benchtests/Makefile

   1 # Copyright (C) 2013 Free Software Foundation, Inc.
   2 # This file is part of the GNU C Library.
   3
   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.
   8
   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.
  13
  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/>.
  17
  18
  19 # Makefile for benchmark tests.  The only useful target here is `bench`.
  20 # Add benchmark functions in alphabetical order.
  21
  22 subdir := benchtests
  23 bench := acos acosh asin asinh atan atanh cos cosh exp log modf pow rint sin \
  24          sincos sinh sqrt tan tanh
  25
  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)
  33
  34 stdlib-bench := strtod
  35
  36 benchset := $(string-bench-all) $(stdlib-bench)
  37
  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
  56
  57 \f
  58
  59 # Rules to build and execute the benchmarks.  Do not put any benchmark
  60 # parameters beyond this point.
  61
  62 # We don't want the benchmark programs to run in parallel since that could
  63 # affect their performance.
  64 .NOTPARALLEL:
  65
  66 include ../Makeconfig
  67 include ../Rules
  68
  69 binaries-bench := $(addprefix $(objpfx)bench-,$(bench))
  70 binaries-benchset := $(addprefix $(objpfx)bench-,$(benchset))
  71
  72 # The default duration: 10 seconds.
  73 ifndef BENCH_DURATION
  74 BENCH_DURATION := 10
  75 endif
  76
  77 CPPFLAGS-nonlib += -DDURATION=$(BENCH_DURATION)
  78
  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
  83 endif
  84
  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)
  88 lib := nonlib
  89 include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
  90
  91 bench-deps := bench-skeleton.c bench-timing.h Makefile
  92
  93 run-bench = $(test-wrapper-env) \
  94             GCONV_PATH=$(common-objpfx)iconvdata LC_ALL=C \
  95             $($*-ENV) $(rtld-prefix) $${run}
  96
  97 bench-clean:
  98         rm -f $(binaries-bench) $(addsuffix .o,$(binaries-bench))
  99         rm -f $(binaries-benchset) $(addsuffix .o,$(binaries-benchset))
 100
 101 bench: bench-set bench-func
 102
 103 bench-set: $(binaries-benchset)
 104         for run in $^; do \
 105           echo "Running $${run}"; \
 106           $(run-bench) > $${run}.out; \
 107         done
 108
 109 bench-func: $(binaries-bench)
 110         { for run in $^; do \
 111           echo "Running $${run}" >&2; \
 112           $(run-bench); \
 113         done; } > $(objpfx)bench.out-tmp; \
 114         if [ -f $(objpfx)bench.out ]; then \
 115           mv -f $(objpfx)bench.out $(objpfx)bench.out.old; \
 116         fi; \
 117         mv -f $(objpfx)bench.out-tmp $(objpfx)bench.out
 118
 119 $(binaries-bench) $(binaries-benchset): %: %.o \
 120   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 121   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 122         $(+link)
 123
 124 $(objpfx)bench-%.c: %-inputs $(bench-deps)
 125         { if [ -n "$($*-INCLUDE)" ]; then \
 126           cat $($*-INCLUDE); \
 127         fi; \
 128         $(..)scripts/bench.pl $(patsubst %-inputs,%,$<); } > $@-tmp
 129         mv -f $@-tmp $@