| /* 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> |
| |
| /* 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. */ |
| |