ChangeLog

2020-02-17  Paolo Savini

	Add support for the board stm32f4-discovery.

	* config/arm/boards/stm32f4-discovery/STM32F407XG.ld: stm32f4 linker
	script.
	* config/arm/boards/stm32f4-discovery/board.cfg: stm32f4 file for
	specific cflags and ldflags.
	* config/arm/boards/stm32f4-discovery/boardsupport.c: stm32f4 file
	for support functions.
	* config/arm/boards/stm32f4-discovery/boardsupport.h: stm32f4 support
	header.
	* config/arm/boards/stm32f4-discovery/startup_stm32f407xx.S: stm32f4
	startup file.
	* config/arm/chips/cortex-m4/chip.cfg: remove -fdata-sections as
	affects performance due to the presence of -fsection-anchors as an
	ARM default flag.
	* pylib/run_stm32f4-discovery.py: add python module for the speed
	test of stm32f4-discovery.
	* src/matmult-int/matmult-int.c: reset LOCAL_SCALE_FACTOR.
	* src/picojpeg/picojpeg_test.c: Likewise.
	* src/edn/libedn.c: Likewise.
	* src/ud/libud.c: Likewise.
	* src/st/libst.c: Likewise.
	* src/slre/libslre.c: Likewise.
	* src/qrduino/qrtest.c: Likewise.
	* src/sglib-combined/combined.c: Likewise.
	* src/nettle-aes/nettle-aes.c: Likewise.
	* src/aha-mont64/mont64.c: Likewise.
	* src/huffbench/libhuffbench.c: Likewise.
	* src/nbody/nbody.c: Likewise.
	* src/wikisort/libwikisort.c: Likewise.
	* src/cubic/basicmath_small.c: Likewise.
	* src/crc32/crc_32.c: Likewise.
	* src/nettle-sha256/nettle-sha256.c: Likewise.
	* src/nsichneu/libnsichneu.c: Likewise.
	* src/statemate/libstatemate.c: Likewise.
	* src/minver/libminver.c: Likewise.

2019-10-14  Paolo Savini

	Remove initialization of new empty dictionary.

	The initialization of a new empty dictionary in
	populate_user_commands() to collect the user
	compilation flags caused user flags not to be returned by
	populate_user_commands(). Thus the extra compilation added by the user
	were ignored.

	* build-all.py: populate_user_commands(): Remove initialization of a
	new empty dictionary.

2019-08-29  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	Remove calls to library assert.

	Assert is not appropriate for benchmark code, and pulls in large
	amounts of library function code. This patches provides a
	simplified macro to replace it in two benchmarks.

	This is the fix to GitHub Issue 10, see
	https://github.com/embench/embench-iot/issues/10

	* src/nettle-aes/nettle-aes.c (_aes_set_key, aes_set_encrypt_key)
	(aes_encrypt, aes_decrypt): Replace assert with assert_beebs
	throughout.
	* src/nettle-sha256/nettle-sha256.c (nettle_hash_digest_func)
	(sha256_write_digest): Likewise.
	* support/beebsc.c: Trivial layout space adjustment.
	* support/beebsc.h (assert_beebs): Macro added.

2019-08-26  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	Add --relative option.

	This provides consistenc with benchmark_size.py.

	* benchmark_speed.py (get_common_args): Add --relative option.

2019-08-26  Graham Markall  <graham.markall@embecosm.com>

	Fix a bug in log handling.

	A patch proposed by Graham Markall and committed by Jeremy
	Bennett.

	The target-module python module needs to import the log from
	embench_core. We also rename the module to a more python friendly
	name.

	* pylib/run_gdbserver_sim.py: Rename from run-gdbserver-sim.py and
	import log from embench_core.
	* pylib/run-gdbserver-sim.py: Rename to run_gdbserver_sim.py.

2019-08-26  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	Add user specification of section names.

	This is a generalization of a patch proposed by Jon Taylor of ARM.

	It allows the user to specify which section names make up
	particular section types. Rename the --sections argument as
	--metric for clarity and add --relative option for completeness.

