benchtests/Makefile

   1 # Copyright (C) 2013-2014 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
  24 include ../Makeconfig
  25
  26 bench := acos acosh asin asinh atan atanh cos cosh exp exp2 log log2 modf pow \
  27          rint sin sincos sinh sqrt tan tanh
  28
  29 # String function benchmarks.
  30 string-bench := bcopy bzero memccpy memchr memcmp memcpy memmem memmove \
  31                 mempcpy memset rawmemchr stpcpy stpncpy strcasecmp strcasestr \
  32                 strcat strchr strchrnul strcmp strcpy strcspn strlen \
  33                 strncasecmp strncat strncmp strncpy strnlen strpbrk strrchr \
  34                 strspn strstr strcpy_chk stpcpy_chk memrchr strsep strtok
  35 string-bench-all := $(string-bench)
  36
  37 stdlib-bench := strtod
  38
  39 benchset := $(string-bench-all) $(stdlib-bench)
  40
  41 LDLIBS-bench-acos = -lm
  42 LDLIBS-bench-acosh = -lm
  43 LDLIBS-bench-asin = -lm
  44 LDLIBS-bench-asinh = -lm
  45 LDLIBS-bench-atan = -lm
  46 LDLIBS-bench-atanh = -lm
  47 LDLIBS-bench-cos = -lm
  48 LDLIBS-bench-cosh = -lm
  49 LDLIBS-bench-exp = -lm
  50 LDLIBS-bench-exp2 = -lm
  51 LDLIBS-bench-log = -lm
  52 LDLIBS-bench-log2 = -lm
  53 LDLIBS-bench-pow = -lm
  54 LDLIBS-bench-rint = -lm
  55 LDLIBS-bench-sin = -lm
  56 LDLIBS-bench-sinh = -lm
  57 LDLIBS-bench-sqrt = -lm
  58 LDLIBS-bench-tan = -lm
  59 LDLIBS-bench-tanh = -lm
  60 LDLIBS-bench-sincos = -lm
  61
  62 \f
  63
  64 # Rules to build and execute the benchmarks.  Do not put any benchmark
  65 # parameters beyond this point.
  66
  67 # We don't want the benchmark programs to run in parallel since that could
  68 # affect their performance.
  69 .NOTPARALLEL:
  70
  71 include ../Rules
  72
  73 binaries-bench := $(addprefix $(objpfx)bench-,$(bench))
  74 binaries-benchset := $(addprefix $(objpfx)bench-,$(benchset))
  75
  76 # The default duration: 10 seconds.
  77 ifndef BENCH_DURATION
  78 BENCH_DURATION := 10
  79 endif
  80
  81 CPPFLAGS-nonlib += -DDURATION=$(BENCH_DURATION)
  82
  83 # Use clock_gettime to measure performance of functions.  The default is to use
  84 # HP_TIMING if it is available.
  85 ifdef USE_CLOCK_GETTIME
  86 CPPFLAGS-nonlib += -DUSE_CLOCK_GETTIME
  87 endif
  88
  89 # This makes sure CPPFLAGS-nonlib and CFLAGS-nonlib are passed
  90 # for all these modules.
  91 cpp-srcs-left := $(binaries-benchset:=.c) $(binaries-bench:=.c)
  92 lib := nonlib
  93 include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
  94
  95 bench-deps := bench-skeleton.c bench-timing.h Makefile
  96
  97 run-bench = $(test-wrapper-env) \
  98             GCONV_PATH=$(common-objpfx)iconvdata LC_ALL=C \
  99             $($*-ENV) $(rtld-prefix) $${run}
 100
 101 bench-clean:
 102         rm -f $(binaries-bench) $(addsuffix .o,$(binaries-bench))
 103         rm -f $(binaries-benchset) $(addsuffix .o,$(binaries-benchset))
 104
 105 bench: bench-set bench-func
 106
 107 bench-set: $(binaries-benchset)
 108         for run in $^; do \
 109           echo "Running $${run}"; \
 110           $(run-bench) > $${run}.out; \
 111         done
 112
 113 bench-func: $(binaries-bench)
 114         { for run in $^; do \
 115           echo "Running $${run}" >&2; \
 116           $(run-bench); \
 117         done; } > $(objpfx)bench.out-tmp; \
 118         if [ -f $(objpfx)bench.out ]; then \
 119           mv -f $(objpfx)bench.out $(objpfx)bench.out.old; \
 120         fi; \
 121         mv -f $(objpfx)bench.out-tmp $(objpfx)bench.out
 122
 123 $(binaries-bench) $(binaries-benchset): %: %.o \
 124   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 125   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 126         $(+link)
 127
 128 $(objpfx)bench-%.c: %-inputs $(bench-deps)
 129         { if [ -n "$($*-INCLUDE)" ]; then \
 130           cat $($*-INCLUDE); \
 131         fi; \
 132         $(..)scripts/bench.pl $(patsubst %-inputs,%,$<); } > $@-tmp
 133         mv -f $@-tmp $@