sysdeps/unix/sysv/linux/sparc/a.out.h

   1 #ifndef __A_OUT_GNU_H__
   2 #define __A_OUT_GNU_H__
   3
   4 #include <bits/a.out.h>
   5
   6 #define __GNU_EXEC_MACROS__
   7
   8 struct exec
   9 {
  10   unsigned char a_dynamic:1;    /* A __DYNAMIC is in this image.  */
  11   unsigned char a_toolversion:7;
  12   unsigned char a_machtype;
  13   unsigned short a_info;
  14   unsigned int a_text;          /* Length of text, in bytes.  */
  15   unsigned int a_data;          /* Length of data, in bytes.  */
  16   unsigned int a_bss;           /* Length of bss, in bytes.  */
  17   unsigned int a_syms;          /* Length of symbol table, in bytes.  */
  18   unsigned int a_entry;         /* Where program begins.  */
  19   unsigned int a_trsize;
  20   unsigned int a_drsize;
  21 };
  22
  23 enum machine_type
  24 {
  25   M_OLDSUN2 = 0,
  26   M_68010 = 1,
  27   M_68020 = 2,
  28   M_SPARC = 3,
  29   M_386 = 100,
  30   M_MIPS1 = 151,
  31   M_MIPS2 = 152
  32 };
  33
  34 #define N_MAGIC(exec)   ((exec).a_info & 0xffff)
  35 #define N_MACHTYPE(exec) ((enum machine_type)(((exec).a_info >> 16) & 0xff))
  36 #define N_FLAGS(exec)   (((exec).a_info >> 24) & 0xff)
  37 #define N_SET_INFO(exec, magic, type, flags) \
  38   ((exec).a_info = ((magic) & 0xffff)                                   \
  39    | (((int)(type) & 0xff) << 16)                                       \
  40    | (((flags) & 0xff) << 24))
  41 #define N_SET_MAGIC(exec, magic) \
  42   ((exec).a_info = ((exec).a_info & 0xffff0000) | ((magic) & 0xffff))
  43 #define N_SET_MACHTYPE(exec, machtype) \
  44   ((exec).a_info =                                                      \
  45    ((exec).a_info&0xff00ffff) | ((((int)(machtype))&0xff) << 16))
  46 #define N_SET_FLAGS(exec, flags) \
  47   ((exec).a_info =                                                      \
  48    ((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24))
  49
  50 /* Code indicating object file or impure executable.  */
  51 #define OMAGIC 0407
  52 /* Code indicating pure executable.  */
  53 #define NMAGIC 0410
  54 /* Code indicating demand-paged executable.  */
  55 #define ZMAGIC 0413
  56 /* This indicates a demand-paged executable with the header in the text.
  57    The first page is unmapped to help trap NULL pointer references.  */
  58 #define QMAGIC 0314
  59 /* Code indicating core file.  */
  60 #define CMAGIC 0421
  61
  62 #define N_TRSIZE(a)     ((a).a_trsize)
  63 #define N_DRSIZE(a)     ((a).a_drsize)
  64 #define N_SYMSIZE(a)    ((a).a_syms)
  65 #define N_BADMAG(x) \
  66   (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC                         \
  67    && N_MAGIC(x) != ZMAGIC && N_MAGIC(x) != QMAGIC)
  68 #define _N_HDROFF(x)    (1024 - sizeof (struct exec))
  69 #define N_TXTOFF(x) \
  70   (N_MAGIC(x) == ZMAGIC ? 0 : sizeof (struct exec))
  71 #define N_DATOFF(x)     (N_TXTOFF(x) + (x).a_text)
  72 #define N_TRELOFF(x)    (N_DATOFF(x) + (x).a_data)
  73 #define N_DRELOFF(x)    (N_TRELOFF(x) + N_TRSIZE(x))
