gdbserver: turn target op 'emit_ops' into a method
[deliverable/binutils-gdb.git] / gdbserver / target.h
index 96d986a09abb4076cc924c81ce1c34c84c0db630..0d51af7965cf3699b96ecf535308e24f1715ea3e 100644 (file)
@@ -70,84 +70,9 @@ class process_target;
    shared code.  */
 struct process_stratum_target
 {
-  /* Read loadmaps.  Read LEN bytes at OFFSET into a buffer at MYADDR.  */
-  int (*read_loadmap) (const char *annex, CORE_ADDR offset,
-                      unsigned char *myaddr, unsigned int len);
-
-  /* Target specific qSupported support.  FEATURES is an array of
-     features with COUNT elements.  */
-  void (*process_qsupported) (char **features, int count);
-
-  /* Return 1 if the target supports tracepoints, 0 (or leave the
-     callback NULL) otherwise.  */
-  int (*supports_tracepoints) (void);
-
-  /* Read PC from REGCACHE.  */
-  CORE_ADDR (*read_pc) (struct regcache *regcache);
-
-  /* Write PC to REGCACHE.  */
-  void (*write_pc) (struct regcache *regcache, CORE_ADDR pc);
-
-  /* Return true if THREAD is known to be stopped now.  */
-  int (*thread_stopped) (struct thread_info *thread);
-
-  /* Read Thread Information Block address.  */
-  int (*get_tib_address) (ptid_t ptid, CORE_ADDR *address);
-
-  /* Pause all threads.  If FREEZE, arrange for any resume attempt to
-     be ignored until an unpause_all call unfreezes threads again.
-     There can be nested calls to pause_all, so a freeze counter
-     should be maintained.  */
-  void (*pause_all) (int freeze);
-
-  /* Unpause all threads.  Threads that hadn't been resumed by the
-     client should be left stopped.  Basically a pause/unpause call
-     pair should not end up resuming threads that were stopped before
-     the pause call.  */
-  void (*unpause_all) (int unfreeze);
-
-  /* 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.  If a trampoline is created by the function,
-     then TRAMPOLINE and TRAMPOLINE_SIZE return the address and size of
-     the trampoline, else they remain unchanged.  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.  If an error occurs, the ERR may be used to pass on an error
-     message.  */
-  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,
-                                          CORE_ADDR *trampoline,
-                                          ULONGEST *trampoline_size,
-                                          unsigned char *jjump_pad_insn,
-                                          ULONGEST *jjump_pad_insn_size,
-                                          CORE_ADDR *adjusted_insn_addr,
-                                          CORE_ADDR *adjusted_insn_addr_end,
-                                          char *err);
-
-  /* Return the bytecode operations vector for the current inferior.
-     Returns NULL if bytecode compilation is not supported.  */
-  struct emit_ops *(*emit_ops) (void);
-
   /* Returns true if the target supports disabling randomization.  */
   int (*supports_disable_randomization) (void);
 
-  /* Return the minimum length of an instruction that can be safely overwritten
-     for use as a fast tracepoint.  */
-  int (*get_min_fast_tracepoint_insn_len) (void);
-
   /* Read solib info on SVR4 platforms.  */
   int (*qxfer_libraries_svr4) (const char *annex, unsigned char *readbuf,
                               unsigned const char *writebuf,
@@ -486,6 +411,88 @@ public:
 
   /* Returns the core given a thread, or -1 if not known.  */
   virtual int core_of_thread (ptid_t ptid);
+
+  /* Returns true if the read_loadmap target op is supported.  */
+  virtual bool supports_read_loadmap ();
+
+  /* Read loadmaps.  Read LEN bytes at OFFSET into a buffer at MYADDR.  */
+  virtual int read_loadmap (const char *annex, CORE_ADDR offset,
+                           unsigned char *myaddr, unsigned int len);
+
+  /* Target specific qSupported support.  FEATURES is an array of
+     features with COUNT elements.  */
+  virtual void process_qsupported (char **features, int count);
+
+  /* Return true if the target supports tracepoints, false otherwise.  */
+  virtual bool supports_tracepoints ();
+
+  /* Read PC from REGCACHE.  */
+  virtual CORE_ADDR read_pc (regcache *regcache);
+
+  /* Write PC to REGCACHE.  */
+  virtual void write_pc (regcache *regcache, CORE_ADDR pc);
+
+  /* Return true if the thread_stopped op is supported.  */
+  virtual bool supports_thread_stopped ();
+
+  /* Return true if THREAD is known to be stopped now.  */
+  virtual bool thread_stopped (thread_info *thread);
+
+  /* Return true if the get_tib_address op is supported.  */
+  virtual bool supports_get_tib_address ();
+
+  /* Read Thread Information Block address.  */
+  virtual int get_tib_address (ptid_t ptid, CORE_ADDR *address);
+
+  /* Pause all threads.  If FREEZE, arrange for any resume attempt to
+     be ignored until an unpause_all call unfreezes threads again.
+     There can be nested calls to pause_all, so a freeze counter
+     should be maintained.  */
+  virtual void pause_all (bool freeze);
+
+  /* Unpause all threads.  Threads that hadn't been resumed by the
+     client should be left stopped.  Basically a pause/unpause call
+     pair should not end up resuming threads that were stopped before
+     the pause call.  */
+  virtual void unpause_all (bool unfreeze);
+
+  /* Stabilize all threads.  That is, force them out of jump pads.  */
+  virtual void stabilize_threads ();
+
+  /* Return true if the install_fast_tracepoint_jump_pad op is
+     supported.  */
+  virtual bool supports_fast_tracepoints ();
+
+  /* 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.  If a trampoline is created by the function,
+     then TRAMPOLINE and TRAMPOLINE_SIZE return the address and size of
+     the trampoline, else they remain unchanged.  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.  If an error occurs, the ERR may be used to pass on an error
+     message.  */
+  virtual 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,
+     CORE_ADDR *trampoline, ULONGEST *trampoline_size,
+     unsigned char *jjump_pad_insn, ULONGEST *jjump_pad_insn_size,
+     CORE_ADDR *adjusted_insn_addr, CORE_ADDR *adjusted_insn_addr_end,
+     char *err);
+
+  /* Return the minimum length of an instruction that can be safely
+     overwritten for use as a fast tracepoint.  */
+  virtual int get_min_fast_tracepoint_insn_len ();
+
+  /* Return the bytecode operations vector for the current inferior.
+     Returns nullptr if bytecode compilation is not supported.  */
+  virtual struct emit_ops *emit_ops ();
 };
 
