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Call snprintf() from signal handler only if required in test-async-sig
snprintf() is not guaranteed to be safely callable from a signal handler, so avoid calling it in the default non-verbose case.
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1 changed files with 2 additions and 1 deletions
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@ -89,7 +89,8 @@ do_backtrace (int may_print, int get_proc_name)
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buf[0] = '\0';
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if (get_proc_name || (may_print && verbose))
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{
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if (unw_get_proc_name (&cursor, name, sizeof (name), &off) == 0)
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ret = unw_get_proc_name (&cursor, name, sizeof (name), &off);
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if (ret == 0 && (may_print && verbose))
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{
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if (off)
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snprintf (buf, sizeof (buf), "<%s+0x%lx>", name, (long) off);
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