/* Configuration for an OpenBSD i386 target. Copyright (C) 1999 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. */ /* This is tested by i386gas.h. */ #define YES_UNDERSCORES #include <i386/gstabs.h> /* Get perform_* macros to build libgcc.a. */ #include <i386/perform.h> /* Get generic OpenBSD definitions. */ #define OBSD_OLD_GAS #include <openbsd.h> /* 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 CPP_PREDEFINES "-D__unix__ -D__i386__ -D__OpenBSD__ -Asystem(unix) -Asystem(OpenBSD) -Acpu(i386) -Amachine(i386)" /* Layout of source language data types. */ /* This must agree with <machine/ansi.h> */ #undef SIZE_TYPE #define SIZE_TYPE "unsigned int" #undef PTRDIFF_TYPE #define PTRDIFF_TYPE "int" #undef WCHAR_TYPE #define WCHAR_TYPE "int" #undef WCHAR_TYPE_SIZE #define WCHAR_TYPE_SIZE 32 /* 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" /* The following macros were originally stolen from i386v4.h. These have to be defined to get PIC code correct. */ /* Assembler format: dispatch tables. */ /* How to output an element of a case-vector that is relative. This is only used for PIC code. See comments by the `casesi' insn in i386.md for an explanation of the expression this outputs. */ #undef ASM_OUTPUT_ADDR_DIFF_ELT #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \ fprintf (FILE, "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX, VALUE) /* Assembler format: sections. */ /* Indicate when jump tables go in the text section. This is necessary when compiling PIC code. */ #define JUMP_TABLES_IN_TEXT_SECTION (flag_pic) /* 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. */ /* Kludgy test: when gas is upgraded, it will have p2align, and no problems with nops. */ #ifndef HAVE_GAS_MAX_SKIP_P2ALIGN /* i386 OpenBSD still uses an older gas that doesn't insert nops by default when the .align directive demands to insert extra space in the text segment. */ #undef ASM_OUTPUT_ALIGN #define ASM_OUTPUT_ALIGN(FILE,LOG) \ if ((LOG)!=0) fprintf ((FILE), "\t.align %d,0x90\n", (LOG)) #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. */ /* All configurations that don't use elf must be explicit about not using dwarf unwind information. egcs doesn't try too hard to check internal configuration files... */ #define DWARF2_UNWIND_INFO 0 /* Assembler format: alignment output. */ /* A C statement to output to the stdio stream FILE an assembler command to advance the location counter to a multiple of 1<<LOG bytes if it is within MAX_SKIP bytes. This will be used to align code labels according to Intel recommendations, in prevision of binutils upgrade. */ #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \ do { \ 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)); \ } \ } while (0) #endif /* Note that we pick up ASM_OUTPUT_MI_THUNK from unix.h. */