Add rudimentary support and stubs for libthr and libc_r on alpha, amd64,

i386, ia64 and sparc64. Add stubs for alpha, amd64, ia64 and sparc64 for
libpthread.

Restructure the source files to avoid unnecessary use of subdirectories
that also force us to use non-portable compilation flags to deal with
the uncommon compilation requirements (building archive libraries for
linkage into a shared library).

The libpthread support has been copied from the original local and
cleaned-up to make them WARNS=2 clean.
that also force us to use non-portable compilation flags to deal with
the uncommon compilation requirements (building archive libraries for
linkage into a shared library).

The libpthread support has been copied from the original local and
cleaned-up to make them WARNS=2 clean.

Tested on: amd64, i386, ia64

10 files changed, 585 insertions, 0 deletions

diff --git a/lib/libthread_db/arch/alpha/libc_r_md.c b/lib/libthread_db/arch/alpha/libc_r_md.c
new file mode 100644
index 0000000..2f0f7f7
--- /dev/null
+++ b/lib/libthread_db/arch/alpha/libc_r_md.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2004 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 ``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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/procfs.h>
+#include <machine/setjmp.h>
+
+void
+libc_r_md_getgregs(jmp_buf jb, prgregset_t *r)
+{
+	r->r_regs[R_V0] = jb->_jb[4];
+	r->r_regs[R_T0] = jb->_jb[5];
+	r->r_regs[R_T1] = jb->_jb[6];
+	r->r_regs[R_T2] = jb->_jb[7];
+	r->r_regs[R_T3] = jb->_jb[8];
+	r->r_regs[R_T4] = jb->_jb[9];
+	r->r_regs[R_T5] = jb->_jb[10];
+	r->r_regs[R_T6] = jb->_jb[11];
+	r->r_regs[R_T7] = jb->_jb[12];
+	r->r_regs[R_S0] = jb->_jb[13];
+	r->r_regs[R_S1] = jb->_jb[14];
+	r->r_regs[R_S2] = jb->_jb[15];
+	r->r_regs[R_S3] = jb->_jb[16];
+	r->r_regs[R_S4] = jb->_jb[17];
+	r->r_regs[R_S5] = jb->_jb[18];
+	r->r_regs[R_S6] = jb->_jb[19];
+	r->r_regs[R_A0] = jb->_jb[20];
+	r->r_regs[R_A1] = jb->_jb[21];
+	r->r_regs[R_A2] = jb->_jb[22];
+	r->r_regs[R_A3] = jb->_jb[23];
+	r->r_regs[R_A4] = jb->_jb[24];
+	r->r_regs[R_A5] = jb->_jb[25];
+	r->r_regs[R_T8] = jb->_jb[26];
+	r->r_regs[R_T9] = jb->_jb[27];
+	r->r_regs[R_T10] = jb->_jb[28];
+	r->r_regs[R_T11] = jb->_jb[29];
+	r->r_regs[R_RA] = jb->_jb[30];
+	r->r_regs[R_T12] = jb->_jb[31];
+	r->r_regs[R_AT] = jb->_jb[32];
+	r->r_regs[R_GP] = jb->_jb[33];
+	r->r_regs[R_SP] = jb->_jb[34];
+	r->r_regs[R_ZERO] = jb->_jb[35];
+}
+
+void
+libc_r_md_getfpregs(jmp_buf jb, prfpregset_t *r)
+{
+}
diff --git a/lib/libthread_db/arch/alpha/libpthread_md.c b/lib/libthread_db/arch/alpha/libpthread_md.c
new file mode 100644
index 0000000..4959387
--- /dev/null
+++ b/lib/libthread_db/arch/alpha/libpthread_md.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2004 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 ``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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+void
+pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
+{
+}
+
+void
+pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
+{
+}
+
+void
+pt_fpreg_to_ucontext(const struct fpreg* r, ucontext_t *uc)
+{
+}
+
+void
+pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r)
+{
+}
+
+void
+pt_md_init(void)
+{
+}
+
+int
+pt_reg_sstep(struct reg *reg, int step)
+{
+	return (0);
+}
diff --git a/lib/libthread_db/arch/amd64/libc_r_md.c b/lib/libthread_db/arch/amd64/libc_r_md.c
new file mode 100644
