Add an AArch64 simulator to GDB.

sim	* configure.tgt: Add aarch64 entry.
	* configure: Regenerate.
	* sim/aarch64/configure.ac: New configure template.
	* sim/aarch64/aclocal.m4: Generate.
	* sim/aarch64/config.in: Generate.
	* sim/aarch64/configure: Generate.
	* sim/aarch64/cpustate.c: New file - functions for accessing
	AArch64 registers.
	* sim/aarch64/cpustate.h: New header.
	* sim/aarch64/decode.h: New header.
	* sim/aarch64/interp.c: New file - interface between GDB and
	simulator.
	* sim/aarch64/Makefile.in: New makefile template.
	* sim/aarch64/memory.c: New file - functions for simulating
	aarch64 memory accesses.
	* sim/aarch64/memory.h: New header.
	* sim/aarch64/sim-main.h: New header.
	* sim/aarch64/simulator.c: New file - aarch64 simulator
	functions.
	* sim/aarch64/simulator.h: New header.

include/gdb * sim-aarch64.h: New file.

sim/test * configure: Regenerate.
	* sim/aarch64: New directory.

1 files changed, 12 insertions, 4 deletions

diff --git a/sim/configure b/sim/configure
index a90d352fdbc..3447321ffa7 100755
--- a/sim/configure
+++ b/sim/configure
@@ -634,7 +634,8 @@ CFLAGS
 LDFLAGS
 LIBS
 CPPFLAGS'
-ac_subdirs_all='arm
+ac_subdirs_all='aarch64
+arm
 avr
 bfin
 cr16
@@ -3625,12 +3626,19 @@ sim_common=yes
 sim_igen=no
 sim_arch=
 case "${target}" in
-   arm*-*-*)
+   aarch64*-*-*)
 
-  sim_arch=arm
+  sim_arch=aarch64
+
+
+subdirs="$subdirs aarch64"
 
 
-subdirs="$subdirs arm"
+       ;;
+   arm*-*-*)
+
+  sim_arch=arm
+  subdirs="$subdirs arm"
 
 
        ;;