/* BFD XCOFF object file private structure.
- Copyright (C) 2001 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2002 Free Software Foundation, Inc.
Written by Tom Rix, Redhat.
-This file is part of BFD, the Binary File Descriptor library.
+ 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 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.
+ 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. */
+ 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
struct xcoff_backend_data_rec
{
- /*
- * COFF backend information. Must be the first field.
- * This is where the std coff swap table goes
- */
+ /* COFF backend information. */
bfd_coff_backend_data coff;
- /* Magic number */
- unsigned short _xcoff_magic_number;
+ /* Magic number. */
+ unsigned short _xcoff_magic_number;
- /* Architecture and machine for coff_set_arch_mach_hook */
+ /* Architecture and machine for coff_set_arch_mach_hook. */
enum bfd_architecture _xcoff_architecture;
long _xcoff_machine;
- /* function pointers to xcoff specific swap routines */
+ /* Function pointers to xcoff specific swap routines. */
void (* _xcoff_swap_ldhdr_in)(bfd *, const PTR, struct internal_ldhdr *);
void (* _xcoff_swap_ldhdr_out)(bfd *, const struct internal_ldhdr *, PTR);
void (* _xcoff_swap_ldsym_in)(bfd *, const PTR, struct internal_ldsym *);
void (* _xcoff_swap_ldrel_in)(bfd *, const PTR, struct internal_ldrel *);
void (* _xcoff_swap_ldrel_out)(bfd *, const struct internal_ldrel *, PTR);
- /* size of the the external struct */
- unsigned int _xcoff_ldhdrsz;
+ /* Size of the external struct. */
+ unsigned int _xcoff_ldhdrsz;
unsigned int _xcoff_ldsymsz;
unsigned int _xcoff_ldrelsz;
- /* size an entry in a descriptor section */
+ /* Size an entry in a descriptor section. */
unsigned int _xcoff_function_descriptor_size;
- /* size of the small aout file header */
+ /* Size of the small aout file header. */
unsigned int _xcoff_small_aout_header_size;
- /*
- * version
- * loader version
- * 1 : xcoff32
- * 2 : xcoff64
- */
+ /* 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_symbol_name)
+ PARAMS ((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 *);
+ 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) (bfd *, union internal_auxent *, const char *);
+ asection * (* _xcoff_create_csect_from_smclas)
+ PARAMS ((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.
- */
+ /* Line number and relocation overflow.
+ XCOFF32 overflows to another section when the line number or the
+ relocation count exceeds 0xffff. XCOFF64 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
- */
+ /* 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.
- */
+
+ /* 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
- */
+
+ /* 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;
+ boolean (*_xcoff_generate_rtinit)(bfd *, const char *, const char *,
+ 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, \
/* 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 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)))
+/* 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)))
-/* 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 *, unsigned int));
-extern boolean bfd_xcoff_export_symbol
- PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *));
-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 **));
+#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 boolean (*xcoff_calculate_relocation[XCOFF_MAX_CALCULATE_RELOCATION])
+ (XCOFF_RELOC_FUNCTION_ARGS);
+extern boolean (*xcoff_complain_overflow[XCOFF_MAX_COMPLAIN_OVERFLOW])
+ (XCOFF_COMPLAIN_FUNCTION_ARGS);
+
+/* Relocation functions */
+boolean xcoff_reloc_type_noop PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
+boolean xcoff_reloc_type_fail PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
+boolean xcoff_reloc_type_pos PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
+boolean xcoff_reloc_type_neg PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
+boolean xcoff_reloc_type_rel PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
+boolean xcoff_reloc_type_toc PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
+boolean xcoff_reloc_type_ba PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
+boolean xcoff_reloc_type_crel PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
#endif /* LIBXCOFF_H */
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