old-cross-binutils/bfd/som.h

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/* HP PA-RISC SOM object file format: definitions internal to BFD.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 2000, 2001,
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2002, 2003, 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
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Contributed by the Center for Software Science at the
University of Utah (pa-gdb-bugs@cs.utah.edu).
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
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#ifndef _SOM_H
#define _SOM_H
#include "libhppa.h"
* 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.
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/* We want reloc.h to provide PA 2.0 defines. */
#define PA_2_0
bfd/ 2010-06-10 Tristan Gingold <gingold@adacore.com> * som.c: Can now be compiled on any host. Include bfd headers instead of system one. (som_compute_checksum): Parameter is now a pointer to a som_external_header structure. Adjust. (struct section_to_type): Field section is now const. (R_DLT_REL, R_AUX_UNWIND, R_SEC_STMT): Removed conditional definition. (R_LONG_PCREL_MODE, R_N0SEL, R_N1SEL, R_LINETAB): Ditto. (R_LINETAB_ESC, R_LTP_OVERRIDE, R_COMMENT): Ditto. (som_swap_clock_in, som_swap_clock_out): New functions. (som_swap_header_in, som_swap_header_out): Likewise. (som_swap_space_dictionary_in): Likewise. (som_swap_space_dictionary_out): Likewise. (som_swap_subspace_dictionary_in): Likewise. (som_swap_subspace_dictionary_record_out): Likewise. (som_swap_aux_id_in, som_swap_aux_id_out): Likewise. (som_swap_string_auxhdr_out): Likewise. (som_swap_compilation_unit_out): Likewise. (som_swap_exec_auxhdr_in): Likewise. (som_swap_exec_auxhdr_out): Likewise. (som_swap_lst_header_in): Likewise. (som_object_setup): Adjust parameter type using bfd types. (setup_sections): Likewise. Ditto for object file types. Use intermediate variables for external representation and use the swap functions to convert. (som_object_p): Ditto. Remove #ifdef/#endif on always defined macros. (som_prep_headers): Likewise. (som_write_symbol_strings): Likewise. (som_begin_writing): Likewise. (som_finish_writing): Likewise. (som_build_and_write_symbol_table): Likewise. (bfd_section_from_som_symbol): Likewise. (som_slurp_symbol_table): Likewise. (som_bfd_print_private_bfd_data): Likewise. (bfd_som_attach_aux_hdr): Likewise. Clear the padding. (bfd_som_attach_compilation_unit): Likewise. (som_bfd_count_ar_symbols): Likewise. (som_bfd_fill_in_ar_symbols): Likewise. (som_slurp_armap): Likewise. (som_bfd_ar_write_symbol_stuff): Likewise. (som_write_armap): Likewise. Use _bfd_ar_spacepad instead of sprintf to write header fields. * som.h: Include bfd headers instead of system one. (FILE_HDR_SIZE, AUX_HDR_SIZE): Removed. (struct somdata): Use bfd structures instead of system ones. (struct som_section_data_struct): Likewise. (struct som_subspace_dictionary_record): Removed (now in include/som/internal.h) gas/ 2010-06-10 Tristan Gingold <gingold@adacore.com> * config/obj-som.h: Includes som/reloc.h
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#include "som/aout.h"
#include "som/lst.h"
#include "som/internal.h"
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/* The SOM BFD backend doesn't currently use anything from these
two include files, but it's likely to need them in the future. */
#ifdef R_DLT_REL
#include <shl.h>
#include <dl.h>
#endif
bfd/ 2010-06-10 Tristan Gingold <gingold@adacore.com> * som.c: Can now be compiled on any host. Include bfd headers instead of system one. (som_compute_checksum): Parameter is now a pointer to a som_external_header structure. Adjust. (struct section_to_type): Field section is now const. (R_DLT_REL, R_AUX_UNWIND, R_SEC_STMT): Removed conditional definition. (R_LONG_PCREL_MODE, R_N0SEL, R_N1SEL, R_LINETAB): Ditto. (R_LINETAB_ESC, R_LTP_OVERRIDE, R_COMMENT): Ditto. (som_swap_clock_in, som_swap_clock_out): New