compiler-rt/test/asan/TestCases/Linux/odr-violation.cpp

   1 // FIXME: https://code.google.com/p/address-sanitizer/issues/detail?id=316
   2 // XFAIL: android
   3 // Fails with debug checks: https://bugs.llvm.org/show_bug.cgi?id=46862
   4 // XFAIL: !compiler-rt-optimized && !target=riscv64{{.*}}
   5 //
   6 // We use fast_unwind_on_malloc=0 to have full unwinding even w/o frame
   7 // pointers. This setting is not on by default because it's too expensive.
   8 //
   9 // Note, -asan-use-private-alias=1 -asan-use-odr-indicator=1 is the default.
  10 // -fno-sanitize-address-use-odr-indicator turns off both.
  11 //
  12 // Different size: detect a bug if detect_odr_violation>=1
  13 // RUN: %clangxx_asan -g -DBUILD_SO=1 -fPIC -shared -fno-sanitize-address-use-odr-indicator %s -o %dynamiclib
  14 // RUN: %clangxx_asan -g -fno-sanitize-address-use-odr-indicator %s %ld_flags_rpath_exe -o %t-ODR-EXE
  15 // RUN: %env_asan_opts=fast_unwind_on_malloc=0:detect_odr_violation=1 not %run %t-ODR-EXE 2>&1 | FileCheck %s
  16 // RUN: %env_asan_opts=fast_unwind_on_malloc=0:detect_odr_violation=2 not %run %t-ODR-EXE 2>&1 | FileCheck %s
  17 // RUN: %env_asan_opts=fast_unwind_on_malloc=0:detect_odr_violation=0     %run %t-ODR-EXE 2>&1 | FileCheck %s --check-prefix=DISABLED
  18 // RUN: %env_asan_opts=fast_unwind_on_malloc=0                        not %run %t-ODR-EXE 2>&1 | FileCheck %s
  19 //
  20 // Same size: report a bug only if detect_odr_violation>=2.
  21 // RUN: %clangxx_asan -g -DBUILD_SO=1 -fPIC -shared -fno-sanitize-address-use-odr-indicator %s -o %dynamiclib -DSZ=100
  22 // RUN: %env_asan_opts=fast_unwind_on_malloc=0:detect_odr_violation=1     %run %t-ODR-EXE 2>&1 | FileCheck %s --check-prefix=DISABLED
  23 // RUN: %env_asan_opts=fast_unwind_on_malloc=0:detect_odr_violation=2 not %run %t-ODR-EXE 2>&1 | FileCheck %s
  24 // RUN: %env_asan_opts=fast_unwind_on_malloc=0                        not %run %t-ODR-EXE 2>&1 | FileCheck %s
  25 // RUN: echo "odr_violation:foo::ZZZ" > %t.supp
  26 // RUN: %env_asan_opts=fast_unwind_on_malloc=0:detect_odr_violation=2:suppressions=%t.supp  not %run %t-ODR-EXE 2>&1 | FileCheck %s
  27 // RUN: echo "odr_violation:foo::G" > %t.supp
  28 // RUN: %env_asan_opts=fast_unwind_on_malloc=0:detect_odr_violation=2:suppressions=%t.supp      %run %t-ODR-EXE 2>&1 | FileCheck %s --check-prefix=DISABLED
  29 // RUN: rm -f %t.supp
  30 //
  31 // Use private aliases for global variables without indicator symbol.
  32 // RUN: %clangxx_asan -g -DBUILD_SO=1 -fPIC -shared -mllvm -asan-use-odr-indicator=0 %s -o %dynamiclib -DSZ=100
  33 // RUN: %clangxx_asan -g -mllvm -asan-use-odr-indicator=0 %s %ld_flags_rpath_exe -o %t-ODR-EXE
  34 // RUN: %env_asan_opts=fast_unwind_on_malloc=0 %run %t-ODR-EXE 2>&1 | FileCheck %s --check-prefix=DISABLED
  35
  36 // Use private aliases for global variables: use indicator symbol to detect ODR violation.
  37 // RUN: %clangxx_asan -g -DBUILD_SO=1 -fPIC -shared %s -o %dynamiclib -DSZ=100
  38 // RUN: %clangxx_asan -g %s %ld_flags_rpath_exe -o %t-ODR-EXE
  39 // RUN: %env_asan_opts=fast_unwind_on_malloc=0 not %run %t-ODR-EXE 2>&1 | FileCheck %s
  40
  41 // Same as above but with clang switches.
  42 // RUN: %clangxx_asan -g -DBUILD_SO=1 -fPIC -shared -fsanitize-address-use-odr-indicator %s -o %dynamiclib -DSZ=100
  43 // RUN: %clangxx_asan -g -fsanitize-address-use-odr-indicator %s %ld_flags_rpath_exe -o %t-ODR-EXE
  44 // RUN: %env_asan_opts=fast_unwind_on_malloc=0 not %run %t-ODR-EXE 2>&1 | FileCheck %s
  45
  46 // GNU driver doesn't handle .so files properly.
  47 // REQUIRES: Clang
  48
  49 // REQUIRES: fast-unwinder-works
  50
  51 #ifndef SZ
  52 # define SZ 4
  53 #endif
  54
  55 #if BUILD_SO
  56 namespace foo { char G[SZ]; }
  57 #else
  58 #include <stdio.h>
  59 namespace foo { char G[100]; }
  60 // CHECK: ERROR: AddressSanitizer: odr-violation
  61 // CHECK: size=100 'foo::G' {{.*}}odr-violation.cpp:[[@LINE-2]]
  62 // CHECK: size={{4|100}} 'foo::G'
  63 int main(int argc, char **argv) {
  64   printf("PASS: %p\n", &foo::G);
  65 }
  66 #endif
  67
  68 // CHECK: These globals were registered at these points:
  69 // CHECK: {{odr-violation.cpp|ODR-EXE}}
  70 // CHECK: odr-violation.cpp{{$}}
  71 // CHECK: SUMMARY: AddressSanitizer: odr-violation: global 'foo::G' at {{.*}}odr-violation.cpp
  72 // DISABLED: PASS