* [PATCH 1/3] libtracefs: Add support for pkg-config
2020-11-26 7:27 [PATCH 0/3] libtracefs install and test fixes Tzvetomir Stoyanov (VMware)
@ 2020-11-26 7:27 ` Tzvetomir Stoyanov (VMware)
2020-11-26 7:27 ` [PATCH 2/3] libtracefs: Add unit tests Tzvetomir Stoyanov (VMware)
2020-11-26 7:27 ` [PATCH 3/3] libtracefs: Do not install library in a subfolder Tzvetomir Stoyanov (VMware)
2 siblings, 0 replies; 4+ messages in thread
From: Tzvetomir Stoyanov (VMware) @ 2020-11-26 7:27 UTC (permalink / raw)
To: rostedt; +Cc: linux-trace-devel
From: Tzvetomir (VMware) Stoyanov <tz.stoyanov@gmail.com>
The pkg-config file is used by the library users to check if the
library is installed on the system and get required CFLAGS and LDFLAGS
in order to use it.
Signed-off-by: Tzvetomir (VMware) Stoyanov <tz.stoyanov@gmail.com>
---
Makefile | 35 ++++++++++++++++++++++++++++++++---
libtracefs.pc.template | 10 ++++++++++
2 files changed, 42 insertions(+), 3 deletions(-)
create mode 100644 libtracefs.pc.template
diff --git a/Makefile b/Makefile
index 468f908..dc7deb1 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,3 @@
-# SPDX-License-Identifier: LGPL-2.1
# libtracefs version
TFS_VERSION = 0
TFS_PATCHLEVEL = 1
@@ -27,6 +26,7 @@ endef
# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
$(call allow-override,CC,$(CROSS_COMPILE)gcc)
$(call allow-override,AR,$(CROSS_COMPILE)ar)
+$(call allow-override,PKG_CONFIG,pkg-config)
EXT = -std=gnu99
INSTALL = install
@@ -47,6 +47,11 @@ libdir ?= $(prefix)/lib
libdir_SQ = '$(subst ','\'',$(libdir))'
includedir = $(prefix)/include
includedir_SQ = '$(subst ','\'',$(includedir))'
+pkgconfig_dir ?= $(word 1,$(shell $(PKG_CONFIG) \
+ --variable pc_path pkg-config | tr ":" " "))
+
+PKG_CONFIG_SOURCE_FILE = libtracefs.pc
+PKG_CONFIG_FILE := $(addprefix $(OUTPUT),$(PKG_CONFIG_SOURCE_FILE))
ifeq ($(prefix),/usr/local)
etcdir ?= /etc
@@ -157,7 +162,7 @@ LIB_INSTALL := $(addprefix $(bdir)/,$(LIB_INSTALL))
TARGETS = $(LIBTRACEFS_SHARED) $(LIBTRACEFS_STATIC)
-all_cmd: $(TARGETS)
+all_cmd: $(TARGETS) $(PKG_CONFIG_FILE)
libtracefs.a: $(LIBTRACEFS_STATIC)
libtracefs.so: $(LIBTRACEFS_SHARED)
@@ -175,6 +180,25 @@ define find_tag_files
! -name '\.#' -print
endef
+define do_make_pkgconfig_file
+ cp -f ${PKG_CONFIG_SOURCE_FILE}.template ${PKG_CONFIG_FILE}; \
+ sed -i "s|INSTALL_PREFIX|${1}|g" ${PKG_CONFIG_FILE}; \
+ sed -i "s|LIB_VERSION|${TRACEFS_VERSION}|g" ${PKG_CONFIG_FILE}; \
+ sed -i "s|LIB_DIR|${libdir}|g" ${PKG_CONFIG_FILE}; \
+ sed -i "s|HEADER_DIR|$(includedir)|g" ${PKG_CONFIG_FILE};
+endef
+
+$(PKG_CONFIG_FILE) : ${PKG_CONFIG_SOURCE_FILE}.template
+ $(Q) $(call do_make_pkgconfig_file,$(prefix))
+
+define do_install_pkgconfig_file
+ if [ -n "${pkgconfig_dir}" ]; then \
+ $(call do_install,$(PKG_CONFIG_FILE),$(pkgconfig_dir),644); \
+ else \
+ (echo Failed to locate pkg-config directory) 1>&2; \
+ fi
+endef
+
tags: force
$(RM) tags
$(call find_tag_files) | xargs ctags --extra=+f --c-kinds=+px
@@ -187,7 +211,7 @@ cscope: force
$(RM) cscope*
$(call find_tag_files) | cscope -b -q
-install_libs: libs
