#ifndef __A_OUT_GNU_H__ #define __A_OUT_GNU_H__ #include #ifdef __cplusplus extern "C" { #endif #define __GNU_EXEC_MACROS__ #ifndef __STRUCT_EXEC_OVERRIDE__ struct exec { unsigned a_midmag; /* Use macros N_MAGIC, etc for access */ #define a_info a_midmag unsigned a_text; /* size of text, in bytes */ unsigned a_data; /* size of data, in bytes */ unsigned a_bss; /* size of uninitialized data area, in bytes */ unsigned a_syms; /* length of symbol table data, in bytes */ unsigned a_entry; /* start address */ unsigned a_trsize; /* size of reloc info for text, in bytes */ unsigned a_drsize; /* size of reloc info for data, in bytes */ }; #endif /* __STRUCT_EXEC_OVERRIDE__ */ #define MID_ZERO 0 /* unknown - implementation dependent */ #define MID_SUN010 1 /* sun 68010/68020 binary */ #define MID_SUN020 2 /* sun 68020-only binary */ #define MID_PC386 100 /* 386 PC binary. (so quoth BFD) */ #define MID_HP200 200 /* hp200 (68010) BSD binary */ #define MID_I386 134 /* i386 BSD binary */ #define MID_M68K 135 /* m68k BSD binary with 8K page sizes */ #define MID_M68K4K 136 /* m68k BSD binary with 4K page sizes */ #define MID_NS32532 137 /* ns32532 */ #define MID_SPARC 138 /* sparc */ #define MID_PMAX 139 /* pmax */ #define MID_VAX 140 /* vax */ #define MID_ALPHA 141 /* Alpha BSD binary */ #define MID_M88K 151 /* m88k BSD binary */ #define MID_HP300 300 /* hp300 (68020+68881) BSD binary */ #define MID_HPUX 0x20C /* hp200/300 HP-UX binary */ /* these go in the N_MACHTYPE field */ enum machine_type { #if defined (M_OLDSUN2) M__OLDSUN2 = M_OLDSUN2, #else M_OLDSUN2 = 0, #endif #if defined (M_68010) M__68010 = M_68010, #else M_68010 = 1, #endif #if defined (M_68020) M__68020 = M_68020, #else M_68020 = 2, #endif #if defined (M_SPARC) M__SPARC = M_SPARC, #else M_SPARC = 3, #endif /* skip a bunch so we don't run into any of sun's numbers */ M_386 = 100, M_88K = 151 }; #define N_GETMAGIC(ex) \ ((ex).a_midmag & 0xffff) #define N_GETMID(ex) \ (((ex).a_midmag >> 16)&0xff) #if !defined (N_MAGIC) #define N_MAGIC(exec) ((exec).a_info & 0xffff) #endif #define N_MACHTYPE(exec) ((enum machine_type)(((exec).a_info >> 16) & 0xff)) #define N_FLAGS(exec) (((exec).a_info >> 24) & 0xff) #define N_SET_INFO(exec, magic, type, flags) \ ((exec).a_info = ((magic) & 0xffff) \ | (((int)(type) & 0xff) << 16) \ | (((flags) & 0xff) << 24)) #define N_SET_MAGIC(exec, magic) \ ((exec).a_info = (((exec).a_info & 0xffff0000) | ((magic) & 0xffff))) #define N_SET_MACHTYPE(exec, machtype) \ ((exec).a_info = \ ((exec).a_info&0xff00ffff) | ((((int)(machtype))&0xff) << 16)) #define N_SET_FLAGS(exec, flags) \ ((exec).a_info = \ ((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24)) #ifndef OMAGIC /* Code indicating object file or impure executable. */ #define OMAGIC 0407 /* Code indicating pure executable. */ #define NMAGIC 0410 /* Code indicating demand-paged executable. */ #define ZMAGIC 0413 #define QMAGIC 0314 /* "compact" demand load format; deprecated */ #endif /* not OMAGIC */ #if !defined (N_BADMAG) #define N_BADMAG(x) \ (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC \ && N_MAGIC(x) != ZMAGIC) #endif #define _N_BADMAG(x) \ (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC \ && N_MAGIC(x) != ZMAGIC) #if !defined(sparc) && !defined(m88k) #define _N_HDROFF(x) (SEGMENT_SIZE - sizeof (struct exec)) #else #define _N_HDROFF(x) (- sizeof (struct exec)) #endif #if !defined (N_TXTOFF) #define N_TXTOFF(x) \ (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : sizeof (struct exec)) #endif #if !defined (N_DATOFF) #define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text) #endif #if !defined (N_TRELOFF) #define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data) #endif #if !defined (N_DRELOFF) #define