130 lines
4.0 KiB
C
130 lines
4.0 KiB
C
/* Definitions for IBM PS2 running AIX/386.
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From: Minh Tran-Le <TRANLE@intellicorp.com>
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Copyright (C) 1988 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "i386.h"
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/* Get the generic definitions for system V.3. */
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#include "svr3.h"
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/* Use the ATT assembler syntax.
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This overrides at least one macro (ASM_OUTPUT_LABELREF) from svr3.h. */
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#include "att386.h"
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/* By default, target has a 80387. */
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#define TARGET_DEFAULT 1
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/* Use crt1.o as a startup file and crtn.o as a closing file. */
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#define STARTFILE_SPEC \
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"%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}} crtbegin.o%s"
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#define LIB_SPEC "%{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp} -lc \
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crtend.o%s crtn.o%s"
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/* Special flags for the linker. I don't know what they do. */
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#define LINK_SPEC "%{K} %{!K:-K} %{T*} %{z:-lm}"
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/* Specify predefined symbols in preprocessor. */
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#define CPP_PREDEFINES "-D_I386 -Di386 -DAIX -D_AIX"
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/* special flags for the aix assembler to generate the short form for all
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qualifying forward reference */
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#define ASM_SPEC "-s2"
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#undef ASM_FILE_START
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#define ASM_FILE_START(FILE) \
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do { fprintf (FILE, "\t.file\t\"%s\"\n", dump_base_name); \
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if (optimize) \
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ASM_FILE_START_1 (FILE); \
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else \
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fprintf (FILE, "\t.noopt\n"); \
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} while (0)
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/* This was suggested, but it shouldn't be right for DBX output. -- RMS
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#define ASM_OUTPUT_SOURCE_FILENAME(FILE, NAME) */
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/* Writing `int' for a bitfield forces int alignment for the structure. */
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#define PCC_BITFIELD_TYPE_MATTERS 1
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#if 0
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/* Don't write a `.optim' pseudo; this assembler
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is said to have a bug when .optim is used. */
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#undef ASM_FILE_START_1
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#define ASM_FILE_START_1(FILE) fprintf (FILE, "\t.noopt\n");
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#endif
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/* Machines that use the AT&T assembler syntax
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also return floating point values in an FP register. */
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/* Define how to find the value returned by a function.
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VALTYPE is the data type of the value (as a tree).
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If the precise function being called is known, FUNC is its FUNCTION_DECL;
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otherwise, FUNC is 0. */
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#define VALUE_REGNO(MODE) \
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(((MODE)==SFmode || (MODE)==DFmode) ? FIRST_FLOAT_REG : 0)
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/* 1 if N is a possible register number for a function value. */
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#define FUNCTION_VALUE_REGNO_P(N) ((N) == 0 || (N)== FIRST_FLOAT_REG)
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/* Output assembler code to FILE to increment profiler label # LABELNO
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for profiling a function entry. */
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#undef FUNCTION_PROFILER
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#define FUNCTION_PROFILER(FILE, LABELNO) \
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fprintf (FILE, "\tleal %sP%d,%%eax\n\tcall mcount\n", LPREFIX, (LABELNO));
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/* Note that using bss_section here caused errors
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in building shared libraries on system V.3.
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but AIX 1.2 does not have yet shareable libraries on PS2 */
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#undef ASM_OUTPUT_LOCAL
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#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
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(bss_section (), \
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ASM_OUTPUT_LABEL ((FILE), (NAME)), \
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fprintf ((FILE), "\t.set .,.+%u\n", (ROUNDED)))
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/* Define a few machine-specific details of the implementation of
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constructors. */
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#undef INIT_SECTION_ASM_OP
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#define INIT_SECTION_ASM_OP ".section .init,\"x\""
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#define CTOR_LIST_BEGIN \
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asm (INIT_SECTION_ASM_OP); \
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asm ("pushl $0")
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#define CTOR_LIST_END CTOR_LIST_BEGIN
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#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
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do { \
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init_section (); \
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fprintf (FILE, "\tpushl $"); \
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assemble_name (FILE, NAME); \
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fprintf (FILE, "\n"); \
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} while (0)
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