0573159b84
gcc by default does not accept for loop declarations in C files (one must choose C99 mode first, which we don't). Place the declaration outside the loop, to make this code more conformant. llvm-svn: 257166
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#if defined(__linux__)
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#include <sys/prctl.h>
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#endif
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int
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main (int argc, char **argv)
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{
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#if defined(__linux__)
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// Immediately enable any ptracer so that we can allow the stub attach
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// operation to succeed. Some Linux kernels are locked down so that
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// only an ancestor process can be a ptracer of a process. This disables that
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// restriction. Without it, attach-related stub tests will fail.
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#if defined(PR_SET_PTRACER) && defined(PR_SET_PTRACER_ANY)
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// For now we execute on best effort basis. If this fails for
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// some reason, so be it.
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const int prctl_result = prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0);
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(void) prctl_result;
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#endif
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#endif
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int do_crash = 0;
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int do_wait = 0;
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int idx;
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for (idx = 1; idx < argc; idx++)
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{
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if (strcmp(argv[idx], "CRASH") == 0)
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do_crash = 1;
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if (strcmp(argv[idx], "WAIT") == 0)
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do_wait = 1;
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}
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printf("PID: %d END\n", getpid());
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if (do_wait)
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{
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int keep_waiting = 1;
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while (keep_waiting)
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{
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printf ("Waiting\n");
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sleep(1); // Stop here to unset keep_waiting
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}
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}
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if (do_crash)
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{
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char *touch_me_not = (char *) 0;
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printf ("About to crash.\n");
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touch_me_not[0] = 'a';
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}
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printf ("Got there on time and it did not crash.\n");
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return 0;
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}
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