[PATCH 24/28] ktap: add Makefile

[Jovi Zhangwei <jovi.zhangwei@gmail.com>]

Makefile for ktap kernel module and userspace binary.

Signed-off-by: Jovi Zhangwei <jovi.zhangwei@gmail.com>
---
 tools/ktap/Makefile | 189 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 189 insertions(+)
 create mode 100644 tools/ktap/Makefile

diff --git a/tools/ktap/Makefile b/tools/ktap/Makefile
new file mode 100644
index 0000000..80790da
--- /dev/null
+++ b/tools/ktap/Makefile
@@ -0,0 +1,189 @@
+
+#
+# Define NO_LIBELF if you do not want libelf dependency (e.g. cross-builds)
+# (this will also disable resolve resolving symbols in DSO functionality)
+#
+# Define amalg to enable amalgamation build, This compiles the ktapvm as
+# one huge C file and allows GCC to generate faster and shorter code. Alas,
+# this requires lots of memory during the build.
+# Recommend to use amalgmation build as default.
+amalg = 1
+
+# Do not instrument the tracer itself:
+ifdef CONFIG_FUNCTION_TRACER
+ORIG_CFLAGS := $(KBUILD_CFLAGS)
+KBUILD_CFLAGS = $(subst -pg,,$(ORIG_CFLAGS))
+endif
+
+all: mod ktap
+
+INC = include
+RUNTIME = runtime
+
+KTAP_LIBS = -lpthread
+
+LIB_OBJS += $(RUNTIME)/lib_base.o $(RUNTIME)/lib_kdebug.o \
+		$(RUNTIME)/lib_timer.o $(RUNTIME)/lib_ansi.o \
+		$(RUNTIME)/lib_table.o $(RUNTIME)/lib_net.o
+
+ifndef amalg
+RUNTIME_OBJS += $(RUNTIME)/ktap.o $(RUNTIME)/kp_bcread.o $(RUNTIME)/kp_obj.o \
+		$(RUNTIME)/kp_str.o $(RUNTIME)/kp_mempool.o \
+		$(RUNTIME)/kp_tab.o $(RUNTIME)/kp_vm.o \
+		$(RUNTIME)/kp_transport.o $(RUNTIME)/kp_events.o $(LIB_OBJS)
+else
+RUNTIME_OBJS += $(RUNTIME)/amalg.o
+endif
+
+obj-m		+= ktapvm.o
+ktapvm-y	:= $(RUNTIME_OBJS)
+
+KVERSION ?= $(shell uname -r)
+KERNEL_SRC ?= /lib/modules/$(KVERSION)/build
+PWD := $(shell pwd)
+mod:
+	$(MAKE) -C $(KERNEL_SRC) M=$(PWD) modules
+
+modules_install:
+	$(MAKE) -C $(KERNEL_SRC) M=$(PWD) modules_install
+
+KTAPC_CFLAGS = -Wall -O2
+
+
+# try-cc
+# Usage: option = $(call try-cc, source-to-build, cc-options, msg)
+ifneq ($(V),1)
+TRY_CC_OUTPUT= > /dev/null 2>&1
+endif
+TRY_CC_MSG=echo "    CHK $(3)" 1>&2;
+
+try-cc = $(shell sh -c							\
+         'TMP="/tmp/.$$$$";						\
+          $(TRY_CC_MSG)							\
+          echo "$(1)" |							\
+          $(CC) -x c - $(2) -o "$$TMP" $(TRY_CC_OUTPUT) && echo y;	\
+          rm -f "$$TMP"')
+
+
+define SOURCE_LIBELF
+#include <libelf.h>
+
+int main(void)
+{
+        Elf *elf = elf_begin(0, ELF_C_READ, 0);
+        return (long)elf;
+}
+endef
+
+FLAGS_LIBELF = -lelf
+
+ifdef NO_LIBELF
+	KTAPC_CFLAGS += -DNO_LIBELF
+else
+ifneq ($(call try-cc,$(SOURCE_LIBELF),$(FLAGS_LIBELF),libelf),y)
