[RFC PATCH] trace-cruncher: Build trace-obj-debug.c as library

[RFC PATCH] trace-cruncher: Build trace-obj-debug.c as library

[Yordan Karadzhov (VMware)]

The code for resolving virtual address to function name gets build
as shared library. The library is installed as package data. Later
this library can be used by the different sub-modules of tracecruncher.

Signed-off-by: Yordan Karadzhov (VMware) <y.karadz@gmail.com>
---

This patch applies on top of the patch:
https://lore.kernel.org/all/20220420080206.252356-2-tz.stoyanov@gmail.com/

 Makefile | 24 +++++++++++++++++++++---
 setup.py |  3 ++-
 2 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index 52428c0..9b62c4a 100644
--- a/Makefile
+++ b/Makefile
@@ -13,13 +13,31 @@ NC	:= '\e[0m'
 
 DOCDIR = ./docs
 
-all:
+CC = gcc
+CFLAGS = -fPIC -Wall -Wextra -O2 -g
+LDFLAGS = -shared
+RM = rm -rf
+
+DBG_LIB = tracecruncher/libobjdebug.so
+PY_SETUP = setup
+
+DBG_SRCS = src/trace-obj-debug.c
+DBG_OBJS = src/trace-obj-debug.o
+
+all: $(DBG_LIB) $(PY_SETUP)
 	@ echo ${CYAN}Buildinging trace-cruncher:${NC};
+
+$(PY_SETUP):
 	python3 setup.py build
 
+$(DBG_LIB): $(DBG_OBJS)
+	$(CC) ${LDFLAGS} -o $@ $^ -L./tracecruncher -lbfd
+
 clean:
-	rm -f src/npdatawrapper.c
-	rm -rf build
+	${RM} src/npdatawrapper.c
+	${RM} $(DBG_LIB)
+	${RM} src/*.o
+	${RM} build
 
 install:
 	@ echo ${CYAN}Installing trace-cruncher:${NC};
diff --git a/setup.py b/setup.py
index 58561cf..3c3d40b 100644
--- a/setup.py
+++ b/setup.py
@@ -37,7 +37,7 @@ def add_library(lib, min_version,
         libs_found.extend([(lib, lib_version)])
 
 def third_party_paths():
-    library_dirs = []
+    library_dirs = ['tracecruncher']
     include_dirs = [np.get_include()]
     libs_required = [('libtraceevent', '1.5.0'),
                      ('libtracefs',    '1.3.0'),
@@ -91,6 +91,7 @@ def main():
           url='https://github.com/vmware/trace-cruncher',
           license='LGPL-2.1',
           packages=find_packages(),
+          package_data={'tracecruncher': ['libobjdebug.so']},
           ext_modules=[module_ft, module_data, module_ks],
           classifiers=[
               'Development Status :: 4 - Beta',
-- 
2.32.0