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Date: Tue, 8 Oct 2019 16:10:07 -0700
From: Andrii Nakryiko <andriin@...com>
To: <bpf@...r.kernel.org>, <netdev@...r.kernel.org>, <ast@...com>,
<daniel@...earbox.net>, <john.fastabend@...il.com>
CC: <andrii.nakryiko@...il.com>, <kernel-team@...com>,
Andrii Nakryiko <andriin@...com>
Subject: [PATCH bpf-next 2/3] selftests/bpf: convert test_btf_dump into test_progs test
Convert test_btf_dump into a part of test_progs, instead of
a stand-alone test binary.
Signed-off-by: Andrii Nakryiko <andriin@...com>
---
tools/testing/selftests/bpf/Makefile | 2 +-
.../btf_dump.c} | 88 +++++++------------
2 files changed, 35 insertions(+), 55 deletions(-)
rename tools/testing/selftests/bpf/{test_btf_dump.c => prog_tests/btf_dump.c} (51%)
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 771a4e82128b..0de5d6eb62de 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -29,7 +29,7 @@ TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test
test_sock test_btf test_sockmap get_cgroup_id_user test_socket_cookie \
test_cgroup_storage test_select_reuseport test_section_names \
test_netcnt test_tcpnotify_user test_sock_fields test_sysctl test_hashmap \
- test_btf_dump test_cgroup_attach xdping
+ test_cgroup_attach xdping
BPF_OBJ_FILES = $(patsubst %.c,%.o, $(notdir $(wildcard progs/*.c)))
TEST_GEN_FILES = $(BPF_OBJ_FILES)
diff --git a/tools/testing/selftests/bpf/test_btf_dump.c b/tools/testing/selftests/bpf/prog_tests/btf_dump.c
similarity index 51%
rename from tools/testing/selftests/bpf/test_btf_dump.c
rename to tools/testing/selftests/bpf/prog_tests/btf_dump.c
index 6e75dd3cb14f..7390d3061065 100644
--- a/tools/testing/selftests/bpf/test_btf_dump.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf_dump.c
@@ -1,36 +1,26 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-#include <linux/err.h>
-#include <btf.h>
-
-#define CHECK(condition, format...) ({ \
- int __ret = !!(condition); \
- if (__ret) { \
- fprintf(stderr, "%s:%d:FAIL ", __func__, __LINE__); \
- fprintf(stderr, format); \
- } \
- __ret; \
-})
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+static int duration = 0;
void btf_dump_printf(void *ctx, const char *fmt, va_list args)
{
vfprintf(ctx, fmt, args);
}
-struct btf_dump_test_case {
+static struct btf_dump_test_case {
const char *name;
+ const char *file;
struct btf_dump_opts opts;
} btf_dump_test_cases[] = {
- {.name = "btf_dump_test_case_syntax", .opts = {}},
- {.name = "btf_dump_test_case_ordering", .opts = {}},
- {.name = "btf_dump_test_case_padding", .opts = {}},
- {.name = "btf_dump_test_case_packing", .opts = {}},
- {.name = "btf_dump_test_case_bitfields", .opts = {}},
- {.name = "btf_dump_test_case_multidim", .opts = {}},
- {.name = "btf_dump_test_case_namespacing", .opts = {}},
+ {"btf_dump: syntax", "btf_dump_test_case_syntax", {}},
+ {"btf_dump: ordering", "btf_dump_test_case_ordering", {}},
+ {"btf_dump: padding", "btf_dump_test_case_padding", {}},
+ {"btf_dump: packing", "btf_dump_test_case_packing", {}},
+ {"btf_dump: bitfields", "btf_dump_test_case_bitfields", {}},
+ {"btf_dump: multidim", "btf_dump_test_case_multidim", {}},
+ {"btf_dump: namespacing", "btf_dump_test_case_namespacing", {}},
};
static int btf_dump_all_types(const struct btf *btf,
