diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/a.out.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/a.out.h | 143 |
1 files changed, 138 insertions, 5 deletions
diff --git a/sysdeps/unix/sysv/linux/a.out.h b/sysdeps/unix/sysv/linux/a.out.h index d963de74cf..f0514c93ad 100644 --- a/sysdeps/unix/sysv/linux/a.out.h +++ b/sysdeps/unix/sysv/linux/a.out.h @@ -1,5 +1,138 @@ -#ifdef _LIBC -# include_next <linux/a.out.h> -#else -# include <linux/a.out.h> -#endif +#ifndef __A_OUT_GNU_H__ +#define __A_OUT_GNU_H__ + +#include <bits/a.out.h> + +#define __GNU_EXEC_MACROS__ + +struct exec +{ + unsigned long a_info; /* Use macros N_MAGIC, etc for access. */ + unsigned int a_text; /* Length of text, in bytes. */ + unsigned int a_data; /* Length of data, in bytes. */ + unsigned int a_bss; /* Length of uninitialized data area for file, in bytes. */ + unsigned int a_syms; /* Length of symbol table data in file, in bytes. */ + unsigned int a_entry; /* Start address. */ + unsigned int a_trsize;/* Length of relocation info for text, in bytes. */ + unsigned int a_drsize;/* Length of relocation info for data, in bytes. */ +}; + +enum machine_type +{ + M_OLDSUN2 = 0, + M_68010 = 1, + M_68020 = 2, + M_SPARC = 3, + M_386 = 100, + M_MIPS1 = 151, + M_MIPS2 = 152 +}; + +#define N_MAGIC(exec) ((exec).a_info & 0xffff) +#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)) + +/* 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 +/* This indicates a demand-paged executable with the header in the text. + The first page is unmapped to help trap NULL pointer references. */ +#define QMAGIC 0314 +/* Code indicating core file. */ +#define CMAGIC 0421 + +#define N_TRSIZE(a) ((a).a_trsize) +#define N_DRSIZE(a) ((a).a_drsize) +#define N_SYMSIZE(a) ((a).a_syms) +#define N_BADMAG(x) \ + (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC \ + && N_MAGIC(x) != ZMAGIC && N_MAGIC(x) != QMAGIC) +#define _N_HDROFF(x) (1024 - sizeof (struct exec)) +#define N_TXTOFF(x) \ + (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : \ + (N_MAGIC(x) == QMAGIC ? 0 : sizeof (struct exec))) +#define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text) +#define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data) +#define N_DRELOFF(x) (N_TRELOFF(x) + N_TRSIZE(x)) +#define N_SYMOFF(x) (N_DRELOFF(x) + N_DRSIZE(x)) +#define N_STROFF(x) (N_SYMOFF(x) + N_SYMSIZE(x)) + +/* Address of text segment in memory after it is loaded. */ +#define N_TXTADDR(x) (N_MAGIC(x) == QMAGIC ? 4096 : 0) + +/* Address of data segment in memory after it is loaded. */ +#define SEGMENT_SIZE 1024 + +#define _N_SEGMENT_ROUND(x) (((x) + SEGMENT_SIZE - 1) & ~(SEGMENT_SIZE - 1)) +#define _N_TXTENDADDR(x) (N_TXTADDR(x)+(x).a_text) + +#define N_DATADDR(x) \ + (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x)) \ + : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x)))) +#define N_BSSADDR(x) (N_DATADDR(x) + (x).a_data) + +#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. */ + +#define N_UNDF 0 +#define N_ABS 2 +#define N_TEXT 4 +#define N_DATA 6 +#define N_BSS 8 +#define N_FN 15 +#define N_EXT 1 +#define N_TYPE 036 +#define N_STAB 0340 +#define N_INDR 0xa +#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_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 +{ + int r_address; + unsigned int r_symbolnum:24; + unsigned int r_pcrel:1; + unsigned int r_length:2; + unsigned int r_extern:1; + unsigned int r_pad:4; +}; +#endif /* no N_RELOCATION_INFO_DECLARED. */ + +#endif /* __A_OUT_GNU_H__ */ |