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Diffstat (limited to 'include/coff/xcoff.h')
| -rw-r--r-- | include/coff/xcoff.h | 639 |
1 files changed, 0 insertions, 639 deletions
diff --git a/include/coff/xcoff.h b/include/coff/xcoff.h deleted file mode 100644 index 0bb9d6c1e..000000000 --- a/include/coff/xcoff.h +++ /dev/null @@ -1,639 +0,0 @@ -/* Internal format of XCOFF object file data structures for BFD. - - Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001 - Free Software Foundation, Inc. - Written by Ian Lance Taylor <ian@cygnus.com>, Cygnus Support. - - 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 _INTERNAL_XCOFF_H -#define _INTERNAL_XCOFF_H - -/* Linker */ - -/* Names of "special" sections. */ -#define _TEXT ".text" -#define _DATA ".data" -#define _BSS ".bss" -#define _PAD ".pad" -#define _LOADER ".loader" -#define _EXCEPT ".except" -#define _TYPCHK ".typchk" - -/* XCOFF uses a special .loader section with type STYP_LOADER. */ -#define STYP_LOADER 0x1000 - -/* XCOFF uses a special .debug section with type STYP_DEBUG. */ -#define STYP_DEBUG 0x2000 - -/* XCOFF handles line number or relocation overflow by creating - another section header with STYP_OVRFLO set. */ -#define STYP_OVRFLO 0x8000 - -/* Specifies an exception section. A section of this type provides - information to identify the reason that a trap or ececptin occured within - and executable object program */ -#define STYP_EXCEPT 0x0100 - -/* Specifies a type check section. A section of this type contains parameter - argument type check strings used by the AIX binder. */ -#define STYP_TYPCHK 0x4000 - -#define RS6K_AOUTHDR_OMAGIC 0x0107 /* old: text & data writeable */ -#define RS6K_AOUTHDR_NMAGIC 0x0108 /* new: text r/o, data r/w */ -#define RS6K_AOUTHDR_ZMAGIC 0x010B /* paged: text r/o, both page-aligned */ - -/* XCOFF relocation types. - The relocations are described in the function - xcoff[64]_ppc_relocate_section in coff64-rs6000.c and coff-rs6000.c */ - -#define R_POS (0x00) -#define R_NEG (0x01) -#define R_REL (0x02) -#define R_TOC (0x03) -#define R_RTB (0x04) -#define R_GL (0x05) -#define R_TCL (0x06) -#define R_BA (0x08) -#define R_BR (0x0a) -#define R_RL (0x0c) -#define R_RLA (0x0d) -#define R_REF (0x0f) -#define R_TRL (0x12) -#define R_TRLA (0x13) -#define R_RRTBI (0x14) -#define R_RRTBA (0x15) -#define R_CAI (0x16) -#define R_CREL (0x17) -#define R_RBA (0x18) -#define R_RBAC (0x19) -#define R_RBR (0x1a) -#define R_RBRC (0x1b) - -/* Storage class #defines, from /usr/include/storclass.h that are not already - defined in internal.h */ - -/* Comment string in .info section */ -#define C_INFO 110 - -/* Auxillary Symbol Entries */ - -/* x_smtyp values: */ -#define SMTYP_ALIGN(x) ((x) >> 3) /* log2 of alignment */ -#define SMTYP_SMTYP(x) ((x) & 0x7) /* symbol type */ -/* Symbol type values: */ -#define XTY_ER 0 /* External reference */ -#define XTY_SD 1 /* Csect definition */ -#define XTY_LD 2 /* Label definition */ -#define XTY_CM 3 /* .BSS */ -#define XTY_EM 4 /* Error message */ -#define XTY_US 5 /* "Reserved for internal use" */ - -/* x_smclas values: */ -#define XMC_PR 0 /* Read-only program code */ -#define XMC_RO 1 /* Read-only constant */ -#define XMC_DB 2 /* Read-only debug dictionary table */ -#define XMC_TC 3 /* Read-write general TOC entry */ -#define XMC_UA 4 /* Read-write unclassified */ -#define XMC_RW 5 /* Read-write data */ -#define XMC_GL 6 /* Read-only global linkage */ -#define XMC_XO 7 /* Read-only extended operation */ -#define XMC_SV 8 /* Read-only supervisor call */ -#define XMC_BS 9 /* Read-write BSS */ -#define XMC_DS 10 /* Read-write descriptor csect */ -#define XMC_UC 11 /* Read-write unnamed Fortran common */ -#define XMC_TI 12 /* Read-only traceback index