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/* Definitions for TILEPro running Linux-based GNU systems with ELF.
Copyright (C) 2011-2020 Free Software Foundation, Inc.
Contributed by Walter Lee (walt@tilera.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/>. */
#undef CPP_SPEC
#define CPP_SPEC "%{pthread:-D_REENTRANT}"
#undef LINK_SPEC
#define LINK_SPEC "\
%{shared:-shared} \
%{!shared: \
%{!static: \
%{rdynamic:-export-dynamic} \
-dynamic-linker /lib/ld.so.1} \
%{static:-static}}"
#define NO_PROFILE_COUNTERS 1
#undef MCOUNT_NAME
#define MCOUNT_NAME "__mcount"
#undef NEED_INDICATE_EXEC_STACK
#define NEED_INDICATE_EXEC_STACK 1
#ifdef TARGET_LIBC_PROVIDES_SSP
/* TILEPro glibc provides __stack_chk_guard two pointer-size words before
tp. */
#define TARGET_THREAD_SSP_OFFSET (-2 * GET_MODE_SIZE (ptr_mode))
#endif
/* For __clear_cache in libgcc2.c. */
#ifdef IN_LIBGCC2
/* Use the minimum page size of 4K. Alternatively we can call
getpagesize() but it introduces a libc dependence.
See Linux arch/tile/include/uapi/arch/icache.h for more commentary. */
#undef CLEAR_INSN_CACHE
#define CLEAR_INSN_CACHE(BEG, END) \
{ \
long size = (long) (END) - (long) (BEG); \
if (size) \
{ \
const char *start = (const char *) ((unsigned long) (BEG) & -64L);\
const char *end = start + (size < 16384 ? size : 16384) - 1; \
long num_passes = 4; \
__insn_mf (); \
do \
{ \
const char *p; \
for (p = start; p <= end; p += 64) \
__insn_icoh (p); \
start += 4096; \
end += 4096; \
} \
while (--num_passes > 0); \
__insn_drain (); \
} \
}
#else
/* define CLEAR_INSN_CACHE so that gcc knows to expand __builtin__clear_cache
to the libraray call. */
#undef CLEAR_INSN_CACHE
#define CLEAR_INSN_CACHE 1
#endif
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