File: odr_c_test.c

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (26 lines) | stat: -rw-r--r-- 901 bytes parent folder | download | duplicates (2) 
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
 
// Test that we can properly report an ODR violation
// between an instrumented global and a non-instrumented global.

// RUN: %clang_asan -fcommon %s -fPIC -shared -o %dynamiclib1  -DFILE1
// RUN: %clang_asan -fcommon %s -fPIC -shared -o %dynamiclib2  -DFILE2
// RUN: %clang_asan -fcommon %s -fPIE %ld_flags_rpath_exe1 %ld_flags_rpath_exe2 -o %t
// RUN: not %run %t 2>&1 | FileCheck %s
//
// 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