include/coff/mipspe.h

   1 /*** coff information for Windows CE with MIPS VR4111 */
   2
   3 /********************** FILE HEADER **********************/
   4
   5 struct external_filehdr {
   6         char f_magic[2];        /* magic number                 */
   7         char f_nscns[2];        /* number of sections           */
   8         char f_timdat[4];       /* time & date stamp            */
   9         char f_symptr[4];       /* file pointer to symtab       */
  10         char f_nsyms[4];        /* number of symtab entries     */
  11         char f_opthdr[2];       /* sizeof(optional hdr)         */
  12         char f_flags[2];        /* flags                        */
  13 };
  14
  15
  16
  17 #define MIPS_ARCH_MAGIC_WINCE   0x0166  /* Windows CE - little endian */
  18 #define MIPS_PE_MAGIC           0x010b
  19
  20 #define MIPSBADMAG(x) \
  21  ((x).f_magic!=MIPS_ARCH_MAGIC_WINCE)
  22
  23 #define FILHDR  struct external_filehdr
  24 #define FILHSZ  20
  25
  26
  27 /********************** AOUT "OPTIONAL HEADER" **********************/
  28
  29
  30 typedef struct
  31 {
  32   char  magic[2];               /* type of file                         */
  33   char  vstamp[2];              /* version stamp                        */
  34   char  tsize[4];               /* text size in bytes, padded to FW bdry*/
  35   char  dsize[4];               /* initialized data "  "                */
  36   char  bsize[4];               /* uninitialized data "   "             */
  37   char  entry[4];               /* entry pt.                            */
  38   char  text_start[4];          /* base of text used for this file */
  39   char  data_start[4];          /* base of data used for this file */
  40 }
  41 AOUTHDR;
  42
  43
  44 #define AOUTHDRSZ 28
  45 #define AOUTSZ 28
  46
  47
  48
  49
  50 /* define some NT default values */
  51 /*  #define NT_IMAGE_BASE        0x400000 moved to internal.h */
  52 #define NT_SECTION_ALIGNMENT 0x1000
  53 #define NT_FILE_ALIGNMENT    0x200
  54 #define NT_DEF_RESERVE       0x100000
  55 #define NT_DEF_COMMIT        0x1000
  56
  57 /********************** SECTION HEADER **********************/
  58
  59
  60 struct external_scnhdr {
  61         char            s_name[8];      /* section name                 */
  62         char            s_paddr[4];     /* physical address, aliased s_nlib */
  63         char            s_vaddr[4];     /* virtual address              */
  64         char            s_size[4];      /* section size                 */
  65         char            s_scnptr[4];    /* file ptr to raw data for section */
  66         char            s_relptr[4];    /* file ptr to relocation       */
  67         char            s_lnnoptr[4];   /* file ptr to line numbers     */
  68         char            s_nreloc[2];    /* number of relocation entries */
  69         char            s_nlnno[2];     /* number of line number entries*/
  70         char            s_flags[4];     /* flags                        */
  71 };
  72
  73 /*
  74  * names of "special" sections
  75  */
  76 #define _TEXT   ".text"
  77 #define _DATA   ".data"
  78 #define _BSS    ".bss"
  79
  80
  81 #define SCNHDR  struct external_scnhdr
  82 #define SCNHSZ  40
  83
  84
  85 /********************** LINE NUMBERS **********************/
  86
  87 /* 1 line number entry for every "breakpointable" source line in a section.
  88  * Line numbers are grouped on a per function basis; first entry in a function
  89  * grouping will have l_lnno = 0 and in place of physical address will be the
  90  * symbol table index of the function name.
