下载源码：
git clone https://kernel.googlesource.com/pub/scm/devel/pahole/pahole
下载libbpf源码：
git clone https://github.com/libbpf/libbpf
屏蔽pahole下CMakeLists.txt相关代码
+++ b/CMakeLists.txt
@@ -35,26 +35,6 @@ find_package(DWARF REQUIRED)
find_package(ZLIB REQUIRED)
# make sure git submodule(s) are checked out
-find_package(Git QUIET)
-if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
- # Update submodules as needed
- option(GIT_SUBMODULE "Check submodules during build" ON)
- if(GIT_SUBMODULE)
- message(STATUS "Submodule update")
- execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --recursive
- WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
- RESULT_VARIABLE GIT_SUBMOD_RESULT)
- if(NOT GIT_SUBMOD_RESULT EQUAL "0")
- message(FATAL_ERROR "git submodule update --init failed with ${GIT_SUBMOD_RESULT}, please checkout submodules")
- else()
- message(STATUS "Submodule update - done")
- endif()
- endif()
-endif()
-if(NOT EXISTS "${PROJECT_SOURCE_DIR}/lib/bpf/src/btf.h")
- message(FATAL_ERROR "The submodules were not downloaded! GIT_SUBMODULE was turned off or failed. Please update submodules and try again.")
-endif()
-
创建mkdir lib/bpf目录，将libbpf源码拷贝到该目录下
编译：
mkdir build cd build cmake -D__LIB=lib .. make make install
pahole编译过程libbpf: failed to find valid kernel BTF
原文：https://www.cnblogs.com/haoxing990/p/13683839.html