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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/.../dietlibc/ppc-static-ctor-dtor.patch
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# Copyright (C) 2004 - 2006 The T2 SDE 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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We build dietlibc with WANT_DYNAMIC so we get ctor/dtor handling, even
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for static programs, as normally needed.
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The patch zeros register 6 passed for dl_init to _dyn_start since otherwise
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we end up in an inf. loop calling the _dyn_start (where r6 points to) again
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and again ... This is NOT intended for upstream merge - just a quick hack
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to get it working.
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For ppc64 it is not an inf. loop but segfault on exit due invalid pointed
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in the atexit array.
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- Rene Rebe <rene@exactcode.de>
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diff -u dietlibc-0.28/ppc/start.S dietlibc-0.28-fixed/ppc/start.S
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--- dietlibc-0.28/ppc/start.S 2004-09-11 14:37:57.000000000 +0200
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+++ dietlibc-0.28-fixed/ppc/start.S 2005-05-03 23:47:09.000000000 +0200
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@@ -27,7 +29,7 @@
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stw 5,environ@l(14)
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#ifdef WANT_DYNAMIC
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- mr 6,7
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+ xor 6,6,6
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bl _dyn_start
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#else
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#ifdef WANT_STACKGAP
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--- dietlibc-0.29/ppc64/start.S 2005-05-13 18:39:32.000000000 +0000
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+++ dietlibc-0.29-fixed/ppc64/start.S 2005-12-26 20:40:18.000000000 +0000
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@@ -60,7 +60,7 @@
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#ifdef WANT_DYNAMIC
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/* #warning dynamic */
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- mr 6,7
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+ xor 6,6,6
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bl ._dyn_start
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#else
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/* #warning static */
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