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32 lines
1.3 KiB
Makefile
32 lines
1.3 KiB
Makefile
# Copyright (C) 2003 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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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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# 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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# 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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ifeq ($(subdir),nptl)
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# It turns out that stack coloring is in general not good on P4s. Some
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# applications will benefit. We will probably have a configuration option
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# at some point. Enabling coloring can be done with
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#
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# -DCOLORING_INCREMENT=128
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#
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# What is useful is to avoid the 64k aliasing problem which reliably
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# happens if all stacks use sizes which are a multiple of 64k. Tell
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# the stack allocator to disturb this by allocation one more page if
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# necessary.
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CFLAGS-pthread_create.c += -DMULTI_PAGE_ALIASING=65536
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endif
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