Teach our toolchain how to generate 64-bit PowerPC binaries. This fixes

a variety of bugs in binutils related to handling of 64-bit PPC ELF,
provides a GCC configuration for 64-bit PowerPC on FreeBSD, and
associated build systems tweaks.

Obtained from:	projects/ppc64

18 files changed, 1096 insertions, 6 deletions

diff --git a/gnu/lib/csu/Makefile b/gnu/lib/csu/Makefile
index 306ced5..b7dcb60 100644
--- a/gnu/lib/csu/Makefile
+++ b/gnu/lib/csu/Makefile
@@ -31,7 +31,7 @@ CFLAGS+=	-x assembler-with-cpp	# Ugly hack
 CFLAGS+=	-include osreldate.h
 .undef SRCS				# hack for 'make depend'
 .endif
-.if ${MACHINE_ARCH} == "powerpc"
+.if ${MACHINE_ARCH} == "powerpc" || ${MACHINE_ARCH} == "powerpc64"
 TGTOBJS=	crtsavres.o
 SRCS+=		crtsavres.asm
 .endif
diff --git a/gnu/lib/libgcc/Makefile b/gnu/lib/libgcc/Makefile
index b54e0bd..b3480dc 100644
--- a/gnu/lib/libgcc/Makefile
+++ b/gnu/lib/libgcc/Makefile
@@ -143,6 +143,11 @@ LIB2FUNCS_EXTRA = tramp.asm
 LIB2FUNCS_STATIC_EXTRA = eabi.asm
 .endif
 
+.if ${TARGET_ARCH} == "powerpc64"
+#	from config/rs6000/t-ppccomm
+LIB2FUNCS_EXTRA = tramp.asm
+.endif
+
 .if ${TARGET_ARCH} == "sparc64"
 #	from config/sparc/t-elf
 LIB1ASMSRC =   lb1spc.asm
diff --git a/gnu/usr.bin/binutils/as/Makefile b/gnu/usr.bin/binutils/as/Makefile
index cd37311..72cbd53 100644
--- a/gnu/usr.bin/binutils/as/Makefile
+++ b/gnu/usr.bin/binutils/as/Makefile
@@ -26,7 +26,7 @@ SRCS+=	itbl-ops.c itbl-parse.y itbl-lex.l
 
 .if ${TARGET_ARCH} == "amd64"
 SRCS+=	tc-i386.c
-.elif ${TARGET_ARCH} == "powerpc"
+.elif ${TARGET_ARCH} == "powerpc" || ${TARGET_ARCH} == "powerpc64"
 SRCS+=	tc-ppc.c
 .elif ${TARGET_ARCH} == "sparc64"
 # change back to tc-sparc.c when new binutils is imported
diff --git a/gnu/usr.bin/binutils/as/powerpc64-freebsd/itbl-cpu.h b/gnu/usr.bin/binutils/as/powerpc64-freebsd/itbl-cpu.h
new file mode 100644
index 0000000..b55da9a
--- /dev/null
+++ b/gnu/usr.bin/binutils/as/powerpc64-freebsd/itbl-cpu.h
@@ -0,0 +1,6 @@
+/* $FreeBSD$ */
+
+/* Values for processors will be from 0 to NUMBER_OF_PROCESSORS-1 */
+#define NUMBER_OF_PROCESSORS 1
+
+#include "itbl-ppc.h"
diff --git a/gnu/usr.bin/binutils/as/powerpc64-freebsd/targ-cpu.h b/gnu/usr.bin/binutils/as/powerpc64-freebsd/targ-cpu.h
new file mode 100644
index 0000000..891bd6c
--- /dev/null
+++ b/gnu/usr.bin/binutils/as/powerpc64-freebsd/targ-cpu.h
@@ -0,0 +1,3 @@
+/* $FreeBSD$ */
+
+#include "tc-ppc.h"
diff --git a/gnu/usr.bin/binutils/gdb/Makefile b/gnu/usr.bin/binutils/gdb/Makefile
index ecf8cce..6e52616 100644
--- a/gnu/usr.bin/binutils/gdb/Makefile
+++ b/gnu/usr.bin/binutils/gdb/Makefile
@@ -12,6 +12,8 @@ GDBDIR= ${.CURDIR}/../../../../contrib/gdb
 GDB_CPU=	sparc
 .elif ${TARGET_ARCH} == "amd64"
 GDB_CPU=	i386
+.elif ${TARGET_ARCH} == "powerpc64"
+GDB_CPU=        powerpc
 .else
 GDB_CPU=	${TARGET_ARCH}
 .endif
diff --git a/gnu/usr.bin/binutils/gdb/Makefile.powerpc64 b/gnu/usr.bin/binutils/gdb/Makefile.powerpc64
new file mode 100644
index 0000000..4cea113
--- /dev/null
+++ b/gnu/usr.bin/binutils/gdb/Makefile.powerpc64
@@ -0,0 +1,5 @@
+# $FreeBSD$
+
+XSRCS+=	ppcnbsd-nat.c ppc-tdep.c \
+	core-regset.c
+CFLAGS+= -DDEFAULT_BFD_VEC=bfd_elf64_powerpc_vec
diff --git a/gnu/usr.bin/binutils/ld/Makefile.powerpc64 b/gnu/usr.bin/binutils/ld/Makefile.powerpc64
new file mode 100644
index 0000000..3dd3bf9
--- /dev/null
+++ b/gnu/usr.bin/binutils/ld/Makefile.powerpc64
@@ -0,0 +1,29 @@
+# $FreeBSD$
+
+NATIVE_EMULATION=	elf64ppc
+
+SRCS+=		e${NATIVE_EMULATION}.c
+CLEANFILES+=	e${NATIVE_EMULATION}.c
+e${NATIVE_EMULATION}.c: emulparams/${NATIVE_EMULATION}.sh emultempl/elf32.em \
+    scripttempl/elf.sc genscripts.sh stringify.sed
+	sh ${.CURDIR}/genscripts.sh ${SRCDIR}/ld ${LIBSERACHPATH} \
+	    ${TOOLS_PREFIX}/usr \
+	    ${HOST} ${TARGET_TUPLE} ${TARGET_TUPLE} \
+	    ${NATIVE_EMULATION} ""  no ${NATIVE_EMULATION} ${TARGET_TUPLE}
+
+PPC32_EMULATION= elf32ppc
+_ppc32_path=	\"${TOOLS_PREFIX}/usr/lib32\"
+EMS+=		${PPC32_EMULATION}
+.for ext in ${ELF_SCR_EXT}
+LDSCRIPTS+=	${PPC32_EMULATION}.${ext}
+.endfor
+
+SRCS+=		e${PPC32_EMULATION}.c
+CLEANFILES+=	e${PPC32_EMULATION}.c
+e${PPC32_EMULATION}.c: emulparams/${PPC32_EMULATION}.sh emultempl/elf32.em \
+    scripttempl/elf.sc genscripts.sh stringify.sed
+	sh ${.CURDIR}/genscripts.sh ${SRCDIR}/ld ${_ppc32_path} \
+	    ${TOOLS_PREFIX}/usr \
+	    ${HOST} ${TARGET_TUPLE} ${TARGET_TUPLE} \
+	    ${PPC32_EMULATION} "" no ${PPC32_EMULATION} ${TARGET_TUPLE}
+
diff --git a/gnu/usr.bin/binutils/libbfd/Makefile b/gnu/usr.bin/binutils/libbfd/Makefile
index 3bd512c..8ace1e2 100644
--- a/gnu/usr.bin/binutils/libbfd/Makefile
+++ b/gnu/usr.bin/binutils/libbfd/Makefile
@@ -24,6 +24,8 @@ SELARCH=
 SELARCH= &bfd_i386_arch
 .elif ${TARGET_ARCH} == "sparc64"
 SELARCH= &bfd_sparc_arch
+.elif ${TARGET_ARCH} == "powerpc64"
+SELARCH= &bfd_powerpc_arch,&bfd_rs6000_arch
 .else
 .for _a in ${ARCHS}
 .if ${SELARCH} == ""
diff --git a/gnu/usr.bin/binutils/libbfd/Makefile.powerpc64 b/gnu/usr.bin/binutils/libbfd/Makefile.powerpc64
