7 files changed, 482 insertions, 0 deletions

diff --git a/kernel/arch/sh3/asm.h b/kernel/arch/sh3/asm.h
new file mode 100644
index 000000000000..16389b5c299e
--- /dev/null
+++ b/kernel/arch/sh3/asm.h
@@ -0,0 +1,58 @@
+/*	$NetBSD: asm.h,v 1.1 2025/04/26 22:34:52 uwe Exp $	*/
+
+/*-
+ * Copyright (c) 2025 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#ifndef	TESTS_KERNEL_ARCH_SH3_ASM_H
+#define	TESTS_KERNEL_ARCH_SH3_ASM_H
+
+#include <machine/asm.h>
+
+/*
+ * We define convenience macros to hide the difference between direct
+ * and PIC function calls, but with variable accesses it gets a bit
+ * more unwieldy, so don't impose this on the general audience
+ */
+
+#ifdef __PIC__
+
+#define VAR_DATUM(v)	.long	v@GOT
+
+#define MOVL_VAR(label, reg)		\
+		mov.l	label, r0;	\
+		mov.l	@(r0, r12), reg
+
+#else
+
+#define VAR_DATUM(v)	.long	v
+
+#define MOVL_VAR(label, reg)		\
+		mov.l	label, reg;	\
+
+#endif
+
+
+#endif	/* TESTS_KERNEL_ARCH_SH3_ASM_H */
diff --git a/kernel/arch/sh3/contextspfunc.S b/kernel/arch/sh3/contextspfunc.S
new file mode 100644
index 000000000000..51e91133417e
--- /dev/null
+++ b/kernel/arch/sh3/contextspfunc.S
@@ -0,0 +1,55 @@
+/*	$NetBSD: contextspfunc.S,v 1.1 2025/04/26 22:34:52 uwe Exp $	*/
+
+/*-
+ * Copyright (c) 2025 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#include "asm.h"
+
+RCSID("$NetBSD: contextspfunc.S,v 1.1 2025/04/26 22:34:52 uwe Exp $")
+
+
+/*
+ * void contextspfunc()
+ *
+ *	makecontext(3) function.  Store the stack pointer on entry at
+ *	the global variable contextsp and call contextdone.
+ */
+ENTRY(contextspfunc)
+	mov	sp, r1
+	PIC_PROLOGUE(.L_GOT)
+
+	MOVL_VAR(.L_contextsp, r0)
+	mov.l	r1, @r0
+
+	mov.l	.L_contextdone, r0
+1:	JUMP	r0
+	 PIC_EPILOGUE_SLOT
+
+	.p2align 2
+.L_GOT:		PIC_GOT_DATUM
+.L_contextsp:	VAR_DATUM(contextsp)
+.L_contextdone:	CALL_DATUM(contextdone, 1b)
+	SET_ENTRY_SIZE(contextspfunc)
diff --git a/kernel/arch/sh3/execsp.S b/kernel/arch/sh3/execsp.S
new file mode 100644
index 000000000000..639ed4e6487b
--- /dev/null
+++ b/kernel/arch/sh3/execsp.S
@@ -0,0 +1,146 @@
+/*	$NetBSD: execsp.S,v 1.2 2025/04/27 00:03:46 riastradh Exp $	*/
+
+/*-
+ * Copyright (c) 2025 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#include "asm.h"
+
+RCSID("$NetBSD: execsp.S,v 1.2 2025/04/27 00:03:46 riastradh Exp $")
+
+
+/*
+ * void execsp_start()
+ *
+ *	ELF entry point.  Saves the stack pointer in startsp and defers
+ *	to the usual csu __start routine.
+ *
+ *	See sys/arch/sh3/sh3/sh3_machdep.c setregs()
+ */
+ENTRY(execsp_start)
+	mov	sp, r1	// for consistency, don't need to
+	PIC_PROLOGUE_NOSAVE(.L_start_GOT)
+
+	MOVL_VAR(.L_startsp, r0)
+	mov.l	r1, @r0
+
+	mov.l	.L___start, r0
+1:	JUMP	r0
+	 nop
+
+	.p2align 2
+.L_start_GOT:	PIC_GOT_DATUM
+.L_startsp:	VAR_DATUM(startsp)
+.L___start:	CALL_DATUM(__start, 1b)
+	SET_ENTRY_SIZE(execsp_start)
+
+
+/*
+ * void execsp_ctor(void)
+ *
+ *	ELF constructor.  Saves the stack pointer in ctorsp and
+ *	returns.
