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-rw-r--r--utest/traceevent-utest.c429
1 files changed, 429 insertions, 0 deletions
diff --git a/utest/traceevent-utest.c b/utest/traceevent-utest.c
new file mode 100644
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--- /dev/null
+++ b/utest/traceevent-utest.c
@@ -0,0 +1,429 @@
+// SPDX-License-Identifier: LGPL-2.1
+/*
+ * Copyright (C) 2020, VMware, Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
+ *
+ * Modified from libtracefs to libtraceevent:
+ * Copyright (C) 2021, VMware, Steven Rostedt <rostedt@goodmis.org>
+ *
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <time.h>
+#include <dirent.h>
+#include <ftw.h>
+
+#include <CUnit/CUnit.h>
+#include <CUnit/Basic.h>
+
+#include "event-parse.h"
+#include "trace-seq.h"
+
+#define TRACEEVENT_SUITE "traceevent library"
+
+#define DYN_STR_EVENT_SYSTEM "irq"
+#define DYN_STR_FIELD "name"
+#define DYN_STRING "hello"
+#define DYN_STRING_FMT "irq=0 handler=hello"
+static const char dyn_str_event[] =
+ "name: irq_handler_entry\n"
+ "ID: 1\n"
+ "format:\n"
+ "\tfield:unsigned short common_type;\toffset:0;\tsize:2;\tsigned:0;\n"
+ "\tfield:unsigned char common_flags;\toffset:2;\tsize:1;\tsigned:0;\n"
+ "\tfield:unsigned char common_preempt_count;\toffset:3;\tsize:1;\tsigned:0;\n"
+ "\tfield:int common_pid;\toffset:4;\tsize:4;\tsigned:1;\n"
+ "\n"
+ "\tfield:int irq;\toffset:8;\tsize:4;\tsigned:1;\n"
+ "\tfield:__data_loc char[] name;\toffset:12;\tsize:4;\tsigned:1;\n"
+ "\n"
+ "print fmt: \"irq=%d handler=%s\", REC->irq, __get_str(name)\n";
+
+static char dyn_str_data[] = {
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ /* common type */ 1, 0x00,
+#else
+ /* common type */ 0x00, 1
+#endif
+ /* common flags */ 0x00,
+ /* common_preempt_count */ 0x00,
+ /* common_pid */ 0x00, 0x00, 0x00, 0x00,
+ /* irq */ 0x00, 0x00, 0x00, 0x00,
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ /* name : offset */ 16, 0x00,
+ /* name : length */ 6, 0x00,
+#else
+ /* name : length */ 0x00, 6,
+ /* name : offset */ 0x00, 16,
+#endif
+ /* name */ 'h', 'e', 'l', 'l', 'o', '\0',
+ /* padding */ 0x00, 0x00
+};
+static void *dyn_str_event_data = (void *)dyn_str_data;
+
+static const char dyn_str_old_event[] =
+ "name: irq_handler_entry\n"
+ "ID: 2\n"
+ "format:\n"
+ "\tfield:unsigned short common_type;\toffset:0;\tsize:2;\n"
+ "\tfield:unsigned char common_flags;\toffset:2;\tsize:1;\n"
+ "\tfield:unsigned char common_preempt_count;\toffset:3;\tsize:1;\n"
+ "\tfield:int common_pid;\toffset:4;\tsize:4;\n"
+ "\n"
+ "\tfield:int irq;\toffset:8;\tsize:4;\n"
+ "\tfield:__data_loc name;\toffset:12;\tsize:2;\n"
+ "\n"
+ "print fmt: \"irq=%d handler=%s\", REC->irq, __get_str(name)\n";
+
+static char dyn_str_old_data[] = {
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ /* common type */ 2, 0x00,
+#else
