// Check that we can get the first function argument logged // using a custom logging function. // // RUN: %clangxx_xray -std=c++11 %s -o %t // RUN: rm -f arg1-logger-* // RUN: XRAY_OPTIONS="patch_premain=true verbosity=1 xray_mode=xray-basic \ // RUN: xray_logfile_base=arg1-logger-" %run %t 2>&1 | FileCheck %s // // After all that, clean up the XRay log file. // // RUN: rm -f arg1-logger-* // // At the time of writing, the ARM trampolines weren't written yet. // XFAIL: arm || aarch64 || mips // See the mailing list discussion of r296998. // UNSUPPORTED: powerpc64le #include "xray/xray_interface.h" #include #include void arg1logger(int32_t fn, XRayEntryType t, uint64_t a1) { printf("Arg1: %" PRIx64 ", XRayEntryType %u\n", a1, t); } [[clang::xray_always_instrument, clang::xray_log_args(1)]] void foo(void *) {} int main() { // CHECK: XRay: Log file in 'arg1-logger-{{.*}}' __xray_set_handler_arg1(arg1logger); foo(nullptr); // CHECK: Arg1: 0, XRayEntryType 3 __xray_remove_handler_arg1(); foo((void *) 0xBADC0DE); // nothing expected to see here __xray_set_handler_arg1(arg1logger); foo((void *) 0xDEADBEEFCAFE); // CHECK-NEXT: Arg1: deadbeefcafe, XRayEntryType 3 foo((void *) -1); // CHECK-NEXT: Arg1: ffffffffffffffff, XRayEntryType 3 }