vendor/NetBSD/tests/2026.02.14_2vendor/NetBSD/tests

5 files changed, 329 insertions, 0 deletions

diff --git a/kernel/arch/sparc/contextspfunc.S b/kernel/arch/sparc/contextspfunc.S
new file mode 100644
index 000000000000..a24185cabd73
--- /dev/null
+++ b/kernel/arch/sparc/contextspfunc.S
@@ -0,0 +1,64 @@
+/*	$NetBSD: contextspfunc.S,v 1.1 2025/04/21 02:33:45 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.
+ */
+
+#define	_LOCORE
+
+#include <machine/asm.h>
+
+RCSID("$NetBSD: contextspfunc.S,v 1.1 2025/04/21 02:33:45 riastradh Exp $")
+
+#ifdef __PIC__
+#define	SETHI(label, got, reg)						      \
+	set	label, reg;		/* reg := &label - &GOT */	      \
+	ld	[got + reg], reg	/* reg := &label */
+#define	LO(label, reg)							      \
+	reg
+#else
+#define	SETHI(label, got, reg)						      \
+	sethi	%hi(label), reg		/* reg := &label - %lo(label) */
+#define	LO(label, reg)							      \
+	reg + %lo(label)
+#endif
+
+	.text
+
+/*
+ * contextspfunc()
+ *
+ *	makecontext(3) function.  Store the stack pointer on entry at
+ *	the global variable contextsp and call contextdone.
+ */
+ENTRY(contextspfunc)
+	/* Reminder: o6 is frame pointer, o7 + 8 is return address. */
+	PIC_PROLOGUE(%g1, %o5)			/* g1 := &GOT, clobber o5 */
+	SETHI(_C_LABEL(contextsp), %g1, %o5)	/* o5 := &contextsp */
+	call	_C_LABEL(contextdone)		/* jump to contextdone */
+	 st	%sp, [LO(_C_LABEL(contextsp), %o5)] /* contextsp := sp */
+	/* don't care what happens here, caller must never return */
+	ta	1				/* Tcc, trap always */
+END(contextspfunc)
diff --git a/kernel/arch/sparc/execsp.S b/kernel/arch/sparc/execsp.S
new file mode 100644
index 000000000000..4b225dd6d550
--- /dev/null
+++ b/kernel/arch/sparc/execsp.S
@@ -0,0 +1,123 @@
+/*	$NetBSD: execsp.S,v 1.1 2025/04/20 22:33:41 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.
+ */
+
+#define	_LOCORE
+
+#include <machine/asm.h>
+
+RCSID("$NetBSD: execsp.S,v 1.1 2025/04/20 22:33:41 riastradh Exp $")
+
+#ifdef __PIC__
+#define	SETHI(label, got, reg)						      \
+	set	label, reg;		/* reg := &label - &GOT */	      \
+	ld	[got + reg], reg	/* reg := &label */
+#define	LO(label, reg)							      \
+	reg
+#else
+#define	SETHI(label, got, reg)						      \
+	sethi	%hi(label), reg		/* reg := &label - %lo(label) */
+#define	LO(label, reg)							      \
+	reg + %lo(label)
+#endif
+
+	.text
+
+/*
+ * void execsp_start(struct ps_strings *ps_strings@g1,
+ *     void *obj_main@g2, void (*cleanup@g3)(void))
+ *
+ *	ELF entry point.  Saves the stack pointer in startsp and defers
+ *	to the usual csu __start routine.
+ */
+ENTRY(execsp_start)
+	PIC_PROLOGUE(%o1, %o2)			/* o1 := GOT, clobber o2 */
+	SETHI(_C_LABEL(startsp), %o1, %o2)	/* o2 := &startup */
+	call	_C_LABEL(__start)		/* jump to start via PLT */
+	 st	%sp, [LO(_C_LABEL(startsp), %o2)] /* startsp := sp */
+	/* don't care what happens here, caller must never return */
+	ta	1				/* Tcc, trap always */
+END(execsp_start)
+
+/*
+ * void execsp_ctor(void)
+ *
+ *	ELF constructor.  Saves the stack pointer in ctorsp and
+ *	returns.
+ */
+ENTRY(execsp_ctor)
+	/* Reminder: o6 is frame pointer, o7 + 8 is return address. */
+	PIC_PROLOGUE(%g1, %o5)			/* g1 := &GOT, clobber o5 */
+	SETHI(_C_LABEL(ctorsp), %g1, %o5)	/* o5 := &ctorsp */
+	retl					/* return to caller */
+	 st	%sp, [LO(_C_LABEL(ctorsp), %o5)] /* ctorsp := sp */
+END(execsp_ctor)
+
+	/* Make execsp_ctor a constructor. */
+	.pushsection .ctors,"aw",@progbits
+	.p2align 2
+	.long	_C_LABEL(execsp_ctor)
+	.popsection
+
+/*
+ * int main(int argc@a0, char **argv@a1, ...)
