Re: [obish] -Wunused-function warnings

[Andrew Cagney <cagney at gnu dot org>]

> On Mon, 19 Jan 2004 13:31:23 -0500
> Andrew Cagney <cagney@gnu.org> wrote:
>
>
> > src/gdb/ia64-tdep.c:3261: warning: `process_note_abi_tag_sections' defined but not used
> > src/gdb/ia64-tdep.c:342: warning: `read_sigcontext_register' defined but not used
> > src/gdb/ia64-tdep.c:654: warning: `ia64_read_fp' defined but not used
>
>
> It appears to me that it's safe to remove these function definitions.
>
> Jeff, would mind trying it out?  If everything still builds and runs
> okay, the patch which removes these definitions is preapproved.

I've done this, committing the attached.

Andrew

2004-02-03  Andrew Cagney  <cagney@redhat.com>

	* ia64-tdep.c (read_sigcontext_register): Delete unused function.
	(process_note_abi_tag_sections): Delete unused function.
	(ia64_read_fp): Delete unused function.
	(gdbarch_extract_struct_value_address): Delete declaration.

Index: ia64-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/ia64-tdep.c,v
retrieving revision 1.110
diff -u -r1.110 ia64-tdep.c
--- ia64-tdep.c	26 Jan 2004 20:52:10 -0000	1.110
+++ ia64-tdep.c	3 Feb 2004 22:20:51 -0000
@@ -102,7 +102,6 @@
 static gdbarch_breakpoint_from_pc_ftype ia64_breakpoint_from_pc;
 static gdbarch_skip_prologue_ftype ia64_skip_prologue;
 static gdbarch_extract_return_value_ftype ia64_extract_return_value;
-static gdbarch_extract_struct_value_address_ftype ia64_extract_struct_value_address;
 static gdbarch_use_struct_convention_ftype ia64_use_struct_convention;
 static struct type *is_float_or_hfa_type (struct type *t);
 
@@ -334,32 +333,6 @@
 };
 
 
-/* Read the given register from a sigcontext structure in the
-   specified frame.  */
-
-static CORE_ADDR
-read_sigcontext_register (struct frame_info *frame, int regnum)
-{
-  CORE_ADDR regaddr;
-
-  if (frame == NULL)
-    internal_error (__FILE__, __LINE__,
-		    "read_sigcontext_register: NULL frame");
-  if (!(get_frame_type (frame) == SIGTRAMP_FRAME))
-    internal_error (__FILE__, __LINE__,
-		    "read_sigcontext_register: frame not a signal trampoline");
-  if (SIGCONTEXT_REGISTER_ADDRESS == 0)
-    internal_error (__FILE__, __LINE__,
-		    "read_sigcontext_register: SIGCONTEXT_REGISTER_ADDRESS is 0");
-
-  regaddr = SIGCONTEXT_REGISTER_ADDRESS (get_frame_base (frame), regnum);
-  if (regaddr)
-    return read_memory_integer (regaddr, register_size (current_gdbarch, regnum));
-  else
-    internal_error (__FILE__, __LINE__,
-		    "read_sigcontext_register: Register %d not in struct sigcontext", regnum);
-}
-
 /* Extract ``len'' bits from an instruction bundle starting at
    bit ``from''.  */
 
@@ -650,18 +623,6 @@
 }
 
 static CORE_ADDR
-ia64_read_fp (void)
-{
-  /* We won't necessarily have a frame pointer and even if we do, it
-     winds up being extraordinarly messy when attempting to find the
-     frame chain.  So for the purposes of creating frames (which is
-     all deprecated_read_fp() is used for), simply use the stack
-     pointer value instead.  */
-  gdb_assert (SP_REGNUM >= 0);
-  return read_register (SP_REGNUM);
-}
-
-static CORE_ADDR
 ia64_read_pc (ptid_t ptid)
 {
   CORE_ADDR psr_value = read_register_pid (IA64_PSR_REGNUM, ptid);
@@ -3254,53 +3215,6 @@
 {
   *targ_addr = memaddr;
   *targ_len  = nr_bytes;
-}
-
-static void
-process_note_abi_tag_sections (bfd *abfd, asection *sect, void *obj)
-{
-  int *os_ident_ptr = obj;
-  const char *name;
-  unsigned int sectsize;
-
-  name = bfd_get_section_name (abfd, sect);
-  sectsize = bfd_section_size (abfd, sect);
-  if (strcmp (name, ".note.ABI-tag") == 0 && sectsize > 0)
-    {
-      unsigned int name_length, data_length, note_type;
-      char *note = alloca (sectsize);
-
-      bfd_get_section_contents (abfd, sect, note,
-                                (file_ptr) 0, (bfd_size_type) sectsize);
-
-      name_length = bfd_h_get_32 (abfd, note);
-      data_length = bfd_h_get_32 (abfd, note + 4);
-      note_type   = bfd_h_get_32 (abfd, note + 8);
-
-      if (name_length == 4 && data_length == 16 && note_type == 1
-          && strcmp (note + 12, "GNU") == 0)
-	{
-	  int os_number = bfd_h_get_32 (abfd, note + 16);
-
-	  /* The case numbers are from abi-tags in glibc.  */
-	  switch (os_number)
-	    {
-	    case 0 :
-	      *os_ident_ptr = ELFOSABI_LINUX;
-	      break;
-	    case 1 :
-	      *os_ident_ptr = ELFOSABI_HURD;
-	      break;
-	    case 2 :
-	      *os_ident_ptr = ELFOSABI_SOLARIS;
-	      break;
-	    default :
-	      internal_error (__FILE__, __LINE__,
-			      "process_note_abi_sections: unknown OS number %d", os_number);
-	      break;
-	    }
-	}
-    }
 }
 
 static int