diff options
Diffstat (limited to 'test/xray/TestCases/Linux/common-trampoline-alignment.cc')
-rw-r--r-- | test/xray/TestCases/Linux/common-trampoline-alignment.cc | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/test/xray/TestCases/Linux/common-trampoline-alignment.cc b/test/xray/TestCases/Linux/common-trampoline-alignment.cc new file mode 100644 index 000000000000..5d1cc1e9b451 --- /dev/null +++ b/test/xray/TestCases/Linux/common-trampoline-alignment.cc @@ -0,0 +1,57 @@ +// Make sure that we're aligning the stack properly to support handlers that +// expect 16-byte alignment of the stack. +// +// RUN: %clangxx_xray -std=c++11 %s -o %t +// RUN: XRAY_OPTIONS="patch_premain=false verbosity=1 xray_naive_log=false" \ +// RUN: %run %t 2>&1 +// REQUIRES: x86_64-linux +// REQUIRES: built-in-llvm-tree +#include "xray/xray_interface.h" +#include <stdio.h> +#include <xmmintrin.h> + +[[clang::xray_never_instrument]] __attribute__((weak)) __m128 f(__m128 *i) { + return *i; +} + +[[clang::xray_always_instrument]] __attribute__((noinline)) void noarg() { + __m128 v = {}; + f(&v); +} + +[[ clang::xray_always_instrument, clang::xray_log_args(1) ]] +__attribute__((noinline)) void arg1(int) { + __m128 v = {}; + f(&v); +} + +[[clang::xray_always_instrument]] __attribute__((noinline)) +void no_alignment() {} + +[[clang::xray_never_instrument]] void noarg_handler(int32_t, + XRayEntryType) { + printf("noarg handler called\n"); + __m128 v = {}; + f(&v); +} + +[[clang::xray_never_instrument]] void arg1_handler(int32_t, XRayEntryType, + uint64_t) { + printf("arg1 handler called\n"); + __m128 v = {}; + f(&v); +} + +int main(int argc, char *argv[]) { + __xray_set_handler(noarg_handler); + __xray_set_handler_arg1(arg1_handler); + __xray_patch(); + noarg(); // CHECK: noarg handler called + arg1(argc); // CHECK: arg1 handler called + no_alignment(); + __xray_unpatch(); + __xray_remove_handler(); + __xray_remove_handler_arg1(); + noarg(); + arg1(argc); +} |