Drop 'regset_from_core_section' gdbarch method

Now that all instances of the regset_from_core_section gdbarch method
have been replaced by the new iterator method, delete the obsolete
method from the gdbarch interface.  Adjust all invocations and
references to it.

gdb/ChangeLog:

	* gdbarch.sh (regset_from_core_section): Remove gdbarch method.
	* gdbarch.c: Regenerate.
	* gdbarch.h: Likewise.
	* corelow.c (sniff_core_bfd): Drop presence check for deleted
	gdbarch method 'regset_from_core_section'.
	(get_core_register_section): Remove handling for the case that
	regset == NULL and regset_from_core_section is defined.
	(get_core_registers): Drop check for deleted method.
	* procfs.c (procfs_do_thread_registers): Adjust comment.

6 files changed, 15 insertions, 66 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 9a665d4..f328214 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,17 @@
 2014-09-30  Andreas Arnez  <arnez@linux.vnet.ibm.com>
 
+	* gdbarch.sh (regset_from_core_section): Remove gdbarch method.
+	* gdbarch.c: Regenerate.
+	* gdbarch.h: Likewise.
+	* corelow.c (sniff_core_bfd): Drop presence check for deleted
+	gdbarch method 'regset_from_core_section'.
+	(get_core_register_section): Remove handling for the case that
+	regset == NULL and regset_from_core_section is defined.
+	(get_core_registers): Drop check for deleted method.
+	* procfs.c (procfs_do_thread_registers): Adjust comment.
+
+2014-09-30  Andreas Arnez  <arnez@linux.vnet.ibm.com>
+
 	* linux-nat.c (linux_nat_collect_thread_registers): Remove.
 	(linux_nat_make_corefile_notes): Remove.
 	(linux_target_install_ops): Do not set target method
diff --git a/gdb/corelow.c b/gdb/corelow.c
index 42af7f4..30d3367 100644
--- a/gdb/corelow.c
+++ b/gdb/corelow.c
@@ -134,9 +134,7 @@ sniff_core_bfd (bfd *abfd)
 
   /* Don't sniff if we have support for register sets in
      CORE_GDBARCH.  */
-  if (core_gdbarch
-      && (gdbarch_iterate_over_regset_sections_p (core_gdbarch)
-	  || gdbarch_regset_from_core_section_p (core_gdbarch)))
+  if (core_gdbarch && gdbarch_iterate_over_regset_sections_p (core_gdbarch))
     return NULL;
 
   for (cf = core_file_fns; cf != NULL; cf = cf->next)
@@ -536,20 +534,6 @@ get_core_register_section (struct regcache *regcache,
       return;
     }
 
-  if (regset == NULL
-      && core_gdbarch && gdbarch_regset_from_core_section_p (core_gdbarch))
-    {
-      regset = gdbarch_regset_from_core_section (core_gdbarch,
-						 name, size);
-      if (regset == NULL)
-	{
-	  if (required)
-	    warning (_("Couldn't recognize %s registers in core file."),
-		     human_name);
-	  return;
-	}
-    }
-
   if (regset != NULL)
     {
       regset->supply_regset (regset, regcache, -1, contents, size);
@@ -605,9 +589,7 @@ get_core_registers (struct target_ops *ops,
   int i;
   struct gdbarch *gdbarch;
 
