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diff --git a/src/third_party/unwind/dist/src/x86/longjmp.S b/src/third_party/unwind/dist/src/x86/longjmp.S
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+/* libunwind - a platform-independent unwind library
+ Copyright (C) 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. */
+
+ .globl _UI_longjmp_cont
+
+ .type _UI_longjmp_cont, @function
+_UI_longjmp_cont:
+ .cfi_startproc
+ .cfi_register 8, 0 /* IP saved in EAX */
+ push %eax /* push target IP as return address */
+ .cfi_restore 8
+ mov %edx, %eax /* set up return-value */
+ ret
+ .cfi_endproc
+ .size _UI_siglongjmp_cont, .-_UI_longjmp_cont
+ /* We do not need executable stack. */
+ .section .note.GNU-stack,"",@progbits