From fede875c5971ff933b71ac578c39b2147301d8de Mon Sep 17 00:00:00 2001 From: Tom Rix Date: Thu, 24 May 2001 20:59:23 +0000 Subject: Support for xcoff64 --- bfd/libxcoff.h | 266 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 266 insertions(+) create mode 100644 bfd/libxcoff.h (limited to 'bfd/libxcoff.h') diff --git a/bfd/libxcoff.h b/bfd/libxcoff.h new file mode 100644 index 0000000000..a755665f04 --- /dev/null +++ b/bfd/libxcoff.h @@ -0,0 +1,266 @@ +/* BFD XCOFF object file private structure. + Copyright (C) 2001 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. Must be the first field. + * This is where the std coff swap table goes + */ + 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 *, PTR, struct internal_ldhdr *); + void (* _xcoff_swap_ldhdr_out)(bfd *, struct internal_ldhdr *, PTR); + void (* _xcoff_swap_ldsym_in)(bfd *, PTR, struct internal_ldsym *); + void (* _xcoff_swap_ldsym_out)(bfd *, struct internal_ldsym *, PTR); + void (* _xcoff_swap_ldrel_in)(bfd *, PTR, struct internal_ldrel *); + void (* _xcoff_swap_ldrel_out)(bfd *, struct internal_ldrel *, PTR); + + /* size of the 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; + + /* + * version + * loader version + * 1 : xcoff32 + * 2 : xcoff64 + */ + unsigned long _xcoff_ldhdr_version; + + boolean (* _xcoff_put_symbol_name)(bfd *, struct bfd_strtab_hash *, + struct internal_syment *, + const char *); + + 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_no and reloc overflow + * 32 overflows to another section when the line_no or reloc count go + * over 0xffff. 64 does not overflow. + */ + boolean (*_xcoff_is_lineno_count_overflow)(bfd *, bfd_vma); + boolean (*_xcoff_is_reloc_count_overflow)(bfd *, bfd_vma); + + /* + * .loader symbol table offset + * 32 is after the .loader header + * 64 is offset in .loader header + * + * Similar for the reloc table + */ + 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; + +}; + +/* 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, \ + (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)) + +#define bfd_xcoff_is_xcoff64(a) (0x01EF == (bfd_xcoff_magic_number(a))) +#define bfd_xcoff_is_xcoff32(a) (0x01DF == (bfd_xcoff_magic_number(a))) + +/* Functions in xcofflink.c. */ + +extern long _bfd_xcoff_get_dynamic_symtab_upper_bound PARAMS ((bfd *)); +extern long _bfd_xcoff_canonicalize_dynamic_symtab + PARAMS ((bfd *, asymbol **)); +extern long _bfd_xcoff_get_dynamic_reloc_upper_bound PARAMS ((bfd *)); +extern long _bfd_xcoff_canonicalize_dynamic_reloc + PARAMS ((bfd *, arelent **, asymbol **)); +extern struct bfd_link_hash_table *_bfd_xcoff_bfd_link_hash_table_create + PARAMS ((bfd *)); +extern boolean _bfd_xcoff_bfd_link_add_symbols + PARAMS ((bfd *, struct bfd_link_info *)); +extern boolean _bfd_xcoff_bfd_final_link + PARAMS ((bfd *, struct bfd_link_info *)); +extern boolean _bfd_xcoff_slurp_symbol_table + PARAMS ((bfd *)); +extern long _bfd_xcoff_get_symbol_table + PARAMS ((bfd *, asymbol **)); +extern asymbol *_bfd_xcoff_make_empty_symbol + PARAMS ((bfd *)); +extern long _bfd_xcoff_get_symbol_table_upper_bound + PARAMS ((bfd *)); +extern void _bfd_xcoff_print_symbol + PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type)); +extern void _bfd_xcoff_get_symbol_info + PARAMS ((bfd *, asymbol *, symbol_info *)); +extern long _bfd_xcoff_canonicalize_reloc + PARAMS((bfd *, sec_ptr, arelent **, asymbol **)); +extern reloc_howto_type *_bfd_xcoff_rtype_to_howto + PARAMS ((bfd *, asection *, struct internal_reloc *, + struct coff_link_hash_entry *, struct internal_syment *, + bfd_vma *)); +extern boolean _bfd_xcoff_set_section_contents + PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type)); +boolean _bfd_xcoff_write_object_contents PARAMS ((bfd *)); + + +/* XCOFF support routines for the linker. */ + +extern boolean bfd_xcoff_link_record_set + PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, + bfd_size_type)); +extern boolean bfd_xcoff_import_symbol + PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, + bfd_vma, const char *, const char *, const char *)); +extern boolean bfd_xcoff_export_symbol + PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, + boolean)); +extern boolean bfd_xcoff_link_count_reloc + PARAMS ((bfd *, struct bfd_link_info *, const char *)); +extern boolean bfd_xcoff_record_link_assignment + PARAMS ((bfd *, struct bfd_link_info *, const char *)); +extern boolean bfd_xcoff_size_dynamic_sections + PARAMS ((bfd *, struct bfd_link_info *, const char *, const char *, + unsigned long, unsigned long, unsigned long, boolean, + int, boolean, boolean, struct sec **)); +extern boolean xcoff_slurp_reloc_table + PARAMS ((bfd *, asection *, asymbol **)); + +#endif /* LIBXCOFF_H */ -- cgit v1.2.1