bfd/pc532-mach.c

   1 /* Written by Ian Dall
   2  *            19-Apr-94
   3  *
   4  * Formerly part of aout-pc532-mach.c. Split out to allow more
   5  * flexibility with multiple formats.
   6  *
   7  */
   8 /* This architecture has N_TXTOFF and N_TXTADDR defined as if
   9  * N_HEADER_IN_TEXT, but the a_text entry (text size) does not include the
  10  * space for the header. So we have N_HEADER_IN_TEXT defined to
  11  * 1 and specially define our own N_TXTSIZE
  12  */
  13
  14 #define N_HEADER_IN_TEXT(x) 1
  15 #define N_TXTSIZE(x) ((x).a_text)
  16
  17
  18 #define TEXT_START_ADDR 0x10000       /* from old ld */
  19 #define PAGE_SIZE 0x1000       /* from old ld,  032 & 532 are really 512/4k */
  20
  21 /* Use a_entry of 0 to distinguish object files from OMAGIC executables */
  22 #define N_TXTADDR(x) \
  23     (N_MAGIC(x) == OMAGIC ? \
  24         ((x).a_entry < TEXT_START_ADDR? 0: TEXT_START_ADDR): \
  25       (N_MAGIC(x) == NMAGIC? TEXT_START_ADDR: \
  26         TEXT_START_ADDR + EXEC_BYTES_SIZE))
  27
  28 #define ARCH 32
  29
  30 #define SEGMENT_SIZE    PAGE_SIZE
  31
  32 #define N_SHARED_LIB(x) 0
  33 #define SEGMENT_SIZE PAGE_SIZE
  34 #define DEFAULT_ARCH bfd_arch_ns32k
  35
  36 #define MY(OP) CAT(pc532mach_,OP)
  37
  38 #define TARGETNAME "a.out-pc532-mach"
  39
  40 #include "bfd.h"
  41 #include "sysdep.h"
  42 #include "aout-ns32k.h"
  43 #include "libaout.h"
  44 #include "libbfd.h"
  45 #include "aout/aout64.h"
  46
  47 /* We can`t use the MYNS macro here for cpp reasons too subtle
  48  * for me -- IWD
  49  */
  50 #define MY_bfd_reloc_type_lookup ns32kaout_bfd_reloc_type_lookup
  51
  52 /* libaout doesn't use NAME for these ... */
  53 #define MY_get_section_contents aout_32_get_section_contents
  54
  55 /* Forward declaration. Defined in aout-target.h */
  56 static boolean MY(set_sizes)();
  57
  58 static CONST struct aout_backend_data MY(backend_data) = {
  59   0,                            /* zmagic contiguous */
  60   1,                            /* text incl header */
  61   0,
  62   0,                            /* text vma? */
  63   MY(set_sizes),
  64   1,                            /* exec header is not counted */
  65 };
  66
  67 #define MY_backend_data &MY(backend_data)
  68
  69 static boolean
  70 MY(write_object_contents) (abfd)
  71      bfd *abfd;
  72 {
  73   struct external_exec exec_bytes;
  74   struct internal_exec *execp = exec_hdr (abfd);
  75
  76 #if CHOOSE_RELOC_SIZE
  77   CHOOSE_RELOC_SIZE(abfd);
  78 #else
  79   obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
  80 #endif
  81
  82   BFD_ASSERT(bfd_get_arch(abfd) == bfd_arch_ns32k);
  83   switch (bfd_get_mach(abfd)) {
  84   case 32032:
  85     N_SET_MACHTYPE (*execp, M_NS32032);
  86     break;
  87   case 32532:
  88   default:
  89     N_SET_MACHTYPE (*execp, M_NS32532);
  90     break;
  91   }
  92   N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags);
  93
  94   WRITE_HEADERS(abfd, execp);
  95
  96   return true;
  97 }
  98
  99 #define MY_write_object_contents MY(write_object_contents)
 100
 101 #include "aout-target.h"