| /* Test case for buffer overflow bug in token stringification. |
| See PR preprocessor/8055 for details. |
| Reported by Alexander N. Kabaev <ak03@gte.com>. |
| Test case written by Zack Weinberg <zack@codesourcery.com>. */ |
| |
| /* { dg-do preprocess } */ |
| |
| #define S(x) #x |
| |
| /* Fill up one internal buffer with data. */ |
| S(1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 1234567890123456789012345678901234567890123456789012345678901234567890 |
| 12345678901234567890123456789012345678901234567890123456789012345) |
| |
| /* When stringify_arg() was called with an empty macro argument, it would |
| advance the buffer pointer by one but fail to check for running past the |
| end of the buffer. We can only know where the end of the buffer is to |
| within about eight bytes, so do this sixteen times to be sure of hitting |
| it. */ |
| |
| S() |
| S() |
| S() |
| S() |
| S() |
| S() |
| S() |
| S() |
| S() |
| S() |
| S() |
| S() |
| S() |
| S() |
| S() |
| S() |
| |
| /* Now allocate more memory in the buffer, which should provoke a crash. */ |
| |
| S(abcdefghijklmnopqrstuvwxyz) |
| S(abcdefghijklmnopqrstuvwxyz) |
