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commit b763f6ae859ecea70a5dacb8ad45c71d5f667e2e
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Author: Andreas Schwab <schwab@suse.de>
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Date: Tue Sep 30 12:41:11 2014 +0200
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aarch64: Increase MINSIGSTKSZ and SIGSTKSZ (bug 16850)
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diff --git a/sysdeps/unix/sysv/linux/aarch64/bits/sigstack.h b/sysdeps/unix/sysv/linux/aarch64/bits/sigstack.h
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new file mode 100644
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index 0000000..8f2fb76
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--- /dev/null
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+++ b/sysdeps/unix/sysv/linux/aarch64/bits/sigstack.h
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@@ -0,0 +1,54 @@
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+/* sigstack, sigaltstack definitions.
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+ Copyright (C) 2015 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#ifndef _SIGNAL_H
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+# error "Never include this file directly. Use <signal.h> instead"
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+#endif
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+
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+
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+/* Structure describing a signal stack (obsolete). */
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+struct sigstack
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+ {
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+ void *ss_sp; /* Signal stack pointer. */
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+ int ss_onstack; /* Nonzero if executing on this stack. */
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+ };
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+
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+
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+/* Possible values for `ss_flags.'. */
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+enum
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+{
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+ SS_ONSTACK = 1,
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+#define SS_ONSTACK SS_ONSTACK
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+ SS_DISABLE
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+#define SS_DISABLE SS_DISABLE
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+};
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+
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+/* Minimum stack size for a signal handler. */
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+#define MINSIGSTKSZ 5120
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+
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+/* System default stack size. */
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+#define SIGSTKSZ 16384
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+
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+
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+/* Alternate, preferred interface. */
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+typedef struct sigaltstack
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+ {
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+ void *ss_sp;
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+ int ss_flags;
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+ size_t ss_size;
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+ } stack_t;
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