* som.c (struct som_misc_symbol_info): Add is_comdat, is_common and

	dup_common fields.
	(setup_sections): Use som_subspace_dictionary_record struct instead
	subspace_dictionary_record.  Set SEC_LINK_ONCE if subspace is
	is_comdat, is_common or dup_common.
	(som_prep_headers): Use som_subspace_dictionary_record struct.  Set
	is_comdat, is_common and dup_common in section subspace_dict from
	copy_data.
	(som_begin_writing): Use som_subspace_dictionary_record struct.
	(som_finish_writing): Likewise.
	(som_bfd_derive_misc_symbol_info): Add support to set is_comdat,
	is_common and dup_common flags in info for symbol.  Add comment
	regarding linker support for these fields.  Slightly reorganize
	function.
	(som_build_and_write_symbol_table): Set is_comdat, is_common and
	dup_common fields in symbol table from symbol info.
	(bfd_som_set_subsection_attributes): Add comdat, common and dup_common
	arguments.  Set corresponding fields in copy_data.  Change all callers.
	(som_bfd_ar_write_symbol_stuff): Set dup_common flag in library
	symbol table.
	(som_vec): Add SEC_LINK_ONCE to applicable section flags.
	* som.h (som_subspace_dictionary_record): Define.
	(som_copyable_section_data_struct): Add is_comdat, is_common and
	dup_common fields.
	(som_section_data_struct): Use som_subspace_dictionary_record struct
	instead of subspace_dictionary_record.
	(bfd_boolean bfd_som_set_subsection_attributes): Adjust prototype.
	* config/obj-som.c (obj_som_init_stab_section): Add new arguments in
	call to obj_set_subsection_attributes.
	(obj_som_init_stab_section): Likewise.
	* config/tc-hppa.c (default_subspace_dict): Add comdat field.
	(pa_def_subspaces): Provide comdat default.
	(pa_subspace): Handle new "comdat" parameter.  Set SEC_LINK_ONCE and
	not SEC_IS_COMMON if section is comdat, common or dup_common.  Update
	calls to create_new_subspace and update_subspace to pass comdat flag.
	(create_new_subspace, update_subspace): Add new comdat argument.  Use
	it in calls to obj_set_subsection_attributes.
	* doc/c-hppa.texi (.subspa, .nsubspa): Document new comdat parameter
	and use of comdat, common and dup_comm parameters.

1 files changed, 35 insertions, 3 deletions

diff --git a/bfd/som.h b/bfd/som.h
index 537ddaad1f..3954855b61 100644
--- a/bfd/som.h
+++ b/bfd/som.h
@@ -27,7 +27,7 @@
 
 #include "libhppa.h"
 
-/* Enable PA2.0 if available */
+/* We want reloc.h to provide PA 2.0 defines.  */
 #define PA_2_0
 
 #include <a.out.h>
@@ -143,6 +143,35 @@ struct som_data_struct
     struct somdata a;
   };
 
+struct som_subspace_dictionary_record
+  {
+    int space_index;
+    unsigned int access_control_bits : 7;
+    unsigned int memory_resident : 1;
+    unsigned int dup_common : 1;
+    unsigned int is_common : 1;
+    unsigned int is_loadable : 1;
+    unsigned int quadrant : 2;
+    unsigned int initially_frozen : 1;
+    unsigned int is_first : 1;
+    unsigned int code_only : 1;
+    unsigned int sort_key : 8;
+    unsigned int replicate_init	: 1;
+    unsigned int continuation : 1;
+    unsigned int is_tspecific : 1;
+    unsigned int is_comdat : 1;
+    unsigned int reserved : 4;
+    int file_loc_init_value;
+    unsigned int initialization_length;
+    unsigned int subspace_start;
+    unsigned int subspace_length;
+    unsigned int reserved2 : 5;   
+    unsigned int alignment :27;
+    union name_pt name;
+    int fixup_request_index;
+    unsigned int fixup_request_quantity;
+  };
+
 /* Substructure of som_section_data_struct used to hold information
    which can't be represented by the generic BFD section structure,
    but which must be copied during objcopy or strip.  */
@@ -155,6 +184,9 @@ struct som_copyable_section_data_struct
     unsigned int is_defined : 1;
     unsigned int is_private : 1;
     unsigned int quadrant : 2;
+    unsigned int is_comdat : 1;
+    unsigned int is_common : 1;
+    unsigned int dup_common : 1;
 
     /* For subspaces, this points to the section which represents the
        space in which the subspace is contained.  For spaces it points
@@ -184,7 +216,7 @@ struct som_section_data_struct
     unsigned int reloc_size;
     char *reloc_stream;
     struct space_dictionary_record *space_dict;
-    struct subspace_dictionary_record *subspace_dict;
+    struct som_subspace_dictionary_record *subspace_dict;
   };
 
 #define somdata(bfd)			((bfd)->tdata.som_data->a)
@@ -231,7 +263,7 @@ struct som_section_data_struct
 bfd_boolean bfd_som_set_section_attributes
   PARAMS ((asection *, int, int, unsigned int, int));
 bfd_boolean bfd_som_set_subsection_attributes
-  PARAMS ((asection *, asection *, int, unsigned int, int));
+  PARAMS ((asection *, asection *, int, unsigned int, int, int, int, int));
 void bfd_som_set_symbol_type PARAMS ((asymbol *, unsigned int));
 bfd_boolean bfd_som_attach_aux_hdr PARAMS ((bfd *, int, char *));
 int ** hppa_som_gen_reloc_type