2012-11-09 Nick Clifton <nickc@redhat.com>

	* elf32-rx.c (describe_flags): New function.  Returns a buffer
	containing a description of the E_FLAG_RX_... values set.
	(rx_elf_merge_private_bfd_data): Use it.
	(rx_elf_print_private_bfd_data): Likewise.
	(elf32_rx_machine): Skip EF_RX_CPU_RX check.
	(elf32_rx_special_sections): Define.
	(elf_backend_special_sections): Define.

2012-11-09  Nick Clifton  <nickc@redhat.com>

	* readelf.c (get_machine_flags): Add support for E_FLAG_RX_ABI.

2012-11-09  Nick Clifton  <nickc@redhat.com>

	* config/obj-elf.c (obj_elf_change_section): Allow init array
	sections to have the SHF_EXECINSTR attribute for the RX target.
	* config/tc-rx.c (elf_flags): Initialise with E_FLAG_RX_ABI.
	(enum options): Add OPTION_USES_GCC_ABI and OPTION_USES_RX_ABI.
	(md_longopts): Add -mgcc-abi and -mrx-abi.
	(md_parse_option): Add support for OPTION_USES_GCC_ABI and
	OPTION_USES_RX_ABI.
	* doc/as.texinfo (RX Options): Add mention of remaining RX
	options.
	* doc/c-rx.texi: Document -mgcc-abi and -mrx-abi.

2012-11-09  Nick Clifton  <nickc@redhat.com>

	* rx.h (EF_RX_CPU_RX): Add comment.
	(E_FLAG_RX_ABI): Define.

2012-11-09  Nick Clifton  <nickc@redhat.com>

	* emultempl/rxelf.em (no_flag_mismatch_warnings): Initialise to
	true.
	(PARSE_AND_LIST_LONGOPTS): Add flag-mismatch-warnings.
	(PARSE_AND_LIST_ARG_CASES): Add support for
	--flag-mismatch-warnings.

1 files changed, 61 insertions, 11 deletions

diff --git a/bfd/elf32-rx.c b/bfd/elf32-rx.c
index 771867f631..92c046abfa 100644
--- a/bfd/elf32-rx.c
+++ b/bfd/elf32-rx.c
@@ -2937,6 +2937,39 @@ bfd_elf32_rx_set_target_flags (bfd_boolean user_no_warn_mismatch,
   ignore_lma = user_ignore_lma;
 }
 
+/* Converts FLAGS into a descriptive string.
+   Returns a static pointer.  */
+
+static const char *
+describe_flags (flagword flags)
+{
+  static char buf [128];
+
+  buf[0] = 0;
+
+  if (flags & E_FLAG_RX_64BIT_DOUBLES)
+    strcat (buf, "64-bit doubles");
+  else
+    strcat (buf, "32-bit doubles");
+
+  if (flags & E_FLAG_RX_DSP)
+    strcat (buf, ", dsp");
+  else
+    strcat (buf, ", no dsp");
+
+  if (flags & E_FLAG_RX_PID)
+    strcat (buf, ", pid");
+  else
+    strcat (buf, ", no pid");
+
+  if (flags & E_FLAG_RX_ABI)
+    strcat (buf, ", RX ABI");
+  else
+    strcat (buf, ", GCC ABI");
+
+  return buf;
+}
+
 /* Merge backend specific data from an object file to the output
    object file when linking.  */
 
@@ -2958,7 +2991,10 @@ rx_elf_merge_private_bfd_data (bfd * ibfd, bfd * obfd)
     }
   else if (old_flags != new_flags)
     {
-      flagword known_flags = E_FLAG_RX_64BIT_DOUBLES | E_FLAG_RX_DSP | E_FLAG_RX_PID;
+      flagword known_flags;
+
+      known_flags = E_FLAG_RX_ABI | E_FLAG_RX_64BIT_DOUBLES
+	| E_FLAG_RX_DSP | E_FLAG_RX_PID;
 
       if ((old_flags ^ new_flags) & known_flags)
 	{
@@ -2971,9 +3007,12 @@ rx_elf_merge_private_bfd_data (bfd * ibfd, bfd * obfd)
 	    }
 	  else
 	    {
-	      (*_bfd_error_handler)
-		("ELF header flags mismatch: old_flags = 0x%.8lx, new_flags = 0x%.8lx, filename = %s",
-		 old_flags, new_flags, bfd_get_filename (ibfd));
+	      _bfd_error_handler ("There is a conflict merging the ELF header flags from %s",
+				  bfd_get_filename (ibfd));
+	      _bfd_error_handler ("  the input  file's flags: %s",
+				  describe_flags (new_flags));
+	      _bfd_error_handler ("  the output file's flags: %s",
+				  describe_flags (old_flags));
 	      error = TRUE;
 	    }
 	}
@@ -3001,21 +3040,20 @@ rx_elf_print_private_bfd_data (bfd * abfd, void * ptr)
   flags = elf_elfheader (abfd)->e_flags;
   fprintf (file, _("private flags = 0x%lx:"), (long) flags);
 
-  if (flags & E_FLAG_RX_64BIT_DOUBLES)
-    fprintf (file, _(" [64-bit doubles]"));
-  if (flags & E_FLAG_RX_DSP)
-    fprintf (file, _(" [dsp]"));
-
-  fputc ('\n', file);
+  fprintf (file, describe_flags (flags));
   return TRUE;
 }
 
 /* Return the MACH for an e_flags value.  */
 
 static int
-elf32_rx_machine (bfd * abfd)
+elf32_rx_machine (bfd * abfd ATTRIBUTE_UNUSED)
 {
+#if 0 /* FIXME: EF_RX_CPU_MASK collides with E_FLAG_RX_...
+	 Need to sort out how these flag bits are used.
+         For now we assume that the flags are OK.  */
   if ((elf_elfheader (abfd)->e_flags & EF_RX_CPU_MASK) == EF_RX_CPU_RX)
+#endif
     return bfd_mach_rx;
 
   return 0;
@@ -3495,6 +3533,17 @@ elf32_rx_modify_program_headers (bfd * abfd ATTRIBUTE_UNUSED,
 
   return TRUE;
 }
+
+/* The default literal sections should always be marked as "code" (i.e.,
+   SHF_EXECINSTR).  This is particularly important for big-endian mode
+   when we do not want their contents byte reversed.  */
+static const struct bfd_elf_special_section elf32_rx_special_sections[] =
+{
+  { STRING_COMMA_LEN (".init_array"),    0, SHT_INIT_ARRAY, SHF_ALLOC + SHF_EXECINSTR },
+  { STRING_COMMA_LEN (".fini_array"),    0, SHT_FINI_ARRAY, SHF_ALLOC + SHF_EXECINSTR },
+  { STRING_COMMA_LEN (".preinit_array"), 0, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_EXECINSTR },
+  { NULL,                        0,      0, 0,            0 }
+};
 
 #define ELF_ARCH		bfd_arch_rx
 #define ELF_MACHINE_CODE	EM_RX
@@ -3523,6 +3572,7 @@ elf32_rx_modify_program_headers (bfd * abfd ATTRIBUTE_UNUSED,
 #define bfd_elf32_set_section_contents		rx_set_section_contents
 #define bfd_elf32_bfd_final_link		rx_final_link
 #define bfd_elf32_bfd_relax_section		elf32_rx_relax_section_wrapper
+#define elf_backend_special_sections	        elf32_rx_special_sections
 
 #include "elf32-target.h"