new file mode 100644
index 0000000..d65e3d1
--- /dev/null
+++ b/gnu/usr.bin/binutils/libbfd/Makefile.powerpc64
@@ -0,0 +1,27 @@
+# $FreeBSD$
+
+ARCHS+=	rs6000
+
+DEFAULT_VECTOR=	bfd_elf64_powerpc_vec
+
+SRCS+=	cpu-powerpc.c	\
+	cpu-rs6000.c	\
+	elf32.c		\
+	elf32-gen.c	\
+	elf32-ppc.c	\
+	elf32-target.h	\
+	elflink.c	\
+	elf64.c		\
+	elf64-gen.c	\
+	elf64-ppc.c	\
+	elf64-target.h	\
+	elflink.c	\
+	ppcboot.c	\
+	xcofflink.c
+
+VECS+=	${DEFAULT_VECTOR} \
+	bfd_elf64_powerpcle_vec	\
+	bfd_elf32_powerpc_vec \
+	bfd_elf32_powerpcle_vec \
+	ppcboot_vec
+
diff --git a/gnu/usr.bin/binutils/libopcodes/Makefile.powerpc64 b/gnu/usr.bin/binutils/libopcodes/Makefile.powerpc64
new file mode 100644
index 0000000..cc010ec
--- /dev/null
+++ b/gnu/usr.bin/binutils/libopcodes/Makefile.powerpc64
@@ -0,0 +1,4 @@
+# $FreeBSD$
+
+SRCS+=	ppc-dis.c ppc-opc.c
+CFLAGS+= -DARCH_powerpc -DARCH_rs6000
diff --git a/gnu/usr.bin/cc/Makefile.tgt b/gnu/usr.bin/cc/Makefile.tgt
index 3cb9678..5e036bc 100644
--- a/gnu/usr.bin/cc/Makefile.tgt
+++ b/gnu/usr.bin/cc/Makefile.tgt
@@ -4,7 +4,7 @@ TARGET_ARCH?=	${MACHINE_ARCH}
 
 .if ${TARGET_ARCH} == "amd64"
 GCC_CPU=	i386
-.elif ${TARGET_ARCH} == "powerpc"
+.elif ${TARGET_ARCH} == "powerpc" || ${TARGET_ARCH} == "powerpc64"
 GCC_CPU=	rs6000
 .elif ${TARGET_ARCH} == "sparc64"
 GCC_CPU=	sparc
@@ -18,3 +18,7 @@ TARGET_CPU_DEFAULT= MASK_GNU_AS|MASK_GNU_LD
 .if ${TARGET_ARCH} == "sparc64"
 TARGET_CPU_DEFAULT= TARGET_CPU_ultrasparc
 .endif
+.if ${TARGET_ARCH} == "powerpc64"
+TARGET_CPU_DEFAULT= \"powerpc64\"
+.endif
+
diff --git a/gnu/usr.bin/cc/cc_tools/Makefile b/gnu/usr.bin/cc/cc_tools/Makefile
index f248313..87ad642 100644
--- a/gnu/usr.bin/cc/cc_tools/Makefile
+++ b/gnu/usr.bin/cc/cc_tools/Makefile
@@ -52,6 +52,10 @@ TARGET_INC+=	${GCC_CPU}/elf.h
 .if ${TARGET_ARCH} == "arm"
 TARGET_INC+=	${GCC_CPU}/aout.h
 .endif
+.if ${TARGET_ARCH} == "powerpc64"
+TARGET_INC+=	${GCC_CPU}/biarch64.h
+TARGET_INC+=    ${GCC_CPU}/default64.h
+.endif
 TARGET_INC+=	${GCC_CPU}/freebsd.h
 .if ${TARGET_ARCH} == "amd64"
 TARGET_INC+=	${GCC_CPU}/freebsd64.h
@@ -171,7 +175,7 @@ OPT_FILES+=	${GCCDIR}/config/${GCC_CPU}/${GCC_CPU}.opt
 OPT_FILES+=	${.CURDIR}/${GCC_CPU}-freebsd.opt
 .endif
 
-.if ${TARGET_ARCH} == "powerpc"
+.if ${TARGET_ARCH} == "powerpc" || ${TARGET_ARCH} == "powerpc64"
 OPT_FILES+=	${GCCDIR}/config/${GCC_CPU}/sysv4.opt
 .endif
 
@@ -303,12 +307,22 @@ GENSRCS+=	gcov-iov.h
 
 # Multilib config file
 multilib.h:
+.if ${TARGET_ARCH} == "powerpc64"
+	echo 'static const char *const multilib_raw[] = { \
+	    ". !m64 !m32;", \
+	    "64:../lib m64 !m32;", \
+	    "32:../lib32 !m64 m32;", NULL };'			> ${.TARGET}
+	echo 'static const char *multilib_options = "m64/m32";'	>> ${.TARGET}
+	echo 'static const char *const multilib_matches_raw[] = { \
+	    "m64 m64;", "m32 m32;", NULL };'			>> ${.TARGET}
+.else
 	echo 'static const char *const multilib_raw[] = { \
 	    ". ;", NULL };'					> ${.TARGET}
+	echo 'static const char *multilib_options = "";'	>> ${.TARGET}
 	echo 'static const char *const multilib_matches_raw[] = { \
 	    NULL };'						>> ${.TARGET}
+.endif
 	echo 'static const char *multilib_extra = "";'		>> ${.TARGET}
-	echo 'static const char *multilib_options = "";'	>> ${.TARGET}
 	echo 'static const char *const multilib_exclusions_raw[] = { \
 	    NULL };'						>> ${.TARGET}
 
diff --git a/gnu/usr.bin/cc/include/Makefile b/gnu/usr.bin/cc/include/Makefile
index 210218a..6b883c4 100644
--- a/gnu/usr.bin/cc/include/Makefile
+++ b/gnu/usr.bin/cc/include/Makefile
@@ -12,7 +12,7 @@ INCS=	emmintrin.h mmintrin.h pmmintrin.h xmmintrin.h mm_malloc.h
 INCS=	ia64intrin.h
 .elif ${TARGET_ARCH} == "arm"
 INCS=	mmintrin.h
-.elif ${TARGET_ARCH} == "powerpc"
+.elif ${TARGET_ARCH} == "powerpc" || ${TARGET_ARCH} == "powerpc64"
 INCS=	ppc-asm.h altivec.h spe.h
 .endif
 
diff --git a/gnu/usr.bin/gdb/arch/powerpc64/Makefile b/gnu/usr.bin/gdb/arch/powerpc64/Makefile
new file mode 100644
index 0000000..fa41a23
--- /dev/null
+++ b/gnu/usr.bin/gdb/arch/powerpc64/Makefile
@@ -0,0 +1,14 @@
+# $FreeBSD$
+
+.if !defined(GDB_CROSS_DEBUGGER)
+LIBSRCS+= fbsd-proc.c fbsd-threads.c gcore.c
+LIBSRCS+= ppcfbsd-nat.c
+.endif
+LIBSRCS+= solib.c solib-svr4.c
+LIBSRCS+= ppc-sysv-tdep.c ppcfbsd-tdep.c rs6000-tdep.c
+
+nm.h:
+	echo '#include "powerpc/nm-fbsd.h"' > ${.TARGET}
+
+tm.h:
+	echo '#include "powerpc/tm-ppc-eabi.h"' > ${.TARGET}
diff --git a/gnu/usr.bin/gdb/arch/powerpc64/config.h b/gnu/usr.bin/gdb/arch/powerpc64/config.h
new file mode 100644
index 0000000..d8b9b6d
--- /dev/null
+++ b/gnu/usr.bin/gdb/arch/powerpc64/config.h
@@ -0,0 +1,553 @@
+/* $FreeBSD$ */
+
+/* config.h.  Generated automatically by configure.  */
+/* config.in.  Generated automatically from configure.in by autoheader.  */
+
+/* Define if on AIX 3.
+   System headers sometimes define this.
+   We just want to avoid a redefinition error message.  */
+#ifndef _ALL_SOURCE
+/* #undef _ALL_SOURCE */
+#endif
+
