61 lines
2.2 KiB
C
61 lines
2.2 KiB
C
/* Definitions of target machine for GNU compiler.
|
|
ARM Linux-based GNU systems version.
|
|
Copyright (C) 1997-2019 Free Software Foundation, Inc.
|
|
Contributed by Russell King <rmk92@ecs.soton.ac.uk>.
|
|
|
|
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.
|
|
|
|
Under Section 7 of GPL version 3, you are granted additional
|
|
permissions described in the GCC Runtime Library Exception, version
|
|
3.1, as published by the Free Software Foundation.
|
|
|
|
You should have received a copy of the GNU General Public License and
|
|
a copy of the GCC Runtime Library Exception along with this program;
|
|
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
/* This is how we tell the assembler that a symbol is weak.
|
|
GAS always supports weak symbols. */
|
|
|
|
/* Unsigned chars produces much better code than signed. */
|
|
#define DEFAULT_SIGNED_CHAR 0
|
|
|
|
#undef SUBTARGET_CPP_SPEC
|
|
#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
|
|
|
|
#undef SIZE_TYPE
|
|
#define SIZE_TYPE "unsigned int"
|
|
|
|
#undef PTRDIFF_TYPE
|
|
#define PTRDIFF_TYPE "int"
|
|
|
|
/* Use the AAPCS type for wchar_t, or the previous Linux default for
|
|
non-AAPCS. */
|
|
#undef WCHAR_TYPE
|
|
#define WCHAR_TYPE (TARGET_AAPCS_BASED ? "unsigned int" : "long int")
|
|
|
|
#undef WCHAR_TYPE_SIZE
|
|
#define WCHAR_TYPE_SIZE BITS_PER_WORD
|
|
|
|
/* Clear the instruction cache from `beg' to `end'. This makes an
|
|
inline system call to SYS_cacheflush. */
|
|
#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; \
|
|
__asm __volatile ("swi 0x9f0002 @ sys_cacheflush" \
|
|
: "=r" (_beg) \
|
|
: "0" (_beg), "r" (_end), "r" (_flg)); \
|
|
}
|