1 files changed, 77 insertions, 0 deletions
diff --git a/bench.mk b/bench.mk
new file mode 100644
index 0000000..dfe46bd
--- /dev/null
+++ b/bench.mk
@@ -0,0 +1,77 @@
+objpfx = $(prefix)/$(ver)/usr/libexec/glibc-benchtests/
+
+bench-math := acos acosh asin asinh atan atanh cos cosh exp exp2 ffs ffsll \
+	      log log2 modf pow rint sin sincos sinh sqrt tan tanh
+
+bench-pthread := pthread_once
+
+bench := $(bench-math) $(bench-pthread)
+
+run-bench := $(prefix)/$(ver)/lib64/ld-linux-x86-64.so.2 --library-path $(prefix)/$(ver)/lib64 $${run}
+
+# String function benchmarks.
+string-bench := bcopy bzero memccpy memchr memcmp memcpy memmem memmove \
+		mempcpy memset rawmemchr stpcpy stpncpy strcasecmp strcasestr \
+		strcat strchr strchrnul strcmp strcpy strcspn strlen \
+		strncasecmp strncat strncmp strncpy strnlen strpbrk strrchr \
+		strspn strstr strcpy_chk stpcpy_chk memrchr strsep strtok
+string-bench-all := $(string-bench)
+
+stdlib-bench := strtod
+
+benchset := $(string-bench-all) $(stdlib-bench)
+
+bench-malloc := malloc-thread
+
+binaries-bench := $(addprefix $(objpfx)bench-,$(bench))
+binaries-benchset := $(addprefix $(objpfx)bench-,$(benchset))
+binaries-bench-malloc := $(addprefix $(objpfx)bench-,$(bench-malloc))
+
+DETAILED_OPT :=
+
+ifdef DETAILED
+	DETAILED_OPT := -d
+endif
+
+bench: bench-set bench-func bench-malloc
+
+bench-set: $(binaries-benchset)
+	for run in $^; do \
+	  outfile=$(prefix)/$$(basename $${run}.$(ver).out); \
+	  echo "Running $${run}"; \
+	  $(run-bench) > $${outfile}.tmp; \
+	  mv $${outfile}{.tmp,}; \
+	done
+
+bench-malloc: $(binaries-bench-malloc)
+	run=$(objpfx)bench-malloc-thread; \
+	outfile=$(prefix)/$$(basename $${run}.$(ver).out); \
+	for thr in 1 8 16 32; do \
+	  echo "Running $${run} $${thr}"; \
+	  $(run-bench) $${thr} > $${outfile}.tmp; \
+	  mv $${outfile}{.tmp,}; \
+	done
+
+# Build and execute the benchmark functions.  This target generates JSON
+# formatted bench.out.  Each of the programs produce independent JSON output,
+# so one could even execute them individually and process it using any JSON
+# capable language or tool.
+bench-func: $(binaries-bench)
+	{ echo "{\"timing_type\": \"hp-timing\","; \
+	echo " \"functions\": {"; \
+	for run in $^; do \
+	  if ! [ "x$${run}" = "x$<" ]; then \
+	    echo ","; \
+	  fi; \
+	  echo "Running $${run}" >&2; \
+	  $(run-bench) $(DETAILED_OPT); \
+	done; \
+	echo; \
+	echo " }"; \
+	echo "}"; } > $(prefix)/bench.$(ver).out-tmp; \
+	if [ -f $(prefix)/bench.$(ver).out ]; then \
+	  mv -f $(prefix)/bench.$(ver).out{,.old}; \
+	fi; \
+	mv -f $(prefix)/bench.$(ver).out{-tmp,}
+#	scripts/validate_benchout.py bench.out \
+#		scripts/benchout.schema.json