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