	* benchmark_size.py (build_parser): Add arguments to specify lists
	of sections; for clarity rename --sections to --metric.
	(validate_args): Capture the list of section names for each type
	of section.
	(benchmark_size): Use the specified section names to compute the
	metric.
	(collect_data): Rename 'sections' attribute to 'metric'.

2019-08-16  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	More Python friendly naming

	By naming the scripts using underscore, then can if ever needed be
	imported as modules.

	* benchmark-size.py: Renamed to benchmark_size.py
	* benchmark_size.py: Renamed from benchmark-size.py
	* benchmark-speed.py: Renamed to benchmark_speed.py
	* benchmark_speed.py: Renamed from benchmark-speed.py
	* build-all.py: Renamed to build_all.py
	* build_all.py: Renamed from build-all.py

2019-08-16  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	Remove all artifacts associated with Autotools and DejaGnu

	These are no longer needed, now we have a Python based build
	infrastructure.  A couple of other small cleanups are made at the
	same time.

	* .gitignore: No need to ignore autotools artifacts.
	* Makefile.am: Deleted.
	* Makefile.in: Deleted.
	* README: Deleted.
	* aclocal.m4: Deleted.
	* build-all.py: Correct an error in specifying the location of
	embench_core.py
	* compile: Deleted.
	* config.guess: Deleted.
	* config.h.in: Deleted.
	* config.sub: Deleted.
	* configure: Deleted.
	* configure.ac: Deleted.
	* depcomp: Deleted.
	* doc/Makefile.am: Deleted.
	* doc/Makefile.in: Deleted.
	* install-sh: Deleted.
	* ltmain.sh: Deleted.
	* m4/libtool.m4: Deleted.
	* m4/ltoptions.m4: Deleted.
	* m4/ltsugar.m4: Deleted.
	* m4/ltversion.m4: Deleted.
	* m4/lt~obsolete.m4: Deleted.
	* missing: Deleted.
	* src/Makefile.am: Deleted.
	* src/Makefile.in: Deleted.
	* src/aha-mont64/Makefile.am: Deleted.
	* src/aha-mont64/Makefile.in: Deleted.
	* src/common.mk.am: Deleted.
	* src/crc32/Makefile.am: Deleted.
	* src/crc32/Makefile.in: Deleted.
	* src/cubic/Makefile.am: Deleted.
	* src/cubic/Makefile.in: Deleted.
	* src/edn/Makefile.am: Deleted.
	* src/edn/Makefile.in: Deleted.
	* src/huffbench/Makefile.am: Deleted.
	* src/huffbench/Makefile.in: Deleted.
	* src/matmult-int/Makefile.am: Deleted.
	* src/matmult-int/Makefile.in: Deleted.
	* src/minver/Makefile.am: Deleted.
	* src/minver/Makefile.in: Deleted.
	* src/nbody/Makefile.am: Deleted.
	* src/nbody/Makefile.in: Deleted.
	* src/nettle-aes/Makefile.am: Deleted.
	* src/nettle-aes/Makefile.in: Deleted.
	* src/nettle-sha256/Makefile.am: Deleted.
	* src/nettle-sha256/Makefile.in: Deleted.
	* src/nsichneu/Makefile.am: Deleted.
	* src/nsichneu/Makefile.in: Deleted.
	* src/picojpeg/Makefile.am: Deleted.
	* src/picojpeg/Makefile.in: Deleted.
	* src/qrduino/Makefile.am: Deleted.
	* src/qrduino/Makefile.in: Deleted.
	* src/sglib-combined/Makefile.am: Deleted.
	* src/sglib-combined/Makefile.in: Deleted.
	* src/slre/Makefile.am: Deleted.
	* src/slre/Makefile.in: Deleted.
	* src/st/Makefile.am: Deleted.
	* src/st/Makefile.in: Deleted.
	* src/statemate/Makefile.am: Deleted.
	* src/statemate/Makefile.in: Deleted.
	* src/ud/Makefile.am: Deleted.
	* src/ud/Makefile.in: Deleted.
	* src/wikisort/Makefile.am: Deleted.
	* src/wikisort/Makefile.in: Deleted.
	* support/Makefile.am: Deleted.
	* support/Makefile.in: Deleted.
	* testsuite/ChangeLog: Deleted.
	* testsuite/Makefile.am: Deleted.
	* testsuite/Makefile.in: Deleted.
	* testsuite/beebs-conf.exp: Deleted.
	* testsuite/beebs.test/Makefile.am: Deleted.
	* testsuite/beebs.test/Makefile.in: Deleted.
	* testsuite/beebs.test/execute.exp: Deleted.
	* testsuite/beebs.test/size.exp: Deleted.
	* testsuite/config/Makefile.am: Deleted.
	* testsuite/config/Makefile.in: Deleted.
	* testsuite/config/generic.exp: Deleted.
	* testsuite/config/none.exp: Deleted.
	* testsuite/config/ri5cyverilator.exp: Deleted.
	* testsuite/lib/Makefile.am: Deleted.
	* testsuite/lib/Makefile.in: Deleted.
	* testsuite/lib/beebs.exp: Deleted.
	* testsuite/lib/mageec-wand.exp: Deleted.
	* testsuite/lib/perf-stat.exp: Deleted.