csect */ -#define XMC_TB 13 /* Read-only traceback table csect */ -/* 14 ??? */ -#define XMC_TC0 15 /* Read-write TOC anchor */ -#define XMC_TD 16 /* Read-write data in TOC */ -#define XMC_SV64 17 /* Read-only 64 bit supervisor call */ -#define XMC_SV3264 18 /* Read-only 32 or 64 bit supervisor call */ - -/* The ldhdr structure. This appears at the start of the .loader - section. */ - -struct internal_ldhdr -{ - /* The version number: - 1 : 32 bit - 2 : 64 bit */ - unsigned long l_version; - - /* The number of symbol table entries. */ - bfd_size_type l_nsyms; - - /* The number of relocation table entries. */ - bfd_size_type l_nreloc; - - /* The length of the import file string table. */ - bfd_size_type l_istlen; - - /* The number of import files. */ - bfd_size_type l_nimpid; - - /* The offset from the start of the .loader section to the first - entry in the import file table. */ - bfd_size_type l_impoff; - - /* The length of the string table. */ - bfd_size_type l_stlen; - - /* The offset from the start of the .loader section to the first - entry in the string table. */ - bfd_size_type l_stoff; - - /* The offset to start of the symbol table, only in XCOFF64 */ - bfd_vma l_symoff; - - /* The offset to the start of the relocation table, only in XCOFF64 */ - bfd_vma l_rldoff; -}; - -/* The ldsym structure. This is used to represent a symbol in the - .loader section. */ - -struct internal_ldsym -{ - union - { - /* The symbol name if <= SYMNMLEN characters. */ - char _l_name[SYMNMLEN]; - struct - { - /* Zero if the symbol name is more than SYMNMLEN characters. */ - long _l_zeroes; - - /* The offset in the string table if the symbol name is more - than SYMNMLEN characters. */ - long _l_offset; - } - _l_l; - } - _l; - - /* The symbol value. */ - bfd_vma l_value; - - /* The symbol section number. */ - short l_scnum; - - /* The symbol type and flags. */ - char l_smtype; - - /* The symbol storage class. */ - char l_smclas; - - /* The import file ID. */ - bfd_size_type l_ifile; - - /* Offset to the parameter type check string. */ - bfd_size_type l_parm; -}; - -/* These flags are for the l_smtype field (the lower three bits are an - XTY_* value). */ - -/* Imported symbol. */ -#define L_IMPORT (0x40) -/* Entry point. */ -#define L_ENTRY (0x20) -/* Exported symbol. */ -#define L_EXPORT (0x10) - -/* The ldrel structure. This is used to represent a reloc in the - .loader section. */ - -struct internal_ldrel -{ - /* The reloc address. */ - bfd_vma l_vaddr; - - /* The symbol table index in the .loader section symbol table. */ - bfd_size_type l_symndx; - - /* The relocation type and size. */ - short l_rtype; - - /* The section number this relocation applies to. */ - short l_rsecnm; -}; - -/* An entry in the XCOFF linker hash table. */ -struct xcoff_link_hash_entry -{ - struct bfd_link_hash_entry root; - - /* Symbol index in output file. Set to -1 initially. Set to -2 if - there is a reloc against this symbol. */ - long indx; - - /* If we have created a TOC entry for this symbol, this is the .tc - section which holds it. */ - asection *toc_section; - - union - { - /* If we have created a TOC entry (the XCOFF_SET_TOC flag is - set), this is the offset in toc_section. */ - bfd_vma toc_offset; - - /* If the TOC entry comes from an input file, this is set to the - symbol index of the C_HIDEXT XMC_TC or XMC_TD symbol. */ - long toc_indx; - } - u; - - /* If this symbol is a function entry point which is called, this - field holds a pointer to the function descriptor. If this symbol - is a function descriptor, this field holds a pointer to the - function entry point. */ - struct xcoff_link_hash_entry *descriptor; - - /* The .loader symbol table entry, if there is one. */ - struct internal_ldsym *ldsym; - - /* If