PowerPC64 libc powerpc sys files

Initial attempt to port powerpc code to powerpc64

Expects TOC loading in ENTRY(),

ok kettenis@ (some cleanup required)

8 files changed, 368 insertions, 0 deletions

diff --git a/lib/libc/arch/powerpc64/sys/Ovfork.S b/lib/libc/arch/powerpc64/sys/Ovfork.S
new file mode 100644
index 00000000000..fc084d81b2b
--- /dev/null
+++ b/lib/libc/arch/powerpc64/sys/Ovfork.S
@@ -0,0 +1,30 @@
+/* $OpenBSD: Ovfork.S,v 1.1 2020/06/25 02:38:28 drahn Exp $ */
+
+/*
+ * Copyright (c) 1996 Dale Rahn
+ *
+ * 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 AUTHOR ``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 AUTHOR 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 "SYS.h"
+
+RSYSCALL_HIDDEN(vfork)
diff --git a/lib/libc/arch/powerpc64/sys/brk.S b/lib/libc/arch/powerpc64/sys/brk.S
new file mode 100644
index 00000000000..df6354b8be4
--- /dev/null
+++ b/lib/libc/arch/powerpc64/sys/brk.S
@@ -0,0 +1,70 @@
+/* $OpenBSD: brk.S,v 1.1 2020/06/25 02:38:28 drahn Exp $ */
+
+/*
+ * Copyright (c) 1996 Dale Rahn
+ *
+ * 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 AUTHOR ``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 AUTHOR 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 "SYS.h"
+
+	.extern __curbrk
+	.extern _C_LABEL(_end)
+
+	.weak	brk
+
+PSEUDO_PREFIX(,brk,break)
+	/* check >= _end, if not make the call for _end */
+	addis 5,2,.LC0@toc@ha
+	ld  5,.LC0@toc@l(5)		/* # 5 = &_end */
+
+	cmplw	%r3,%r5
+	bge+	.L_brk_call
+	mr	%r3, %r5
+
+.L_brk_call:
+	mr	%r7, %r3
+	/* call break(size) */
+	addis	%r6, %r2, __curbrk@toc@ha
+	addi	%r6, %r6, __curbrk@toc@l	/* # 6 = &__curbrk */
+
+	sc
+
+	/* check for error */
+	cmpwi	%r0, 0
+	beq+	.L_brk_ok	/* OK so this is stupid but I haven't read b */
+	stw	%r0, R13_OFFSET_ERRNO(13)
+	li	%r3, -1
+	blr
+	nop
+
+	/* update, __curbrk and return */
+.L_brk_ok:
+	stw	%r7, 0(%r6)	/* # remember, 6=&__curbrk, 3= new value */
+	mr	%r3, 0		/* # return 0 */
+	blr
+END(brk)
+
+        .section        .toc,"aw",@progbits
+.LC0:
+        .tc _end[TC],_end
+
diff --git a/lib/libc/arch/powerpc64/sys/sbrk.S b/lib/libc/arch/powerpc64/sys/sbrk.S
new file mode 100644
index 00000000000..a737473e3a6
--- /dev/null
+++ b/lib/libc/arch/powerpc64/sys/sbrk.S
@@ -0,0 +1,63 @@
+/* $OpenBSD: sbrk.S,v 1.1 2020/06/25 02:38:28 drahn Exp $ */
+
+/*
+ * Copyright (c) 1996 Dale Rahn
+ *
+ * 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 AUTHOR ``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 AUTHOR 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 "SYS.h"
+
+	.data
+	.globl __curbrk
+	.hidden __curbrk
+__curbrk:
+	END(__curbrk)
+	.type	__curbrk,@object
+
+	.weak	sbrk
+
+	.text
+PSEUDO_PREFIX(,sbrk,break)
+	/* call break(__curbrk + size) */
+	addis	%r6, %r2, __curbrk@toc@ha
+	addi	%r6, %r6, __curbrk@toc@l	/* # %r6 = &__curbrk */
+
+	lwz	%r5, 0(%r6)			/* # %r5 = *%r6 (old_curbrk) */
+	add	%r3, %r5, %r3			/* # %r3 = new_curbrk */
+	mr	%r7, %r3
+
+	sc
+
+	/* check for error */
+	cmpwi	%r0, 0
+	beq+	.L_sbrk_ok
+	stw	%r0, R13_OFFSET_ERRNO(13)
+	li	%r3, -1
+	blr
+
+	/* update, __curbrk and return */
+.L_sbrk_ok:
+	stw	%r7, 0(6)	/* # remember, %r6=&__curbrk, %r7=new_curbrk */
+	mr	%r3, %r5	/* # remember, %r5=old_curbrk */
+	blr
+END(sbrk)
diff --git a/lib/libc/arch/powerpc64/sys/sigpending.S b/lib/libc/arch/powerpc64/sys/sigpending.S
new file mode 100644
index 00000000000..1b36eece3eb
--- /dev/null
+++ b/lib/libc/arch/powerpc64/sys/sigpending.S
@@ -0,0 +1,29 @@
+/* $OpenBSD: sigpending.S,v 1.1 2020/06/25 02:38:28 drahn Exp $ */
+/*
+ * Copyright (c) 2012 Mark Kettenis