+ /* common type */ 0x00, 2
+#endif
+ /* common flags */ 0x00,
+ /* common_preempt_count */ 0x00,
+ /* common_pid */ 0x00, 0x00, 0x00, 0x00,
+ /* irq */ 0x00, 0x00, 0x00, 0x00,
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ /* name : offset */ 16, 0x00,
+#else
+ /* name : offset */ 0x00, 16,
+#endif
+ /* padding */ 0x00, 0x00,
+ /* name */ 'h', 'e', 'l', 'l', 'o', '\0',
+ /* padding */ 0x00, 0x00, 0x00
+};
+static void *dyn_str_old_event_data = (void *)dyn_str_old_data;
+
+#define CPUMASK_EVENT_SYSTEM "ipi"
+#define CPUMASK_EVENT_FIELD "cpumask"
+static const char cpumask_event_format[] =
+ "name: ipi_send_cpumask\n"
+ "ID: 3\n"
+ "format:\n"
+ "\tfield:unsigned short common_type;\toffset:0;\tsize:2;\n"
+ "\tfield:unsigned char common_flags;\toffset:2;\tsize:1;\n"
+ "\tfield:unsigned char common_preempt_count;\toffset:3;\tsize:1;\n"
+ "\tfield:int common_pid;\toffset:4;\tsize:4;\n"
+ "\n"
+ "\tfield:__data_loc cpumask_t *[] cpumask;\toffset:8;\tsize:4;\tsigned:0;\n"
+ "\n"
+ "print fmt: \"cpumask=%s\", __get_cpumask(cpumask)\n";
+
+/* Mind the endianness! */
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define DECL_CPUMASK_EVENT_DATA(name, args...) \
+ static char cpumask_##name##_event_data[] = { \
+ /* common type */ 3, 0x00, \
+ /* common flags */ 0x00, \
+ /* common_preempt_count */ 0x00, \
+ /* common_pid */ 0x00, 0x00, 0x00, 0x00, \
+ /* [offset, size] */ 16, 0x00, 8, 0x00, \
+ /* padding */ 0x00, 0x00, 0x00, 0x00, \
+ /* cpumask */ args, \
+}
+#else
+#define DECL_CPUMASK_EVENT_DATA(name, args...) \
+static char cpumask_##name##_event_data[] = { \
+ /* common type */ 0x00, 3, \
+ /* common flags */ 0x00, \
+ /* common_preempt_count */ 0x00, \
+ /* common_pid */ 0x00, 0x00, 0x00, 0x00, \
+ /* [offset, size] */ 0x00, 8, 0x00, 16, \
+ /* padding */ 0x00, 0x00, 0x00, 0x00, \
+ /* cpumask */ args, \
+}
+#endif
+
+#define SIZEOF_LONG0_FMT "[FAILED TO PARSE] s4=0 u4=0 s8=0 u8=0x0"
+#define SIZEOF_LONG4_FMT "int=4 unsigned=4 unsigned int=4 long=4 unsigned long=4 long long=8 unsigned long long=8 s4=4 u4=4 s8=8 u8=8"
+#define SIZEOF_LONG8_FMT "int=4 unsigned=4 unsigned int=4 long=8 unsigned long=8 long long=8 unsigned long long=8 s4=4 u4=4 s8=8 u8=8"
+
+static const char size_of_event[] =
+ "name: sizeof_event\n"
+ "ID: 23\n"
+ "format:\n"
+ "\tfield:unsigned short common_type;\toffset:0;\tsize:2;\tsigned:0;\n"
+ "\tfield:unsigned char common_flags;\toffset:2;\tsize:1;\tsigned:0;\n"
+ "\tfield:unsigned char common_preempt_count;\toffset:3;\tsize:1;\tsigned:0;\n"
+ "\tfield:int common_pid;\toffset:4;\tsize:4;\tsigned:1;\n"
+ "\n"
+ "\tfield:int s4;\toffset:8;\tsize:4;\tsigned:1;\n"
+ "\tfield:unsigned int u4;\toffset:12;\tsize:4;\tsigned:0;\n"
+ "\tfield:long long s8;\toffset:16;\tsize:8;\tsigned:1;\n"
+ "\tfield:unsigned long long u8;\toffset:24;\tsize:8;\tsigned:0;\n"
+ "\n"
