X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gdb%2Flinux-nat.h;h=7bdeb314a6639ea8721916307fa79ce7d61b1d06;hb=41549dfbcc747d0dc4a97c9a427c3a29e9878f05;hp=3e2c6f41586e85b48dd51509b74d83eeeb0a8611;hpb=3d799a954241be52d355c2cf9da71da8e90b0c6a;p=external%2Fbinutils.git

diff --git a/gdb/linux-nat.h b/gdb/linux-nat.h
index 3e2c6f4..7bdeb31 100644
--- a/gdb/linux-nat.h
+++ b/gdb/linux-nat.h
@@ -1,13 +1,12 @@
 /* Native debugging support for GNU/Linux (LWP layer).
 
-   Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006
-   Free Software Foundation, Inc.
+   Copyright (C) 2000-2016 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    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,
@@ -16,13 +15,17 @@
    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., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+#include "nat/linux-nat.h"
 #include "target.h"
+#include <signal.h>
 
-/* Structure describing an LWP.  */
+struct arch_lwp_info;
+
+/* Structure describing an LWP.  This is public only for the purposes
+   of ALL_LWPS; target-specific code should generally not access it
+   directly.  */
 
 struct lwp_info
 {
@@ -30,10 +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).  */
@@ -50,48 +52,156 @@ struct lwp_info
      didn't try to let the LWP run.  */
   int resumed;
 
+  /* The last resume GDB requested on this thread.  */
+  enum resume_kind last_resume_kind;
+
   /* 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;
 
+  /* 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
+     STOPPED_DATA_ADDRESS contains such data address.  Otherwise,
+     STOPPED_DATA_ADDRESS_P is false, and STOPPED_DATA_ADDRESS is
+     undefined.  Only valid if STOPPED_BY_WATCHPOINT is true.  */
+  int stopped_data_address_p;
+  CORE_ADDR stopped_data_address;
+
+  /* Non-zero if we expect a duplicated SIGINT.  */
+  int ignore_sigint;
+
   /* If WAITSTATUS->KIND != TARGET_WAITKIND_SPURIOUS, the waitstatus
      for this LWP's last event.  This may correspond to STATUS above,
      or to a local variable in lin_lwp_wait.  */
   struct target_waitstatus waitstatus;
 
+  /* Signal wether we are in a SYSCALL_ENTRY or
+     in a SYSCALL_RETURN event.
+     Values:
+     - TARGET_WAITKIND_SYSCALL_ENTRY
+     - TARGET_WAITKIND_SYSCALL_RETURN */
+  enum target_waitkind syscall_state;
+
+  /* The processor core this LWP was last seen on.  */
+  int core;
+
+  /* Arch-specific additions.  */
+  struct arch_lwp_info *arch_private;
+
   /* Next LWP in list.  */
   struct lwp_info *next;
 };
 
+/* The global list of LWPs, for ALL_LWPS.  Unlike the threads list,
+   there is always at least one LWP on the list while the GNU/Linux
+   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)
+
 /* Attempt to initialize libthread_db.  */
 void check_for_thread_db (void);
 
-/* Tell the thread_db layer what native target operations to use.  */
-void thread_db_init (struct target_ops *);
+/* 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);
 
 /* Find process PID's pending signal set from /proc/pid/status.  */
-void linux_proc_pending_signals (int pid, sigset_t *pending, sigset_t *blocked, sigset_t *ignored);
+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, int verbose);
+/* 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);
 
-/* Iterator function for lin-lwp's lwp list.  */
-struct lwp_info *iterate_over_lwps (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.  */
 struct target_ops * linux_target (void);
 
+/* Create a generic GNU/Linux target using traditional 
+   ptrace register access.  */
+struct target_ops *
+linux_trad_target (CORE_ADDR (*register_u_offset)(struct gdbarch *, int, int));
+
 /* Register the customized GNU/Linux target.  This should be used
    instead of calling add_target directly.  */
 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 (*) (siginfo_t *,
+					   gdb_byte *,
+					   int));
+
+/* Register a method to call prior to resuming a thread.  */
+
+void linux_nat_set_prepare_to_resume (struct target_ops *,
+				      void (*) (struct lwp_info *));
+
 /* Update linux-nat internal state when changing from one fork
    to another.  */
 void linux_nat_switch_fork (ptid_t new_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,
+				    int (*status_is_event) (int status));