functions. (som_swap_header_in, som_swap_header_out): Likewise. (som_swap_space_dictionary_in): Likewise. (som_swap_space_dictionary_out): Likewise. (som_swap_subspace_dictionary_in): Likewise. (som_swap_subspace_dictionary_record_out): Likewise. (som_swap_aux_id_in, som_swap_aux_id_out): Likewise. (som_swap_string_auxhdr_out): Likewise. (som_swap_compilation_unit_out): Likewise. (som_swap_exec_auxhdr_in): Likewise. (som_swap_exec_auxhdr_out): Likewise. (som_swap_lst_header_in): Likewise. (som_object_setup): Adjust parameter type using bfd types. (setup_sections): Likewise. Ditto for object file types. Use intermediate variables for external representation and use the swap functions to convert. (som_object_p): Ditto. Remove #ifdef/#endif on always defined macros. (som_prep_headers): Likewise. (som_write_symbol_strings): Likewise. (som_begin_writing): Likewise. (som_finish_writing): Likewise. (som_build_and_write_symbol_table): Likewise. (bfd_section_from_som_symbol): Likewise. (som_slurp_symbol_table): Likewise. (som_bfd_print_private_bfd_data): Likewise. (bfd_som_attach_aux_hdr): Likewise. Clear the padding. (bfd_som_attach_compilation_unit): Likewise. (som_bfd_count_ar_symbols): Likewise. (som_bfd_fill_in_ar_symbols): Likewise. (som_slurp_armap): Likewise. (som_bfd_ar_write_symbol_stuff): Likewise. (som_write_armap): Likewise. Use _bfd_ar_spacepad instead of sprintf to write header fields. * som.h: Include bfd headers instead of system one. (FILE_HDR_SIZE, AUX_HDR_SIZE): Removed. (struct somdata): Use bfd structures instead of system ones. (struct som_section_data_struct): Likewise. (struct som_subspace_dictionary_record): Removed (now in include/som/internal.h) gas/ 2010-06-10 Tristan Gingold <gingold@adacore.com> * config/obj-som.h: Includes som/reloc.h
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#if defined (HOST_HPPABSD) || defined (HOST_HPPAOSF)
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/* BSD uses a completely different scheme for object file identification.
so for now, define _PA_RISC_ID to accept any random value for a model
number. */
#undef _PA_RISC_ID
#define _PA_RISC_ID(__m_num) 1
#endif /* HOST_HPPABSD */
typedef struct som_symbol
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{
asymbol symbol;
unsigned int som_type;
/* Structured like the ELF tc_data union. Allows more code sharing
in GAS this way. */
union
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{
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struct
{
unsigned int hppa_arg_reloc;
unsigned int hppa_priv_level;
} ap;
PTR any;
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}
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tc_data;
/* Index of this symbol in the symbol table. Only used when
building relocation streams for incomplete objects. */
int index;
/* How many times this symbol is used in a relocation. By sorting
the symbols from most used to least used we can significantly
reduce the size of the relocation stream for incomplete objects. */
int reloc_count;
/* During object file writing, the offset of the name of this symbol
in the SOM string table. */
int stringtab_offset;
}
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som_symbol_type;
/* A structure containing all the magic information stored in a BFD's
private data which needs to be copied during an objcopy/strip run. */
struct som_exec_data
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{
/* Sort-of a magic number. BSD uses it to distinguish between
native executables and hpux executables. */
short system_id;
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/* Magic exec flags. These control things like whether or not
null pointer dereferencing is allowed and the like. */
long exec_flags;
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/* We must preserve the version identifier too. Some versions
of the HP linker do not grok NEW_VERSION_ID for reasons unknown. */
unsigned int version_id;
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/* Add more stuff here as needed. Good examples of information
we might want to pass would be presumed_dp, entry_* and maybe
others from the file header. */
};
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struct somdata
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{
/* All the magic information about an executable which lives
