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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;
#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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