+install_libs: libs install_pkgconfig
$(Q)$(call do_install,$(LIBTRACEFS_SHARED),$(libdir_SQ)/tracefs); \
cp -fpR $(LIB_INSTALL) $(DESTDIR)$(libdir_SQ)/tracefs
$(Q)$(call do_install,$(src)/include/tracefs.h,$(includedir_SQ)/tracefs)
@@ -195,6 +219,10 @@ install_libs: libs
install: install_libs
+install_pkgconfig: $(PKG_CONFIG_FILE)
+ $(Q)$(call , $(PKG_CONFIG_FILE)) \
+ $(call do_install_pkgconfig_file,$(prefix))
+
doc:
$(MAKE) -C $(src)/Documentation all
doc_gui:
@@ -262,5 +290,6 @@ endif
clean:
$(RM) $(TARGETS) $(bdir)/*.a $(bdir)/*.so $(bdir)/*.o $(bdir)/.*.d
+ $(RM) $(PKG_CONFIG_FILE)
.PHONY: clean
diff --git a/libtracefs.pc.template b/libtracefs.pc.template
new file mode 100644
index 0000000..5e7d54a
--- /dev/null
+++ b/libtracefs.pc.template
@@ -0,0 +1,10 @@
+prefix=INSTALL_PREFIX
+libdir=LIB_DIR
+includedir=HEADER_DIR
+
+Name: libtracefs
+URL: https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/
+Description: Library for accessing ftrace file system
+Version: LIB_VERSION
+Cflags: -I${includedir}
+Libs: -L${libdir} -ltracefs
--
2.28.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH 2/3] libtracefs: Add unit tests
2020-11-26 7:27 [PATCH 0/3] libtracefs install and test fixes Tzvetomir Stoyanov (VMware)
2020-11-26 7:27 ` [PATCH 1/3] libtracefs: Add support for pkg-config Tzvetomir Stoyanov (VMware)
@ 2020-11-26 7:27 ` Tzvetomir Stoyanov (VMware)
2020-11-26 7:27 ` [PATCH 3/3] libtracefs: Do not install library in a subfolder Tzvetomir Stoyanov (VMware)
2 siblings, 0 replies; 4+ messages in thread
From: Tzvetomir Stoyanov (VMware) @ 2020-11-26 7:27 UTC (permalink / raw)
To: rostedt; +Cc: linux-trace-devel
From: Tzvetomir (VMware) Stoyanov <tz.stoyanov@gmail.com>
The CUnit test infrastructure is integrated in libtracefs.
http://cunit.sourceforge.net/
The library and its headers must be installed on the machine, in order
to build the libtracefs unit tests. For Fedora, these packages must be installed:
CUnit, CUnit-devel
A new directory is added:
utest
containing unit tests implementation.
Added new target to the top Makefile:
make test
which builds the unit test binary:
utest/trace-utest
Signed-off-by: Tzvetomir (VMware) Stoyanov <tz.stoyanov@gmail.com>
---
Makefile | 3 +-
utest/Makefile | 42 +++
utest/README | 15 ++
utest/trace-utest.c | 83 ++++++
utest/trace-utest.h | 11 +
utest/tracefs-utest.c | 588 ++++++++++++++++++++++++++++++++++++++++++
6 files changed, 741 insertions(+), 1 deletion(-)
create mode 100644 utest/Makefile
create mode 100644 utest/README
create mode 100644 utest/trace-utest.c
create mode 100644 utest/trace-utest.h
create mode 100644 utest/tracefs-utest.c
diff --git a/Makefile b/Makefile
index dc7deb1..b464401 100644
--- a/Makefile
+++ b/Makefile
@@ -125,7 +125,7 @@ LIBTRACEFS_SHARED = $(LIBTRACEFS_DIR)/libtracefs.so.$(TRACEFS_VERSION)
TRACE_LIBS = -L$(LIBTRACEFS_DIR) -ltracefs
export LIBS TRACE_LIBS
-export LIBTRACEFS_STATIC LIBTRACEFS_SHARED
+export LIBTRACEFS_STATIC LIBTRACEFS_SHARED LIBTRACEFS_DIR
export Q SILENT VERBOSE EXT
@@ -289,6 +289,7 @@ ifneq ($(dep_includes),)
