bfd:

	* elf-attrs.c: New.
	* Makefile.am (BFD32_BACKENDS): Add elf-attrs.lo.
	(BFD32_BACKENDS_CFILES): Add elf-attrs.c.
	(elf-attrs.lo): Generate dependencies.
	* Makefile.in: Regenerate.
	* configure.in (elf): Add elf-attrs.lo.
	* configure: Regenerate.
	* elf-bfd.h (struct elf_backend_data): Add entries for object
	attributes.
	(NUM_KNOWN_OBJ_ATTRIBUTES, obj_attribute, obj_attribute_list,
	OBJ_ATTR_PROC, OBJ_ATTR_GNU, OBJ_ATTR_FIRST, OBJ_ATTR_LAST,
	Tag_NULL, Tag_File, Tag_Section, Tag_Symbol, Tag_compatibility):
	New.
	(struct elf_obj_tdata): Add entries for object attributes.
	(elf_known_obj_attributes, elf_other_obj_attributes,
	elf_known_obj_attributes_proc, elf_other_obj_attributes_proc):
	New.
	(bfd_elf_obj_attr_size, bfd_elf_set_obj_attr_contents,
	bfd_elf_get_obj_attr_int, bfd_elf_add_obj_attr_int,
	bfd_elf_add_proc_attr_int, bfd_elf_add_obj_attr_string,
	bfd_elf_add_proc_attr_string, bfd_elf_add_obj_attr_compat,
	bfd_elf_add_proc_attr_compat, _bfd_elf_attr_strdup,
	_bfd_elf_copy_obj_attributes, _bfd_elf_obj_attrs_arg_type,
	_bfd_elf_parse_attributes, _bfd_elf_merge_object_attributes): New.
	* elf.c (_bfd_elf_copy_private_bfd_data): Copy object attributes.
	(bfd_section_from_shdr): Handle attributes sections.
	* elflink.c (bfd_elf_final_link): Handle attributes sections.
	* elfxx-target.h (elf_backend_obj_attrs_vendor,
	elf_backend_obj_attrs_section, elf_backend_obj_attrs_arg_type,
	elf_backend_obj_attrs_section_type): New.
	(elfNN_bed): Update.
	* elf32-arm.c (NUM_KNOWN_ATTRIBUTES, aeabi_attribute,
	aeabi_attribute_list): Remove.
	(struct elf32_arm_obj_tdata): Remove object attributes fields.
	(check_use_blx, bfd_elf32_arm_set_vfp11_fix, using_thumb2,
	elf32_arm_copy_private_bfd_data, elf32_arm_merge_eabi_attributes):
	Update for new object attributes interfaces.
	(uleb128_size, is_default_attr, eabi_attr_size,
	elf32_arm_eabi_attr_size, write_uleb128, write_eabi_attribute,
	elf32_arm_set_eabi_attr_contents, elf32_arm_bfd_final_link,
	elf32_arm_new_eabi_attr, elf32_arm_get_eabi_attr_int,
	elf32_arm_add_eabi_attr_int, attr_strdup,
	elf32_arm_add_eabi_attr_string, elf32_arm_add_eabi_attr_compat,
	copy_eabi_attributes, elf32_arm_parse_attributes): Remove.  Moved
	to generic code in elf-attrs.c.
	(elf32_arm_obj_attrs_arg_type): New.
	(elf32_arm_fake_sections): Do not handle .ARM.attributes.
	(elf32_arm_section_from_shdr): Do not handle SHT_ARM_ATTRIBUTES.
	(bfd_elf32_bfd_final_link): Remove.
	(elf_backend_obj_attrs_vendor, elf_backend_obj_attrs_section,
	elf_backend_obj_attrs_arg_type,
	elf_backend_obj_attrs_section_type): New.
	* elf32-bfin.c (bfin_elf_copy_private_bfd_data): Copy object
	attributes.
	* elf32-frv.c (frv_elf_copy_private_bfd_data): Likewise.
	* elf32-iq2000.c (iq2000_elf_copy_private_bfd_data): Likewise.
	* elf32-mep.c (mep_elf_copy_private_bfd_data): Likewise.
	* elf32-mt.c (mt_elf_copy_private_bfd_data): Likewise.
	* elf32-sh.c (sh_elf_copy_private_data): Likewise.
	* elf64-sh64.c (sh_elf64_copy_private_data_internal): Likewise.

binutils:
	* readelf.c (display_gnu_attribute): New.
	(process_arm_specific): Rearrange as process_attributes.
	(process_arm_specific): Replace by wrapper of process_attributes.

gas:
	* as.c (create_obj_attrs_section): New.
	(main): Call create_obj_attrs_section for ELF.
	* read.c (s_gnu_attribute, skip_whitespace, skip_past_char,
	skip_past_comma, s_vendor_attribute): New.
	(potable): Add gnu_attribute for ELF.
	* read.h (s_vendor_attribute): Declare.
	* config/tc-arm.c (s_arm_eabi_attribute): Replace by wrapper
	round s_vendor_attribute.
	(aeabi_set_public_attributes): Update for new attributes
	interfaces.
	(arm_md_end): Remove attributes contents setting now done
	generically.

include/elf:
	* arm.h (elf32_arm_add_eabi_attr_int,
	elf32_arm_add_eabi_attr_string, elf32_arm_add_eabi_attr_compat,
	elf32_arm_get_eabi_attr_int, elf32_arm_set_eabi_attr_contents,
	elf32_arm_eabi_attr_size, Tag_NULL, Tag_File, Tag_Section,
	Tag_Symbol, Tag_compatibility): Remove.
	* common.h (SHT_GNU_ATTRIBUTES): Define.

ld:
	* emulparams/armelf.sh (OTHER_SECTIONS): Remove .ARM.attributes.
	(ATTRS_SECTIONS): Define.
	* scripttempl/elf.sc, scripttempl/elf32sh-symbian.sc,
	scripttempl/elf_chaos.sc, scripttempl/elfi370.sc,
	scripttempl/elfxtensa.sc: Handle ATTRS_SECTIONS.