 extern process_stratum_target *the_target;
@@ -537,11 +544,7 @@ int kill_inferior (process_info *proc);
   the_target->pt->async (enable)
 
 #define target_process_qsupported(features, count)     \
-  do                                                   \
-    {                                                  \
-      if (the_target->process_qsupported)              \
-       the_target->process_qsupported (features, count); \
-    } while (0)
+  the_target->pt->process_qsupported (features, count)
 
 #define target_supports_catch_syscall()                \
   (the_target->supports_catch_syscall ?                        \
@@ -552,63 +555,49 @@ int kill_inferior (process_info *proc);
    ? (*the_target->get_ipa_tdesc_idx) () : 0)
 
 #define target_supports_tracepoints()                  \
-  (the_target->supports_tracepoints                    \
-   ? (*the_target->supports_tracepoints) () : 0)
+  the_target->pt->supports_tracepoints ()
 
 #define target_supports_fast_tracepoints()             \
-  (the_target->install_fast_tracepoint_jump_pad != NULL)
+  the_target->pt->supports_fast_tracepoints ()
 
 #define target_get_min_fast_tracepoint_insn_len()      \
-  (the_target->get_min_fast_tracepoint_insn_len                \
-   ? (*the_target->get_min_fast_tracepoint_insn_len) () : 0)
-
-#define thread_stopped(thread) \
-  (*the_target->thread_stopped) (thread)
-
-#define pause_all(freeze)                      \
-  do                                           \
-    {                                          \
-      if (the_target->pause_all)               \
-       (*the_target->pause_all) (freeze);      \
-    } while (0)
-
-#define unpause_all(unfreeze)                  \
-  do                                           \
-    {                                          \
-      if (the_target->unpause_all)             \
-       (*the_target->unpause_all) (unfreeze);  \
-    } 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,                    \
-                                        trampoline, trampoline_size,   \
-                                        jjump_pad_insn,                \
-                                        jjump_pad_insn_size,           \
-                                        adjusted_insn_addr,            \
-                                        adjusted_insn_addr_end,        \
-                                        err)                           \
-  (*the_target->install_fast_tracepoint_jump_pad) (tpoint, tpaddr,     \
-                                                  collector,lockaddr,  \
-                                                  orig_size, jump_entry, \
-                                                  trampoline,          \
-                                                  trampoline_size,     \
-                                                  jjump_pad_insn,      \
-                                                  jjump_pad_insn_size, \
-                                                  adjusted_insn_addr,  \
-                                                  adjusted_insn_addr_end, \
-                                                  err)
+  the_target->pt->get_min_fast_tracepoint_insn_len ()
+
+#define target_thread_stopped(thread) \
+  the_target->pt->thread_stopped (thread)
+
+#define target_pause_all(freeze)               \
+  the_target->pt->pause_all (freeze)
+
+#define target_unpause_all(unfreeze)           \
+  the_target->pt->unpause_all (unfreeze)
+
+#define target_stabilize_threads()             \
+  the_target->pt->stabilize_threads ()
+
+#define target_install_fast_tracepoint_jump_pad(tpoint, tpaddr,                \
+                                               collector, lockaddr,    \
+                                               orig_size,              \
+                                               jump_entry,             \
+                                               trampoline, trampoline_size, \
+                                               jjump_pad_insn,         \
+                                               jjump_pad_insn_size,    \
+                                               adjusted_insn_addr,     \
+                                               adjusted_insn_addr_end, \
+                                               err)                    \
+  the_target->pt->install_fast_tracepoint_jump_pad (tpoint, tpaddr,    \
+                                                   collector,lockaddr, \
+                                                   orig_size, jump_entry, \
+                                                   trampoline,         \
+                                                   trampoline_size,    \
+                                                   jjump_pad_insn,     \
+                                                   jjump_pad_insn_size, \
+                                                   adjusted_insn_addr, \
+                                                   adjusted_insn_addr_end, \
+                                                   err)
 
 #define target_emit_ops() \
-  (the_target->emit_ops ? (*the_target->emit_ops) () : NULL)
+  the_target->pt->emit_ops ()
 
 #define target_supports_disable_randomization() \
   (the_target->supports_disable_randomization ? \
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