diff mbox series

[bpf-next,v3,07/12] selftests/bpf: extract test_loader->expect_msgs as a data structure

Message ID 20240715230201.3901423-8-eddyz87@gmail.com (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series no_caller_saved_registers attribute for helper calls | expand

Checks

Context Check Description
bpf/vmtest-bpf-next-PR success PR summary
bpf/vmtest-bpf-next-VM_Test-2 success Logs for Unittests
bpf/vmtest-bpf-next-VM_Test-1 success Logs for ShellCheck
bpf/vmtest-bpf-next-VM_Test-3 success Logs for Validate matrix.py
bpf/vmtest-bpf-next-VM_Test-0 success Logs for Lint
bpf/vmtest-bpf-next-VM_Test-5 success Logs for aarch64-gcc / build-release
bpf/vmtest-bpf-next-VM_Test-6 success Logs for aarch64-gcc / test (test_maps, false, 360) / test_maps on aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-4 success Logs for aarch64-gcc / build / build for aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-7 success Logs for aarch64-gcc / test (test_progs, false, 360) / test_progs on aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-8 success Logs for aarch64-gcc / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-9 success Logs for aarch64-gcc / test (test_verifier, false, 360) / test_verifier on aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-10 success Logs for aarch64-gcc / veristat
bpf/vmtest-bpf-next-VM_Test-11 success Logs for s390x-gcc / build / build for s390x with gcc
bpf/vmtest-bpf-next-VM_Test-12 success Logs for s390x-gcc / build-release
bpf/vmtest-bpf-next-VM_Test-13 success Logs for s390x-gcc / test (test_maps, false, 360) / test_maps on s390x with gcc
bpf/vmtest-bpf-next-VM_Test-16 success Logs for s390x-gcc / test (test_verifier, false, 360) / test_verifier on s390x with gcc
bpf/vmtest-bpf-next-VM_Test-17 success Logs for s390x-gcc / veristat
bpf/vmtest-bpf-next-VM_Test-18 success Logs for set-matrix
bpf/vmtest-bpf-next-VM_Test-19 success Logs for x86_64-gcc / build / build for x86_64 with gcc
bpf/vmtest-bpf-next-VM_Test-20 success Logs for x86_64-gcc / build-release
bpf/vmtest-bpf-next-VM_Test-21 success Logs for x86_64-gcc / test (test_maps, false, 360) / test_maps on x86_64 with gcc
bpf/vmtest-bpf-next-VM_Test-22 success Logs for x86_64-gcc / test (test_progs, false, 360) / test_progs on x86_64 with gcc
bpf/vmtest-bpf-next-VM_Test-23 success Logs for x86_64-gcc / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on x86_64 with gcc
bpf/vmtest-bpf-next-VM_Test-24 success Logs for x86_64-gcc / test (test_progs_no_alu32_parallel, true, 30) / test_progs_no_alu32_parallel on x86_64 with gcc
bpf/vmtest-bpf-next-VM_Test-25 success Logs for x86_64-gcc / test (test_progs_parallel, true, 30) / test_progs_parallel on x86_64 with gcc
bpf/vmtest-bpf-next-VM_Test-26 success Logs for x86_64-gcc / test (test_verifier, false, 360) / test_verifier on x86_64 with gcc
bpf/vmtest-bpf-next-VM_Test-27 success Logs for x86_64-gcc / veristat / veristat on x86_64 with gcc
bpf/vmtest-bpf-next-VM_Test-28 success Logs for x86_64-llvm-17 / build / build for x86_64 with llvm-17
bpf/vmtest-bpf-next-VM_Test-29 success Logs for x86_64-llvm-17 / build-release / build for x86_64 with llvm-17-O2
bpf/vmtest-bpf-next-VM_Test-30 success Logs for x86_64-llvm-17 / test (test_maps, false, 360) / test_maps on x86_64 with llvm-17
bpf/vmtest-bpf-next-VM_Test-31 success Logs for x86_64-llvm-17 / test (test_progs, false, 360) / test_progs on x86_64 with llvm-17
bpf/vmtest-bpf-next-VM_Test-32 success Logs for x86_64-llvm-17 / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on x86_64 with llvm-17
bpf/vmtest-bpf-next-VM_Test-33 success Logs for x86_64-llvm-17 / test (test_verifier, false, 360) / test_verifier on x86_64 with llvm-17
bpf/vmtest-bpf-next-VM_Test-34 success Logs for x86_64-llvm-17 / veristat
bpf/vmtest-bpf-next-VM_Test-35 success Logs for x86_64-llvm-18 / build / build for x86_64 with llvm-18
bpf/vmtest-bpf-next-VM_Test-36 success Logs for x86_64-llvm-18 / build-release / build for x86_64 with llvm-18-O2
bpf/vmtest-bpf-next-VM_Test-37 success Logs for x86_64-llvm-18 / test (test_maps, false, 360) / test_maps on x86_64 with llvm-18
bpf/vmtest-bpf-next-VM_Test-38 success Logs for x86_64-llvm-18 / test (test_progs, false, 360) / test_progs on x86_64 with llvm-18
bpf/vmtest-bpf-next-VM_Test-39 success Logs for x86_64-llvm-18 / test (test_progs_cpuv4, false, 360) / test_progs_cpuv4 on x86_64 with llvm-18
bpf/vmtest-bpf-next-VM_Test-40 success Logs for x86_64-llvm-18 / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on x86_64 with llvm-18
bpf/vmtest-bpf-next-VM_Test-41 success Logs for x86_64-llvm-18 / test (test_verifier, false, 360) / test_verifier on x86_64 with llvm-18
bpf/vmtest-bpf-next-VM_Test-42 success Logs for x86_64-llvm-18 / veristat
bpf/vmtest-bpf-next-VM_Test-14 success Logs for s390x-gcc / test (test_progs, false, 360) / test_progs on s390x with gcc
bpf/vmtest-bpf-next-VM_Test-15 success Logs for s390x-gcc / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on s390x with gcc
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for bpf-next, async
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 8 this patch: 8
netdev/build_tools success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 9 maintainers not CCed: kpsingh@kernel.org shuah@kernel.org haoluo@google.com john.fastabend@gmail.com jolsa@kernel.org linux-kselftest@vger.kernel.org mykolal@fb.com song@kernel.org sdf@fomichev.me
netdev/build_clang success Errors and warnings before: 8 this patch: 8
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 8 this patch: 8
netdev/checkpatch warning WARNING: line length of 90 exceeds 80 columns WARNING: line length of 93 exceeds 80 columns
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Eduard Zingerman July 15, 2024, 11:01 p.m. UTC 
Non-functional change: use a separate data structure to represented
expected messages in test_loader.
This would allow to use the same functionality for expected set of
disassembled instructions in the follow-up commit.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
---
 tools/testing/selftests/bpf/test_loader.c | 81 ++++++++++++-----------
 1 file changed, 41 insertions(+), 40 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/test_loader.c b/tools/testing/selftests/bpf/test_loader.c
index 47508cf66e89..3f84903558dd 100644
--- a/tools/testing/selftests/bpf/test_loader.c
+++ b/tools/testing/selftests/bpf/test_loader.c
@@ -55,11 +55,15 @@  struct expect_msg {
 	regex_t regex;
 };
 
