summaryrefslogtreecommitdiff
path: root/tools/testing/selftests/bpf
diff options
context:
space:
mode:
Diffstat (limited to 'tools/testing/selftests/bpf')
-rw-r--r--tools/testing/selftests/bpf/.gitignore1
-rw-r--r--tools/testing/selftests/bpf/Makefile51
-rw-r--r--tools/testing/selftests/bpf/test_progs.c33
-rw-r--r--tools/testing/selftests/bpf/test_progs.h2
4 files changed, 59 insertions, 28 deletions
diff --git a/tools/testing/selftests/bpf/.gitignore b/tools/testing/selftests/bpf/.gitignore
index 1bb204cee853..9a0946ddb705 100644
--- a/tools/testing/selftests/bpf/.gitignore
+++ b/tools/testing/selftests/bpf/.gitignore
@@ -6,7 +6,6 @@ test_lpm_map
test_tag
FEATURE-DUMP.libbpf
fixdep
-test_align
test_dev_cgroup
/test_progs*
test_tcpbpf_user
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 22aaec74ea0a..50965cc7bf09 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -32,7 +32,7 @@ LDLIBS += -lcap -lelf -lz -lrt -lpthread
# Order correspond to 'make run_tests' order
TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
- test_align test_verifier_log test_dev_cgroup test_tcpbpf_user \
+ test_verifier_log test_dev_cgroup test_tcpbpf_user \
test_sock test_btf test_sockmap get_cgroup_id_user test_socket_cookie \
test_cgroup_storage \
test_netcnt test_tcpnotify_user test_sock_fields test_sysctl \
@@ -102,7 +102,7 @@ endif
OVERRIDE_TARGETS := 1
override define CLEAN
$(call msg,CLEAN)
- $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
+ $(Q)$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
endef
include ../lib.mk
@@ -122,17 +122,21 @@ $(notdir $(TEST_GEN_PROGS) \
$(TEST_GEN_PROGS_EXTENDED) \
$(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ;
+$(OUTPUT)/%.o: %.c
+ $(call msg,CC,,$@)
+ $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
+
$(OUTPUT)/%:%.c
$(call msg,BINARY,,$@)
- $(LINK.c) $^ $(LDLIBS) -o $@
+ $(Q)$(LINK.c) $^ $(LDLIBS) -o $@
$(OUTPUT)/urandom_read: urandom_read.c
$(call msg,BINARY,,$@)
- $(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id
+ $(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id
$(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ)
$(call msg,CC,,$@)
- $(CC) -c $(CFLAGS) -o $@ $<
+ $(Q)$(CC) -c $(CFLAGS) -o $@ $<
VMLINUX_BTF_PATHS := $(if $(O),$(O)/vmlinux) \
$(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \
@@ -141,7 +145,9 @@ VMLINUX_BTF_PATHS := $(if $(O),$(O)/vmlinux) \
/boot/vmlinux-$(shell uname -r)
VMLINUX_BTF := $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
-$(OUTPUT)/runqslower: $(BPFOBJ)
+DEFAULT_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool
+
+$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL)
$(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \
OUTPUT=$(SCRATCH_DIR)/ VMLINUX_BTF=$(VMLINUX_BTF) \
BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) && \
@@ -163,7 +169,6 @@ $(OUTPUT)/test_netcnt: cgroup_helpers.c
$(OUTPUT)/test_sock_fields: cgroup_helpers.c
$(OUTPUT)/test_sysctl: cgroup_helpers.c
-DEFAULT_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool
BPFTOOL ?= $(DEFAULT_BPFTOOL)
$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \
$(BPFOBJ) | $(BUILD_DIR)/bpftool
@@ -179,11 +184,11 @@ $(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \
$(BUILD_DIR)/libbpf $(BUILD_DIR)/bpftool $(INCLUDE_DIR):
$(call msg,MKDIR,,$@)
- mkdir -p $@
+ $(Q)mkdir -p $@
$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) | $(BPFTOOL) $(INCLUDE_DIR)
$(call msg,GEN,,$@)
- $(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
