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Diffstat (limited to 'binutils-2.25/bfd/libxcoff.h')
| -rw-r--r-- | binutils-2.25/bfd/libxcoff.h | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/binutils-2.25/bfd/libxcoff.h b/binutils-2.25/bfd/libxcoff.h new file mode 100644 index 00000000..3f665247 --- /dev/null +++ b/binutils-2.25/bfd/libxcoff.h @@ -0,0 +1,260 @@ +/* BFD XCOFF object file private structure. + Copyright 2001, 2002, 2005, 2007, 2009 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; + + bfd_boolean (* _xcoff_put_symbol_name) + (bfd *, struct bfd_strtab_hash *, struct internal_syment *, + const char *); + + bfd_boolean (* _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. */ + bfd_boolean (*_xcoff_is_lineno_count_overflow) (bfd *, bfd_vma); + bfd_boolean (*_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. */ + 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) + (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 (*) (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) \ + ((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]) + (XCOFF_RELOC_FUNCTION_ARGS); +extern bfd_boolean (*xcoff_complain_overflow[XCOFF_MAX_COMPLAIN_OVERFLOW]) + (XCOFF_COMPLAIN_FUNCTION_ARGS); + +#define XCOFF_NO_LONG_SECTION_NAMES (FALSE), bfd_coff_set_long_section_names_disallowed + +/* Relocation functions */ +bfd_boolean xcoff_reloc_type_noop (XCOFF_RELOC_FUNCTION_ARGS); +bfd_boolean xcoff_reloc_type_fail (XCOFF_RELOC_FUNCTION_ARGS); +bfd_boolean xcoff_reloc_type_pos (XCOFF_RELOC_FUNCTION_ARGS); +bfd_boolean xcoff_reloc_type_neg (XCOFF_RELOC_FUNCTION_ARGS); +bfd_boolean xcoff_reloc_type_rel (XCOFF_RELOC_FUNCTION_ARGS); +bfd_boolean xcoff_reloc_type_toc (XCOFF_RELOC_FUNCTION_ARGS); +bfd_boolean xcoff_reloc_type_ba (XCOFF_RELOC_FUNCTION_ARGS); +bfd_boolean xcoff_reloc_type_crel (XCOFF_RELOC_FUNCTION_ARGS); + +/* 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 *name; + + /* True if size must be prepended. */ + bfd_boolean 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 8 + +/* The dwarf sections array. */ +extern const struct xcoff_dwsect_name + xcoff_dwsect_names[XCOFF_DWSECT_NBR_NAMES]; + +#endif /* LIBXCOFF_H */ |