darkkirb/old-cross-binutils
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
old-cross-binutils/bfd/som.h

201 lines
7 KiB
C
Raw Normal View History

* som.h (struct som_symbol): Add new fields to hold additional information needed to build/write symbol tables and fixup streams. (struct som_section_data_struct): Add new fields to hold additional information needed to build/write space and subspace headers. (som_symbol_data): New accessor macro for SOM symbol information. (R_HPPA_*): Basic relocation types to be used by the assembler.
1993-11-12 23:08:13 +00:00
/* HP PA-RISC SOM object file format: definitions internal to BFD.
* som.h (struct som_exec_data): New structure to hold exec info that must be preserved when running objcopy/strip. (struct somdata): Add new "exec_data" field and accessor macro. Add some comments on how the various fields are used. (som_section_data_struct): Make is_space and is_subspace bitfields. Delete unused subspace_index. All references now use the target_index field within the section structure itself. * som.c (make_unique_section): Delete unused declaration. (som_bfd_copy_private_bfd_data): New function. (som_object_setup): Allocate space for and save exec information that needs to be copied during objcopy/strip. (som_mkobject): Do not allocate space for a file header here. It is not used when only reading SOM objects. (som_prep_headers): Allocate space for and attach a file header to the output bfd. For executables, use the saved system_id value rather than trying to guess the right value. Do not abort wwhen setting file_hdr->entry* for executables. (som_begin_writing): For executables, set the exec_entry and exec_flags fields. (som_copy_private_backend_section_data): Always return a value.
1994-03-19 05:06:54 +00:00
Copyright (C) 1990, 91, 92, 93, 94 Free Software Foundation, Inc.
* som.h (struct som_symbol): Add new fields to hold additional information needed to build/write symbol tables and fixup streams. (struct som_section_data_struct): Add new fields to hold additional information needed to build/write space and subspace headers. (som_symbol_data): New accessor macro for SOM symbol information. (R_HPPA_*): Basic relocation types to be used by the assembler.
1993-11-12 23:08:13 +00:00
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 2 of the License, or
(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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef _SOM_H
#define _SOM_H
#include "../bfd/sysdep.h"
* som.[ch]: Do not include libhppa.h in som.c, instead include it in som.h. * elf32-hppa.[ch]: Do not include libhppa.h in elf32-hppa.c, instead include it in elf32-hppa.h.
1994-03-02 23:04:29 +00:00
#include "libhppa.h"
* som.h (struct som_symbol): Add new fields to hold additional information needed to build/write symbol tables and fixup streams. (struct som_section_data_struct): Add new fields to hold additional information needed to build/write space and subspace headers. (som_symbol_data): New accessor macro for SOM symbol information. (R_HPPA_*): Basic relocation types to be used by the assembler.
1993-11-12 23:08:13 +00:00
#include <a.out.h>
* som.h: Include <lst.h> and <ar.h>.
1994-02-13 22:30:51 +00:00
#include <lst.h>
#include <ar.h>
* som.h (struct som_symbol): Add new fields to hold additional information needed to build/write symbol tables and fixup streams. (struct som_section_data_struct): Add new fields to hold additional information needed to build/write space and subspace headers. (som_symbol_data): New accessor macro for SOM symbol information. (R_HPPA_*): Basic relocation types to be used by the assembler.
1993-11-12 23:08:13 +00:00
* som.h (_PA_RISC_ID): Treat HOST_HPPAOSF just like HOST_HPPABSD.
1994-03-04 04:04:48 +00:00
#if defined(HOST_HPPABSD) || defined (HOST_HPPAOSF)
* som.h (struct som_symbol): Add new fields to hold additional information needed to build/write symbol tables and fixup streams. (struct som_section_data_struct): Add new fields to hold additional information needed to build/write space and subspace headers. (som_symbol_data): New accessor macro for SOM symbol information. (R_HPPA_*): Basic relocation types to be used by the assembler.