in the private BFD structure and needs to be copied from
the input bfd to the output bfd during an objcopy/strip. */
struct som_exec_data *exec_data;
/* These three fields are only used when writing files and are
generated from scratch. They need not be copied for objcopy
or strip to work. */
bfd/ 2010-06-10 Tristan Gingold <gingold@adacore.com> * som.c: Can now be compiled on any host. Include bfd headers instead of system one. (som_compute_checksum): Parameter is now a pointer to a som_external_header structure. Adjust. (struct section_to_type): Field section is now const. (R_DLT_REL, R_AUX_UNWIND, R_SEC_STMT): Removed conditional definition. (R_LONG_PCREL_MODE, R_N0SEL, R_N1SEL, R_LINETAB): Ditto. (R_LINETAB_ESC, R_LTP_OVERRIDE, R_COMMENT): Ditto. (som_swap_clock_in, som_swap_clock_out): New functions. (som_swap_header_in, som_swap_header_out): Likewise. (som_swap_space_dictionary_in): Likewise. (som_swap_space_dictionary_out): Likewise. (som_swap_subspace_dictionary_in): Likewise. (som_swap_subspace_dictionary_record_out): Likewise. (som_swap_aux_id_in, som_swap_aux_id_out): Likewise. (som_swap_string_auxhdr_out): Likewise. (som_swap_compilation_unit_out): Likewise. (som_swap_exec_auxhdr_in): Likewise. (som_swap_exec_auxhdr_out): Likewise. (som_swap_lst_header_in): Likewise. (som_object_setup): Adjust parameter type using bfd types. (setup_sections): Likewise. Ditto for object file types. Use intermediate variables for external representation and use the swap functions to convert. (som_object_p): Ditto. Remove #ifdef/#endif on always defined macros. (som_prep_headers): Likewise. (som_write_symbol_strings): Likewise. (som_begin_writing): Likewise. (som_finish_writing): Likewise. (som_build_and_write_symbol_table): Likewise. (bfd_section_from_som_symbol): Likewise. (som_slurp_symbol_table): Likewise. (som_bfd_print_private_bfd_data): Likewise. (bfd_som_attach_aux_hdr): Likewise. Clear the padding. (bfd_som_attach_compilation_unit): Likewise. (som_bfd_count_ar_symbols): Likewise. (som_bfd_fill_in_ar_symbols): Likewise. (som_slurp_armap): Likewise. (som_bfd_ar_write_symbol_stuff): Likewise. (som_write_armap): Likewise. Use _bfd_ar_spacepad instead of sprintf to write header fields. * som.h: Include bfd headers instead of system one. (FILE_HDR_SIZE, AUX_HDR_SIZE): Removed. (struct somdata): Use bfd structures instead of system ones. (struct som_section_data_struct): Likewise. (struct som_subspace_dictionary_record): Removed (now in include/som/internal.h) gas/ 2010-06-10 Tristan Gingold <gingold@adacore.com> * config/obj-som.h: Includes som/reloc.h
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struct som_header *file_hdr;
struct som_string_auxhdr *copyright_aux_hdr;
struct som_string_auxhdr *version_aux_hdr;
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struct som_exec_auxhdr *exec_hdr;
bfd/ 2010-06-10 Tristan Gingold <gingold@adacore.com> * som.c: Can now be compiled on any host. Include bfd headers instead of system one. (som_compute_checksum): Parameter is now a pointer to a som_external_header structure. Adjust. (struct section_to_type): Field section is now const. (R_DLT_REL, R_AUX_UNWIND, R_SEC_STMT): Removed conditional definition. (R_LONG_PCREL_MODE, R_N0SEL, R_N1SEL, R_LINETAB): Ditto. (R_LINETAB_ESC, R_LTP_OVERRIDE, R_COMMENT): Ditto. (som_swap_clock_in, som_swap_clock_out): New functions. (som_swap_header_in, som_swap_header_out): Likewise. (som_swap_space_dictionary_in): Likewise. (som_swap_space_dictionary_out): Likewise. (som_swap_subspace_dictionary_in): Likewise. (som_swap_subspace_dictionary_record_out): Likewise. (som_swap_aux_id_in, som_swap_aux_id_out): Likewise. (som_swap_string_auxhdr_out): Likewise. (som_swap_compilation_unit_out): Likewise. (som_swap_exec_auxhdr_in): Likewise. (som_swap_exec_auxhdr_out): Likewise. (som_swap_lst_header_in): Likewise. (som_object_setup): Adjust parameter type using bfd types. (setup_sections): Likewise. Ditto for object file types. Use intermediate variables for external representation and use the swap functions to convert. (som_object_p): Ditto. Remove #ifdef/#endif on always defined