File: odr_c_test.c

package info (click to toggle)
llvm-toolchain-3.9 1%3A3.9.1-9
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 441,144 kB
  • ctags: 428,836
  • sloc: cpp: 2,546,577; ansic: 538,318; asm: 119,677; objc: 103,316; python: 102,148; sh: 27,847; pascal: 5,626; ml: 5,510; perl: 5,293; lisp: 4,801; makefile: 2,177; xml: 686; cs: 362; php: 212; csh: 117
file content (28 lines) | stat: -rw-r--r-- 885 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
// Test that we can properly report an ODR violation
// between an instrumented global and a non-instrumented global.

// RUN: %clang_asan %s -fPIC -shared -o %t-1.so  -DFILE1
// RUN: %clang_asan %s -fPIC -shared -o %t-2.so  -DFILE2
// RUN: %clang_asan %s -fPIE %t-1.so %t-2.so -Wl,-R`pwd` -o %t
// RUN: not %run %t 2>&1 | FileCheck %s
//
// REQUIRES: x86_64-target-arch
//
// CHECK: The following global variable is not properly aligned.
// CHECK: ERROR: AddressSanitizer: odr-violation
#if defined(FILE1)
__attribute__((aligned(8))) int x;
__attribute__((aligned(1))) char y;
// The gold linker puts ZZZ at the start of bss (where it is aligned)
// unless we have a large alternative like Displace:
__attribute__((aligned(1))) char Displace[105];
__attribute__((aligned(1))) char ZZZ[100];
#elif defined(FILE2)
int ZZZ = 1;
#else
extern int ZZZ;
int main() {
  return ZZZ;
}
#endif