XCOFF_BUILT_LDSYM is set, this is the .loader symbol table - index. If XCOFF_BUILD_LDSYM is clear, and XCOFF_IMPORT is set, - this is the l_ifile value. */ - long ldindx; - - /* Some linker flags. */ - unsigned long flags; - - /* The storage mapping class. */ - unsigned char smclas; -}; - -/* Flags for xcoff_link_hash_entry. */ - -/* Symbol is referenced by a regular object. */ -#define XCOFF_REF_REGULAR 0x00000001 -/* Symbol is defined by a regular object. */ -#define XCOFF_DEF_REGULAR 0x00000002 -/* Symbol is defined by a dynamic object. */ -#define XCOFF_DEF_DYNAMIC 0x00000004 -/* Symbol is used in a reloc being copied into the .loader section. */ -#define XCOFF_LDREL 0x00000008 -/* Symbol is the entry point. */ -#define XCOFF_ENTRY 0x00000010 -/* Symbol is called; this is, it appears in a R_BR reloc. */ -#define XCOFF_CALLED 0x00000020 -/* Symbol needs the TOC entry filled in. */ -#define XCOFF_SET_TOC 0x00000040 -/* Symbol is explicitly imported. */ -#define XCOFF_IMPORT 0x00000080 -/* Symbol is explicitly exported. */ -#define XCOFF_EXPORT 0x00000100 -/* Symbol has been processed by xcoff_build_ldsyms. */ -#define XCOFF_BUILT_LDSYM 0x00000200 -/* Symbol is mentioned by a section which was not garbage collected. */ -#define XCOFF_MARK 0x00000400 -/* Symbol size is recorded in size_list list from hash table. */ -#define XCOFF_HAS_SIZE 0x00000800 -/* Symbol is a function descriptor. */ -#define XCOFF_DESCRIPTOR 0x00001000 -/* Multiple definitions have been for the symbol. */ -#define XCOFF_MULTIPLY_DEFINED 0x00002000 -/* Symbol is the __rtinit symbol. */ -#define XCOFF_RTINIT 0x00004000 -/* Symbol is an imported 32 bit syscall. */ -#define XCOFF_SYSCALL32 0x00008000 -/* Symbol is an imported 64 bit syscall. */ -#define XCOFF_SYSCALL64 0x00010000 - -/* The XCOFF linker hash table. */ - -#define XCOFF_NUMBER_OF_SPECIAL_SECTIONS 6 -#define XCOFF_SPECIAL_SECTION_TEXT 0 -#define XCOFF_SPECIAL_SECTION_ETEXT 1 -#define XCOFF_SPECIAL_SECTION_DATA 2 -#define XCOFF_SPECIAL_SECTION_EDATA 3 -#define XCOFF_SPECIAL_SECTION_END 4 -#define XCOFF_SPECIAL_SECTION_END2 5 - -struct xcoff_link_hash_table -{ - struct bfd_link_hash_table root; - - /* The .debug string hash table. We need to compute this while - reading the input files, so that we know how large the .debug - section will be before we assign section positions. */ - struct bfd_strtab_hash *debug_strtab; - - /* The .debug section we will use for the final output. */ - asection *debug_section; - - /* The .loader section we will use for the final output. */ - asection *loader_section; - - /* A count of non TOC relative relocs which will need to be - allocated in the .loader section. */ - size_t ldrel_count; - - /* The .loader section header. */ - struct internal_ldhdr ldhdr; - - /* The .gl section we use to hold global linkage code. */ - asection *linkage_section; - - /* The .tc section we use to hold toc entries we build for global - linkage code. */ - asection *toc_section; - - /* The .ds section we use to hold function descriptors which we - create for exported symbols. */ - asection *descriptor_section; - - /* The list of import files. */ - struct xcoff_import_file *imports; - - /* Required alignment of sections within the output file. */ - unsigned long file_align; - - /* Whether the .text section must be read-only. */ - boolean textro; - - /* Whether garbage collection was done. */ - boolean gc; - - /* A linked list of symbols for which we have size information. */ - struct xcoff_link_size_list - { - struct xcoff_link_size_list *next; - struct xcoff_link_hash_entry *h; - bfd_size_type size; - } - *size_list; - - /* Magic sections: _text, _etext, _data, _edata, _end, end. */ - asection *special_sections[XCOFF_NUMBER_OF_SPECIAL_SECTIONS]; -}; - - -/* This