467 lines
16 KiB
C
467 lines
16 KiB
C
/* Operating system specific defines to be used when targeting GCC for
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hosting on Windows32, using a Unix style C library and tools.
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Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
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Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#define DBX_DEBUGGING_INFO 1
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#define SDB_DEBUGGING_INFO 1
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#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
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#define TARGET_VERSION fprintf (stderr, " (x86 Cygwin)");
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#define TARGET_EXECUTABLE_SUFFIX ".exe"
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#include <stdio.h>
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#include "i386/i386.h"
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#include "i386/unix.h"
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#include "i386/bsd.h"
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#include "i386/gas.h"
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#include "dbxcoff.h"
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/* Masks for subtarget switches used by other files. */
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#define MASK_NOP_FUN_DLLIMPORT 0x08000000 /* Ignore dllimport for functions */
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/* Used in winnt.c. */
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#define TARGET_NOP_FUN_DLLIMPORT (target_flags & MASK_NOP_FUN_DLLIMPORT)
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#undef SUBTARGET_SWITCHES
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#define SUBTARGET_SWITCHES \
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{ "cygwin", 0, N_("Use the Cygwin interface") }, \
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{ "no-cygwin", 0, N_("Use the Mingw32 interface") }, \
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{ "windows", 0, N_("Create GUI application") }, \
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{ "no-win32", 0, N_("Don't set Windows defines") }, \
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{ "win32", 0, N_("Set Windows defines") }, \
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{ "console", 0, N_("Create console application") },\
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{ "dll", 0, N_("Generate code for a DLL") }, \
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{ "nop-fun-dllimport", MASK_NOP_FUN_DLLIMPORT, \
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N_("Ignore dllimport for functions") }, \
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{ "no-nop-fun-dllimport", -MASK_NOP_FUN_DLLIMPORT, "" }, \
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{ "threads", 0, N_("Use Mingw-specific thread support") },
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#define MAYBE_UWIN_CPP_BUILTINS() /* Nothing. */
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#define TARGET_OS_CPP_BUILTINS() \
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do \
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{ \
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builtin_define ("_X86_=1"); \
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builtin_assert ("system=winnt"); \
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builtin_define ("__stdcall=__attribute__((__stdcall__))"); \
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builtin_define ("__cdecl=__attribute__((__cdecl__))"); \
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builtin_define ("__declspec(x)=__attribute__((x))"); \
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if (!flag_iso) \
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{ \
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builtin_define ("_stdcall=__attribute__((__stdcall__))"); \
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builtin_define ("_cdecl=__attribute__((__cdecl__))"); \
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} \
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MAYBE_UWIN_CPP_BUILTINS (); \
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} \
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while (0)
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#ifdef CROSS_COMPILE
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#define CYGWIN_INCLUDES "%{!nostdinc:-idirafter " CYGWIN_CROSS_DIR "/include}"
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#define W32API_INC "%{!nostdinc:-idirafter " CYGWIN_CROSS_DIR "/include/w32api}"
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#define W32API_LIB "-L" CYGWIN_CROSS_DIR "/lib/w32api/"
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#define CYGWIN_LIB CYGWIN_CROSS_DIR "/lib"
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#define MINGW_LIBS "-L" CYGWIN_CROSS_DIR "/lib/mingw"
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#define MINGW_INCLUDES "%{!nostdinc:-isystem " CYGWIN_CROSS_DIR "/include/mingw/g++-3 "\
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"-isystem " CYGWIN_CROSS_DIR "/include/mingw/g++ "\
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"-idirafter " CYGWIN_CROSS_DIR "/include/mingw}"
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#else
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#define CYGWIN_INCLUDES "%{!nostdinc:-isystem /usr/local/include "\
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"-idirafter " CYGWIN_CROSS_DIR "/include "\
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"-idirafter /usr/include}"
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#define W32API_INC "%{!nostdinc:"\
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"-idirafter " CYGWIN_CROSS_DIR "/include/w32api "\
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"-idirafter /usr/include/w32api}"
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#define W32API_LIB "-L" CYGWIN_CROSS_DIR "/lib/w32api/ -L/usr/lib/w32api/"
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#define CYGWIN_LIB "/usr/lib"
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#define MINGW_LIBS "-L/usr/local/lib/mingw -L/usr/lib/mingw"
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#define MINGW_INCLUDES "%{!nostdinc:-isystem /usr/include/mingw/g++-3 "\
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"-isystem /usr/include/mingw/g++ "\
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"-isystem /usr/local/include/mingw "\
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"-idirafter " CYGWIN_CROSS_DIR "/include/mingw "\
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"-idirafter /usr/include/mingw}"
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#endif
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/* Get tree.c to declare a target-specific specialization of
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merge_decl_attributes. */
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#define TARGET_DLLIMPORT_DECL_ATTRIBUTES
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/* Support the __declspec keyword by turning them into attributes.