1993-11-12 23:08:13 +00:00
/* 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 */
#define FILE_HDR_SIZE sizeof(struct header)
#define AUX_HDR_SIZE sizeof(struct som_exec_auxhdr)
typedef struct som_symbol
{
asymbol symbol;
short desc;
char other;
unsigned char type;
unsigned int som_type;
/* Structured like the ELF tc_data union. Allows more code sharing
in GAS this way. */
union
{
unsigned int hppa_arg_reloc;
PTR any;
}
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;
/* The unwind descriptor bits associated with R_ENTRY relocations
for functions (not enough room in a BFD reloc to store all the
information, so we tack it onto the symbol associated with the
function. */
char *unwind;
}
som_symbol_type;
* som.h (struct som_exec_data): New structure to hold exec info that must be preserved when running objcopy/strip. (struct somdata): Add new "exec_data" field and accessor macro. Add some comments on how the various fields are used. (som_section_data_struct): Make is_space and is_subspace bitfields. Delete unused subspace_index. All references now use the target_index field within the section structure itself. * som.c (make_unique_section): Delete unused declaration. (som_bfd_copy_private_bfd_data): New function. (som_object_setup): Allocate space for and save exec information that needs to be copied during objcopy/strip. (som_mkobject): Do not allocate space for a file header here. It is not used when only reading SOM objects. (som_prep_headers): Allocate space for and attach a file header to the output bfd. For executables, use the saved system_id value rather than trying to guess the right value. Do not abort wwhen setting file_hdr->entry* for executables. (som_begin_writing): For executables, set the exec_entry and exec_flags fields. (som_copy_private_backend_section_data): Always return a value.
1994-03-19 05:06:54 +00:00
/* 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
{
/* Sort-of a magic number. BSD uses it to distinguish between
native executables and hpux executables. */
short system_id;
/* Magic exec flags. These control things like whether or not
null pointer dereferencing is allowed and the like. */
long exec_flags;
/* 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. */
};
* som.h (struct som_symbol): Add new fields to hold additional information needed to build/write symbol tables and fixup streams. (struct som_section_data_struct): Add new fields to hold additional information needed to build/write space and subspace headers. (som_symbol_data): New accessor macro for SOM symbol information. (R_HPPA_*): Basic relocation types to be used by the assembler.
1993-11-12 23:08:13 +00:00
struct somdata
{
* som.h (struct som_exec_data): New structure to hold exec info that must be preserved when running objcopy/strip. (struct somdata): Add new "exec_data" field and accessor macro. Add some comments on how the various fields are used. (som_section_data_struct): Make is_space and is_subspace bitfields. Delete unused subspace_index. All references now use the target_index field within the section structure itself. * som.c (make_unique_section): Delete unused declaration. (som_bfd_copy_private_bfd_data): New function. (som_object_setup): Allocate space for and save exec information that needs to be copied during objcopy/strip. (som_mkobject): Do not allocate space for a file header here. It is not used when only reading SOM objects. (som_prep_headers): Allocate space for and attach a file header to the output bfd. For executables, use the saved system_id value rather than trying to guess the right value. Do not abort wwhen setting file_hdr->entry* for executables. (som_begin_writing): For executables, set the exec_entry and exec_flags fields. (som_copy_private_backend_section_data): Always return a value.
1994-03-19 05:06:54 +00:00
/* 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 a 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. */
* som.h (struct som_symbol): Add new fields to hold additional information needed to build/write symbol tables and fixup streams. (struct som_section_data_struct): Add new fields to hold additional information needed to build/write space and subspace headers. (som_symbol_data): New accessor macro for SOM symbol information. (R_HPPA_*): Basic relocation types to be used by the assembler.
1993-11-12 23:08:13 +00:00
struct header *file_hdr;
* som.h: Include <lst.h> and <ar.h>.
