58 lines · cpp
1// Check that we can get a profile from a single-threaded application, on2// demand through the XRay logging implementation API.3//4// FIXME: Make -fxray-modes=xray-profiling part of the default?5// RUN: %clangxx_xray -std=c++11 %s -o %t -fxray-modes=xray-profiling6// RUN: rm -f xray-log.profiling-multi-*7// RUN: env XRAY_OPTIONS=verbosity=1 \8// RUN: XRAY_PROFILING_OPTIONS=no_flush=1 %run %t9// RUN: env XRAY_OPTIONS=verbosity=1 %run %t10// RUN: ls xray-log.profiling-multi-* | wc -l | tr -d '\n' > %t.profiles11// RUN: %python -c "import sys; sys.exit(int(sys.argv[1]) - 1)" %{readfile:%t.profiles} 12// RUN: rm -f xray-log.profiling-multi-*13//14// REQUIRES: built-in-llvm-tree15 16#include "xray/xray_interface.h"17#include "xray/xray_log_interface.h"18#include <cassert>19#include <cstdio>20#include <string>21#include <thread>22 23[[clang::xray_always_instrument]] void f2() { return; }24[[clang::xray_always_instrument]] void f1() { f2(); }25[[clang::xray_always_instrument]] void f0() { f1(); }26 27using namespace std;28 29volatile int buffer_counter = 0;30 31[[clang::xray_never_instrument]] void process_buffer(const char *, XRayBuffer) {32 // FIXME: Actually assert the contents of the buffer.33 ++buffer_counter;34}35 36[[clang::xray_always_instrument]] int main(int, char **) {37 assert(__xray_log_select_mode("xray-profiling") ==38 XRayLogRegisterStatus::XRAY_REGISTRATION_OK);39 assert(__xray_log_get_current_mode() != nullptr);40 std::string current_mode = __xray_log_get_current_mode();41 assert(current_mode == "xray-profiling");42 assert(__xray_patch() == XRayPatchingStatus::SUCCESS);43 assert(__xray_log_init_mode("xray-profiling", "") ==44 XRayLogInitStatus::XRAY_LOG_INITIALIZED);45 std::thread t0([] { f0(); });46 std::thread t1([] { f0(); });47 f0();48 t0.join();49 t1.join();50 assert(__xray_log_finalize() == XRayLogInitStatus::XRAY_LOG_FINALIZED);51 assert(__xray_log_process_buffers(process_buffer) ==52 XRayLogFlushStatus::XRAY_LOG_FLUSHED);53 // We're running three threads, so we expect four buffers (including the file54 // header buffer).55 assert(buffer_counter == 4);56 assert(__xray_log_flushLog() == XRayLogFlushStatus::XRAY_LOG_FLUSHED);57}58