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 \
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
32 string-bench-ifunc := $(addsuffix -ifunc, $(string-bench))
33 string-bench-all := $(string-bench) $(string-bench-ifunc)
35 benchset := $(string-bench-all)
39 LDLIBS-bench-acos = -lm
41 acosh-ARGLIST = double
43 LDLIBS-bench-acosh = -lm
47 LDLIBS-bench-asin = -lm
49 asinh-ARGLIST = double
51 LDLIBS-bench-asinh = -lm
55 LDLIBS-bench-atan = -lm
57 atanh-ARGLIST = double
59 LDLIBS-bench-atanh = -lm
63 LDLIBS-bench-cos = -lm
67 LDLIBS-bench-cosh = -lm
71 LDLIBS-bench-exp = -lm
75 LDLIBS-bench-log = -lm
77 pow-ARGLIST = double:double
79 LDLIBS-bench-pow = -lm
83 LDLIBS-bench-rint = -lm
87 LDLIBS-bench-sin = -lm
91 LDLIBS-bench-sinh = -lm
95 LDLIBS-bench-tan = -lm
99 LDLIBS-bench-tanh = -lm
101 LDLIBS-bench-sincos = -lm
105 # Rules to build and execute the benchmarks. Do not put any benchmark
106 # parameters beyond this point.
108 # We don't want the benchmark programs to run in parallel since that could
109 # affect their performance.
112 include ../Makeconfig
115 binaries-bench := $(addprefix $(objpfx)bench-,$(bench))
116 binaries-benchset := $(addprefix $(objpfx)bench-,$(benchset))
118 # The default duration: 10 seconds.
119 ifndef BENCH_DURATION
123 CPPFLAGS-nonlib += -DDURATION=$(BENCH_DURATION)
125 # Use clock_gettime to measure performance of functions. The default is to use
126 # HP_TIMING if it is available.
127 ifdef USE_CLOCK_GETTIME
128 CPPFLAGS-nonlib += -DUSE_CLOCK_GETTIME
131 # This makes sure CPPFLAGS-nonlib and CFLAGS-nonlib are passed
132 # for all these modules.
133 cpp-srcs-left := $(binaries-benchset:=.c) $(binaries-bench:=.c)
135 include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
137 bench-deps := bench-skeleton.c bench-timing.h Makefile
139 run-bench = $(test-wrapper-env) \
140 GCONV_PATH=$(common-objpfx)iconvdata LC_ALL=C \
141 $($*-ENV) $(rtld-prefix) $${run}
144 rm -f $(binaries-bench) $(addsuffix .o,$(binaries-bench))
145 rm -f $(binaries-benchset) $(addsuffix .o,$(binaries-benchset))
147 bench: bench-set bench-func
149 bench-set: $(binaries-benchset)
151 echo "Running $${run}"; \
152 $(run-bench) > $${run}.out; \
155 bench-func: $(binaries-bench)
156 { for run in $^; do \
157 echo "Running $${run}" >&2; \
159 done; } > $(objpfx)bench.out-tmp; \
160 if [ -f $(objpfx)bench.out ]; then \
161 mv -f $(objpfx)bench.out $(objpfx)bench.out.old; \
163 mv -f $(objpfx)bench.out-tmp $(objpfx)bench.out
165 $(binaries-bench) $(binaries-benchset): %: %.o \
166 $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
167 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
170 $(objpfx)bench-%.c: %-inputs $(bench-deps)
171 { if [ -n "$($*-INCLUDE)" ]; then \
174 $(..)scripts/bench.pl $(patsubst %-inputs,%,$<) \
175 $($*-ARGLIST) $($*-RET); } > $@-tmp