index 0000000..6c53953
--- /dev/null
+++ b/lib/libthread_db/arch/amd64/libc_r_md.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2004 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 ``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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/procfs.h>
+#include <machine/setjmp.h>
+
+void
+libc_r_md_getgregs(jmp_buf jb, prgregset_t *r)
+{
+}
+
+void
+libc_r_md_getfpregs(jmp_buf jb, prfpregset_t *r)
+{
+}
diff --git a/lib/libthread_db/arch/amd64/libpthread_md.c b/lib/libthread_db/arch/amd64/libpthread_md.c
new file mode 100644
index 0000000..4959387
--- /dev/null
+++ b/lib/libthread_db/arch/amd64/libpthread_md.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2004 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 ``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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+void
+pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
+{
+}
+
+void
+pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
+{
+}
+
+void
+pt_fpreg_to_ucontext(const struct fpreg* r, ucontext_t *uc)
+{
+}
+
+void
+pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r)
+{
+}
+
+void
+pt_md_init(void)
+{
+}
+
+int
+pt_reg_sstep(struct reg *reg, int step)
+{
+	return (0);
+}
diff --git a/lib/libthread_db/arch/i386/libc_r_md.c b/lib/libthread_db/arch/i386/libc_r_md.c
new file mode 100644
index 0000000..de27b68
--- /dev/null
+++ b/lib/libthread_db/arch/i386/libc_r_md.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2004 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 ``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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/procfs.h>
+#include <machine/setjmp.h>
+
+void
+libc_r_md_getgregs(jmp_buf jb, prgregset_t r)
+{
+	r->r_eip = jb->_jb[0];
+	r->r_ebx = jb->_jb[1];
+	r->r_esp = jb->_jb[2];
+	r->r_ebp = jb->_jb[3];
+	r->r_esi = jb->_jb[4];
+	r->r_edi = jb->_jb[5];
+	r->r_eax = jb->_jb[6];
+}
+
+void
+libc_r_md_getfpregs(jmp_buf jb, prfpregset_t *r)
+{
+}
diff --git a/lib/libthread_db/arch/i386/libpthread_md.c b/lib/libthread_db/arch/i386/libpthread_md.c
new file mode 100644
index 0000000..86bb88d
--- /dev/null
+++ b/lib/libthread_db/arch/i386/libpthread_md.c
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2004 David Xu <davidxu@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. 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 <string.h>
+#include <sys/types.h>
+#include <proc_service.h>
+#include <thread_db.h>
+#include <machine/npx.h>
+
+#include "libpthread_db.h"
+
+static int has_xmm_regs;
+
+void
+pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
+{
+	memcpy(&uc->uc_mcontext.mc_fs, &r->r_fs, 18*4);
+	uc->uc_mcontext.mc_gs = r->r_gs;
+}
+
+void
+pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
+{
+	memcpy(&r->r_fs, &uc->uc_mcontext.mc_fs, 18*4);
+	r->r_gs = uc->uc_mcontext.mc_gs;
+}
+
+void
+pt_fpreg_to_ucontext(const struct fpreg* r, ucontext_t *uc)
+{
+	if (!has_xmm_regs)
+		memcpy(&uc->uc_mcontext.mc_fpstate, r,
+			sizeof(struct save87));
+	else {
+		int i;
+		struct savexmm *sx = (struct savexmm *)&uc->uc_mcontext.mc_fpstate;
+		memcpy(&sx->sv_env, &r->fpr_env, sizeof(r->fpr_env));
+		for (i = 0; i < 8; ++i)
+			memcpy(&sx->sv_fp[i].fp_acc, &r->fpr_acc[i], 10);
+	}
+}
+
+void
+pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r)
+{
+	if (!has_xmm_regs)
+		memcpy(r, &uc->uc_mcontext.mc_fpstate, sizeof(struct save87));
