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45 lines
1.7 KiB
45 lines
1.7 KiB
15 years ago
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# --- SDE-COPYRIGHT-NOTE-BEGIN ---
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# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
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#
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# Filename: package/.../uclibc/901-hi_lo_system_calls.patch.disable
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# Copyright (C) 2009 The OpenSDE Project
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#
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# More information can be found in the files COPYING and README.
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#
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# This patch file is dual-licensed. It is available under the license the
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# patched project is licensed under, as long as it is an OpenSource license
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# as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
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# of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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# --- SDE-COPYRIGHT-NOTE-END ---
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https://dev.openwrt.org/browser/trunk/toolchain/uClibc/patches-0.9.30.1/901-hi_lo_system_calls.patch
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[toolchain] Do not save variables in hi or lo across system calls, fixes issues with gcc-4.4 (#5351)
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The kernel does not save these registers across system calls. GCC 4.4
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has gotten more agressive about using them for temporary variables, so
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this shows up as intermittent crashes if you use a recent compiler.
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Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com>
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--- ./libc/sysdeps/linux/mips/bits/syscalls.h.orig
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+++ ./libc/sysdeps/linux/mips/bits/syscalls.h
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@@ -261,7 +261,7 @@
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})
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#define __SYSCALL_CLOBBERS "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \
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- "$14", "$15", "$24", "$25", "memory"
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+ "$14", "$15", "$24", "$25", "hi", "lo", "memory"
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#else /* N32 || N64 */
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@@ -318,7 +318,7 @@
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})
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#define __SYSCALL_CLOBBERS "$1", "$3", "$10", "$11", "$12", "$13", \
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- "$14", "$15", "$24", "$25", "memory"
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+ "$14", "$15", "$24", "$25", "hi", "lo", "memory"
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#endif
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