+    $(warning No libelf found, disables symbol resolving, please install elfutils-libelf-devel/libelf-dev);
+    NO_LIBELF := 1
+    KTAPC_CFLAGS += -DNO_LIBELF
+else
+    KTAP_LIBS += -lelf
+endif
+endif
+
+UDIR = userspace
+
+$(UDIR)/kp_main.o: $(UDIR)/kp_main.c $(INC)/* KTAP-CFLAGS
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/kp_lex.o: $(UDIR)/kp_lex.c $(INC)/* KTAP-CFLAGS
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/kp_parse.o: $(UDIR)/kp_parse.c $(INC)/* KTAP-CFLAGS
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/kp_bcwrite.o: $(UDIR)/kp_bcwrite.c $(INC)/* KTAP-CFLAGS
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/kp_reader.o: $(UDIR)/kp_reader.c $(INC)/* KTAP-CFLAGS
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/kp_util.o: $(UDIR)/kp_util.c $(INC)/* KTAP-CFLAGS
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/kp_parse_events.o: $(UDIR)/kp_parse_events.c $(INC)/* KTAP-CFLAGS
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+ifndef NO_LIBELF
+$(UDIR)/kp_symbol.o: $(UDIR)/kp_symbol.c KTAP-CFLAGS
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+endif
+
+KTAPOBJS =
+KTAPOBJS += $(UDIR)/kp_main.o
+KTAPOBJS += $(UDIR)/kp_lex.o
+KTAPOBJS += $(UDIR)/kp_parse.o
+KTAPOBJS += $(UDIR)/kp_bcwrite.o
+KTAPOBJS += $(UDIR)/kp_reader.o
+KTAPOBJS += $(UDIR)/kp_util.o
+KTAPOBJS += $(UDIR)/kp_parse_events.o
+ifndef NO_LIBELF
+KTAPOBJS += $(UDIR)/kp_symbol.o
+endif
+
+ktap: $(KTAPOBJS) KTAP-CFLAGS
+	$(QUIET_LINK)$(CC) $(KTAPC_CFLAGS) -o $@ $(KTAPOBJS) $(KTAP_LIBS)
+
+KMISC := /lib/modules/$(KVERSION)/ktapvm/
+
+install: mod ktap
+	make modules_install ktapvm.ko
+	install -c ktap /usr/bin/
+	mkdir -p ~/.vim/ftdetect
+	mkdir -p ~/.vim/syntax
+	cp vim/ftdetect/ktap.vim ~/.vim/ftdetect/
+	cp vim/syntax/ktap.vim ~/.vim/syntax/
+
+load:
+	insmod ktapvm.ko
+
+unload:
+	rmmod ktapvm
+
+reload:
+	make unload; make load
+
+test: FORCE
+	#start testing
+	prove -j4 -r test/
+
+clean:
+	$(MAKE) -C $(KERNEL_SRC) M=$(PWD) clean
+	$(RM) ktap KTAP-CFLAGS
+
+
+PHONY += FORCE
+FORCE:
+
+TRACK_FLAGS = KTAP
+ifdef amalg
+TRACK_FLAGS += AMALG
+endif
+ifdef NO_LIBELF
+TRACK_FLAGS += NO_LIBELF
+endif
+
+KTAP-CFLAGS: FORCE
+	@FLAGS='$(TRACK_FLAGS)'; \
+	if test x"$$FLAGS" != x"`cat KTAP-CFLAGS 2>/dev/null`" ; then \
+		echo "$$FLAGS" >KTAP-CFLAGS; \
+	fi
+
+#generate tags/etags/cscope index for editor.
+define all_sources
+        (find . -name '*.[ch]' -print)
+endef
+
+.PHONY: tags
+tags:
+	$(all_sources) | xargs ctags
+
+.PHONY: etags
+etags:
+	$(all_sources) | xargs etags
+
+.PHONY: cscope
+cscope:
+	$(all_sources) > cscope.files
+	cscope -k -b
-- 
1.8.1.4