  74 #define N_SYMOFF(x) \
  75   (N_TXTOFF(x) + (x).a_text + (x).a_data + (x).a_trsize + (x).a_drsize)
  76 #define N_STROFF(x)     (N_SYMOFF(x) + N_SYMSIZE(x))
  77
  78 #define SPARC_PGSIZE    0x2000
  79
  80 /* Address of text segment in memory after it is loaded.  */
  81 #define N_TXTADDR(x) \
  82  (unsigned long)(((N_MAGIC(x) == ZMAGIC) && ((x).a_entry < SPARC_PGSIZE)) \
  83                  ? 0 : SPARC_PGSIZE)
  84
  85 /* Address of data segment in memory after it is loaded.  */
  86 #define SEGMENT_SIZE    SPARC_PGSIZE
  87
  88 #define _N_SEGMENT_ROUND(x) (((x) + SEGMENT_SIZE - 1) & ~(SEGMENT_SIZE - 1))
  89 #define _N_TXTENDADDR(x) (N_TXTADDR(x)+(x).a_text)
  90
  91 #define N_DATADDR(x) \
  92   (N_MAGIC(x)==OMAGIC                                                   \
  93    ? (N_TXTADDR(x) + (x).a_text)                                        \
  94    : (unsigned long)(_N_SEGMENT_ROUND (_N_TXTENDADDR(x))))
  95 #define N_BSSADDR(x) (N_DATADDR(x) + (x).a_data)
  96
  97 #if !defined (N_NLIST_DECLARED)
  98 struct nlist
  99 {
 100   union
 101     {
 102       char *n_name;
 103       struct nlist *n_next;
 104       long n_strx;
 105     } n_un;
 106   unsigned char n_type;
 107   char n_other;
 108   short n_desc;
 109   unsigned long n_value;
 110 };
 111 #endif /* no N_NLIST_DECLARED.  */
 112
 113 #define N_UNDF  0
 114 #define N_ABS   2
 115 #define N_TEXT  4
 116 #define N_DATA  6
 117 #define N_BSS   8
 118 #define N_FN    15
 119 #define N_EXT   1
 120 #define N_TYPE  036
 121 #define N_STAB  0340
 122 #define N_INDR  0xa
 123 #define N_SETA  0x14    /* Absolute set element symbol.  */
 124 #define N_SETT  0x16    /* Text set element symbol.  */
 125 #define N_SETD  0x18    /* Data set element symbol.  */
 126 #define N_SETB  0x1A    /* Bss set element symbol.  */
 127 #define N_SETV  0x1C    /* Pointer to set vector in data area.  */
 128
 129 #if !defined (N_RELOCATION_INFO_DECLARED)
 130 enum reloc_type
 131 {
 132   RELOC_8,
 133   RELOC_16,
 134   RELOC_32,
 135   RELOC_DISP8,
 136   RELOC_DISP16,
 137   RELOC_DISP32,
 138   RELOC_WDISP30,
 139   RELOC_WDISP22,
 140   RELOC_HI22,
 141   RELOC_22,
 142   RELOC_13,
 143   RELOC_LO10,
 144   RELOC_SFA_BASE,
 145   RELOC_SFA_OFF13,
 146   RELOC_BASE10,
 147   RELOC_BASE13,
 148   RELOC_BASE22,
 149   RELOC_PC10,
 150   RELOC_PC22,
 151   RELOC_JMP_TBL,
 152   RELOC_SEGOFF16,
 153   RELOC_GLOB_DAT,
 154   RELOC_JMP_SLOT,
 155   RELOC_RELATIVE
 156 };
 157
 158 /* This structure describes a single relocation to be performed.
 159    The text-relocation section of the file is a vector of these structures,
 160    all of which apply to the text section.
 161    Likewise, the data-relocation section applies to the data section.  */
 162
 163 struct relocation_info
 164 {
 165   unsigned int r_address;
 166   unsigned int r_index:24;
 167   unsigned int r_extern:1;
 168   int r_pad:2;
 169   enum reloc_type r_type:5;
 170   int r_addend;
 171 };
 172 #endif /* no N_RELOCATION_INFO_DECLARED.  */
 173
 174 #endif /* __A_OUT_GNU_H__ */