+/* Define if using alloca.c.  */
+/* #undef C_ALLOCA */
+
+/* Define to empty if the keyword does not work.  */
+/* #undef const */
+
+/* Define to one of _getb67, GETB67, getb67 for Cray-2 and Cray-YMP systems.
+   This function is required for alloca.c support on those systems.  */
+/* #undef CRAY_STACKSEG_END */
+
+/* Define if you have alloca, as a function or macro.  */
+#define HAVE_ALLOCA 1
+
+/* Define if you have <alloca.h> and it should be used (not on Ultrix).  */
+/* #undef HAVE_ALLOCA_H */
+
+/* Define if the `long double' type works.  */
+#define HAVE_LONG_DOUBLE 1
+
+/* Define if you have a working `mmap' system call.  */
+#define HAVE_MMAP 1
+
+/* Define if you have <vfork.h>.  */
+/* #undef HAVE_VFORK_H */
+
+/* Define as __inline if that's what the C compiler calls it.  */
+/* #undef inline */
+
+/* Define to `long' if <sys/types.h> doesn't define.  */
+/* #undef off_t */
+
+/* Define to `int' if <sys/types.h> doesn't define.  */
+/* #undef pid_t */
+
+/* Define if you need to in order for stat and other things to work.  */
+/* #undef _POSIX_SOURCE */
+
+/* Define as the return type of signal handlers (int or void).  */
+#define RETSIGTYPE void
+
+/* Define if the `setpgrp' function takes no argument.  */
+/* #undef SETPGRP_VOID */
+
+/* Define to `unsigned' if <sys/types.h> doesn't define.  */
+/* #undef size_t */
+
+/* If using the C implementation of alloca, define if you know the
+   direction of stack growth for your system; otherwise it will be
+   automatically deduced at run-time.
+ STACK_DIRECTION > 0 => grows toward higher addresses
+ STACK_DIRECTION < 0 => grows toward lower addresses
+ STACK_DIRECTION = 0 => direction of growth unknown
+ */
+/* #undef STACK_DIRECTION */
+
+/* Define if the `S_IS*' macros in <sys/stat.h> do not work properly.  */
+/* #undef STAT_MACROS_BROKEN */
+
+/* Define if you have the ANSI C header files.  */
+#define STDC_HEADERS 1
+
+/* Define vfork as fork if vfork does not work.  */
+/* #undef vfork */
+
+/* Enable GNU extensions on systems that have them.  */
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE 1
+#endif
+
+/* Define if your struct reg has r_fs.  */
+/* #undef HAVE_STRUCT_REG_R_FS */
+
+/* Define if your struct stat has st_blocks.  */
+#define HAVE_STRUCT_STAT_ST_BLOCKS 1
+
+/* Define if your struct reg has r_gs.  */
+/* #undef HAVE_STRUCT_REG_R_GS */
+
+/* Define if <link.h> exists and defines struct link_map which has
+   members with an ``l_'' prefix.  (For Solaris, SVR4, and
+   SVR4-like systems.) */
+#define HAVE_STRUCT_LINK_MAP_WITH_L_MEMBERS 1
+
+/* Define if <link.h> exists and defines struct link_map which has
+  members with an ``lm_'' prefix.  (For SunOS.)  */
+/* #undef HAVE_STRUCT_LINK_MAP_WITH_LM_MEMBERS */
+
+/* Define if <link.h> exists and defines a struct so_map which has
+  members with an ``som_'' prefix.  (Found on older *BSD systems.)  */
+/* #undef HAVE_STRUCT_SO_MAP_WITH_SOM_MEMBERS */
+
+/* Define if <sys/link.h> has struct link_map32 */
+/* #undef HAVE_STRUCT_LINK_MAP32 */
+
+/* Define if <sys/link.h> has link_map32 (solaris sparc-64 target) */
+/* #undef _SYSCALL32 */
+
+/* Define if the prfpregset_t type is broken. */
+/* #undef PRFPREGSET_T_BROKEN */
+
+/* Define if you want to use new multi-fd /proc interface
+   (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros). */
+/* #undef NEW_PROC_API */
+
+/* Define if ioctl argument PIOCSET is available. */
+/* #undef HAVE_PROCFS_PIOCSET */
+
+/* Define if the `long long' type works.  */
+#define CC_HAS_LONG_LONG 1
+
+/* Define if the "ll" format works to print long long ints. */
+#define PRINTF_HAS_LONG_LONG 1
+
+/* Define if the "%Lg" format works to print long doubles. */
+#define PRINTF_HAS_LONG_DOUBLE 1
+
+/* Define if the "%Lg" format works to scan long doubles. */
+#define SCANF_HAS_LONG_DOUBLE 1
+
+/* Define if using Solaris thread debugging.  */
+/* #undef HAVE_THREAD_DB_LIB */
+
+/* Define on a GNU/Linux system to work around problems in sys/procfs.h.  */
+/* #undef START_INFERIOR_TRAPS_EXPECTED */
+/* #undef sys_quotactl */
+
+/* Define if you have HPUX threads */
+/* #undef HAVE_HPUX_THREAD_SUPPORT */
+
+/* Define if <proc_service.h> on solaris uses int instead of
+   size_t, and assorted other type changes. */
+/* #undef PROC_SERVICE_IS_OLD */
+
+/* Define if the simulator is being linked in.  */
+#define WITH_SIM 1
+
+/* Set to true if the save_state_t structure is present */
+/* #undef HAVE_STRUCT_SAVE_STATE_T */
+
+/* Set to true if the save_state_t structure has the ss_wide member */
+/* #undef HAVE_STRUCT_MEMBER_SS_WIDE */
+
+/* Define if <sys/ptrace.h> defines the PTRACE_GETREGS request.  */
+/* #undef HAVE_PTRACE_GETREGS */
+
+/* Define if <sys/ptrace.h> defines the PTRACE_GETFPXREGS request.  */
+/* #undef HAVE_PTRACE_GETFPXREGS */
+
+/* Define if <sys/ptrace.h> defines the PT_GETDBREGS request.  */
+#define HAVE_PT_GETDBREGS 1
+
+/* Define if <sys/ptrace.h> defines the PT_GETXMMREGS request.  */
