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