tools/bpf: Don't use $(COMPILE.c)

When using make kselftest TARGETS=bpf, tools/bpf is built with MAKEFLAGS=rR, which causes $(COMPILE.c) to be undefined, which in turn causes the build to fail with CC kselftest/bpf/tools/build/bpftool/map_perf_ring.o /bin/sh: 1: -MMD: not found Fix by using $(CC) $(CFLAGS) -c instead of $(COMPILE.c). Signed-off-by: Ilya Leoshkevich <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
famz · Jun 2, 2020 · d70a6be · d70a6be
1 parent 9bc499b
commit d70a6be
Show file tree

Hide file tree

Showing 2 changed files with 7 additions and 7 deletions.
diff --git a/tools/bpf/Makefile b/tools/bpf/Makefile
@@ -64,12 +64,12 @@ $(OUTPUT)%.lex.c: $(srctree)/tools/bpf/%.l
 	$(QUIET_FLEX)$(LEX) -o $@ $<
 
 $(OUTPUT)%.o: $(srctree)/tools/bpf/%.c
-	$(QUIET_CC)$(COMPILE.c) -o $@ $<
+	$(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $<
 
 $(OUTPUT)%.yacc.o: $(OUTPUT)%.yacc.c
-	$(QUIET_CC)$(COMPILE.c) -o $@ $<
+	$(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $<
 $(OUTPUT)%.lex.o: $(OUTPUT)%.lex.c
-	$(QUIET_CC)$(COMPILE.c) -o $@ $<
+	$(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $<
 
 PROGS = $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg $(OUTPUT)bpf_asm
 

diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
@@ -126,7 +126,7 @@ else
 endif
 
 $(OUTPUT)_prog.o: prog.c
-	$(QUIET_CC)$(COMPILE.c) -MMD -DBPFTOOL_WITHOUT_SKELETONS -o $@ $<
+	$(QUIET_CC)$(CC) $(CFLAGS) -c -MMD -DBPFTOOL_WITHOUT_SKELETONS -o $@ $<
 
 $(OUTPUT)_bpftool: $(_OBJS) $(LIBBPF)
 	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(_OBJS) $(LIBS)
@@ -141,18 +141,18 @@ profiler.skel.h: $(OUTPUT)_bpftool skeleton/profiler.bpf.o
 	$(QUIET_GEN)$(OUTPUT)./_bpftool gen skeleton skeleton/profiler.bpf.o > $@
 
 $(OUTPUT)prog.o: prog.c profiler.skel.h
-	$(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
+	$(QUIET_CC)$(CC) $(CFLAGS) -c -MMD -o $@ $<
 
 $(OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c
-	$(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
+	$(QUIET_CC)$(CC) $(CFLAGS) -c -MMD -o $@ $<
 
 $(OUTPUT)feature.o: | zdep
 
 $(OUTPUT)bpftool: $(__OBJS) $(LIBBPF)
 	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(__OBJS) $(LIBS)
 
 $(OUTPUT)%.o: %.c
-	$(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
+	$(QUIET_CC)$(CC) $(CFLAGS) -c -MMD -o $@ $<
 
 clean: $(LIBBPF)-clean
 	$(call QUIET_CLEAN, bpftool)