1994-02-13 22:30:51 +00:00
struct copyright_aux_hdr *copyright_aux_hdr;
struct user_string_aux_hdr *version_aux_hdr;
* som.h (struct som_exec_data): New structure to hold exec info that must be preserved when running objcopy/strip. (struct somdata): Add new "exec_data" field and accessor macro. Add some comments on how the various fields are used. (som_section_data_struct): Make is_space and is_subspace bitfields. Delete unused subspace_index. All references now use the target_index field within the section structure itself. * som.c (make_unique_section): Delete unused declaration. (som_bfd_copy_private_bfd_data): New function. (som_object_setup): Allocate space for and save exec information that needs to be copied during objcopy/strip. (som_mkobject): Do not allocate space for a file header here. It is not used when only reading SOM objects. (som_prep_headers): Allocate space for and attach a file header to the output bfd. For executables, use the saved system_id value rather than trying to guess the right value. Do not abort wwhen setting file_hdr->entry* for executables. (som_begin_writing): For executables, set the exec_entry and exec_flags fields. (som_copy_private_backend_section_data): Always return a value.
1994-03-19 05:06:54 +00:00
/* Pointers to a saved copy of the symbol and string tables. These
need not be copied for objcopy or strip to work. */
* som.h (struct som_symbol): Add new fields to hold additional information needed to build/write symbol tables and fixup streams. (struct som_section_data_struct): Add new fields to hold additional information needed to build/write space and subspace headers. (som_symbol_data): New accessor macro for SOM symbol information. (R_HPPA_*): Basic relocation types to be used by the assembler.
1993-11-12 23:08:13 +00:00
som_symbol_type *symtab;
char *stringtab;
/* We remember these offsets so that after check_file_format, we have
* som.h (struct som_exec_data): New structure to hold exec info that must be preserved when running objcopy/strip. (struct somdata): Add new "exec_data" field and accessor macro. Add some comments on how the various fields are used. (som_section_data_struct): Make is_space and is_subspace bitfields. Delete unused subspace_index. All references now use the target_index field within the section structure itself. * som.c (make_unique_section): Delete unused declaration. (som_bfd_copy_private_bfd_data): New function. (som_object_setup): Allocate space for and save exec information that needs to be copied during objcopy/strip. (som_mkobject): Do not allocate space for a file header here. It is not used when only reading SOM objects. (som_prep_headers): Allocate space for and attach a file header to the output bfd. For executables, use the saved system_id value rather than trying to guess the right value. Do not abort wwhen setting file_hdr->entry* for executables. (som_begin_writing): For executables, set the exec_entry and exec_flags fields. (som_copy_private_backend_section_data): Always return a value.
1994-03-19 05:06:54 +00:00
no dependencies on the particular format of the exec_hdr.
These offsets need not be copied for objcopy or strip to work. */
* som.h (struct som_symbol): Add new fields to hold additional information needed to build/write symbol tables and fixup streams. (struct som_section_data_struct): Add new fields to hold additional information needed to build/write space and subspace headers. (som_symbol_data): New accessor macro for SOM symbol information. (R_HPPA_*): Basic relocation types to be used by the assembler.
1993-11-12 23:08:13 +00:00
file_ptr sym_filepos;
file_ptr str_filepos;
file_ptr reloc_filepos;
unsigned stringtab_size;
};
struct som_data_struct
{
struct somdata a;
};
/* 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.
reloc_stream is the actual stream of relocation entries.
The BFD section index may not exactly match a SOM subspace index,
for this reason we keep track of the original SOM subspace index
when a subspace is turned into a BFD section. */
struct som_section_data_struct
{
* som.h (struct som_exec_data): New structure to hold exec info that must be preserved when running objcopy/strip. (struct somdata): Add new "exec_data" field and accessor macro. Add some comments on how the various fields are used. (som_section_data_struct): Make is_space and is_subspace bitfields. Delete unused subspace_index. All references now use the target_index field within the section structure itself. * som.c (make_unique_section): Delete unused declaration. (som_bfd_copy_private_bfd_data): New function. (som_object_setup): Allocate space for and save exec information that needs to be copied during objcopy/strip. (som_mkobject): Do not allocate space for a file header here. It is not used when only reading SOM objects. (som_prep_headers): Allocate space for and attach a file header to the output bfd. For executables, use the saved system_id value rather than trying to guess the right value. Do not abort wwhen setting file_hdr->entry* for executables. (som_begin_writing): For executables, set the exec_entry and exec_flags fields. (som_copy_private_backend_section_data): Always return a value.