macros. (som_prep_headers): Likewise. (som_write_symbol_strings): Likewise. (som_begin_writing): Likewise. (som_finish_writing): Likewise. (som_build_and_write_symbol_table): Likewise. (bfd_section_from_som_symbol): Likewise. (som_slurp_symbol_table): Likewise. (som_bfd_print_private_bfd_data): Likewise. (bfd_som_attach_aux_hdr): Likewise. Clear the padding. (bfd_som_attach_compilation_unit): Likewise. (som_bfd_count_ar_symbols): Likewise. (som_bfd_fill_in_ar_symbols): Likewise. (som_slurp_armap): Likewise. (som_bfd_ar_write_symbol_stuff): Likewise. (som_write_armap): Likewise. Use _bfd_ar_spacepad instead of sprintf to write header fields. * som.h: Include bfd headers instead of system one. (FILE_HDR_SIZE, AUX_HDR_SIZE): Removed. (struct somdata): Use bfd structures instead of system ones. (struct som_section_data_struct): Likewise. (struct som_subspace_dictionary_record): Removed (now in include/som/internal.h) gas/ 2010-06-10 Tristan Gingold <gingold@adacore.com> * config/obj-som.h: Includes som/reloc.h
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struct som_compilation_unit *comp_unit;
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/* Pointers to a saved copy of the symbol and string tables. These
need not be copied for objcopy or strip to work. */
som_symbol_type *symtab;
char *stringtab;
asymbol **sorted_syms;
/* We remember these offsets so that after check_file_format, we have
no dependencies on the particular format of the exec_hdr.
These offsets need not be copied for objcopy or strip to work. */
file_ptr sym_filepos;
file_ptr str_filepos;
file_ptr reloc_filepos;
unsigned stringtab_size;
void * line_info;
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};
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struct som_data_struct
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{
struct somdata a;
};
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/* 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. */
struct som_copyable_section_data_struct
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{
/* Various fields in space and subspace headers that we need
to pass around. */
unsigned int sort_key : 8;
unsigned int access_control_bits : 7;
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
back to the section for this space. */
asection *container;
/* The user-specified space number. It is wrong to use this as
an index since duplicates and holes are allowed. */
int space_number;
/* Add more stuff here as needed. Good examples of information
we might want to pass would be initialization pointers,
and the many subspace flags we do not represent yet. */
};
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/* Used to keep extra SOM specific information for a given section.
reloc_size holds the size of the relocation stream, note this
is very different from the number of relocations as SOM relocations
are variable length.
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reloc_stream is the actual stream of relocation entries. */
struct som_section_data_struct
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{
struct som_copyable_section_data_struct *copy_data;
unsigned int reloc_size;
unsigned char *reloc_stream;
bfd/ 2010-06-10 Tristan Gingold <gingold@adacore.com> * som.c: Can now be compiled on any host. Include bfd headers instead of system one. (som_compute_checksum): Parameter is now a pointer to a som_external_header structure. Adjust. (struct section_to_type): Field section is now const. (R_DLT_REL, R_AUX_UNWIND, R_SEC_STMT): Removed conditional definition. (R_LONG_PCREL_MODE, R_N0SEL, R_N1SEL, R_LINETAB): Ditto. (R_LINETAB_ESC, R_LTP_OVERRIDE, R_COMMENT): Ditto. (som_swap_clock_in, som_swap_clock_out): New functions. (som_swap_header_in, som_swap_header_out): Likewise. (som_swap_space_dictionary_in): Likewise. (som_swap_space_dictionary_out): Likewise. (som_swap_subspace_dictionary_in): Likewise. (som_swap_subspace_dictionary_record_out): Likewise. (som_swap_aux_id_in, som_swap_aux_id_out): Likewise. (som_swap_string_auxhdr_out): Likewise. (som_swap_compilation_unit_out): Likewise. (som_swap_exec_auxhdr_in): Likewise. (som_swap_exec_auxhdr_out): Likewise. (som_swap_lst_header_in): Likewise. (som_object_setup): Adjust