145 lines
4.8 KiB
C
145 lines
4.8 KiB
C
/* Definitions of target machine for GNU compiler. ARM RISCiX version.
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Copyright (C) 1993, 1994, 1995, 1997, 1999, 2000
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Free Software Foundation, Inc.
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Contributed by Richard Earnshaw (rwe11@cl.cam.ac.uk), based on original
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work by Pieter `Tiggr' Schoenmakers (rcpieter@win.tue.nl)
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and Martin Simmons (@harleqn.co.uk).
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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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/* Translation to find startup files. On RISC iX boxes,
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crt0, mcrt0 and gcrt0.o are in /usr/lib. */
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#define STARTFILE_SPEC "\
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%{pg:/usr/lib/gcrt0.o%s}\
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%{!pg:%{p:/usr/lib/mcrt0.o%s}\
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%{!p:/usr/lib/crt0.o%s}}"
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/* RISC iX has no concept of -lg */
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/* If -static is specified then link with -lc_n */
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#ifndef LIB_SPEC
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#define LIB_SPEC "\
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%{g*:-lg}\
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%{!p:%{!pg:%{!static:-lc}%{static:-lc_n}}}\
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%{p:-lc_p}\
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%{pg:-lc_p}"
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#endif
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/* The RISC iX assembler never deletes any symbols from the object module;
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and, by default, ld doesn't either. -X causes local symbols starting
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with 'L' to be deleted, which is what we want. */
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#ifndef LINK_SPEC
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#define LINK_SPEC "-X"
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#endif
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#ifndef CPP_PREDEFINES
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#define CPP_PREDEFINES \
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"-Darm -Driscix -Dunix -Asystem=unix"
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#endif
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/* RISCiX has some weird symbol name munging, that is done to the object module
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after assembly, which enables multiple libraries to be supported within
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one (possibly shared) library. It basically changes the symbol name of
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certain symbols (for example _bcopy is converted to _$bcopy if using BSD)
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Symrename's parameters are determined as follows:
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-mno-symrename Don't run symrename
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-mbsd symrename -BSD <file>
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-mxopen symrename -XOPEN <file>
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-ansi symrename - <file>
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<none> symrename -BSD <file>
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*/
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#ifndef ASM_FINAL_SPEC
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#if !defined (CROSS_COMPILE)
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#define ASM_FINAL_SPEC "\
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%{!mno-symrename: \
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\n /usr/bin/symrename \
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-%{mbsd:%{pedantic:%e-mbsd and -pedantic incompatible}BSD}\
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%{mxopen:%{mbsd:%e-mbsd and -mxopen incompatible}\
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%{pedantic:%e-mxopen and -pedantic incompatible}XOPEN}\
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%{!mbsd:%{!mxopen:%{!ansi:BSD}}} %{c:%{o*:%*}%{!o*:%b.o}}%{!c:%U.o}}"
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#endif
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#endif
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/* None of these is actually used in cc1. If we don't define them in target
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switches cc1 complains about them. For the sake of argument lets allocate
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bit 31 of target flags for such options. */
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#define SUBTARGET_SWITCHES \
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{"bsd", 0x80000000, N_("Do symbol renaming for BSD")}, \
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{"xopen", 0x80000000, N_("Do symbol renaming for X/OPEN")}, \
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{"no-symrename", 0x80000000, N_("Don't do symbol renaming")},
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/* Run-time Target Specification. */
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#define TARGET_VERSION \
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fputs (" (ARM/RISCiX)", stderr);
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/* This is used in ASM_FILE_START */
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#define ARM_OS_NAME "RISCiX"
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/* Unsigned chars produces much better code than signed. */
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#define DEFAULT_SIGNED_CHAR 0
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/* Some systems use __main in a way incompatible with its use in gcc, in these
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cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to
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give the same symbol without quotes for an alternative entry point. You
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must define both, or neither. */
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#ifndef NAME__MAIN
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#define NAME__MAIN "__gccmain"
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#define SYMBOL__MAIN __gccmain
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#endif
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/* size_t is "unsigned int" in RISCiX */
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#define SIZE_TYPE "unsigned int"
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/* ptrdiff_t is "int" in RISCiX */
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#define PTRDIFF_TYPE "int"
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/* Maths operation domain error number, EDOM */
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#define TARGET_EDOM 33
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/* Override the normal default CPU */
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#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm2
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/* r10 is reserved by RISCiX */
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#define SUBTARGET_CONDITIONAL_REGISTER_USAGE \
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fixed_regs[10] = 1; \
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call_used_regs[10] = 1;
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#include "arm/aout.h"
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/* The RISCiX assembler does not understand .set */
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#undef SET_ASM_OP
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/* Add to CPP_SPEC, we want to add the right #defines when using the include
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files. */
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#define SUBTARGET_CPP_SPEC "\
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%{mbsd:%{pedantic:%e-mbsd and -pedantic incompatible} -D_BSD_C} \
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%{mxopen:%{mbsd:%e-mbsd and -mxopen incompatible} \
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%{pedantic:%e-mxopen and -pedantic incompatible} -D_XOPEN_C} \
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%{!mbsd:%{!mxopen:%{!ansi: -D_BSD_C}}}"
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/* The native RISCiX assembler does not support stabs of any kind; because
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the native assembler is not used by the compiler, Acorn didn't feel it was
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necessary to put them in! */
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#ifdef DBX_DEBUGGING_INFO
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#undef DBX_DEBUGGING_INFO
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#endif
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