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diff --git a/src/third_party/unwind/dist/src/ia64/sigsetjmp.S b/src/third_party/unwind/dist/src/ia64/sigsetjmp.S
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+/* libunwind - a platform-independent unwind library
+ Copyright (C) 2003-2004 Hewlett-Packard Co
+ Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
+
+This file is part of libunwind.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
+
+#include "jmpbuf.h"
+
+#define SIG_BLOCK 0
+
+ .align 32
+
+ .global __sigsetjmp
+ .global sigprocmask
+
+ .proc __sigsetjmp
+
+__sigsetjmp:
+ .prologue
+ .save ar.pfs, r35
+ alloc loc1 = ar.pfs, 2, 3, 3, 0
+ add out2 = JB_MASK*8, in0
+ .save rp, loc0
+ mov loc0 = rp
+ mov out0 = SIG_BLOCK
+ .body
+ ;;
+ cmp.ne p6, p0 = in1, r0
+ mov out1 = r0
+ mov loc2 = ar.bsp
+(p6) br.call.sptk.many rp = sigprocmask // sigjmp_buf[JB_MASK] = sigmask
+ ;;
+
+ add r16 = JB_MASK_SAVED*8, in0
+ st8 [in0] = sp, (JB_RP-JB_SP)*8 // sigjmp_buf[JB_SP] = sp
+ mov r8 = 0
+ ;;
+ st8 [in0] = loc0, (JB_BSP-JB_RP)*8 // sigjmp_buf[JB_RP] = rp
+ st8 [r16] = in1 // sigjmp_buf[JB_MASK_SAVED] = savemask
+ mov rp = loc0
+ ;;
+ st8 [in0] = loc2 // sigjmp_buf[JB_BSP] = bsp
+ mov.i ar.pfs = loc1
+ br.ret.sptk.many rp
+
+ .endp __sigsetjmp
+#ifdef __linux__
+ /* We do not need executable stack. */
+ .section .note.GNU-stack,"",@progbits
+#endif