parameter type using bfd types. (setup_sections): Likewise. Ditto for object file types. Use intermediate variables for external representation and use the swap functions to convert. (som_object_p): Ditto. Remove #ifdef/#endif on always defined macros. (som_prep_headers): Likewise. (som_write_symbol_strings): Likewise. (som_begin_writing): Likewise. (som_finish_writing): Likewise. (som_build_and_write_symbol_table): Likewise. (bfd_section_from_som_symbol): Likewise. (som_slurp_symbol_table): Likewise. (som_bfd_print_private_bfd_data): Likewise. (bfd_som_attach_aux_hdr): Likewise. Clear the padding. (bfd_som_attach_compilation_unit): Likewise. (som_bfd_count_ar_symbols): Likewise. (som_bfd_fill_in_ar_symbols): Likewise. (som_slurp_armap): Likewise. (som_bfd_ar_write_symbol_stuff): Likewise. (som_write_armap): Likewise. Use _bfd_ar_spacepad instead of sprintf to write header fields. * som.h: Include bfd headers instead of system one. (FILE_HDR_SIZE, AUX_HDR_SIZE): Removed. (struct somdata): Use bfd structures instead of system ones. (struct som_section_data_struct): Likewise. (struct som_subspace_dictionary_record): Removed (now in include/som/internal.h) gas/ 2010-06-10 Tristan Gingold <gingold@adacore.com> * config/obj-som.h: Includes som/reloc.h
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struct som_space_dictionary_record *space_dict;
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struct som_subspace_dictionary_record *subspace_dict;
};
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#define somdata(bfd) ((bfd)->tdata.som_data->a)
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#define obj_som_exec_data(bfd) (somdata (bfd).exec_data)
#define obj_som_file_hdr(bfd) (somdata (bfd).file_hdr)
#define obj_som_exec_hdr(bfd) (somdata (bfd).exec_hdr)
#define obj_som_copyright_hdr(bfd) (somdata (bfd).copyright_aux_hdr)
#define obj_som_version_hdr(bfd) (somdata (bfd).version_aux_hdr)
#define obj_som_compilation_unit(bfd) (somdata (bfd).comp_unit)
#define obj_som_symtab(bfd) (somdata (bfd).symtab)
#define obj_som_stringtab(bfd) (somdata (bfd).stringtab)
#define obj_som_sym_filepos(bfd) (somdata (bfd).sym_filepos)
#define obj_som_str_filepos(bfd) (somdata (bfd).str_filepos)
#define obj_som_stringtab_size(bfd) (somdata (bfd).stringtab_size)
#define obj_som_reloc_filepos(bfd) (somdata (bfd).reloc_filepos)
#define obj_som_sorted_syms(bfd) (somdata (bfd).sorted_syms)
#define som_section_data(sec) ((struct som_section_data_struct *) sec->used_by_bfd)
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#define som_symbol_data(symbol) ((som_symbol_type *) symbol)
/* Defines groups of basic relocations. FIXME: These should
be the only basic relocations created by GAS. The rest
should be internal to the BFD backend.
The idea is both SOM and ELF define these basic relocation
types so they map into a SOM or ELF specific relocation as
appropriate. This allows GAS to share much more code
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between the two object formats. */
#define R_HPPA_NONE R_NO_RELOCATION
#define R_HPPA R_CODE_ONE_SYMBOL
#define R_HPPA_PCREL_CALL R_PCREL_CALL
#define R_HPPA_ABS_CALL R_ABS_CALL
#define R_HPPA_GOTOFF R_DP_RELATIVE
#define R_HPPA_ENTRY R_ENTRY
#define R_HPPA_EXIT R_EXIT
#define R_HPPA_COMPLEX R_COMP1
#define R_HPPA_BEGIN_BRTAB R_BEGIN_BRTAB
#define R_HPPA_END_BRTAB R_END_BRTAB
#define R_HPPA_BEGIN_TRY R_BEGIN_TRY
#define R_HPPA_END_TRY R_END_TRY
/* Exported functions, mostly for use by GAS. */
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bfd_boolean bfd_som_set_section_attributes (asection *, int, int, unsigned int, int);
bfd_boolean bfd_som_set_subsection_attributes (asection *, asection *, int, unsigned int, int, int, int, int);
void bfd_som_set_symbol_type (asymbol *, unsigned int);
bfd_boolean bfd_som_attach_aux_hdr (bfd *, int, char *);
int ** hppa_som_gen_reloc_type (bfd *, int, int, enum hppa_reloc_field_selector_type_alt, int, asymbol *);
bfd_boolean bfd_som_attach_compilation_unit (bfd *, const char *, const char *, const char *, const char *);
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#endif /* _SOM_H */