+ *
+ *	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)
+	/* Reminder: o6 is frame pointer, o7 + 8 is return address. */
+	PIC_PROLOGUE(%g1, %o5)			/* g1 := &GOT, clobber o5 */
+	SETHI(_C_LABEL(mainsp), %g1, %o5)	/* o5 := &mainsp */
+	st	%sp, [LO(_C_LABEL(mainsp), %o5)] /* mainsp := sp */
+	retl					/* return to caller */
+	 mov	0, %o0				/* return 0 */
+END(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)
+	/* Reminder: o6 is frame pointer, o7 + 8 is return address. */
+	PIC_PROLOGUE(%g1, %o5)			/* g1 := &GOT, clobber o5 */
+	SETHI(_C_LABEL(dtorsp), %g1, %o5)	/* o5 := &dtorsp - &GOT */
+	st	%sp, [LO(_C_LABEL(dtorsp), %o5)] /* dtorsp := sp */
+	mov	%o7, %o5			/* save return address */
+	call	_C_LABEL(execsp_main)		/* tail call to execsp_main */
+	 mov	%o5, %o7			/* restore return address */
+END(execsp_dtor)
+
+	/* Make execsp_ctor a destructor. */
+	.pushsection .dtors,"aw",@progbits
+	.p2align 2
+	.long	_C_LABEL(execsp_dtor)
+	.popsection
diff --git a/kernel/arch/sparc/signalsphandler.S b/kernel/arch/sparc/signalsphandler.S
new file mode 100644
index 000000000000..187091d23c01
--- /dev/null
+++ b/kernel/arch/sparc/signalsphandler.S
@@ -0,0 +1,62 @@
+/*	$NetBSD: signalsphandler.S,v 1.1 2025/04/20 22:33:41 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.
+ */
+
+#define	_LOCORE
+
+#include <machine/asm.h>
+
+RCSID("$NetBSD: signalsphandler.S,v 1.1 2025/04/20 22:33:41 riastradh Exp $")
+
+#ifdef __PIC__
+#define	SETHI(label, got, reg)						      \
+	set	label, reg;		/* reg := &label - &GOT */	      \
+	ld	[got + reg], reg	/* reg := &label */
+#define	LO(label, reg)							      \
+	reg
+#else
+#define	SETHI(label, got, reg)						      \
+	sethi	%hi(label), reg		/* reg := &label - %lo(label) */
+#define	LO(label, reg)							      \
+	reg + %lo(label)
+#endif
+
+	.text
+
+/*
+ * signalsphandler(signo@o0)
+ *
+ *	Signal handler.  Store the stack pointer on entry at the global
+ *	variable signalsp and return.
+ */
+ENTRY(signalsphandler)
+	/* Reminder: o6 is frame pointer, o7 + 8 is return address. */
+	PIC_PROLOGUE(%g1, %o5)			/* g1 := &GOT, clobber o5 */
+	SETHI(_C_LABEL(signalsp), %g1, %o5)	/* o5 := &signalsp */
+	retl					/* return to caller */
+	 st	%sp, [LO(_C_LABEL(signalsp), %o5)] /* signalsp := sp */
+END(signalsphandler)
diff --git a/kernel/arch/sparc/stack_pointer.h b/kernel/arch/sparc/stack_pointer.h
new file mode 100644
index 000000000000..20c06bec77cd
--- /dev/null
+++ b/kernel/arch/sparc/stack_pointer.h
@@ -0,0 +1,35 @@
+/*	$NetBSD: stack_pointer.h,v 1.1 2025/04/20 22:33:41 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.
+ */
+
+#ifndef	TESTS_KERNEL_ARCH_SPARC_STACK_POINTER_H
+#define	TESTS_KERNEL_ARCH_SPARC_STACK_POINTER_H
+
+#define MISALIGN_SP	__asm __volatile("dec %%sp" ::: "memory")
+#define FIX_SP		__asm __volatile("inc %%sp" ::: "memory")
+
+#endif	/* TESTS_KERNEL_ARCH_SPARC_STACK_POINTER_H */
diff --git a/kernel/arch/sparc/threadspfunc.S b/kernel/arch/sparc/threadspfunc.S
new file mode 100644
index 000000000000..794804d85741
--- /dev/null
+++ b/kernel/arch/sparc/threadspfunc.S
@@ -0,0 +1,45 @@
+/*	$NetBSD: threadspfunc.S,v 1.1 2025/04/21 02:33:45 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.
+ */
+
+#define	_LOCORE
+
+#include <machine/asm.h>
+
+RCSID("$NetBSD: threadspfunc.S,v 1.1 2025/04/21 02:33:45 riastradh Exp $")
+
+	.text
+
+/*
+ * void *threadspfunc(void *cookie@o0)
+ *
+ *	pthread_create(3) function.  Return the stack pointer on entry.
+ */
+ENTRY(threadspfunc)
+	retl				/* return to caller */
+	 mov	%sp, %o0		/* return sp */
+END(threadspfunc)