+ $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
# Get Clang's default includes on this system, as opposed to those seen by
# '-target bpf'. This fixes "missing" files on some architectures/distros,
@@ -221,28 +226,28 @@ $(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
# $4 - LDFLAGS
define CLANG_BPF_BUILD_RULE
$(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2)
- ($(CLANG) $3 -O2 -target bpf -emit-llvm \
+ $(Q)($(CLANG) $3 -O2 -target bpf -emit-llvm \
-c $1 -o - || echo "BPF obj compilation failed") | \
$(LLC) -mattr=dwarfris -march=bpf -mcpu=v3 $4 -filetype=obj -o $2
endef
# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
define CLANG_NOALU32_BPF_BUILD_RULE
$(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2)
- ($(CLANG) $3 -O2 -target bpf -emit-llvm \
+ $(Q)($(CLANG) $3 -O2 -target bpf -emit-llvm \
-c $1 -o - || echo "BPF obj compilation failed") | \
$(LLC) -march=bpf -mcpu=v2 $4 -filetype=obj -o $2
endef
# Similar to CLANG_BPF_BUILD_RULE, but using native Clang and bpf LLC
define CLANG_NATIVE_BPF_BUILD_RULE
$(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
- ($(CLANG) $3 -O2 -emit-llvm \
+ $(Q)($(CLANG) $3 -O2 -emit-llvm \
-c $1 -o - || echo "BPF obj compilation failed") | \
$(LLC) -march=bpf -mcpu=v3 $4 -filetype=obj -o $2
endef
# Build BPF object using GCC
define GCC_BPF_BUILD_RULE
$(call msg,GCC-BPF,$(TRUNNER_BINARY),$2)
- $(BPF_GCC) $3 $4 -O2 -c $1 -o $2
+ $(Q)$(BPF_GCC) $3 $4 -O2 -c $1 -o $2
endef
SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c
@@ -284,7 +289,7 @@ ifeq ($($(TRUNNER_OUTPUT)-dir),)
$(TRUNNER_OUTPUT)-dir := y
$(TRUNNER_OUTPUT):
$$(call msg,MKDIR,,$$@)
- mkdir -p $$@
+ $(Q)mkdir -p $$@
endif
# ensure we set up BPF objects generation rule just once for a given
@@ -304,7 +309,7 @@ $(TRUNNER_BPF_SKELS): $(TRUNNER_OUTPUT)/%.skel.h: \
$(TRUNNER_OUTPUT)/%.o \
| $(BPFTOOL) $(TRUNNER_OUTPUT)
$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
- $$(BPFTOOL) gen skeleton $$< > $$@
+ $(Q)$$(BPFTOOL) gen skeleton $$< > $$@
endif
# ensure we set up tests.h header generation rule just once
@@ -328,7 +333,7 @@ $(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \
$(TRUNNER_BPF_SKELS) \
$$(BPFOBJ) | $(TRUNNER_OUTPUT)
$$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)
- cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)
+ $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)
$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \
%.c \
@@ -336,20 +341,20 @@ $(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \
$(TRUNNER_TESTS_HDR) \
$$(BPFOBJ) | $(TRUNNER_OUTPUT)
$$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@)
- $$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
+ $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
# only copy extra resources if in flavored build
$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT)
ifneq ($2,)
$$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES))
- cp -a $$^ $(TRUNNER_OUTPUT)/
+ $(Q)cp -a $$^ $(TRUNNER_OUTPUT)/
endif
$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \
$(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \
| $(TRUNNER_BINARY)-extras
$$(call msg,BINARY,,$$@)
- $$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@
+ $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@
endef
@@ -402,17 +407,17 @@ verifier/tests.h: verifier/*.c
) > verifier/tests.h)
$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT)
$(call msg,BINARY,,$@)