N_DRELOFF(x) (N_TRELOFF(x) + (x).a_trsize) #endif #if !defined (N_SYMOFF) #define N_SYMOFF(x) (N_DRELOFF(x) + (x).a_drsize) #endif #if !defined (N_STROFF) #define N_STROFF(x) (N_SYMOFF(x) + (x).a_syms) #endif /* Address of text segment in memory after it is loaded. */ #if !defined (N_TXTADDR) #define N_TXTADDR(x) 0 #endif /* Address of data segment in memory after it is loaded. Note that it is up to you to define SEGMENT_SIZE on machines not listed here. */ #if defined (hp300) || defined (mips) || defined(m88k) #ifndef PAGE_SIZE #define PAGE_SIZE 4096 #endif /* PAGE_SIZE */ #endif #if defined (sparc) || defined (NeXT) #define PAGE_SIZE 0x2000 #endif #if defined (sony) || (defined (sun) && defined (mc68000)) #define SEGMENT_SIZE 0x2000 #endif /* Sony or 68k Sun. */ #ifdef is68k #define SEGMENT_SIZE 0x20000 #endif #if defined(m68k) && defined(PORTAR) #define PAGE_SIZE 0x400 #endif #ifndef SEGMENT_SIZE /* This used to be first in this paragraph and under: if (defined(vax) || defined(hp300) || defined(pyr) || defined(sparc) \ || (defined(m68k) && defined(PORTAR)) \ || defined (NeXT) || defined (mips)) */ #define SEGMENT_SIZE PAGE_SIZE #endif #ifndef PAGE_SIZE /* This value is for i386-minix, but that has no predefine. Making it default will only cause confusion on machines which have no proper value defined. */ #define PAGE_SIZE 16 #endif #define PAGSIZ PAGE_SIZE #define SEGSIZ SEGMENT_SIZE #if !defined(__LDPGSZ) #define __LDPGSZ PAGE_SIZE #endif /* __LDPGSZ */ #define _N_SEGMENT_ROUND(x) (((x) + SEGMENT_SIZE - 1) & ~(SEGMENT_SIZE - 1)) #define _N_TXTENDADDR(x) (N_TXTADDR(x)+(x).a_text) #ifndef N_DATADDR #define N_DATADDR(x) \ (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x)) \ : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x)))) #endif /* Address of bss segment in memory after it is loaded. */ #if !defined (N_BSSADDR) #define N_BSSADDR(x) (N_DATADDR(x) + (x).a_data) #endif #if 0 #if !defined (N_NLIST_DECLARED) struct nlist { union { char *n_name; struct nlist *n_next; long n_strx; } n_un; unsigned char n_type; char n_other; short n_desc; unsigned long n_value; }; #endif /* no N_NLIST_DECLARED. */ #endif /* 0 */ #if !defined (N_UNDF) #define N_UNDF 0 #endif #if !defined (N_ABS) #define N_ABS 2 #endif #if !defined (N_TEXT) #define N_TEXT 4 #endif #if !defined (N_DATA) #define N_DATA 6 #endif #if !defined (N_BSS) #define N_BSS 8 #endif #if !defined (N_COMM) #define N_COMM 18 #endif #if !defined (N_FN) #define N_FN 15 #endif #if !defined (N_EXT) #define N_EXT 1 #endif #if !defined (N_TYPE) #define N_TYPE 036 #endif #if !defined (N_STAB) #define N_STAB 0340 #endif /* The following type indicates the definition of a symbol as being an indirect reference to another symbol. The other symbol appears as an undefined reference, immediately following this symbol. Indirection is asymmetrical. The other symbol's value will be used to satisfy requests for the indirect symbol, but not vice versa. If the other symbol does not have a definition, libraries will be searched to find a definition. */ #define N_INDR 0xa /* 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 element's 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. */ #if !defined (N_RELOCATION_INFO_DECLARED) /* 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 relocation_info { /* Address (within segment) to be relocated. */ int r_address; /* 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 file's 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; /* Four bits that aren't used, but when writing an object file it is desirable to clear them. */ unsigned int r_pad:4; }; #endif /* no N_RELOCATION_INFO_DECLARED. */ #define M_32_SWAP(x) (x) #define M_16_SWAP(x) (x) #define M_8_SWAP(x) (x) #ifdef __cplusplus } #endif #endif /* __A_OUT_GNU_H__ */