this LWP stop.  */
+  int must_set_ptrace_flags;
 
   /* Non-zero if we sent this LWP a SIGSTOP (but the LWP didn't report
      it back yet).  */
@@ -73,16 +58,19 @@ struct lwp_info
   /* If non-zero, a pending wait status.  */
   int status;
 
+  /* When 'stopped' is set, this is where the lwp last stopped, with
+     decr_pc_after_break already accounted for.  If the LWP is
+     running, and stepping, this is the address at which the lwp was
+     resumed (that is, it's the previous stop PC).  If the LWP is
+     running and not stepping, this is 0.  */
+  CORE_ADDR stop_pc;
+
   /* Non-zero if we were stepping this LWP.  */
   int step;
 
-  /* Non-zero si_signo if this LWP stopped with a trap.  si_addr may
-     be the address of a hardware watchpoint.  */
-  struct siginfo siginfo;
-
-  /* STOPPED_BY_WATCHPOINT is non-zero if this LWP stopped with a data
-     watchpoint trap.  */
-  int stopped_by_watchpoint;
+  /* The reason the LWP last stopped, if we need to track it
+     (breakpoint, watchpoint, etc.)  */
+  enum target_stop_reason stop_reason;
 
   /* On architectures where it is possible to know the data address of
      a triggered watchpoint, STOPPED_DATA_ADDRESS_P is non-zero, and
@@ -105,7 +93,7 @@ struct lwp_info
      Values:
      - TARGET_WAITKIND_SYSCALL_ENTRY
      - TARGET_WAITKIND_SYSCALL_RETURN */
-  int syscall_state;
+  enum target_waitkind syscall_state;
 
   /* The processor core this LWP was last seen on.  */
   int core;
@@ -122,21 +110,24 @@ struct lwp_info
    native target is active.  */
 extern struct lwp_info *lwp_list;
 
+/* Does the current host support PTRACE_GETREGSET?  */
+extern enum tribool have_ptrace_getregset;
+
 /* Iterate over each active thread (light-weight process).  */
 #define ALL_LWPS(LP)							\
   for ((LP) = lwp_list;							\
        (LP) != NULL;							\
        (LP) = (LP)->next)
 
-#define GET_LWP(ptid)		ptid_get_lwp (ptid)
-#define GET_PID(ptid)		ptid_get_pid (ptid)
-#define is_lwp(ptid)		(GET_LWP (ptid) != 0)
-#define BUILD_LWP(lwp, pid)	ptid_build (pid, lwp, 0)
-
 /* Attempt to initialize libthread_db.  */
 void check_for_thread_db (void);
 
-int thread_db_attach_lwp (ptid_t ptid);
+/* Called from the LWP layer to inform the thread_db layer that PARENT
+   spawned CHILD.  Both LWPs are currently stopped.  This function
+   does whatever is required to have the child LWP under the
+   thread_db's control --- e.g., enabling event reporting.  Returns
+   true on success, false if the process isn't using libpthread.  */
+extern int thread_db_notice_clone (ptid_t parent, ptid_t child);
 
 /* Return the set of signals used by the threads library.  */
 extern void lin_thread_get_thread_signals (sigset_t *mask);
@@ -145,18 +136,16 @@ extern void lin_thread_get_thread_signals (sigset_t *mask);
 void linux_proc_pending_signals (int pid, sigset_t *pending,
 				 sigset_t *blocked, sigset_t *ignored);
 
-/* linux-nat functions for handling fork events.  */
-extern void linux_enable_event_reporting (ptid_t ptid);
+/* For linux_stop_lwp see nat/linux-nat.h.  */
 
-extern int lin_lwp_attach_lwp (ptid_t ptid);
+/* Stop all LWPs, synchronously.  (Any events that trigger while LWPs
+   are being stopped are left pending.)  */
+extern void linux_stop_and_wait_all_lwps (void);
 
-extern void linux_stop_lwp (struct lwp_info *lwp);
-
-/* Iterator function for lin-lwp's lwp list.  */
-struct lwp_info *iterate_over_lwps (ptid_t filter,
-				    int (*callback) (struct lwp_info *,
-						     void *), 
-				    void *data);
+/* Set resumed LWPs running again, as they were before being stopped
+   with linux_stop_and_wait_all_lwps.  (LWPS with pending events are
+   left stopped.)  */
+extern void linux_unstop_all_lwps (void);
 
 /* Create a prototype generic GNU/Linux target.  The client can
    override it with local methods.  */
@@ -174,11 +163,28 @@ void linux_nat_add_target (struct target_ops *);
 /* Register a method to call whenever a new thread is attached.  */
 void linux_nat_set_new_thread (struct target_ops *, void (*) (struct lwp_info *));
 
+
+/* Register a method to call whenever a new fork is attached.  */
+typedef void (linux_nat_new_fork_ftype) (struct lwp_info *parent,
+					 pid_t child_pid);
+void linux_nat_set_new_fork (struct target_ops *ops,
+			     linux_nat_new_fork_ftype *fn);
+
+/* Register a method to call whenever a process is killed or
+   detached.  */
+typedef void (linux_nat_forget_process_ftype) (pid_t pid);
+void linux_nat_set_forget_process (struct target_ops *ops,
+				   linux_nat_forget_process_ftype *fn);
+
+/* Call the method registered with the function above.  PID is the
+   process to forget about.  */
+void linux_nat_forget_process (pid_t pid);
+
 /* Register a method that converts a siginfo object between the layout
    that ptrace returns, and the layout in the architecture of the
    inferior.  */
 void linux_nat_set_siginfo_fixup (struct target_ops *,
-				  int (*) (struct siginfo *,
+				  int (*) (siginfo_t *,
 					   gdb_byte *,
 					   int));
 
@@ -191,11 +197,10 @@ void linux_nat_set_prepare_to_resume (struct target_ops *,
    to another.  */
 void linux_nat_switch_fork (ptid_t new_ptid);
 
-/* Return the saved siginfo associated with PTID.  */
-struct siginfo *linux_nat_get_siginfo (ptid_t ptid);
-
-/* Compute and return the processor core of a given thread.  */
-int linux_nat_core_of_thread_1 (ptid_t ptid);
+/* Store the saved siginfo associated with PTID in *SIGINFO.
+   Return 1 if it was retrieved successfully, 0 otherwise (*SIGINFO is
+   uninitialized in such case).  */
+int linux_nat_get_siginfo (ptid_t ptid, siginfo_t *siginfo);
 
 /* Set alternative SIGTRAP-like events recognizer.  */
 void linux_nat_set_status_is_event (struct target_ops *t,