128 lines
3.7 KiB
C
128 lines
3.7 KiB
C
/* Configuration for an i386 running MS-DOS with djgpp/go32. */
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#define DBX_DEBUGGING_INFO /* support for stabs debugging info */
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#define PREFERRED_DEBUGGING_TYPE SDB_DEBUG /* leave sdb as default */
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#define NO_STAB_H /* DJGPP has no stab.h */
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#if 0 /* enable this, if '-g' should select stabs debugging */
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#undef PREFERRED_DEBUGGING_TYPE
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#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
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#endif
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/* Don't assume anything about the header files. */
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#define NO_IMPLICIT_EXTERN_C
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#define HANDLE_SYSV_PRAGMA
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#define YES_UNDERSCORES
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#include "i386/gas.h"
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#ifdef CPP_PREDEFINES
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#undef CPP_PREDEFINES
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#endif
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#define CPP_PREDEFINES "-Dunix -Di386 -DGO32 -DMSDOS \
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-Asystem(unix) -Asystem(msdos) -Acpu(i386) -Amachine(i386)"
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#undef EXTRA_SECTIONS
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#define EXTRA_SECTIONS in_ctor, in_dtor
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#undef EXTRA_SECTION_FUNCTIONS
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#define EXTRA_SECTION_FUNCTIONS \
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CTOR_SECTION_FUNCTION \
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DTOR_SECTION_FUNCTION
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#define CTOR_SECTION_FUNCTION \
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void \
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ctor_section () \
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{ \
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if (in_section != in_ctor) \
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{ \
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fprintf (asm_out_file, "\t.section .ctor\n"); \
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in_section = in_ctor; \
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} \
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}
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#define DTOR_SECTION_FUNCTION \
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void \
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dtor_section () \
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{ \
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if (in_section != in_dtor) \
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{ \
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fprintf (asm_out_file, "\t.section .dtor\n"); \
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in_section = in_dtor; \
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} \
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}
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#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
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do { \
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ctor_section (); \
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fprintf (FILE, "%s\t", ASM_LONG); \
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assemble_name (FILE, NAME); \
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fprintf (FILE, "\n"); \
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} while (0)
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/* Allow (eg) __attribute__((section "locked")) to work */
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#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME)\
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do { \
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fprintf (FILE, "\t.section %s\n", NAME); \
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} while (0)
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do { \
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dtor_section (); \
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fprintf (FILE, "%s\t", ASM_LONG); \
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assemble_name (FILE, NAME); \
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fprintf (FILE, "\n"); \
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} while (0)
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/* Output at beginning of assembler file. */
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/* The .file command should always begin the output. */
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/* Use the main_input_filename instead of dump_base_name */
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#undef ASM_FILE_START
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#define ASM_FILE_START(FILE) \
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do { \
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output_file_directive (FILE, main_input_filename); \
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} while (0)
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/* Be function-relative for block and source line stab directives. */
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#define DBX_BLOCKS_FUNCTION_RELATIVE 1
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/* but, to make this work, functions must appear prior to line info */
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#define DBX_FUNCTION_FIRST
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/* Allow (eg) __attribute__((section "locked")) to work */
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/* Generate a blank trailing N_SO to mark the end of the .o file, since
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we can't depend upon the linker to mark .o file boundaries with
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embedded stabs. */
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#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \
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fprintf (FILE, \
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"\t.text\n\t.stabs \"\",%d,0,0,Letext\nLetext:\n", N_SO)
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#undef ASM_OUTPUT_SOURCE_LINE
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#define ASM_OUTPUT_SOURCE_LINE(file, line) \
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if ( write_symbols == DBX_DEBUG ) \
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{ static int sym_lineno = 1; \
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fprintf (file, ".stabn 68,0,%d,.LM%d-", \
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line, sym_lineno); \
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assemble_name (file, \
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XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
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fprintf (file, "\n.LM%d:\n", sym_lineno); \
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sym_lineno += 1; } \
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else { \
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fprintf (file, "\t.ln\t%d\n", \
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((sdb_begin_function_line > -1) \
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? line - sdb_begin_function_line : 1)); }
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#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME)\
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do { \
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fprintf (FILE, "\t.section %s\n", NAME); \
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} while (0)
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/* This is how to output an assembler line
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that says to advance the location counter
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to a multiple of 2**LOG bytes. */
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#undef ASM_OUTPUT_ALIGN
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#define ASM_OUTPUT_ALIGN(FILE,LOG) \
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if ((LOG) != 0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG))
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