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27 lines
871 B
27 lines
871 B
7 years ago
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diff --git glibc-2.17-c758a686/nptl/tst-cleanup2.c glibc-2.17-c758a686/nptl/tst-cleanup2.c
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index 5bd1609..65af0f2 100644
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--- glibc-2.17-c758a686/nptl/tst-cleanup2.c
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+++ glibc-2.17-c758a686/nptl/tst-cleanup2.c
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@@ -34,6 +34,12 @@ static int
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do_test (void)
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{
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char *p = NULL;
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+ /* gcc can overwrite the success written value by scheduling instructions
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+ around sprintf. It is allowed to do this since according to C99 the first
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+ argument of sprintf is a character array and NULL is not a valid character
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+ array. Mark the return value as volatile so that it gets reloaded on
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+ return. */
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+ volatile int ret = 0;
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struct sigaction sa;
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sa.sa_handler = sig_handler;
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@@ -50,7 +56,7 @@ do_test (void)
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if (setjmp (jmpbuf))
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{
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puts ("Exiting main...");
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- return 0;
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+ return ret;
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}
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sprintf (p, "This should segv\n");
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