include/ChangeLog

2011-07-11  Catherine Moore  <clm@codesourcery.com>

	* bfdlink.h (flag_type): New enumeration.
	(flag_info_list): New structure.
	(flag_info): New structure.

bfd/ChangeLog
2011-07-11  Catherine Moore  <clm@codesourcery.com>

	* aout-adobe.c (aout_32_bfd_lookup_section_flags): New definition.
	* aout-target.h (MY_bfd_lookup_section_flags): New definition.
	* aout-tic30.c (MY_bfd_lookup_section_flags): New definition.
        * bfd-in2.h: Regenerated.
	* bfd.c (bfd_lookup_section_flags): New definition.
	* binary.c (binary_bfd_lookup_section_flags): New definition.
	* bout.c (b_out_bfd_lookup_section_flags): New definition.
	* coff-alpha.c (_bfd_ecoff_bfd_lookup_section_flags): New definition.
	* coff-mips.c (_bfd_ecoff_bfd_lookup_section_flags): New definition.
	* coff-rs6000.c (rs6000coff_vec): Include
	bfd_generic_lookup_section_flags.
	(pmac_xcoff_vec): Likewise.
	* coffcode.h (coff_bfd_lookup_section_flags): New definition.
	* coff64-rs6000.c (rs6000coff64_vec): Include
	bfd_generic_lookup_section_flags.
	(aix5coff64_vec): Likewise.
	* ecoff.c (bfd_debug_section): Initialize flag_info field.
	* elf-bfd.h (elf_backend_lookup_section_flags_hook): Declare.
	(bfd_elf_lookup_section_flags): Declare.
	* elflink.c (bfd_elf_lookup_section_flags): New function.
	* elfxx-target.h (bfd_elfNN_bfd_lookup_section_flags): Define.
	(elf_backend_lookup_section_flags_hook): Define.
	(elf_backend_data): Add elf_backend_lookup_section_flags_hook.
	* i386msdos.c (msdos_bfd_lookup_section_flags): New define.
	* i386os9k.c (os9k_bfd_lookup_section_flags): New define.
	* ieee.c (ieee_bfd_lookup_section_flags): New define.
	* ihex.c (ihex_bfd_lookup_section_flags): New define.
	* libbfd-in.h (_bfd_nolink_bfd_lookup_section_flags): Declare.
	(bfd_generic_lookup_section_flags): Declare.
	* libbfd.h: Regenerated.
	* mach-o-target.c (bfd_mach_o_bfd_lookup_section_flags): New.
	* mmo.c (mmo_bfd_lookup_section_flags): New definition.
	* nlm-target.h (nlm_bfd_lookup_section_flags): New definition.
	* oasys.c (oasys_bfd_lookup_section_flags): New definition.
	* pef.c (bfd_pef_bfd_lookup_section_flags): New definition.
	* plugin.c (bfd_plugin_bfd_lookup_section_flags): New definition.
	* ppcboot.c (ppcboot_bfd_lookup_section_flags): New definition.
	* reloc.c (bfd_generic_lookup_section_flags): New function.
	* som.c (som_bfd_lookup_section_flags): New definition.
	* srec.c (srec_bfd_lookup_section_flags): New definition.
	* targets.c (flag_info): Declare.
	(NAME##_bfd_lookup_section_flags): Add to LINK jump table.
	(_bfd_lookup_section_flags): New.
	* tekhex.c (tekhex_bfd_lookup_section_flags): New definition.
	* versados.c (versados_bfd_lookup_section_flags): New definition.
	* vms-alpha.c (alpha_vms_bfd_lookup_section_flag): New definition.
	* xsym.c (bfd_sym_bfd_lookup_section_flags): New definition.

