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 \
28 LDFLAGS-bench-acos = -lm
30 acosh-ARGLIST = double
32 LDFLAGS-bench-acosh = -lm
36 LDFLAGS-bench-asin = -lm
38 asinh-ARGLIST = double
40 LDFLAGS-bench-asinh = -lm
44 LDFLAGS-bench-atan = -lm
46 atanh-ARGLIST = double
48 LDFLAGS-bench-atanh = -lm
52 LDFLAGS-bench-cos = -lm
56 LDFLAGS-bench-cosh = -lm
60 LDFLAGS-bench-exp = -lm
64 LDFLAGS-bench-log = -lm
66 pow-ARGLIST = double:double
68 LDFLAGS-bench-pow = -lm
72 LDFLAGS-bench-rint = -lm
76 LDFLAGS-bench-sin = -lm
80 LDFLAGS-bench-sinh = -lm
84 LDFLAGS-bench-tan = -lm
88 LDFLAGS-bench-tanh = -lm
92 # Rules to build and execute the benchmarks. Do not put any benchmark
93 # parameters beyond this point.
98 binaries-bench := $(addprefix $(objpfx)bench-,$(bench))
100 # The default duration: 10 seconds.
101 ifndef BENCH_DURATION
105 CPPFLAGS-nonlib += -DDURATION=$(BENCH_DURATION)
107 # Use clock_gettime to measure performance of functions. The default is to use
108 # HP_TIMING if it is available.
109 ifdef USE_CLOCK_GETTIME
110 CPPFLAGS-nonlib += -DUSE_CLOCK_GETTIME
113 # This makes sure CPPFLAGS-nonlib and CFLAGS-nonlib are passed
114 # for all these modules.
115 cpp-srcs-left := $(binaries-bench:=.c)
117 include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
119 bench-deps := bench-skeleton.c bench-timing.h Makefile
121 run-bench = $(test-wrapper-env) \
122 GCONV_PATH=$(common-objpfx)iconvdata LC_ALL=C \
123 $($*-ENV) $(rtld-prefix) $${run}
126 rm -f $(binaries-bench) $(addsuffix .o,$(binaries-bench))
128 bench: $(binaries-bench)
129 { for run in $^; do \
130 echo "Running $${run}" >&2; \
132 done; } > $(objpfx)bench.out-tmp; \
133 if [ -f $(objpfx)bench.out ]; then \
134 mv -f $(objpfx)bench.out $(objpfx)bench.out.old; \
136 mv -f $(objpfx)bench.out-tmp $(objpfx)bench.out
138 $(binaries-bench): %: %.o \
139 $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
140 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
143 $(objpfx)bench-%.c: %-inputs $(bench-deps)
144 { if [ -n "$($*-INCLUDE)" ]; then \
147 $(..)scripts/bench.pl $(patsubst %-inputs,%,$<) \
148 $($*-ARGLIST) $($*-RET); } > $@-tmp