  91  */
  92 struct external_lineno {
  93         union {
  94                 char l_symndx[4];       /* function name symbol index, iff l_lnno == 0*/
  95                 char l_paddr[4];        /* (physical) address of line number    */
  96         } l_addr;
  97         char l_lnno[2]; /* line number          */
  98 };
  99
 100 #define GET_LINENO_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) (ext->l_lnno));
 101 #define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_16(abfd,val,  (bfd_byte *) (ext->l_lnno));
 102
 103 #define LINENO  struct external_lineno
 104 #define LINESZ  6
 105
 106
 107 /********************** SYMBOLS **********************/
 108
 109 #define E_SYMNMLEN      8       /* # characters in a symbol name        */
 110 #define E_FILNMLEN      14      /* # characters in a file name          */
 111 #define E_DIMNUM        4       /* # array dimensions in auxiliary entry */
 112
 113 struct external_syment
 114 {
 115   union {
 116     char e_name[E_SYMNMLEN];
 117     struct {
 118       char e_zeroes[4];
 119       char e_offset[4];
 120     } e;
 121   } e;
 122   char e_value[4];
 123   char e_scnum[2];
 124   char e_type[2];
 125   char e_sclass[1];
 126   char e_numaux[1];
 127 };
 128
 129
 130
 131 #define N_BTMASK        (017)
 132 #define N_TMASK         (060)
 133 #define N_BTSHFT        (4)
 134 #define N_TSHIFT        (2)
 135
 136
 137 union external_auxent {
 138         struct {
 139                 char x_tagndx[4];       /* str, un, or enum tag indx */
 140                 union {
 141                         struct {
 142                             char  x_lnno[2]; /* declaration line number */
 143                             char  x_size[2]; /* str/union/array size */
 144                         } x_lnsz;
 145                         char x_fsize[4];        /* size of function */
 146                 } x_misc;
 147                 union {
 148                         struct {                /* if ISFCN, tag, or .bb */
 149                             char x_lnnoptr[4];  /* ptr to fcn line # */
 150                             char x_endndx[4];   /* entry ndx past block end */
 151                         } x_fcn;
 152                         struct {                /* if ISARY, up to 4 dimen. */
 153                             char x_dimen[E_DIMNUM][2];
 154                         } x_ary;
 155                 } x_fcnary;
 156                 char x_tvndx[2];                /* tv index */
 157         } x_sym;
 158
 159         union {
 160                 char x_fname[E_FILNMLEN];
 161                 struct {
 162                         char x_zeroes[4];
 163                         char x_offset[4];
 164                 } x_n;
 165         } x_file;
 166
 167         struct {
 168                 char x_scnlen[4];                       /* section length */
 169                 char x_nreloc[2];       /* # relocation entries */
 170                 char x_nlinno[2];       /* # line numbers */
 171                 char x_checksum[4];     /* section COMDAT checksum */
 172                 char x_associated[2];   /* COMDAT associated section index */
 173                 char x_comdat[1];       /* COMDAT selection number */
 174         } x_scn;
 175
 176         struct {
 177                 char x_tvfill[4];       /* tv fill value */
 178                 char x_tvlen[2];        /* length of .tv */
 179                 char x_tvran[2][2];     /* tv range */
 180         } x_tv;         /* info about .tv section (in auxent of symbol .tv)) */
 181
 182
 183 };
 184
 185 #define SYMENT  struct external_syment
 186 #define SYMESZ  18
 187 #define AUXENT  union external_auxent
 188 #define AUXESZ  18
 189
 190
 191
 192 /********************** RELOCATION DIRECTIVES **********************/
 193
 194 /* The external reloc has an offset field, because some of the reloc
 195    types on the h8 don't have room in the instruction for the entire
 196    offset - eg the strange jump and high page addressing modes */
 197
 198 struct external_reloc {
 199   char r_vaddr[4];
 200   char r_symndx[4];
 201   char r_type[2];
 202 };
 203
 204
 205 #define RELOC struct external_reloc
 206 #define RELSZ 10
 207
 208 /* MIPS PE relocation types. */
 209
 210 #define MIPS_R_ABSOLUTE 0 /* ignored */
 211 #define MIPS_R_REFHALF  1
 212 #define MIPS_R_REFWORD  2
 213 #define MIPS_R_JMPADDR  3
 214 #define MIPS_R_REFHI    4 /* PAIR follows */
 215 #define MIPS_R_REFLO    5
 216 #define MIPS_R_GPREL    6
 217 #define MIPS_R_LITERAL  7 /* same as GPREL */
 218 #define MIPS_R_SECTION  10
 219 #define MIPS_R_SECREL   11
 220 #define MIPS_R_SECRELLO 12
 221 #define MIPS_R_SECRELHI 13 /* PAIR follows */
 222 #define MIPS_R_RVA      34 /* 0x22 */
 223 #define MIPS_R_PAIR     37 /* 0x25 - symndx is really a signed 16-bit addend */