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Diffstat (limited to 'include/aout/adobe.h')
| -rw-r--r-- | include/aout/adobe.h | 313 |
1 files changed, 0 insertions, 313 deletions
diff --git a/include/aout/adobe.h b/include/aout/adobe.h deleted file mode 100644 index c751d10..0000000 --- a/include/aout/adobe.h +++ /dev/null @@ -1,313 +0,0 @@ -/* `a.out.adobe' differences from standard a.out files - - Copyright 2001 Free Software Foundation, Inc. - - 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 __A_OUT_ADOBE_H__ -#define __A_OUT_ADOBE_H__ - -#define BYTES_IN_WORD 4 - -/* Struct external_exec is the same. */ - -/* This is the layout on disk of the 32-bit or 64-bit exec header. */ - -struct external_exec -{ - bfd_byte e_info[4]; /* magic number and stuff */ - bfd_byte e_text[BYTES_IN_WORD]; /* length of text section in bytes */ - bfd_byte e_data[BYTES_IN_WORD]; /* length of data section in bytes */ - bfd_byte e_bss[BYTES_IN_WORD]; /* length of bss area in bytes */ - bfd_byte e_syms[BYTES_IN_WORD]; /* length of symbol table in bytes */ - bfd_byte e_entry[BYTES_IN_WORD]; /* start address */ - bfd_byte e_trsize[BYTES_IN_WORD]; /* length of text relocation info */ - bfd_byte e_drsize[BYTES_IN_WORD]; /* length of data relocation info */ -}; - -#define EXEC_BYTES_SIZE (4 + BYTES_IN_WORD * 7) - -/* Magic numbers for a.out files */ - -#undef ZMAGIC -#define ZMAGIC 0xAD0BE /* Cute, eh? */ -#undef OMAGIC -#undef NMAGIC - -#define N_BADMAG(x) ((x).a_info != ZMAGIC) - -/* By default, segment size is constant. But some machines override this - to be a function of the a.out header (e.g. machine type). */ -#ifndef N_SEGSIZE -#define N_SEGSIZE(x) SEGMENT_SIZE -#endif -#undef N_SEGSIZE /* FIXMEXXXX */ - -/* Segment information for the a.out.Adobe format is specified after the - file header. It contains N segment descriptors, followed by one with - a type of zero. - - The actual text of the segments starts at N_TXTOFF in the file, - regardless of how many or how few segment headers there are. */ - -struct external_segdesc { - unsigned char e_type[1]; - unsigned char e_size[3]; - unsigned char e_virtbase[4]; - unsigned char e_filebase[4]; -}; - -struct internal_segdesc { - unsigned int a_type:8; /* Segment type N_TEXT, N_DATA, 0 */ - unsigned int a_size:24; /* Segment size */ - bfd_vma a_virtbase; /* Virtual address */ - unsigned int a_filebase; /* Base address in object file */ -}; - -#define N_TXTADDR(x) \ - -/* This is documented to be at 1024, but appears to really be at 2048. - FIXME?! */ -#define N_TXTOFF(x) 2048 - -#define N_TXTSIZE(x) ((x).a_text) - -#define N_DATADDR(x) - -#define N_BSSADDR(x) - -/* Offsets of the various portions of the file after the text segment. */ - -#define N_DATOFF(x) ( N_TXTOFF(x) + N_TXTSIZE(x) ) -#define N_TRELOFF(x) ( N_DATOFF(x) + (x).a_data ) -#define N_DRELOFF(x) ( N_TRELOFF(x) + (x).a_trsize ) -#define N_SYMOFF(x) ( N_DRELOFF(x) + (x).a_drsize ) -#define N_STROFF(x) ( N_SYMOFF(x) + (x).a_syms ) - -/* Symbols */ -struct external_nlist { - bfd_byte e_strx[BYTES_IN_WORD]; /* index into string table of name */ - bfd_byte e_type[1]; /* type of symbol */ - bfd_byte e_other[1]; /* misc info (usually empty) */ - bfd_byte e_desc[2]; /* description field */ - bfd_byte e_value[BYTES_IN_WORD]; /* value of symbol */ -}; - -#define EXTERNAL_NLIST_SIZE (BYTES_IN_WORD+4+BYTES_IN_WORD) - -struct internal_nlist { - unsigned long n_strx; /* index into string table of name */ - unsigned char n_type; /* type of symbol */ - unsigned char n_other; /* misc info (usually empty) */ - unsigned short n_desc; /* description field */ - bfd_vma n_value; /* value of symbol */ -}; - -/* The n_type field is the symbol type, containing: */ - -#define N_UNDF 0 /* Undefined symbol */ -#define N_ABS 2 /* Absolute symbol -- defined at particular addr */ -#define N_TEXT 4 /* Text sym -- defined at offset in text seg */ -#define N_DATA 6 /* Data sym -- defined at offset in data seg */ -#define N_BSS 8 /* BSS sym -- defined at offset in zero'd seg */ -#define N_COMM 0x12 /* Common symbol (visible after shared lib dynlink) */ -#define N_FN 0x1f /* File name of .o file */ -#define N_FN_SEQ 0x0C /* N_FN from Sequent compilers (sigh) */ -/* Note: N_EXT can only be usefully OR-ed with N_UNDF, N_ABS, N_TEXT, - N_DATA, or N_BSS. When the low-order bit of other types is set, - (e.g. N_WARNING versus N_FN), they are two different types. */ -#define N_EXT 1 /* External symbol (as opposed to local-to-this-file) */ -#define N_TYPE 0x1e -#define N_STAB 0xe0 /* If any of these bits are on, it's a debug symbol */ - -#define N_INDR 0x0a - -/* The following symbols refer to set elements. - All the N_SET[ATDB] symbols with the same name form one set. - Space is allocated for the set in the text section, and each set - elements value is stored into one word of the space. - The first word of the space is the length of the set (number of elements). - - The address of the set is made into an N_SETV symbol - whose name is the same as the name of the set. - This symbol acts like a N_DATA global symbol - in that it can satisfy undefined external references. */ - -/* These appear as input to LD, in a .o file. */ -#define N_SETA 0x14 /* Absolute set element symbol */ -#define N_SETT 0x16 /* Text set element symbol */ -#define N_SETD 0x18 /* Data set element symbol */ -#define N_SETB 0x1A /* Bss set element symbol */ - -/* This is output from LD. */ -#define N_SETV 0x1C /* Pointer to set vector in data area. */ - -/* Warning symbol. The text gives a warning message, the next symbol - in the table will be undefined. When the symbol is referenced, the - message is printed. */ - -#define N_WARNING 0x1e - -/* Relocations - - There are two types of relocation flavours for a.out systems, - standard and extended. The standard form is used on systems where the - instruction has room for all the bits of an offset to the operand, whilst - the extended form is used when an address operand has to be split over n - instructions. Eg, on the 68k, each move instruction can reference - the target with a displacement of 16 or 32 bits. On the sparc, move - instructions use an offset of 14 bits, so the offset is stored in - the reloc field, and the data in the section is ignored. -*/ - -/* This structure describes a single relocation to be performed. - The text-relocation section of the file is a vector of these structures, - all of which apply to the text section. - Likewise, the data-relocation section applies to the data section. */ - -struct reloc_std_external { - bfd_byte r_address[BYTES_IN_WORD]; /* offset of of data to relocate */ - bfd_byte r_index[3]; /* symbol table index of symbol */ - bfd_byte r_type[1]; /* relocation type */ -}; - -#define RELOC_STD_BITS_PCREL_BIG 0x80 -#define RELOC_STD_BITS_PCREL_LITTLE 0x01 - -#define RELOC_STD_BITS_LENGTH_BIG 0x60 -#define RELOC_STD_BITS_LENGTH_SH_BIG 5 /* To shift to units place */ -#define RELOC_STD_BITS_LENGTH_LITTLE 0x06 -#define RELOC_STD_BITS_LENGTH_SH_LITTLE 1 - -#define RELOC_STD_BITS_EXTERN_BIG 0x10 -#define RELOC_STD_BITS_EXTERN_LITTLE 0x08 - -#define RELOC_STD_BITS_BASEREL_BIG 0x08 -#define RELOC_STD_BITS_BASEREL_LITTLE 0x08 - -#define RELOC_STD_BITS_JMPTABLE_BIG 0x04 -#define