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/* Declarations for C-SKY targets running Linux.
Copyright (C) 2018-2022 Free Software Foundation, Inc.
Contributed by C-SKY Microsystems and Mentor Graphics.
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/>. */
/******************************************************************
* Run-time Target Specification *
******************************************************************/
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
"%{!shared: %{pie:Scrt1.o%s;:crt1.o%s}} \
crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
#undef CC1_SPEC
#define CC1_SPEC \
"%{EB:-EB} \
%{EL:-EL} \
%{profile:-p} \
"
#undef ASM_SPEC
#define ASM_SPEC \
"%{mbig-endian:-mbig-endian} \
%{EB:-EB} \
%{EL:-EL} \
%{fpic|fPIC:-pic} \
%{mcpu=*:-mcpu=%*} \
%{march=*:-march=%*} \
%{mhard-float:-mhard-float} \
%{mfloat-abi=softfp:-mhard-float} \
%{mfloat-abi=hard:-mhard-float} \
%{melrw:-melrw} \
%{mno-elrw:-mno-elrw} \
%{mistack:-mistack} \
%{mno-istack:-mno-istack} \
%{mmp:-mmp} \
%{mcp:-mcp} \
%{mcache:-mcache} \
%{msecurity|mmac:-msecurity} \
%{mtrust:-mtrust} \
%{mdsp:-mdsp} \
%{medsp:-medsp} \
%{mvdsp:-mvdsp} \
"
#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-cskyv2%{mfloat-abi=hard:-hf}%{mbig-endian:-be}.so.1"
#define LINUX_TARGET_LINK_SPEC "%{h*} %{version:-v} \
%{b} \
%{static:-Bstatic} \
%{shared:-shared} \
%{symbolic:-Bsymbolic} \
%{!static: \
%{rdynamic:-export-dynamic} \
%{!shared:-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}} \
-X \
%{mbig-endian:-EB} %{mlittle-endian:-EL} \
%{EB:-EB} %{EL:-EL}"
#undef LINK_SPEC
#define LINK_SPEC LINUX_TARGET_LINK_SPEC
#undef LIB_SPEC
#define LIB_SPEC \
"%{pthread:-lpthread} -lc %{mccrt:-lcc-rt}"
/* FIXME add this to LIB_SPEC when need */
/* %{!shared:%{profile:-lc_p}%{!profile:-lc}}" */
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
GNU_USER_TARGET_OS_CPP_BUILTINS (); \
} \
while (0)
/* In crtstuff.c to control section in where code resides.
We have to write it as asm code. */
#ifdef __PIC__
#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
asm (SECTION_OP "\n" \
"\tgrs\tr3, .Lgetpc_"#FUNC"\n\t" \
".Lgetpc_"#FUNC":\n\t" \
"\tlrw\tr2,\t.Lgetpc_"#FUNC"@GOTPC\n\t" \
"\taddu\tr3, r2\n\t" \
"\tlrw\tr2, "#FUNC"@GOTOFF\n\t" \
"\taddu\tr2, r3\n\t" \
"\tjsr\tr2\n\t"); \
FORCE_CODE_SECTION_ALIGN \
asm (TEXT_SECTION_ASM_OP);
#endif
#undef CPP_SPEC
#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
#undef FUNCTION_PROFILER
#define SAVE_LR \
"push\tlr"
#define FUNCTION_PROFILER(file, labelno) \
fprintf (file, "\t%s\n\tjbsr\t_mcount\n", SAVE_LR);
#define NO_PROFILE_COUNTERS 1
/* Enable features only for Linux toolchains. */
#define TARGET_CSKY_LINUX 1
/* Clear the instruction cache from `BEG' to `END'. */
#define CLEAR_INSN_CACHE(BEG, END) \
cacheflush (BEG, END-BEG, 3)
/* For __clear_cache in libgcc2.c. The declaration is copied from
<sys/cachectl.h>. */
#ifdef IN_LIBGCC2
extern int cacheflush (void *__addr, const int __nbytes, const int __op);
#endif
/* The SYNC operations are implemented as library functions, not
INSN patterns. As a result, the HAVE defines for the patterns are
not defined. We need to define them to generate the corresponding
__GCC_HAVE_SYNC_COMPARE_AND_SWAP_* and __GCC_ATOMIC_*_LOCK_FREE
defines. */
#define HAVE_sync_compare_and_swapqi 1
#define HAVE_sync_compare_and_swaphi 1
#define HAVE_sync_compare_and_swapsi 1
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