forked from OSchip/llvm-project
112 lines
6.1 KiB
C++
112 lines
6.1 KiB
C++
// RUN: %clangxx_xray -g -std=c++11 %s -o %t
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// RUN: rm -f fdr-logging-test-*
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// RUN: rm -f fdr-unwrite-test-*
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// RUN: XRAY_OPTIONS="patch_premain=false xray_logfile_base=fdr-logging-test- \
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// RUN: xray_mode=xray-fdr verbosity=1" \
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// RUN: XRAY_FDR_OPTIONS="func_duration_threshold_us=0" \
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// RUN: %run %t 2>&1 | FileCheck %s
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// RUN: XRAY_OPTIONS="patch_premain=false \
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// RUN: xray_logfile_base=fdr-unwrite-test- xray_mode=xray-fdr \
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// RUN: verbosity=1" \
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// RUN: XRAY_FDR_OPTIONS="func_duration_threshold_us=5000" \
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// RUN: %run %t 2>&1 | FileCheck %s
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// RUN: %llvm_xray convert --symbolize --output-format=yaml -instr_map=%t \
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// RUN: "`ls fdr-logging-test-* | head -1`" \
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// RUN: | FileCheck %s --check-prefix=TRACE
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// RUN: %llvm_xray convert --symbolize --output-format=yaml -instr_map=%t \
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// RUN: "`ls fdr-unwrite-test-* | head -1`" \
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// RUN: | FileCheck %s --check-prefix=UNWRITE
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// RUN: rm fdr-logging-test-*
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// RUN: rm fdr-unwrite-test-*
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// FIXME: Make llvm-xray work on non-x86_64 as well.
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// REQUIRES: x86_64-target-arch
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// REQUIRES: built-in-llvm-tree
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#include "xray/xray_log_interface.h"
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#include <cassert>
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#include <chrono>
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#include <cstdio>
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#include <iostream>
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#include <stdlib.h>
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#include <thread>
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#include <time.h>
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thread_local uint64_t var = 0;
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[[clang::xray_always_instrument]] void __attribute__((noinline)) fC() { ++var; }
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[[clang::xray_always_instrument]] void __attribute__((noinline)) fB() { fC(); }
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[[clang::xray_always_instrument]] void __attribute__((noinline)) fA() { fB(); }
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[[clang::xray_always_instrument, clang::xray_log_args(1)]]
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void __attribute__((noinline)) fArg(int) { }
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int main(int argc, char *argv[]) {
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std::cout << "Logging before init." << std::endl;
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// CHECK: Logging before init.
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assert(__xray_log_select_mode("xray-fdr") ==
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XRayLogRegisterStatus::XRAY_REGISTRATION_OK);
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auto status =
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__xray_log_init_mode("xray-fdr", "buffer_size=16384:buffer_max=10");
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assert(status == XRayLogInitStatus::XRAY_LOG_INITIALIZED);
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std::cout << "Init status " << status << std::endl;
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// CHECK: Init status {{.*}}
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std::cout << "Patching..." << std::endl;
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// CHECK: Patching...
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__xray_patch();
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fA();
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fC();
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fB();
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fA();
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fC();
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std::thread other_thread([]() {
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fC();
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fB();
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fA();
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fArg(1);
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});
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other_thread.join();
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std::cout << "Joined" << std::endl;
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// CHECK: Joined
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std::cout << "Finalize status " << __xray_log_finalize() << std::endl;
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// CHECK: Finalize status {{.*}}
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fC();
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std::cout << "Main execution var = " << var << std::endl;
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// CHECK: Main execution var = 6
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std::cout << "Flush status " << __xray_log_flushLog() << std::endl;
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// CHECK: Flush status {{.*}}
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__xray_unpatch();
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return 0;
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}
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// Check that we're able to see two threads, each entering and exiting fA().
