bfd:

bfd/ChangeLog

@@ -1,7 +1,14 @@
+2012-10-30  Steve McIntyre  <steve.mcintyre@linaro.org>
+
+	* elf32-arm.c (elf32_arm_print_private_bfd_data): Recognise and
+	display the new ARM hard-float/soft-float ABI flags for EABI_VER5
+	(elf32_arm_post_process_headers): Add the hard-float/soft-float
+	ABI flag as appropriate for ET_DYN/ET_EXEC in EABI_VER5.
+
 2012-10-30  Yao Qi  <yao@codesourcery.com>
 	    H.J. Lu  <hongjiu.lu@intel.com>
 
-	* configure.in: Set CORE_HEADER to hosts/x86-64linux.h for 
+	* configure.in: Set CORE_HEADER to hosts/x86-64linux.h for
 	'i[3-7]86-*-linux-*' if x86_64-*linux is enabled.
 	* configure: Regenerated.
 

bfd/elf-bfd.h

@@ -168,6 +168,8 @@ struct elf_link_hash_entry
   /* Symbol has a non-weak reference from a non-shared object (other than
      the object in which it is defined).  */
   unsigned int ref_regular_nonweak : 1;
+  /* Symbol has a non-weak reference from a shared object.  */
+  unsigned int ref_dynamic_nonweak : 1;  
   /* Dynamic symbol has been adjustd.  */
   unsigned int dynamic_adjusted : 1;
   /* Symbol needs a copy reloc.  */

bfd/elf32-arm.c

@@ -12110,6 +12110,15 @@ elf32_arm_print_private_bfd_data (bfd *abfd, void * ptr)
 
     case EF_ARM_EABI_VER5:
       fprintf (file, _(" [Version5 EABI]"));
+
+      if (flags & EF_ARM_ABI_FLOAT_SOFT)
+	fprintf (file, _(" [soft-float ABI]"));
+
+      if (flags & EF_ARM_ABI_FLOAT_HARD)
+	fprintf (file, _(" [hard-float ABI]"));
+
+      flags &= ~(EF_ARM_ABI_FLOAT_SOFT | EF_ARM_ABI_FLOAT_HARD);
+
     eabi:
       if (flags & EF_ARM_BE8)
 	fprintf (file, _(" [BE8]"));
@@ -14417,6 +14426,16 @@ elf32_arm_post_process_headers (bfd * abfd, struct bfd_link_info * link_info ATT
       if (globals != NULL && globals->byteswap_code)
 	i_ehdrp->e_flags |= EF_ARM_BE8;
     }
+
+  if (EF_ARM_EABI_VERSION (i_ehdrp->e_flags) == EF_ARM_EABI_VER5
+      && ((i_ehdrp->e_type == ET_DYN) || (i_ehdrp->e_type == ET_EXEC)))
+    {
+      int abi = bfd_elf_get_obj_attr_int (abfd, OBJ_ATTR_PROC, Tag_ABI_VFP_args);
+      if (abi)
+	i_ehdrp->e_flags |= EF_ARM_ABI_FLOAT_HARD;
+      else
+	i_ehdrp->e_flags |= EF_ARM_ABI_FLOAT_SOFT;
+    }
 }
 
 static enum elf_reloc_type_class

bfd/elflink.c

@@ -4394,6 +4394,8 @@ error_free_dyn:
 		    {
 		      h->def_dynamic = 0;
 		      h->ref_dynamic = 1;
+		      /* PR 12549: Note if the dynamic reference is weak.  */
+		      h->ref_dynamic_nonweak = (bind != STB_WEAK);
 		    }
 		}
 
@@ -4411,6 +4413,9 @@ error_free_dyn:
 		{
 		  h->ref_dynamic = 1;
 		  hi->ref_dynamic = 1;
+		  /* PR 12549: Note if the dynamic reference is weak.  */
+		  hi->ref_dynamic_nonweak =
+		    h->ref_dynamic_nonweak = (bind != STB_WEAK);
 		}
 	      else
 		{
@@ -4498,8 +4503,8 @@ error_free_dyn:
 	  if (!add_needed
 	      && definition
 	      && ((dynsym
-		   && h->ref_regular)
-		  || (h->ref_dynamic
+		   && h->ref_regular_nonweak)
+		  || (h->ref_dynamic_nonweak
 		      && (elf_dyn_lib_class (abfd) & DYN_AS_NEEDED) != 0
 		      && !on_needed_list (elf_dt_name (abfd), htab->needed))))
 	    {

