| #ifndef __A_OUT_GNU_H__ |
| #define __A_OUT_GNU_H__ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #define __GNU_EXEC_MACROS__ |
| |
| #ifndef __STRUCT_EXEC_OVERRIDE__ |
| |
| struct exec |
| { |
| unsigned long a_info; /* Use macros N_MAGIC, etc for access */ |
| 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 */ |
| |
| #if defined (sequent) && defined (i386) |
| struct gdtbl |
| { /* Global Descriptor Table */ |
| unsigned g_code[2]; |
| unsigned g_data[2]; |
| unsigned g_desc[2]; |
| } a_gdtbl; |
| unsigned a_shdata; /* size of initialized shared data */ |
| unsigned a_shbss; /* size of uninitialized shared data */ |
| unsigned a_shdrsize; /* size of shared data relocation */ |
| unsigned a_bootstrap[11]; /* bootstrap for standalone */ |
| unsigned a_reserved[3]; /* reserved for future use */ |
| unsigned a_version; /* object version */ |
| #endif /* Sequent Symmetry, Dynix 3.x */ |
| }; |
| |
| #endif /* __STRUCT_EXEC_OVERRIDE__ */ |
| |
| /* 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 |
| }; |
| |
| #if defined (sequent) && defined (i386) |
| |
| /* Dynix 3 wants the magic number to be the whole first longword. */ |
| |
| #define N_MAGIC(exec) ((exec).a_info) |
| #define N_MACHTYPE(exec) 0 |
| #define N_FLAGS(exec) 0 |
| #define N_SET_INFO(exec, magic, type, flags) N_SET_MAGIC ((exec), (magic)) |
| #define N_SET_MAGIC(exec, magic) ((exec).a_info = (magic)) |
| #define N_SET_MACHTYPE(exec, machtype) ((void) 0) |
| #define N_SET_FLAGS(exec, flags) ((void) 0) |
| #define OMAGIC 0x12eb /* impure format - for .o's */ |
| #define ZMAGIC 0x22eb /* demand load format - zero at zero */ |
| #define NMAGIC you lose /* syntax error -- no pure format */ |
| #define N_BADMAG(x) (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != ZMAGIC) |
| #define N_ADDRADJ(x) (N_MAGIC(x) == ZMAGIC ? SEGMENT_SIZE : 0) |
| #define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text - N_ADDRADJ(x)) |
| #define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data + (x).a_shdata) |
| #define N_SYMOFF(x) (N_DRELOFF(x) + (x).a_drsize + (x).a_shdrsize) |
| #define N_TXTADDR(x) SEGMENT_SIZE |
| #define N_COMM 0x0a /** conflicts with N_INDR **/ |
| #define N_FN 0x0c |
| /* Note that the Dynix binutils believe that N_SET[TDB] are |
| N_SH{DATA,BSS,COMM} -- be wary when mixing GNU & Dynix objects. */ |
| #define PAGE_SIZE 4096 |
| #define SEGMENT_SIZE PAGE_SIZE |
| |
| #else /* !(sequent && i386) */ |
| |
| #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)) |
| |
| #endif /* sequent && i386 */ |
| |
| #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 |
| #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) |
| |
| #ifndef sparc |
| #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) |
| #define PAGE_SIZE 4096 |
| #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 |
| #if defined(i386) && !defined(sequent) |
| /* For COFF encapsulation. */ |
| #define SEGMENT_SIZE 0x400000 |
| #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 |
| |
| #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 !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. */ |
| |
| #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. */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __A_OUT_GNU_H__ */ |