+/* #undef HAVE_PT_GETXMMREGS */
+
+/* Define if libunwind library is being used.  */
+/* #undef HAVE_LIBUNWIND */
+
+/* hostfile */
+/* #undef GDB_XM_FILE */
+
+/* targetfile */
+#define GDB_TM_FILE config/powerpc/tm-ppc-eabi.h
+
+/* nativefile */
+#ifndef CROSS_DEBUGGER
+#define GDB_NM_FILE config/ia64/nm-fbsd.h
+#endif
+
+/* Define to 1 so <sys/proc.h> gets a definition of anon_hdl.  Works
+   around a <sys/proc.h> problem on IRIX 5.  */
+#ifndef _KMEMUSER
+/* #undef _KMEMUSER */
+#endif
+
+/* Define if you have the __argz_count function.  */
+/* #undef HAVE___ARGZ_COUNT */
+
+/* Define if you have the __argz_next function.  */
+/* #undef HAVE___ARGZ_NEXT */
+
+/* Define if you have the __argz_stringify function.  */
+/* #undef HAVE___ARGZ_STRINGIFY */
+
+/* Define if you have the _mcleanup function.  */
+#define HAVE__MCLEANUP 1
+
+/* Define if you have the canonicalize_file_name function.  */
+/* #undef HAVE_CANONICALIZE_FILE_NAME */
+
+/* Define if you have the dcgettext function.  */
+/* #undef HAVE_DCGETTEXT */
+
+/* Define if you have the getcwd function.  */
+#define HAVE_GETCWD 1
+
+/* Define if you have the getpagesize function.  */
+#define HAVE_GETPAGESIZE 1
+
+/* Define if you have the monstartup function.  */
+#define HAVE_MONSTARTUP 1
+
+/* Define if you have the munmap function.  */
+#define HAVE_MUNMAP 1
+
+/* Define if you have the poll function.  */
+#define HAVE_POLL 1
+
+/* Define if you have the pread64 function.  */
+/* #undef HAVE_PREAD64 */
+
+/* Define if you have the putenv function.  */
+#define HAVE_PUTENV 1
+
+/* Define if you have the realpath function.  */
+#define HAVE_REALPATH 1
+
+/* Define if you have the sbrk function.  */
+#define HAVE_SBRK 1
+
+/* Define if you have the setenv function.  */
+#define HAVE_SETENV 1
+
+/* Define if you have the setlocale function.  */
+#define HAVE_SETLOCALE 1
+
+/* Define if you have the setpgid function.  */
+#define HAVE_SETPGID 1
+
+/* Define if you have the setpgrp function.  */
+#define HAVE_SETPGRP 1
+
+/* Define if you have the sigaction function.  */
+#define HAVE_SIGACTION 1
+
+/* Define if you have the sigprocmask function.  */
+#define HAVE_SIGPROCMASK 1
+
+/* Define if you have the sigsetmask function.  */
+#define HAVE_SIGSETMASK 1
+
+/* Define if you have the socketpair function.  */
+#define HAVE_SOCKETPAIR 1
+
+/* Define if you have the stpcpy function.  */
+#define HAVE_STPCPY 1
+
+/* Define if you have the strcasecmp function.  */
+#define HAVE_STRCASECMP 1
+
+/* Define if you have the strchr function.  */
+#define HAVE_STRCHR 1
+
+/* Define if you have the syscall function.  */
+#define HAVE_SYSCALL 1
+
+/* Define if you have the <argz.h> header file.  */
+/* #undef HAVE_ARGZ_H */
+
+/* Define if you have the <ctype.h> header file.  */
+#define HAVE_CTYPE_H 1
+
+/* Define if you have the <curses.h> header file.  */
+#define HAVE_CURSES_H 1
+
+/* Define if you have the <dirent.h> header file.  */
+#define HAVE_DIRENT_H 1
+
+/* Define if you have the <libunwind-ia64.h> header file.  */
+/* #undef HAVE_LIBUNWIND_IA64_H */
+
+/* Define if you have the <libunwind.h> header file.  */
+/* #undef HAVE_LIBUNWIND_H */
+
+/* Define if you have the <limits.h> header file.  */
+#define HAVE_LIMITS_H 1
+
+/* Define if you have the <link.h> header file.  */
+#define HAVE_LINK_H 1
+
+/* Define if you have the <locale.h> header file.  */
+#define HAVE_LOCALE_H 1
+
+/* Define if you have the <machine/reg.h> header file.  */
+#define HAVE_MACHINE_REG_H 1
+
+/* Define if you have the <malloc.h> header file.  */
+/* #undef HAVE_MALLOC_H */
+
+/* Define if you have the <memory.h> header file.  */
+#define HAVE_MEMORY_H 1
+
+/* Define if you have the <ncurses.h> header file.  */
+#define HAVE_NCURSES_H 1
+
+/* Define if you have the <ndir.h> header file.  */
+/* #undef HAVE_NDIR_H */
+
+/* Define if you have the <nl_types.h> header file.  */
+#define HAVE_NL_TYPES_H 1
+
+/* Define if you have the <nlist.h> header file.  */
+#define HAVE_NLIST_H 1
+
+/* Define if you have the <poll.h> header file.  */
+#define HAVE_POLL_H 1
+
+/* Define if you have the <proc_service.h> header file.  */
+/* #undef HAVE_PROC_SERVICE_H */
+
+/* Define if you have the <ptrace.h> header file.  */
+/* #undef HAVE_PTRACE_H */
+
+/* Define if you have the <sgtty.h> header file.  */
+#define HAVE_SGTTY_H 1
+
+/* Define if you have the <stddef.h> header file.  */
+#define HAVE_STDDEF_H 1
+
+/* Define if you have the <stdint.h> header file.  */
+#define HAVE_STDINT_H 1
+
+/* Define if you have the <stdlib.h> header file.  */
+#define HAVE_STDLIB_H 1
+
+/* Define if you have the <string.h> header file.  */
+#define HAVE_STRING_H 1
+
+/* Define if you have the <strings.h> header file.  */
+#define HAVE_STRINGS_H 1
+
+/* Define if you have the <sys/debugreg.h> header file.  */
+/* #undef HAVE_SYS_DEBUGREG_H */
+
+/* Define if you have the <sys/dir.h> header file.  */
+/* #undef HAVE_SYS_DIR_H */
+
+/* Define if you have the <sys/fault.h> header file.  */
