1 files changed, 225 insertions, 0 deletions
diff --git a/src/powerpc/.svn/text-base/aix.S.svn-base b/src/powerpc/.svn/text-base/aix.S.svn-base
new file mode 100644
index 0000000..45502f7
--- /dev/null
+++ b/src/powerpc/.svn/text-base/aix.S.svn-base
@@ -0,0 +1,225 @@
+/* -----------------------------------------------------------------------
+   aix.S - Copyright (c) 2002 Free Software Foundation, Inc.
+   based on darwin.S by John Hornkvist
+
+   PowerPC Assembly glue.
+
+   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 AUTHOR 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.
+   ----------------------------------------------------------------------- */
+
+	.set r0,0
+	.set r1,1
+	.set r2,2
+	.set r3,3
+	.set r4,4
+	.set r5,5
+	.set r6,6
+	.set r7,7
+	.set r8,8
+	.set r9,9
+	.set r10,10
+	.set r11,11
+	.set r12,12
+	.set r13,13
+	.set r14,14
+	.set r15,15
+	.set r16,16
+	.set r17,17
+	.set r18,18
+	.set r19,19
+	.set r20,20
+	.set r21,21
+	.set r22,22
+	.set r23,23
+	.set r24,24
+	.set r25,25
+	.set r26,26
+	.set r27,27
+	.set r28,28
+	.set r29,29
+	.set r30,30
+	.set r31,31
+	.set f0,0
+	.set f1,1
+	.set f2,2
+	.set f3,3
+	.set f4,4
+	.set f5,5
+	.set f6,6
+	.set f7,7
+	.set f8,8
+	.set f9,9
+	.set f10,10
+	.set f11,11
+	.set f12,12
+	.set f13,13
+	.set f14,14
+	.set f15,15
+	.set f16,16
+	.set f17,17
+	.set f18,18
+	.set f19,19
+	.set f20,20
+	.set f21,21
+
+#define LIBFFI_ASM
+#include <fficonfig.h>
+#include <ffi.h>
+#define JUMPTARGET(name) name
+#define L(x) x
+	.file "aix.S"
+	.toc
+	.csect .text[PR]
+	.align 2
+.globl ffi_prep_args
+
+.csect .text[PR]
+	.align 2
+	.globl ffi_call_AIX
+	.globl .ffi_call_AIX
+.csect ffi_call_AIX[DS]
+ffi_call_AIX:
+	.long .ffi_call_AIX, TOC[tc0], 0
+	.csect .text[PR]
+.ffi_call_AIX:
+	mr      r12,r8 // We only need r12 until the call, so it doesn't have to be saved...
+	/* Save the old stack pointer as AP.  */
+	mr	r8,r1
+
+	/* Allocate the stack space we need.  */
+	stwux	r1,r1,r4
+
+	/* Save registers we use.  */
+	mflr	r9
+
+	stw	r28,-16(r8)
+	stw	r29,-12(r8)
+	stw	r30, -8(r8)
+	stw	r31, -4(r8)
+
+	stw	r9,  8(r8)
+	stw	r2, 20(r1)
+
+	/* Save arguments over call...  */
+	mr	r31,r5	/* flags, */
+	mr	r30,r6	/* rvalue, */
+	mr	r29,r7	/* function address, */
+	mr	r28,r8	/* our AP. */
+
+	/* Call ffi_prep_args.  */
+	mr	r4,r1
+	li	r9,0
+
+	lwz	r2,4(r12)
+	lwz	r12,0(r12)
+	mtctr	r12 // r12 holds address of _ffi_prep_args
+	bctrl
+	lwz     r2,20(r1)
+
+	/* Now do the call.  */
+	lwz	r12,0(r29)
+	/* Set up cr1 with bits 4-7 of the flags.  */
+	mtcrf	0x40,r31
+	stw	r2,20(r1)
+	mtctr	r12
+	lwz	r2,4(r29)
+	/* Load all those argument registers.  */
+	// We have set up a nice stack frame, just load it into registers.
+	lwz     r3, 20+(1*4)(r1)
+	lwz     r4, 20+(2*4)(r1)
+	lwz     r5, 20+(3*4)(r1)
+	lwz     r6, 20+(4*4)(r1)
+	nop
+	lwz     r7, 20+(5*4)(r1)
+	lwz     r8, 20+(6*4)(r1)
+	lwz     r9, 20+(7*4)(r1)
+	lwz     r10,20+(8*4)(r1)
+
+L1:
+	/* Load all the FP registers.  */
+	bf	6,L2 // 2f + 0x18
+	lfd	f1,-16-(13*8)(r28)
+	lfd	f2,-16-(12*8)(r28)
+	lfd	f3,-16-(11*8)(r28)
+	lfd	f4,-16-(10*8)(r28)
+	nop
+	lfd	f5,-16-(9*8)(r28)
+	lfd	f6,-16-(8*8)(r28)
+	lfd	f7,-16-(7*8)(r28)
+	lfd	f8,-16-(6*8)(r28)
+	nop
+	lfd     f9,-16-(5*8)(r28)
+	lfd     f10,-16-(4*8)(r28)
+	lfd     f11,-16-(3*8)(r28)
+	lfd     f12,-16-(2*8)(r28)
+	nop
+	lfd     f13,-16-(1*8)(r28)
+
+L2:
+	/* Make the call.  */
+	bctrl
+	lwz r2,20(r1)
+
+	/* Now, deal with the return value.  */
+	mtcrf	0x01,r31
+
+	bt	30,L(done_return_value)
+	bt	29,L(fp_return_value)
+	stw	r3,0(r30)
+	bf	28,L(done_return_value)
+	stw	r4,4(r30)
+
+	/* Fall through...  */
+
+L(done_return_value):
+	/* Restore the registers we used and return.  */
+	lwz	r9,   8(r28)
+	lwz	r31,  -4(r28)
+	mtlr	r9
+	lwz	r30, -8(r28)
+	lwz	r29,-12(r28)
+	lwz	r28,-16(r28)
+	lwz	r1,0(r1)
+	blr
+
+L(fp_return_value):
+	bf	28,L(float_return_value)
+	stfd	f1,0(r30)
+	b	L(done_return_value)
+L(float_return_value):
+	stfs	f1,0(r30)
+	b	L(done_return_value)
+	.long 0
+	.byte 0,0,0,1,128,4,0,0
+//END(ffi_call_AIX)
+
+.csect .text[PR]
+	.align 2
+	.globl ffi_call_DARWIN
+	.globl .ffi_call_DARWIN
+.csect ffi_call_DARWIN[DS]
+ffi_call_DARWIN:
+	.long .ffi_call_DARWIN, TOC[tc0], 0
+	.csect .text[PR]
+.ffi_call_DARWIN:
+	blr
+	.long 0
+	.byte 0,0,0,0,0,0,0,0
+//END(ffi_call_DARWIN)