compiler-rt/test/asan/TestCases/Linux/global-overflow-lld.cpp

   1 // Test that gc-sections-friendly instrumentation of globals does not introduce
   2 // false negatives with the LLD linker.
   3 // RUN: %clangxx_asan -fuse-ld=lld -Wl,-gc-sections -ffunction-sections -fdata-sections -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
   4 // REQUIRES: lld
   5
   6 #include <string.h>
   7 int main(int argc, char **argv) {
   8   static char XXX[10];
   9   static char YYY[10];
  10   static char ZZZ[10];
  11   memset(XXX, 0, 10);
  12   memset(YYY, 0, 10);
  13   memset(ZZZ, 0, 10);
  14   int res = YYY[argc * 10];  // BOOOM
  15   // CHECK: {{READ of size 1 at}}
  16   // CHECK: {{located 0 bytes after global variable}}
  17   res += XXX[argc] + ZZZ[argc];
  18   return res;
  19 }