1 files changed, 84 insertions, 0 deletions
diff --git a/sysdeps/csky/sysdep.h b/sysdeps/csky/sysdep.h
new file mode 100644
index 0000000000..526a7d3bca
--- /dev/null
+++ b/sysdeps/csky/sysdep.h
@@ -0,0 +1,84 @@
+/* Assembler macros for C-SKY.
+   Copyright (C) 2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdeps/generic/sysdep.h>
+#include <features.h>
+
+#ifdef __ASSEMBLER__
+
+# define ASM_SIZE_DIRECTIVE(name) .size name,.-name
+
+/* Define an entry point visible from C.  */
+# define ENTRY(name)		\
+	.globl name;		\
+	.type name,@function;	\
+	.align 4;		\
+	name##:;		\
+	cfi_startproc;		\
+	CALL_MCOUNT
+
+# undef  END
+# define END(name)		\
+	cfi_endproc;		\
+	ASM_SIZE_DIRECTIVE(name)
+
+/* If compiled for profiling, call `mcount' at the start of each function.  */
+# ifdef PROF
+#  ifdef __PIC__
+#   define CALL_MCOUNT				\
+	subi	sp, 4;				\
+	stw	lr, (sp, 0);			\
+	grs	t0, .Lgetpc;			\
+.Lgetpc:					\
+	lrw	gb, .Lgetpc@GOTPC;		\
+	addu	gb, t0;				\
+	lrw	t1, _mcount@PLT;		\
+	ldr.w	t0, (gb, t1 << 0);		\
+	jmp	t0;
+#  else
+#   define CALL_MCOUNT				\
+	subi	sp, 4;				\
+	stw	lr, (sp, 0);			\
+	jbsr	_mcount;
+#  endif
+# else
+#  define CALL_MCOUNT	/* Do nothing.  */
+# endif
+
+# if defined (__CK860__)
+/* Instruction fetch will be faster when the label is 16 bytes aligned.
+   Filling with nop instruction to avoid extra jump.  */
+#  define LABLE_ALIGN	\
+	.balignw 16, 0x6c03
+
+#  define PRE_BNEZAD(R)
+
+#  define BNEZAD(R, L)	\
+	bnezad	R, L
+# else
+#  define LABLE_ALIGN	\
+	.balignw 8, 0x6c03
+
+#  define PRE_BNEZAD(R)	\
+	subi	R, 1
+
+#  define BNEZAD(R, L)	\
+	bnez	R, L
+# endif
+
+#endif