Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

Open Menu /external/bsd/jemalloc/dist/test/unit/prof_active.c 
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
#include "test/jemalloc_test.h"

static void
mallctl_bool_get(const char *name, bool expected, const char *func, int line) {
	bool old;
	size_t sz;

	sz = sizeof(old);
	assert_d_eq(mallctl(name, (void *)&old, &sz, NULL, 0), 0,
	    "%s():%d: Unexpected mallctl failure reading %s", func, line, name);
	assert_b_eq(old, expected, "%s():%d: Unexpected %s value", func, line,
	    name);
}

static void
mallctl_bool_set(const char *name, bool old_expected, bool val_new,
    const char *func, int line) {
	bool old;
	size_t sz;

	sz = sizeof(old);
	assert_d_eq(mallctl(name, (void *)&old, &sz, (void *)&val_new,
	    sizeof(val_new)), 0,
	    "%s():%d: Unexpected mallctl failure reading/writing %s", func,
	    line, name);
	assert_b_eq(old, old_expected, "%s():%d: Unexpected %s value", func,
	    line, name);
}

static void
mallctl_prof_active_get_impl(bool prof_active_old_expected, const char *func,
    int line) {
	mallctl_bool_get("prof.active", prof_active_old_expected, func, line);
}
#define mallctl_prof_active_get(a)					\
	mallctl_prof_active_get_impl(a, __func__, __LINE__)

static void
mallctl_prof_active_set_impl(bool prof_active_old_expected,
    bool prof_active_new, const char *func, int line) {
	mallctl_bool_set("prof.active", prof_active_old_expected,
	    prof_active_new, func, line);
}
#define mallctl_prof_active_set(a, b)					\
	mallctl_prof_active_set_impl(a, b, __func__, __LINE__)

static void
mallctl_thread_prof_active_get_impl(bool thread_prof_active_old_expected,
    const char *func, int line) {
	mallctl_bool_get("thread.prof.active", thread_prof_active_old_expected,
	    func, line);
}
#define mallctl_thread_prof_active_get(a)				\
	mallctl_thread_prof_active_get_impl(a, __func__, __LINE__)

static void
mallctl_thread_prof_active_set_impl(bool thread_prof_active_old_expected,
    bool thread_prof_active_new, const char *func, int line) {
	mallctl_bool_set("thread.prof.active", thread_prof_active_old_expected,
	    thread_prof_active_new, func, line);
}
#define mallctl_thread_prof_active_set(a, b)				\
	mallctl_thread_prof_active_set_impl(a, b, __func__, __LINE__)

static void
prof_sampling_probe_impl(bool expect_sample, const char *func, int line) {
	void *p;
	size_t expected_backtraces = expect_sample ? 1 : 0;

	assert_zu_eq(prof_bt_count(), 0, "%s():%d: Expected 0 backtraces", func,
	    line);
	p = mallocx(1, 0);
	assert_ptr_not_null(p, "Unexpected mallocx() failure");
	assert_zu_eq(prof_bt_count(), expected_backtraces,
	    "%s():%d: Unexpected backtrace count", func, line);
	dallocx(p, 0);
}
#define prof_sampling_probe(a)						\
	prof_sampling_probe_impl(a, __func__, __LINE__)

TEST_BEGIN(test_prof_active) {
	test_skip_if(!config_prof);

	mallctl_prof_active_get(true);
	mallctl_thread_prof_active_get(false);

	mallctl_prof_active_set(true, true);
	mallctl_thread_prof_active_set(false, false);
	/* prof.active, !thread.prof.active. */
	prof_sampling_probe(false);

	mallctl_prof_active_set(true, false);
	mallctl_thread_prof_active_set(false, false);
	/* !prof.active, !thread.prof.active. */
	prof_sampling_probe(false);

	mallctl_prof_active_set(false, false);
	mallctl_thread_prof_active_set(false, true);
	/* !prof.active, thread.prof.active. */
	prof_sampling_probe(false);

	mallctl_prof_active_set(false, true);
	mallctl_thread_prof_active_set(true, true);
	/* prof.active, thread.prof.active. */
	prof_sampling_probe(true);

	/* Restore settings. */
	mallctl_prof_active_set(true, true);
	mallctl_thread_prof_active_set(true, false);
}
TEST_END

int
main(void) {
	return test_no_reentrancy(
	    test_prof_active);
}