forked from OSchip/llvm-project
96 lines
3.4 KiB
C++
96 lines
3.4 KiB
C++
// Check that we can install an implementation associated with a mode.
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//
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// RUN: rm -f xray-log.logging-modes*
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// RUN: %clangxx_xray -std=c++11 %s -o %t -fxray-modes=none
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// RUN: %run %t | FileCheck %s
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//
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// UNSUPPORTED: target-is-mips64,target-is-mips64el
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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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[[clang::xray_never_instrument]] void printing_handler(int32_t fid,
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XRayEntryType) {
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thread_local volatile bool printing = false;
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if (printing)
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return;
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printing = true;
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std::printf("printing %d\n", fid);
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printing = false;
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}
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[[clang::xray_never_instrument]] XRayBuffer next_buffer(XRayBuffer buffer) {
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static const char data[10] = {};
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static const XRayBuffer first_and_last{data, 10};
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if (buffer.Data == nullptr)
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return first_and_last;
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if (buffer.Data == first_and_last.Data)
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return XRayBuffer{nullptr, 0};
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assert(false && "Invalid buffer provided.");
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}
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static constexpr char Options[] = "additional_flags";
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[[clang::xray_never_instrument]] XRayLogInitStatus
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printing_init(size_t BufferSize, size_t MaxBuffers, void *Config,
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size_t ArgsSize) {
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// We require that the printing init is called through the
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// __xray_log_init_mode(...) implementation, and that the promised contract is
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// enforced.
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assert(BufferSize == 0);
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assert(MaxBuffers == 0);
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assert(Config != nullptr);
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assert(ArgsSize == 0 || ArgsSize == sizeof(Options));
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__xray_log_set_buffer_iterator(next_buffer);
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return XRayLogInitStatus::XRAY_LOG_INITIALIZED;
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}
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[[clang::xray_never_instrument]] XRayLogInitStatus printing_finalize() {
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return XRayLogInitStatus::XRAY_LOG_FINALIZED;
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}
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[[clang::xray_never_instrument]] XRayLogFlushStatus printing_flush_log() {
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__xray_log_remove_buffer_iterator();
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return XRayLogFlushStatus::XRAY_LOG_FLUSHED;
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}
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[[clang::xray_always_instrument]] void callme() { std::printf("called me!\n"); }
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static auto buffer_counter = 0;
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void process_buffer(const char *, XRayBuffer) { ++buffer_counter; }
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int main(int argc, char **argv) {
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assert(__xray_log_register_mode("custom",
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{printing_init, printing_finalize,
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printing_handler, printing_flush_log}) ==
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XRayLogRegisterStatus::XRAY_REGISTRATION_OK);
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assert(__xray_log_select_mode("custom") ==
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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 == "custom");
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assert(__xray_patch() == XRayPatchingStatus::SUCCESS);
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assert(__xray_log_init_mode("custom", "flags_config_here=true") ==
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XRayLogInitStatus::XRAY_LOG_INITIALIZED);
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// Also test that we can use the "binary" version of the
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// __xray_log_niit_mode(...) API.
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assert(__xray_log_init_mode_bin("custom", Options, sizeof(Options)) ==
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XRayLogInitStatus::XRAY_LOG_INITIALIZED);
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// CHECK: printing {{.*}}
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callme(); // CHECK: called me!
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// CHECK: printing {{.*}}
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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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assert(buffer_counter == 1);
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assert(__xray_log_flushLog() == XRayLogFlushStatus::XRAY_LOG_FLUSHED);
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assert(__xray_log_select_mode("not-found") ==
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XRayLogRegisterStatus::XRAY_MODE_NOT_FOUND);
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}
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