1 /* Configuration for an OpenBSD i386 target. 2 Copyright (C) 1999, 2000, 2002, 2004 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 GCC is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GCC; see the file COPYING. If not, write to 18 the Free Software Foundation, 51 Franklin Street, Fifth Floor, 19 Boston, 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