Add proftool to decode profile data

This tool provides the facility to decode U-Boot trace data and write out
a text file in Linux ftrace format for use with pytimechart.

Signed-off-by: Simon Glass <sjg@chromium.org>

tools/Makefile

diff --git a/tools/Makefile b/tools/Makefile
index 4630f03..86985e8 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -74,6 +74,7 @@
 BIN_FILES-$(CONFIG_NETCONSOLE) += ncb$(SFX)
 BIN_FILES-$(CONFIG_SHA1_CHECK_UB_IMG) += ubsha1$(SFX)
 BIN_FILES-$(CONFIG_KIRKWOOD) += kwboot$(SFX)
+BIN_FILES-y += proftool(SFX)
 
 # Source files which exist outside the tools directory
 EXT_OBJ_FILES-$(CONFIG_BUILD_ENVCRC) += common/env_embedded.o
@@ -87,6 +88,7 @@
 OBJ_FILES-$(CONFIG_LCD_LOGO) += bmp_logo.o
 OBJ_FILES-$(CONFIG_VIDEO_LOGO) += bmp_logo.o
 NOPED_OBJ_FILES-y += default_image.o
+NOPED_OBJ_FILES-y += proftool.o
 OBJ_FILES-$(CONFIG_BUILD_ENVCRC) += envcrc.o
 NOPED_OBJ_FILES-y += fit_image.o
 OBJ_FILES-$(CONFIG_CMD_NET) += gen_eth_addr.o
@@ -180,6 +182,10 @@
 	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
 	$(HOSTSTRIP) $@
 
+$(obj)proftool(SFX):	$(obj)proftool.o
+	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
+	$(HOSTSTRIP) $@
+
 $(obj)envcrc$(SFX):	$(obj)crc32.o $(obj)env_embedded.o $(obj)envcrc.o $(obj)sha1.o
 	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^