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# --- T2-COPYRIGHT-NOTE-BEGIN ---# This copyright note is auto-generated by ./scripts/Create-CopyPatch.# # T2 SDE: package/.../dietlibc/sparc64-longjmp.patch# Copyright (C) 2006 The T2 SDE Project# # More information can be found in the files COPYING and README.# # This patch file is dual-licensed. It is available under the license the# patched project is licensed under, as long as it is an OpenSource license# as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms# of the GNU General Public License as published by the Free Software# Foundation; either version 2 of the License, or (at your option) any later# version.# --- T2-COPYRIGHT-NOTE-END ---
This fixes the sparc64 longjmp to inject the return value at the correctmemory location (and not SIGBUS). MC_G1 is just the index in the registerarray, and before that array there are 4 more words placed, thus the offset4 and multiple with the word-size ...
- Rene Rebe <rene@exactcode.de>
--- dietlibc-0.29/sparc64/longjmp.S 2002-09-16 11:17:02.000000000 +0000
+++ dietlibc-0.29-fixed/sparc64/longjmp.S 2006-06-21 15:00:15.000000000 +0000
@@ -11,7 +11,7 @@
.type __libc_longjmp,function __libc_longjmp: movrz %o1, 1, %o1 /* never return 0 in setjmp */- stx %o1, [ %o0+MC_G1 ] /* save return value in context */
+ stx %o1, [%o0 + (4+MC_G1) * 8] /* save return value in context */
ld [ %o0+FLAG_SAVEMASK ], %o1 /* has setjmp saved the signalmask ? */ ta 0x6f /* setcontext / restore context */ .size __libc_longjmp,.-__libc_longjmp
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