From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: davem@davemloft.net
Cc: daniel@iogearbox.net, andrii@kernel.org,
john.fastabend@gmail.com, bpf@vger.kernel.org,
kernel-team@fb.com
Subject: [PATCH v4 bpf-next 19/22] selftests/bpf: Convert few tests to light skeleton.
Date: Fri, 7 May 2021 20:48:34 -0700 [thread overview]
Message-ID: <20210508034837.64585-20-alexei.starovoitov@gmail.com> (raw)
In-Reply-To: <20210508034837.64585-1-alexei.starovoitov@gmail.com>
From: Alexei Starovoitov <ast@kernel.org>
Convert few tests that don't use CO-RE to light skeleton.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
---
tools/testing/selftests/bpf/.gitignore | 1 +
tools/testing/selftests/bpf/Makefile | 16 +++++++++++++++-
.../selftests/bpf/prog_tests/fentry_fexit.c | 6 +++---
.../selftests/bpf/prog_tests/fentry_test.c | 10 +++++-----
.../selftests/bpf/prog_tests/fexit_sleep.c | 6 +++---
.../selftests/bpf/prog_tests/fexit_test.c | 10 +++++-----
.../selftests/bpf/prog_tests/kfunc_call.c | 6 +++---
.../selftests/bpf/prog_tests/ksyms_module.c | 2 +-
tools/testing/selftests/bpf/prog_tests/ringbuf.c | 8 +++-----
tools/testing/selftests/bpf/progs/test_ringbuf.c | 4 ++--
10 files changed, 41 insertions(+), 28 deletions(-)
diff --git a/tools/testing/selftests/bpf/.gitignore b/tools/testing/selftests/bpf/.gitignore
index 4866f6a21901..a030aa4a8a9e 100644
--- a/tools/testing/selftests/bpf/.gitignore
+++ b/tools/testing/selftests/bpf/.gitignore
@@ -30,6 +30,7 @@ test_sysctl
xdping
test_cpp
*.skel.h
+*.lskel.h
/no_alu32
/bpf_gcc
/tools
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 283e5ad8385e..f794f16c79b8 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -312,6 +312,10 @@ SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c
LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \
linked_vars.skel.h linked_maps.skel.h
+LSKELS := kfunc_call_test.c fentry_test.c fexit_test.c fexit_sleep.c \
+ test_ksyms_module.c test_ringbuf.c
+SKEL_BLACKLIST += $$(LSKELS)
+
test_static_linked.skel.h-deps := test_static_linked1.o test_static_linked2.o
linked_funcs.skel.h-deps := linked_funcs1.o linked_funcs2.o
linked_vars.skel.h-deps := linked_vars1.o linked_vars2.o
@@ -339,6 +343,7 @@ TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, $$(TRUNNER_BPF_SRCS)
TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \
$$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\
$$(TRUNNER_BPF_SRCS)))
+TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS))
TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS))
TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS)
@@ -380,6 +385,14 @@ $(TRUNNER_BPF_SKELS): %.skel.h: %.o $(BPFTOOL) | $(TRUNNER_OUTPUT)
$(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o)
$(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.o=)) > $$@
+$(TRUNNER_BPF_LSKELS): %.lskel.h: %.o $(BPFTOOL) | $(TRUNNER_OUTPUT)
+ $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
+ $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$<
+ $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o)
+ $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o)
+ $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o)
+ $(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.linked3.o) name $$(notdir $$(<:.o=)) > $$@
+
$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_BPF_OBJS) $(BPFTOOL) | $(TRUNNER_OUTPUT)
$$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.o))