binutils/ChangeLog

@@ -1,3 +1,18 @@
+2012-10-30  Nick Clifton  <nickc@redhat.com>
+
+	PR binutils/14779
+	* configure.in: Add checks for wchar.h and mbstate_t.
+	* config.in: Regenerate.
+	* configure: Regenerate.
+	* readelf.c: Conditionally include wchar.h.
+	(print_symbol): Conditionally use mbstate_t.
+
+2012-10-30  	Steve McIntyre  <steve.mcintyre@linaro.org>
+
+	* readelf.c (decode_ARM_machine_flags): Recognise and display the
+	new ARM hard-float/soft-float ABI flags for EABI_VER5. Split out
+	the code for EABI_VER4 and EABI_VER5 to allow this.
+
 2012-10-29  Alan Modra  <amodra@gmail.com>
 
 	* dlltool.c (INIT_SEC_DATA): Move.

binutils/bfdtest1.c

@@ -35,9 +35,11 @@ main (int argc, char **argv)
   bfd *last, *next;
 
   if (argc != 2)
-    die ("bad usage");
+    die ("usage: bfdtest1 <archive>");
 
   archive = bfd_openr (argv[1], NULL);
+  if (archive == NULL)
+    die ("no such archive");
 
   if (!bfd_check_format (archive, bfd_archive))
     {

binutils/config.in

@@ -2,7 +2,7 @@
 
 /* Check that config.h is #included before system headers
    (this works only for glibc, but that should be enough).  */
-#if defined(__GLIBC__) && !defined(__FreeBSD_kernel__)
+#if defined(__GLIBC__)
 #  error config.h must be #included before system headers
 #endif
 
@@ -100,6 +100,9 @@
 /* Define to 1 if you have the <locale.h> header file. */
 #undef HAVE_LOCALE_H
 
+/* Define if mbstate_t exists in wchar.h. */
+#undef HAVE_MBSTATE_T
+
 /* Define to 1 if you have the <memory.h> header file. */
 #undef HAVE_MEMORY_H
 
@@ -160,6 +163,9 @@
 /* Define to 1 if you have the `utimes' function. */
 #undef HAVE_UTIMES
 
+/* Define to 1 if you have the <wchar.h> header file. */
+#undef HAVE_WCHAR_H
+
 /* Define to 1 if you have the <zlib.h> header file. */
 #undef HAVE_ZLIB_H
 

binutils/configure

@@ -12446,7 +12446,7 @@ case "${host}" in
 esac
 
 
-for ac_header in string.h strings.h stdlib.h unistd.h fcntl.h sys/file.h limits.h locale.h sys/param.h
+for ac_header in string.h strings.h stdlib.h unistd.h fcntl.h sys/file.h limits.h locale.h sys/param.h wchar.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
@@ -12750,6 +12750,32 @@ $as_echo "#define HAVE_MKDTEMP 1" >>confdefs.h
 
 fi
 
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mbstate_t" >&5
+$as_echo_n "checking for mbstate_t... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <wchar.h>
+int
+main ()
+{
+mbstate_t teststate;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  have_mbstate_t=yes
+else
+  have_mbstate_t=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_mbstate_t" >&5
+$as_echo "$have_mbstate_t" >&6; }
+  if test x"$have_mbstate_t" = xyes; then
+
+$as_echo "#define HAVE_MBSTATE_T 1" >>confdefs.h
+
+  fi
 
 # Some systems have frexp only in -lm, not in -lc.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing frexp" >&5

binutils/configure.in

@@ -96,7 +96,7 @@ case "${host}" in
 esac
 AC_SUBST(DEMANGLER_NAME)
 
-AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h fcntl.h sys/file.h limits.h locale.h sys/param.h)
+AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h fcntl.h sys/file.h limits.h locale.h sys/param.h wchar.h)
 AC_HEADER_SYS_WAIT
 ACX_HEADER_STRING
 AC_FUNC_ALLOCA
@@ -107,6 +107,14 @@ AC_CHECK_FUNC([mkstemp],
 AC_CHECK_FUNC([mkdtemp],
               AC_DEFINE([HAVE_MKDTEMP], 1,
               [Define to 1 if you have the `mkdtemp' function.]))
+  AC_MSG_CHECKING([for mbstate_t])
+  AC_TRY_COMPILE([#include <wchar.h>],
+  [mbstate_t teststate;],
+  have_mbstate_t=yes, have_mbstate_t=no)
+  AC_MSG_RESULT($have_mbstate_t)
+  if test x"$have_mbstate_t" = xyes; then
+    AC_DEFINE(HAVE_MBSTATE_T,1,[Define if mbstate_t exists in wchar.h.])
+  fi
 