+ "print fmt: \"int=%d unsigned=%d unsigned int=%d long=%d unsigned long=%d long long=%d unsigned long long=%d s4=%d u4=%d s8=%d u8=%d\", "
+ "sizeof(int), sizeof(unsigned), sizeof(unsigned int), sizeof(long), sizeof(unsigned long), "
+ "sizeof(long long), sizeof(unsigned long long), sizeof(REC->s4), "
+ "sizeof(REC->u4), sizeof(REC->s8), sizeof(REC->u8))\n";
+static char sizeof_data[] = {
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ /* common type */ 23, 0x00,
+#else
+ /* common type */ 0x00, 23
+#endif
+ /* common flags */ 0x00,
+ /* common_preempt_count */ 0x00,
+ /* common_pid */ 0x00, 0x00, 0x00, 0x00,
+ /* irq */ 0x00, 0x00, 0x00, 0x00,
+
+ /* s4 */ 0x00, 0x00, 0x00, 0x00,
+ /* u4 */ 0x00, 0x00, 0x00, 0x00,
+ /* s8 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* u8 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
+static void *sizeof_event_data = (void *)sizeof_data;
+
+DECL_CPUMASK_EVENT_DATA(full, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff);
+#define CPUMASK_FULL "ARRAY[ff, ff, ff, ff, ff, ff, ff, ff]"
+#define CPUMASK_FULL_FMT "cpumask=0-63"
+
+DECL_CPUMASK_EVENT_DATA(empty, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
+#define CPUMASK_EMPTY "ARRAY[00, 00, 00, 00, 00, 00, 00, 00]"
+#define CPUMASK_EMPTY_FMT "cpumask="
+
+DECL_CPUMASK_EVENT_DATA(half, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55);
+#define CPUMASK_HALF "ARRAY[55, 55, 55, 55, 55, 55, 55, 55]"
+#define CPUMASK_HALF_FMT "cpumask=0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62"
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+DECL_CPUMASK_EVENT_DATA(bytep1, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
+#define CPUMASK_BYTEP1 "ARRAY[01, 80, 00, 00, 00, 00, 00, 00]"
+#define CPUMASK_BYTEP1_FMT "cpumask=0,15"
+
+DECL_CPUMASK_EVENT_DATA(bytep2, 0x01, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00);
+#define CPUMASK_BYTEP2 "ARRAY[01, 00, 80, 00, 00, 00, 00, 00]"
+#define CPUMASK_BYTEP2_FMT "cpumask=0,23"
+
+DECL_CPUMASK_EVENT_DATA(bytepn, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80);
+#define CPUMASK_BYTEPN "ARRAY[01, 00, 00, 00, 00, 00, 00, 80]"
+#define CPUMASK_BYTEPN_FMT "cpumask=0,63"
+
+#else
+
+DECL_CPUMASK_EVENT_DATA(bytep1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x01);
+#define CPUMASK_BYTEP1 "ARRAY[00, 00, 00, 00, 00, 00, 80, 01]"
+#define CPUMASK_BYTEP1_FMT "cpumask=0,15"
+
+DECL_CPUMASK_EVENT_DATA(bytep2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x01);
+#define CPUMASK_BYTEP2 "ARRAY[00, 00, 00, 00, 00, 80, 00, 01]"
+#define CPUMASK_BYTEP2_FMT "cpumask=0,23"
+
+DECL_CPUMASK_EVENT_DATA(bytepn, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01);
+#define CPUMASK_BYTEPN "ARRAY[80, 00, 00, 00, 00, 00, 80, 01]"
+#define CPUMASK_BYTEPN_FMT "cpumask=0,63"
+#endif
+
+static struct tep_handle *test_tep;
