From: Tzvetomir (VMware) Stoyanov <tz.stoyanov@xxxxxxxxx>
The tracefs library provides APIs for accessing files from tracefs.
The library is part of trace-cmd, it is installed as part of trace-cmd
installation. KernelShark uses some of those APIs and must be linked with
the library
Signed-off-by: Tzvetomir (VMware) Stoyanov <tz.stoyanov@xxxxxxxxx>
---
CMakeLists.txt | 3 ++-
build/FindTraceCmd.cmake | 28 ++++++++++++++++++++++++++++
src/CMakeLists.txt | 2 ++
3 files changed, 32 insertions(+), 1 deletion(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index ce2a5ef..846fcf2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -79,7 +79,8 @@ include_directories(${KS_DIR}/src/
${KS_DIR}/build/src/
${JSONC_INCLUDE_DIR}
${TRACECMD_INCLUDE_DIR}
- ${TRACEEVENT_INCLUDE_DIR})
+ ${TRACEEVENT_INCLUDE_DIR}
+ ${TRACEFS_INCLUDE_DIR})
message("")
message(STATUS "C flags : " ${CMAKE_C_FLAGS})
diff --git a/build/FindTraceCmd.cmake b/build/FindTraceCmd.cmake
index 6278190..802d42e 100644
--- a/build/FindTraceCmd.cmake
+++ b/build/FindTraceCmd.cmake
@@ -6,6 +6,8 @@
# TRACEEVENT_FOUND, If false, do not try to use traceevent.
#
# TRACECMD_INCLUDE_DIR, where to find trace-cmd header.
+# TRACEFS_INCLUDE_DIR, where to find tracefs header.
+# TRACEFS_LIBRARY, the tracefs library.
# TRACECMD_LIBRARY, the trace-cmd library.
# TRACECMD_FOUND, If false, do not try to use trace-cmd.
@@ -31,10 +33,18 @@ find_path(TRACECMD_INCLUDE_DIR NAMES trace-cmd/trace-cmd.h
PATHS $ENV{TRACE_CMD}/include/
NO_DEFAULT_PATH)
+find_path(TRACEFS_INCLUDE_DIR NAMES tracefs/tracefs.h
+ PATHS $ENV{TRACE_CMD}/include/
+ NO_DEFAULT_PATH)
+
find_library(TRACECMD_LIBRARY NAMES trace-cmd/libtracecmd.so
PATHS $ENV{TRACE_CMD}/lib/
NO_DEFAULT_PATH)
+find_library(TRACEFS_LIBRARY NAMES tracefs/libtracefs.so
+ PATHS $ENV{TRACE_CMD}/lib/
+ NO_DEFAULT_PATH)
+
find_path(TRACEEVENT_INCLUDE_DIR NAMES traceevent/event-parse.h
PATHS $ENV{TRACE_CMD}/include/
NO_DEFAULT_PATH)
@@ -47,7 +57,9 @@ find_library(TRACEEVENT_LIBRARY NAMES traceevent/libtraceevent.so
# search was successful "find_path" will do nothing this time.
find_program(TRACECMD_EXECUTABLE NAMES trace-cmd)
find_path(TRACECMD_INCLUDE_DIR NAMES trace-cmd/trace-cmd.h)
+find_path(TRACEFS_INCLUDE_DIR NAMES tracefs/tracefs.h)
find_library(TRACECMD_LIBRARY NAMES trace-cmd/libtracecmd.so)
+find_library(TRACEFS_LIBRARY NAMES tracefs/libtracefs.so)
find_path(TRACEEVENT_INCLUDE_DIR NAMES traceevent/event-parse.h)
find_library(TRACEEVENT_LIBRARY NAMES traceevent/libtraceevent.so)
@@ -67,6 +79,22 @@ ELSE (TRACECMD_FOUND)
ENDIF (TRACECMD_FOUND)
+IF (TRACEFS_INCLUDE_DIR AND TRACEFS_LIBRARY)
+
+ SET(TRACEFS_FOUND TRUE)
+
+ENDIF (TRACEFS_INCLUDE_DIR AND TRACEFS_LIBRARY)
+
+IF (TRACEFS_FOUND)
+
+ MESSAGE(STATUS "Found tracefs: ${TRACEFS_LIBRARY}")
+
+ELSE (TRACEFS_FOUND)
+
+ MESSAGE(FATAL_ERROR "\nCould not find tracefs!\n")
+
+ENDIF (TRACEFS_FOUND)
+
IF (TRACEEVENT_INCLUDE_DIR AND TRACEEVENT_LIBRARY)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index dbd33ab..8ffc66c 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -19,6 +19,7 @@ add_library(kshark SHARED libkshark.c
target_link_libraries(kshark ${TRACEEVENT_LIBRARY}
${TRACECMD_LIBRARY}
+ ${TRACEFS_LIBRARY}
${JSONC_LIBRARY}
${CMAKE_DL_LIBS})
@@ -104,6 +105,7 @@ if (Qt5Widgets_FOUND AND Qt5Network_FOUND)
Qt5::Network
${TRACEEVENT_LIBRARY}
${TRACECMD_LIBRARY}
+ ${TRACEFS_LIBRARY}
${CMAKE_DL_LIBS})
set_target_properties(kshark-gui PROPERTIES SUFFIX ".so.${KS_VERSION_STRING}")
--
2.24.1
|