+/* #undef HAVE_SYS_FAULT_H */
+
+/* Define if you have the <sys/file.h> header file.  */
+#define HAVE_SYS_FILE_H 1
+
+/* Define if you have the <sys/filio.h> header file.  */
+#define HAVE_SYS_FILIO_H 1
+
+/* Define if you have the <sys/ioctl.h> header file.  */
+#define HAVE_SYS_IOCTL_H 1
+
+/* Define if you have the <sys/ndir.h> header file.  */
+/* #undef HAVE_SYS_NDIR_H */
+
+/* Define if you have the <sys/param.h> header file.  */
+#define HAVE_SYS_PARAM_H 1
+
+/* Define if you have the <sys/poll.h> header file.  */
+#define HAVE_SYS_POLL_H 1
+
+/* Define if you have the <sys/proc.h> header file.  */
+#define HAVE_SYS_PROC_H 1
+
+/* Define if you have the <sys/procfs.h> header file.  */
+#define HAVE_SYS_PROCFS_H 1
+
+/* Define if you have the <sys/ptrace.h> header file.  */
+#define HAVE_SYS_PTRACE_H 1
+
+/* Define if you have the <sys/reg.h> header file.  */
+/* #undef HAVE_SYS_REG_H */
+
+/* Define if you have the <sys/select.h> header file.  */
+#define HAVE_SYS_SELECT_H 1
+
+/* Define if you have the <sys/syscall.h> header file.  */
+#define HAVE_SYS_SYSCALL_H 1
+
+/* Define if you have the <sys/user.h> header file.  */
+#define HAVE_SYS_USER_H 1
+
+/* Define if you have the <sys/wait.h> header file.  */
+#define HAVE_SYS_WAIT_H 1
+
+/* Define if you have the <term.h> header file.  */
+#define HAVE_TERM_H 1
+
+/* Define if you have the <termio.h> header file.  */
+/* #undef HAVE_TERMIO_H */
+
+/* Define if you have the <termios.h> header file.  */
+#define HAVE_TERMIOS_H 1
+
+/* Define if you have the <thread_db.h> header file.  */
+/* #undef HAVE_THREAD_DB_H */
+
+/* Define if you have the <time.h> header file.  */
+#define HAVE_TIME_H 1
+
+/* Define if you have the <unistd.h> header file.  */
+#define HAVE_UNISTD_H 1
+
+/* Define if you have the <values.h> header file.  */
+/* #undef HAVE_VALUES_H */
+
+/* Define if you have the <wait.h> header file.  */
+/* #undef HAVE_WAIT_H */
+
+/* Define if you have the dl library (-ldl).  */
+/* #undef HAVE_LIBDL */
+
+/* Define if you have the m library (-lm).  */
+#define HAVE_LIBM 1
+
+/* Define if you have the w library (-lw).  */
+/* #undef HAVE_LIBW */
+
+/* Define if you have the stpcpy function */
+#define HAVE_STPCPY 1
+
+/* Define if your locale.h file contains LC_MESSAGES. */
+#define HAVE_LC_MESSAGES 1
+
+/* Define to 1 if NLS is requested */
+/* #undef ENABLE_NLS */
+
+/* Define as 1 if you have gettext and don't want to use GNU gettext. */
+/* #undef HAVE_GETTEXT */
+
+/* Name of this package.  */
+#define PACKAGE "gdb"
+
+/* Global directory for separate debug files.  */
+#define DEBUGDIR "/usr/local/lib/debug"
+
+/* Define to BFD's default architecture.  */
+#define DEFAULT_BFD_ARCH bfd_rs6000_arch
+
+/* Define to BFD's default target vector.  */
+#define DEFAULT_BFD_VEC bfd_elf64_powerpc_vec
+
+/* Define to 1 if your system has the _etext variable.  */
+#define HAVE__ETEXT 1
+
+/* Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
+   Solaris 2.[78] when using GCC.  */
+/* #undef _MSE_INT_H */
+
+/* Define to 1 if we found this declaration otherwise define to 0. */
+#define HAVE_DECL_GETOPT 0
+
+/* Define if sigsetjmp is available.  */
+#define HAVE_SIGSETJMP 1
+
+/* Define to 1 if the regex included in libiberty should be used. */
+#define USE_INCLUDED_REGEX 1
+
+/* Define to 1 if your system has struct reg in <machine/reg.h>. */
+#define HAVE_STRUCT_REG 1
+
+/* Define if <stdint.h> provides the uintptr_t type. */
+#define HAVE_UINTPTR_T 1
+
+/* Define if malloc is not declared in system header files. */
+/* #undef NEED_DECLARATION_MALLOC */
+
+/* Define if realloc is not declared in system header files. */
+/* #undef NEED_DECLARATION_REALLOC */
+
+/* Define if free is not declared in system header files. */
+/* #undef NEED_DECLARATION_FREE */
+
+/* Define if strerror is not declared in system header files. */
+/* #undef NEED_DECLARATION_STRERROR */
+
+/* Define if strdup is not declared in system header files. */
+/* #undef NEED_DECLARATION_STRDUP */
+
+/* Define if strstr is not declared in system header files. */
+/* #undef NEED_DECLARATION_STRSTR */
+
+/* Define if canonicalize_file_name is not declared in system header files. */
+#define NEED_DECLARATION_CANONICALIZE_FILE_NAME 1
+
+/* Define if <sys/procfs.h> has pstatus_t. */
+/* #undef HAVE_PSTATUS_T */
+
+/* Define if <sys/procfs.h> has prrun_t. */
+/* #undef HAVE_PRRUN_T */
+
+/* Define if <sys/procfs.h> has gregset_t. */
+#define HAVE_GREGSET_T 1
+
+/* Define if <sys/procfs.h> has fpregset_t. */
+#define HAVE_FPREGSET_T 1
+
+/* Define if <sys/procfs.h> has prgregset_t. */
+#define HAVE_PRGREGSET_T 1
+
+/* Define if <sys/procfs.h> has prfpregset_t. */
+#define HAVE_PRFPREGSET_T 1
+
+/* Define if <sys/procfs.h> has prgregset32_t. */
+/* #undef HAVE_PRGREGSET32_T */
+
+/* Define if <sys/procfs.h> has prfpregset32_t. */
+/* #undef HAVE_PRFPREGSET32_T */
+
+/* Define if <sys/procfs.h> has lwpid_t. */
+#define HAVE_LWPID_T 1
