diff options
Diffstat (limited to 'lib/asan/lit_tests/TestCases/stack-buffer-overflow-with-position.cc')
| -rw-r--r-- | lib/asan/lit_tests/TestCases/stack-buffer-overflow-with-position.cc | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/lib/asan/lit_tests/TestCases/stack-buffer-overflow-with-position.cc b/lib/asan/lit_tests/TestCases/stack-buffer-overflow-with-position.cc new file mode 100644 index 000000000000..91820db0142a --- /dev/null +++ b/lib/asan/lit_tests/TestCases/stack-buffer-overflow-with-position.cc @@ -0,0 +1,45 @@ +// RUN: %clangxx_asan -O2 %s -o %t +// RUN: not %t -2 2>&1 | FileCheck --check-prefix=CHECK-m2 %s +// RUN: not %t -1 2>&1 | FileCheck --check-prefix=CHECK-m1 %s +// RUN: %t 0 +// RUN: %t 8 +// RUN: not %t 9 2>&1 | FileCheck --check-prefix=CHECK-9 %s +// RUN: not %t 10 2>&1 | FileCheck --check-prefix=CHECK-10 %s +// RUN: not %t 62 2>&1 | FileCheck --check-prefix=CHECK-62 %s +// RUN: not %t 63 2>&1 | FileCheck --check-prefix=CHECK-63 %s +// RUN: not %t 63 2>&1 | FileCheck --check-prefix=CHECK-63 %s +// RUN: not %t 73 2>&1 | FileCheck --check-prefix=CHECK-73 %s +// RUN: not %t 74 2>&1 | FileCheck --check-prefix=CHECK-74 %s +// RUN: not %t 126 2>&1 | FileCheck --check-prefix=CHECK-126 %s +// RUN: not %t 127 2>&1 | FileCheck --check-prefix=CHECK-127 %s +// RUN: not %t 137 2>&1 | FileCheck --check-prefix=CHECK-137 %s +// RUN: not %t 138 2>&1 | FileCheck --check-prefix=CHECK-138 %s +#include <string.h> +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> +int main(int argc, char **argv) { + assert(argc >= 2); + int idx = atoi(argv[1]); + char AAA[10], BBB[10], CCC[10]; + memset(AAA, 0, sizeof(AAA)); + memset(BBB, 0, sizeof(BBB)); + memset(CCC, 0, sizeof(CCC)); + int res = 0; + char *p = AAA + idx; + printf("AAA: %p\ny: %p\nz: %p\np: %p\n", AAA, BBB, CCC, p); + // make sure BBB and CCC are not removed; + return *(short*)(p) + BBB[argc % 2] + CCC[argc % 2]; +} +// CHECK-m2: 'AAA' <== Memory access at offset 30 underflows this variable +// CHECK-m1: 'AAA' <== Memory access at offset 31 partially underflows this variable +// CHECK-9: 'AAA' <== Memory access at offset 41 partially overflows this variable +// CHECK-10: 'AAA' <== Memory access at offset 42 overflows this variable +// CHECK-62: 'BBB' <== Memory access at offset 94 underflows this variable +// CHECK-63: 'BBB' <== Memory access at offset 95 partially underflows this variable +// CHECK-73: 'BBB' <== Memory access at offset 105 partially overflows this variable +// CHECK-74: 'BBB' <== Memory access at offset 106 overflows this variable +// CHECK-126: 'CCC' <== Memory access at offset 158 underflows this variable +// CHECK-127: 'CCC' <== Memory access at offset 159 partially underflows this variable +// CHECK-137: 'CCC' <== Memory access at offset 169 partially overflows this variable +// CHECK-138: 'CCC' <== Memory access at offset 170 overflows this variable |