1/* Configuration for an OpenBSD i386 target. 2 Copyright (C) 1999, 2000, 2002, 2004 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify 7it under the terms of the GNU General Public License as published by 8the Free Software Foundation; either version 2, or (at your option) 9any later version. 10 11GCC is distributed in the hope that it will be useful, 12but WITHOUT ANY WARRANTY; without even the implied warranty of 13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14GNU General Public License for more details. 15 16You should have received a copy of the GNU General Public License 17along with GCC; see the file COPYING. If not, write to 18the Free Software Foundation, 51 Franklin Street, Fifth Floor, 19Boston, MA 02110-1301, USA. */ 20 21 22#define TARGET_VERSION fprintf (stderr, " (OpenBSD/i386)"); 23 24/* This goes away when the math-emulator is fixed */ 25#undef TARGET_SUBTARGET_DEFAULT 26#define TARGET_SUBTARGET_DEFAULT \ 27 (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_NO_FANCY_MATH_387) 28 29#define TARGET_OS_CPP_BUILTINS() \ 30 do \ 31 { \ 32 builtin_define ("__unix__"); \ 33 builtin_define ("__OpenBSD__"); \ 34 builtin_assert ("system=unix"); \ 35 builtin_assert ("system=bsd"); \ 36 builtin_assert ("system=OpenBSD"); \ 37 } \ 38 while (0) 39 40/* Layout of source language data types. */ 41 42/* This must agree with <machine/ansi.h> */ 43#undef SIZE_TYPE 44#define SIZE_TYPE "unsigned int" 45 46#undef PTRDIFF_TYPE 47#define PTRDIFF_TYPE "int" 48 49#undef WCHAR_TYPE 50#define WCHAR_TYPE "int" 51 52#undef WCHAR_TYPE_SIZE 53#define WCHAR_TYPE_SIZE 32 54 55/* Assembler format: overall framework. */ 56 57#undef ASM_APP_ON 58#define ASM_APP_ON "#APP\n" 59 60#undef ASM_APP_OFF 61#define ASM_APP_OFF "#NO_APP\n" 62 63/* Stack & calling: aggregate returns. */ 64 65/* Don't default to pcc-struct-return, because gcc is the only compiler, and 66 we want to retain compatibility with older gcc versions. */ 67#define DEFAULT_PCC_STRUCT_RETURN 0 68 69/* Assembler format: alignment output. */ 70 71/* Kludgy test: when gas is upgraded, it will have p2align, and no problems 72 with nops. */ 73#ifndef HAVE_GAS_MAX_SKIP_P2ALIGN 74/* i386 OpenBSD still uses an older gas that doesn't insert nops by default 75 when the .align directive demands to insert extra space in the text 76 segment. */ 77#undef ASM_OUTPUT_ALIGN 78#define ASM_OUTPUT_ALIGN(FILE,LOG) \ 79 if ((LOG)!=0) fprintf ((FILE), "\t.align %d,0x90\n", (LOG)) 80#endif 81 82/* Stack & calling: profiling. */ 83 84/* OpenBSD's profiler recovers all information from the stack pointer. 85 The icky part is not here, but in machine/profile.h. */ 86#undef FUNCTION_PROFILER 87#define FUNCTION_PROFILER(FILE, LABELNO) \ 88 fputs (flag_pic ? "\tcall mcount@PLT\n": "\tcall mcount\n", FILE); 89 90/* Assembler format: exception region output. */ 91 92/* All configurations that don't use elf must be explicit about not using 93 dwarf unwind information. */ 94#define DWARF2_UNWIND_INFO 0 95 96#undef ASM_PREFERRED_EH_DATA_FORMAT 97 98#undef ASM_COMMENT_START 99#define ASM_COMMENT_START ";#" 100 101/* OpenBSD gas currently does not support quad, so do not use it. */ 102#undef ASM_QUAD 103