Delete target_so_ops->special_symbol_handling hook

No one(!) actually implements this hook. So simply delete it.

gdb/ChangeLog:

	* solist.h (struct target_so_ops): Delete special_symbol_handling
	hook.
	* solib.c (solib_add, reload_shared_libraries): Adjust.
	* solib-aix.c (solib_aix_special_symbol_handling): Delete
	(_initialize_solib_aix): Adjust
	* solib-darwin.c (darwin_special_symbol_handling): Delete
	(_initialize_darwin_solib): Adjust
	* solib-dsbt.c (dsbt_special_symbol_handling): Delete
	(_initialize_dsbt_solib): Adjust
	* solib-frv.c (frv_special_symbol_handling): Delete
	(_initialize_frv_solib): Adjust
	* solib-svr4.c (svr4_special_symbol_handling): Delete
	(_initialize_svr4_solib): Adjust
	* solib-target.c (solib_target_special_symbol_handling): Delete
	(_initialize_solib_target): Adjust

9 files changed, 18 insertions, 67 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index ab3f5d4..a8ab8b0 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,21 @@
+2016-10-21  Philipp Rudo  <prudo@linux.vnet.ibm.com>
+
+	* solist.h (struct target_so_ops): Delete special_symbol_handling
+	hook.
+	* solib.c (solib_add, reload_shared_libraries): Adjust.
+	* solib-aix.c (solib_aix_special_symbol_handling): Delete
+	(_initialize_solib_aix): Adjust
+	* solib-darwin.c (darwin_special_symbol_handling): Delete
+	(_initialize_darwin_solib): Adjust
+	* solib-dsbt.c (dsbt_special_symbol_handling): Delete
+	(_initialize_dsbt_solib): Adjust
+	* solib-frv.c (frv_special_symbol_handling): Delete
+	(_initialize_frv_solib): Adjust
+	* solib-svr4.c (svr4_special_symbol_handling): Delete
+	(_initialize_svr4_solib): Adjust
+	* solib-target.c (solib_target_special_symbol_handling): Delete
+	(_initialize_solib_target): Adjust
+
 2016-10-20  Yao Qi  <yao.qi@linaro.org>
 
 	* configure.tgt: Don't configure if target is *-*-vxworks*.
diff --git a/gdb/solib-aix.c b/gdb/solib-aix.c
index 9daf7e1..75634df 100644
--- a/gdb/solib-aix.c
+++ b/gdb/solib-aix.c
@@ -548,14 +548,6 @@ solib_aix_solib_create_inferior_hook (int from_tty)
     }
 }
 
-/* Implement the "special_symbol_handling" target_so_ops method.  */
-
-static void
-solib_aix_special_symbol_handling (void)
-{
-  /* Nothing needed.  */
-}
-
 /* Implement the "current_sos" target_so_ops method.  */
 
 static struct so_list *
@@ -832,8 +824,6 @@ _initialize_solib_aix (void)
   solib_aix_so_ops.clear_solib = solib_aix_clear_solib;
   solib_aix_so_ops.solib_create_inferior_hook
     = solib_aix_solib_create_inferior_hook;
-  solib_aix_so_ops.special_symbol_handling
-    = solib_aix_special_symbol_handling;
   solib_aix_so_ops.current_sos = solib_aix_current_sos;
   solib_aix_so_ops.open_symbol_file_object
     = solib_aix_open_symbol_file_object;
diff --git a/gdb/solib-darwin.c b/gdb/solib-darwin.c
index cd5dc8d..24cf848 100644
--- a/gdb/solib-darwin.c
+++ b/gdb/solib-darwin.c
@@ -423,14 +423,6 @@ darwin_in_dynsym_resolve_code (CORE_ADDR pc)
   return 0;
 }
 
-
-/* No special symbol handling.  */
-
-static void
-darwin_special_symbol_handling (void)
-{
-}
-
 /* A wrapper for bfd_mach_o_fat_extract that handles reference
    counting properly.  This will either return NULL, or return a new
    reference to a BFD.  */
@@ -693,7 +685,6 @@ _initialize_darwin_solib (void)
   darwin_so_ops.free_so = darwin_free_so;
   darwin_so_ops.clear_solib = darwin_clear_solib;
   darwin_so_ops.solib_create_inferior_hook = darwin_solib_create_inferior_hook;
-  darwin_so_ops.special_symbol_handling = darwin_special_symbol_handling;
   darwin_so_ops.current_sos = darwin_current_sos;
   darwin_so_ops.open_symbol_file_object = open_symbol_file_object;
   darwin_so_ops.in_dynsym_resolve_code = darwin_in_dynsym_resolve_code;
diff --git a/gdb/solib-dsbt.c b/gdb/solib-dsbt.c
index ad79af0..d66fe5d 100644
--- a/gdb/solib-dsbt.c
+++ b/gdb/solib-dsbt.c
@@ -917,15 +917,6 @@ enable_break (void)
   return 0;
 }
 