endif
clean:
+ $(MAKE) -C $(src)/utest clean
$(RM) $(TARGETS) $(bdir)/*.a $(bdir)/*.so $(bdir)/*.o $(bdir)/.*.d
$(RM) $(PKG_CONFIG_FILE)
diff --git a/utest/Makefile b/utest/Makefile
new file mode 100644
index 0000000..a26d7a9
--- /dev/null
+++ b/utest/Makefile
@@ -0,0 +1,42 @@
+
+include $(src)/scripts/utils.mk
+
+bdir:=$(obj)/utest
+
+TARGETS = $(bdir)/trace-utest
+
+OBJS =
+OBJS += trace-utest.o
+OBJS += tracefs-utest.o
+
+LIBS += -lcunit \
+ -ldl \
+ -L$(LIBTRACEFS_DIR) -ltracefs
+
+OBJS := $(OBJS:%.o=$(bdir)/%.o)
+DEPS := $(OBJS:$(bdir)/%.o=$(bdir)/.%.d)
+
+$(bdir):
+ @mkdir -p $(bdir)
+
+$(OBJS): | $(bdir)
+$(DEPS): | $(bdir)
+
+$(bdir)/trace-utest: $(OBJS)
+ $(Q)$(do_app_build)
+
+$(bdir)/%.o: %.c
+ $(Q)$(call do_fpic_compile)
+
+$(DEPS): $(bdir)/.%.d: %.c
+ $(Q)$(CC) -M $(CPPFLAGS) $(CFLAGS) $< > $@
+ $(Q)$(CC) -M -MT $(bdir)/$*.o $(CPPFLAGS) $(CFLAGS) $< > $@
+
+$(OBJS): $(bdir)/%.o : $(bdir)/.%.d
+
+dep_includes := $(wildcard $(DEPS))
+
+test: $(TARGETS)
+
+clean:
+ $(RM) $(TARGETS) $(bdir)/*.o $(bdir)/.*.d
diff --git a/utest/README b/utest/README
new file mode 100644
index 0000000..ed92042
--- /dev/null
+++ b/utest/README
@@ -0,0 +1,15 @@
+
+Unit tests for tracefs library. The tests use CUnit framework:
+ http://cunit.sourceforge.net/
+which must be pre installed on the system, before building the unit tests.
+The framework can be downloaded, compiled and installed manually, or
+using a precompiled distro package:
+
+ Fedora:
+ CUnit
+ CUnit-devel
+
+ Ubuntu and Debian:
+ libcunit1
+ libcunit1-doc
+ libcunit1-dev
diff --git a/utest/trace-utest.c b/utest/trace-utest.c
new file mode 100644
index 0000000..58d4d4e
--- /dev/null
+++ b/utest/trace-utest.c
@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: LGPL-2.1
+/*
+ * Copyright (C) 2020, VMware, Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
+ *
+ */
+#include <stdio.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <stdlib.h>
+
+#include <CUnit/CUnit.h>
+#include <CUnit/Basic.h>
+
+#include "trace-utest.h"
+
+enum unit_tests {
+ RUN_NONE = 0,
+ RUN_TRACEFS = (1 << 0),
+ RUN_ALL = 0xFFFF
+};
+
+static void print_help(char **argv)
+{
+ printf("Usage: %s [OPTIONS]\n", basename(argv[0]));
+ printf("\t-s, --silent\tPrint test summary\n");
+ printf("\t-r, --run test\tRun specific test:\n");
+ printf("\t\t tracefs run libtracefs tests\n");
+ printf("\t-h, --help\tPrint usage information\n");
+ exit(0);
+}
+
+int main(int argc, char **argv)
+{
+ CU_BasicRunMode verbose = CU_BRM_VERBOSE;
+ enum unit_tests tests = RUN_NONE;
+
+ for (;;) {
+ int c;
+ int index = 0;
+ const char *opts = "+hsr:";
+ static struct option long_options[] = {
+ {"silent", no_argument, NULL, 's'},
+ {"run", required_argument, NULL, 'r'},
+ {"help", no_argument, NULL, 'h'},
+ {NULL, 0, NULL, 0}
+ };
+
+ c = getopt_long (argc, argv, opts, long_options, &index);
+ if (c == -1)
+ break;
+ switch (c) {
+ case 'r':
+ if (strcmp(optarg, "tracefs") == 0)
+ tests |= RUN_TRACEFS;
+ else
+ print_help(argv);
+ break;
+ case 's':
+ verbose = CU_BRM_SILENT;
+ break;
+ case 'h':