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// TRACE-DAG: - { type: 0, func-id: [[FIDA:[0-9]+]], function: {{.*fA.*}}, cpu: {{.*}}, thread: [[THREAD1:[0-9]+]], process: [[PROCESS:[0-9]+]], kind: function-enter, tsc: {{[0-9]+}}, data: '' }
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// TRACE: - { type: 0, func-id: [[FIDA]], function: {{.*fA.*}}, cpu: {{.*}}, thread: [[THREAD1]], process: [[PROCESS]], kind: function-{{exit|tail-exit}}, tsc: {{[0-9]+}}, data: '' }
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// TRACE-DAG: - { type: 0, func-id: [[FIDA]], function: {{.*fA.*}}, cpu: {{.*}}, thread: [[THREAD2:[0-9]+]], process: [[PROCESS]], kind: function-enter, tsc: {{[0-9]+}}, data: '' }
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// TRACE: - { type: 0, func-id: [[FIDA]], function: {{.*fA.*}}, cpu: {{.*}}, thread: [[THREAD2]], process: [[PROCESS]], kind: function-{{exit|tail-exit}}, tsc: {{[0-9]+}}, data: '' }
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//
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// Do the same as above for fC()
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// TRACE-DAG: - { type: 0, func-id: [[FIDC:[0-9]+]], function: {{.*fC.*}}, cpu: {{.*}}, thread: [[THREAD1:[0-9]+]], process: [[PROCESS]], kind: function-enter, tsc: {{[0-9]+}}, data: '' }
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// TRACE: - { type: 0, func-id: [[FIDC]], function: {{.*fC.*}}, cpu: {{.*}}, thread: [[THREAD1]], process: [[PROCESS]], kind: function-{{exit|tail-exit}}, tsc: {{[0-9]+}}, data: '' }
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// TRACE-DAG: - { type: 0, func-id: [[FIDC]], function: {{.*fC.*}}, cpu: {{.*}}, thread: [[THREAD2:[0-9]+]], process: [[PROCESS]], kind: function-enter, tsc: {{[0-9]+}}, data: '' }
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// TRACE: - { type: 0, func-id: [[FIDC]], function: {{.*fC.*}}, cpu: {{.*}}, thread: [[THREAD2]], process: [[PROCESS]], kind: function-{{exit|tail-exit}}, tsc: {{[0-9]+}}, data: '' }
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// Do the same as above for fB()
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// TRACE-DAG: - { type: 0, func-id: [[FIDB:[0-9]+]], function: {{.*fB.*}}, cpu: {{.*}}, thread: [[THREAD1:[0-9]+]], process: [[PROCESS]], kind: function-enter, tsc: {{[0-9]+}}, data: '' }
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// TRACE: - { type: 0, func-id: [[FIDB]], function: {{.*fB.*}}, cpu: {{.*}}, thread: [[THREAD1]], process: [[PROCESS]], kind: function-{{exit|tail-exit}}, tsc: {{[0-9]+}}, data: '' }
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// TRACE-DAG: - { type: 0, func-id: [[FIDB]], function: {{.*fB.*}}, cpu: {{.*}}, thread: [[THREAD2:[0-9]+]], process: [[PROCESS]], kind: function-enter, tsc: {{[0-9]+}}, data: '' }
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// TRACE: - { type: 0, func-id: [[FIDB]], function: {{.*fB.*}}, cpu: {{.*}}, thread: [[THREAD2]], process: [[PROCESS]], kind: function-{{exit|tail-exit}}, tsc: {{[0-9]+}}, data: '' }
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// TRACE-DAG: - { type: 0, func-id: [[FIDARG:[0-9]+]], function: 'fArg(int)', args: [ 1 ], cpu: {{.*}}, thread: [[THREAD2]], process: [[PROCESS]], kind: function-enter-arg, tsc: {{[0-9]+}}, data: '' }
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// TRACE-DAG: - { type: 0, func-id: [[FIDARG]], function: 'fArg(int)', cpu: {{.*}}, thread: [[THREAD2]], process: [[PROCESS]], kind: function-exit, tsc: {{[0-9]+}}, data: '' }
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// Assert that when unwriting is enabled with a high threshold time, all the function records are erased. A CPU switch could erroneously fail this test, but
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// is unlikely given the test program.
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// Even with a high threshold, arg1 logging is never unwritten.
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// UNWRITE: header:
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// UNWRITE: records:
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// UNWRITE-NEXT: - { type: 0, func-id: [[FIDARG:[0-9]+]], function: 'fArg(int)', args: [ 1 ], cpu: {{.*}}, thread: [[THREAD2:[0-9]+]], process: [[PROCESS:[0-9]+]], kind: function-enter-arg, tsc: {{[0-9]+}}, data: '' }
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// UNWRITE-NEXT: - { type: 0, func-id: [[FIDARG]], function: 'fArg(int)', cpu: {{.*}}, thread: [[THREAD2]], process: [[PROCESS]], kind: function-exit, tsc: {{[0-9]+}}, data: '' }
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// UNWRITE-NOT: function-enter
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// UNWRITE-NOT: function-{{exit|tail-exit}}
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