-  if (!(core_gdbarch
-	&& (gdbarch_iterate_over_regset_sections_p (core_gdbarch)
-	    || gdbarch_regset_from_core_section_p (core_gdbarch)))
+  if (!(core_gdbarch && gdbarch_iterate_over_regset_sections_p (core_gdbarch))
       && (core_vec == NULL || core_vec->core_read_registers == NULL))
     {
       fprintf_filtered (gdb_stderr,
diff --git a/gdb/gdbarch.c b/gdb/gdbarch.c
index be4bb78..e96d651 100644
--- a/gdb/gdbarch.c
+++ b/gdb/gdbarch.c
@@ -259,7 +259,6 @@ struct gdbarch
   gdbarch_address_class_name_to_type_flags_ftype *address_class_name_to_type_flags;
   gdbarch_register_reggroup_p_ftype *register_reggroup_p;
   gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument;
-  gdbarch_regset_from_core_section_ftype *regset_from_core_section;
   gdbarch_iterate_over_regset_sections_ftype *iterate_over_regset_sections;
   gdbarch_make_corefile_notes_ftype *make_corefile_notes;
   gdbarch_elfcore_write_linux_prpsinfo_ftype *elfcore_write_linux_prpsinfo;
@@ -570,7 +569,6 @@ verify_gdbarch (struct gdbarch *gdbarch)
   /* Skip verify of address_class_name_to_type_flags, has predicate.  */
   /* Skip verify of register_reggroup_p, invalid_p == 0 */
   /* Skip verify of fetch_pointer_argument, has predicate.  */
-  /* Skip verify of regset_from_core_section, has predicate.  */
   /* Skip verify of iterate_over_regset_sections, has predicate.  */
   /* Skip verify of make_corefile_notes, has predicate.  */
   /* Skip verify of elfcore_write_linux_prpsinfo, has predicate.  */
@@ -1144,12 +1142,6 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
                       "gdbarch_dump: register_type = <%s>\n",
                       host_address_to_string (gdbarch->register_type));
   fprintf_unfiltered (file,
-                      "gdbarch_dump: gdbarch_regset_from_core_section_p() = %d\n",
-                      gdbarch_regset_from_core_section_p (gdbarch));
-  fprintf_unfiltered (file,
-                      "gdbarch_dump: regset_from_core_section = <%s>\n",
-                      host_address_to_string (gdbarch->regset_from_core_section));
-  fprintf_unfiltered (file,
                       "gdbarch_dump: gdbarch_relocate_instruction_p() = %d\n",
                       gdbarch_relocate_instruction_p (gdbarch));
   fprintf_unfiltered (file,
@@ -3241,30 +3233,6 @@ set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch,
 }
 
 int
-gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch)
-{
-  gdb_assert (gdbarch != NULL);
-  return gdbarch->regset_from_core_section != NULL;
-}
-
-const struct regset *
-gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size)
-{
-  gdb_assert (gdbarch != NULL);
-  gdb_assert (gdbarch->regset_from_core_section != NULL);
-  if (gdbarch_debug >= 2)
-    fprintf_unfiltered (gdb_stdlog, "gdbarch_regset_from_core_section called\n");
-  return gdbarch->regset_from_core_section (gdbarch, sect_name, sect_size);
-}
-
-void
-set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch,
-                                      gdbarch_regset_from_core_section_ftype regset_from_core_section)
-{
-  gdbarch->regset_from_core_section = regset_from_core_section;
-}
-
-int
 gdbarch_iterate_over_regset_sections_p (struct gdbarch *gdbarch)
 {
   gdb_assert (gdbarch != NULL);
diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h
index 90a63ca..6e84004 100644
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -736,15 +736,6 @@ typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *fra
 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
 
-/* Return the appropriate register set for a core file section with
-   name SECT_NAME and size SECT_SIZE. */
-
-extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
-
-typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
-extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
-extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
-
 /* Iterate over all supported register notes in a core file.  For each
    supported register note section, the iterator must call CB and pass
    CB_DATA unchanged.  If REGCACHE is not NULL, the iterator can limit
diff --git a/gdb/gdbarch.sh b/gdb/gdbarch.sh
index 293854f..c785887 100755
--- a/gdb/gdbarch.sh
+++ b/gdb/gdbarch.sh
@@ -651,10 +651,6 @@ m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup
 # Fetch the pointer to the ith function argument.
 F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
 
-# Return the appropriate register set for a core file section with
-# name SECT_NAME and size SECT_SIZE.
-M:const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
-
 # Iterate over all supported register notes in a core file.  For each
 # supported register note section, the iterator must call CB and pass
 # CB_DATA unchanged.  If REGCACHE is not NULL, the iterator can limit
diff --git a/gdb/procfs.c b/gdb/procfs.c
index 699fcd9..15a0409 100644
--- a/gdb/procfs.c
+++ b/gdb/procfs.c
@@ -5334,7 +5334,7 @@ procfs_do_thread_registers (bfd *obfd, ptid_t ptid,
   /* This part is the old method for fetching registers.
      It should be replaced by the newer one using regsets
      once it is implemented in this platform:
-     gdbarch_regset_from_core_section() and regset->collect_regset().  */
+     gdbarch_iterate_over_regset_sections().  */
 
   old_chain = save_inferior_ptid ();
   inferior_ptid = ptid;