+ default:
+ print_help(argv);
+ break;
+ }
+ }
+
+ if (tests == RUN_NONE)
+ tests = RUN_ALL;
+
+ if (CU_initialize_registry() != CUE_SUCCESS) {
+ printf("Test registry cannot be initialized\n");
+ return -1;
+ }
+
+ if (tests & RUN_TRACEFS)
+ test_tracefs_lib();
+
+ CU_basic_set_mode(verbose);
+ CU_basic_run_tests();
+ CU_cleanup_registry();
+ return 0;
+}
diff --git a/utest/trace-utest.h b/utest/trace-utest.h
new file mode 100644
index 0000000..917c0e7
--- /dev/null
+++ b/utest/trace-utest.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: LGPL-2.1 */
+/*
+ * Copyright (C) 2020, VMware, Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
+ *
+ */
+#ifndef _TRACE_UTEST_H_
+#define _TRACE_UTEST_H_
+
+void test_tracefs_lib(void);
+
+#endif /* _TRACE_UTEST_H_ */
diff --git a/utest/tracefs-utest.c b/utest/tracefs-utest.c
new file mode 100644
index 0000000..24ea0fc
--- /dev/null
+++ b/utest/tracefs-utest.c
@@ -0,0 +1,588 @@
+// SPDX-License-Identifier: LGPL-2.1
+/*
+ * Copyright (C) 2020, VMware, Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
+ *
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <time.h>
+#include <dirent.h>
+
+#include <CUnit/CUnit.h>
+#include <CUnit/Basic.h>
+
+#include "tracefs.h"
+
+#define TRACEFS_SUITE "trasefs library"
+#define TEST_INSTANCE_NAME "cunit_test_iter"
+#define TEST_ARRAY_SIZE 50
+
+static struct tracefs_instance *test_instance;
+static struct tep_handle *test_tep;
+static int test_array[TEST_ARRAY_SIZE];
+static int test_found;
+
+static int test_callback(struct tep_event *event, struct tep_record *record,
+ int cpu, void *context)
+{
+ struct tep_format_field *field;
+ int val, i;
+
+ field = tep_find_field(event, "buf");
+ if (field) {
+ val = *((int *)(record->data + field->offset));
+ for (i = 0; i < TEST_ARRAY_SIZE; i++) {
+ if (test_array[i] == val) {
+ test_array[i] = 0;
+ test_found++;
+ break;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static void test_iter_write(void)
+{
+ char *path;
+ int i, fd;
+ int ret;
+
+ path = tracefs_instance_get_file(test_instance, "trace_marker");
+ CU_TEST(path != NULL);
+ fd = open(path, O_WRONLY);
+ CU_TEST(fd >= 0);
+
+ for (i = 0; i < TEST_ARRAY_SIZE; i++) {
+ test_array[i] = random();
+ ret = write(fd, test_array + i, sizeof(int));
+ CU_TEST(ret == sizeof(int));
+ }
+
+ tracefs_put_tracing_file(path);
+ close(fd);
+}
+
+
+static void test_iter_raw_events(void)
+{
+ int ret;
+
+ ret = tracefs_iterate_raw_events(NULL, test_instance, test_callback, NULL);
+ CU_TEST(ret < 0);
+ ret = tracefs_iterate_raw_events(test_tep, NULL, test_callback, NULL);
+ CU_TEST(ret == 0);
+ ret = tracefs_iterate_raw_events(test_tep, test_instance, NULL, NULL);
+ CU_TEST(ret < 0);
+
+ test_found = 0;
+ test_iter_write();
+ ret = tracefs_iterate_raw_events(test_tep, test_instance,
+ test_callback, NULL);
+ CU_TEST(ret == 0);
+ CU_TEST(test_found == TEST_ARRAY_SIZE);
+}
+
+#define RAND_STR_SIZE 20
+#define RAND_ASCII "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+static const char *get_rand_str(void)
+{
