68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
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/* Definitions for rtems targeting a Motorola m68k using elf.
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Copyright (C) 1999, National Research Council of Canada.
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Contributed by Charles-Antoine Gauthier (charles.gauthier@nrc.ca).
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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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#define MOTOROLA /* Use Motorola syntax rather than MIT. */
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#include "m68k/m68020-elf.h"
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/* Specify predefined symbols in preprocessor. */
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#undef CPP_PREDEFINES
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#define CPP_PREDEFINES "-Dmc68000 -Drtems -D__rtems__ -D__ELF__ \
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-Asystem(rtems) -Acpu(mc68000) -Acpu(m68k) -Amachine(m68k)"
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/* Generate calls to memcpy, memcmp and memset. */
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#ifndef TARGET_MEM_FUNCTIONS
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#define TARGET_MEM_FUNCTIONS
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#endif
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/*
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* Each RTEMS BSP provides its own crt0 and linker script. Unfortunately
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* this means that crt0 and the linker script are not available as
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* each tool is configured. Without a crt0 and linker script, m68k ELF
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* targets do not successfully link "conftest.c" during the configuration
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* process. RTEMS supplies a crt0.c that provides all the symbols required
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* to successfully link a program. The resulting program will not run
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* but this is enough to satisfy the autoconf macro AC_PROG_CC.
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* Override STARTFILE_SPEC to use the fake crt0.o supplied by rtems.
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*/
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC "crt0.o%s"
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/*
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* Redefine INIT_SECTION_ASM_OP and FINI_SECTION_ASM_OP. This is the easiest
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* way to process constructors, destructors, and the exception frame
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* information at startup.
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*/
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#undef INIT_SECTION_ASM_OP
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#define INIT_SECTION_ASM_OP ".section\t.init"
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#undef FINI_SECTION_ASM_OP
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#define FINI_SECTION_ASM_OP ".section\t.fini"
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#undef EH_FRAME_SECTION_ASM_OP
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#define EH_FRAME_SECTION_ASM_OP ".section\t.eh_frame"
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/* Do I need this? */
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#undef INVOKE__main
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