1// Intercept the implicit 'this' argument of class member functions.
2//
3// RUN: %clangxx_xray -g -std=c++11 %s -o %t
4// RUN: rm -f log-args-this-*
5// RUN: XRAY_OPTIONS="patch_premain=true verbosity=1 xray_logfile_base=log-args-this-" %run %t
6
7// REQUIRES: target={{(aarch64|x86_64)-.*}}
8
9#include "xray/xray_interface.h"
10#include <cassert>
11
12class A {
13 public:
14 [[clang::xray_always_instrument, clang::xray_log_args(1)]] void f() {
15 // does nothing.
16 }
17};
18
19volatile uint64_t captured = 0;
20
21void handler(int32_t, XRayEntryType, uint64_t arg1) {
22 captured = arg1;
23}
24
25int main() {
26 __xray_set_handler_arg1(entry: handler);
27 A instance;
28 instance.f();
29 __xray_remove_handler_arg1();
30 assert(captured == (uint64_t)&instance);
31}
32

source code of compiler-rt/test/xray/TestCases/Posix/arg1-logging-implicit-this.cpp