+
+/* Define if <sys/procfs.h> has psaddr_t. */
+#define HAVE_PSADDR_T 1
+
+/* Define if <sys/procfs.h> has prsysent_t. */
+/* #undef HAVE_PRSYSENT_T */
+
+/* Define if <sys/procfs.h> has pr_sigset_t. */
+/* #undef HAVE_PR_SIGSET_T */
+
+/* Define if <sys/procfs.h> has pr_sigaction64_t. */
+/* #undef HAVE_PR_SIGACTION64_T */
+
+/* Define if <sys/procfs.h> has pr_siginfo64_t. */
+/* #undef HAVE_PR_SIGINFO64_T */
+
+/* Define if <thread_db.h> has the TD_NOTALLOC error code. */
+/* #undef THREAD_DB_HAS_TD_NOTALLOC */
+
+/* Define if we can use the tkill syscall. */
+/* #undef HAVE_TKILL_SYSCALL */
+
+/* Define to the default OS ABI for this configuration. */
+/* #undef GDB_OSABI_DEFAULT */
+
+/* Define to be a string naming the default host character set. */
+#define GDB_DEFAULT_HOST_CHARSET "ISO-8859-1"
+
+/* Define if you have the iconv() function. */
+/* #undef HAVE_ICONV */
+
+/* Define as const if the declaration of iconv() needs const. */
+/* #undef ICONV_CONST */
+
diff --git a/gnu/usr.bin/gdb/arch/powerpc64/init.c b/gnu/usr.bin/gdb/arch/powerpc64/init.c
new file mode 100644
index 0000000..5b96bd5
--- /dev/null
+++ b/gnu/usr.bin/gdb/arch/powerpc64/init.c
@@ -0,0 +1,230 @@
+/* $FreeBSD$ */
+
+/* Do not modify this file.  */
+/* It is created automatically by the Makefile.  */
+#include "defs.h"      /* For initialize_file_ftype.  */
+#include "call-cmds.h" /* For initialize_all_files.  */
+extern initialize_file_ftype _initialize_gdbtypes;
+extern initialize_file_ftype _initialize_rs6000_tdep;
+extern initialize_file_ftype _initialize_ppcfbsd_tdep;
+extern initialize_file_ftype _initialize_corelow;
+extern initialize_file_ftype _initialize_solib;
+extern initialize_file_ftype _initialize_svr4_solib;
+extern initialize_file_ftype _initialize_ser_hardwire;
+extern initialize_file_ftype _initialize_ser_pipe;
+extern initialize_file_ftype _initialize_ser_tcp;
+extern initialize_file_ftype _initialize_fbsd_proc;
+extern initialize_file_ftype _initialize_gcore;
+extern initialize_file_ftype _initialize_kernel_u_addr;
+extern initialize_file_ftype _initialize_infptrace;
+extern initialize_file_ftype _initialize_inftarg;
+extern initialize_file_ftype _initialize_ppcfbsd_nat;
+extern initialize_file_ftype _initialize_thread_db;
+extern initialize_file_ftype _initialize_remote;
+extern initialize_file_ftype _initialize_dcache;
+extern initialize_file_ftype _initialize_sr_support;
+extern initialize_file_ftype _initialize_tracepoint;
+extern initialize_file_ftype _initialize_ax_gdb;
+extern initialize_file_ftype _initialize_annotate;
+extern initialize_file_ftype _initialize_auxv;
+extern initialize_file_ftype _initialize_breakpoint;
+extern initialize_file_ftype _initialize_regcache;
+extern initialize_file_ftype _initialize_charset;
+extern initialize_file_ftype _initialize_dummy_frame;
+extern initialize_file_ftype _initialize_source;
+extern initialize_file_ftype _initialize_values;
+extern initialize_file_ftype _initialize_valops;
+extern initialize_file_ftype _initialize_valarith;
+extern initialize_file_ftype _initialize_valprint;
+extern initialize_file_ftype _initialize_printcmd;
+extern initialize_file_ftype _initialize_symtab;
+extern initialize_file_ftype _initialize_symfile;
+extern initialize_file_ftype _initialize_symmisc;
+extern initialize_file_ftype _initialize_infcall;
+extern initialize_file_ftype _initialize_infcmd;
+extern initialize_file_ftype _initialize_infrun;
+extern initialize_file_ftype _initialize_stack;
+extern initialize_file_ftype _initialize_thread;
+extern initialize_file_ftype _initialize_interpreter;
+extern initialize_file_ftype _initialize_macrocmd;
+extern initialize_file_ftype _initialize_gdbarch;
+extern initialize_file_ftype _initialize_gdbarch_utils;
+extern initialize_file_ftype _initialize_gdb_osabi;
+extern initialize_file_ftype _initialize_copying;
+extern initialize_file_ftype _initialize_mem;
+extern initialize_file_ftype _initialize_parse;
+extern initialize_file_ftype _initialize_language;
+extern initialize_file_ftype _initialize_frame_reg;
+extern initialize_file_ftype _initialize_signals;
+extern initialize_file_ftype _initialize_kod;
+extern initialize_file_ftype _initialize_gdb_events;
+extern initialize_file_ftype _initialize_exec;
+extern initialize_file_ftype _initialize_maint_cmds;
+extern initialize_file_ftype _initialize_demangler;
+extern initialize_file_ftype _initialize_dbxread;
+extern initialize_file_ftype _initialize_coffread;
+extern initialize_file_ftype _initialize_elfread;
+extern initialize_file_ftype _initialize_mipsread;
+extern initialize_file_ftype _initialize_stabsread;
+extern initialize_file_ftype _initialize_core;
+extern initialize_file_ftype _initialize_dwarf2_frame;
+extern initialize_file_ftype _initialize_c_language;
+extern initialize_file_ftype _initialize_f_language;
+extern initialize_file_ftype _initialize_objc_language;
+extern initialize_file_ftype _initialize_ui_out;
