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81 lines
2.7 KiB
C
81 lines
2.7 KiB
C
/* Definitions for Intel 386 running system V, using gas.
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Copyright (C) 1992, 1995 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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#include <i386/gas.h>
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/* Add stuff that normally comes from i386v.h */
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/* longjmp may fail to restore the registers if called from the same
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function that called setjmp. To compensate, the compiler avoids
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putting variables in registers in functions that use both setjmp
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and longjmp. */
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#define NON_SAVING_SETJMP \
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(current_function_calls_setjmp && current_function_calls_longjmp)
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/* longjmp may fail to restore the stack pointer if the saved frame
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pointer is the same as the caller's frame pointer. Requiring a frame
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pointer in any function that calls setjmp or longjmp avoids this
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problem, unless setjmp and longjmp are called from the same function.
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Since a frame pointer will be required in such a function, it is OK
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that the stack pointer is not restored. */
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#undef SUBTARGET_FRAME_POINTER_REQUIRED
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#define SUBTARGET_FRAME_POINTER_REQUIRED \
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(current_function_calls_setjmp || current_function_calls_longjmp)
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/* Modify ASM_OUTPUT_LOCAL slightly to test -msvr3-shlib, adapted to gas */
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#undef ASM_OUTPUT_LOCAL
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#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
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do { \
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int align = exact_log2 (ROUNDED); \
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if (align > 2) align = 2; \
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if (TARGET_SVR3_SHLIB) \
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{ \
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data_section (); \
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ASM_OUTPUT_ALIGN ((FILE), align == -1 ? 2 : align); \
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ASM_OUTPUT_LABEL ((FILE), (NAME)); \
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fprintf ((FILE), "\t.set .,.+%u\n", (ROUNDED)); \
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} \
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else \
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{ \
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fputs (".lcomm ", (FILE)); \
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assemble_name ((FILE), (NAME)); \
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fprintf ((FILE), ",%u\n", (ROUNDED)); \
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} \
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} while (0)
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/* Add stuff that normally comes from i386v.h via svr3.h */
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/* Define the actual types of some ANSI-mandated types. These
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definitions should work for most SVR3 systems. */
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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 "long int"
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE BITS_PER_WORD
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