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We currently only support: dllimport and dllexport.
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Note that the current way we do this may result in a collision with
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predefined attributes later on. This can be solved by using one attribute,
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say __declspec__, and passing args to it. The problem with that approach
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is that args are not accumulated: each new appearance would clobber any
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existing args. */
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#undef CPP_SPEC
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#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} \
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%{mno-win32:%{mno-cygwin: %emno-cygwin and mno-win32 are not compatible}} \
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%{mno-cygwin:-D__MSVCRT__ -D__MINGW32__ %{mthreads:-D_MT} "\
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MINGW_INCLUDES "} \
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%{!mno-cygwin:-D__CYGWIN32__ -D__CYGWIN__ %{!ansi:-Dunix} -D__unix__ -D__unix "\
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CYGWIN_INCLUDES "}\
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%{mwin32|mno-cygwin:-DWIN32 -D_WIN32 -D__WIN32 -D__WIN32__ %{!ansi:-DWINNT}}\
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%{!mno-win32:" W32API_INC "}\
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"
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC "\
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%{shared|mdll: %{mno-cygwin:" MINGW_LIBS " dllcrt2%O%s}}\
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%{!shared: %{!mdll: %{!mno-cygwin:crt0%O%s} %{mno-cygwin:" MINGW_LIBS " crt2%O%s}\
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%{pg:gcrt0%O%s}}}\
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"
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/* Normally, -lgcc is not needed since everything in it is in the DLL, but we
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want to allow things to be added to it when installing new versions of
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GCC without making a new CYGWIN.DLL, so we leave it. Profiling is handled
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by calling the init function from the prologue. */
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#undef LIBGCC_SPEC
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#define LIBGCC_SPEC "%{mno-cygwin: %{mthreads:-lmingwthrd} -lmingw32} \
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-lgcc %{mno-cygwin:-lmoldname -lmingwex -lmsvcrt}"
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/* This macro defines names of additional specifications to put in the specs
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that can be used in various specifications like CC1_SPEC. Its definition
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is an initializer with a subgrouping for each command option.
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Each subgrouping contains a string constant, that defines the
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specification name, and a string constant that used by the GNU CC driver
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program.
