gcc/config/i386/go32.h

   1 /* Configuration for an i386 running MS-DOS with djgpp/go32.  */
   2
   3 /* Don't assume anything about the header files. */
   4 #define NO_IMPLICIT_EXTERN_C
   5
   6 #define HANDLE_SYSV_PRAGMA
   7
   8 #define YES_UNDERSCORES
   9
  10 #include "i386/gas.h"
  11
  12 /* Value is the number of bytes of arguments automatically
  13    popped when returning from a subroutine call.
  14    FUNDECL is the declaration node of the function (as a tree),
  15    FUNTYPE is the data type of the function (as a tree),
  16    or for a library call it is an identifier node for the subroutine name.
  17    SIZE is the number of bytes of arguments passed on the stack.
  18
  19    This only happens if the function declaration has the STDCALL attribute and
  20    the number of arguments is not variable */
  21
  22 #undef RETURN_POPS_ARGS
  23 #define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) \
  24   ( \
  25    TREE_CODE (FUNTYPE) == IDENTIFIER_NODE \
  26    ? \
  27      0 \
  28    : \
  29      ( \
  30       ((FUNDECL && (TREE_CODE_CLASS (TREE_CODE (FUNDECL)) == 'd') \
  31         ? \
  32           lookup_attribute ("stdcall", \
  33                             DECL_MACHINE_ATTRIBUTES (FUNDECL)) != NULL_TREE \
  34         : 0 \
  35        ) \
  36       ) \
  37       && \
  38          ( \
  39           TYPE_ARG_TYPES (FUNTYPE) == 0 \
  40           || \
  41             TREE_VALUE (tree_last (TYPE_ARG_TYPES (FUNTYPE))) \
  42             == void_type_node \
  43          ) \
  44      ) \
  45      ? \
  46        (SIZE) \
  47      : \
  48        (aggregate_value_p (TREE_TYPE (FUNTYPE))) \
  49        ? \
  50          GET_MODE_SIZE (Pmode) \
  51        : \
  52          0 \
  53   )
  54
  55 /* Value is 1 if the declaration has either of the attributes: CDECL or
  56    STDCALL and 0 otherwise */
  57
  58 #define VALID_MACHINE_DECL_ATTRIBUTE(DECL, ATTR, NAME, ARGS) \
  59   (((TREE_CODE(DECL) == FUNCTION_DECL) \
  60     || (TREE_CODE(DECL) == FIELD_DECL) \
  61     || (TREE_CODE(DECL) == TYPE_DECL)) \
  62    && (is_attribute_p ("stdcall", (NAME)) \
  63        || is_attribute_p ("cdecl", (NAME))) \
  64    && (ARGS) == NULL)
  65
  66 #ifdef CPP_PREDEFINES
  67 #undef CPP_PREDEFINES
  68 #endif
  69 #define CPP_PREDEFINES "-Dunix -Di386 -DGO32 -DMSDOS \
  70   -Asystem(unix) -Asystem(msdos) -Acpu(i386) -Amachine(i386)"
  71
  72 #undef EXTRA_SECTIONS
  73 #define EXTRA_SECTIONS in_ctor, in_dtor
  74
  75 #undef EXTRA_SECTION_FUNCTIONS
  76 #define EXTRA_SECTION_FUNCTIONS                                 \
  77   CTOR_SECTION_FUNCTION                                         \
  78   DTOR_SECTION_FUNCTION
  79
  80 #define CTOR_SECTION_FUNCTION                                   \
  81 void                                                            \
  82 ctor_section ()                                                 \
  83 {                                                               \
  84   if (in_section != in_ctor)                                    \
  85     {                                                           \
  86       fprintf (asm_out_file, "\t.section .ctor\n");             \
  87       in_section = in_ctor;                                     \
  88     }                                                           \
  89 }
  90
  91 #define DTOR_SECTION_FUNCTION                                   \
  92 void                                                            \
  93 dtor_section ()                                                 \
  94 {                                                               \
  95   if (in_section != in_dtor)                                    \
  96     {                                                           \
  97       fprintf (asm_out_file, "\t.section .dtor\n");             \
  98       in_section = in_dtor;                                     \
  99     }                                                           \
 100 }
 101
 102 #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME)       \
 103   do {                                          \
 104     ctor_section ();                            \
 105     fprintf (FILE, "%s\t", ASM_LONG);           \
 106     assemble_name (FILE, NAME);                 \
 107     fprintf (FILE, "\n");                       \
 108   } while (0)
 109
 110 #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME)        \
 111   do {                                          \
 112     dtor_section ();                            \
 113     fprintf (FILE, "%s\t", ASM_LONG);           \
 114     assemble_name (FILE, NAME);                 \
 115     fprintf (FILE, "\n");                       \
 116   } while (0)
 117
 118