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authorJakub Kicinski <kuba@kernel.org>2024-04-11 22:05:34 +0300
committerJakub Kicinski <kuba@kernel.org>2024-04-18 04:18:39 +0300
commit6fc6d7f59376c7cda4d866159b29fe96d96afe83 (patch)
tree0f35dacc415ed7d9db743de4fee431c62adb7e6f /tools
parent2bd99aef1b19e6da09eff692bc0a09d61d785782 (diff)
downloadlinux-6fc6d7f59376c7cda4d866159b29fe96d96afe83.tar.xz
selftests: adopt BPF's approach to quieter builds
selftest build is fairly noisy, it's easy to miss warnings. It's standard practice to add alternative messages in the Makefile. I was grepping for existing solutions, and found that bpf already has the right knobs. Move them to lib.mk and adopt in net. Convert the basic rules in lib.mk. Acked-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/r/20240411190534.444918-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/selftests/bpf/Makefile13
-rw-r--r--tools/testing/selftests/lib.mk17
-rw-r--r--tools/testing/selftests/net/Makefile9
3 files changed, 23 insertions, 16 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index b0be07f29dde..f06c527eee34 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -135,18 +135,7 @@ TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \
TEST_GEN_FILES += liburandom_read.so urandom_read sign-file uprobe_multi
-# Emit succinct information message describing current building step
-# $1 - generic step name (e.g., CC, LINK, etc);
-# $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];
-# $3 - target (assumed to be file); only file name will be emitted;
-# $4 - optional extra arg, emitted as-is, if provided.
-ifeq ($(V),1)
-Q =
-msg =
-else
-Q = @
-msg = @printf ' %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
-MAKEFLAGS += --no-print-directory
+ifneq ($(V),1)
submake_extras := feature_display=0
endif
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index da2cade3bab0..aeeac5f83492 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -44,6 +44,20 @@ endif
selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
top_srcdir = $(selfdir)/../../..
+# msg: emit succinct information message describing current building step
+# $1 - generic step name (e.g., CC, LINK, etc);
+# $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];
+# $3 - target (assumed to be file); only file name will be emitted;
+# $4 - optional extra arg, emitted as-is, if provided.
+ifeq ($(V),1)
+Q =
+msg =
+else
+Q = @
+msg = @printf ' %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
+MAKEFLAGS += --no-print-directory
+endif
+
ifeq ($(KHDR_INCLUDES),)
KHDR_INCLUDES := -isystem $(top_srcdir)/usr/include
endif
@@ -176,7 +190,8 @@ endif
ifeq ($(OVERRIDE_TARGETS),)
LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
$(OUTPUT)/%:%.c $(LOCAL_HDRS)
- $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@
+ $(call msg,CC,,$@)
+ $(Q)$(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@
$(OUTPUT)/%.o:%.S
$(COMPILE.S) $^ -o $@
diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index a3c781cb8367..7e7f243d0ab2 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -125,7 +125,8 @@ BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a
MAKE_DIRS := $(BUILD_DIR)/libbpf
$(MAKE_DIRS):
- mkdir -p $@
+ $(call msg,MKDIR,,$@)
+ $(Q)mkdir -p $@
# Get Clang's default includes on this system, as opposed to those seen by
# '--target=bpf'. This fixes "missing" files on some architectures/distros,
@@ -149,13 +150,15 @@ BPF_PROG_OBJS := $(OUTPUT)/nat6to4.o $(OUTPUT)/xdp_dummy.o \
$(OUTPUT)/sample_map_ret0.bpf.o $(OUTPUT)/sample_ret0.bpf.o
$(BPF_PROG_OBJS): $(OUTPUT)/%.o : %.c $(BPFOBJ) | $(MAKE_DIRS)
- $(CLANG) -O2 -g --target=bpf $(CCINCLUDE) $(CLANG_SYS_INCLUDES) \
+ $(call msg,BPF_PROG,,$@)
+ $(Q)$(CLANG) -O2 -g --target=bpf $(CCINCLUDE) $(CLANG_SYS_INCLUDES) \
-c $< -o $@
$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \
$(APIDIR)/linux/bpf.h \
| $(BUILD_DIR)/libbpf
- $(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
+ $(call msg,MAKE,,$@)
+ $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
EXTRA_CFLAGS='-g -O0' \
DESTDIR=$(SCRATCH_DIR) prefix= all install_headers