New ARC implementation.

bfd	* archures.c: Remove support for older ARC. Added support for new
	ARC cpus (ARC600, ARC601, ARC700, ARCV2).
	* bfd-in2.h: Likewise.
	* config.bfd: Likewise.
	* cpu-arc.c: Likewise.
	* elf32-arc.c: Totally changed file with a refactored
	inplementation of the ARC port.
	* libbfd.h: Added ARC specific relocation types.
	* reloc.c: Likewise.

gas     * config/tc-arc.c: Revamped file for ARC support.
        * config/tc-arc.h: Likewise.
        * doc/as.texinfo: Add new ARC options.
        * doc/c-arc.texi: Likewise.

ld	* configure.tgt: Added target arc-*-elf* and arc*-*-linux-uclibc*.
	* emulparams/arcebelf_prof.sh: New file
	* emulparams/arcebelf.sh: Likewise.
	* emulparams/arceblinux_prof.sh: Likewise.
	* emulparams/arceblinux.sh: Likewise.
	* emulparams/arcelf_prof.sh: Likewise.
	* emulparams/arcelf.sh: Likewise.
	* emulparams/arclinux_prof.sh: Likewise.
	* emulparams/arclinux.sh: Likewise.
	* emulparams/arcv2elfx.sh: Likewise.
	* emulparams/arcv2elf.sh: Likewise.
	* emultempl/arclinux.em: Likewise.
	* scripttempl/arclinux.sc: Likewise.
	* scripttempl/elfarc.sc: Likewise.
	* scripttempl/elfarcv2.sc: Likewise
	* Makefile.am: Add new ARC emulations.
	* Makefile.in: Regenerate.
	* NEWS: Mention the new feature.

opcodes * arc-dis.c: Revamped file for ARC support
	* arc-dis.h: Likewise.
	* arc-ext.c: Likewise.
	* arc-ext.h: Likewise.
	* arc-opc.c: Likewise.
	* arc-fxi.h: New file.
	* arc-regs.h: Likewise.
	* arc-tbl.h: Likewise.

binutils * readelf.c (get_machine_name): Remove A5 reference. Add ARCompact
	and ARCv2.
	(get_machine_flags): Handle EM_ARCV2 and EM_ARCOMPACT.
	(guess_is_rela): Likewise.
	(dump_relocations): Likewise.
	(is_32bit_abs_reloc): Likewise.
	(is_16bit_abs_reloc): Likewise.
	(is_none_reloc): Likewise.
	* NEWS: Mention the new feature.

include	* dis-asm.h (arc_get_disassembler): Correct declaration.
	* arc-reloc.def: Macro file with definition of all relocation
	types.
	* arc.h: Changed macros for the newly supported ARC cpus.  Altered
	enum defining the supported relocations.
	* common.h: Changed EM_ARC_A5 definition to EM_ARC_COMPACT. Added
	macro for EM_ARC_COMPACT2.
        * arc-func.h: New file.
        * arc.h: Likewise.

4 files changed, 90 insertions, 2 deletions

diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 16ed7c4..e40926b 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,16 @@
+2015-09-01  Claudiu Zissulescu  <claziss@synopsys.com>
+	    Cupertino Miranda  <cmiranda@synopsys.com>
+
+	* readelf.c (get_machine_name): Remove A5 reference. Add ARCompact
+	and ARCv2.
+	(get_machine_flags): Handle EM_ARCV2 and EM_ARCOMPACT.
+	(guess_is_rela): Likewise.
+	(dump_relocations): Likewise.
+	(is_32bit_abs_reloc): Likewise.
+	(is_16bit_abs_reloc): Likewise.
+	(is_none_reloc): Likewise.
+	* NEWS: Mention the new feature.
+
 2015-09-29  Andrew Stubbs  <ams@codesourcery.com>
 	    H.J. Lu  <hongjiu.lu@intel.com>
 
diff --git a/binutils/NEWS b/binutils/NEWS
index afcd7c9..fb36cf1 100644
--- a/binutils/NEWS
+++ b/binutils/NEWS
@@ -1,5 +1,7 @@
 -*- text -*-
 
+* Add support for the ARC EM/HS, and ARC600/700 architectures.
+
 * Extend objcopy --compress-debug-sections option to support
   --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] for ELF
   targets.
diff --git a/binutils/readelf.c b/binutils/readelf.c
index bbf5b02..e8c215d 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -728,6 +728,9 @@ guess_is_rela (unsigned int e_machine)
     case EM_ADAPTEVA_EPIPHANY:
     case EM_ALPHA:
     case EM_ALTERA_NIOS2:
+    case EM_ARC:
+    case EM_ARC_COMPACT:
+    case EM_ARC_COMPACT2:
     case EM_AVR:
     case EM_AVR_OLD:
     case EM_BLACKFIN:
@@ -1315,6 +1318,8 @@ dump_relocations (FILE * file,
 	  break;
 
 	case EM_ARC:
+	case EM_ARC_COMPACT:
+	case EM_ARC_COMPACT2:
 	  rtype = elf_arc_reloc_type (type);
 	  break;
 
