added and modified bionic code to support SuperH architecture

    modified:   libc/Android.mk
    new files:   libc/arch-sh/bionic/*
    new files:   libc/arch-sh/include/*

1 files changed, 217 insertions, 0 deletions

diff --git a/libc/arch-sh/include/machine/asm.h b/libc/arch-sh/include/machine/asm.h
new file mode 100644
index 0000000..c659a9d
--- /dev/null
+++ b/libc/arch-sh/include/machine/asm.h
@@ -0,0 +1,217 @@
+/*	$OpenBSD: asm.h,v 1.1.1.1 2006/10/06 21:02:55 miod Exp $	*/
+/*	$NetBSD: asm.h,v 1.25 2006/01/20 22:02:40 christos Exp $	*/
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)asm.h	5.5 (Berkeley) 5/7/91
+ */
+
+#ifndef _SH_ASM_H_
+#define	_SH_ASM_H_
+
+#ifdef __ELF__
+# define _C_LABEL(x)	x
+#else
+#ifdef __STDC__
+# define _C_LABEL(x)	_ ## x
+#else
+# define _C_LABEL(x)	_/**/x
+#endif
+#endif
+#define	_ASM_LABEL(x)	x
+
+#ifdef __STDC__
+# define __CONCAT(x,y)	x ## y
+# define __STRING(x)	#x
+#else
+# define __CONCAT(x,y)	x/**/y
+# define __STRING(x)	"x"
+#endif
+
+/* let kernels and others override entrypoint alignment */
+#ifndef _ALIGN_TEXT
+# define _ALIGN_TEXT .align 2
+#endif
+
+#ifdef __ELF__
+#define	_ENTRY(x)							\
+	.text								;\
+	_ALIGN_TEXT							;\
+	.globl x							;\
+	.type x,@function						;\
+	x:
+#else /* !__ELF__ */
+#define	_ENTRY(x)							\
+	.text								;\
+	_ALIGN_TEXT							;\
+	.globl x							;\
+	x:
+#endif /* !__ELF__ */
+
+#ifdef GPROF
+#define	_PROF_PROLOGUE				  \
+	mov.l	1f,r1				; \
+	mova	2f,r0				; \
+	jmp	@r1				; \
+	 nop					; \
+	.align	2				; \
+1:	.long	__mcount			; \
+2:
+#else  /* !GPROF */
+#define	_PROF_PROLOGUE
+#endif /* !GPROF */
+
+#define	ENTRY(y)	_ENTRY(_C_LABEL(y)) _PROF_PROLOGUE
+#define	NENTRY(y)	_ENTRY(_C_LABEL(y))
+#define	ASENTRY(y)	_ENTRY(_ASM_LABEL(y)) _PROF_PROLOGUE
+
+#define SET_ENTRY_SIZE(y) \
+	.size	_C_LABEL(y), . - _C_LABEL(y)
+
+#define SET_ASENTRY_SIZE(y) \
+	.size	_ASM_LABEL(y), . - _ASM_LABEL(y)
+
+#ifdef __ELF__
+#define	ALTENTRY(name)				 \
+	.globl _C_LABEL(name)			;\
+	.type _C_LABEL(name),@function		;\
+	_C_LABEL(name):
+#else
+#define	ALTENTRY(name)				 \
+	.globl _C_LABEL(name)			;\
+	_C_LABEL(name):
+#endif
+
+
+/*
+ * Hide the gory details of PIC calls vs. normal calls.  Use as in the
+ * following example:
+ *
+ *	sts.l	pr, @-sp
+ *	PIC_PROLOGUE(.L_got, r0)	! saves old r12 on stack
+ *	...
+ *	mov.l	.L_function_1, r0
+ * 1:	CALL	r0			! each call site needs a label
+ *	 nop
+ *      ...
+ *	mov.l	.L_function_2, r0
+ * 2:	CALL	r0
+ *	 nop
+ *	...
+ *	PIC_EPILOGUE			! restores r12 from stack
+ *	lds.l	@sp+, pr		!  so call in right order 
+ *	rts
+ *	 nop
+ *
+ *	.align 2
+ * .L_got:
+ *	PIC_GOT_DATUM
+ * .L_function_1:			! if you call the same function twice
+ *	CALL_DATUM(function, 1b)	!  provide call datum for each call
+ * .L_function_2:
+ * 	CALL_DATUM(function, 2b)
+ */
+
+#ifdef PIC
+
+#define	PIC_PLT(x)	x@PLT
+#define	PIC_GOT(x)	x@GOT
+#define	PIC_GOTOFF(x)	x@GOTOFF
+
+#define	PIC_PROLOGUE(got)			\
+        	mov.l	r12, @-sp;		\
+		PIC_PROLOGUE_NOSAVE(got)
+
+/*
+ * Functions that do non local jumps don't need to preserve r12,
+ * so we can shave off two instructions to save/restore it.
+ */
+#define	PIC_PROLOGUE_NOSAVE(got)		\
+        	mov.l	got, r12;		\
+        	mova	got, r0;		\
+        	add	r0, r12
+
+#define	PIC_EPILOGUE				\
+		mov.l	@sp+, r12
+
+#define PIC_EPILOGUE_SLOT 			\
+		PIC_EPILOGUE
+
+#define PIC_GOT_DATUM \
+		.long	_GLOBAL_OFFSET_TABLE_
+
+#define CALL	bsrf
+#define JUMP	braf
+
+#define CALL_DATUM(function, lpcs) \
+		.long	PIC_PLT(function) - ((lpcs) + 4 - (.))
+
+/*
+ * This will result in text relocations in the shared library,
+ * unless the function is local or has hidden or protected visibility.
+ * Does not require PIC prologue.
+ */
+#define CALL_DATUM_LOCAL(function, lpcs) \
+		.long	function - ((lpcs) + 4)
+
+#else  /* !PIC */
+
+#define	PIC_PROLOGUE(label)
+#define	PIC_PROLOGUE_NOSAVE(label)
+#define	PIC_EPILOGUE
+#define	PIC_EPILOGUE_SLOT	nop
+#define PIC_GOT_DATUM
+
+#define CALL	jsr @
+#define JUMP	jmp @
+
+#define CALL_DATUM(function, lpcs) \
+		.long	function
+
+#define CALL_DATUM_LOCAL(function, lpcs) \
+		.long	function
+
+#endif /* !PIC */
+
+
+#define	ASMSTR		.asciz
+
+#ifdef __ELF__
+#define	WEAK_ALIAS(alias,sym)						\
+	.weak _C_LABEL(alias);						\
+	_C_LABEL(alias) = _C_LABEL(sym)
+#endif
+
+#define	WARN_REFERENCES(_sym,_msg)				\
+	.section .gnu.warning._sym; .ascii _msg; .previous
+
+#endif /* !_SH_ASM_H_ */