+	else {
+		int i;
+		struct savexmm *sx = (struct savexmm *)&uc->uc_mcontext.mc_fpstate;
+		memcpy(&r->fpr_env, &sx->sv_env, sizeof(r->fpr_env));
+		for (i = 0; i < 8; ++i)
+			memcpy(&r->fpr_acc[i], &sx->sv_fp[i].fp_acc, 10);
+	}
+}
+
+void
+pt_md_init(void)
+{
+	ucontext_t uc;
+
+	getcontext(&uc);
+	if (uc.uc_mcontext.mc_fpformat == _MC_FPFMT_XMM)
+	    has_xmm_regs = 1;
+}
+
+int
+pt_reg_sstep(struct reg *reg, int step)
+{
+	unsigned int old;
+	
+	old = reg->r_eflags;
+	if (step)
+		reg->r_eflags |= 0x0100;
+	else
+		reg->r_eflags &= ~0x0100;
+	return (old != reg->r_eflags); /* changed ? */
+}
+
diff --git a/lib/libthread_db/arch/ia64/libc_r_md.c b/lib/libthread_db/arch/ia64/libc_r_md.c
new file mode 100644
index 0000000..6c53953
--- /dev/null
+++ b/lib/libthread_db/arch/ia64/libc_r_md.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2004 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 ``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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/procfs.h>
+#include <machine/setjmp.h>
+
+void
+libc_r_md_getgregs(jmp_buf jb, prgregset_t *r)
+{
+}
+
+void
+libc_r_md_getfpregs(jmp_buf jb, prfpregset_t *r)
+{
+}
diff --git a/lib/libthread_db/arch/ia64/libpthread_md.c b/lib/libthread_db/arch/ia64/libpthread_md.c
new file mode 100644
index 0000000..4959387
--- /dev/null
+++ b/lib/libthread_db/arch/ia64/libpthread_md.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2004 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 ``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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+void
+pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
+{
+}
+
+void
+pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
+{
+}
+
+void
+pt_fpreg_to_ucontext(const struct fpreg* r, ucontext_t *uc)
+{
+}
+
+void
+pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r)
+{
+}
+
+void
+pt_md_init(void)
+{
+}
+
+int
+pt_reg_sstep(struct reg *reg, int step)
+{
+	return (0);
+}
diff --git a/lib/libthread_db/arch/sparc64/libc_r_md.c b/lib/libthread_db/arch/sparc64/libc_r_md.c
new file mode 100644
index 0000000..6c53953
--- /dev/null
+++ b/lib/libthread_db/arch/sparc64/libc_r_md.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2004 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 ``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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/procfs.h>
+#include <machine/setjmp.h>
+
+void
+libc_r_md_getgregs(jmp_buf jb, prgregset_t *r)
+{
+}
+
+void
+libc_r_md_getfpregs(jmp_buf jb, prfpregset_t *r)
+{
+}
diff --git a/lib/libthread_db/arch/sparc64/libpthread_md.c b/lib/libthread_db/arch/sparc64/libpthread_md.c
new file mode 100644
index 0000000..4959387
--- /dev/null
+++ b/lib/libthread_db/arch/sparc64/libpthread_md.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2004 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 ``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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+void
+pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
+{
+}
+
+void
+pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
+{
+}
+
+void
+pt_fpreg_to_ucontext(const struct fpreg* r, ucontext_t *uc)
+{
+}
+
+void
+pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r)
+{
+}
+
+void
+pt_md_init(void)
+{
+}
+
+int
+pt_reg_sstep(struct reg *reg, int step)
+{
+	return (0);
+}