246 lines
9.3 KiB
C
246 lines
9.3 KiB
C
/* BFD XCOFF object file private structure.
|
|
Copyright 2001, 2002 Free Software Foundation, Inc.
|
|
Written by Tom Rix, Redhat.
|
|
|
|
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|
|
|
#ifndef LIBXCOFF_H
|
|
#define LIBXCOFF_H
|
|
|
|
/* This is the backend information kept for XCOFF files. This
|
|
structure is constant for a particular backend. The first element
|
|
is the COFF backend data structure, so that XCOFF targets can use
|
|
the generic COFF code. */
|
|
|
|
struct xcoff_backend_data_rec
|
|
{
|
|
/* COFF backend information. */
|
|
bfd_coff_backend_data coff;
|
|
|
|
/* Magic number. */
|
|
unsigned short _xcoff_magic_number;
|
|
|
|
/* Architecture and machine for coff_set_arch_mach_hook. */
|
|
enum bfd_architecture _xcoff_architecture;
|
|
long _xcoff_machine;
|
|
|
|
/* Function pointers to xcoff specific swap routines. */
|
|
void (* _xcoff_swap_ldhdr_in)
|
|
PARAMS ((bfd *, const PTR, struct internal_ldhdr *));
|
|
void (* _xcoff_swap_ldhdr_out)
|
|
PARAMS ((bfd *, const struct internal_ldhdr *, PTR));
|
|
void (* _xcoff_swap_ldsym_in)
|
|
PARAMS ((bfd *, const PTR, struct internal_ldsym *));
|
|
void (* _xcoff_swap_ldsym_out)
|
|
PARAMS ((bfd *, const struct internal_ldsym *, PTR));
|
|
void (* _xcoff_swap_ldrel_in)
|
|
PARAMS ((bfd *, const PTR, struct internal_ldrel *));
|
|
void (* _xcoff_swap_ldrel_out)
|
|
PARAMS ((bfd *, const struct internal_ldrel *, PTR));
|
|
|
|
/* Size of the external struct. */
|
|
unsigned int _xcoff_ldhdrsz;
|
|
unsigned int _xcoff_ldsymsz;
|
|
unsigned int _xcoff_ldrelsz;
|
|
|
|
/* Size an entry in a descriptor section. */
|
|
unsigned int _xcoff_function_descriptor_size;
|
|
|
|
/* Size of the small aout file header. */
|
|
unsigned int _xcoff_small_aout_header_size;
|
|
|
|
/* Loader version
|
|
1 : XCOFF32
|
|
2 : XCOFF64. */
|
|
unsigned long _xcoff_ldhdr_version;
|
|
|
|
bfd_boolean (* _xcoff_put_symbol_name)
|
|
PARAMS ((bfd *, struct bfd_strtab_hash *, struct internal_syment *,
|
|
const char *));
|
|
|
|
bfd_boolean (* _xcoff_put_ldsymbol_name)
|
|
PARAMS ((bfd *, struct xcoff_loader_info *, struct internal_ldsym *,
|
|
const char *));
|
|
|
|
reloc_howto_type *_xcoff_dynamic_reloc;
|
|
|
|
asection * (* _xcoff_create_csect_from_smclas)
|
|
PARAMS ((bfd *, union internal_auxent *, const char *));
|
|
|
|
/* Line number and relocation overflow.