-/* Once the symbols from a shared object have been loaded in the usual
-   way, we are called to do any system specific symbol handling that
-   is needed.  */
-
-static void
-dsbt_special_symbol_handling (void)
-{
-}
-
 static void
 dsbt_relocate_main_executable (void)
 {
@@ -1074,7 +1065,6 @@ _initialize_dsbt_solib (void)
   dsbt_so_ops.free_so = dsbt_free_so;
   dsbt_so_ops.clear_solib = dsbt_clear_solib;
   dsbt_so_ops.solib_create_inferior_hook = dsbt_solib_create_inferior_hook;
-  dsbt_so_ops.special_symbol_handling = dsbt_special_symbol_handling;
   dsbt_so_ops.current_sos = dsbt_current_sos;
   dsbt_so_ops.open_symbol_file_object = open_symbol_file_object;
   dsbt_so_ops.in_dynsym_resolve_code = dsbt_in_dynsym_resolve_code;
diff --git a/gdb/solib-frv.c b/gdb/solib-frv.c
index 56ccb88..61a4ed0 100644
--- a/gdb/solib-frv.c
+++ b/gdb/solib-frv.c
@@ -762,14 +762,6 @@ enable_break (void)
   return 1;
 }
 
-/* Implement the "special_symbol_handling" target_so_ops method.  */
-
-static void
-frv_special_symbol_handling (void)
-{
-  /* Nothing needed for FRV.  */
-}
-
 static void
 frv_relocate_main_executable (void)
 {
@@ -1175,7 +1167,6 @@ _initialize_frv_solib (void)
   frv_so_ops.free_so = frv_free_so;
   frv_so_ops.clear_solib = frv_clear_solib;
   frv_so_ops.solib_create_inferior_hook = frv_solib_create_inferior_hook;
-  frv_so_ops.special_symbol_handling = frv_special_symbol_handling;
   frv_so_ops.current_sos = frv_current_sos;
   frv_so_ops.open_symbol_file_object = open_symbol_file_object;
   frv_so_ops.in_dynsym_resolve_code = frv_in_dynsym_resolve_code;
diff --git a/gdb/solib-svr4.c b/gdb/solib-svr4.c
index fe36d45..258d7dc 100644
--- a/gdb/solib-svr4.c
+++ b/gdb/solib-svr4.c
@@ -2552,14 +2552,6 @@ enable_break (struct svr4_info *info, int from_tty)
   return 0;
 }
 
-/* Implement the "special_symbol_handling" target_so_ops method.  */
-
-static void
-svr4_special_symbol_handling (void)
-{
-  /* Nothing to do.  */
-}
-
 /* Read the ELF program headers from ABFD.  Return the contents and
    set *PHDRS_SIZE to the size of the program headers.  */
 
@@ -3327,7 +3319,6 @@ _initialize_svr4_solib (void)
   svr4_so_ops.clear_so = svr4_clear_so;
   svr4_so_ops.clear_solib = svr4_clear_solib;
   svr4_so_ops.solib_create_inferior_hook = svr4_solib_create_inferior_hook;
-  svr4_so_ops.special_symbol_handling = svr4_special_symbol_handling;
   svr4_so_ops.current_sos = svr4_current_sos;
   svr4_so_ops.open_symbol_file_object = open_symbol_file_object;
   svr4_so_ops.in_dynsym_resolve_code = svr4_in_dynsym_resolve_code;
diff --git a/gdb/solib-target.c b/gdb/solib-target.c
index e635044..fdb7b65 100644
--- a/gdb/solib-target.c
+++ b/gdb/solib-target.c
@@ -310,12 +310,6 @@ solib_target_current_sos (void)
 }
 
 static void
-solib_target_special_symbol_handling (void)
-{
-  /* Nothing needed.  */
-}
-
-static void
 solib_target_solib_create_inferior_hook (int from_tty)
 {
   /* Nothing needed.  */
@@ -503,8 +497,6 @@ _initialize_solib_target (void)
   solib_target_so_ops.clear_solib = solib_target_clear_solib;
   solib_target_so_ops.solib_create_inferior_hook
     = solib_target_solib_create_inferior_hook;
-  solib_target_so_ops.special_symbol_handling
-    = solib_target_special_symbol_handling;
   solib_target_so_ops.current_sos = solib_target_current_sos;
   solib_target_so_ops.open_symbol_file_object
     = solib_target_open_symbol_file_object;
diff --git a/gdb/solib.c b/gdb/solib.c
index 2235505..b8c2b42 100644
--- a/gdb/solib.c
+++ b/gdb/solib.c
@@ -1038,13 +1038,9 @@ solib_add (const char *pattern, int from_tty,
 
     if (loaded_any_symbols)
       {
-	const struct target_so_ops *ops = solib_ops (target_gdbarch ());
-
 	/* Getting new symbols may change our opinion about what is
 	   frameless.  */
 	reinit_frame_cache ();
-
-	ops->special_symbol_handling ();
       }
   }
 }
@@ -1468,8 +1464,6 @@ reload_shared_libraries (char *ignored, int from_tty,
      structures that are now freed.  Also, getting new symbols may
      change our opinion about what is frameless.  */
   reinit_frame_cache ();
-
-  ops->special_symbol_handling ();
 }
 
 /* Wrapper for reload_shared_libraries that replaces "remote:"
diff --git a/gdb/solist.h b/gdb/solist.h
index 1bdfbaf..f709483 100644
--- a/gdb/solist.h
+++ b/gdb/solist.h
@@ -100,12 +100,6 @@ struct target_so_ops
     /* Target dependent code to run after child process fork.  */
     void (*solib_create_inferior_hook) (int from_tty);
 
-    /* Do additional symbol handling, lookup, etc. after symbols for a
-       shared object have been loaded in the usual way.  This is
-       called to do any system specific symbol handling that might be
-       needed.  */
-    void (*special_symbol_handling) (void);
-
     /* Construct a list of the currently loaded shared objects.  This
        list does not include an entry for the main executable file.