1994-03-19 05:06:54 +00:00
unsigned int is_space : 1;
unsigned int is_subspace : 1;
* som.h (struct som_symbol): Add new fields to hold additional information needed to build/write symbol tables and fixup streams. (struct som_section_data_struct): Add new fields to hold additional information needed to build/write space and subspace headers. (som_symbol_data): New accessor macro for SOM symbol information. (R_HPPA_*): Basic relocation types to be used by the assembler.
1993-11-12 23:08:13 +00:00
unsigned int reloc_size;
char *reloc_stream;
asection *containing_space;
struct space_dictionary_record space_dict;
struct subspace_dictionary_record subspace_dict;
};
#define somdata(bfd) ((bfd)->tdata.som_data->a)
* som.h (struct som_exec_data): New structure to hold exec info that must be preserved when running objcopy/strip. (struct somdata): Add new "exec_data" field and accessor macro. Add some comments on how the various fields are used. (som_section_data_struct): Make is_space and is_subspace bitfields. Delete unused subspace_index. All references now use the target_index field within the section structure itself. * som.c (make_unique_section): Delete unused declaration. (som_bfd_copy_private_bfd_data): New function. (som_object_setup): Allocate space for and save exec information that needs to be copied during objcopy/strip. (som_mkobject): Do not allocate space for a file header here. It is not used when only reading SOM objects. (som_prep_headers): Allocate space for and attach a file header to the output bfd. For executables, use the saved system_id value rather than trying to guess the right value. Do not abort wwhen setting file_hdr->entry* for executables. (som_begin_writing): For executables, set the exec_entry and exec_flags fields. (som_copy_private_backend_section_data): Always return a value.
1994-03-19 05:06:54 +00:00
#define obj_som_exec_data(bfd) (somdata(bfd).exec_data)
* som.h (struct som_symbol): Add new fields to hold additional information needed to build/write symbol tables and fixup streams. (struct som_section_data_struct): Add new fields to hold additional information needed to build/write space and subspace headers. (som_symbol_data): New accessor macro for SOM symbol information. (R_HPPA_*): Basic relocation types to be used by the assembler.
1993-11-12 23:08:13 +00:00
#define obj_som_file_hdr(bfd) (somdata(bfd).file_hdr)
* som.h: Include <lst.h> and <ar.h>.
1994-02-13 22:30:51 +00:00
#define obj_som_copyright_hdr(bfd) (somdata(bfd).copyright_aux_hdr)
#define obj_som_version_hdr(bfd) (somdata(bfd).version_aux_hdr)
* som.h (struct som_symbol): Add new fields to hold additional information needed to build/write symbol tables and fixup streams. (struct som_section_data_struct): Add new fields to hold additional information needed to build/write space and subspace headers. (som_symbol_data): New accessor macro for SOM symbol information. (R_HPPA_*): Basic relocation types to be used by the assembler.
1993-11-12 23:08:13 +00:00
#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 som_section_data(sec) \
((struct som_section_data_struct *)sec->used_by_bfd)
#define som_symbol_data(symbol) \
* som.c (hppa_som_gen_reloc_type): Use correct enum type for field parameter. (bfd_som_set_section_attributes): Use unsigned int rather than unsigned char to avoid GNU-C extensions. (bfd_som_attach_aux_hdr): Return a boolean to indicate success or failure rather than aborting on failure. * som.h (bfd_som_set_section_attributes): Fix prototype to match som.c changes. (bfd_som_attach_aux_hdr): Add prototype. (hppa_som-gen_reloc_type): Likewise. * elf32-hppa.c: Add a couple casts to make HP compiler happy. (hppa_look_for_stubs_in_section): Do not return false on failure until rest of code is ready to handle it. Abort for now.
