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/* Definitions for ARM EABI ucLinux
Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc.
Contributed by Paul Brook <paul@codesourcery.com>
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3, or (at your
option) any later version.
GCC is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
/* Override settings that are different to the uclinux-elf or
bpabi defaults. */
#undef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_SINGLE_PIC_BASE | MASK_INTERWORK)
/* On EABI GNU/Linux, we want both the BPABI builtins and the
GNU/Linux builtins. */
#undef TARGET_OS_CPP_BUILTINS
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
TARGET_BPABI_CPP_BUILTINS(); \
builtin_define ("__uClinux__"); \
builtin_define ("__gnu_linux__"); \
builtin_define_std ("linux"); \
builtin_define_std ("unix"); \
builtin_assert ("system=linux"); \
builtin_assert ("system=unix"); \
builtin_assert ("system=posix"); \
} \
while (false)
#undef SUBTARGET_EXTRA_LINK_SPEC
#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux_eabi -elf2flt" \
" --pic-veneer --target2=abs"
/* We default to the "aapcs-linux" ABI so that enums are int-sized by
default. */
#undef ARM_DEFAULT_ABI
#define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX
/* Clear the instruction cache from `beg' to `end'. This makes an
inline system call to SYS_cacheflush. */
#undef CLEAR_INSN_CACHE
#define CLEAR_INSN_CACHE(BEG, END) \
{ \
register unsigned long _beg __asm ("a1") = (unsigned long) (BEG); \
register unsigned long _end __asm ("a2") = (unsigned long) (END); \
register unsigned long _flg __asm ("a3") = 0; \
register unsigned long _scno __asm ("r7") = 0xf0002; \
__asm __volatile ("swi 0x0 @ sys_cacheflush" \
: "=r" (_beg) \
: "0" (_beg), "r" (_end), "r" (_flg), "r" (_scno)); \
}
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