+extern initialize_file_ftype _initialize_cli_out;
+extern initialize_file_ftype _initialize_varobj;
+extern initialize_file_ftype _initialize_java_language;
+extern initialize_file_ftype _initialize_m2_language;
+extern initialize_file_ftype _initialize_pascal_language;
+extern initialize_file_ftype _initialize_pascal_valprint;
+extern initialize_file_ftype _initialize_scheme_language;
+extern initialize_file_ftype _initialize_complaints;
+extern initialize_file_ftype _initialize_typeprint;
+extern initialize_file_ftype _initialize_cp_valprint;
+extern initialize_file_ftype _initialize_f_valprint;
+extern initialize_file_ftype _initialize_nlmread;
+extern initialize_file_ftype _initialize_serial;
+extern initialize_file_ftype _initialize_mdebugread;
+extern initialize_file_ftype _initialize_user_regs;
+extern initialize_file_ftype _initialize_frame;
+extern initialize_file_ftype _initialize_frame_unwind;
+extern initialize_file_ftype _initialize_frame_base;
+extern initialize_file_ftype _initialize_gnu_v2_abi;
+extern initialize_file_ftype _initialize_gnu_v3_abi;
+extern initialize_file_ftype _initialize_hpacc_abi;
+extern initialize_file_ftype _initialize_cp_abi;
+extern initialize_file_ftype _initialize_cp_support;
+extern initialize_file_ftype _initialize_cp_namespace;
+extern initialize_file_ftype _initialize_reggroup;
+extern initialize_file_ftype _initialize_inflow;
+extern initialize_file_ftype _initialize_cli_dump;
+extern initialize_file_ftype _initialize_cli_logging;
+extern initialize_file_ftype _initialize_cli_interp;
+extern initialize_file_ftype _initialize_mi_out;
+extern initialize_file_ftype _initialize_mi_cmds;
+extern initialize_file_ftype _initialize_mi_cmd_env;
+extern initialize_file_ftype _initialize_mi_interp;
+extern initialize_file_ftype _initialize_mi_main;
+extern initialize_file_ftype _initialize_tui_hooks;
+extern initialize_file_ftype _initialize_tui_interp;
+extern initialize_file_ftype _initialize_tui_layout;
+extern initialize_file_ftype _initialize_tui_out;
+extern initialize_file_ftype _initialize_tui_regs;
+extern initialize_file_ftype _initialize_tui_stack;
+extern initialize_file_ftype _initialize_tui_win;
+void
+initialize_all_files (void)
+{
+  _initialize_gdbtypes ();
+  _initialize_rs6000_tdep ();
+  _initialize_ppcfbsd_tdep ();
+  _initialize_corelow ();
+  _initialize_solib ();
+  _initialize_svr4_solib ();
+  _initialize_ser_hardwire ();
+  _initialize_ser_pipe ();
+  _initialize_ser_tcp ();
+#ifndef CROSS_DEBUGGER
+  _initialize_fbsd_proc ();
+  _initialize_gcore ();
+  _initialize_kernel_u_addr ();
+  _initialize_infptrace ();
+  _initialize_inftarg ();
+  _initialize_ppcfbsd_nat ();
+  _initialize_thread_db ();
+#endif
+  _initialize_remote ();
+  _initialize_dcache ();
+  _initialize_sr_support ();
+  _initialize_tracepoint ();
+  _initialize_ax_gdb ();
+  _initialize_annotate ();
+  _initialize_auxv ();
+  _initialize_breakpoint ();
+  _initialize_regcache ();
+  _initialize_charset ();
+  _initialize_dummy_frame ();
+  _initialize_source ();
+  _initialize_values ();
+  _initialize_valops ();
+  _initialize_valarith ();
+  _initialize_valprint ();
+  _initialize_printcmd ();
+  _initialize_symtab ();
+  _initialize_symfile ();
+  _initialize_symmisc ();
+  _initialize_infcall ();
+  _initialize_infcmd ();
+  _initialize_infrun ();
+  _initialize_stack ();
+  _initialize_thread ();
+  _initialize_interpreter ();
+  _initialize_macrocmd ();
+  _initialize_gdbarch ();
+  _initialize_gdbarch_utils ();
+  _initialize_gdb_osabi ();
+  _initialize_copying ();
+  _initialize_mem ();
+  _initialize_parse ();
+  _initialize_language ();
+  _initialize_frame_reg ();
+  _initialize_signals ();
+  _initialize_kod ();
+  _initialize_gdb_events ();
+  _initialize_exec ();
+  _initialize_maint_cmds ();
+  _initialize_demangler ();
+  _initialize_dbxread ();
+  _initialize_coffread ();
+  _initialize_elfread ();
+  _initialize_mipsread ();
+  _initialize_stabsread ();
+  _initialize_core ();
+  _initialize_dwarf2_frame ();
+  _initialize_c_language ();
+  _initialize_f_language ();
+  _initialize_objc_language ();
+  _initialize_ui_out ();
+  _initialize_cli_out ();
+  _initialize_varobj ();
+  _initialize_java_language ();
+  _initialize_m2_language ();
+  _initialize_pascal_language ();
+  _initialize_pascal_valprint ();
+  _initialize_scheme_language ();
+  _initialize_complaints ();
+  _initialize_typeprint ();
+  _initialize_cp_valprint ();
+  _initialize_f_valprint ();
+  _initialize_nlmread ();
+  _initialize_serial ();
+  _initialize_mdebugread ();
+  _initialize_user_regs ();
+  _initialize_frame ();
+  _initialize_frame_unwind ();
+  _initialize_frame_base ();
+  _initialize_gnu_v2_abi ();
+  _initialize_gnu_v3_abi ();
+  _initialize_hpacc_abi ();
+  _initialize_cp_abi ();
+  _initialize_cp_support ();
+  _initialize_cp_namespace ();
+  _initialize_reggroup ();
+  _initialize_inflow ();
+  _initialize_cli_dump ();
