| /* Configuration for an i386 running MS-DOS with DJGPP. |
| Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc. |
| |
| This file is part of GNU CC. |
| |
| GNU CC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU CC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU CC; see the file COPYING. If not, write to |
| the Free Software Foundation, 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| |
| #include "dbxcoff.h" |
| |
| /* Don't assume anything about the header files. */ |
| #define NO_IMPLICIT_EXTERN_C |
| |
| #define HANDLE_SYSV_PRAGMA |
| |
| /* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop). */ |
| #define HANDLE_PRAGMA_PACK_PUSH_POP 1 |
| |
| #define YES_UNDERSCORES |
| |
| #include "i386/gas.h" |
| |
| /* Search for as.exe and ld.exe in DJGPP's binary directory. */ |
| #define MD_EXEC_PREFIX "$DJDIR/bin/" |
| |
| /* Correctly handle absolute filename detection in cp/xref.c */ |
| #define FILE_NAME_ABSOLUTE_P(NAME) \ |
| (((NAME)[0] == '/') || ((NAME)[0] == '\\') || \ |
| (((NAME)[0] >= 'A') && ((NAME)[0] <= 'z') && ((NAME)[1] == ':'))) |
| |
| #ifdef CPP_PREDEFINES |
| #undef CPP_PREDEFINES |
| #endif |
| #define CPP_PREDEFINES "-Dunix -Di386 -DGO32 -DDJGPP=2 -DMSDOS \ |
| -Asystem(unix) -Asystem(msdos) -Acpu(i386) -Amachine(i386)" |
| |
| /* We need to override link_command_spec in gcc.c so support -Tdjgpp.djl. |
| This cannot be done in LINK_SPECS as that LINK_SPECS is processed |
| before library search directories are known by the linker. |
| This avoids problems when specs file is not available. An alternate way, |
| suggested by Robert Hoehne, is to use SUBTARGET_EXTRA_SPECS instead. |
| */ |
| |
| #undef LINK_COMMAND_SPEC |
| #define LINK_COMMAND_SPEC \ |
| "%{!fsyntax-only: \ |
| %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \ |
| \t%{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\ |
| \t%{!A:%{!nostdlib:%{!nostartfiles:%S}}}\ |
| \t%{static:} %{L*} %D %o\ |
| \t%{!nostdlib:%{!nodefaultlibs:%G %L %G}}\ |
| \t%{!A:%{!nostdlib:%{!nostartfiles:%E}}}\ |
| \t-Tdjgpp.djl %{T*}}}}}}}\n\ |
| %{!c:%{!M:%{!MM:%{!E:%{!S:stubify %{v} %{o*:%*} %{!o*:a.out} }}}}}" |
| |
| /* Make sure that gcc will not look for .h files in /usr/local/include |
| unless user explicitly requests it. */ |
| #undef LOCAL_INCLUDE_DIR |
| |
| #undef EXTRA_SECTIONS |
| #define EXTRA_SECTIONS in_ctor, in_dtor |
| |
| #undef EXTRA_SECTION_FUNCTIONS |
| #define EXTRA_SECTION_FUNCTIONS \ |
| CTOR_SECTION_FUNCTION \ |
| DTOR_SECTION_FUNCTION |
| |
| #define CTOR_SECTION_FUNCTION \ |
| void \ |
| ctor_section () \ |
| { \ |
| if (in_section != in_ctor) \ |
| { \ |
| fprintf (asm_out_file, "\t.section .ctor\n"); \ |
| in_section = in_ctor; \ |
| } \ |
| } |
| |
| #define DTOR_SECTION_FUNCTION \ |
| void \ |
| dtor_section () \ |
| { \ |
| if (in_section != in_dtor) \ |
| { \ |
| fprintf (asm_out_file, "\t.section .dtor\n"); \ |
| in_section = in_dtor; \ |
| } \ |
| } |
| |
| #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \ |
| do { \ |
| ctor_section (); \ |
| fprintf (FILE, "%s\t", ASM_LONG); \ |
| assemble_name (FILE, NAME); \ |
| fprintf (FILE, "\n"); \ |
| } while (0) |
| |
| /* Allow (eg) __attribute__((section "locked")) to work */ |
| #define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME, RELOC)\ |
| do { \ |
| fprintf (FILE, "\t.section %s\n", NAME); \ |
| } while (0) |
| |
| #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \ |
| do { \ |
| dtor_section (); \ |
| fprintf (FILE, "%s\t", ASM_LONG); \ |
| assemble_name (FILE, NAME); \ |
| fprintf (FILE, "\n"); \ |
| } while (0) |
| |
| /* Output at beginning of assembler file. */ |
| /* The .file command should always begin the output. */ |
| |
| #undef ASM_FILE_START |
| #define ASM_FILE_START(FILE) \ |
| do { \ |
| output_file_directive (FILE, main_input_filename); \ |
| } while (0) |
| |
| /* This is how to output an assembler line |
| that says to advance the location counter |
| to a multiple of 2**LOG bytes. */ |
| |
| #undef ASM_OUTPUT_ALIGN |
| #define ASM_OUTPUT_ALIGN(FILE,LOG) \ |
| if ((LOG) != 0) fprintf ((FILE), "\t.p2align %d\n", LOG) |
| |
| /* djgpp has atexit (). */ |
| #undef HAVE_ATEXIT |
| #define HAVE_ATEXIT |
| |
| /* djgpp automatically calls its own version of __main, so don't define one |
| in libgcc, nor call one in main(). */ |
| #define HAS_INIT_SECTION |