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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.2.2/] [gcc/] [config/] [sh/] [superh.h] - Blame information for rev 199

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1 38 julius
/* Definitions of target machine for gcc for Super-H using sh-superh-elf.
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   Copyright (C) 2001, 2006, 2007 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 3, 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 GCC; see the file COPYING3.  If not see
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<http://www.gnu.org/licenses/>.  */
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/* This header file is used when the vendor name is set to 'superh'.
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   config.gcc already configured the compiler for SH4 only and switched
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   the default endianess to little (although big endian is still available).
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   This file configures the spec file to the default board configuration
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   but in such a way that it can be overridden by a boardspecs file
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   (using the -specs= option). This file is expected to disable the
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   defaults and provide options --defsym _start and --defsym _stack
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   which are required by the SuperH configuration of GNU ld.
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   This file is intended to override sh.h.  */
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#ifndef _SUPERH_H
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#define _SUPERH_H
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#endif
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#undef TARGET_VERSION
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#define TARGET_VERSION fprintf (stderr, " (SuperH SH special %s)", __DATE__);
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/* Override the linker spec strings to use the new emulation
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   The specstrings are concatenated as follows
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   LINK_EMUL_PREFIX.(''|'32'|'64'|LINK_DEFAULT_CPU_EMUL).SUBTARGET_LINK_EMUL_SUFFIX
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*/
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#undef LINK_EMUL_PREFIX
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#undef SUBTARGET_LINK_EMUL_SUFFIX
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#define LINK_EMUL_PREFIX "superh"
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#define SUBTARGET_LINK_EMUL_SUFFIX ""
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/* Add the SUBTARGET_LINK_SPEC to add the board and runtime support and
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   change the endianness */
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#undef SUBTARGET_LINK_SPEC
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#if  TARGET_ENDIAN_DEFAULT == MASK_LITTLE_ENDIAN
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#define SUBTARGET_LINK_SPEC "%(board_link) %(ldruntime) %{ml|!mb:-EL}%{mb:-EB}"
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#else
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#define SUBTARGET_LINK_SPEC "%(board_link) %(ldruntime) %{ml:-EL}%{mb|!ml:-EB}"
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#endif
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/* This is used by the link spec if the boardspecs file is not used (for whatever reason).
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   If the boardspecs file overrides this then an alternative can be used. */
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#undef SUBTARGET_EXTRA_SPECS
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#define SUBTARGET_EXTRA_SPECS \
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{ "board_link", "--defsym _start=0x1000 --defsym _stack=0x30000" }, \
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{ "asruntime", "" }, \
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{ "cppruntime", "-D__GDB_SIM__" }, \
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{ "cc1runtime", "" }, \
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{ "ldruntime", "" }, \
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{ "libruntime", "-lc -lgloss" }
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/* Set the SUBTARGET_CPP_SPEC to define __EMBEDDED_CROSS__ which has an effect
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   on newlib and provide the runtime support */
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#undef SUBTARGET_CPP_SPEC
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#define SUBTARGET_CPP_SPEC \
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"-D__EMBEDDED_CROSS__ %{m4-100*:-D__SH4_100__} %{m4-200*:-D__SH4_200__} %{m4-400:-D__SH4_400__} %{m4-500:-D__SH4_500__} \
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%(cppruntime)"
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/* Override the SUBTARGET_ASM_SPEC to add the runtime support */
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#undef SUBTARGET_ASM_SPEC
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#define SUBTARGET_ASM_SPEC "%{m4-100*|m4-200*:-isa=sh4} %{m4-400:-isa=sh4-nommu-nofpu} %{m4-500:-isa=sh4-nofpu} %(asruntime)"
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/* Override the SUBTARGET_ASM_RELAX_SPEC so it doesn't interfere with the
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   runtime support by adding -isa=sh4 in the wrong place.  */
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#undef SUBTARGET_ASM_RELAX_SPEC
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#define SUBTARGET_ASM_RELAX_SPEC "%{!m4-100*:%{!m4-200*:%{!m4-400:%{!m4-500:-isa=sh4}}}}"
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/* Create the CC1_SPEC to add the runtime support */
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#undef CC1_SPEC
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#define CC1_SPEC "%(cc1runtime)"
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#undef CC1PLUS_SPEC
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#define CC1PLUS_SPEC "%(cc1runtime)"
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/* Override the LIB_SPEC to add the runtime support */
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#undef LIB_SPEC
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#define LIB_SPEC "%{!shared:%{!symbolic:%(libruntime) -lc}} %{pg:-lprofile -lc}"
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/* Override STARTFILE_SPEC to add profiling and MMU support.  */
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC \
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  "%{!shared: %{!m4-400*: %{pg:gcrt1-mmu.o%s}%{!pg:crt1-mmu.o%s}}} \
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   %{!shared: %{m4-400*: %{pg:gcrt1.o%s}%{!pg:crt1.o%s}}} \
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   crti.o%s \
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   %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"

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