gcc/config/i386/go32.h

   1 /* Configuration for an i386 running MS-DOS with djgpp/go32.  */
   2
   3 #include "dbxcoff.h"
   4
   5 #define NO_STAB_H /* DJGPP has no stab.h */
   6
   7 /* Don't assume anything about the header files. */
   8 #define NO_IMPLICIT_EXTERN_C
   9
  10 #define HANDLE_SYSV_PRAGMA
  11
  12 #define YES_UNDERSCORES
  13
  14 #include "i386/gas.h"
  15
  16 #ifdef CPP_PREDEFINES
  17 #undef CPP_PREDEFINES
  18 #endif
  19 #define CPP_PREDEFINES "-Dunix -Di386 -DGO32 -DMSDOS \
  20   -Asystem(unix) -Asystem(msdos) -Acpu(i386) -Amachine(i386)"
  21
  22 #undef EXTRA_SECTIONS
  23 #define EXTRA_SECTIONS in_ctor, in_dtor
  24
  25 #undef EXTRA_SECTION_FUNCTIONS
  26 #define EXTRA_SECTION_FUNCTIONS                                 \
  27   CTOR_SECTION_FUNCTION                                         \
  28   DTOR_SECTION_FUNCTION
  29
  30 #define CTOR_SECTION_FUNCTION                                   \
  31 void                                                            \
  32 ctor_section ()                                                 \
  33 {                                                               \
  34   if (in_section != in_ctor)                                    \
  35     {                                                           \
  36       fprintf (asm_out_file, "\t.section .ctor\n");             \
  37       in_section = in_ctor;                                     \
  38     }                                                           \
  39 }
  40
  41 #define DTOR_SECTION_FUNCTION                                   \
  42 void                                                            \
  43 dtor_section ()                                                 \
  44 {                                                               \
  45   if (in_section != in_dtor)                                    \
  46     {                                                           \
  47       fprintf (asm_out_file, "\t.section .dtor\n");             \
  48       in_section = in_dtor;                                     \
  49     }                                                           \
  50 }
  51
  52 #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME)       \
  53   do {                                          \
  54     ctor_section ();                            \
  55     fprintf (FILE, "%s\t", ASM_LONG);           \
  56     assemble_name (FILE, NAME);                 \
  57     fprintf (FILE, "\n");                       \
  58   } while (0)
  59
  60 /* Allow (eg) __attribute__((section "locked")) to work */
  61 #define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME)\
  62   do {                                          \
  63     fprintf (FILE, "\t.section %s\n", NAME);    \
  64   } while (0)
  65
  66 #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME)        \
  67   do {                                          \
  68     dtor_section ();                            \
  69     fprintf (FILE, "%s\t", ASM_LONG);           \
  70     assemble_name (FILE, NAME);                 \
  71     fprintf (FILE, "\n");                       \
  72   } while (0)
  73
  74 /* Output at beginning of assembler file.  */
  75 /* The .file command should always begin the output.  */
  76 /* Use the main_input_filename instead of dump_base_name */
  77
  78 #undef ASM_FILE_START
  79 #define ASM_FILE_START(FILE)                                            \
  80   do {                                                                  \
  81         output_file_directive (FILE, main_input_filename);              \
  82   } while (0)
  83
  84 #define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME)\
  85   do {                                          \
  86     fprintf (FILE, "\t.section %s\n", NAME);    \
  87   } while (0)
  88
  89 /* This is how to output an assembler line
  90    that says to advance the location counter
  91    to a multiple of 2**LOG bytes.  */
  92
  93 #undef ASM_OUTPUT_ALIGN
  94 #define ASM_OUTPUT_ALIGN(FILE,LOG) \
  95   if ((LOG) != 0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG))