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
56namespace foo { char G[SZ]; }
57#else
58#include <stdio.h>
59namespace foo { char G[100]; }
60// CHECK: ERROR: AddressSanitizer: odr-violation
61// CHECK: size=100 'foo::G' {{.*}}odr-violation.cpp:[[@LINE-2]] in {{.*}}.tmp-ODR-EXE
62// CHECK: size={{4|100}} 'foo::G'
63int main(int argc, char **argv) {
64 printf(format: "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
73

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