From 5d4c6d95015015bdc10eba4d6687018d2cc172d3 Mon Sep 17 00:00:00 2001
From: Zachary Ware <zachary.ware@gmail.com>
Date: Sat, 17 Sep 2016 01:25:24 -0500
Subject: Closes #27979: Remove bundled copy of libffi

An installed copy of libffi is now required for building _ctypes on
any platform but OSX and Windows.
---
 Modules/_ctypes/libffi/src/nios2/sysv.S | 136 --------------------------------
 1 file changed, 136 deletions(-)
 delete mode 100644 Modules/_ctypes/libffi/src/nios2/sysv.S

(limited to 'Modules/_ctypes/libffi/src/nios2/sysv.S')

diff --git a/Modules/_ctypes/libffi/src/nios2/sysv.S b/Modules/_ctypes/libffi/src/nios2/sysv.S
deleted file mode 100644
index 75f442bbee..0000000000
--- a/Modules/_ctypes/libffi/src/nios2/sysv.S
+++ /dev/null
@@ -1,136 +0,0 @@
-/* Low-level libffi support for Altera Nios II.
-
-   Copyright (c) 2013 Mentor Graphics.
-
-   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.  */
-
-/* This function is declared on the C side as 
-
-   extern UINT64 ffi_call_sysv (void (*arghook) (char *, extended_cif *),
-	  		        extended_cif *ecif,
-				unsigned nbytes, 
-				void (*fn) (void));
-	
-   On input, the arguments appear as
-	r4 = arghook
-	r5 = ecif
-	r6 = nbytes
-	r7 = fn
-*/
-
-	.section	.text
-	.align	2
-	.global	ffi_call_sysv
-	.type	ffi_call_sysv, @function
-
-ffi_call_sysv:
-	.cfi_startproc
-
-	/* Create the stack frame, saving r16 so we can use it locally.  */
-	addi	sp, sp, -12
-	.cfi_def_cfa_offset 12
-	stw	ra, 8(sp)
-	stw	fp, 4(sp)
-	stw	r16, 0(sp)
-	.cfi_offset 31, -4
-	.cfi_offset 28, -8
-	.cfi_offset 16, -12
-	mov	fp, sp
-	.cfi_def_cfa_register 28
-	mov	r16, r7
-
-	/* Adjust the stack pointer to create the argument buffer
-	   nbytes long.  */
-	sub	sp, sp, r6
-
-	/* Call the arghook function.  */
-	mov	r2, r4		/* fn */
-	mov	r4, sp		/* argbuffer */
-	callr	r2		/* r5 already contains ecif */
-
-	/* Pop off the first 16 bytes of the argument buffer on the stack,
-	   transferring the contents to the argument registers.  */
-	ldw	r4, 0(sp)
-	ldw	r5, 4(sp)
-	ldw	r6, 8(sp)
-	ldw	r7, 12(sp)
-	addi	sp, sp, 16
-
-	/* Call the user function, which leaves its result in r2 and r3.  */
-	callr	r16
-
-	/* Pop off the stack frame.  */
-	mov	sp, fp
-	ldw	ra, 8(sp)
-	ldw	fp, 4(sp)
-	ldw	r16, 0(sp)
-	addi	sp, sp, 12
-	ret
-	.cfi_endproc
-	.size	ffi_call_sysv, .-ffi_call_sysv
-
-
-/* Closure trampolines jump here after putting the C helper address
-   in r9 and the closure pointer in r10.  The user-supplied arguments
-   to the closure are in the normal places, in r4-r7 and on the
-   stack.  Push the register arguments on the stack too and then call the
-   C helper function to deal with them.  */
-   
-	.section	.text
-	.align	2
-	.global	ffi_closure_sysv
-	.type	ffi_closure_sysv, @function
-
-ffi_closure_sysv:
-	.cfi_startproc
-
-	/* Create the stack frame, pushing the register args on the stack
-	   just below the stack args.  This is the same trick illustrated
-	   in Figure 7-3 in the Nios II Processor Reference Handbook, used
-	   for variable arguments and structures passed by value.  */
-	addi	sp, sp, -20
-	.cfi_def_cfa_offset 20
-	stw	ra, 0(sp)
-	.cfi_offset 31, -20
-	stw	r4, 4(sp)
-	.cfi_offset 4, -16
-	stw	r5, 8(sp)
-	.cfi_offset 5, -12
-	stw	r6, 12(sp)
-	.cfi_offset 6, -8
-	stw	r7, 16(sp)
-	.cfi_offset 7, -4
-
-	/* Call the helper.
-	   r4 = pointer to arguments on stack
-	   r5 = closure pointer (loaded in r10 by the trampoline)
-	   r9 = address of helper function (loaded by trampoline) */
-	addi	r4, sp, 4
-	mov	r5, r10
-	callr	r9
-	
-	/* Pop the stack and return.  */
-	ldw	ra, 0(sp)
-	addi	sp, sp, 20
-	.cfi_def_cfa_offset -20
-	ret
-	.cfi_endproc
-	.size	ffi_closure_sysv, .-ffi_closure_sysv
-
-- 
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