1 # Copyright (C) 2013 Free Software Foundation, Inc.
2 # This file is part of the GNU C Library.
4 # The GNU C Library is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU Lesser General Public
6 # License as published by the Free Software Foundation; either
7 # version 2.1 of the License, or (at your option) any later version.
9 # The GNU C Library is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 # Lesser General Public License for more details.
14 # You should have received a copy of the GNU Lesser General Public
15 # License along with the GNU C Library; if not, see
16 # <http://www.gnu.org/licenses/>.
19 # Makefile for benchmark tests. The only useful target here is `bench`.
20 # Add benchmark functions in alphabetical order.
23 bench
:= acos acosh asin asinh atan atanh cos cosh exp log modf pow rint sin \
24 sincos sinh sqrt tan tanh
26 # String function benchmarks.
27 string-bench
:= bcopy bzero memccpy memchr memcmp memcpy memmem memmove \
28 mempcpy memset rawmemchr stpcpy stpncpy strcasecmp strcasestr \
29 strcat strchr strchrnul strcmp strcpy strcspn strlen \
30 strncasecmp strncat strncmp strncpy strnlen strpbrk strrchr \
31 strspn strstr strcpy_chk stpcpy_chk memrchr strsep
32 string-bench-all
:= $(string-bench
)
34 stdlib-bench
:= strtod
36 benchset
:= $(string-bench-all
) $(stdlib-bench
)
38 LDLIBS-bench-acos
= -lm
39 LDLIBS-bench-acosh
= -lm
40 LDLIBS-bench-asin
= -lm
41 LDLIBS-bench-asinh
= -lm
42 LDLIBS-bench-atan
= -lm
43 LDLIBS-bench-atanh
= -lm
44 LDLIBS-bench-cos
= -lm
45 LDLIBS-bench-cosh
= -lm
46 LDLIBS-bench-exp
= -lm
47 LDLIBS-bench-log
= -lm
48 LDLIBS-bench-pow
= -lm
49 LDLIBS-bench-rint
= -lm
50 LDLIBS-bench-sin
= -lm
51 LDLIBS-bench-sinh
= -lm
52 LDLIBS-bench-sqrt
= -lm
53 LDLIBS-bench-tan
= -lm
54 LDLIBS-bench-tanh
= -lm
55 LDLIBS-bench-sincos
= -lm
59 # Rules to build and execute the benchmarks. Do not put any benchmark
60 # parameters beyond this point.
62 # We don't want the benchmark programs to run in parallel since that could
63 # affect their performance.
69 binaries-bench
:= $(addprefix $(objpfx
)bench-
,$(bench
))
70 binaries-benchset
:= $(addprefix $(objpfx
)bench-
,$(benchset
))
72 # The default duration: 10 seconds.
77 CPPFLAGS-nonlib
+= -DDURATION
=$(BENCH_DURATION
)
79 # Use clock_gettime to measure performance of functions. The default is to use
80 # HP_TIMING if it is available.
81 ifdef USE_CLOCK_GETTIME
82 CPPFLAGS-nonlib
+= -DUSE_CLOCK_GETTIME
85 # This makes sure CPPFLAGS-nonlib and CFLAGS-nonlib are passed
86 # for all these modules.
87 cpp-srcs-left
:= $(binaries-benchset
:=.c
) $(binaries-bench
:=.c
)
89 include $(patsubst %,$(..
)cppflags-iterator.mk
,$(cpp-srcs-left
))
91 bench-deps
:= bench-skeleton.c bench-timing.h Makefile
93 run-bench
= $(test-wrapper-env
) \
94 GCONV_PATH
=$(common-objpfx
)iconvdata LC_ALL
=C \
95 $($*-ENV
) $(rtld-prefix
) $${run}
98 rm -f
$(binaries-bench
) $(addsuffix .o
,$(binaries-bench
))
99 rm -f
$(binaries-benchset
) $(addsuffix .o
,$(binaries-benchset
))
101 bench
: bench-set bench-func
103 bench-set
: $(binaries-benchset
)
105 echo
"Running $${run}"; \
106 $(run-bench
) > $${run}.out
; \
109 bench-func
: $(binaries-bench
)
110 { for run in
$^
; do \
111 echo
"Running $${run}" >&2; \
113 done
; } > $(objpfx
)bench.out-tmp
; \
114 if
[ -f
$(objpfx
)bench.out
]; then \
115 mv
-f
$(objpfx
)bench.out
$(objpfx
)bench.out.old
; \
117 mv
-f
$(objpfx
)bench.out-tmp
$(objpfx
)bench.out
119 $(binaries-bench
) $(binaries-benchset
): %: %.o \
120 $(sort $(filter $(common-objpfx
)lib
%,$(link-libc
))) \
121 $(addprefix $(csu-objpfx
),start.o
) $(+preinit
) $(+postinit
)
124 $(objpfx
)bench-
%.c
: %-inputs
$(bench-deps
)
125 { if
[ -n
"$($*-INCLUDE)" ]; then \
128 $(..
)scripts
/bench.pl
$(patsubst %-inputs
,%,$<); } > $@
-tmp