$(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps))
@@ -409,6 +422,7 @@ $(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \
$(TRUNNER_EXTRA_HDRS) \
$(TRUNNER_BPF_OBJS) \
$(TRUNNER_BPF_SKELS) \
+ $(TRUNNER_BPF_LSKELS) \
$(TRUNNER_BPF_SKELS_LINKED) \
$$(BPFOBJ) | $(TRUNNER_OUTPUT)
$$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)
@@ -516,6 +530,6 @@ $(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.o \
EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \
prog_tests/tests.h map_tests/tests.h verifier/tests.h \
feature \
- $(addprefix $(OUTPUT)/,*.o *.skel.h no_alu32 bpf_gcc bpf_testmod.ko)
+ $(addprefix $(OUTPUT)/,*.o *.skel.h *.lskel.h no_alu32 bpf_gcc bpf_testmod.ko)
.PHONY: docs docs-clean
diff --git a/tools/testing/selftests/bpf/prog_tests/fentry_fexit.c b/tools/testing/selftests/bpf/prog_tests/fentry_fexit.c
index 109d0345a2be..91154c2ba256 100644
--- a/tools/testing/selftests/bpf/prog_tests/fentry_fexit.c
+++ b/tools/testing/selftests/bpf/prog_tests/fentry_fexit.c
@@ -1,8 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2019 Facebook */
#include <test_progs.h>
-#include "fentry_test.skel.h"
-#include "fexit_test.skel.h"
+#include "fentry_test.lskel.h"
+#include "fexit_test.lskel.h"
void test_fentry_fexit(void)
{
@@ -26,7 +26,7 @@ void test_fentry_fexit(void)
if (CHECK(err, "fexit_attach", "fexit attach failed: %d\n", err))
goto close_prog;
- prog_fd = bpf_program__fd(fexit_skel->progs.test1);
+ prog_fd = fexit_skel->progs.test1.prog_fd;
err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
NULL, NULL, &retval, &duration);
CHECK(err || retval, "ipv6",
diff --git a/tools/testing/selftests/bpf/prog_tests/fentry_test.c b/tools/testing/selftests/bpf/prog_tests/fentry_test.c
index 7cb111b11995..174c89e7456e 100644
--- a/tools/testing/selftests/bpf/prog_tests/fentry_test.c
+++ b/tools/testing/selftests/bpf/prog_tests/fentry_test.c
@@ -1,13 +1,13 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2019 Facebook */
#include <test_progs.h>
-#include "fentry_test.skel.h"
+#include "fentry_test.lskel.h"
static int fentry_test(struct fentry_test *fentry_skel)
{
int err, prog_fd, i;
__u32 duration = 0, retval;
- struct bpf_link *link;
+ int link_fd;
__u64 *result;
err = fentry_test__attach(fentry_skel);
@@ -15,11 +15,11 @@ static int fentry_test(struct fentry_test *fentry_skel)
return err;
/* Check that already linked program can't be attached again. */
- link = bpf_program__attach(fentry_skel->progs.test1);
- if (!ASSERT_ERR_PTR(link, "fentry_attach_link"))
+ link_fd = fentry_test__test1__attach(fentry_skel);
+ if (!ASSERT_LT(link_fd, 0, "fentry_attach_link"))
return -1;
- prog_fd = bpf_program__fd(fentry_skel->progs.test1);
+ prog_fd = fentry_skel->progs.test1.prog_fd;
err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
NULL, NULL, &retval, &duration);
ASSERT_OK(err, "test_run");
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_sleep.c b/tools/testing/selftests/bpf/prog_tests/fexit_sleep.c
index ccc7e8a34ab6..4e7f4b42ea29 100644
--- a/tools/testing/selftests/bpf/prog_tests/fexit_sleep.c
+++ b/tools/testing/selftests/bpf/prog_tests/fexit_sleep.c
@@ -6,7 +6,7 @@
#include <time.h>
#include <sys/mman.h>
#include <sys/syscall.h>
-#include "fexit_sleep.skel.h"
+#include "fexit_sleep.lskel.h"
static int do_sleep(void *skel)
{
@@ -58,8 +58,8 @@ void test_fexit_sleep(void)
* waiting for percpu_ref_kill to confirm). The other one
* will be freed quickly.