+ static char str[RAND_STR_SIZE];
+ static char sym[] = RAND_ASCII;
+ struct timespec clk;
+ int i;
+
+ clock_gettime(CLOCK_REALTIME, &clk);
+ srand(clk.tv_nsec);
+ for (i = 0; i < RAND_STR_SIZE; i++)
+ str[i] = sym[rand() % (sizeof(sym) - 1)];
+
+ str[RAND_STR_SIZE - 1] = 0;
+ return str;
+}
+
+static void test_trace_file(void)
+{
+ const char *tmp = get_rand_str();
+ const char *tdir;
+ struct stat st;
+ char *file;
+ char *dir;
+
+ dir = tracefs_find_tracing_dir();
+ CU_TEST(dir != NULL);
+ CU_TEST(stat(dir, &st) == 0);
+ CU_TEST(S_ISDIR(st.st_mode));
+
+ tdir = tracefs_get_tracing_dir();
+ CU_TEST(tdir != NULL);
+ CU_TEST(stat(tdir, &st) == 0);
+ CU_TEST(S_ISDIR(st.st_mode));
+
+ CU_TEST(strcmp(dir, tdir) == 0);
+ free(dir);
+
+ file = tracefs_get_tracing_file(NULL);
+ CU_TEST(file == NULL);
+ file = tracefs_get_tracing_file(tmp);
+ CU_TEST(file != NULL);
+ CU_TEST(stat(file, &st) != 0);
+ tracefs_put_tracing_file(file);
+
+ file = tracefs_get_tracing_file("trace");
+ CU_TEST(file != NULL);
+ CU_TEST(stat(file, &st) == 0);
+ tracefs_put_tracing_file(file);
+}
+
+static void test_instance_file_read(struct tracefs_instance *inst, char *fname)
+{
+ const char *tdir = tracefs_get_tracing_dir();
+ char buf[BUFSIZ];
+ char *fpath;
+ char *file;
+ size_t fsize = 0;
+ int size = 0;
+ int fd;
+
+ if (inst) {
+ CU_TEST(asprintf(&fpath, "%s/instances/%s/%s",
+ tdir, tracefs_instance_get_name(inst), fname) > 0);
+ } else {
+ CU_TEST(asprintf(&fpath, "%s/%s", tdir, fname) > 0);
+ }
+
+ memset(buf, 0, BUFSIZ);
+ fd = open(fpath, O_RDONLY);
+ CU_TEST(fd >= 0);
+ fsize = read(fd, buf, BUFSIZ);
+ CU_TEST(fsize >= 0);
+ close(fd);
+ buf[BUFSIZ - 1] = 0;
+
+ file = tracefs_instance_file_read(inst, fname, &size);
+ CU_TEST(file != NULL);
+ CU_TEST(size == fsize);
+ CU_TEST(strcmp(file, buf) == 0);
+
+ free(fpath);
+ free(file);
+}
+
+#define ALL_TRACERS "available_tracers"
+#define CUR_TRACER "current_tracer"
+#define PER_CPU "per_cpu"
+static void test_instance_file(void)
+{
+ struct tracefs_instance *instance = NULL;
+ struct tracefs_instance *second = NULL;
+ const char *name = get_rand_str();
+ const char *inst_name = NULL;
+ const char *tdir;
+ char *inst_file;
+ char *inst_dir;
+ struct stat st;
+ char *fname;
+ char *file1;
+ char *file2;
+ char *tracer;
+ int size;
+ int ret;
+
+ tdir = tracefs_get_tracing_dir();
+ CU_TEST(tdir != NULL);
+ CU_TEST(asprintf(&inst_dir, "%s/instances/%s", tdir, name) > 0);
+ CU_TEST(stat(inst_dir, &st) != 0);
+
+ CU_TEST(tracefs_instance_exists(name) == false);
+ instance = tracefs_instance_create(name);
+ CU_TEST(instance != NULL);
+ CU_TEST(tracefs_instance_is_new(instance));
+ second = tracefs_instance_create(name);
+ CU_TEST(second != NULL);
+ CU_TEST(!tracefs_instance_is_new(second));
+ tracefs_instance_free(second);
+ CU_TEST(tracefs_instance_exists(name) == true);
+ CU_TEST(stat(inst_dir, &st) == 0);
+ CU_TEST(S_ISDIR(st.st_mode));
+ inst_name = tracefs_instance_get_name(instance);
+ CU_TEST(inst_name != NULL);
+ CU_TEST(strcmp(inst_name, name) == 0);
+
+ fname = tracefs_instance_get_dir(NULL);