2019-08-16  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	Allow user to specify custom code to run benchmarks.

	This is a transformtion to make the benchmark_speed.py script more
	generic, ready for future expansion.

	* .gitignore: Ignore __pycache__ directories and .pylintrc.
	* benchmark-size.py: Import core files from pylib subdir.
	(collect_data): Read JSON from baseline dir.
	* benchmark-speed.py: Import core files from pylib subdir; import
	importlib.
	(build_parser): Renamed to get_common_args.
	(get_common_args): Renamed from build_parser; return arguments to
	common all invocations and remnant, which may be target specific
	arguments.
	(validate_args): Import target specific module and define global
	methods therein.
	(build_benchmark, decode_results): Deleted.
	(benchmark_speed): Take target specific argument namespaced to
	pass to the target specific code.
	(collect_data): Take remnant command line arguments and parse to
	pss to benchmark_speed; get JSON from baseline directory.
	(main): Pass remnant arguments to collect_data.
	* pylib/run-gdbserver-sim.py: Created.

2019-08-16  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	Add a script to measure execution speed.

	This is still work in progress, since the script has a lot of hard
	coding in it.

	* baseline-size.json: Clean up layout
	* baseline-speed.json: Created.
	* benchmark-size.py: Add docstring, remove logging, math and time
	imports, add imports from embench_core.
	(log, gp): Removed, since now imported from embench_core.
	(build_parser): Add "--sections" option.
	(create_logdir, setup_logging, log_args): Removed, since now
	imported from embench_core.
	(validate_args): set up sections argument.
	(find_benchmarks, log_benchmarks): Removed, since now imported
	from embench_core.
	(benchmark_size): Only benchmark for specified sections.
	(collect_data): only collect data for specified sections.
	(compute_geomean, compute_geosd, compute_georange, output_stats):
	Removed, since now imported from embench_core.
	(main): Use new version of setup_logging imported from
	embench_core; use new embench_stats function imported from
	embench_core.
	* benchmark-speed.py: Created.
	* build-all.py: Add docstring, remove logging and time imports,
	add imports from embench_core.
	(log, gp): Removed, since now imported from embench_core.
	(create_logdir, setup_logging, log_args, find_benchmarks)
	(log_benchmarks): Removed, since now imported from embench_core.
	(main): Use new version of setup_logging imported from
	embench_core; use new embench_stats function imported from
	embench_core.
	* config/riscv32/chips/speed-test/chip.cfg: Correct arguments to
	remote -msave-restore for compile flags and add -lm for user
	libraries.
	* embench_core.py: Created.

2019-08-09  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	Clean up scripts to build benchmarks and run size benchmark.

	This is mostly about linting the code.  However we fix one
	systemic bug where we were using literal sets rather than literal
	lists to iterate through dictionaries.

