1// RUN: rm -rf %t && mkdir %t
2// RUN: %clangxx_xray -g -std=c++11 %s -o %t.exe
3// RUN: XRAY_OPTIONS="patch_premain=false \
4// RUN: xray_logfile_base=%t/ xray_mode=xray-fdr verbosity=1" \
5// RUN: XRAY_FDR_OPTIONS=func_duration_threshold_us=0 %run %t.exe 2>&1 | \
6// RUN: FileCheck %s
7// RUN: %llvm_xray convert --symbolize --output-format=yaml -instr_map=%t.exe %t/*
8// RUN: %llvm_xray convert --symbolize --output-format=yaml -instr_map=%t.exe %t/* | \
9// RUN: FileCheck %s --check-prefix TRACE
10
11// REQUIRES: target={{(aarch64|loongarch64|x86_64)-.*}}
12// REQUIRES: built-in-llvm-tree
13
14#include "xray/xray_log_interface.h"
15#include <atomic>
16#include <cassert>
17#include <thread>
18
19std::atomic<uint64_t> var{0};
20
21[[clang::xray_always_instrument]] void __attribute__((noinline)) f1() {
22 for (auto i = 0; i < 1 << 20; ++i)
23 ++var;
24}
25
26[[clang::xray_always_instrument]] void __attribute__((noinline)) f2() {
27 for (auto i = 0; i < 1 << 20; ++i)
28 ++var;
29}
30
31int main(int argc, char *argv[]) {
32 __xray_patch();
33 assert(__xray_log_init_mode("xray-fdr", "") ==
34 XRayLogInitStatus::XRAY_LOG_INITIALIZED);
35
36 std::atomic_thread_fence(m: std::memory_order_acq_rel);
37
38 {
39 std::thread t1([] { f1(); });
40 std::thread t2([] { f2(); });
41 t1.join();
42 t2.join();
43 }
44
45 std::atomic_thread_fence(m: std::memory_order_acq_rel);
46 __xray_log_finalize();
47 __xray_log_flushLog();
48 __xray_unpatch();
49 return var > 0 ? 0 : 1;
50 // CHECK: {{.*}}XRay: Log file in '{{.*}}'
51 // CHECK-NOT: Failed
52}
53
54// We want to make sure that the order of the function log doesn't matter.
55// 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]+}}, data: '' }
56// TRACE-DAG: - { type: 0, func-id: [[FID2:[0-9]+]], function: {{.*f2.*}}, cpu: {{.*}}, thread: [[THREAD2:[0-9]+]], process: [[PROCESS]], kind: function-enter, tsc: {{[0-9]+}}, data: '' }
57// TRACE-DAG: - { type: 0, func-id: [[FID1]], function: {{.*f1.*}}, cpu: {{.*}}, thread: [[THREAD1]], process: [[PROCESS]], kind: {{function-exit|function-tail-exit}}, tsc: {{[0-9]+}}, data: '' }
58// TRACE-DAG: - { type: 0, func-id: [[FID2]], function: {{.*f2.*}}, cpu: {{.*}}, thread: [[THREAD2]], process: [[PROCESS]], kind: {{function-exit|function-tail-exit}}, tsc: {{[0-9]+}}, data: '' }
59

source code of compiler-rt/test/xray/TestCases/Posix/fdr-thread-order.cpp