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- /* BFD XCOFF object file private structure.
- Copyright (C) 2001-2022 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
- MA 02110-1301, 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) (bfd *, const void *, struct internal_ldhdr *);
- void (* _xcoff_swap_ldhdr_out)(bfd *, const struct internal_ldhdr *, void *);
- void (* _xcoff_swap_ldsym_in) (bfd *, const void *, struct internal_ldsym *);
- void (* _xcoff_swap_ldsym_out)(bfd *, const struct internal_ldsym *, void *);
- void (* _xcoff_swap_ldrel_in) (bfd *, const void *, struct internal_ldrel *);
- void (* _xcoff_swap_ldrel_out)(bfd *, const struct internal_ldrel *, void *);
- /* 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;
- bool (* _xcoff_put_symbol_name)
- (struct bfd_link_info *, struct bfd_strtab_hash *,
- struct internal_syment *, const char *);
- bool (* _xcoff_put_ldsymbol_name)
- (bfd *, struct xcoff_loader_info *, struct internal_ldsym *,
- const char *);
- reloc_howto_type *_xcoff_dynamic_reloc;
- asection * (* _xcoff_create_csect_from_smclas)
- (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. */
- bool (*_xcoff_is_lineno_count_overflow) (bfd *, bfd_vma);
- bool (*_xcoff_is_reloc_count_overflow) (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) (bfd *, struct internal_ldhdr *);
- bfd_vma (*_xcoff_loader_reloc_offset) (bfd *, struct internal_ldhdr *);
- /* Global linkage. The first word of global linkage code must be be
- modified by filling in the correct TOC offset. */
- const 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;
- bool (*_xcoff_generate_rtinit)
- (bfd *, const char *, const char *, bool);
- };
- /* 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, \
- (bool (*) (struct bfd_link_hash_entry *, void *)) (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, e) \
- ((xcoff_backend (a)->_xcoff_put_symbol_name) ((b), (c), (d), (e)))
- #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 (0x32)
- #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)
- typedef bool xcoff_reloc_function (bfd *, asection *, bfd *,
- struct internal_reloc *,
- struct internal_syment *,
- struct reloc_howto_struct *,
- bfd_vma, bfd_vma,
- bfd_vma *, bfd_byte *);
- typedef bool xcoff_complain_function (bfd *, bfd_vma, bfd_vma,
- struct reloc_howto_struct *);
- extern xcoff_reloc_function *const xcoff_calculate_relocation[];
- extern xcoff_complain_function *const xcoff_complain_overflow[];
- #define XCOFF_NO_LONG_SECTION_NAMES (false), bfd_coff_set_long_section_names_disallowed
- /* Relocation functions */
- extern xcoff_reloc_function xcoff_reloc_type_noop;
- extern xcoff_reloc_function xcoff_reloc_type_fail;
- extern xcoff_reloc_function xcoff_reloc_type_pos;
- extern xcoff_reloc_function xcoff_reloc_type_neg;
- extern xcoff_reloc_function xcoff_reloc_type_rel;
- extern xcoff_reloc_function xcoff_reloc_type_toc;
- extern xcoff_reloc_function xcoff_reloc_type_ba;
- extern xcoff_reloc_function xcoff_reloc_type_crel;
- extern xcoff_reloc_function xcoff_reloc_type_tls;
- /* Structure to describe dwarf sections.
- Useful to convert from XCOFF section name to flag and vice-versa.
- Also mark if section has a length field at the beginning. */
- struct xcoff_dwsect_name {
- /* A XCOFF dwarf section is identified by its name. */
- unsigned int flag;
- /* Corresponding XCOFF section name. */
- const char *xcoff_name;
- /* Corresponding DWARF section name. */
- const char *dwarf_name;
- /* True if size must be prepended. */
- bool def_size;
- };
- /* Number of entries in the array. The number is known and public so that user
- can 'extend' this array by index. */
- #define XCOFF_DWSECT_NBR_NAMES 11
- /* The dwarf sections array. */
- extern const struct xcoff_dwsect_name
- xcoff_dwsect_names[XCOFF_DWSECT_NBR_NAMES];
- #endif /* LIBXCOFF_H */
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