| // RUN: %clangxx_xray -g -std=c++11 %s -o %t |
| // RUN: rm fdr-thread-order.* || true |
| // RUN: XRAY_OPTIONS="patch_premain=false xray_naive_log=false \ |
| // RUN: xray_logfile_base=fdr-thread-order. xray_fdr_log=true verbosity=1 \ |
| // RUN: xray_fdr_log_func_duration_threshold_us=0" %run %t 2>&1 | \ |
| // RUN: FileCheck %s |
| // RUN: %llvm_xray convert --symbolize --output-format=yaml -instr_map=%t \ |
| // RUN: "`ls fdr-thread-order.* | head -1`" |
| // RUN: %llvm_xray convert --symbolize --output-format=yaml -instr_map=%t \ |
| // RUN: "`ls fdr-thread-order.* | head -1`" | \ |
| // RUN: FileCheck %s --check-prefix TRACE |
| // RUN: rm fdr-thread-order.* |
| // FIXME: Make llvm-xray work on non-x86_64 as well. |
| // REQUIRES: x86_64-target-arch |
| // REQUIRES: built-in-llvm-tree |
| |
| #include "xray/xray_log_interface.h" |
| #include <atomic> |
| #include <cassert> |
| #include <thread> |
| |
| constexpr auto kBufferSize = 16384; |
| constexpr auto kBufferMax = 10; |
| |
| std::atomic<uint64_t> var{0}; |
| |
| [[clang::xray_always_instrument]] void __attribute__((noinline)) f1() { |
| for (auto i = 0; i < 1 << 20; ++i) |
| ++var; |
| } |
| |
| [[clang::xray_always_instrument]] void __attribute__((noinline)) f2() { |
| for (auto i = 0; i < 1 << 20; ++i) |
| ++var; |
| } |
| |
| int main(int argc, char *argv[]) { |
| using namespace __xray; |
| FDRLoggingOptions Options; |
| __xray_patch(); |
| assert(__xray_log_init(kBufferSize, kBufferMax, &Options, |
| sizeof(FDRLoggingOptions)) == |
| XRayLogInitStatus::XRAY_LOG_INITIALIZED); |
| |
| std::atomic_thread_fence(std::memory_order_acq_rel); |
| |
| { |
| std::thread t1([] { f1(); }); |
| std::thread t2([] { f2(); }); |
| t1.join(); |
| t2.join(); |
| } |
| |
| std::atomic_thread_fence(std::memory_order_acq_rel); |
| __xray_log_finalize(); |
| __xray_log_flushLog(); |
| __xray_unpatch(); |
| return var > 0 ? 0 : 1; |
| // CHECK: {{.*}}XRay: Log file in '{{.*}}' |
| // CHECK-NOT: Failed |
| } |
| |
| // We want to make sure that the order of the function log doesn't matter. |
| // TRACE-DAG: - { type: 0, func-id: [[FID1:[0-9]+]], function: {{.*f1.*}}, cpu: {{.*}}, thread: [[THREAD1:[0-9]+]], process: [[PROCESS:[0-9]+]], kind: function-enter, tsc: {{[0-9]+}} } |
| // TRACE-DAG: - { type: 0, func-id: [[FID2:[0-9]+]], function: {{.*f2.*}}, cpu: {{.*}}, thread: [[THREAD2:[0-9]+]], process: [[PROCESS]], kind: function-enter, tsc: {{[0-9]+}} } |
| // TRACE-DAG: - { type: 0, func-id: [[FID1]], function: {{.*f1.*}}, cpu: {{.*}}, thread: [[THREAD1]], process: [[PROCESS]], kind: {{function-exit|function-tail-exit}}, tsc: {{[0-9]+}} } |
| // TRACE-DAG: - { type: 0, func-id: [[FID2]], function: {{.*f2.*}}, cpu: {{.*}}, thread: [[THREAD2]], process: [[PROCESS]], kind: {{function-exit|function-tail-exit}}, tsc: {{[0-9]+}} } |