|
|
XCOFF32 overflows to another section when the line number or the
|
|
relocation count exceeds 0xffff. XCOFF64 does not overflow. */
|
|
bfd_boolean (*_xcoff_is_lineno_count_overflow)
|
|
PARAMS ((bfd *, bfd_vma));
|
|
bfd_boolean (*_xcoff_is_reloc_count_overflow)
|
|
PARAMS ((bfd *, bfd_vma));
|
|
|
|
/* Loader section symbol and relocation table offset
|
|
XCOFF32 is after the .loader header
|
|
XCOFF64 is offset in .loader header. */
|
|
bfd_vma (*_xcoff_loader_symbol_offset)
|
|
PARAMS ((bfd *, struct internal_ldhdr *));
|
|
bfd_vma (*_xcoff_loader_reloc_offset)
|
|
PARAMS ((bfd *, struct internal_ldhdr *));
|
|
|
|
/* Global linkage. The first word of global linkage code must be be
|
|
modified by filling in the correct TOC offset. */
|
|
unsigned long *_xcoff_glink_code;
|
|
|
|
/* Size of the global link code in bytes of the xcoff_glink_code table. */
|
|
unsigned long _xcoff_glink_size;
|
|
|
|
/* rtinit. */
|
|
unsigned int _xcoff_rtinit_size;
|
|
bfd_boolean (*_xcoff_generate_rtinit)
|
|
PARAMS ((bfd *, const char *, const char *, bfd_boolean));
|
|
};
|
|
|
|
/* Look up an entry in an XCOFF link hash table. */
|
|
#define xcoff_link_hash_lookup(table, string, create, copy, follow) \
|
|
((struct xcoff_link_hash_entry *) \
|
|
bfd_link_hash_lookup (&(table)->root, (string), (create), (copy),\
|
|
(follow)))
|
|
|
|
/* Traverse an XCOFF link hash table. */
|
|
#define xcoff_link_hash_traverse(table, func, info) \
|
|
(bfd_link_hash_traverse \
|
|
(&(table)->root, \
|
|
(bfd_boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
|
|
(info)))
|
|
|
|
/* Get the XCOFF link hash table from the info structure. This is
|
|
just a cast. */
|
|
#define xcoff_hash_table(p) ((struct xcoff_link_hash_table *) ((p)->hash))
|
|
|
|
|
|
#define xcoff_backend(abfd) \
|
|
((struct xcoff_backend_data_rec *) (abfd)->xvec->backend_data)
|
|
|
|
#define bfd_xcoff_magic_number(a) ((xcoff_backend(a)->_xcoff_magic_number))
|
|
#define bfd_xcoff_architecture(a) ((xcoff_backend(a)->_xcoff_architecture))
|
|
#define bfd_xcoff_machine(a) ((xcoff_backend(a)->_xcoff_machine))
|
|
|
|
#define bfd_xcoff_swap_ldhdr_in(a, b, c) \
|
|
((xcoff_backend(a)->_xcoff_swap_ldhdr_in) ((a), (b), (c)))
|
|
|
|
#define bfd_xcoff_swap_ldhdr_out(a, b, c) \
|
|
((xcoff_backend(a)->_xcoff_swap_ldhdr_out) ((a), (b), (c)))
|
|
|
|
#define bfd_xcoff_swap_ldsym_in(a, b, c) \
|
|
((xcoff_backend(a)->_xcoff_swap_ldsym_in) ((a), (b), (c)))
|
|
|
|
#define bfd_xcoff_swap_ldsym_out(a, b, c) \
|
|
((xcoff_backend(a)->_xcoff_swap_ldsym_out) ((a), (b), (c)))
|
|
|
|
#define bfd_xcoff_swap_ldrel_in(a, b, c) \
|
|
((xcoff_backend(a)->_xcoff_swap_ldrel_in) ((a), (b), (c)))
|
|
|
|
#define bfd_xcoff_swap_ldrel_out(a, b, c) \
|
|
((xcoff_backend(a)->_xcoff_swap_ldrel_out) ((a), (b), (c)))
|
|
|
|
#define bfd_xcoff_ldhdrsz(a) ((xcoff_backend(a)->_xcoff_ldhdrsz))
|
|
#define bfd_xcoff_ldsymsz(a) ((xcoff_backend(a)->_xcoff_ldsymsz))
|
|
#define bfd_xcoff_ldrelsz(a) ((xcoff_backend(a)->_xcoff_ldrelsz))
|
|
#define bfd_xcoff_function_descriptor_size(a) \
|
|
((xcoff_backend(a)->_xcoff_function_descriptor_size))
|
|
#define bfd_xcoff_small_aout_header_size(a) \
|
|
((xcoff_backend(a)->_xcoff_small_aout_header_size))
|
|
|
|
#define bfd_xcoff_ldhdr_version(a) ((xcoff_backend(a)->_xcoff_ldhdr_version))
|
|
|
|
#define bfd_xcoff_put_symbol_name(a, b, c, d) \
|
|
((xcoff_backend(a)->_xcoff_put_symbol_name) ((a), (b), (c), (d)))
|
|
|
|
#define bfd_xcoff_put_ldsymbol_name(a, b, c, d) \
|
|
((xcoff_backend(a)->_xcoff_put_ldsymbol_name) ((a), (b), (c), (d)))
|
|
|
|