*/
- close(bpf_program__fd(fexit_skel->progs.nanosleep_fentry));
- close(bpf_program__fd(fexit_skel->progs.nanosleep_fexit));
+ close(fexit_skel->progs.nanosleep_fentry.prog_fd);
+ close(fexit_skel->progs.nanosleep_fexit.prog_fd);
fexit_sleep__detach(fexit_skel);
/* kill the thread to unwind sys_nanosleep stack through the trampoline */
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_test.c b/tools/testing/selftests/bpf/prog_tests/fexit_test.c
index 6792e41f7f69..af3dba726701 100644
--- a/tools/testing/selftests/bpf/prog_tests/fexit_test.c
+++ b/tools/testing/selftests/bpf/prog_tests/fexit_test.c
@@ -1,13 +1,13 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2019 Facebook */
#include <test_progs.h>
-#include "fexit_test.skel.h"
+#include "fexit_test.lskel.h"
static int fexit_test(struct fexit_test *fexit_skel)
{
int err, prog_fd, i;
__u32 duration = 0, retval;
- struct bpf_link *link;
+ int link_fd;
__u64 *result;
err = fexit_test__attach(fexit_skel);
@@ -15,11 +15,11 @@ static int fexit_test(struct fexit_test *fexit_skel)
return err;
/* Check that already linked program can't be attached again. */
- link = bpf_program__attach(fexit_skel->progs.test1);
- if (!ASSERT_ERR_PTR(link, "fexit_attach_link"))
+ link_fd = fexit_test__test1__attach(fexit_skel);
+ if (!ASSERT_LT(link_fd, 0, "fexit_attach_link"))
return -1;
- prog_fd = bpf_program__fd(fexit_skel->progs.test1);
+ prog_fd = fexit_skel->progs.test1.prog_fd;
err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
NULL, NULL, &retval, &duration);
ASSERT_OK(err, "test_run");
diff --git a/tools/testing/selftests/bpf/prog_tests/kfunc_call.c b/tools/testing/selftests/bpf/prog_tests/kfunc_call.c
index 7fc0951ee75f..30a7b9b837bf 100644
--- a/tools/testing/selftests/bpf/prog_tests/kfunc_call.c
+++ b/tools/testing/selftests/bpf/prog_tests/kfunc_call.c
@@ -2,7 +2,7 @@
/* Copyright (c) 2021 Facebook */
#include <test_progs.h>
#include <network_helpers.h>
-#include "kfunc_call_test.skel.h"
+#include "kfunc_call_test.lskel.h"
#include "kfunc_call_test_subprog.skel.h"
static void test_main(void)
@@ -14,13 +14,13 @@ static void test_main(void)
if (!ASSERT_OK_PTR(skel, "skel"))
return;
- prog_fd = bpf_program__fd(skel->progs.kfunc_call_test1);
+ prog_fd = skel->progs.kfunc_call_test1.prog_fd;
err = bpf_prog_test_run(prog_fd, 1, &pkt_v4, sizeof(pkt_v4),
NULL, NULL, (__u32 *)&retval, NULL);
ASSERT_OK(err, "bpf_prog_test_run(test1)");
ASSERT_EQ(retval, 12, "test1-retval");
- prog_fd = bpf_program__fd(skel->progs.kfunc_call_test2);
+ prog_fd = skel->progs.kfunc_call_test2.prog_fd;
err = bpf_prog_test_run(prog_fd, 1, &pkt_v4, sizeof(pkt_v4),
NULL, NULL, (__u32 *)&retval, NULL);
ASSERT_OK(err, "bpf_prog_test_run(test2)");
diff --git a/tools/testing/selftests/bpf/prog_tests/ksyms_module.c b/tools/testing/selftests/bpf/prog_tests/ksyms_module.c
index 4c232b456479..2cd5cded543f 100644
