3bd20d4605
Summary: This change provides access to the file header even in the in-memory buffer processing. This allows in-memory processing of the buffers to also check the version, and the format, of the profile data. Reviewers: eizan, kpw Reviewed By: eizan Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D50037 llvm-svn: 338347
59 lines
2.1 KiB
C++
59 lines
2.1 KiB
C++
// Check that we can get a profile from a single-threaded application, on
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// demand through the XRay logging implementation API.
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//
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// FIXME: Make -fxray-modes=xray-profiling part of the default?
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// RUN: %clangxx_xray -std=c++11 %s -o %t -fxray-modes=xray-profiling
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// RUN: rm -f xray-log.profiling-multi-*
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// RUN: XRAY_OPTIONS=verbosity=1 \
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// RUN: XRAY_PROFILING_OPTIONS=no_flush=1 %run %t
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// RUN: XRAY_OPTIONS=verbosity=1 %run %t
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// RUN: PROFILES=`ls xray-log.profiling-multi-* | wc -l`
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// RUN: [ $PROFILES -eq 1 ]
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// RUN: rm -f xray-log.profiling-multi-*
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//
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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_interface.h"
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#include "xray/xray_log_interface.h"
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#include <cassert>
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#include <cstdio>
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#include <string>
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#include <thread>
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[[clang::xray_always_instrument]] void f2() { return; }
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[[clang::xray_always_instrument]] void f1() { f2(); }
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[[clang::xray_always_instrument]] void f0() { f1(); }
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using namespace std;
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volatile int buffer_counter = 0;
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[[clang::xray_never_instrument]] void process_buffer(const char *, XRayBuffer) {
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// FIXME: Actually assert the contents of the buffer.
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++buffer_counter;
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}
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[[clang::xray_always_instrument]] int main(int, char **) {
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assert(__xray_log_select_mode("xray-profiling") ==
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XRayLogRegisterStatus::XRAY_REGISTRATION_OK);
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assert(__xray_log_get_current_mode() != nullptr);
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std::string current_mode = __xray_log_get_current_mode();
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assert(current_mode == "xray-profiling");
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assert(__xray_patch() == XRayPatchingStatus::SUCCESS);
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assert(__xray_log_init(0, 0, nullptr, 0) ==
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XRayLogInitStatus::XRAY_LOG_INITIALIZED);
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std::thread t0([] { f0(); });
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std::thread t1([] { f0(); });
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f0();
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t0.join();
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t1.join();
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assert(__xray_log_finalize() == XRayLogInitStatus::XRAY_LOG_FINALIZED);
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assert(__xray_log_process_buffers(process_buffer) ==
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XRayLogFlushStatus::XRAY_LOG_FLUSHED);
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// We're running three threads, so we expect four buffers (including the file
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// header buffer).
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assert(buffer_counter == 4);
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assert(__xray_log_flushLog() == XRayLogFlushStatus::XRAY_LOG_FLUSHED);
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}
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