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// 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;
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 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);
}
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