+  _initialize_cli_logging ();
+  _initialize_cli_interp ();
+  _initialize_mi_out ();
+  _initialize_mi_cmds ();
+  _initialize_mi_cmd_env ();
+  _initialize_mi_interp ();
+  _initialize_mi_main ();
+  _initialize_tui_hooks ();
+  _initialize_tui_interp ();
+  _initialize_tui_layout ();
+  _initialize_tui_out ();
+  _initialize_tui_regs ();
+  _initialize_tui_stack ();
+  _initialize_tui_win ();
+}
diff --git a/gnu/usr.bin/gdb/kgdb/trgt_powerpc64.c b/gnu/usr.bin/gdb/kgdb/trgt_powerpc64.c
new file mode 100644
index 0000000..d20a4d6
--- /dev/null
+++ b/gnu/usr.bin/gdb/kgdb/trgt_powerpc64.c
@@ -0,0 +1,192 @@
+/*-
+ * 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 ``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/types.h>
+#include <machine/pcb.h>
+#include <machine/frame.h>
+#include <err.h>
+#include <kvm.h>
+#include <string.h>
+
+#include <defs.h>
+#include <target.h>
+#include <gdbthread.h>
+#include <inferior.h>
+#include <regcache.h>
+#include <frame-unwind.h>
+#include <ppc-tdep.h>
+
+#include "kgdb.h"
+
+void
+kgdb_trgt_fetch_registers(int regno __unused)
+{
+	struct kthr *kt;
+	struct pcb pcb;
+	struct gdbarch_tdep *tdep;
+	int i;
+
+	tdep = gdbarch_tdep (current_gdbarch);
+
+	kt = kgdb_thr_lookup_tid(ptid_get_pid(inferior_ptid));
+	if (kt == NULL)
+		return;
+	if (kvm_read(kvm, kt->pcb, &pcb, sizeof(pcb)) != sizeof(pcb)) {
+		warnx("kvm_read: %s", kvm_geterr(kvm));
+		memset(&pcb, 0, sizeof(pcb));
+	}
+
+	/*
+	 * r14-r31 are saved in the pcb
+	 */
+	for (i = 14; i <= 31; i++) {
+		supply_register(tdep->ppc_gp0_regnum + i,
+		    (char *)&pcb.pcb_context[i]);
+	}
+
+	/* r1 is saved in the sp field */
+	supply_register(tdep->ppc_gp0_regnum + 1, (char *)&pcb.pcb_sp);
+	/* r2 is saved in the toc field */
+	supply_register(tdep->ppc_gp0_regnum + 2, (char *)&pcb.pcb_toc);
+
+	supply_register(tdep->ppc_lr_regnum, (char *)&pcb.pcb_lr);
+	supply_register(tdep->ppc_cr_regnum, (char *)&pcb.pcb_cr);
+}
+
+void
+kgdb_trgt_store_registers(int regno __unused)
+{
+	fprintf_unfiltered(gdb_stderr, "XXX: %s\n", __func__);
+}
+
+void
+kgdb_trgt_new_objfile(struct objfile *objfile)
+{
+}
+
+struct kgdb_frame_cache {
+	CORE_ADDR	pc;
+	CORE_ADDR	sp;
+};
+
+static struct kgdb_frame_cache *
+kgdb_trgt_frame_cache(struct frame_info *next_frame, void **this_cache)
+{
+	char buf[MAX_REGISTER_SIZE];
+	struct kgdb_frame_cache *cache;
+
+	cache = *this_cache;
+	if (cache == NULL) {
+		cache = FRAME_OBSTACK_ZALLOC(struct kgdb_frame_cache);
+		*this_cache = cache;
+		cache->pc = frame_func_unwind(next_frame);
+		frame_unwind_register(next_frame, SP_REGNUM, buf);
+		cache->sp = extract_unsigned_integer(buf,
+		    register_size(current_gdbarch, SP_REGNUM));
+	}
+	return (cache);
+}
+
+static void
+kgdb_trgt_trapframe_this_id(struct frame_info *next_frame, void **this_cache,
+    struct frame_id *this_id)
+{
+	struct kgdb_frame_cache *cache;
+
+	cache = kgdb_trgt_frame_cache(next_frame, this_cache);
+	*this_id = frame_id_build(cache->sp, cache->pc);
+}
+
+static void
+kgdb_trgt_trapframe_prev_register(struct frame_info *next_frame,
+    void **this_cache, int regnum, int *optimizedp, enum lval_type *lvalp,
+    CORE_ADDR *addrp, int *realnump, void *valuep)
+{
+	char dummy_valuep[MAX_REGISTER_SIZE];
+	struct gdbarch_tdep *tdep;
+	struct kgdb_frame_cache *cache;
+	int ofs, regsz;
+
+	tdep = gdbarch_tdep(current_gdbarch);
+	regsz = register_size(current_gdbarch, regnum);
+
+	if (valuep == NULL)
+		valuep = dummy_valuep;
+	memset(valuep, 0, regsz);
+	*optimizedp = 0;
+	*addrp = 0;
+	*lvalp = not_lval;
+	*realnump = -1;
+
+	if (regnum >= tdep->ppc_gp0_regnum &&
+	    regnum <= tdep->ppc_gplast_regnum)
+		ofs = offsetof(struct trapframe,
+		    fixreg[regnum - tdep->ppc_gp0_regnum]);
+	else if (regnum == tdep->ppc_lr_regnum)
+		ofs = offsetof(struct trapframe, lr);
+	else if (regnum == tdep->ppc_cr_regnum)
+		ofs = offsetof(struct trapframe, cr);
+	else if (regnum == tdep->ppc_xer_regnum)
+		ofs = offsetof(struct trapframe, xer);
+	else if (regnum == tdep->ppc_ctr_regnum)
+		ofs = offsetof(struct trapframe, ctr);
+	else if (regnum == PC_REGNUM)
+		ofs = offsetof(struct trapframe, srr0);
+	else
+		return;
+
+	cache = kgdb_trgt_frame_cache(next_frame, this_cache);
+	*addrp = cache->sp + 48 + ofs;
+	*lvalp = lval_memory;
+	target_read_memory(*addrp, valuep, regsz);
+}
+
+static const struct frame_unwind kgdb_trgt_trapframe_unwind = {
+        UNKNOWN_FRAME,
+        &kgdb_trgt_trapframe_this_id,
+        &kgdb_trgt_trapframe_prev_register
+};
+
+const struct frame_unwind *
+kgdb_trgt_trapframe_sniffer(struct frame_info *next_frame)
+{
+	char *pname;
+	CORE_ADDR pc;
+
+	pc = frame_pc_unwind(next_frame);
+	pname = NULL;
+	find_pc_partial_function(pc, &pname, NULL, NULL);
+	if (pname == NULL)
+		return (NULL);
+	if (strcmp(pname, "asttrapexit") == 0 ||
+	    strcmp(pname, "trapexit") == 0)
+		return (&kgdb_trgt_trapframe_unwind);
+	/* printf("%s: %llx =%s\n", __func__, pc, pname); */
+	return (NULL);
+}