137 lines
4.4 KiB
C
137 lines
4.4 KiB
C
/* Configuration for an OpenBSD i386 target.
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Copyright (C) 1999 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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/* This is tested by i386gas.h. */
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#define YES_UNDERSCORES
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#include <i386/gstabs.h>
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/* Get perform_* macros to build libgcc.a. */
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#include <i386/perform.h>
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/* Get generic OpenBSD definitions. */
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#define OBSD_OLD_GAS
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#include <openbsd.h>
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/* This goes away when the math-emulator is fixed */
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT \
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(MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_NO_FANCY_MATH_387)
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/* Run-time target specifications */
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#define CPP_PREDEFINES "-D__unix__ -D__i386__ -D__OpenBSD__ -Asystem(unix) -Asystem(OpenBSD) -Acpu(i386) -Amachine(i386)"
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/* Layout of source language data types. */
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/* This must agree with <machine/ansi.h> */
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#undef SIZE_TYPE
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#define SIZE_TYPE "unsigned int"
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE "int"
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#undef WCHAR_TYPE
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#define WCHAR_TYPE "int"
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE 32
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/* Assembler format: overall framework. */
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#undef ASM_APP_ON
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#define ASM_APP_ON "#APP\n"
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#undef ASM_APP_OFF
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#define ASM_APP_OFF "#NO_APP\n"
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/* The following macros were originally stolen from i386v4.h.
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These have to be defined to get PIC code correct. */
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/* Assembler format: dispatch tables. */
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/* How to output an element of a case-vector that is relative.
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This is only used for PIC code. See comments by the `casesi' insn in
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i386.md for an explanation of the expression this outputs. */
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#undef ASM_OUTPUT_ADDR_DIFF_ELT
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#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
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fprintf (FILE, "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX, VALUE)
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/* Assembler format: sections. */
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/* Indicate when jump tables go in the text section. This is
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necessary when compiling PIC code. */
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#define JUMP_TABLES_IN_TEXT_SECTION (flag_pic)
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/* Stack & calling: aggregate returns. */
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/* Don't default to pcc-struct-return, because gcc is the only compiler, and
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we want to retain compatibility with older gcc versions. */
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#define DEFAULT_PCC_STRUCT_RETURN 0
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/* Assembler format: alignment output. */
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/* Kludgy test: when gas is upgraded, it will have p2align, and no problems
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with nops. */
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#ifndef HAVE_GAS_MAX_SKIP_P2ALIGN
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/* i386 OpenBSD still uses an older gas that doesn't insert nops by default
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when the .align directive demands to insert extra space in the text
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segment. */
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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,0x90\n", (LOG))
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#endif
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/* Stack & calling: profiling. */
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/* OpenBSD's profiler recovers all information from the stack pointer.
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The icky part is not here, but in machine/profile.h. */
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#undef FUNCTION_PROFILER
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#define FUNCTION_PROFILER(FILE, LABELNO) \
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fputs (flag_pic ? "\tcall mcount@PLT\n": "\tcall mcount\n", FILE);
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/* Assembler format: exception region output. */
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/* All configurations that don't use elf must be explicit about not using
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dwarf unwind information. egcs doesn't try too hard to check internal
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configuration files... */
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#define DWARF2_UNWIND_INFO 0
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/* Assembler format: alignment output. */
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/* A C statement to output to the stdio stream FILE an assembler
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command to advance the location counter to a multiple of 1<<LOG
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bytes if it is within MAX_SKIP bytes.
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This will be used to align code labels according to Intel
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recommendations, in prevision of binutils upgrade. */
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#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
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#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
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do { \
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if ((LOG) != 0) { \
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if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
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else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
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} \
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} while (0)
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#endif
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/* Note that we pick up ASM_OUTPUT_MI_THUNK from unix.h. */
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