 # Some systems have frexp only in -lm, not in -lc.
 AC_SEARCH_LIBS(frexp, m)

binutils/readelf.c

@@ -48,7 +48,9 @@
 #ifdef HAVE_ZLIB_H
 #include <zlib.h>
 #endif
+#ifdef HAVE_WCHAR_H
 #include <wchar.h>
+#endif
 
 #if __GNUC__ >= 2
 /* Define BFD64 here, even if our default architecture is 32 bit ELF
@@ -386,7 +388,7 @@ print_vma (bfd_vma vma, print_mode mode)
 }
 
 /* Display a symbol on stdout.  Handles the display of control characters and
-   multibye characters.
+   multibye characters (assuming the host environment supports them).
 
    Display at most abs(WIDTH) characters, truncating as necessary, unless do_wide is true.
 
@@ -400,7 +402,9 @@ print_symbol (int width, const char *symbol)
 {
   bfd_boolean extra_padding = FALSE;
   int num_printed = 0;
+#ifdef HAVE_MBSTATE_T
   mbstate_t state;
+#endif
   int width_remaining;
 
   if (width < 0)
@@ -417,13 +421,14 @@ print_symbol (int width, const char *symbol)
   else
     width_remaining = width;
 
+#ifdef HAVE_MBSTATE_T
   /* Initialise the multibyte conversion state.  */
   memset (& state, 0, sizeof (state));
+#endif
 
   while (width_remaining)
     {
       size_t  n;
-      wchar_t w;
       const char c = *symbol++;
 
       if (c == 0)
@@ -449,15 +454,22 @@ print_symbol (int width, const char *symbol)
 	}
       else
 	{
+#ifdef HAVE_MBSTATE_T
+	  wchar_t w;
+#endif
 	  /* Let printf do the hard work of displaying multibyte characters.  */
 	  printf ("%.1s", symbol - 1);
 	  width_remaining --;
 	  num_printed ++;
 
+#ifdef HAVE_MBSTATE_T
 	  /* Try to find out how many bytes made up the character that was
 	     just printed.  Advance the symbol pointer past the bytes that
 	     were displayed.  */
 	  n = mbrtowc (& w, symbol - 1, MB_CUR_MAX, & state);
+#else
+	  n = 1;
+#endif
 	  if (n != (size_t) -1 && n != (size_t) -2 && n > 0)
 	    symbol += (n - 1);
 	}
@@ -2122,11 +2134,34 @@ decode_ARM_machine_flags (unsigned e_flags, char buf[])
 
     case EF_ARM_EABI_VER4:
       strcat (buf, ", Version4 EABI");
-      goto eabi;
+      while (e_flags)
+	{
+	  unsigned flag;
+
+	  /* Process flags one bit at a time.  */
+	  flag = e_flags & - e_flags;
+	  e_flags &= ~ flag;
+
+	  switch (flag)
+	    {
+	    case EF_ARM_BE8:
+	      strcat (buf, ", BE8");
+	      break;
+
+	    case EF_ARM_LE8:
+	      strcat (buf, ", LE8");
+	      break;
+
+	    default:
+	      unknown = 1;
+	      break;
+	    }
+      break;
+	}
+      break;
 
     case EF_ARM_EABI_VER5:
       strcat (buf, ", Version5 EABI");
-    eabi:
       while (e_flags)
 	{
 	  unsigned flag;
@@ -2145,6 +2180,14 @@ decode_ARM_machine_flags (unsigned e_flags, char buf[])
 	      strcat (buf, ", LE8");
 	      break;
 
+	    case EF_ARM_ABI_FLOAT_SOFT: /* Conflicts with EF_ARM_SOFT_FLOAT.  */
+	      strcat (buf, ", soft-float ABI");
+	      break;
+
+	    case EF_ARM_ABI_FLOAT_HARD: /* Conflicts with EF_ARM_VFP_FLOAT.  */
+	      strcat (buf, ", hard-float ABI");
+	      break;
+
 	    default:
 	      unknown = 1;
 	      break;

elfcpp/ChangeLog

@@ -1,3 +1,7 @@
+2012-10-30  Steve McIntyre  <steve.mcintyre@linaro.org>
+
+	* arm.h: New enum for EABI soft- and hard-float flags.
+
 2012-09-15  Jiong Wang  <jiwang@tilera.com>
 
 	* tilegx.h: New file.

elfcpp/arm.h

@@ -1,6 +1,6 @@
 // arm.h -- ELF definitions specific to EM_ARM  -*- C++ -*-
 
-// Copyright 2009, Free Software Foundation, Inc.
+// Copyright 2009, 2012 Free Software Foundation, Inc.
 // Written by Doug Kwan <dougkwan@google.com>.
 
