205 lines
6.2 KiB
C
205 lines
6.2 KiB
C
/* Operating system specific defines to be used when targeting GCC for
|
|
hosting on Windows NT 3.x, using a unix style C library and tools.
|
|
|
|
This is different to the winnt.h file, since that is used
|
|
to build GCC for use with a windows style library and tool
|
|
set, winnt.h uses the Microsoft tools to do that.
|
|
|
|
Copyright (C) 1995 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. */
|
|
|
|
|
|
#define YES_UNDERSCORES
|
|
|
|
#include "i386/gas.h"
|
|
|
|
|
|
#ifdef CPP_PREDEFINES
|
|
#undef CPP_PREDEFINES
|
|
#endif
|
|
|
|
#define CPP_PREDEFINES "-Di386 -D__WIN32__ \
|
|
-DPOSIX -D__CYGWIN32__ -DWINNT -D_X86_=1 -D__STDC__=1\
|
|
-D__stdcall=__attribute__((__stdcall__)) \
|
|
-D__cdecl=__attribute__((__cdecl__)) \
|
|
-Asystem(winnt) -Acpu(i386) -Amachine(i386)"
|
|
|
|
/* We have to dynamic link to get to the system dlls,
|
|
and I've put all of libc and libm and the unix stuff into
|
|
cygwin.dll, the import library is called 'libcygwin.a' */
|
|
|
|
#undef LIB_SPEC
|
|
#define LIB_SPEC "-lcygwin"
|
|
|
|
/* No need for libgcc, it's in the shared library. */
|
|
#undef LIBGCC_SPEC
|
|
#define LIBGCC_SPEC ""
|
|
|
|
#undef STARTFILE_SPEC
|
|
#define STARTFILE_SPEC "%{!:crt0%O%s}"
|
|
|
|
#define SIZE_TYPE "unsigned int"
|
|
#define PTRDIFF_TYPE "int"
|
|
#define WCHAR_UNSIGNED 1
|
|
#define WCHAR_TYPE_SIZE 16
|
|
#define WCHAR_TYPE "short unsigned int"
|
|
#undef LONG_DOUBLE_TYPE_SIZE
|
|
#define LONG_DOUBLE_TYPE_SIZE 64
|
|
#define HAVE_ATEXIT 1
|
|
|
|
#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)
|
|
|
|
#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
|
|
do { \
|
|
dtor_section (); \
|
|
fprintf (FILE, "%s\t", ASM_LONG); \
|
|
assemble_name (FILE, NAME); \
|
|
fprintf (FILE, "\n"); \
|
|
} while (0)
|
|
|
|
/* Define this macro if references to a symbol must be treated
|
|
differently depending on something about the variable or
|
|
function named by the symbol (such as what section it is in).
|
|
|
|
On i386, if using PIC, mark a SYMBOL_REF for a non-global symbol
|
|
so that we may access it directly in the GOT.
|
|
|
|
On i386 running Windows NT, modify the assembler name with a suffix
|
|
consisting of an atsign (@) followed by string of digits that represents
|
|
the number of bytes of arguments passed to the function, if it has the
|
|
attribute STDCALL. */
|
|
|
|
#ifdef ENCODE_SECTION_INFO
|
|
#undef ENCODE_SECTION_INFO
|
|
#define ENCODE_SECTION_INFO(DECL) \
|
|
do \
|
|
{ \
|
|
if (flag_pic) \
|
|
{ \
|
|
rtx rtl = (TREE_CODE_CLASS (TREE_CODE (DECL)) != 'd' \
|
|
? TREE_CST_RTL (DECL) : DECL_RTL (DECL)); \
|
|
SYMBOL_REF_FLAG (XEXP (rtl, 0)) \
|
|
= (TREE_CODE_CLASS (TREE_CODE (DECL)) != 'd' \
|
|
|| ! TREE_PUBLIC (DECL)); \
|
|
} \
|
|
if (TREE_CODE (DECL) == FUNCTION_DECL) \
|
|
if (lookup_attribute ("stdcall", \
|
|
TYPE_ATTRIBUTES (TREE_TYPE (DECL)))) \
|
|
XEXP (DECL_RTL (DECL), 0) = \
|
|
gen_rtx (SYMBOL_REF, Pmode, gen_stdcall_suffix (DECL)); \
|
|
} \
|
|
while (0)
|
|
#endif
|
|
|
|
/* Emit code to check the stack when allocating more that 20
|
|
bytes in one go. */
|
|
|
|
#define CHECK_STACK_LIMIT 20
|
|
|
|
|
|
|
|
/* By default, target has a 80387, uses IEEE compatible arithmetic,
|
|
and returns float values in the 387 and needs stack probes */
|
|
#undef TARGET_DEFAULT
|
|
|
|
#define TARGET_DEFAULT \
|
|
(MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_STACK_PROBE)
|
|
|
|
#define DBX_DEBUGGING_INFO
|
|
#define SDB_DEBUGGING_INFO
|
|
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
|
|
|
|
|
|
/* A C statement to output something to the assembler file to switch to section
|
|
NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
|
|
NULL_TREE. Some target formats do not support arbitrary sections. Do not
|
|
define this macro in such cases. */
|
|
|
|
#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME) \
|
|
fprintf (FILE, "\t.section %s\n", NAME)
|
|
|
|
#undef ASM_OUTPUT_SOURCE_LINE
|
|
#define ASM_OUTPUT_SOURCE_LINE(file, line) \
|
|
do \
|
|
{ \
|
|
static int sym_lineno = 1; \
|
|
fprintf (file, "\t.stabn 68,0,%d,.LM%d-", \
|
|
line, sym_lineno); \
|
|
assemble_name (file, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
|
|
fprintf (file, "\n.LM%d:\n", sym_lineno); \
|
|
sym_lineno += 1; \
|
|
} \
|
|
while (0)
|
|
|
|
/* Generate a blank trailing N_SO to mark the end of the .o file, since
|
|
we can't depend upon the linker to mark .o file boundaries with
|
|
embedded stabs. */
|
|
|
|
#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \
|
|
fprintf (FILE, \
|
|
"\t.text\n\t.stabs \"\",%d,0,0,Letext\nLetext:\n", N_SO)
|
|
|
|
/* Make LBRAC and RBRAC addresses relative to the start of the
|
|
function. The native Solaris stabs debugging format works this
|
|
way, gdb expects it, and it reduces the number of relocation
|
|
entries. */
|
|
|
|
#define DBX_BLOCKS_FUNCTION_RELATIVE 1
|
|
|
|
/* In order for relative line numbers to work, we must output the
|
|
stabs entry for the function name first. */
|
|
|
|
#define DBX_FUNCTION_FIRST
|