diff options
author | Dean Michael Berris <dberris@google.com> | 2017-06-16 03:24:07 +0000 |
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committer | Dean Michael Berris <dberris@google.com> | 2017-06-16 03:24:07 +0000 |
commit | ca24bb081b5fc6f885bec6f1a0c2db05f1184900 (patch) | |
tree | e945432afab8a2852cb737ac534a4830b11045d8 /test/xray | |
parent | f6b2a077d0f4aef7ac469d3d9b18070b361f7222 (diff) |
Add test for logging the implicit "this" argument for C++ member functions.
Summary:
This allows us to do more interesting things with the data available to
C++ methods, to log the `this` pointer.
Depends on D34050.
Reviewers: pelikan
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D34051
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@305545 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/xray')
-rw-r--r-- | test/xray/TestCases/Linux/arg1-logging-implicit-this.cc | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/test/xray/TestCases/Linux/arg1-logging-implicit-this.cc b/test/xray/TestCases/Linux/arg1-logging-implicit-this.cc new file mode 100644 index 000000000..66dfce9a3 --- /dev/null +++ b/test/xray/TestCases/Linux/arg1-logging-implicit-this.cc @@ -0,0 +1,31 @@ +// Intercept the implicit 'this' argument of class member functions. +// +// RUN: %clangxx_xray -g -std=c++11 %s -o %t +// RUN: rm log-args-this-* || true +// RUN: XRAY_OPTIONS="patch_premain=true verbosity=1 xray_logfile_base=log-args-this-" %run %t +// +// XFAIL: arm || aarch64 || mips +// UNSUPPORTED: powerpc64le +#include "xray/xray_interface.h" +#include <cassert> + +class A { + public: + [[clang::xray_always_instrument, clang::xray_log_args(1)]] void f() { + // does nothing. + } +}; + +volatile uint64_t captured = 0; + +void handler(int32_t, XRayEntryType, uint64_t arg1) { + captured = arg1; +} + +int main() { + __xray_set_handler_arg1(handler); + A instance; + instance.f(); + __xray_remove_handler_arg1(); + assert(captured == (uint64_t)&instance); +} |