	* baseline-size.json: Created
	* benchmark-size.py: Remove import of shutil, subprocess and
	traceback; add import of loads from json.
	(baseline): Remove as global variable.
	(build_parser, create_logdir): Standardize layout.
	(setup_logging): Use longer variable names.
	(validate_args): Set 'builddir' global param from args; add
	'absolute' entry to global params.
	(find_benchmarks): Return benchmarks as list, use longer variable
	name for benchmark interator.
	(log_benchmarks): Pass in benchmarks as argument, use longer
	variable name for benchmark interator.
	(get_section): Add pydoc string.
	(benchmark_size): Rename argument to "bench", use longer variable
	for file handle, standardize layout.
	(collect_data, compute_geomean, compute_geosd, compute_geomaean)
	(output_stats): Created.
	(main): Rewrite statistics computation and output using
	collect_data, compute_geomean, compute_geosd, compute_geomaean and
	output_stats.
	* build-all.py (benchmarks) Remove as global variable.
	(build_parser, validate_args, create_builddir): Standardize
	layout.
	(find_benchmarks): Return benchmark list as result.
	(log_benchmarks): Take benchmark list as argument.
	(add_internal_flags, validate_tools, set_parameters): Use lists,
	not sets when iterating.
	(compile_file, compile_benchmark, compile_support): Standardize
	layout.
	(create_link_binlist): Use lists, not sets when iterating.
	(link_benchmark): Standardize layout.
	(main): Pass benchmark list between find_benchmarks and
	log_benchmarks.

2019-08-02  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	Clean up of the build-all.py script

	This tries to abstract away the details of building a commmand
	line, although the defaults are GCC/LLVM centric. So long as a
	compiler and linker accept arguments on the command line, it
	should be possible to drive a build using this script.

	The code is also much more compliant with Python coding standards.

	* build-all.py: Remove unused traceback import, define gp as empty
	dictionary.
	(build_parser): Revise arguments to command.
	(create_logdir): Remove extraneous space character.
	(setup_logging): Use PEP8 compliant variable names.
	(log_args): Rewritten for new set of arguments.
	(validate_args): Remove extraneous space, don't use len to test
	for empty arguments.
	(create_builddir): Use explicit exception names, don't raise new
	exceptions.
	(find-benchmarks): Remove extraneous space and use PEP8 compliant
	variable names.
	(log_benchmarks): Use PEP8 compliant variable names.
	(populate_defaults, populate_user_commands, populate_user_flags)
	(populate_user_pattersn, populate_user_libs, populate_user_defs)
	(populate_user, add_internal_flags, validate_tools): Created.
	(set_parameters): Rewritten to use subsidiary
	functionspopulate_defaults, populate_user_commands,
	populate_user_flags, populate_user_pattersn, populate_user_libs,
	populate_user_defs, populate_user, add_internal_flags and
	validate_tools; remove extraneous space and use PEP8 compliant
	variable names.
	(log_parameters): Use PEP8 compliant variable names.
	(compile_file): Use patterns to construct argument list,
	rename TimeoutExpired as subprocess.TimeoutExpired, reverse return
	code tests,
	(compile_benchmark, compile_support): Use PEP8 compliant variable
	names, remove extraneous space, use explicit exception names.
	(create_link_binlist, create_link_arglist): Created.
	(link_benchmark): Simplified by using functions
	create_link_binlist and create_link_arglist
	(main): Use PEP8 compliant variable names, remove extraneous
	space.
	* config/riscv32/arch.cfg: Rewritten as a set of variable
	definitions to be accessed using exec() to populate a local
	dictionary.
	* config/riscv32/boards/ri5cyverilator/board.cfg: Likewise.
	* config/riscv32/chips/size-test-gcc/chip.cfg: Likewise.
	* config/riscv32/chips/size-test-llvm/chip.cfg: Likewise.
	* config/riscv32/chips/speed-test/chip.cfg: Likewise.

2019-08-01  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	WIP on making more generic.

	We switch to allowing patterns to be used to specify how key
	arguments are added to the command line (input file, output file,
	defined constant, include directory).

	* build-all.py (build_parser): Revise argument set
	(log_args): Revise argument to match build_parser.
	(validate_args): WIP on reorganization to more logical structure.
	(set_parameters, log_parameters): WIP on reorganization.
	(compile_support, link_benchmark): WIP to be more generic command
	line construction.