1994-03-02 19:59:03 +00:00
((som_symbol_type *) symbol)
* som.h (struct som_symbol): Add new fields to hold additional information needed to build/write symbol tables and fixup streams. (struct som_section_data_struct): Add new fields to hold additional information needed to build/write space and subspace headers. (som_symbol_data): New accessor macro for SOM symbol information. (R_HPPA_*): Basic relocation types to be used by the assembler.
1993-11-12 23:08:13 +00:00
/* 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 reloation as
appropriate. This allows GAS to share much more code
between the two object formats. */
#define R_HPPA_NONE R_NO_RELOCATION
#define R_HPPA R_CODE_ONE_SYMBOL
#define R_HPPA_ABS_CALL R_ABS_CALL
#define R_HPPA_PCREL_CALL R_PCREL_CALL
#define R_HPPA_GOTOFF R_DP_RELATIVE
#define R_HPPA_COMPLEX R_COMP1
#define R_HPPA_COMPLEX_PCREL_CALL R_COMP2
#define R_HPPA_COMPLEX_ABS_CALL R_COMP3
#define R_HPPA_ENTRY R_ENTRY
#define R_HPPA_EXIT R_EXIT
* som.h: Include <lst.h> and <ar.h>.
1994-02-13 22:30:51 +00:00
/* Exported functions, mostly for use by GAS. */
void bfd_som_set_section_attributes PARAMS ((asection *, int, int,
* som.c (hppa_som_gen_reloc_type): Use correct enum type for field parameter. (bfd_som_set_section_attributes): Use unsigned int rather than unsigned char to avoid GNU-C extensions. (bfd_som_attach_aux_hdr): Return a boolean to indicate success or failure rather than aborting on failure. * som.h (bfd_som_set_section_attributes): Fix prototype to match som.c changes. (bfd_som_attach_aux_hdr): Add prototype. (hppa_som-gen_reloc_type): Likewise. * elf32-hppa.c: Add a couple casts to make HP compiler happy. (hppa_look_for_stubs_in_section): Do not return false on failure until rest of code is ready to handle it. Abort for now.
1994-03-02 19:59:03 +00:00
unsigned int, int));
* som.h: Include <lst.h> and <ar.h>.
1994-02-13 22:30:51 +00:00
void bfd_som_set_subsection_attributes PARAMS ((asection *, asection *,
int, unsigned int, int));
void bfd_som_set_symbol_type PARAMS ((asymbol *, unsigned int));
void bfd_som_attach_unwind_info PARAMS ((asymbol *, char *));
* som.c (hppa_som_gen_reloc_type): Use correct enum type for field parameter. (bfd_som_set_section_attributes): Use unsigned int rather than unsigned char to avoid GNU-C extensions. (bfd_som_attach_aux_hdr): Return a boolean to indicate success or failure rather than aborting on failure. * som.h (bfd_som_set_section_attributes): Fix prototype to match som.c changes. (bfd_som_attach_aux_hdr): Add prototype. (hppa_som-gen_reloc_type): Likewise. * elf32-hppa.c: Add a couple casts to make HP compiler happy. (hppa_look_for_stubs_in_section): Do not return false on failure until rest of code is ready to handle it. Abort for now.
1994-03-02 19:59:03 +00:00
boolean bfd_som_attach_aux_hdr PARAMS ((bfd *, int, char *));
int ** hppa_som_gen_reloc_type
PARAMS ((bfd *, int, int, enum hppa_reloc_field_selector_type_alt));
* som.h (struct som_symbol): Add new fields to hold additional information needed to build/write symbol tables and fixup streams. (struct som_section_data_struct): Add new fields to hold additional information needed to build/write space and subspace headers. (som_symbol_data): New accessor macro for SOM symbol information. (R_HPPA_*): Basic relocation types to be used by the assembler.
1993-11-12 23:08:13 +00:00
#endif /* _SOM_H */
Reference in a new issue Copy permalink