1 /* Definitions for Intel 386 running system V, using gas. 2 Copyright (C) 1992 Free Software Foundation, Inc. 3 4 This file is part of GNU CC. 5 6 GNU CC 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 GNU CC 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 GNU CC; see the file COPYING. If not, write to 18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ 19 20 #include "gas.h" 21 22 /* Add stuff that normally comes from i386v.h */ 23 24 /* longjmp may fail to restore the registers if called from the same 25 function that called setjmp. To compensate, the compiler avoids 26 putting variables in registers in functions that use both setjmp 27 and longjmp. */ 28 29 #define NON_SAVING_SETJMP \ 30 (current_function_calls_setjmp && current_function_calls_longjmp) 31 32 /* longjmp may fail to restore the stack pointer if the saved frame 33 pointer is the same as the caller's frame pointer. Requiring a frame 34 pointer in any function that calls setjmp or longjmp avoids this 35 problem, unless setjmp and longjmp are called from the same function. 36 Since a frame pointer will be required in such a function, it is OK 37 that the stack pointer is not restored. */ 38 39 #undef FRAME_POINTER_REQUIRED 40 #define FRAME_POINTER_REQUIRED \ 41 (current_function_calls_setjmp || current_function_calls_longjmp) 42 43 /* Modify ASM_OUTPUT_LOCAL slightly to test -msvr3-shlib, adapted to gas */ 44 #undef ASM_OUTPUT_LOCAL 45 #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ 46 do { \ 47 int align = exact_log2 (ROUNDED); \ 48 if (align > 2) align = 2; \ 49 if (TARGET_SVR3_SHLIB) \ 50 { \ 51 data_section (); \ 52 ASM_OUTPUT_ALIGN ((FILE), align == -1 ? 2 : align); \ 53 ASM_OUTPUT_LABEL ((FILE), (NAME)); \ 54 fprintf ((FILE), "\t.set .,.+%u\n", (ROUNDED)); \ 55 } \ 56 else \ 57 { \ 58 fputs (".lcomm ", (FILE)); \ 59 assemble_name ((FILE), (NAME)); \ 60 fprintf ((FILE), ",%u\n", (ROUNDED)); \ 61 } \ 62 } while (0) 63 64 /* Add stuff that normally comes from i386v.h via svr3.h */ 65 66 /* Define the actual types of some ANSI-mandated types. These 67 definitions should work for most SVR3 systems. */ 68 69 #undef SIZE_TYPE 70 #define SIZE_TYPE "unsigned int" 71 72 #undef PTRDIFF_TYPE 73 #define PTRDIFF_TYPE "int" 74 75 #undef WCHAR_TYPE 76 #define WCHAR_TYPE "long int" 77 78 #undef WCHAR_TYPE_SIZE 79 #define WCHAR_TYPE_SIZE BITS_PER_WORD 80