2019-07-30  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	Fix riscv32 size-test-llvm configuration to match upstream.

	The -msave-restore option is not yet in upstream Clang/LLVM.
	Should be added back once this is available, since it is a
	signficant win for Clang/LLVM.

	* config/riscv32/chips/size-test-llvm/chip.cfg: Remove
	-msave-restore from cflags and ldflags.

2019-07-30  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	Add a script to compute the size benchmark.

	* benchmark-size.py: Created.
	* build-all.py (build_parser): Clearer docstring.

2019-07-26  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	Initial attempt at a Python build script.

	The configuration files are modified to set Python dictionary
	entries.  The script is designed to build out-of-tree just like
	autotools.

	* .gitignore: Add bd and logs as default build and log directories
	for new script.
	* build-all.py: Created.
	* config/riscv32/arch.cfg: Converted to Python dictionary entries.
	* config/riscv32/boards/ri5cyverilator/board.cfg: Likewise.
	* config/riscv32/chips/size-test-gcc/chip.cfg: Likewise.
	* config/riscv32/chips/size-test-llvm/chip.cfg: Likewise.
	* config/riscv32/chips/speed-test/chip.cfg: Likewise.

2019-06-13  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	Clean up a couple of annoyances

	* INSTALL: Change to reference doc/README.adoc
	* NEWS: Replace BEEBS content with Embench content.

2019-06-08  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	Fix LTO problems in the build system.

	Attempting to use Embench with BEEBS identified some key issues,
	notably around the handling of flags. CFLAGS should not be
	overridden in configure.ac or Makefile.am.

	There appears to be a bug in LTO, whereby not all functions in a
	library are retained, so dummy libraries are always compiled with
	LTO turned off.

	* Makefile.in: Regenerated.
	* config/riscv32/boards/ri5cyverilator/boardsupport.c
	(initialise_board): Clean up layout
	(start_trigger, stop_trigger): Add function attributes noinline
	and externally_visible to avoid being trampled by LTO.
	* configure: Regenerated.
	* configure.ac: Save and restore CFLAGS, so no values are set if
	user sets none, use EMBENCH_CPPFLAGS, EMBENCH_CFLAGS and
	EMBENCH_LDFLAGS to pass custom flags to buidls and DUMMY_CPPFLAGS,
	DUMMY_CFLAGS and DUMMY_LDFLAGS to remove any LTO flag when
	building dummy libraries to avoid a LTO issue.
	* doc/Makefile.in: Regenerated.
	* src/Makefile.in: Regenerated.
	* src/aha-mont64/Makefile.in: Regenerated.
	* src/common.mk.am: Pass EMBENCH_CPPFLAGS, EMBENCH_CFLAGS and
	EMBENCH_LDFLAGS to AM_CPPFLAGS, AM_CFLAGS and AM_LDFLAGS
	respectively.
	* src/crc32/Makefile.in: Regenerated.
	* src/cubic/Makefile.in: Regenerated.
	* src/edn/Makefile.in: Regenerated.
	* src/huffbench/Makefile.in: Regenerated.
	* src/matmult-int/Makefile.in: Regenerated.
	* src/minver/Makefile.in: Regenerated.
	* src/nbody/Makefile.in: Regenerated.
	* src/nettle-aes/Makefile.in: Regenerated.
	* src/nettle-sha256/Makefile.in: Regenerated.
	* src/nsichneu/Makefile.in: Regenerated.
	* src/picojpeg/Makefile.in: Regenerated.
	* src/qrduino/Makefile.in: Regenerated.
	* src/sglib-combined/Makefile.in: Regenerated.
	* src/slre/Makefile.in: Regenerated.
	* src/st/Makefile.in: Regenerated.
	* src/statemate/Makefile.in: Regenerated.
	* src/ud/Makefile.in: Regenerated.
	* src/wikisort/Makefile.in: Regenerated. Regenerated.
	* support/Makefile.am:Pass EMBENCH_CPPFLAGS, EMBENCH_CFLAGS and
	EMBENCH_LDFLAGS to AM_CPPFLAGS, AM_CFLAGS and AM_LDFLAGS
	respectively, override with DUMMY_CPPFLAGS, DUMMY_CFLAGS and
	DUMMY_LDFLAGS for dummy libraries
	* support/Makefile.in: Regenerated.
	* support/dummy-libc.c (abort): Fix layout.
	* support/main.c (main): Mark with attribute used to ensure
	start_trigger and stop_trigger are retained.
	* testsuite/Makefile.in: Regenerated.
	* testsuite/beebs.test/Makefile.in: Regenerated.
	* testsuite/config/Makefile.in: Regenerated.
	* testsuite/lib/Makefile.in: Regenerated.

