Powerpc64 thread libraries support.

lib/libthr/arch/powerpc64/Makefile.inc

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+# $FreeBSD$
+
+.PATH: ${.CURDIR}/arch/${MACHINE_ARCH}/${MACHINE_ARCH}
+
+SRCS+=	pthread_md.c

lib/libthr/arch/powerpc64/include/pthread_md.h

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+/*
+ * Copyright 2004 by Peter Grehan. 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Machine-dependent thread prototypes/definitions.
+ */
+#ifndef _PTHREAD_MD_H_
+#define	_PTHREAD_MD_H_
+
+#include <stddef.h>
+#include <sys/types.h>
+
+#define	CPU_SPINWAIT
+
+#define	DTV_OFFSET		offsetof(struct tcb, tcb_dtv)
+#define	TP_OFFSET		0x7008
+
+/*
+ * Variant I tcb. The structure layout is fixed, don't blindly
+ * change it.
+ * %r2 points to end of the structure.
+ */
+struct tcb {
+	void			*tcb_dtv;
+	struct pthread		*tcb_thread;
+};
+
+struct tcb	*_tcb_ctor(struct pthread *, int);
+void		_tcb_dtor(struct tcb *);
+
+static __inline void
+_tcb_set(struct tcb *tcb)
+{
+	register uint8_t *_tp __asm__("%r2");
+
+	__asm __volatile("mr %0,%1" : "=r"(_tp) :
+	    "r"((uint8_t *)tcb + TP_OFFSET));
+}
+
+static __inline struct tcb *
+_tcb_get(void)
+{
+	register uint8_t *_tp __asm__("%r2");
+
+	return ((struct tcb *)(_tp - TP_OFFSET));
+}
+
+extern struct pthread *_thr_initial;
+
+static __inline struct pthread *
+_get_curthread(void)
+{
+	if (_thr_initial)
+		return (_tcb_get()->tcb_thread);
+	return (NULL);
+}
+
+#endif /* _PTHREAD_MD_H_ */

lib/libthr/arch/powerpc64/powerpc/pthread_md.c

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+/*
+ * Copyright (c) 2003 Daniel Eischen <deischen@freebsd.org>
+ * 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. Neither the name of the author 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 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/types.h>
+#include <rtld_tls.h>
+
+#include "pthread_md.h"
+
+/*
+ * The constructors.
+ */
+struct tcb *
+_tcb_ctor(struct pthread *thread, int initial)
+{
+	struct tcb *tcb;
+
+	tcb = _rtld_allocate_tls((initial) ? _tcb_get() :  NULL,
+	    sizeof(struct tcb), 1);
+	if (tcb)
+		tcb->tcb_thread = thread;
+	return (tcb);
+
+}
+
+void
+_tcb_dtor(struct tcb *tcb)
+{
+	_rtld_free_tls(tcb, sizeof(struct tcb), 1);
+}

lib/libthread_db/arch/powerpc64/libpthread_md.c

@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2006 Marcel Moolenaar
+ * 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 AUTHOR 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 AUTHOR 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 <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <string.h>
+#include <thread_db.h>
+
+#include "libpthread_db.h"
+
+void
+pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
+{
+	mcontext_t *mc = &uc->uc_mcontext;
+
+	memcpy(mc->mc_frame, r, MIN(sizeof(mc->mc_frame), sizeof(*r)));
+}
+
+void
+pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
+{
+	const mcontext_t *mc = &uc->uc_mcontext;
+
+	memcpy(r, mc->mc_frame, MIN(sizeof(mc->mc_frame), sizeof(*r)));
+}
+
+void
+pt_fpreg_to_ucontext(const struct fpreg *r, ucontext_t *uc)
+{
+	mcontext_t *mc = &uc->uc_mcontext;
+
+	memcpy(mc->mc_fpreg, r, MIN(sizeof(mc->mc_fpreg), sizeof(*r)));
+	mc->mc_flags |= _MC_FP_VALID;
+}
+
+void
+pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r)
+{
+	const mcontext_t *mc = &uc->uc_mcontext;
+
+	if (mc->mc_flags & _MC_FP_VALID)
+		memcpy(r, mc->mc_fpreg, MIN(sizeof(mc->mc_fpreg), sizeof(*r)));
+	else
+		memset(r, 0, sizeof(*r));
+}
+
+void
+pt_md_init(void)
+{
+}
+
+int
+pt_reg_sstep(struct reg *reg __unused, int step __unused)
+{
+
+	/* XXX */
+	return (0);
+}