compiler-rt/test/xray/TestCases/Posix/pic_test.cpp

   1 // Test to check if we handle pic code properly.
   2
   3 // RUN: %clangxx_xray -fxray-instrument -std=c++11 -ffunction-sections \
   4 // RUN:     -fdata-sections -fpic -fpie -Wl,--gc-sections %s -o %t
   5 // RUN: rm -f pic-test-logging-*
   6 // RUN: XRAY_OPTIONS="patch_premain=true verbosity=1 xray_mode=xray-basic \
   7 // RUN:     xray_logfile_base=pic-test-logging-" %run %t 2>&1 | FileCheck %s
   8 // After all that, clean up the output xray log.
   9 //
  10 // RUN: rm -f pic-test-logging-*
  11
  12 // UNSUPPORTED: target-is-mips64,target-is-mips64el
  13
  14 #include <cstdio>
  15
  16 [[clang::xray_always_instrument]]
  17 unsigned short foo (unsigned b);
  18
  19 [[clang::xray_always_instrument]]
  20 unsigned short bar (unsigned short a)
  21 {
  22   printf("bar() is always instrumented!\n");
  23   return foo(a);
  24 }
  25
  26 unsigned short foo (unsigned b)
  27 {
  28   printf("foo() is always instrumented!\n");
  29   return b + b + 5;
  30 }
  31
  32 int main ()
  33 {
  34   // CHECK: XRay: Log file in 'pic-test-logging-{{.*}}'
  35   bar(10);
  36   // CHECK: bar() is always instrumented!
  37   // CHECK-NEXT: foo() is always instrumented!
  38 }