+static struct trace_seq *test_seq;
+static struct trace_seq seq_storage;
+
+static void parse_dyn_str(const char *dyn_str, void *data, int size)
+{
+ struct tep_format_field *field;
+ struct tep_event *event;
+ struct tep_record record;
+
+ record.data = data;
+ record.size = size;
+
+ CU_TEST(tep_parse_format(test_tep, &event,
+ dyn_str, strlen(dyn_str),
+ DYN_STR_EVENT_SYSTEM) == TEP_ERRNO__SUCCESS);
+
+ field = tep_find_any_field(event, DYN_STR_FIELD);
+ CU_TEST(field != NULL);
+ trace_seq_reset(test_seq);
+ tep_print_field_content(test_seq, data, size, field);
+ CU_TEST(strcmp(test_seq->buffer, DYN_STRING) == 0);
+
+ trace_seq_reset(test_seq);
+ tep_print_event(test_tep, test_seq, &record, "%s", TEP_PRINT_INFO);
+ trace_seq_do_printf(test_seq);
+ CU_TEST(strcmp(test_seq->buffer, DYN_STRING_FMT) == 0);
+}
+
+static void test_parse_dyn_str_event(void)
+{
+ parse_dyn_str(dyn_str_event, dyn_str_event_data, sizeof(dyn_str_data));
+}
+
+static void test_parse_dyn_str_old_event(void)
+{
+ parse_dyn_str(dyn_str_old_event, dyn_str_old_event_data, sizeof(dyn_str_old_data));
+}
+
+static void parse_cpumask(const char *format, void *data, int size,
+ const char* expected_raw, const char* expected)
+{
+ struct tep_format_field *field;
+ struct tep_event *event;
+ struct tep_record record;
+
+ record.data = data;
+ record.size = size;
+
+ CU_TEST(tep_parse_format(test_tep, &event,
+ format, strlen(format),
+ CPUMASK_EVENT_SYSTEM) == TEP_ERRNO__SUCCESS);
+
+ field = tep_find_any_field(event, CPUMASK_EVENT_FIELD);
+ CU_TEST(field != NULL);
+
+ trace_seq_reset(test_seq);
+ tep_print_field_content(test_seq, data, size, field);
+ CU_TEST(strcmp(test_seq->buffer, expected_raw) == 0);
+
+ trace_seq_reset(test_seq);
+ tep_print_event(test_tep, test_seq, &record, "%s", TEP_PRINT_INFO);
+ trace_seq_do_printf(test_seq);
+ CU_TEST(strcmp(test_seq->buffer, expected) == 0);
+}
+
+static void test_parse_cpumask_full(void)
+{
+ parse_cpumask(cpumask_event_format,
+ cpumask_full_event_data, sizeof(cpumask_full_event_data),
+ CPUMASK_FULL, CPUMASK_FULL_FMT);
+}
+
+static void test_parse_cpumask_empty(void)
+{
+ parse_cpumask(cpumask_event_format,
+ cpumask_empty_event_data, sizeof(cpumask_empty_event_data),
+ CPUMASK_EMPTY, CPUMASK_EMPTY_FMT);
+}
+
+static void test_parse_cpumask_half(void)
+{
+ parse_cpumask(cpumask_event_format,
+ cpumask_half_event_data, sizeof(cpumask_half_event_data),
+ CPUMASK_HALF, CPUMASK_HALF_FMT);
+}
+
+static void test_parse_cpumask_bytep1(void)
+{
+ parse_cpumask(cpumask_event_format,
+ cpumask_bytep1_event_data, sizeof(cpumask_bytep1_event_data),
+ CPUMASK_BYTEP1, CPUMASK_BYTEP1_FMT);
+}
+
+static void test_parse_cpumask_bytep2(void)
+{
+ parse_cpumask(cpumask_event_format,
+ cpumask_bytep2_event_data, sizeof(cpumask_bytep2_event_data),
+ CPUMASK_BYTEP2, CPUMASK_BYTEP2_FMT);
+}
+