2019-06-06  Jeremy Bennett  <jeremy.bennett@embecosm.com>

	Initial commit of the new repository.

	* .gitignore: Created.
	* AUTHORS: Created.
	* COPYING: Created.
	* ChangeLog: Created.
	* INSTALL: Created.
	* Makefile.am: Created.
	* Makefile.in: Created.
	* NEWS: Created.
	* README: Created.
	* README.md: Created.
	* aclocal.m4: Created.
	* compile: Created.
	* config.guess: Created.
	* config.h.in: Created.
	* config.sub: Created.
	* config/default.exp: Created.
	* config/riscv32/boards/generic/boardsupport.c: Created.
	* config/riscv32/boards/generic/boardsupport.h: Created.
	* config/riscv32/chips/size-test-gcc/chip.cfg: Created.
	* config/riscv32/chips/size-test-gcc/chipsupport.c: Created.
	* config/riscv32/chips/size-test-gcc/chipsupport.h: Created.
	* config/riscv32/chips/size-test-llvm/chip.cfg: Created.
	* config/riscv32/chips/size-test-llvm/chipsupport.c: Created.
	* config/riscv32/chips/size-test-llvm/chipsupport.h: Created.
	* config/riscv32/chips/speed-test/chip.cfg: Created.
	* config/riscv32/chips/speed-test/chipsupport.c: Created.
	* config/riscv32/chips/speed-test/chipsupport.h: Created.
	* configure: Created.
	* configure.ac: Created.
	* depcomp: Created.
	* doc/Makefile.am: Created.
	* doc/Makefile.in: Created.
	* doc/README.adoc: Created.
	* doc/custom.wordlist: Created.
	* install-sh: Created.
	* ltmain.sh: Created.
	* m4/libtool.m4: Created.
	* m4/ltoptions.m4: Created.
	* m4/ltsugar.m4: Created.
	* m4/ltversion.m4: Created.
	* m4/lt~obsolete.m4: Created.
	* missing: Created.
	* src/Makefile.am: Created.
	* src/Makefile.in: Created.
	* src/aha-mont64/Makefile.am: Created.
	* src/aha-mont64/Makefile.in: Created.
	* src/aha-mont64/mont64.c: Created.
	* src/common.mk.am: Created.
	* src/crc32/Makefile.am: Created.
	* src/crc32/Makefile.in: Created.
	* src/crc32/crc_32.c: Created.
	* src/cubic/Makefile.am: Created.
	* src/cubic/Makefile.in: Created.
	* src/cubic/basicmath_small.c: Created.
	* src/cubic/libcubic.c: Created.
	* src/cubic/pi.h: Created.
	* src/cubic/snipmath.h: Created.
	* src/cubic/sniptype.h: Created.
	* src/edn/Makefile.am: Created.
	* src/edn/Makefile.in: Created.
	* src/edn/libedn.c: Created.
	* src/huffbench/.gitignore: Created.
	* src/huffbench/Makefile.am: Created.
	* src/huffbench/Makefile.in: Created.
	* src/huffbench/libhuffbench.c: Created.
	* src/matmult-int/Makefile.am: Created.
	* src/matmult-int/Makefile.in: Created.
	* src/matmult-int/matmult-int.c: Created.
	* src/minver/Makefile.am: Created.
	* src/minver/Makefile.in: Created.
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	* testsuite/lib/Makefile.am: Created.
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	* testsuite/lib/beebs.exp: Created.
	* testsuite/lib/mageec-wand.exp: Created.
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