diff options
Diffstat (limited to 'include/aout/adobe.h')
| -rw-r--r-- | include/aout/adobe.h | 167 |
1 files changed, 86 insertions, 81 deletions
diff --git a/include/aout/adobe.h b/include/aout/adobe.h index 9c26794e1a..5e6cc8b19c 100644 --- a/include/aout/adobe.h +++ b/include/aout/adobe.h @@ -24,23 +24,23 @@ /* Struct external_exec is the same. */ -/* This is the layout on disk of the 32-bit or 64-bit exec header. */ +/* 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 */ + 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 */ +/* Magic numbers for a.out files. */ #undef ZMAGIC #define ZMAGIC 0xAD0BE /* Cute, eh? */ @@ -63,18 +63,20 @@ struct external_exec 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 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 */ +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) is_this_really_unused? @@ -97,41 +99,43 @@ struct internal_segdesc { #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 */ +/* 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 */ +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) */ +#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_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_STAB 0xe0 /* If any of these bits are on, it's a debug symbol. */ #define N_INDR 0x0a @@ -147,10 +151,10 @@ struct internal_nlist { 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 */ +#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. */ @@ -170,25 +174,25 @@ struct internal_nlist { 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. -*/ + 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 */ +struct reloc_std_external +{ + bfd_byte r_address[BYTES_IN_WORD]; /* Offset 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_SH_BIG 5 /* To shift to units place. */ #define RELOC_STD_BITS_LENGTH_LITTLE 0x06 #define RELOC_STD_BITS_LENGTH_SH_LITTLE 1 @@ -204,7 +208,7 @@ struct reloc_std_external { #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 */ +#define RELOC_STD_SIZE (BYTES_IN_WORD + 3 + 1) /* Bytes per relocation entry. */ struct reloc_std_internal { @@ -227,21 +231,22 @@ struct reloc_std_internal 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" */ + 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 */ + 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 */ +struct reloc_ext_external +{ + bfd_byte r_address[BYTES_IN_WORD]; /* Offset 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 @@ -257,15 +262,15 @@ struct reloc_ext_external { enum reloc_type { - /* simple relocations */ + /* 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 */ + /* 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 */ + /* 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 */ @@ -274,16 +279,16 @@ enum reloc_type 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 */ + /* 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. (?) */ + /* For some sort of pc-rel P.I.C. (?) */ RELOC_PC10, RELOC_PC22, - /* P.I.C. jump table */ + /* P.I.C. jump table. */ RELOC_JMP_TBL, - /* reputedly for shared libraries somehow */ + /* Reputedly for shared libraries somehow. */ RELOC_SEGOFF16, RELOC_GLOB_DAT, RELOC_JMP_SLOT, @@ -301,14 +306,14 @@ enum reloc_type 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 */ +struct reloc_internal +{ + bfd_vma r_address; /* Offset 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__ */ +#endif /* __A_OUT_ADOBE_H__ */ |