 // This file is part of elfcpp.
@@ -222,6 +222,14 @@ inline Elf_Word
 arm_eabi_version(Elf_Word flags)
 { return flags & EF_ARM_EABIMASK; }
 
+// EABI_VER5 e_flags values for identifying soft- and hard-float ABI
+// choice.
+enum
+{
+  EF_ARM_ABI_FLOAT_SOFT = 0x200,
+  EF_ARM_ABI_FLOAT_HARD = 0x400,
+};
+
 // Values for the Tag_CPU_arch EABI attribute.
 enum
 {

gas/doc/as.texinfo

@@ -458,7 +458,6 @@ gcc(1), ld(1), and the Info entries for @file{binutils} and @file{ld}.
 
 @emph{Target RX options:}
    [@b{-mlittle-endian}|@b{-mbig-endian}]
-   [@b{-m32bit-ints}|@b{-m16bit-ints}]
    [@b{-m32bit-doubles}|@b{-m64bit-doubles}]
 @end ifset
 @ifset S390
@@ -7532,8 +7531,8 @@ things without first using the debugger to find the facts.
 If you have contributed to GAS and your name isn't listed here,
 it is not meant as a slight.  We just don't know about it.  Send mail to the
 maintainer, and we'll correct the situation.  Currently
-@c (January 1994),
-the maintainer is Ken Raeburn (email address @code{raeburn@@cygnus.com}).
+@c (October 2012),
+the maintainer is Nick Clifton (email address @code{nickc@@redhat.com}).
 
 Dean Elsner wrote the original @sc{gnu} assembler for the VAX.@footnote{Any
 more details?}

gold/ChangeLog

@@ -1,3 +1,9 @@
+2012-10-30  Steve McIntyre  <steve.mcintyre@linaro.org>
+
+	* gold.cc (Target_arm::do_adjust_elf_header): Add the
+	hard-float/soft-float ABI flag as appropriate for ET_DYN/ET_EXEC
+	in EABI_VER5.
+
 2012-10-29  Cary Coutant  <ccoutant@google.com>
 
 	* dwp.cc (usage): Add file and exit status parameters;

gold/arm.cc

@@ -2476,7 +2476,7 @@ class Target_arm : public Sized_target<32, big_endian>
   { return new Arm_output_section<big_endian>(name, type, flags); }
 
   void
-  do_adjust_elf_header(unsigned char* view, int len) const;
+  do_adjust_elf_header(unsigned char* view, int len);
 
   // We only need to generate stubs, and hence perform relaxation if we are
   // not doing relocatable linking.
@@ -10016,15 +10016,16 @@ template<bool big_endian>
 void
 Target_arm<big_endian>::do_adjust_elf_header(
     unsigned char* view,
-    int len) const
+    int len)
 {
   gold_assert(len == elfcpp::Elf_sizes<32>::ehdr_size);
 
   elfcpp::Ehdr<32, big_endian> ehdr(view);
+  elfcpp::Elf_Word flags = this->processor_specific_flags();
   unsigned char e_ident[elfcpp::EI_NIDENT];
   memcpy(e_ident, ehdr.get_e_ident(), elfcpp::EI_NIDENT);
 
-  if (elfcpp::arm_eabi_version(this->processor_specific_flags())
+  if (elfcpp::arm_eabi_version(flags)
       == elfcpp::EF_ARM_EABI_UNKNOWN)
     e_ident[elfcpp::EI_OSABI] = elfcpp::ELFOSABI_ARM;
   else
@@ -10033,6 +10034,21 @@ Target_arm<big_endian>::do_adjust_elf_header(
 
   // FIXME: Do EF_ARM_BE8 adjustment.
 
