1// Check that we can get the first function argument logged
2// using a custom logging function.
3//
4// RUN: %clangxx_xray -std=c++11 %s -o %t
5// RUN: rm -f arg1-logger-*
6// RUN: XRAY_OPTIONS="patch_premain=true verbosity=1 xray_mode=xray-basic \
7// RUN: xray_logfile_base=arg1-logger-" %run %t 2>&1 | FileCheck %s
8//
9// After all that, clean up the XRay log file.
10//
11// RUN: rm -f arg1-logger-*
12
13// REQUIRES: target={{(aarch64|x86_64)-.*}}
14
15#include "xray/xray_interface.h"
16
17#include <cinttypes>
18#include <cstdio>
19
20void arg1logger(int32_t fn, XRayEntryType t, uint64_t a1) {
21 printf(format: "Arg1: %" PRIx64 ", XRayEntryType %u\n", a1, t);
22}
23
24[[clang::xray_always_instrument, clang::xray_log_args(1)]] void foo(void *) {}
25
26int main() {
27 // CHECK: XRay: Log file in 'arg1-logger-{{.*}}'
28
29 __xray_set_handler_arg1(entry: arg1logger);
30 foo(nullptr);
31 // CHECK: Arg1: 0, XRayEntryType 3
32
33 __xray_remove_handler_arg1();
34 foo((void *) 0xBADC0DE);
35 // nothing expected to see here
36
37 __xray_set_handler_arg1(entry: arg1logger);
38 foo((void *) 0xDEADBEEFCAFE);
39 // CHECK-NEXT: Arg1: deadbeefcafe, XRayEntryType 3
40 foo((void *) -1);
41 // CHECK-NEXT: Arg1: ffffffffffffffff, XRayEntryType 3
42}
43

source code of compiler-rt/test/xray/TestCases/Posix/arg1-logger.cpp