2 files changed, 81 insertions, 4 deletions

diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 715b058..2dfb51e 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,9 @@
+2007-06-29  Joseph Myers  <joseph@codesourcery.com>
+
+	* readelf.c (display_gnu_attribute): New.
+	(process_arm_specific): Rearrange as process_attributes.
+	(process_arm_specific): Replace by wrapper of process_attributes.
+
 2007-06-28  Roland McGrath  <roland@frob.com>
 
 	* objcopy.c (setup_section): Don't reset ELF section type to
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 165aa61..1c4c715 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -8297,8 +8297,61 @@ display_arm_attribute (unsigned char *p)
   return p;
 }
 
+
+static unsigned char *
+display_gnu_attribute (unsigned char *p,
+		       unsigned char *(*display_proc_gnu_attribute)
+			    (unsigned char *, int))
+{
+  int tag;
+  unsigned int len;
+  int val;
+  int type;
+
+  tag = read_uleb128 (p, &len);
+  p += len;
+
+  /* Tag_compatibility is the only generic GNU attribute defined at
+     present.  */
+  if (tag == 32)
+    {
+      val = read_uleb128 (p, &len);
+      p += len;
+      printf ("flag = %d, vendor = %s\n", val, p);
+      p += strlen((char *)p) + 1;
+      return p;
+    }
+
+  if ((tag & 2) == 0 && display_proc_gnu_attribute)
+    return display_proc_gnu_attribute (p, tag);
+
+  if (tag & 1)
+    type = 1; /* String.  */
+  else
+    type = 2; /* uleb128.  */
+  printf ("  Tag_unknown_%d: ", tag);
+
+  if (type == 1)
+    {
+      printf ("\"%s\"\n", p);
+      p += strlen ((char *)p) + 1;
+    }
+  else
+    {
+      val = read_uleb128 (p, &len);
+      p += len;
+      printf ("%d (0x%x)\n", val, val);
+    }
+
+  return p;
+}
+
 static int
-process_arm_specific (FILE *file)
+process_attributes (FILE *file, const char *public_name,
+		    unsigned int proc_type,
+		    unsigned char *(*display_pub_attribute) (unsigned char *),
+		    unsigned char *(*display_proc_gnu_attribute)
+			 (unsigned char *, int))
 {
   Elf_Internal_Shdr *sect;
   unsigned char *contents;
@@ -8313,7 +8366,7 @@ process_arm_specific (FILE *file)
        i < elf_header.e_shnum;
        i++, sect++)
     {
-      if (sect->sh_type != SHT_ARM_ATTRIBUTES)
+      if (sect->sh_type != proc_type && sect->sh_type != SHT_GNU_ATTRIBUTES)
 	continue;
 
       contents = get_data (NULL, file, sect->sh_offset, 1, sect->sh_size,
@@ -8330,6 +8383,7 @@ process_arm_specific (FILE *file)
 	    {
 	      int namelen;
 	      bfd_boolean public_section;
+	      bfd_boolean gnu_section;
 
 	      section_len = byte_get (p, 4);
 	      p += 4;
@@ -8341,10 +8395,14 @@ process_arm_specific (FILE *file)
 		}
 	      len -= section_len;
 	      printf ("Attribute Section: %s\n", p);
-	      if (strcmp ((char *)p, "aeabi") == 0)
+	      if (public_name && strcmp ((char *)p, public_name) == 0)
 		public_section = TRUE;
 	      else
 		public_section = FALSE;
+	      if (strcmp ((char *)p, "gnu") == 0)
+		gnu_section = TRUE;
+	      else
+		gnu_section = FALSE;
 	      namelen = strlen ((char *)p) + 1;
 	      p += namelen;
 	      section_len -= namelen + 4;
@@ -8393,7 +8451,13 @@ process_arm_specific (FILE *file)
 		  if (public_section)
 		    {
 		      while (p < end)
-			p = display_arm_attribute(p);
+			p = display_pub_attribute (p);
+		    }
+		  else if (gnu_section)
+		    {
+		      while (p < end)
+			p = display_gnu_attribute (p,
+						   display_proc_gnu_attribute);
 		    }
 		  else
 		    {
@@ -8415,6 +8479,13 @@ process_arm_specific (FILE *file)
 }
 
 static int
+process_arm_specific (FILE *file)
+{
+  return process_attributes (file, "aeabi", SHT_ARM_ATTRIBUTES,
+			     display_arm_attribute, NULL);
+}
+
+static int
 process_mips_specific (FILE *file)
 {
   Elf_Internal_Dyn *entry;