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