+struct expected_msgs {
+	struct expect_msg *patterns;
+	size_t cnt;
+};
+
 struct test_subspec {
 	char *name;
 	bool expect_failure;
-	struct expect_msg *expect_msgs;
-	size_t expect_msg_cnt;
+	struct expected_msgs expect_msgs;
 	int retval;
 	bool execute;
 };
@@ -96,44 +100,45 @@  void test_loader_fini(struct test_loader *tester)
 	free(tester->log_buf);
 }
 
-static void free_test_spec(struct test_spec *spec)
+static void free_msgs(struct expected_msgs *msgs)
 {
 	int i;
 
+	for (i = 0; i < msgs->cnt; i++)
+		if (msgs->patterns[i].regex_str)
+			regfree(&msgs->patterns[i].regex);
+	free(msgs->patterns);
+	msgs->patterns = NULL;
+	msgs->cnt = 0;
+}
+
+static void free_test_spec(struct test_spec *spec)
+{
 	/* Deallocate expect_msgs arrays. */
-	for (i = 0; i < spec->priv.expect_msg_cnt; i++)
-		if (spec->priv.expect_msgs[i].regex_str)
-			regfree(&spec->priv.expect_msgs[i].regex);
-	for (i = 0; i < spec->unpriv.expect_msg_cnt; i++)
-		if (spec->unpriv.expect_msgs[i].regex_str)
-			regfree(&spec->unpriv.expect_msgs[i].regex);
+	free_msgs(&spec->priv.expect_msgs);
+	free_msgs(&spec->unpriv.expect_msgs);
 
 	free(spec->priv.name);
 	free(spec->unpriv.name);
-	free(spec->priv.expect_msgs);
-	free(spec->unpriv.expect_msgs);
-
 	spec->priv.name = NULL;
 	spec->unpriv.name = NULL;
-	spec->priv.expect_msgs = NULL;
-	spec->unpriv.expect_msgs = NULL;
 }
 
-static int push_msg(const char *substr, const char *regex_str, struct test_subspec *subspec)
+static int push_msg(const char *substr, const char *regex_str, struct expected_msgs *msgs)
 {
 	void *tmp;
 	int regcomp_res;
 	char error_msg[100];
 	struct expect_msg *msg;
 
-	tmp = realloc(subspec->expect_msgs,
-		      (1 + subspec->expect_msg_cnt) * sizeof(struct expect_msg));
+	tmp = realloc(msgs->patterns,
+		      (1 + msgs->cnt) * sizeof(struct expect_msg));
 	if (!tmp) {
 		ASSERT_FAIL("failed to realloc memory for messages\n");
 		return -ENOMEM;
 	}
-	subspec->expect_msgs = tmp;
-	msg = &subspec->expect_msgs[subspec->expect_msg_cnt];
+	msgs->patterns = tmp;
+	msg = &msgs->patterns[msgs->cnt];
 
 	if (substr) {
 		msg->substr = substr;
@@ -150,7 +155,7 @@  static int push_msg(const char *substr, const char *regex_str, struct test_subsp
 		}
 	}
 
