2006-03-10 Paul Brook <paul@codesourcery.com>

bfd/
	* elf32-arm.c (INTERWORK_FLAG): Handle EABIv5.
	(elf32_arm_print_private_bfd_data): Ditto.
binutils/
	* readelf.c (decode_ARM_machine_flags):  Handle EABIv5.
gas/
	* config/tc-arm.c (md_begin): Handle EABIv5.
	(arm_eabis): Add EF_ARM_EABI_VER5.
	* doc/c-arm.texi: Document -meabi=5.
include/elf/
	* arm.h (EF_ARM_EABI_VER5): Define.

bfd/ChangeLog

@@ -1,3 +1,8 @@
+2006-03-10  Paul Brook  <paul@codesourcery.com>
+
+	* elf32-arm.c (INTERWORK_FLAG): Handle EABIv5.
+	(elf32_arm_print_private_bfd_data): Ditto.
+
 2006-03-09  Paul Brook  <paul@codesourcery.com>
 
 	* cpu-arm.c (bfd_is_arm_mapping_symbol_name): Recognise additional

bfd/elf32-arm.c

@@ -1452,9 +1452,10 @@ elf32_arm_nabi_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
 typedef unsigned long int insn32;
 typedef unsigned short int insn16;
 
-/* In lieu of proper flags, assume all EABIv4 objects are interworkable.  */
+/* In lieu of proper flags, assume all EABIv4 or later objects are
+   interworkable.  */
 #define INTERWORK_FLAG(abfd)  \
-  (EF_ARM_EABI_VERSION (elf_elfheader (abfd)->e_flags) == EF_ARM_EABI_VER4 \
+  (EF_ARM_EABI_VERSION (elf_elfheader (abfd)->e_flags) >= EF_ARM_EABI_VER4 \
   || (elf_elfheader (abfd)->e_flags & EF_ARM_INTERWORK))
 
 /* The linker script knows the section names for placement.
@@ -5153,6 +5154,21 @@ elf32_arm_merge_eabi_attributes (bfd *ibfd, bfd *obfd)
   return TRUE;
 }
 
+
+/* Return TRUE if the two EABI versions are incompatible.  */
+
+static bfd_boolean
+elf32_arm_versions_compatible (unsigned iver, unsigned over)
+{
+  /* v4 and v5 are the same spec before and after it was released,
+     so allow mixing them.  */
+  if ((iver == EF_ARM_EABI_VER4 && over == EF_ARM_EABI_VER5)
+      || (iver == EF_ARM_EABI_VER5 && over == EF_ARM_EABI_VER4))
+    return TRUE;
+
+  return (iver == over);
+}
+
 /* Merge backend specific data from an object file to the output
    object file when linking.  */
 
@@ -5251,7 +5267,8 @@ elf32_arm_merge_private_bfd_data (bfd * ibfd, bfd * obfd)
     }
 
   /* Complain about various flag mismatches.  */
-  if (EF_ARM_EABI_VERSION (in_flags) != EF_ARM_EABI_VERSION (out_flags))
+  if (!elf32_arm_versions_compatible (EF_ARM_EABI_VERSION (in_flags),
+				      EF_ARM_EABI_VERSION (out_flags)))
     {
       _bfd_error_handler
 	(_("ERROR: Source object %B has EABI version %d, but target %B has EABI version %d"),
@@ -5462,7 +5479,11 @@ elf32_arm_print_private_bfd_data (bfd *abfd, void * ptr)
 
     case EF_ARM_EABI_VER4:
       fprintf (file, _(" [Version4 EABI]"));
+      goto eabi;
 
+    case EF_ARM_EABI_VER5:
+      fprintf (file, _(" [Version5 EABI]"));
+    eabi:
       if (flags & EF_ARM_BE8)
 	fprintf (file, _(" [BE8]"));
 

binutils/ChangeLog

@@ -1,3 +1,7 @@
+2006-03-10  Paul Brook  <paul@codesourcery.com>
+
+	* readelf.c (decode_ARM_machine_flags):  Handle EABIv5.
+
 2006-03-10  Alan Modra  <amodra@bigpond.net.au>
 
 	* dwarf.c (process_extended_line_op): Remove pointer_size param.

binutils/readelf.c

@@ -1793,6 +1793,11 @@ decode_ARM_machine_flags (unsigned e_flags, char buf[])
 
     case EF_ARM_EABI_VER4:
       strcat (buf, ", Version4 EABI");
+      goto eabi;
+
+    case EF_ARM_EABI_VER5:
+      strcat (buf, ", Version5 EABI");
+    eabi:
       while (e_flags)
 	{
 	  unsigned flag;

gas/ChangeLog

@@ -1,3 +1,9 @@
+2006-03-10  Paul Brook  <paul@codesourcery.com>
+
+	* config/tc-arm.c (md_begin): Handle EABIv5.
+	(arm_eabis): Add EF_ARM_EABI_VER5.
+	* doc/c-arm.texi: Document -meabi=5.
+
 2006-03-10  Ben Elliston  <bje@au.ibm.com>
 
 	* app.c (do_scrub_chars): Simplify string handling.

gas/config/tc-arm.c

@@ -12851,6 +12851,7 @@ md_begin (void)
 	break;
 
       case EF_ARM_EABI_VER4:
+      case EF_ARM_EABI_VER5:
 	/* No additional flags to set.	*/
 	break;
 
@@ -13367,11 +13368,12 @@ static const struct arm_option_value_table arm_float_abis[] =
 };
 
 #ifdef OBJ_ELF
-/* We only know how to output GNU and ver 4 (AAELF) formats.  */
+/* We only know how to output GNU and ver 4/5 (AAELF) formats.  */
 static const struct arm_option_value_table arm_eabis[] =
 {
   {"gnu",	EF_ARM_EABI_UNKNOWN},
   {"4",		EF_ARM_EABI_VER4},
+  {"5",		EF_ARM_EABI_VER5},
   {NULL,	0}
 };
 #endif

gas/doc/c-arm.texi

@@ -255,9 +255,10 @@ and
 This option specifies which EABI version the produced object files should
 conform to.
 The following values are recognised:
-@code{gnu}
+@code{gnu},
+@code{4}
 and
-@code{4}.
+@code{5}.
 
 @cindex @code{-EB} command line option, ARM
 @item -EB

include/elf/ChangeLog

@@ -1,3 +1,7 @@
+2006-03-10  Paul Brook  <paul@codesourcery.com>
+
+	* arm.h (EF_ARM_EABI_VER5): Define.
+
 2006-03-06  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* m68k.h (EF_M68K_ISA_MASK, EF_M68K_ISA_A,

include/elf/arm.h

@@ -56,6 +56,7 @@
 #define EF_ARM_EABI_VER2     0x02000000
 #define EF_ARM_EABI_VER3     0x03000000
 #define EF_ARM_EABI_VER4     0x04000000
+#define EF_ARM_EABI_VER5     0x05000000
 
 /* Local aliases for some flags to match names used by COFF port.  */
 #define F_INTERWORK	   EF_ARM_INTERWORK