+ */
+ENTRY(execsp_ctor)
+	mov	sp, r1
+	PIC_PROLOGUE(.L_ctor_GOT)
+
+	MOVL_VAR(.L_ctorsp, r0)
+	mov.l	r1, @r0
+
+	rts
+	 PIC_EPILOGUE_SLOT
+
+	.p2align 2
+.L_ctor_GOT:	PIC_GOT_DATUM
+.L_ctorsp:	VAR_DATUM(ctorsp)
+	SET_ENTRY_SIZE(execsp_ctor)
+
+	/* Make execsp_ctor a constructor. */
+	.pushsection .ctors, "aw", @progbits
+	.p2align 2
+	.long	_C_LABEL(execsp_ctor)
+	.popsection
+
+
+/*
+ * int main(int argc, char **argv, ...)
+ *
+ *	Main function.  Saves the stack pointer in mainsp and returns
+ *	zero.  We will call execsp_main in execsp_dtor once dtorsp has
+ *	been initialized.
+ */
+ENTRY(main)
+	mov	sp, r1
+	PIC_PROLOGUE(.L_main_GOT)
+
+	MOVL_VAR(.L_mainsp, r0)
+	mov.l	r1, @r0
+
+	PIC_EPILOGUE
+	rts
+	 mov	#0, r0
+
+	.p2align 2
+.L_main_GOT:	PIC_GOT_DATUM
+.L_mainsp:	VAR_DATUM(mainsp)
+	SET_ENTRY_SIZE(main)
+
+
+/*
+ * void execsp_dtor(void)
+ *
+ *	ELF destructor.  Saves the stack pointer in dtorsp and defers
+ *	to the C execsp_main in h_execsp.c to report the stack pointers
+ *	back to the t_signal_and_sp parent.
+ */
+ENTRY(execsp_dtor)
+	mov	sp, r1
+	sts.l	pr, @-sp
+	PIC_PROLOGUE(.L_dtor_GOT)
+
+	MOVL_VAR(.L_dtorsp, r0)
+	mov.l	r1, @r0
+
+	mov.l	.L_execsp_main, r0
+1:	CALL	r0
+	 nop
+
+	PIC_EPILOGUE
+	lds.l	@sp+, pr
+	rts
+	 nop
+
+	.p2align 2
+.L_dtor_GOT:	PIC_GOT_DATUM
+.L_dtorsp:	VAR_DATUM(dtorsp)
+.L_execsp_main:	CALL_DATUM(execsp_main, 1b)
+	SET_ENTRY_SIZE(execsp_dtor)
+
+	/* Make execsp_ctor a destructor. */
+	.pushsection .dtors, "aw", @progbits
+	.p2align 2
+	.long	_C_LABEL(execsp_dtor)
+	.popsection
diff --git a/kernel/arch/sh3/h_execregs.S b/kernel/arch/sh3/h_execregs.S
new file mode 100644
index 000000000000..d7c91161c34a
--- /dev/null
+++ b/kernel/arch/sh3/h_execregs.S
@@ -0,0 +1,86 @@
+/*	$NetBSD: h_execregs.S,v 1.1 2025/04/27 02:24:07 uwe Exp $	*/
+
+/*-
+ * Copyright (c) 2025 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#define	_LOCORE
+#include <machine/asm.h>
+#include <machine/mcontext.h>
+#include <sys/syscall.h>
+
+
+// ELF entry point
+ENTRY(execregs_start)
+	// __gregset_t r;	// mcontext (but general regs only)
+	mov.l	sp, @-sp
+	mov.l	r0, @-sp
+	mov.l	r1, @-sp
+	mov.l	r2, @-sp
+	mov.l	r3, @-sp
+	mov.l	r4, @-sp
+	mov.l	r5, @-sp
+	mov.l	r6, @-sp
+	mov.l	r7, @-sp
+	mov.l	r8, @-sp
+	mov.l	r9, @-sp
+	mov.l	r10, @-sp
+	mov.l	r11, @-sp
+	mov.l	r12, @-sp
+	mov.l	r13, @-sp
+	mov.l	r14, @-sp
+	sts.l	pr, @-sp
+	sts.l	mach, @-sp
+	sts.l	macl, @-sp
+	mov	#0, r0
+	mov.l	r0, @-sp	// _REG_SR is privileged
+	mova	.Lend, r0	// _REG_PC
+	mov.l	@r0, r1
+	sub	r1, r0
+	mov.l	r0, @-sp
+	stc.l	gbr, @-sp
+
+	// write(STDOUT_FILENO, &r, sizeof(__gregset_t))
+	mov	#1, r4
+	mov	sp, r5
