When trying to build the compile_commands.json target from an external module's directory, the following error is displayed: make[1]: *** No rule to make target 'scripts/clang-tools/gen_compile_commands.py', needed by 'compile_commands.json'. Stop. This appears to be because gen_compile_commands.py is looked up using relative path, which doesn't exist from the module's source tree. Prefixing the dependency with $(srctree) fixes the problem. Signed-off-by: Alexandre Courbot <gnurou@xxxxxxxxx> --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 8ad55d6e7b60..52d7dfe4212a 100644 --- a/Makefile +++ b/Makefile @@ -1980,7 +1980,7 @@ nsdeps: modules quiet_cmd_gen_compile_commands = GEN $@ cmd_gen_compile_commands = $(PYTHON3) $< -a $(AR) -o $@ $(filter-out $<, $(real-prereqs)) -$(extmod_prefix)compile_commands.json: scripts/clang-tools/gen_compile_commands.py \ +$(extmod_prefix)compile_commands.json: $(srctree)/scripts/clang-tools/gen_compile_commands.py \ $(if $(KBUILD_EXTMOD),, vmlinux.a $(KBUILD_VMLINUX_LIBS)) \ $(if $(CONFIG_MODULES), $(MODORDER)) FORCE $(call if_changed,gen_compile_commands) -- 2.46.0