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Do not define this macro if it does not need to do anything. */
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#undef SUBTARGET_EXTRA_SPECS
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#define SUBTARGET_EXTRA_SPECS \
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{ "mingw_include_path", DEFAULT_TARGET_MACHINE }
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/* We have to dynamic link to get to the system DLLs. All of libc, libm and
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the Unix stuff is in cygwin.dll. The import library is called
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'libcygwin.a'. For Windows applications, include more libraries, but
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always include kernel32. We'd like to specific subsystem windows to
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ld, but that doesn't work just yet. */
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#undef LIB_SPEC
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#define LIB_SPEC "\
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%{pg:-lgmon} \
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%{!mno-cygwin:-lcygwin} \
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%{mno-cygwin:%{mthreads:-lmingwthrd} -lmingw32} \
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%{mwindows:-lgdi32 -lcomdlg32} \
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-luser32 -lkernel32 -ladvapi32 -lshell32"
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#define LINK_SPEC W32API_LIB "\
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%{mwindows:--subsystem windows} \
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%{mconsole:--subsystem console} \
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%{shared: %{mdll: %eshared and mdll are not compatible}} \
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%{shared: --shared} %{mdll:--dll} \
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%{static:-Bstatic} %{!static:-Bdynamic} \
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%{shared|mdll: -e \
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%{mno-cygwin:_DllMainCRTStartup@12} \
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%{!mno-cygwin:__cygwin_dll_entry@12}}\
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--dll-search-prefix=cyg"
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#undef MATH_LIBRARY
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#define MATH_LIBRARY ""
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#define SIZE_TYPE "unsigned int"
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#define PTRDIFF_TYPE "int"
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#define WCHAR_TYPE_SIZE 16
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#define WCHAR_TYPE "short unsigned int"
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/* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop). */
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#define HANDLE_PRAGMA_PACK_PUSH_POP 1
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union tree_node;
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#define TREE union tree_node *
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#undef EXTRA_SECTIONS
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#define EXTRA_SECTIONS in_drectve
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#undef EXTRA_SECTION_FUNCTIONS
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#define EXTRA_SECTION_FUNCTIONS \
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DRECTVE_SECTION_FUNCTION \
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SWITCH_TO_SECTION_FUNCTION
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#define DRECTVE_SECTION_FUNCTION \
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void \
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drectve_section () \
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{ \
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if (in_section != in_drectve) \
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{ \
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fprintf (asm_out_file, "%s\n", "\t.section .drectve\n"); \
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in_section = in_drectve; \
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} \
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}
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void drectve_section PARAMS ((void));
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/* Switch to SECTION (an `enum in_section').
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??? This facility should be provided by GCC proper.
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The problem is that we want to temporarily switch sections in
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ASM_DECLARE_OBJECT_NAME and then switch back to the original section
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afterwards. */
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#define SWITCH_TO_SECTION_FUNCTION \
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void switch_to_section PARAMS ((enum in_section, tree)); \
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void \
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switch_to_section (section, decl) \
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enum in_section section; \
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tree decl; \
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{ \
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switch (section) \
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{ \
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case in_text: text_section (); break; \
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case in_data: data_section (); break; \
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case in_named: named_section (decl, NULL, 0); break; \
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case in_drectve: drectve_section (); break; \
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default: abort (); break; \
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} \
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}
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/* Don't allow flag_pic to propagate since gas may produce invalid code
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otherwise. */
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#undef SUBTARGET_OVERRIDE_OPTIONS
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#define SUBTARGET_OVERRIDE_OPTIONS \
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do { \
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if (flag_pic) \
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{ \
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warning ("-f%s ignored for target (all code is position independent)",\
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(flag_pic > 1) ? "PIC" : "pic"); \
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flag_pic = 0; \
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} \
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} while (0) \
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/* Define this macro if references to a symbol must be treated
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differently depending on something about the variable or
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function named by the symbol (such as what section it is in).
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On i386 running Windows NT, modify the assembler name with a suffix
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consisting of an atsign (@) followed by string of digits that represents
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the number of bytes of arguments passed to the function, if it has the
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attribute STDCALL.
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In addition, we must mark dll symbols specially. Definitions of
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dllexport'd objects install some info in the .drectve section.
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References to dllimport'd objects are fetched indirectly via
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_imp__. If both are declared, dllexport overrides. This is also
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needed to implement one-only vtables: they go into their own
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section and we need to set DECL_SECTION_NAME so we do that here.
