1 // Check that we can get a profile from a single-threaded application, on 2 // 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-profiling 6 // RUN: rm -f xray-log.profiling-multi-* 7 // RUN: XRAY_OPTIONS=verbosity=1 \ 8 // RUN: XRAY_PROFILING_OPTIONS=no_flush=1 %run %t 9 // RUN: XRAY_OPTIONS=verbosity=1 %run %t 10 // RUN: PROFILES=`ls xray-log.profiling-multi-* | wc -l` 11 // RUN: [ $PROFILES -eq 1 ] 12 // RUN: rm -f xray-log.profiling-multi-* 13 // 14 // REQUIRES: x86_64-target-arch 15 // REQUIRES: built-in-llvm-tree 16 17 #include "xray/xray_interface.h" 18 #include "xray/xray_log_interface.h" 19 #include <cassert> 20 #include <cstdio> 21 #include <string> 22 #include <thread> 23 f2()24[[clang::xray_always_instrument]] void f2() { return; } f1()25[[clang::xray_always_instrument]] void f1() { f2(); } f0()26[[clang::xray_always_instrument]] void f0() { f1(); } 27 28 using namespace std; 29 30 volatile int buffer_counter = 0; 31 process_buffer(const char *,XRayBuffer)32[[clang::xray_never_instrument]] void process_buffer(const char *, XRayBuffer) { 33 // FIXME: Actually assert the contents of the buffer. 34 ++buffer_counter; 35 } 36 main(int,char **)37[[clang::xray_always_instrument]] int main(int, char **) { 38 assert(__xray_log_select_mode("xray-profiling") == 39 XRayLogRegisterStatus::XRAY_REGISTRATION_OK); 40 assert(__xray_log_get_current_mode() != nullptr); 41 std::string current_mode = __xray_log_get_current_mode(); 42 assert(current_mode == "xray-profiling"); 43 assert(__xray_patch() == XRayPatchingStatus::SUCCESS); 44 assert(__xray_log_init_mode("xray-profiling", "") == 45 XRayLogInitStatus::XRAY_LOG_INITIALIZED); 46 std::thread t0([] { f0(); }); 47 std::thread t1([] { f0(); }); 48 f0(); 49 t0.join(); 50 t1.join(); 51 assert(__xray_log_finalize() == XRayLogInitStatus::XRAY_LOG_FINALIZED); 52 assert(__xray_log_process_buffers(process_buffer) == 53 XRayLogFlushStatus::XRAY_LOG_FLUSHED); 54 // We're running three threads, so we expect four buffers (including the file 55 // header buffer). 56 assert(buffer_counter == 4); 57 assert(__xray_log_flushLog() == XRayLogFlushStatus::XRAY_LOG_FLUSHED); 58 } 59