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 stdlib-bench := strtod
37 benchset := $(string-bench-all) $(stdlib-bench)
39 LDLIBS-bench-acos = -lm
40 LDLIBS-bench-acosh = -lm
41 LDLIBS-bench-asin = -lm
42 LDLIBS-bench-asinh = -lm
43 LDLIBS-bench-atan = -lm
44 LDLIBS-bench-atanh = -lm
45 LDLIBS-bench-cos = -lm
46 LDLIBS-bench-cosh = -lm
47 LDLIBS-bench-exp = -lm
48 LDLIBS-bench-log = -lm
49 LDLIBS-bench-pow = -lm
50 LDLIBS-bench-rint = -lm
51 LDLIBS-bench-sin = -lm
52 LDLIBS-bench-sinh = -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