--- a/tools/testing/selftests/bpf/prog_tests/ksyms_module.c
+++ b/tools/testing/selftests/bpf/prog_tests/ksyms_module.c
@@ -4,7 +4,7 @@
#include <test_progs.h>
#include <bpf/libbpf.h>
#include <bpf/btf.h>
-#include "test_ksyms_module.skel.h"
+#include "test_ksyms_module.lskel.h"
static int duration;
diff --git a/tools/testing/selftests/bpf/prog_tests/ringbuf.c b/tools/testing/selftests/bpf/prog_tests/ringbuf.c
index de78617f6550..80c11ac0ffb1 100644
--- a/tools/testing/selftests/bpf/prog_tests/ringbuf.c
+++ b/tools/testing/selftests/bpf/prog_tests/ringbuf.c
@@ -12,7 +12,7 @@
#include <sys/sysinfo.h>
#include <linux/perf_event.h>
#include <linux/ring_buffer.h>
-#include "test_ringbuf.skel.h"
+#include "test_ringbuf.lskel.h"
#define EDONE 7777
@@ -93,9 +93,7 @@ void test_ringbuf(void)
if (CHECK(!skel, "skel_open", "skeleton open failed\n"))
return;
- err = bpf_map__set_max_entries(skel->maps.ringbuf, page_size);
- if (CHECK(err != 0, "bpf_map__set_max_entries", "bpf_map__set_max_entries failed\n"))
- goto cleanup;
+ skel->maps.ringbuf.max_entries = page_size;
err = test_ringbuf__load(skel);
if (CHECK(err != 0, "skel_load", "skeleton load failed\n"))
@@ -104,7 +102,7 @@ void test_ringbuf(void)
/* only trigger BPF program for current process */
skel->bss->pid = getpid();
- ringbuf = ring_buffer__new(bpf_map__fd(skel->maps.ringbuf),
+ ringbuf = ring_buffer__new(skel->maps.ringbuf.map_fd,
process_sample, NULL, NULL);
if (CHECK(!ringbuf, "ringbuf_create", "failed to create ringbuf\n"))
goto cleanup;
diff --git a/tools/testing/selftests/bpf/progs/test_ringbuf.c b/tools/testing/selftests/bpf/progs/test_ringbuf.c
index 6b3f288b7c63..eaa7d9dba0be 100644
--- a/tools/testing/selftests/bpf/progs/test_ringbuf.c
+++ b/tools/testing/selftests/bpf/progs/test_ringbuf.c
@@ -35,7 +35,7 @@ long prod_pos = 0;
/* inner state */
long seq = 0;
-SEC("tp/syscalls/sys_enter_getpgid")
+SEC("fentry/__x64_sys_getpgid")
int test_ringbuf(void *ctx)
{
int cur_pid = bpf_get_current_pid_tgid() >> 32;
@@ -48,7 +48,7 @@ int test_ringbuf(void *ctx)
sample = bpf_ringbuf_reserve(&ringbuf, sizeof(*sample), 0);
if (!sample) {
__sync_fetch_and_add(&dropped, 1);
- return 1;
+ return 0;
}
sample->pid = pid;
--
2.30.2
next prev parent reply other threads:[~2021-05-08 3:49 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-08 3:48 [PATCH v4 bpf-next 00/22] bpf: syscall program, FD array, loader program, light skeleton Alexei Starovoitov
2021-05-08 3:48 ` [PATCH v4 bpf-next 01/22] bpf: Introduce bpf_sys_bpf() helper and program type Alexei Starovoitov
2021-05-08 3:48 ` [PATCH v4 bpf-next 02/22] bpf: Introduce bpfptr_t user/kernel pointer Alexei Starovoitov
2021-05-11 22:23 ` Andrii Nakryiko
2021-05-08 3:48 ` [PATCH v4 bpf-next 03/22] bpf: Prepare bpf syscall to be used from kernel and user space Alexei Starovoitov
2021-05-11 22:31 ` Andrii Nakryiko
2021-05-08 3:48 ` [PATCH v4 bpf-next 04/22] libbpf: Support for syscall program type Alexei Starovoitov
