/* Definitions for ARM EABI ucLinux
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/* Definitions for ARM EABI ucLinux
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Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc.
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Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc.
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Contributed by Paul Brook <paul@codesourcery.com>
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Contributed by Paul Brook <paul@codesourcery.com>
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This file is part of GCC.
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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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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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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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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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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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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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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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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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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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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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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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<http://www.gnu.org/licenses/>. */
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/* Override settings that are different to the uclinux-elf or
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/* Override settings that are different to the uclinux-elf or
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bpabi defaults. */
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bpabi defaults. */
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#undef TARGET_DEFAULT
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT (MASK_SINGLE_PIC_BASE | MASK_INTERWORK)
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#define TARGET_DEFAULT (MASK_SINGLE_PIC_BASE | MASK_INTERWORK)
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/* On EABI GNU/Linux, we want both the BPABI builtins and the
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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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GNU/Linux builtins. */
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#undef TARGET_OS_CPP_BUILTINS
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#undef TARGET_OS_CPP_BUILTINS
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#define TARGET_OS_CPP_BUILTINS() \
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#define TARGET_OS_CPP_BUILTINS() \
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do \
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do \
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{ \
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{ \
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TARGET_BPABI_CPP_BUILTINS(); \
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TARGET_BPABI_CPP_BUILTINS(); \
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builtin_define ("__uClinux__"); \
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builtin_define ("__uClinux__"); \
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builtin_define ("__gnu_linux__"); \
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builtin_define ("__gnu_linux__"); \
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builtin_define_std ("linux"); \
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builtin_define_std ("linux"); \
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builtin_define_std ("unix"); \
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builtin_define_std ("unix"); \
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builtin_assert ("system=linux"); \
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builtin_assert ("system=linux"); \
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builtin_assert ("system=unix"); \
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builtin_assert ("system=unix"); \
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builtin_assert ("system=posix"); \
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builtin_assert ("system=posix"); \
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} \
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} \
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while (false)
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while (false)
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#undef SUBTARGET_EXTRA_LINK_SPEC
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#undef SUBTARGET_EXTRA_LINK_SPEC
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#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux_eabi -elf2flt" \
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#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux_eabi -elf2flt" \
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" --pic-veneer --target2=abs"
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" --pic-veneer --target2=abs"
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/* We default to the "aapcs-linux" ABI so that enums are int-sized by
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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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default. */
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#undef ARM_DEFAULT_ABI
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#undef ARM_DEFAULT_ABI
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#define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX
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#define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX
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/* Clear the instruction cache from `beg' to `end'. This makes an
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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. */
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inline system call to SYS_cacheflush. */
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#undef CLEAR_INSN_CACHE
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#undef CLEAR_INSN_CACHE
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#define CLEAR_INSN_CACHE(BEG, END) \
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#define CLEAR_INSN_CACHE(BEG, END) \
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{ \
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{ \
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register unsigned long _beg __asm ("a1") = (unsigned long) (BEG); \
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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 _end __asm ("a2") = (unsigned long) (END); \
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register unsigned long _flg __asm ("a3") = 0; \
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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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register unsigned long _scno __asm ("r7") = 0xf0002; \
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__asm __volatile ("swi 0x0 @ sys_cacheflush" \
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__asm __volatile ("swi 0x0 @ sys_cacheflush" \
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: "=r" (_beg) \
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: "=r" (_beg) \
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: "0" (_beg), "r" (_end), "r" (_flg), "r" (_scno)); \
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: "0" (_beg), "r" (_end), "r" (_flg), "r" (_scno)); \
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}
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}
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