gdb/gdbserver/

[external/binutils.git] / gdb / gdbserver / target.h

diff --git a/gdb/gdbserver/target.h b/gdb/gdbserver/target.h
index 4ac55b3..01e7640 100644 (file)
--- a/gdb/gdbserver/target.h
+++ b/gdb/gdbserver/target.h
@@ -324,6 +324,31 @@ struct target_ops
 
   /* Cancel all pending breakpoints hits in all threads.  */
   void (*cancel_breakpoints) (void);
+
+  /* Stabilize all threads.  That is, force them out of jump pads.  */
+  void (*stabilize_threads) (void);
+
+  /* Install a fast tracepoint jump pad.  TPOINT is the address of the
+     tracepoint internal object as used by the IPA agent.  TPADDR is
+     the address of tracepoint.  COLLECTOR is address of the function
+     the jump pad redirects to.  LOCKADDR is the address of the jump
+     pad lock object.  ORIG_SIZE is the size in bytes of the
+     instruction at TPADDR.  JUMP_ENTRY points to the address of the
+     jump pad entry, and on return holds the address past the end of
+     the created jump pad. JJUMP_PAD_INSN is a buffer containing a
+     copy of the instruction at TPADDR.  ADJUST_INSN_ADDR and
+     ADJUST_INSN_ADDR_END are output parameters that return the
+     address range where the instruction at TPADDR was relocated
+     to.  */
+  int (*install_fast_tracepoint_jump_pad) (CORE_ADDR tpoint, CORE_ADDR tpaddr,
+                                          CORE_ADDR collector,
+                                          CORE_ADDR lockaddr,
+                                          ULONGEST orig_size,
+                                          CORE_ADDR *jump_entry,
+                                          unsigned char *jjump_pad_insn,
+                                          ULONGEST *jjump_pad_insn_size,
+                                          CORE_ADDR *adjusted_insn_addr,
+                                          CORE_ADDR *adjusted_insn_addr_end);
 };
 
 extern struct target_ops *the_target;
@@ -378,6 +403,9 @@ void set_target_ops (struct target_ops *);
   (the_target->supports_tracepoints                    \
    ? (*the_target->supports_tracepoints) () : 0)
 
+#define target_supports_fast_tracepoints()             \
+  (the_target->install_fast_tracepoint_jump_pad != NULL)
+
 #define thread_stopped(thread) \
   (*the_target->thread_stopped) (thread)
 
@@ -402,6 +430,28 @@ void set_target_ops (struct target_ops *);
        (*the_target->cancel_breakpoints) ();   \
     } while (0)
 
+#define stabilize_threads()                    \
+  do                                           \
+    {                                          \
+      if (the_target->stabilize_threads)       \
+       (*the_target->stabilize_threads) ();    \
+    } while (0)
+
+#define install_fast_tracepoint_jump_pad(tpoint, tpaddr,               \
+                                        collector, lockaddr,           \
+                                        orig_size,                     \
+                                        jump_entry, jjump_pad_insn,    \
+                                        jjump_pad_insn_size,           \
+                                        adjusted_insn_addr,            \
+                                        adjusted_insn_addr_end)        \
+  (*the_target->install_fast_tracepoint_jump_pad) (tpoint, tpaddr,     \
+                                                  collector,lockaddr,  \
+                                                  orig_size, jump_entry, \
+                                                  jjump_pad_insn,      \
+                                                  jjump_pad_insn_size, \
+                                                  adjusted_insn_addr,  \
+                                                  adjusted_insn_addr_end)
+
 /* Start non-stop mode, returns 0 on success, -1 on failure.   */
 
 int start_non_stop (int nonstop);