structure is used to pass information through - xcoff_link_hash_traverse. */ - -struct xcoff_loader_info -{ - /* Set if a problem occurred. */ - boolean failed; - - /* Output BFD. */ - bfd *output_bfd; - - /* Link information structure. */ - struct bfd_link_info *info; - - /* Whether all defined symbols should be exported. */ - boolean export_defineds; - - /* Number of ldsym structures. */ - size_t ldsym_count; - - /* Size of string table. */ - size_t string_size; - - /* String table. */ - bfd_byte *strings; - - /* Allocated size of string table. */ - size_t string_alc; -}; - -/* In case we're on a 32-bit machine, construct a 64-bit "-1" value - from smaller values. Start with zero, widen, *then* decrement. */ -#define MINUS_ONE (((bfd_vma) 0) - 1) - -/* __rtinit, from /usr/include/rtinit.h. */ -struct __rtinit -{ - /* Pointer to runtime linker. - XXX: Is the parameter really void? */ - int (*rtl) PARAMS ((void)); - - /* Offset to array of init functions, 0 if none. */ - int init_offset; - - /* Offset to array of fini functions, 0 if none. */ - int fini_offset; - - /* Size of __RTINIT_DESCRIPTOR. This value should be used instead of - sizeof(__RTINIT_DESCRIPTOR). */ - int __rtinit_descriptor_size; -}; - -#define RTINIT_DESCRIPTOR_SIZE (12) - -struct __rtinit_descriptor -{ - /* Init/fini function. */ - int f; - - /* Offset, relative to the start of the __rtinit symbol, to name of the - function. */ - - int name_offset; - - /* Flags */ - unsigned char flags; -}; - -/* Archive */ - -#define XCOFFARMAG "<aiaff>\012" -#define XCOFFARMAGBIG "<bigaf>\012" -#define SXCOFFARMAG 8 - -/* The size of the ascii archive elements */ -#define XCOFFARMAG_ELEMENT_SIZE 12 -#define XCOFFARMAGBIG_ELEMENT_SIZE 20 - -/* This terminates an XCOFF archive member name. */ - -#define XCOFFARFMAG "`\012" -#define SXCOFFARFMAG 2 - -/* XCOFF archives start with this (printable) structure. */ - -struct xcoff_ar_file_hdr -{ - /* Magic string. */ - char magic[SXCOFFARMAG]; - - /* Offset of the member table (decimal ASCII string). */ - char memoff[XCOFFARMAG_ELEMENT_SIZE]; - - /* Offset of the global symbol table (decimal ASCII string). */ - char symoff[XCOFFARMAG_ELEMENT_SIZE]; - - /* Offset of the first member in the archive (decimal ASCII string). */ - char firstmemoff[XCOFFARMAG_ELEMENT_SIZE]; - - /* Offset of the last member in the archive (decimal ASCII string). */ - char lastmemoff[XCOFFARMAG_ELEMENT_SIZE]; - - /* Offset of the first member on the free list (decimal ASCII - string). */ - char freeoff[XCOFFARMAG_ELEMENT_SIZE]; -}; - -#define SIZEOF_AR_FILE_HDR (SXCOFFARMAG + 5 * XCOFFARMAG_ELEMENT_SIZE) - -/* This is the equivalent data structure for the big archive format. */ - -struct xcoff_ar_file_hdr_big -{ - /* Magic string. */ - char magic[SXCOFFARMAG]; - - /* Offset of the member table (decimal ASCII string). */ - char memoff[XCOFFARMAGBIG_ELEMENT_SIZE]; - - /* Offset of the global symbol table for 32-bit objects (decimal ASCII - string). */ - char symoff[XCOFFARMAGBIG_ELEMENT_SIZE]; - - /* Offset of the global symbol table for 64-bit objects (decimal ASCII - string). */ - char symoff64[XCOFFARMAGBIG_ELEMENT_SIZE]; - - /* Offset of the first member in the archive (decimal ASCII string). */ - char firstmemoff[XCOFFARMAGBIG_ELEMENT_SIZE]; - - /* Offset of the last member in the archive (decimal ASCII string). */ - char lastmemoff[XCOFFARMAGBIG_ELEMENT_SIZE]; - - /* Offset of the first member on the free list (decimal ASCII - string). */ - char freeoff[XCOFFARMAGBIG_ELEMENT_SIZE]; -}; - -#define SIZEOF_AR_FILE_HDR_BIG (SXCOFFARMAG + 6 * XCOFFARMAGBIG_ELEMENT_SIZE) - -/* Each XCOFF archive member starts with this (printable) structure. */ - -struct xcoff_ar_hdr -{ - /* File size