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* sigpending(sigset_t *set); */
+
+#include "SYS.h"
+
+	.text
+PREFIX(sigpending)
+	mr	%r5, %r3
+	sc
+	stw	%r3, 0(%r5)
+	li	%r3, 0
+	blr
+SYSCALL_END(sigpending)
diff --git a/lib/libc/arch/powerpc64/sys/sigprocmask.S b/lib/libc/arch/powerpc64/sys/sigprocmask.S
new file mode 100644
index 00000000000..0767330e5ca
--- /dev/null
+++ b/lib/libc/arch/powerpc64/sys/sigprocmask.S
@@ -0,0 +1,65 @@
+/* $OpenBSD: sigprocmask.S,v 1.1 2020/06/25 02:38:28 drahn Exp $ */
+
+/*
+ * Copyright (c) 1996 Dale Rahn
+ *
+ * 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 AUTHOR ``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 AUTHOR 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.
+ */
+
+/* sigprocmask(int how, const sigset_t *set, sigset_t *oset); */
+
+#include "SYS.h"
+
+	.text
+PREFIX_HIDDEN(sigprocmask)
+	stdu	1, -32(1)
+	stw	5, 16(1)
+	
+	/* check set (new mask value) for null, in which case
+	   fiddle arguments */
+	cmpwi	4, 0
+	bne+	.L_load_set
+	addi	3, 0, 1	/* how = SIG_BLOCK, new mask already 0 */
+	b .L_do_call
+.L_load_set:
+	lwz	4, 0(4)	/* get new mask */
+.L_do_call:
+	
+	sc
+	
+	/* didnt work? */
+	cmpwi	0, 0
+	beq+	.L_sigprocmask_ok
+	stw	0, R13_OFFSET_ERRNO(13)
+	li	3, -1
+	blr
+
+.L_sigprocmask_ok:
+	lwz	5, 16(1)
+	cmpwi	5, 0
+	beq+	.L_sigprocmask_done
+	stw	3, 0(5)
+.L_sigprocmask_done:
+	li	3, 0
+	addi	1, 1, 32
+	blr
+SYSCALL_END_HIDDEN(sigprocmask)
diff --git a/lib/libc/arch/powerpc64/sys/sigsuspend.S b/lib/libc/arch/powerpc64/sys/sigsuspend.S
new file mode 100644
index 00000000000..33d80dc0dee
--- /dev/null
+++ b/lib/libc/arch/powerpc64/sys/sigsuspend.S
@@ -0,0 +1,37 @@
+/* $OpenBSD: sigsuspend.S,v 1.1 2020/06/25 02:38:28 drahn Exp $ */
+
+/*
+ * Copyright (c) 1996 Dale Rahn <drahn@openbsd.org>
+ *
+ * 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 AUTHOR ``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 AUTHOR 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.
+ */
+
+/* int sigsuspend(int *mask) */
+
+#include "SYS.h"
+
+	.text
+PREFIX_HIDDEN(sigsuspend)
+	lwz 3, 0(3)		/* load the mask */
+	sc
+	PSEUDO_SUFFIX
+SYSCALL_END_HIDDEN(sigsuspend)
diff --git a/lib/libc/arch/powerpc64/sys/syscall.S b/lib/libc/arch/powerpc64/sys/syscall.S
new file mode 100644
index 00000000000..410616cb6a9
--- /dev/null
+++ b/lib/libc/arch/powerpc64/sys/syscall.S
@@ -0,0 +1,30 @@
+/* $OpenBSD: syscall.S,v 1.1 2020/06/25 02:38:28 drahn Exp $ */
+
+/*
+ * Copyright (c) 1996 Dale Rahn <drahn@openbsd.org>
+ *
+ * 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 AUTHOR ``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 AUTHOR 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 "SYS.h"
+
+RSYSCALL(syscall)
diff --git a/lib/libc/arch/powerpc64/sys/tfork_thread.S b/lib/libc/arch/powerpc64/sys/tfork_thread.S
new file mode 100644
index 00000000000..0968077b847
--- /dev/null
+++ b/lib/libc/arch/powerpc64/sys/tfork_thread.S
@@ -0,0 +1,44 @@
+/* $OpenBSD: tfork_thread.S,v 1.1 2020/06/25 02:38:28 drahn Exp $ */
+
+/*
+ * Copyright (c) 2005 Tim Wiess <tim@nop.cx>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "SYS.h"
+
+ENTRY(__tfork_thread)
+	/* call __tfork */
+	li	%r0, SYS___tfork
+	sc
+	bne	1f
+	
+	/* check if we are parent or child */
+	cmpwi	%r3, 0
+	bnelr
+	
+	/* child */
+	mtlr	%r5		/* fp */
+	mr	%r3, %r6	/* arg */
+	subi	%r1, %r1, 32	/* fixup sp to get headroom */
+	blrl
+	
+	/* child returned, call __threxit */
+	li	%r0, SYS___threxit
+	sc
+1:
+	stw	%r0, R13_OFFSET_ERRNO(%r13)
+	li	%r3, -1
+	blr
+END(__tfork_thread)