+  // If we're working in EABI_VER5, set the hard/soft float ABI flags
+  // as appropriate.
+  if (elfcpp::arm_eabi_version(flags) == elfcpp::EF_ARM_EABI_VER5)
+  {
+    elfcpp::Elf_Half type = ehdr.get_e_type();
+    if (type == elfcpp::ET_EXEC || type == elfcpp::ET_DYN)
+      {
+	Object_attribute* attr = this->get_aeabi_object_attribute(elfcpp::Tag_ABI_VFP_args);
+	if (attr->int_value())
+	  flags |= elfcpp::EF_ARM_ABI_FLOAT_HARD;
+	else
+	  flags |= elfcpp::EF_ARM_ABI_FLOAT_SOFT;
+	this->set_processor_specific_flags(flags);
+      }
+  }
   elfcpp::Ehdr_write<32, big_endian> oehdr(view);
   oehdr.put_e_ident(e_ident);
 }

include/elf/ChangeLog

@@ -1,3 +1,8 @@
+2012-10-30  Steve McIntyre  <steve.mcintyre@linaro.org>
+
+	* elf/arm.h (EF_ARM_ABI_FLOAT_SOFT): New define.
+	(EF_ARM_ABI_FLOAT_HARD): Likewise.
+
 2012-10-23  Tom Tromey  <tromey@redhat.com>
 
 	* common.h (NT_SIGINFO, NT_FILE): New defines.
@@ -18,7 +23,7 @@
 	(R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL): Ditto.
 	(R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL	): Ditto.
 	(R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL): Ditto.
-	
+
 2012-08-13  Ian Bolton  <ian.bolton@arm.com>
             Laurent Desnogues  <laurent.desnogues@arm.com>
             Jim MacArthur  <jim.macarthur@arm.com>

include/elf/arm.h

@@ -46,6 +46,11 @@
 #define EF_ARM_MAPSYMSFIRST 0x10	/* NB conflicts with EF_APCS_FLOAT.  */
 #define EF_ARM_EABIMASK      0xFF000000
 
+/* New constants defined in the ARM ELF spec. version XXX.
+   Only valid in conjunction with EF_ARM_EABI_VER5. */
+#define EF_ARM_ABI_FLOAT_SOFT 0x200	/* NB conflicts with EF_ARM_SOFT_FLOAT.  */
+#define EF_ARM_ABI_FLOAT_HARD 0x400	/* NB conflicts with EF_ARM_VFP_FLOAT.  */
+
 /* Constants defined in AAELF.  */
 #define EF_ARM_BE8	    0x00800000
 #define EF_ARM_LE8	    0x00400000

ld/testsuite/ChangeLog

@@ -1,3 +1,13 @@
+2012-10-30  Steve McIntyre   <steve.mcintyre@linaro.org>
+
+	* ld-arm/eabi-hard-float.s: New test source.
+	* ld-arm/eabi-soft-float.s: New test source.
+	* ld-arm/eabi-hard-float.d: New test.
+	* ld-arm/eabi-soft-float.d: New test.
+	* ld-arm/eabi-soft-float-ABI4.d: New test.
+	* ld-arm/eabi-soft-float-r.d: New test.
+	* ld-arm/arm-elf.xp: Use the new tests.
+
 2012-10-29  Alan Modra  <amodra@gmail.com>
 
 	* ld-powerpc/powerpc.exp: Modify emulation option passed to ld

ld/testsuite/ld-arm/arm-elf.exp

@@ -271,6 +271,21 @@ set armelftests_common {
     {"Simple non-PIC shared library (no PLT check)" "-shared" "" {arm-lib.s}
      {{objdump -Rw arm-lib.r}}
      "arm-lib.so"}
+    {"EABI soft-float ET_EXEC ABI flag" "-T arm.ld" "-mfloat-abi=soft -meabi=5" {eabi-soft-float.s}
+     {{readelf -h eabi-soft-float.d}}
+     "eabi-soft-float"}
+    {"EABI hard-float ET_EXEC ABI flag" "-T arm.ld" "-mfloat-abi=hard -meabi=5" {eabi-hard-float.s}
+     {{readelf -h eabi-hard-float.d}}
+     "eabi-hard-float"}
+    {"EABI hard-float ET_DYN ABI flag" "-shared" "-mfloat-abi=hard -meabi=5" {eabi-hard-float.s}
+     {{readelf -h eabi-hard-float.d}}
+     "eabi-hard-float.so"}
+    {"EABI ABI flags wrong ABI version" "-T arm.ld" "-mfloat-abi=soft -meabi=4" {eabi-soft-float.s}
+     {{readelf -h eabi-soft-float-ABI4.d}}
+     "eabi-soft-float-no-flags"}
+    {"EABI ABI flags ld -r" "-r" "-mfloat-abi=soft -meabi=5" {eabi-soft-float.s}
+     {{readelf -h eabi-soft-float-r.d}}
+     "eabi-soft-float-r.o"}
 }
 
 set armelftests_nonacl {