blob: 487e3031325ec34b91daee28a9cc4cebb9c2ee17 (
plain)
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
|
// RUN: %clangxx_xray -g -std=c++11 %s -o %t -fxray-modes=xray-fdr
// RUN: rm -f fdr-inmemory-test-*
// RUN: XRAY_OPTIONS="patch_premain=false xray_logfile_base=fdr-inmemory-test- \
// RUN: verbosity=1" \
// RUN: XRAY_FDR_OPTIONS="no_file_flush=true func_duration_threshold_us=0" \
// RUN: %run %t 2>&1 | FileCheck %s
// RUN: FILES=`find %T -name 'fdr-inmemory-test-*' | wc -l`
// RUN: [ $FILES -eq 0 ]
// RUN: rm -f fdr-inmemory-test-*
//
// REQUIRES: x86_64-target-arch
// REQUIRES: built-in-llvm-tree
#include "xray/xray_log_interface.h"
#include <cassert>
#include <iostream>
uint64_t var = 0;
uint64_t buffers = 0;
[[clang::xray_always_instrument]] void __attribute__((noinline)) f() { ++var; }
int main(int argc, char *argv[]) {
assert(__xray_log_select_mode("xray-fdr") ==
XRayLogRegisterStatus::XRAY_REGISTRATION_OK);
auto status = __xray_log_init_mode(
"xray-fdr",
"buffer_size=4096:buffer_max=10:func_duration_threshold_us=0");
assert(status == XRayLogInitStatus::XRAY_LOG_INITIALIZED);
__xray_patch();
// Create enough entries.
for (int i = 0; i != 1 << 20; ++i) {
f();
}
// Then we want to verify that we're getting 10 buffers outside of the initial
// header.
auto finalize_status = __xray_log_finalize();
assert(finalize_status == XRayLogInitStatus::XRAY_LOG_FINALIZED);
auto process_status =
__xray_log_process_buffers([](const char *, XRayBuffer) { ++buffers; });
std::cout << "buffers = " << buffers << std::endl;
assert(process_status == XRayLogFlushStatus::XRAY_LOG_FLUSHED);
auto flush_status = __xray_log_flushLog();
assert(flush_status == XRayLogFlushStatus::XRAY_LOG_FLUSHED);
// We expect 11 buffers because 1 header buffer + 10 actual FDR buffers.
// CHECK: Buffers = 11
std::cout << "Buffers = " << buffers << std::endl;
// In this test we ensure that we can restart the cycle after the flush.
status = __xray_log_init_mode(
"xray-fdr",
"buffer_size=4096:buffer_max=10:func_duration_threshold_us=0");
assert(status == XRayLogInitStatus::XRAY_LOG_INITIALIZED);
__xray_patch();
// Create enough entries.
for (int i = 0; i != 1 << 20; ++i) {
f();
}
// Then we want to verify that we're getting 10 buffers outside of the initial
// header.
finalize_status = __xray_log_finalize();
assert(finalize_status == XRayLogInitStatus::XRAY_LOG_FINALIZED);
process_status =
__xray_log_process_buffers([](const char *, XRayBuffer) { ++buffers; });
std::cout << "buffers = " << buffers << std::endl;
assert(process_status == XRayLogFlushStatus::XRAY_LOG_FLUSHED);
flush_status = __xray_log_flushLog();
assert(flush_status == XRayLogFlushStatus::XRAY_LOG_FLUSHED);
// We expect 22 buffers because 1 header buffer + 10 actual FDR buffers, plus
// the number of buffers we got from the previous run (also 11).
// CHECK: Buffers = 22
std::cout << "Buffers = " << buffers << std::endl;
}
|