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Note that we can be called twice on the same decl. */
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#undef TARGET_ENCODE_SECTION_INFO
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#define TARGET_ENCODE_SECTION_INFO i386_pe_encode_section_info
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#undef TARGET_STRIP_NAME_ENCODING
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#define TARGET_STRIP_NAME_ENCODING i386_pe_strip_name_encoding_full
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/* Output a reference to a label. */
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#undef ASM_OUTPUT_LABELREF
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#define ASM_OUTPUT_LABELREF(STREAM, NAME) \
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fprintf (STREAM, "%s%s", USER_LABEL_PREFIX, \
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i386_pe_strip_name_encoding (NAME)) \
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/* Output a common block. */
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#undef ASM_OUTPUT_COMMON
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#define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED) \
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do { \
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if (i386_pe_dllexport_name_p (NAME)) \
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i386_pe_record_exported_symbol (NAME, 1); \
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if (! i386_pe_dllimport_name_p (NAME)) \
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{ \
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fprintf ((STREAM), "\t.comm\t"); \
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assemble_name ((STREAM), (NAME)); \
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fprintf ((STREAM), ", %d\t%s %d\n", \
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(ROUNDED), ASM_COMMENT_START, (SIZE)); \
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} \
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} while (0)
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/* Output the label for an initialized variable. */
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#undef ASM_DECLARE_OBJECT_NAME
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#define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL) \
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do { \
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if (i386_pe_dllexport_name_p (NAME)) \
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i386_pe_record_exported_symbol (NAME, 1); \
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ASM_OUTPUT_LABEL ((STREAM), (NAME)); \
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} while (0)
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/* Emit code to check the stack when allocating more that 4000
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bytes in one go. */
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#define CHECK_STACK_LIMIT 4000
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/* By default, target has a 80387, uses IEEE compatible arithmetic,
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returns float values in the 387 and needs stack probes.
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We also align doubles to 64-bits for MSVC default compatibility. */
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#undef TARGET_SUBTARGET_DEFAULT
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#define TARGET_SUBTARGET_DEFAULT \
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(MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_STACK_PROBE \
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| MASK_ALIGN_DOUBLE)
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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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/* Define this macro if in some cases global symbols from one translation
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unit may not be bound to undefined symbols in another translation unit
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without user intervention. For instance, under Microsoft Windows
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symbols must be explicitly imported from shared libraries (DLLs). */
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#define MULTIPLE_SYMBOL_SPACES
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extern void i386_pe_unique_section PARAMS ((TREE, int));
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#define TARGET_ASM_UNIQUE_SECTION i386_pe_unique_section
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#define SUPPORTS_ONE_ONLY 1
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/* Switch into a generic section. */
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#define TARGET_ASM_NAMED_SECTION i386_pe_asm_named_section
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/* Select attributes for named sections. */
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#define TARGET_SECTION_TYPE_FLAGS i386_pe_section_type_flags
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/* Write the extra assembler code needed to declare a function
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properly. If we are generating SDB debugging information, this
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will happen automatically, so we only need to handle other cases. */
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#undef ASM_DECLARE_FUNCTION_NAME
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#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
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do \
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{ \
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if (i386_pe_dllexport_name_p (NAME)) \
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i386_pe_record_exported_symbol (NAME, 0); \
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if (write_symbols != SDB_DEBUG) \
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i386_pe_declare_function_type (FILE, NAME, TREE_PUBLIC (DECL)); \
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ASM_OUTPUT_LABEL (FILE, NAME); \
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} \
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while (0)
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/* Add an external function to the list of functions to be declared at