2021-05-08 3:48 ` [PATCH v4 bpf-next 05/22] selftests/bpf: Test " Alexei Starovoitov
2021-05-11 22:36 ` Andrii Nakryiko
2021-05-11 22:44 ` Andrii Nakryiko
2021-05-08 3:48 ` [PATCH v4 bpf-next 06/22] bpf: Make btf_load command to be bpfptr_t compatible Alexei Starovoitov
2021-05-11 22:41 ` Andrii Nakryiko
2021-05-08 3:48 ` [PATCH v4 bpf-next 07/22] selftests/bpf: Test for btf_load command Alexei Starovoitov
2021-05-11 22:45 ` Andrii Nakryiko
2021-05-12 4:04 ` Alexei Starovoitov
2021-05-12 18:00 ` Andrii Nakryiko
2021-05-08 3:48 ` [PATCH v4 bpf-next 08/22] bpf: Introduce fd_idx Alexei Starovoitov
2021-05-11 22:47 ` Andrii Nakryiko
2021-05-08 3:48 ` [PATCH v4 bpf-next 09/22] libbpf: Support for fd_idx Alexei Starovoitov
2021-05-11 22:57 ` Andrii Nakryiko
2021-05-08 3:48 ` [PATCH v4 bpf-next 10/22] bpf: Add bpf_btf_find_by_name_kind() helper Alexei Starovoitov
2021-05-11 23:02 ` Andrii Nakryiko
2021-05-08 3:48 ` [PATCH v4 bpf-next 11/22] bpf: Add bpf_sys_close() helper Alexei Starovoitov
2021-05-08 3:48 ` [PATCH v4 bpf-next 12/22] libbpf: Change the order of data and text relocations Alexei Starovoitov
2021-05-11 23:06 ` Andrii Nakryiko
2021-05-08 3:48 ` [PATCH v4 bpf-next 13/22] libbpf: Add bpf_object pointer to kernel_supports() Alexei Starovoitov
2021-05-08 3:48 ` [PATCH v4 bpf-next 14/22] libbpf: Generate loader program out of BPF ELF file Alexei Starovoitov
2021-05-11 23:22 ` Andrii Nakryiko
2021-05-08 3:48 ` [PATCH v4 bpf-next 15/22] libbpf: Use fd_array only with gen_loader Alexei Starovoitov
2021-05-11 23:24 ` Andrii Nakryiko
2021-05-12 4:17 ` Alexei Starovoitov
2021-05-12 18:11 ` Andrii Nakryiko
2021-05-08 3:48 ` [PATCH v4 bpf-next 16/22] libbpf: Cleanup temp FDs when intermediate sys_bpf fails Alexei Starovoitov
2021-05-11 23:34 ` Andrii Nakryiko
2021-05-12 4:33 ` Alexei Starovoitov
2021-05-08 3:48 ` [PATCH v4 bpf-next 17/22] libbpf: Introduce bpf_map__get_initial_value() Alexei Starovoitov
2021-05-11 23:39 ` Andrii Nakryiko
2021-05-08 3:48 ` [PATCH v4 bpf-next 18/22] bpftool: Use syscall/loader program in "prog load" and "gen skeleton" command Alexei Starovoitov
2021-05-12 4:17 ` Andrii Nakryiko
2021-05-12 18:43 ` Alexei Starovoitov
2021-05-12 18:55 ` Andrii Nakryiko
2021-05-08 3:48 ` Alexei Starovoitov [this message]
2021-05-12 4:19 ` [PATCH v4 bpf-next 19/22] selftests/bpf: Convert few tests to light skeleton Andrii Nakryiko
2021-05-08 3:48 ` [PATCH v4 bpf-next 20/22] selftests/bpf: Convert atomics test " Alexei Starovoitov
2021-05-12 4:21 ` Andrii Nakryiko
2021-05-08 3:48 ` [PATCH v4 bpf-next 21/22] selftests/bpf: Convert test printk to use rodata Alexei Starovoitov
2021-05-12 4:23 ` Andrii Nakryiko
2021-05-08 3:48 ` [PATCH v4 bpf-next 22/22] selftests/bpf: Convert test trace_printk to lskel Alexei Starovoitov
2021-05-12 4:24 ` Andrii Nakryiko
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