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
|
// Check that we can get a profile from a single-threaded application, on
// demand through the XRay logging implementation API.
//
// FIXME: Make -fxray-modes=xray-profiling part of the default?
// RUN: %clangxx_xray -std=c++11 %s -o %t -fxray-modes=xray-profiling
// RUN: rm -f xray-log.profiling-single-*
// RUN: XRAY_OPTIONS=verbosity=1 \
// RUN: XRAY_PROFILING_OPTIONS=no_flush=true %run %t
// RUN: XRAY_OPTIONS=verbosity=1 %run %t
// RUN: PROFILES=`ls xray-log.profiling-single-* | wc -l`
// RUN: [ $PROFILES -eq 2 ]
// RUN: rm -f xray-log.profiling-single-*
//
// REQUIRES: built-in-llvm-tree
#include "xray/xray_interface.h"
#include "xray/xray_log_interface.h"
#include <cassert>
#include <cstdio>
#include <string>
[[clang::xray_always_instrument]] void f2() { return; }
[[clang::xray_always_instrument]] void f1() { f2(); }
[[clang::xray_always_instrument]] void f0() { f1(); }
using namespace std;
volatile int buffer_counter = 0;
[[clang::xray_never_instrument]] void process_buffer(const char *, XRayBuffer) {
// FIXME: Actually assert the contents of the buffer.
++buffer_counter;
}
[[clang::xray_always_instrument]] int main(int, char **) {
assert(__xray_log_select_mode("xray-profiling") ==
XRayLogRegisterStatus::XRAY_REGISTRATION_OK);
assert(__xray_log_get_current_mode() != nullptr);
std::string current_mode = __xray_log_get_current_mode();
assert(current_mode == "xray-profiling");
assert(__xray_patch() == XRayPatchingStatus::SUCCESS);
assert(__xray_log_init_mode("xray-profiling", "") ==
XRayLogInitStatus::XRAY_LOG_INITIALIZED);
f0();
assert(__xray_log_finalize() == XRayLogInitStatus::XRAY_LOG_FINALIZED);
f0();
assert(__xray_log_process_buffers(process_buffer) ==
XRayLogFlushStatus::XRAY_LOG_FLUSHED);
// There's always at least one buffer, containing the profile file header. We
// assert that we have two, to indicate that we're expecting exactly one
// thread's worth of data.
assert(buffer_counter == 2);
assert(__xray_log_flushLog() == XRayLogFlushStatus::XRAY_LOG_FLUSHED);
// Let's reset the counter.
buffer_counter = 0;
assert(__xray_log_init_mode("xray-profiling", "") ==
XRayLogInitStatus::XRAY_LOG_INITIALIZED);
f0();
assert(__xray_log_finalize() == XRayLogInitStatus::XRAY_LOG_FINALIZED);
f0();
assert(__xray_log_process_buffers(process_buffer) ==
XRayLogFlushStatus::XRAY_LOG_FLUSHED);
assert(buffer_counter == 2);
assert(__xray_log_flushLog() == XRayLogFlushStatus::XRAY_LOG_FLUSHED);
}
|
