1 /* -----------------------------------------------------------------------
2 sysv.h - Copyright (c) 2003 Jakub Jelinek <jakub@redhat.com>
4 PowerPC64 Assembly glue.
6 Permission is hereby granted, free of charge, to any person obtaining
7 a copy of this software and associated documentation files (the
8 ``Software''), to deal in the Software without restriction, including
9 without limitation the rights to use, copy, modify, merge, publish,
10 distribute, sublicense, and/or sell copies of the Software, and to
11 permit persons to whom the Software is furnished to do so, subject to
12 the following conditions:
14 The above copyright notice and this permission notice shall be included
15 in all copies or substantial portions of the Software.
17 THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 OTHER DEALINGS IN THE SOFTWARE.
24 ----------------------------------------------------------------------- */
27 #include <fficonfig.h>
31 .hidden ffi_call_LINUX64, .ffi_call_LINUX64
32 .globl ffi_call_LINUX64, .ffi_call_LINUX64
36 .quad .ffi_call_LINUX64,.TOC.@tocbase,0
37 .size ffi_call_LINUX64,24
38 .type .ffi_call_LINUX64,@function
49 mr %r28, %r1 /* our AP. */
52 mr %r31, %r5 /* flags, */
53 mr %r30, %r6 /* rvalue, */
54 mr %r29, %r7 /* function address. */
57 /* Call ffi_prep_args64. */
65 /* Now do the call. */
66 /* Set up cr1 with bits 4-7 of the flags. */
69 /* Get the address to call into CTR. */
71 /* Load all those argument registers. */
72 ld %r3, -32-(8*8)(%r28)
73 ld %r4, -32-(7*8)(%r28)
74 ld %r5, -32-(6*8)(%r28)
75 ld %r6, -32-(5*8)(%r28)
77 ld %r7, -32-(4*8)(%r28)
78 ld %r8, -32-(3*8)(%r28)
79 ld %r9, -32-(2*8)(%r28)
80 ld %r10, -32-(1*8)(%r28)
83 /* Load all the FP registers. */
85 lfd %f1, -32-(21*8)(%r28)
86 lfd %f2, -32-(20*8)(%r28)
87 lfd %f3, -32-(19*8)(%r28)
88 lfd %f4, -32-(18*8)(%r28)
89 lfd %f5, -32-(17*8)(%r28)
90 lfd %f6, -32-(16*8)(%r28)
91 lfd %f7, -32-(15*8)(%r28)
92 lfd %f8, -32-(14*8)(%r28)
93 lfd %f9, -32-(13*8)(%r28)
94 lfd %f10, -32-(12*8)(%r28)
95 lfd %f11, -32-(11*8)(%r28)
96 lfd %f12, -32-(10*8)(%r28)
97 lfd %f13, -32-(9*8)(%r28)
103 /* Now, deal with the return value. */
105 bt- 30, .Ldone_return_value
106 bt- 29, .Lfp_return_value
108 /* Fall through... */
111 /* Restore the registers we used and return. */
123 bf 28, .Lfloat_return_value
125 stfd %f2, 8(%r30) /* It might be a long double */
126 b .Ldone_return_value
127 .Lfloat_return_value:
129 b .Ldone_return_value
132 .byte 0,12,0,1,128,4,0,0
133 .size .ffi_call_LINUX64,.-.ffi_call_LINUX64
135 .section .eh_frame,EH_FRAME_FLAGS,@progbits
137 .4byte .LECIE1-.LSCIE1 # Length of Common Information Entry
139 .4byte 0x0 # CIE Identifier Tag
140 .byte 0x1 # CIE Version
141 .ascii "zR\0" # CIE Augmentation
142 .uleb128 0x1 # CIE Code Alignment Factor
143 .sleb128 -8 # CIE Data Alignment Factor
144 .byte 0x41 # CIE RA Column
145 .uleb128 0x1 # Augmentation size
146 .byte 0x14 # FDE Encoding (pcrel udata8)
147 .byte 0xc # DW_CFA_def_cfa
153 .4byte .LEFDE1-.LASFDE1 # FDE Length
155 .4byte .LASFDE1-.Lframe1 # FDE CIE offset
156 .8byte .LFB1-. # FDE initial location
157 .8byte .LFE1-.LFB1 # FDE address range
158 .uleb128 0x0 # Augmentation size
159 .byte 0x2 # DW_CFA_advance_loc1
161 .byte 0xd # DW_CFA_def_cfa_register
163 .byte 0x11 # DW_CFA_offset_extended_sf
166 .byte 0x9f # DW_CFA_offset, column 0x1f
168 .byte 0x9e # DW_CFA_offset, column 0x1e
170 .byte 0x9d # DW_CFA_offset, column 0x1d
172 .byte 0x9c # DW_CFA_offset, column 0x1c