RELOC_STD_BITS_JMPTABLE_LITTLE 0x04 - -#define RELOC_STD_BITS_RELATIVE_BIG 0x02 -#define RELOC_STD_BITS_RELATIVE_LITTLE 0x02 - -#define RELOC_STD_SIZE (BYTES_IN_WORD + 3 + 1) /* Bytes per relocation entry */ - -struct reloc_std_internal -{ - bfd_vma r_address; /* Address (within segment) to be relocated. */ - /* The meaning of r_symbolnum depends on r_extern. */ - unsigned int r_symbolnum:24; - /* Nonzero means value is a pc-relative offset - and it should be relocated for changes in its own address - as well as for changes in the symbol or section specified. */ - unsigned int r_pcrel:1; - /* Length (as exponent of 2) of the field to be relocated. - Thus, a value of 2 indicates 1<<2 bytes. */ - unsigned int r_length:2; - /* 1 => relocate with value of symbol. - r_symbolnum is the index of the symbol - in files the symbol table. - 0 => relocate with the address of a segment. - r_symbolnum is N_TEXT, N_DATA, N_BSS or N_ABS - (the N_EXT bit may be set also, but signifies nothing). */ - unsigned int r_extern:1; - /* The next three bits are for SunOS shared libraries, and seem to - be undocumented. */ - unsigned int r_baserel:1; /* Linkage table relative */ - unsigned int r_jmptable:1; /* pc-relative to jump table */ - unsigned int r_relative:1; /* "relative relocation" */ - /* unused */ - unsigned int r_pad:1; /* Padding -- set to zero */ -}; - - -/* EXTENDED RELOCS */ - -struct reloc_ext_external { - bfd_byte r_address[BYTES_IN_WORD]; /* offset of of data to relocate */ - bfd_byte r_index[3]; /* symbol table index of symbol */ - bfd_byte r_type[1]; /* relocation type */ - bfd_byte r_addend[BYTES_IN_WORD]; /* datum addend */ -}; - -#define RELOC_EXT_BITS_EXTERN_BIG 0x80 -#define RELOC_EXT_BITS_EXTERN_LITTLE 0x01 - -#define RELOC_EXT_BITS_TYPE_BIG 0x1F -#define RELOC_EXT_BITS_TYPE_SH_BIG 0 -#define RELOC_EXT_BITS_TYPE_LITTLE 0xF8 -#define RELOC_EXT_BITS_TYPE_SH_LITTLE 3 - -/* Bytes per relocation entry */ -#define RELOC_EXT_SIZE (BYTES_IN_WORD + 3 + 1 + BYTES_IN_WORD) - -enum reloc_type -{ - /* simple relocations */ - RELOC_8, /* data[0:7] = addend + sv */ - RELOC_16, /* data[0:15] = addend + sv */ - RELOC_32, /* data[0:31] = addend + sv */ - /* pc-rel displacement */ - RELOC_DISP8, /* data[0:7] = addend - pc + sv */ - RELOC_DISP16, /* data[0:15] = addend - pc + sv */ - RELOC_DISP32, /* data[0:31] = addend - pc + sv */ - /* Special */ - RELOC_WDISP30, /* data[0:29] = (addend + sv - pc)>>2 */ - RELOC_WDISP22, /* data[0:21] = (addend + sv - pc)>>2 */ - RELOC_HI22, /* data[0:21] = (addend + sv)>>10 */ - RELOC_22, /* data[0:21] = (addend + sv) */ - RELOC_13, /* data[0:12] = (addend + sv) */ - RELOC_LO10, /* data[0:9] = (addend + sv) */ - RELOC_SFA_BASE, - RELOC_SFA_OFF13, - /* P.I.C. (base-relative) */ - RELOC_BASE10, /* Not sure - maybe we can do this the */ - RELOC_BASE13, /* right way now */ - RELOC_BASE22, - /* for some sort of pc-rel P.I.C. (?) */ - RELOC_PC10, - RELOC_PC22, - /* P.I.C. jump table */ - RELOC_JMP_TBL, - /* reputedly for shared libraries somehow */ - RELOC_SEGOFF16, - RELOC_GLOB_DAT, - RELOC_JMP_SLOT, - RELOC_RELATIVE, - - RELOC_11, - RELOC_WDISP2_14, - RELOC_WDISP19, - RELOC_HHI22, /* data[0:21] = (addend + sv) >> 42 */ - RELOC_HLO10, /* data[0:9] = (addend + sv) >> 32 */ - - /* 29K relocation types */ - RELOC_JUMPTARG, - RELOC_CONST, - RELOC_CONSTH, - - NO_RELOC - }; - - -struct reloc_internal { - bfd_vma r_address; /* offset of of data to relocate */ - long r_index; /* symbol table index of symbol */ - enum reloc_type r_type; /* relocation type */ - bfd_vma r_addend; /* datum addend */ -}; - -#endif /* __A_OUT_ADOBE_H__ */ |