+	mov	#(_NGREG * 4), r6
+	mov	#SYS_write, r0
+	trapa	#0x80
+
+	// _exit(0)
+	mov	#0, r4
+	mov	#SYS_exit, r0
+	trapa	#0x80
+
+	.p2align 2
+.Lend:	.long	.Lend - execregs_start
+	SET_ENTRY_SIZE(execregs_start)
+
+
+// main stub to simplify linking
+ENTRY(main)
+	rts
+	 mov	#0, r0
+	SET_ENTRY_SIZE(main)
diff --git a/kernel/arch/sh3/signalsphandler.S b/kernel/arch/sh3/signalsphandler.S
new file mode 100644
index 000000000000..e0a86ae40558
--- /dev/null
+++ b/kernel/arch/sh3/signalsphandler.S
@@ -0,0 +1,61 @@
+/*	$NetBSD: signalsphandler.S,v 1.2 2025/04/26 23:49:55 uwe Exp $	*/
+
+/*-
+ * Copyright (c) 2025 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#include "asm.h"
+RCSID("$NetBSD: signalsphandler.S,v 1.2 2025/04/26 23:49:55 uwe Exp $")
+
+
+/*
+ * void signalsphandler(int signo)
+ *
+ *	Signal handler.  Store the stack pointer on entry at the global
+ *	variable signalsp and return.
+ */
+ENTRY(signalsphandler)
+	mov	sp, r1
+#ifdef __PIC__
+	// PR kern/59327: don't touch stack as SP may be misaligned
+	// and as SuperH is a strict alignment architecture, we will
+	// get SIGBUS if we try to save registers on the stack
+	mov	r12, r2
+#endif
+	PIC_PROLOGUE_NOSAVE(.L_GOT)
+
+	MOVL_VAR(.L_signalsp, r0)
+	mov.l	r1, @r0
+
+#ifdef __PIC__
+	mov	r2, r12
+#endif
+	rts
+	 nop
+
+	.p2align 2
+.L_GOT:		PIC_GOT_DATUM
+.L_signalsp:	VAR_DATUM(signalsp)
+	SET_ENTRY_SIZE(signalsphandler)
diff --git a/kernel/arch/sh3/stack_pointer.h b/kernel/arch/sh3/stack_pointer.h
new file mode 100644
index 000000000000..ed3366602f56
--- /dev/null
+++ b/kernel/arch/sh3/stack_pointer.h
@@ -0,0 +1,35 @@
+/*	$NetBSD: stack_pointer.h,v 1.1 2025/04/26 22:34:52 uwe Exp $	*/
+
+/*-
+ * Copyright (c) 2025 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#ifndef	TESTS_KERNEL_ARCH_SH3_STACK_POINTER_H
+#define	TESTS_KERNEL_ARCH_SH3_STACK_POINTER_H
+
+#define MISALIGN_SP	__asm __volatile("add #-1, sp" ::: "memory")
+#define FIX_SP		__asm __volatile("add #+1, sp" ::: "memory")
+
+#endif	/* TESTS_KERNEL_ARCH_SH3_STACK_POINTER_H */
diff --git a/kernel/arch/sh3/threadspfunc.S b/kernel/arch/sh3/threadspfunc.S
new file mode 100644
index 000000000000..de065e54191b
--- /dev/null
+++ b/kernel/arch/sh3/threadspfunc.S
@@ -0,0 +1,41 @@
+/*	$NetBSD: threadspfunc.S,v 1.1 2025/04/26 22:34:52 uwe Exp $	*/
+
+/*-
+ * Copyright (c) 2025 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#include "asm.h"
+RCSID("$NetBSD: threadspfunc.S,v 1.1 2025/04/26 22:34:52 uwe Exp $")
+
+
+/*
+ * void *threadspfunc(void *cookie)
+ *
+ *	pthread_create(3) function.  Return the stack pointer on entry.
+ */
+ENTRY(threadspfunc)
+	rts
+	 mov	sp, r0
+	SET_ENTRY_SIZE(threadspfunc)