ld/ChangeLog
2011-07-11  Catherine Moore  <clm@codesourcery.com>

	* ld.h (section_flag_list): Add field to struct wildcard_spec.
	* ld.texinfo (INPUT_SECTION_FLAGS): Document.
	* ldgram.y (flag_info_list, flag_info): Add to union.
	(INPUT_SECTION_FLAGS): New token.
	(wildcard_spec): Initialize section_flag_list to NULL for
	each alternative.
	(sect_flag_list, sect_flags): New rules.
	(input_section_spec_no_keep): Add alternatives to recognize
	sect_flags.
	* ldlang.c (walk_wild_consider_section): Initialize
	section_flag_info field of the section struct.
	(lang_add_section): Check input section flags.
	(lang_add_wild): Initialize section_flag_list field of
	the statement struct.
	* ldlang.h (lang_input_statement_struct): Add section_flag_list field.
	(lang_wild_statement_struct): Likewise.
	* ldlex.l (INPUT_SECTION_FLAGS): New token.
	* mri.c (mri_draw_tree): Initialize section_flag_list to NULL.
	* NEWS: Announce INPUT_SECTION_FLAGS enhancement.

ld/testsuite/ChangeLog
2011-07-11 Catherine Moore  <clm@cm00re.com>

	* ld-scripts/section-flags-1.s: New.
	* ld-scripts/section-flags-1.t: New.
	* ld-scripts/section-flags-2.s: New.
	* ld-scripts/section-flags-2.t: New.
	* ld-scripts/section-flags.exp: New.

1 files changed, 77 insertions, 0 deletions

diff --git a/bfd/elflink.c b/bfd/elflink.c
index 238a4aa..e2cb28c 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -12167,6 +12167,83 @@ bfd_elf_gc_record_vtentry (bfd *abfd ATTRIBUTE_UNUSED,
   return TRUE;
 }
 
+/* Map an ELF section header flag to its corresponding string.  */
+typedef struct
+{
+  char *flag_name;
+  flagword flag_value;
+} elf_flags_to_name_table;
+
+static elf_flags_to_name_table elf_flags_to_names [] =
+{
+  { "SHF_WRITE", SHF_WRITE },
+  { "SHF_ALLOC", SHF_ALLOC },
+  { "SHF_EXECINSTR", SHF_EXECINSTR },
+  { "SHF_MERGE", SHF_MERGE },
+  { "SHF_STRINGS", SHF_STRINGS },
+  { "SHF_INFO_LINK", SHF_INFO_LINK},
+  { "SHF_LINK_ORDER", SHF_LINK_ORDER},
+  { "SHF_OS_NONCONFORMING", SHF_OS_NONCONFORMING},
+  { "SHF_GROUP", SHF_GROUP },
+  { "SHF_TLS", SHF_TLS },
+  { "SHF_MASKOS", SHF_MASKOS },
+  { "SHF_EXCLUDE", SHF_EXCLUDE },
+};
+
+void
+bfd_elf_lookup_section_flags (struct bfd_link_info *info,
+			      struct flag_info *finfo)
+{
+  bfd *output_bfd = info->output_bfd;
+  const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
+  struct flag_info_list *tf = finfo->flag_list;
+  int with_hex = 0;
+  int without_hex = 0;
+
+  for (tf = finfo->flag_list; tf != NULL; tf = tf->next)
+    {
+      int i;
+      if (bed->elf_backend_lookup_section_flags_hook)
+	{
+	  flagword hexval =
+	     (*bed->elf_backend_lookup_section_flags_hook) ((char *) tf->name);
+
+	  if (hexval != 0)
+	    {
+	      if (tf->with == with_flags)
+		with_hex |= hexval;
+	      else if (tf->with == without_flags)
+		without_hex |= hexval;
+	      tf->valid = TRUE;
+	      continue;
+	    }
+	}
+      for (i = 0; i < 12; i++)
+	{
+	  if (!strcmp (tf->name, elf_flags_to_names[i].flag_name))
+	    {
+	      if (tf->with == with_flags)
+		with_hex |= elf_flags_to_names[i].flag_value;
+	      else if (tf->with == without_flags)
+		without_hex |= elf_flags_to_names[i].flag_value;
+	      tf->valid = TRUE;
+	      continue;
+	    }
+	}
+      if (tf->valid == FALSE)
+	{
+	  info->callbacks->einfo 
+		(_("Unrecognized INPUT_SECTION_FLAG %s\n"), tf->name);
+	  return;
+	}
+    }
+ finfo->flags_initialized = TRUE;
+ finfo->only_with_flags |= with_hex;
+ finfo->not_with_flags |= without_hex;
+
+ return;
+}
+
 struct alloc_got_off_arg {
   bfd_vma gotoff;
   struct bfd_link_info *info;