-	subspec->expect_msg_cnt += 1;
+	msgs->cnt += 1;
 	return 0;
 }
 
@@ -272,25 +277,25 @@  static int parse_test_spec(struct test_loader *tester,
 			spec->mode_mask |= UNPRIV;
 		} else if (str_has_pfx(s, TEST_TAG_EXPECT_MSG_PFX)) {
 			msg = s + sizeof(TEST_TAG_EXPECT_MSG_PFX) - 1;
-			err = push_msg(msg, NULL, &spec->priv);
+			err = push_msg(msg, NULL, &spec->priv.expect_msgs);
 			if (err)
 				goto cleanup;
 			spec->mode_mask |= PRIV;
 		} else if (str_has_pfx(s, TEST_TAG_EXPECT_MSG_PFX_UNPRIV)) {
 			msg = s + sizeof(TEST_TAG_EXPECT_MSG_PFX_UNPRIV) - 1;
-			err = push_msg(msg, NULL, &spec->unpriv);
+			err = push_msg(msg, NULL, &spec->unpriv.expect_msgs);
 			if (err)
 				goto cleanup;
 			spec->mode_mask |= UNPRIV;
 		} else if (str_has_pfx(s, TEST_TAG_EXPECT_REGEX_PFX)) {
 			msg = s + sizeof(TEST_TAG_EXPECT_REGEX_PFX) - 1;
-			err = push_msg(NULL, msg, &spec->priv);
+			err = push_msg(NULL, msg, &spec->priv.expect_msgs);
 			if (err)
 				goto cleanup;
 			spec->mode_mask |= PRIV;
 		} else if (str_has_pfx(s, TEST_TAG_EXPECT_REGEX_PFX_UNPRIV)) {
 			msg = s + sizeof(TEST_TAG_EXPECT_REGEX_PFX_UNPRIV) - 1;
-			err = push_msg(NULL, msg, &spec->unpriv);
+			err = push_msg(NULL, msg, &spec->unpriv.expect_msgs);
 			if (err)
 				goto cleanup;
 			spec->mode_mask |= UNPRIV;
@@ -387,11 +392,12 @@  static int parse_test_spec(struct test_loader *tester,
 			spec->unpriv.execute = spec->priv.execute;
 		}
 
-		if (!spec->unpriv.expect_msgs) {
-			for (i = 0; i < spec->priv.expect_msg_cnt; i++) {
-				struct expect_msg *msg = &spec->priv.expect_msgs[i];
+		if (spec->unpriv.expect_msgs.cnt == 0) {
+			for (i = 0; i < spec->priv.expect_msgs.cnt; i++) {
+				struct expect_msg *msg = &spec->priv.expect_msgs.patterns[i];
 
-				err = push_msg(msg->substr, msg->regex_str, &spec->unpriv);
+				err = push_msg(msg->substr, msg->regex_str,
+					       &spec->unpriv.expect_msgs);
 				if (err)
 					goto cleanup;
 			}
@@ -443,18 +449,14 @@  static void emit_verifier_log(const char *log_buf, bool force)
 	fprintf(stdout, "VERIFIER LOG:\n=============\n%s=============\n", log_buf);
 }
 
-static void validate_case(struct test_loader *tester,
-			  struct test_subspec *subspec,
-			  struct bpf_object *obj,
-			  struct bpf_program *prog,
-			  int load_err)
+static void validate_msgs(char *log_buf, struct expected_msgs *msgs)
 {
 	regmatch_t reg_match[1];
-	const char *log = tester->log_buf;
+	const char *log = log_buf;
 	int i, j, err;
 
-	for (i = 0; i < subspec->expect_msg_cnt; i++) {
-		struct expect_msg *msg = &subspec->expect_msgs[i];
+	for (i = 0; i < msgs->cnt; i++) {
+		struct expect_msg *msg = &msgs->patterns[i];
 		const char *match = NULL;
 
 		if (msg->substr) {
@@ -471,9 +473,9 @@  static void validate_case(struct test_loader *tester,
 
 		if (!ASSERT_OK_PTR(match, "expect_msg")) {
 			if (env.verbosity == VERBOSE_NONE)
-				emit_verifier_log(tester->log_buf, true /*force*/);
+				emit_verifier_log(log_buf, true /*force*/);
 			for (j = 0; j <= i; j++) {
-				msg = &subspec->expect_msgs[j];
+				msg = &msgs->patterns[j];
 				fprintf(stderr, "%s %s: '%s'\n",
 					j < i ? "MATCHED " : "EXPECTED",
 					msg->substr ? "SUBSTR" : " REGEX",
@@ -692,9 +694,8 @@  void run_subtest(struct test_loader *tester,
 			goto tobj_cleanup;
 		}
 	}
-
 	emit_verifier_log(tester->log_buf, false /*force*/);
-	validate_case(tester, subspec, tobj, tprog, err);
+	validate_msgs(tester->log_buf, &subspec->expect_msgs);
 
 	if (should_do_test_run(spec, subspec)) {
 		/* For some reason test_verifier executes programs