@@ -2115,6 +2120,8 @@ get_machine_name (unsigned e_machine)
     case EM_SPARCV9:		return "Sparc v9";
     case EM_TRICORE:		return "Siemens Tricore";
     case EM_ARC:		return "ARC";
+    case EM_ARC_COMPACT:	return "ARCompact";
+    case EM_ARC_COMPACT2:	return "ARCv2";
     case EM_H8_300:		return "Renesas H8/300";
     case EM_H8_300H:		return "Renesas H8/300H";
     case EM_H8S:		return "Renesas H8S";
@@ -2182,7 +2189,6 @@ get_machine_name (unsigned e_machine)
     case EM_SCORE:		return "SUNPLUS S+Core";
     case EM_XSTORMY16:		return "Sanyo XStormy16 CPU core";
     case EM_OR1K:		return "OpenRISC 1000";
-    case EM_ARC_A5:		return "ARC International ARCompact processor";
     case EM_CRX:		return "National Semiconductor CRX microprocessor";
     case EM_ADAPTEVA_EPIPHANY:	return "Adapteva EPIPHANY";
     case EM_DLX:		return "OpenDLX";
@@ -2761,6 +2767,63 @@ get_machine_flags (unsigned e_flags, unsigned e_machine)
 	default:
 	  break;
 
+	case EM_ARC_COMPACT2:
+	  switch (e_flags & EF_ARC_MACH_MSK)
+	    {
+	    case EF_ARC_CPU_ARCV2EM:
+	      strcat (buf, ", ARC EM");
+	      break;
+	    case EF_ARC_CPU_ARCV2HS:
+	      strcat (buf, ", ARC HS");
+	      break;
+	    default:
+	      strcat (buf, ", unrecognized flag for ARCv2");
+	      break;
+	    }
+	  switch (e_flags & EF_ARC_OSABI_MSK)
+	    {
+	      /* Only upstream 3.9+ kernels will support ARCv2
+		 ISA.  */
+	    case E_ARC_OSABI_V3:
+	      strcat (buf, ", v3 no-legacy-syscalls ABI");
+	      break;
+	    }
+	  break;
+
+	case EM_ARC_COMPACT:
+	  switch (e_flags & EF_ARC_MACH_MSK)
+	    {
+	    case E_ARC_MACH_ARC600:
+	      strcat (buf, ", ARC 600");
+	      break;
+	    case E_ARC_MACH_ARC601:
+	      strcat (buf, ", ARC 601");
+	      break;
+	    case E_ARC_MACH_ARC700:
+	      strcat (buf, ", ARC 700");
+	      break;
+	    default:
+	      strcat (buf, ", Generic ARCompact");
+	      break;
+	    }
+	  switch (e_flags & EF_ARC_OSABI_MSK)
+	    {
+	    case E_ARC_OSABI_ORIG:
+	      strcat (buf, ", legacy syscall ABI");
+	      break;
+	    case E_ARC_OSABI_V2:
+	      /* For 3.2+ Linux kernels which use asm-generic
+		 hdrs.  */
+	      strcat (buf, ", v2 syscall ABI");
+	      break;
+	    case E_ARC_OSABI_V3:
+	      /* Upstream 3.9+ kernels which don't use any legacy
+		 syscalls.  */
+	      strcat (buf, ", v3 no-legacy-syscalls ABI");
+	      break;
+	    }
+	  break;
+
 	case EM_ARM:
 	  decode_ARM_machine_flags (e_flags, buf);
 	  break;
@@ -11302,6 +11365,9 @@ is_32bit_abs_reloc (unsigned int reloc_type)
       return reloc_type == 1; /* R_ALPHA_REFLONG.  */
     case EM_ARC:
       return reloc_type == 1; /* R_ARC_32.  */
+    case EM_ARC_COMPACT:
+    case EM_ARC_COMPACT2:
+      return reloc_type == 4; /* R_ARC_32.  */
     case EM_ARM:
       return reloc_type == 2; /* R_ARM_ABS32 */
     case EM_AVR_OLD:
@@ -11620,6 +11686,10 @@ is_16bit_abs_reloc (unsigned int reloc_type)
 {
   switch (elf_header.e_machine)
     {
+    case EM_ARC:
+    case EM_ARC_COMPACT:
+    case EM_ARC_COMPACT2:
+      return reloc_type == 2; /* R_ARC_16.  */
     case EM_AVR_OLD:
     case EM_AVR:
       return reloc_type == 4; /* R_AVR_16.  */
@@ -11690,6 +11760,9 @@ is_none_reloc (unsigned int reloc_type)
     case EM_ADAPTEVA_EPIPHANY:
     case EM_PPC:     /* R_PPC_NONE.  */
     case EM_PPC64:   /* R_PPC64_NONE.  */
+    case EM_ARC:     /* R_ARC_NONE.  */
+    case EM_ARC_COMPACT: /* R_ARC_NONE.  */
+    case EM_ARC_COMPACT2: /* R_ARC_NONE.  */
     case EM_ARM:     /* R_ARM_NONE.  */
     case EM_IA_64:   /* R_IA64_NONE.  */
     case EM_SH:      /* R_SH_NONE.  */
diff --git a/binutils/testsuite/binutils-all/objdump.exp b/binutils/testsuite/binutils-all/objdump.exp
index 62c91d8..c3cbb13 100644
--- a/binutils/testsuite/binutils-all/objdump.exp
+++ b/binutils/testsuite/binutils-all/objdump.exp
@@ -34,7 +34,7 @@ send_user "Version [binutil_version $OBJDUMP]"
 set got [binutils_run $OBJDUMP "$OBJDUMPFLAGS -i"]
 
 set cpus_expected [list]
-lappend cpus_expected aarch64 alpha arc arm cris
+lappend cpus_expected aarch64 alpha arc HS arm cris
 lappend cpus_expected d10v d30v fr30 fr500 fr550 h8 hppa i386 i860 i960 iamcu ip2022
 lappend cpus_expected m16c m32c m32r m68hc11 m68hc12 m68k m88k MCore mep c5 h1 MicroBlaze
 lappend cpus_expected mips mn10200 mn10300 ms1 msp MSP430 nds32 n1h_v3 ns32k