- $(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
+ $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
# Make sure we are able to include and link libbpf against c++.
$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ)
$(call msg,CXX,,$@)
- $(CXX) $(CFLAGS) $^ $(LDLIBS) -o $@
+ $(Q)$(CXX) $(CFLAGS) $^ $(LDLIBS) -o $@
# Benchmark runner
$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h
$(call msg,CC,,$@)
- $(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
+ $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h
$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h
$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \
@@ -425,7 +430,7 @@ $(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.o \
$(OUTPUT)/bench_trigger.o \
$(OUTPUT)/bench_ringbufs.o
$(call msg,BINARY,,$@)
- $(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS)
+ $(Q)$(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS)
EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) \
prog_tests/tests.h map_tests/tests.h verifier/tests.h \
diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
index 54fa5fa688ce..d498b6aa63a4 100644
--- a/tools/testing/selftests/bpf/test_progs.c
+++ b/tools/testing/selftests/bpf/test_progs.c
@@ -12,6 +12,9 @@
#include <string.h>
#include <execinfo.h> /* backtrace */
+#define EXIT_NO_TEST 2
+#define EXIT_ERR_SETUP_INFRA 3
+
/* defined in test_progs.h */
struct test_env env = {};
@@ -111,13 +114,31 @@ static void reset_affinity() {
if (err < 0) {
stdio_restore();
fprintf(stderr, "Failed to reset process affinity: %d!\n", err);
- exit(-1);
+ exit(EXIT_ERR_SETUP_INFRA);
}
err = pthread_setaffinity_np(pthread_self(), sizeof(cpuset), &cpuset);
if (err < 0) {
stdio_restore();
fprintf(stderr, "Failed to reset thread affinity: %d!\n", err);
- exit(-1);
+ exit(EXIT_ERR_SETUP_INFRA);
+ }
+}
+
+static void save_netns(void)
+{
+ env.saved_netns_fd = open("/proc/self/ns/net", O_RDONLY);
+ if (env.saved_netns_fd == -1) {
+ perror("open(/proc/self/ns/net)");
+ exit(EXIT_ERR_SETUP_INFRA);
+ }
+}
+
+static void restore_netns(void)
+{
+ if (setns(env.saved_netns_fd, CLONE_NEWNET) == -1) {
+ stdio_restore();
+ perror("setns(CLONE_NEWNS)");
+ exit(EXIT_ERR_SETUP_INFRA);
}
}
@@ -138,8 +159,6 @@ void test__end_subtest()
test->test_num, test->subtest_num,
test->subtest_name, sub_error_cnt ? "FAIL" : "OK");
- reset_affinity();
-
free(test->subtest_name);
test->subtest_name = NULL;
}
@@ -643,6 +662,7 @@ int main(int argc, char **argv)
return -1;
}
+ save_netns();
stdio_hijack();
for (i = 0; i < prog_test_cnt; i++) {
struct prog_test_def *test = &prog_test_defs[i];
@@ -673,6 +693,7 @@ int main(int argc, char **argv)
test->error_cnt ? "FAIL" : "OK");
reset_affinity();
+ restore_netns();
if (test->need_cgroup_cleanup)
cleanup_cgroup_environment();
}
@@ -686,6 +707,10 @@ int main(int argc, char **argv)
free_str_set(&env.subtest_selector.blacklist);
free_str_set(&env.subtest_selector.whitelist);
free(env.subtest_selector.num_set);
+ close(env.saved_netns_fd);
+
+ if (env.succ_cnt + env.fail_cnt + env.skip_cnt == 0)
+ return EXIT_NO_TEST;
return env.fail_cnt ? EXIT_FAILURE : EXIT_SUCCESS;
}
diff --git a/tools/testing/selftests/bpf/test_progs.h b/tools/testing/selftests/bpf/test_progs.h
index f4503c926aca..b80924603918 100644
--- a/tools/testing/selftests/bpf/test_progs.h
+++ b/tools/testing/selftests/bpf/test_progs.h
@@ -78,6 +78,8 @@ struct test_env {
int sub_succ_cnt; /* successful sub-tests */
int fail_cnt; /* total failed tests + sub-tests */
int skip_cnt; /* skipped tests */
+
+ int saved_netns_fd;
};
extern struct test_env env;
generated by cgit v1.2.3 (git 2.39.0) at 2025-08-21 06:25:54 +0300