Subversion Repositories openrisc_2011-10-31

/* Configuration for an OpenBSD i386 target.

   Copyright (C) 2005, 2007 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 3, 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 COPYING3.  If not see

<http://www.gnu.org/licenses/>.  */

/* This gets defined in tm.h->linux.h->svr4.h, and keeps us from using

   libraries compiled with the native cc, so undef it. */

#undef NO_DOLLAR_IN_LABEL

/* Override the default comment-starter of "/".  */

#undef ASM_COMMENT_START

#define ASM_COMMENT_START "#"

#undef DBX_REGISTER_NUMBER

#define DBX_REGISTER_NUMBER(n)  svr4_dbx_register_map[n]

/* This goes away when the math-emulator is fixed */

#undef TARGET_DEFAULT

#define TARGET_DEFAULT \

  (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_NO_FANCY_MATH_387)

/* Run-time target specifications */

#define TARGET_OS_CPP_BUILTINS()                \

  do                                            \

    {                                           \

        OPENBSD_OS_CPP_BUILTINS();              \

    }                                           \

  while (0)

/* As an elf system, we need crtbegin/crtend stuff.  */

#undef STARTFILE_SPEC

#define STARTFILE_SPEC "\

        %{!shared: %{pg:gcrt0%O%s} %{!pg:%{p:gcrt0%O%s} %{!p:crt0%O%s}} \

        crtbegin%O%s} %{shared:crtbeginS%O%s}"

#undef ENDFILE_SPEC

#define ENDFILE_SPEC "%{!shared:crtend%O%s} %{shared:crtendS%O%s}"

/* Layout of source language data types.  */

/* This must agree with <machine/ansi.h> */

#undef SIZE_TYPE

#define SIZE_TYPE "long unsigned int"

#undef PTRDIFF_TYPE

#define PTRDIFF_TYPE "long int"

#undef WCHAR_TYPE

#define WCHAR_TYPE "int"

#undef WCHAR_TYPE_SIZE

#define WCHAR_TYPE_SIZE BITS_PER_WORD

#undef WINT_TYPE

#define WINT_TYPE "int"

/* Assembler format: overall framework.  */

#undef ASM_APP_ON

#define ASM_APP_ON "#APP\n"

#undef ASM_APP_OFF

#define ASM_APP_OFF "#NO_APP\n"

#undef SET_ASM_OP

#define SET_ASM_OP      "\t.set\t"

/* The following macros were originally stolen from i386v4.h.

   These have to be defined to get PIC code correct.  */

/* Assembler format: dispatch tables.  */

/* Assembler format: sections.  */

/* Stack & calling: aggregate returns.  */

/* Don't default to pcc-struct-return, because gcc is the only compiler, and

   we want to retain compatibility with older gcc versions.  */

#define DEFAULT_PCC_STRUCT_RETURN 0

/* Assembler format: alignment output.  */

#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN

#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \

  if ((LOG) != 0) {\

    if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \

    else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \

  }

#endif

/* Stack & calling: profiling.  */

/* OpenBSD's profiler recovers all information from the stack pointer.

   The icky part is not here, but in machine/profile.h.  */

#undef FUNCTION_PROFILER

#define FUNCTION_PROFILER(FILE, LABELNO)  \

  fputs (flag_pic ? "\tcall __mcount@PLT\n": "\tcall __mcount\n", FILE);

/* Assembler format: exception region output.  */

/* our configuration still doesn't handle dwarf2 correctly */

#define DWARF2_UNWIND_INFO 0

/* Assembler format: alignment output.  */

/* Note that we pick up ASM_OUTPUT_MAX_SKIP_ALIGN from i386/gas.h */

/* Note that we pick up ASM_OUTPUT_MI_THUNK from unix.h.  */

#undef LINK_SPEC

#define LINK_SPEC \

  "%{!shared:%{!nostdlib:%{!r*:%{!e*:-e __start}}}} \

   %{shared:-shared} %{R*} \

   %{static:-Bstatic} \

   %{!static:-Bdynamic} \

   %{assert*} \

   %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.so}"

#define OBSD_HAS_CORRECT_SPECS