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julius |
/* Configuration file for ARM GNU/Linux EABI targets.
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Copyright (C) 2004, 2005, 2006, 2007
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Free Software Foundation, Inc.
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Contributed by CodeSourcery, LLC
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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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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/* On EABI GNU/Linux, we want both the BPABI builtins and the
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GNU/Linux builtins. */
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#undef TARGET_OS_CPP_BUILTINS
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#define TARGET_OS_CPP_BUILTINS() \
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do \
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{ \
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TARGET_BPABI_CPP_BUILTINS(); \
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LINUX_TARGET_OS_CPP_BUILTINS(); \
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} \
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while (false)
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/* We default to a soft-float ABI so that binaries can run on all
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target hardware. */
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#undef TARGET_DEFAULT_FLOAT_ABI
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#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT
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/* We default to the "aapcs-linux" ABI so that enums are int-sized by
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default. */
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#undef ARM_DEFAULT_ABI
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#define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX
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/* Default to armv5t so that thumb shared libraries work.
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The ARM10TDMI core is the default for armv5t, so set
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SUBTARGET_CPU_DEFAULT to achieve this. */
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#undef SUBTARGET_CPU_DEFAULT
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#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi
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#undef SUBTARGET_EXTRA_LINK_SPEC
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#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux_eabi"
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/* Use ld-linux.so.3 so that it will be possible to run "classic"
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GNU/Linux binaries on an EABI system. */
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#undef GLIBC_DYNAMIC_LINKER
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#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.3"
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/* At this point, bpabi.h will have clobbered LINK_SPEC. We want to
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use the GNU/Linux version, not the generic BPABI version. */
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#undef LINK_SPEC
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#define LINK_SPEC LINUX_TARGET_LINK_SPEC
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/* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we
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do not use -lfloat. */
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#undef LIBGCC_SPEC
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/* Use the AAPCS type for wchar_t, or the previous Linux default for
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non-AAPCS. */
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#undef WCHAR_TYPE
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#define WCHAR_TYPE (TARGET_AAPCS_BASED ? "unsigned int" : "long int")
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/* Clear the instruction cache from `beg' to `end'. This makes an
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inline system call to SYS_cacheflush. It is modified to work with
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both the original and EABI-only syscall interfaces. */
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#undef CLEAR_INSN_CACHE
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#define CLEAR_INSN_CACHE(BEG, END) \
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{ \
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register unsigned long _beg __asm ("a1") = (unsigned long) (BEG); \
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register unsigned long _end __asm ("a2") = (unsigned long) (END); \
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register unsigned long _flg __asm ("a3") = 0; \
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register unsigned long _scno __asm ("r7") = 0xf0002; \
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__asm __volatile ("swi 0x9f0002 @ sys_cacheflush" \
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: "=r" (_beg) \
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: "0" (_beg), "r" (_end), "r" (_flg), "r" (_scno)); \
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}
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