/* Get the XCOFF hash table entries for a BFD. */
|
|
#define obj_xcoff_sym_hashes(bfd) \
|
|
((struct xcoff_link_hash_entry **) obj_coff_sym_hashes (bfd))
|
|
|
|
#define bfd_xcoff_dynamic_reloc_howto(a) \
|
|
((xcoff_backend(a)->_xcoff_dynamic_reloc))
|
|
|
|
#define bfd_xcoff_create_csect_from_smclas(a, b, c) \
|
|
((xcoff_backend(a)->_xcoff_create_csect_from_smclas((a), (b), (c))))
|
|
|
|
#define bfd_xcoff_is_lineno_count_overflow(a, b) \
|
|
((xcoff_backend(a)->_xcoff_is_lineno_count_overflow((a), (b))))
|
|
|
|
#define bfd_xcoff_is_reloc_count_overflow(a, b) \
|
|
((xcoff_backend(a)->_xcoff_is_reloc_count_overflow((a), (b))))
|
|
|
|
#define bfd_xcoff_loader_symbol_offset(a, b) \
|
|
((xcoff_backend(a)->_xcoff_loader_symbol_offset((a), (b))))
|
|
|
|
#define bfd_xcoff_loader_reloc_offset(a, b) \
|
|
((xcoff_backend(a)->_xcoff_loader_reloc_offset((a), (b))))
|
|
|
|
#define bfd_xcoff_glink_code(a, b) ((xcoff_backend(a)->_xcoff_glink_code[(b)]))
|
|
#define bfd_xcoff_glink_code_size(a) ((xcoff_backend(a)->_xcoff_glink_size))
|
|
|
|
/* Check for the magic number U803XTOCMAGIC or U64_TOCMAGIC for 64 bit
|
|
targets. */
|
|
#define bfd_xcoff_is_xcoff64(a) \
|
|
( (0x01EF == (bfd_xcoff_magic_number(a))) \
|
|
|| (0x01F7 == (bfd_xcoff_magic_number(a))))
|
|
|
|
/* Check for the magic number U802TOMAGIC for 32 bit targets. */
|
|
#define bfd_xcoff_is_xcoff32(a) (0x01DF == (bfd_xcoff_magic_number(a)))
|
|
|
|
#define bfd_xcoff_rtinit_size(a) ((xcoff_backend(a)->_xcoff_rtinit_size))
|
|
#define bfd_xcoff_generate_rtinit(a, b, c, d) ((xcoff_backend(a)->_xcoff_generate_rtinit ((a), (b), (c), (d))))
|
|
|
|
/* Accessor macros for tdata. */
|
|
#define bfd_xcoff_text_align_power(a) ((xcoff_data (a)->text_align_power))
|
|
#define bfd_xcoff_data_align_power(a) ((xcoff_data (a)->data_align_power))
|
|
|
|
/* xcoff*_ppc_relocate_section macros */
|
|
#define XCOFF_MAX_CALCULATE_RELOCATION (0x1c)
|
|
#define XCOFF_MAX_COMPLAIN_OVERFLOW (4)
|
|
/* N_ONES produces N one bits, without overflowing machine arithmetic. */
|
|
#ifdef N_ONES
|
|
#undef N_ONES
|
|
#endif
|
|
#define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1)
|
|
|
|
#define XCOFF_RELOC_FUNCTION_ARGS \
|
|
bfd *, asection *, bfd *, struct internal_reloc *, \
|
|
struct internal_syment *, struct reloc_howto_struct *, bfd_vma, bfd_vma, \
|
|
bfd_vma *relocation, bfd_byte *contents
|
|
|
|
#define XCOFF_COMPLAIN_FUNCTION_ARGS \
|
|
bfd *, bfd_vma, bfd_vma, struct reloc_howto_struct *howto
|
|
|
|
extern bfd_boolean (*xcoff_calculate_relocation[XCOFF_MAX_CALCULATE_RELOCATION])
|
|
PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
|
|
extern bfd_boolean (*xcoff_complain_overflow[XCOFF_MAX_COMPLAIN_OVERFLOW])
|
|
PARAMS ((XCOFF_COMPLAIN_FUNCTION_ARGS));
|
|
|
|
/* Relocation functions */
|
|
bfd_boolean xcoff_reloc_type_noop PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
|
|
bfd_boolean xcoff_reloc_type_fail PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
|
|
bfd_boolean xcoff_reloc_type_pos PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
|
|
bfd_boolean xcoff_reloc_type_neg PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
|
|
bfd_boolean xcoff_reloc_type_rel PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
|
|
bfd_boolean xcoff_reloc_type_toc PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
|
|
bfd_boolean xcoff_reloc_type_ba PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
|
|
bfd_boolean xcoff_reloc_type_crel PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
|
|
|
|
#endif /* LIBXCOFF_H */
|