+ CU_TEST(fname != NULL);
+ CU_TEST(strcmp(fname, tdir) == 0);
+ free(fname);
+
+ fname = tracefs_instance_get_dir(instance);
+ CU_TEST(fname != NULL);
+ CU_TEST(strcmp(fname, inst_dir) == 0);
+ free(fname);
+
+ CU_TEST(asprintf(&fname, "%s/"ALL_TRACERS, tdir) > 0);
+ CU_TEST(fname != NULL);
+ inst_file = tracefs_instance_get_file(NULL, ALL_TRACERS);
+ CU_TEST(inst_file != NULL);
+ CU_TEST(strcmp(fname, inst_file) == 0);
+ tracefs_put_tracing_file(inst_file);
+ free(fname);
+
+ CU_TEST(asprintf(&fname, "%s/instances/%s/"ALL_TRACERS, tdir, name) > 0);
+ CU_TEST(fname != NULL);
+ CU_TEST(stat(fname, &st) == 0);
+ inst_file = tracefs_instance_get_file(instance, ALL_TRACERS);
+ CU_TEST(inst_file != NULL);
+ CU_TEST(strcmp(fname, inst_file) == 0);
+
+ test_instance_file_read(NULL, ALL_TRACERS);
+ test_instance_file_read(instance, ALL_TRACERS);
+
+ file1 = tracefs_instance_file_read(instance, ALL_TRACERS, NULL);
+ CU_TEST(file1 != NULL);
+ tracer = strtok(file1, " ");
+ CU_TEST(tracer != NULL);
+ ret = tracefs_instance_file_write(instance, CUR_TRACER, tracer);
+ CU_TEST(ret == strlen(tracer));
+ file2 = tracefs_instance_file_read(instance, CUR_TRACER, &size);
+ CU_TEST(file2 != NULL);
+ CU_TEST(size >= strlen(tracer));
+ CU_TEST(strncmp(file2, tracer, strlen(tracer)) == 0);
+ free(file1);
+ free(file2);
+
+ tracefs_put_tracing_file(inst_file);
+ free(fname);
+
+ CU_TEST(tracefs_file_exists(NULL, (char *)name) == false);
+ CU_TEST(tracefs_dir_exists(NULL, (char *)name) == false);
+ CU_TEST(tracefs_file_exists(instance, (char *)name) == false);
+ CU_TEST(tracefs_dir_exists(instance, (char *)name) == false);
+
+ CU_TEST(tracefs_file_exists(NULL, CUR_TRACER) == true);
+ CU_TEST(tracefs_dir_exists(NULL, CUR_TRACER) == false);
+ CU_TEST(tracefs_file_exists(instance, CUR_TRACER) == true);
+ CU_TEST(tracefs_dir_exists(instance, CUR_TRACER) == false);
+
+ CU_TEST(tracefs_file_exists(NULL, PER_CPU) == false);
+ CU_TEST(tracefs_dir_exists(NULL, PER_CPU) == true);
+ CU_TEST(tracefs_file_exists(instance, PER_CPU) == false);
+ CU_TEST(tracefs_dir_exists(instance, PER_CPU) == true);
+
+ CU_TEST(tracefs_instance_destroy(NULL) != 0);
+ CU_TEST(tracefs_instance_destroy(instance) == 0);
+ CU_TEST(tracefs_instance_destroy(instance) != 0);
+ tracefs_instance_free(instance);
+ CU_TEST(stat(inst_dir, &st) != 0);
+ free(inst_dir);
+}
+
+static void exclude_string(char **strings, char *name)
+{
+ int i;
+
+ for (i = 0; strings[i]; i++) {
+ if (strcmp(strings[i], name) == 0) {
+ free(strings[i]);
+ strings[i] = strdup("/");
+ return;
+ }
+ }
+}
+
+static void test_check_files(const char *fdir, char **files)
+{
+ struct dirent *dent;
+ DIR *dir;
+ int i;
+
+ dir = opendir(fdir);
+ CU_TEST(dir != NULL);
+
+ while ((dent = readdir(dir)))
+ exclude_string(files, dent->d_name);
+
+ closedir(dir);
+
+ for (i = 0; files[i]; i++)
+ CU_TEST(files[i][0] == '/');
+}
+
+static void test_system_event(void)
+{
+ const char *tdir;
+ char **systems;
+ char **events;
+ char *sdir = NULL;
+
+ tdir = tracefs_get_tracing_dir();
+ CU_TEST(tdir != NULL);
