189 lines
6.1 KiB
C
189 lines
6.1 KiB
C
/* Configuration for an i386 running MS-DOS with DJGPP.
|
|
Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2004, 2005
|
|
Free Software Foundation, Inc.
|
|
|
|
This file is part of GCC.
|
|
|
|
GCC 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.
|
|
|
|
GCC 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 GCC; see the file COPYING. If not, write to
|
|
the Free Software Foundation, 51 Franklin Street, Fifth Floor,
|
|
Boston, MA 02110-1301, USA. */
|
|
|
|
/* Support generation of DWARF2 debugging info. */
|
|
#define DWARF2_DEBUGGING_INFO 1
|
|
|
|
/* Don't assume anything about the header files. */
|
|
#define NO_IMPLICIT_EXTERN_C
|
|
|
|
#define HANDLE_SYSV_PRAGMA 1
|
|
|
|
/* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop). */
|
|
#define HANDLE_PRAGMA_PACK_PUSH_POP 1
|
|
|
|
/* If defined, a C expression whose value is a string containing the
|
|
assembler operation to identify the following data as
|
|
uninitialized global data. If not defined, and neither
|
|
`ASM_OUTPUT_BSS' nor `ASM_OUTPUT_ALIGNED_BSS' are defined,
|
|
uninitialized global data will be output in the data section if
|
|
`-fno-common' is passed, otherwise `ASM_OUTPUT_COMMON' will be
|
|
used. */
|
|
#undef BSS_SECTION_ASM_OP
|
|
#define BSS_SECTION_ASM_OP "\t.section\t.bss"
|
|
|
|
/* Define the name of the .data section. */
|
|
#undef DATA_SECTION_ASM_OP
|
|
#define DATA_SECTION_ASM_OP "\t.section .data"
|
|
|
|
/* Define the name of the .ident op. */
|
|
#undef IDENT_ASM_OP
|
|
#define IDENT_ASM_OP "\t.ident\t"
|
|
|
|
/* Enable alias attribute support. */
|
|
#ifndef SET_ASM_OP
|
|
#define SET_ASM_OP "\t.set\t"
|
|
#endif
|
|
|
|
/* Define the name of the .text section. */
|
|
#undef TEXT_SECTION_ASM_OP
|
|
#define TEXT_SECTION_ASM_OP "\t.section .text"
|
|
|
|
/* Define standard DJGPP installation paths. */
|
|
/* We override default /usr or /usr/local part with /dev/env/DJDIR which */
|
|
/* points to actual DJGPP installation directory. */
|
|
|
|
/* Standard include directory */
|
|
#undef STANDARD_INCLUDE_DIR
|
|
#define STANDARD_INCLUDE_DIR "/dev/env/DJDIR/include/"
|
|
|
|
/* Search for as.exe and ld.exe in DJGPP's binary directory. */
|
|
#undef MD_EXEC_PREFIX
|
|
#define MD_EXEC_PREFIX "/dev/env/DJDIR/bin/"
|
|
|
|
/* Standard DJGPP library and startup files */
|
|
#undef MD_STARTFILE_PREFIX
|
|
#define MD_STARTFILE_PREFIX "/dev/env/DJDIR/lib/"
|
|
|
|
/* 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] == ':')))
|
|
|
|
#define TARGET_OS_CPP_BUILTINS() \
|
|
do \
|
|
{ \
|
|
builtin_define_std ("MSDOS"); \
|
|
builtin_define_std ("GO32"); \
|
|
builtin_assert ("system=msdos"); \
|
|
} \
|
|
while (0)
|
|
|
|
/* Include <sys/version.h> so __DJGPP__ and __DJGPP_MINOR__ are defined. */
|
|
#undef CPP_SPEC
|
|
#define CPP_SPEC "-remap %{posix:-D_POSIX_SOURCE} \
|
|
-imacros %s../include/sys/version.h"
|
|
|
|
/* 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
|
|
|
|
/* Switch into a generic section. */
|
|
#define TARGET_ASM_NAMED_SECTION default_coff_asm_named_section
|
|
|
|
/* 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)
|
|
|
|
/* This is how to output a global symbol in the BSS section. */
|
|
#undef ASM_OUTPUT_ALIGNED_BSS
|
|
#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
|
|
asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
|
|
|
|
/* This is how to tell assembler that a symbol is weak */
|
|
#undef ASM_WEAKEN_LABEL
|
|
#define ASM_WEAKEN_LABEL(FILE,NAME) \
|
|
do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
|
|
fputc ('\n', FILE); } while (0)
|
|
|
|
/* djgpp automatically calls its own version of __main, so don't define one
|
|
in libgcc, nor call one in main(). */
|
|
#define HAS_INIT_SECTION
|
|
|
|
/* Definitions for types and sizes. Wide characters are 16-bits long so
|
|
Win32 compiler add-ons will be wide character compatible. */
|
|
#undef WCHAR_TYPE_SIZE
|
|
#define WCHAR_TYPE_SIZE 16
|
|
|
|
#undef WCHAR_TYPE
|
|
#define WCHAR_TYPE "short unsigned int"
|
|
|
|
#undef WINT_TYPE
|
|
#define WINT_TYPE "int"
|
|
|
|
#undef SIZE_TYPE
|
|
#define SIZE_TYPE "long unsigned int"
|
|
|
|
#undef PTRDIFF_TYPE
|
|
#define PTRDIFF_TYPE "int"
|
|
|
|
/* Used to be defined in xm-djgpp.h, but moved here for cross-compilers. */
|
|
#define LIBSTDCXX "-lstdcxx"
|
|
|
|
#define TARGET_VERSION fprintf (stderr, " (80386, MS-DOS DJGPP)");
|
|
|
|
/* Warn that -mbnu210 is now obsolete. */
|
|
#undef SUBTARGET_OVERRIDE_OPTIONS
|
|
#define SUBTARGET_OVERRIDE_OPTIONS \
|
|
do \
|
|
{ \
|
|
if (TARGET_BNU210) \
|
|
{ \
|
|
warning (0, "-mbnu210 is ignored (option is obsolete)"); \
|
|
} \
|
|
} \
|
|
while (0)
|
|
|
|
/* Support for C++ templates. */
|
|
#undef MAKE_DECL_ONE_ONLY
|
|
#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
|