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the end of the file. */
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#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \
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do \
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{ \
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if (TREE_CODE (DECL) == FUNCTION_DECL) \
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i386_pe_record_external_function (NAME); \
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} \
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while (0)
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/* Declare the type properly for any external libcall. */
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#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
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i386_pe_declare_function_type (FILE, XSTR (FUN, 0), 1)
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/* This says out to put a global symbol in the BSS section. */
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#undef ASM_OUTPUT_ALIGNED_BSS
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#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
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asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
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/* Output function declarations at the end of the file. */
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#undef ASM_FILE_END
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#define ASM_FILE_END(FILE) \
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i386_pe_asm_file_end (FILE)
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#undef ASM_COMMENT_START
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#define ASM_COMMENT_START " #"
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/* DWARF2 Unwinding doesn't work with exception handling yet. To make
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it work, we need to build a libgcc_s.dll, and dcrt0.o should be
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changed to call __register_frame_info/__deregister_frame_info. */
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#define DWARF2_UNWIND_INFO 0
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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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#undef PROFILE_HOOK
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#define PROFILE_HOOK(LABEL) \
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if (MAIN_NAME_P (DECL_NAME (current_function_decl))) \
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{ \
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emit_call_insn (gen_rtx (CALL, VOIDmode, \
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gen_rtx_MEM (FUNCTION_MODE, \
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gen_rtx_SYMBOL_REF (Pmode, "_monstartup")), \
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const0_rtx)); \
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}
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/* Java Native Interface (JNI) methods on Win32 are invoked using the
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stdcall calling convention. */
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#undef MODIFY_JNI_METHOD_CALL
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#define MODIFY_JNI_METHOD_CALL(MDECL) \
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build_type_attribute_variant ((MDECL), \
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build_tree_list (get_identifier ("stdcall"), \
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NULL))
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/* External function declarations. */
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extern void i386_pe_record_external_function PARAMS ((const char *));
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extern void i386_pe_declare_function_type PARAMS ((FILE *, const char *, int));
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extern void i386_pe_record_exported_symbol PARAMS ((const char *, int));
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extern void i386_pe_asm_file_end PARAMS ((FILE *));
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extern int i386_pe_dllexport_name_p PARAMS ((const char *));
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extern int i386_pe_dllimport_name_p PARAMS ((const char *));
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/* For Win32 ABI compatibility */
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#undef DEFAULT_PCC_STRUCT_RETURN
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#define DEFAULT_PCC_STRUCT_RETURN 0
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/* No data type wants to be aligned rounder than this. */
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#undef BIGGEST_ALIGNMENT
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#define BIGGEST_ALIGNMENT 128
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/* Native complier aligns internal doubles in structures on dword boundaries. */
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#undef BIGGEST_FIELD_ALIGNMENT
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#define BIGGEST_FIELD_ALIGNMENT 64
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/* A bit-field declared as `int' forces `int' alignment for the struct. */
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#undef PCC_BITFIELD_TYPE_MATTERS
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#define PCC_BITFIELD_TYPE_MATTERS 1
|
||
#define GROUP_BITFIELDS_BY_ALIGN TYPE_NATIVE(rec)
|
||
|
||
|
||
/* Enable alias attribute support. */
|
||
#ifndef SET_ASM_OP
|
||
#define SET_ASM_OP "\t.set\t"
|
||
#endif
|
||
|
||
/* Override GCC's relative pathname lookup (ie., relocatability) unless
|
||
otherwise told by other subtargets. */
|
||
#ifndef WIN32_NO_ABSOLUTE_INST_DIRS
|
||
#undef MD_STARTFILE_PREFIX
|
||
#define MD_STARTFILE_PREFIX "/usr/lib/"
|
||
|
||
#undef STANDARD_STARTFILE_PREFIX
|
||
#define STANDARD_STARTFILE_PREFIX "/usr/lib/mingw/"
|
||
|
||
#ifndef CROSS_COMPILE
|
||
#undef LOCAL_INCLUDE_DIR
|
||
#undef TOOL_INCLUDE_DIR
|
||
#undef SYSTEM_INCLUDE_DIR
|
||
#undef STANDARD_INCLUDE_DIR
|
||
#define STANDARD_INCLUDE_DIR 0
|
||
#endif /* not CROSS_COMPILE */
|
||
#endif /* not WIN32_NO_ABSOLUTE_INST_DIRS */
|
||
|
||
#undef TREE
|
||
|
||
#ifndef BUFSIZ
|
||
# undef FILE
|
||
#endif
|