+
+ systems = tracefs_event_systems(tdir);
+ CU_TEST(systems != NULL);
+
+ events = tracefs_system_events(tdir, systems[0]);
+ CU_TEST(events != NULL);
+
+ asprintf(&sdir, "%s/events/%s", tdir, systems[0]);
+ CU_TEST(sdir != NULL);
+ test_check_files(sdir, events);
+ free(sdir);
+ sdir = NULL;
+
+ asprintf(&sdir, "%s/events", tdir);
+ CU_TEST(sdir != NULL);
+ test_check_files(sdir, systems);
+
+ tracefs_list_free(systems);
+ tracefs_list_free(events);
+
+ free(sdir);
+}
+
+static void test_tracers(void)
+{
+ const char *tdir;
+ char **tracers;
+ char *tfile;
+ char *tracer;
+ int i;
+
+ tdir = tracefs_get_tracing_dir();
+ CU_TEST(tdir != NULL);
+
+ tracers = tracefs_tracers(tdir);
+ CU_TEST(tracers != NULL);
+
+ tfile = tracefs_instance_file_read(NULL, ALL_TRACERS, NULL);
+
+ tracer = strtok(tfile, " ");
+ while (tracer) {
+ exclude_string(tracers, tracer);
+ tracer = strtok(NULL, " ");
+ }
+
+ for (i = 0; tracers[i]; i++)
+ CU_TEST(tracers[i][0] == '/');
+
+ tracefs_list_free(tracers);
+ free(tfile);
+}
+
+static void test_check_events(struct tep_handle *tep, char *system, bool exist)
+{
+ struct dirent *dent;
+ char file[PATH_MAX];
+ char buf[1024];
+ char *edir = NULL;
+ const char *tdir;
+ DIR *dir;
+ int fd;
+
+ tdir = tracefs_get_tracing_dir();
+ CU_TEST(tdir != NULL);
+
+ asprintf(&edir, "%s/events/%s", tdir, system);
+ dir = opendir(edir);
+ CU_TEST(dir != NULL);
+
+ while ((dent = readdir(dir))) {
+ if (dent->d_name[0] == '.')
+ continue;
+ sprintf(file, "%s/%s/id", edir, dent->d_name);
+ fd = open(file, O_RDONLY);
+ if (fd < 0)
+ continue;
+ CU_TEST(read(fd, buf, 1024) > 0);
+ if (exist) {
+ CU_TEST(tep_find_event(tep, atoi(buf)) != NULL);
+ } else {
+ CU_TEST(tep_find_event(tep, atoi(buf)) == NULL);
+ }
+
+ close(fd);
+ }
+
+ closedir(dir);
+ free(edir);
+
+}
+
+static void test_local_events(void)
+{
+ struct tep_handle *tep;
+ const char *tdir;
+ char **systems;
+ char *lsystems[3];
+ int i;
+
+ tdir = tracefs_get_tracing_dir();
+ CU_TEST(tdir != NULL);
+
+ tep = tracefs_local_events(tdir);
+ CU_TEST(tep != NULL);
+
+ systems = tracefs_event_systems(tdir);
+ CU_TEST(systems != NULL);
+
+ for (i = 0; systems[i]; i++)
+ test_check_events(tep, systems[i], true);
+ tep_free(tep);
+
+ memset(lsystems, 0, sizeof(lsystems));
+ for (i = 0; systems[i]; i++) {
+ if (!lsystems[0])
+ lsystems[0] = systems[i];
+ else if (!lsystems[2])
+ lsystems[2] = systems[i];
+ else
+ break;
+ }
+
+ if (lsystems[0] && lsystems[2]) {
+ tep = tracefs_local_events_system(tdir,
+ (const char * const *)lsystems);
+ CU_TEST(tep != NULL);
+ test_check_events(tep, lsystems[0], true);
+ test_check_events(tep, lsystems[2], false);
+ }
+ tep_free(tep);
+
+ tep = tep_alloc();
+ CU_TEST(tep != NULL);
+ CU_TEST(tracefs_fill_local_events(tdir, tep, NULL) == 0);
+ for (i = 0; systems[i]; i++)
+ test_check_events(tep, systems[i], true);
+
+ tep_free(tep);
+
+ tracefs_list_free(systems);
+}
+
+struct test_walk_instance {
+ struct tracefs_instance *instance;
+ bool found;
+};
+#define WALK_COUNT 10
+int test_instances_walk_cb(const char *name, void *data)