@@ -55,55 +45,51 @@ static int btf_dump_all_types(const struct btf *btf,
return err;
}
-int test_btf_dump_case(int n, struct btf_dump_test_case *test_case)
+static int test_btf_dump_case(int n, struct btf_dump_test_case *t)
{
char test_file[256], out_file[256], diff_cmd[1024];
struct btf *btf = NULL;
int err = 0, fd = -1;
FILE *f = NULL;
- fprintf(stderr, "Test case #%d (%s): ", n, test_case->name);
-
- snprintf(test_file, sizeof(test_file), "%s.o", test_case->name);
+ snprintf(test_file, sizeof(test_file), "%s.o", t->file);
btf = btf__parse_elf(test_file, NULL);
- if (CHECK(IS_ERR(btf),
+ if (CHECK(IS_ERR(btf), "btf_parse_elf",
"failed to load test BTF: %ld\n", PTR_ERR(btf))) {
err = -PTR_ERR(btf);
btf = NULL;
goto done;
}
- snprintf(out_file, sizeof(out_file),
- "/tmp/%s.output.XXXXXX", test_case->name);
+ snprintf(out_file, sizeof(out_file), "/tmp/%s.output.XXXXXX", t->file);
fd = mkstemp(out_file);
- if (CHECK(fd < 0, "failed to create temp output file: %d\n", fd)) {
+ if (CHECK(fd < 0, "create_tmp", "failed to create file: %d\n", fd)) {
err = fd;
goto done;
}
f = fdopen(fd, "w");
- if (CHECK(f == NULL, "failed to open temp output file: %s(%d)\n",
+ if (CHECK(f == NULL, "open_tmp", "failed to open file: %s(%d)\n",
strerror(errno), errno)) {
close(fd);
goto done;
}
- test_case->opts.ctx = f;
- err = btf_dump_all_types(btf, &test_case->opts);
+ t->opts.ctx = f;
+ err = btf_dump_all_types(btf, &t->opts);
fclose(f);
close(fd);
- if (CHECK(err, "failure during C dumping: %d\n", err)) {
+ if (CHECK(err, "btf_dump", "failure during C dumping: %d\n", err)) {
goto done;
}
- snprintf(test_file, sizeof(test_file), "progs/%s.c", test_case->name);
+ snprintf(test_file, sizeof(test_file), "progs/%s.c", t->file);
if (access(test_file, R_OK) == -1)
/*
* When the test is run with O=, kselftest copies TEST_FILES
* without preserving the directory structure.
*/
- snprintf(test_file, sizeof(test_file), "%s.c",
- test_case->name);
+ snprintf(test_file, sizeof(test_file), "%s.c", t->file);
/*
* Diff test output and expected test output, contained between
* START-EXPECTED-OUTPUT and END-EXPECTED-OUTPUT lines in test case.
@@ -118,33 +104,27 @@ int test_btf_dump_case(int n, struct btf_dump_test_case *test_case)
"out {sub(/^[ \\t]*\\*/, \"\"); print}' '%s' | diff -u - '%s'",
test_file, out_file);
err = system(diff_cmd);
- if (CHECK(err,
+ if (CHECK(err, "diff",
"differing test output, output=%s, err=%d, diff cmd:\n%s\n",
out_file, err, diff_cmd))
goto done;
remove(out_file);
- fprintf(stderr, "OK\n");
done:
btf__free(btf);
return err;
}
-int main() {
- int test_case_cnt, i, err, failed = 0;
-
- test_case_cnt = sizeof(btf_dump_test_cases) /
- sizeof(btf_dump_test_cases[0]);
+void test_btf_dump() {
+ int i;
- for (i = 0; i < test_case_cnt; i++) {
- err = test_btf_dump_case(i, &btf_dump_test_cases[i]);
- if (err)
- failed++;
- }
+ for (i = 0; i < ARRAY_SIZE(btf_dump_test_cases); i++) {
+ struct btf_dump_test_case *t = &btf_dump_test_cases[i];
- fprintf(stderr, "%d tests succeeded, %d tests failed.\n",
- test_case_cnt - failed, failed);
+ if (!test__start_subtest(t->name))
+ continue;
- return failed;
+ test_btf_dump_case(i, &btf_dump_test_cases[i]);
+ }
}
--
2.17.1
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