diff options
Diffstat (limited to 'contrib/gcc/config/i386/djgpp.h')
| -rw-r--r-- | contrib/gcc/config/i386/djgpp.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/contrib/gcc/config/i386/djgpp.h b/contrib/gcc/config/i386/djgpp.h new file mode 100644 index 0000000..5727b0a --- /dev/null +++ b/contrib/gcc/config/i386/djgpp.h @@ -0,0 +1,161 @@ +/* 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" + +/* Enable alias attribute support. */ +#ifndef SET_ASM_OP +#define SET_ASM_OP "\t.set" +#endif + +/* 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} }}}}}" + +/* Always just link in 'libc.a'. */ +#undef LIB_SPEC +#define LIB_SPEC "-lc" + +/* Pick the right startup code depending on the -pg flag. */ +#undef STARTFILE_SPEC +#define STARTFILE_SPEC "%{pg:gcrt0.o%s}%{!pg:crt0.o%s}" + +/* 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 |