not including the header (decimal ASCII string). */ - char size[XCOFFARMAG_ELEMENT_SIZE]; - - /* File offset of next archive member (decimal ASCII string). */ - char nextoff[XCOFFARMAG_ELEMENT_SIZE]; - - /* File offset of previous archive member (decimal ASCII string). */ - char prevoff[XCOFFARMAG_ELEMENT_SIZE]; - - /* File mtime (decimal ASCII string). */ - char date[12]; - - /* File UID (decimal ASCII string). */ - char uid[12]; - - /* File GID (decimal ASCII string). */ - char gid[12]; - - /* File mode (octal ASCII string). */ - char mode[12]; - - /* Length of file name (decimal ASCII string). */ - char namlen[4]; - - /* This structure is followed by the file name. The length of the - name is given in the namlen field. If the length of the name is - odd, the name is followed by a null byte. The name and optional - null byte are followed by XCOFFARFMAG, which is not included in - namlen. The contents of the archive member follow; the number of - bytes is given in the size field. */ -}; - -#define SIZEOF_AR_HDR (3 * XCOFFARMAG_ELEMENT_SIZE + 4 * 12 + 4) - -/* The equivalent for the big archive format. */ - -struct xcoff_ar_hdr_big -{ - /* File size not including the header (decimal ASCII string). */ - char size[XCOFFARMAGBIG_ELEMENT_SIZE]; - - /* File offset of next archive member (decimal ASCII string). */ - char nextoff[XCOFFARMAGBIG_ELEMENT_SIZE]; - - /* File offset of previous archive member (decimal ASCII string). */ - char prevoff[XCOFFARMAGBIG_ELEMENT_SIZE]; - - /* File mtime (decimal ASCII string). */ - char date[12]; - - /* File UID (decimal ASCII string). */ - char uid[12]; - - /* File GID (decimal ASCII string). */ - char gid[12]; - - /* File mode (octal ASCII string). */ - char mode[12]; - - /* Length of file name (decimal ASCII string). */ - char namlen[4]; - - /* This structure is followed by the file name. The length of the - name is given in the namlen field. If the length of the name is - odd, the name is followed by a null byte. The name and optional - null byte are followed by XCOFFARFMAG, which is not included in - namlen. The contents of the archive member follow; the number of - bytes is given in the size field. */ -}; - -#define SIZEOF_AR_HDR_BIG (3 * XCOFFARMAGBIG_ELEMENT_SIZE + 4 * 12 + 4) - -/* We often have to distinguish between the old and big file format. - Make it a bit cleaner. We can use `xcoff_ardata' here because the - `hdr' member has the same size and position in both formats. - <bigaf> is the default format, return true even when xcoff_ardata is - NULL. */ -#ifndef SMALL_ARCHIVE -/* Creates big archives by default */ -#define xcoff_big_format_p(abfd) \ - ((NULL != bfd_ardata (abfd) && NULL == xcoff_ardata (abfd)) || \ - ((NULL != bfd_ardata (abfd)) && \ - (NULL != xcoff_ardata (abfd)) && \ - (xcoff_ardata (abfd)->magic[1] == 'b'))) -#else -/* Creates small archives by default. */ -#define xcoff_big_format_p(abfd) \ - (((NULL != bfd_ardata (abfd)) && \ - (NULL != xcoff_ardata (abfd)) && \ - (xcoff_ardata (abfd)->magic[1] == 'b'))) -#endif - -/* We store a copy of the xcoff_ar_file_hdr in the tdata field of the - artdata structure. Similar for the big archive. */ -#define xcoff_ardata(abfd) \ - ((struct xcoff_ar_file_hdr *) bfd_ardata (abfd)->tdata) -#define xcoff_ardata_big(abfd) \ - ((struct xcoff_ar_file_hdr_big *) bfd_ardata (abfd)->tdata) - -/* We store a copy of the xcoff_ar_hdr in the arelt_data field of an - archive element. Similar for the big archive. */ -#define arch_eltdata(bfd) ((struct areltdata *) ((bfd)->arelt_data)) -#define arch_xhdr(bfd) \ - ((struct xcoff_ar_hdr *) arch_eltdata (bfd)->arch_header) -#define arch_xhdr_big(bfd) \ - ((struct xcoff_ar_hdr_big *) arch_eltdata (bfd)->arch_header) - -#endif /* _INTERNAL_XCOFF_H */ |