+{
+ struct test_walk_instance *instances = (struct test_walk_instance *)data;
+ int i;
+
+ CU_TEST(instances != NULL);
+ CU_TEST(name != NULL);
+
+ for (i = 0; i < WALK_COUNT; i++) {
+ if (!strcmp(name,
+ tracefs_instance_get_name(instances[i].instance))) {
+ instances[i].found = true;
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static void test_instances_walk(void)
+{
+ struct test_walk_instance instances[WALK_COUNT];
+ int i;
+
+ memset(instances, 0, WALK_COUNT * sizeof(struct test_walk_instance));
+ for (i = 0; i < WALK_COUNT; i++) {
+ instances[i].instance = tracefs_instance_create(get_rand_str());
+ CU_TEST(instances[i].instance != NULL);
+ }
+
+ CU_TEST(tracefs_instances_walk(test_instances_walk_cb, instances) == 0);
+ for (i = 0; i < WALK_COUNT; i++) {
+ CU_TEST(instances[i].found);
+ tracefs_instance_destroy(instances[i].instance);
+ instances[i].found = false;
+ }
+
+ CU_TEST(tracefs_instances_walk(test_instances_walk_cb, instances) == 0);
+ for (i = 0; i < WALK_COUNT; i++) {
+ CU_TEST(!instances[i].found);
+ tracefs_instance_free(instances[i].instance);
+ }
+}
+
+static void current_clock_check(const char *clock)
+{
+ int size = 0;
+ char *clocks;
+ char *str;
+
+ clocks = tracefs_instance_file_read(test_instance, "trace_clock", &size);
+ CU_TEST(clocks != NULL);
+ CU_TEST(size > strlen(clock));
+ str = strstr(clocks, clock);
+ CU_TEST(str != NULL);
+ CU_TEST(str != clocks);
+ CU_TEST(*(str - 1) == '[');
+ CU_TEST(*(str + strlen(clock)) == ']');
+ free(clocks);
+}
+
+static void test_get_clock(void)
+{
+ const char *clock;
+
+ clock = tracefs_get_clock(test_instance);
+ CU_TEST(clock != NULL);
+ current_clock_check(clock);
+ free((char *)clock);
+}
+
+static int test_suite_destroy(void)
+{
+ tracefs_instance_destroy(test_instance);
+ tracefs_instance_free(test_instance);
+ tep_free(test_tep);
+ return 0;
+}
+
+static int test_suite_init(void)
+{
+ const char *systems[] = {"ftrace", NULL};
+
+ test_tep = tracefs_local_events_system(NULL, systems);
+ if (test_tep == NULL)
+ return 1;
+ test_instance = tracefs_instance_create(TEST_INSTANCE_NAME);
+ if (!test_instance)
+ return 1;
+
+ return 0;
+}
+
+void test_tracefs_lib(void)
+{
+ CU_pSuite suite = NULL;
+
+ suite = CU_add_suite(TRACEFS_SUITE, test_suite_init, test_suite_destroy);
+ if (suite == NULL) {
+ fprintf(stderr, "Suite \"%s\" cannot be ceated\n", TRACEFS_SUITE);
+ return;
+ }
+ CU_add_test(suite, "tracing file / directory APIs",
+ test_trace_file);
+ CU_add_test(suite, "instance file / directory APIs",
+ test_instance_file);
+ CU_add_test(suite, "systems and events APIs",
+ test_system_event);
+ CU_add_test(suite, "tracefs_iterate_raw_events API",
+ test_iter_raw_events);
+ CU_add_test(suite, "tracefs_tracers API",
+ test_tracers);
+ CU_add_test(suite, "tracefs_local events API",
+ test_local_events);
+ CU_add_test(suite, "tracefs_instances_walk API",
+ test_instances_walk);
+ CU_add_test(suite, "tracefs_get_clock API",
+ test_get_clock);
+}
--
2.28.0
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