+static void test_parse_cpumask_bytepn(void)
+{
+ parse_cpumask(cpumask_event_format,
+ cpumask_bytepn_event_data, sizeof(cpumask_bytepn_event_data),
+ CPUMASK_BYTEPN, CPUMASK_BYTEPN_FMT);
+}
+
+static void test_parse_sizeof(int long_size, int value, const char *system,
+ const char *test_str)
+{
+ struct tep_event *event;
+ struct tep_record record;
+ char *sizeof_event;
+ char *p;
+
+ tep_set_long_size(test_tep, long_size);
+
+ record.data = sizeof_event_data;
+ record.size = sizeof(sizeof_data);
+
+ sizeof_event = strdup(size_of_event);
+ CU_TEST(sizeof_event != NULL);
+
+ /* Set a new id */
+ p = strstr(sizeof_event, "ID: 2");
+ p[5] = '0' + value;
+
+ /* Handles endianess */
+ *(unsigned short *)sizeof_data = 20 + value;
+
+ CU_TEST(tep_parse_format(test_tep, &event, sizeof_event,
+ strlen(sizeof_event),
+ system) == TEP_ERRNO__SUCCESS);
+
+ trace_seq_reset(test_seq);
+ tep_print_event(test_tep, test_seq, &record, "%s", TEP_PRINT_INFO);
+ trace_seq_do_printf(test_seq);
+ CU_TEST(strcmp(test_seq->buffer, test_str) == 0);
+
+ free(sizeof_event);
+}
+
+static void test_parse_sizeof8(void)
+{
+ test_parse_sizeof(8, 3, "sizeof8", SIZEOF_LONG8_FMT);
+}
+
+static void test_parse_sizeof4(void)
+{
+ test_parse_sizeof(4, 4, "sizeof4", SIZEOF_LONG4_FMT);
+}
+
+static void test_parse_sizeof_undef(void)
+{
+ test_parse_sizeof(0, 5, "sizeof_undef", SIZEOF_LONG0_FMT);
+}
+
+static int test_suite_destroy(void)
+{
+ tep_free(test_tep);
+ trace_seq_destroy(test_seq);
+ return 0;
+}
+
+static int test_suite_init(void)
+{
+ test_seq = &seq_storage;
+ trace_seq_init(test_seq);
+ test_tep = tep_alloc();
+ if (!test_tep)
+ return 1;
+ return 0;
+}
+
+void test_traceevent_lib(void)
+{
+ CU_pSuite suite = NULL;
+
+ suite = CU_add_suite(TRACEEVENT_SUITE, test_suite_init, test_suite_destroy);
+ if (suite == NULL) {
+ fprintf(stderr, "Suite \"%s\" cannot be ceated\n", TRACEEVENT_SUITE);
+ return;
+ }
+ CU_add_test(suite, "parse dynamic string event",
+ test_parse_dyn_str_event);
+ CU_add_test(suite, "parse old dynamic string event",
+ test_parse_dyn_str_old_event);
+ CU_add_test(suite, "parse full cpumask",
+ test_parse_cpumask_full);
+ CU_add_test(suite, "parse empty cpumask",
+ test_parse_cpumask_empty);
+ CU_add_test(suite, "parse half-filled cpumask",
+ test_parse_cpumask_half);
+ CU_add_test(suite, "parse cpumask spanning 2 bytes",
+ test_parse_cpumask_bytep1);
+ CU_add_test(suite, "parse cpumask spanning 3 bytes",
+ test_parse_cpumask_bytep2);
+ CU_add_test(suite, "parse cpumask spanning all bytes",
+ test_parse_cpumask_bytepn);
+ CU_add_test(suite, "parse sizeof() 8byte values",
+ test_parse_sizeof8);
+ CU_add_test(suite, "parse sizeof() 4byte values",
+ test_parse_sizeof4);
+ CU_add_test(suite, "parse sizeof() no long size defined",
+ test_parse_sizeof_undef);
+}
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