1 /* -----------------------------------------------------------------------
2 sysv.h - Copyright (c) 2003 Jakub Jelinek <jakub@redhat.com>
3 Copyright (c) 2008 Red Hat, Inc.
5 PowerPC64 Assembly glue.
7 Permission is hereby granted, free of charge, to any person obtaining
8 a copy of this software and associated documentation files (the
9 ``Software''), to deal in the Software without restriction, including
10 without limitation the rights to use, copy, modify, merge, publish,
11 distribute, sublicense, and/or sell copies of the Software, and to
12 permit persons to whom the Software is furnished to do so, subject to
13 the following conditions:
15 The above copyright notice and this permission notice shall be included
16 in all copies or substantial portions of the Software.
18 THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
21 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
22 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
23 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
25 DEALINGS IN THE SOFTWARE.
26 ----------------------------------------------------------------------- */
29 #include <fficonfig.h>
33 .hidden ffi_call_LINUX64, .ffi_call_LINUX64
34 .globl ffi_call_LINUX64, .ffi_call_LINUX64
38 .quad .ffi_call_LINUX64,.TOC.@tocbase,0
39 .size ffi_call_LINUX64,24
40 .type .ffi_call_LINUX64,@function
51 mr %r28, %r1 /* our AP. */
54 mr %r31, %r5 /* flags, */
55 mr %r30, %r6 /* rvalue, */
56 mr %r29, %r7 /* function address. */
59 /* Call ffi_prep_args64. */
67 /* Now do the call. */
68 /* Set up cr1 with bits 4-7 of the flags. */
71 /* Get the address to call into CTR. */
73 /* Load all those argument registers. */
74 ld %r3, -32-(8*8)(%r28)
75 ld %r4, -32-(7*8)(%r28)
76 ld %r5, -32-(6*8)(%r28)
77 ld %r6, -32-(5*8)(%r28)
79 ld %r7, -32-(4*8)(%r28)
80 ld %r8, -32-(3*8)(%r28)
81 ld %r9, -32-(2*8)(%r28)
82 ld %r10, -32-(1*8)(%r28)
85 /* Load all the FP registers. */
87 lfd %f1, -32-(21*8)(%r28)
88 lfd %f2, -32-(20*8)(%r28)
89 lfd %f3, -32-(19*8)(%r28)
90 lfd %f4, -32-(18*8)(%r28)
91 lfd %f5, -32-(17*8)(%r28)
92 lfd %f6, -32-(16*8)(%r28)
93 lfd %f7, -32-(15*8)(%r28)
94 lfd %f8, -32-(14*8)(%r28)
95 lfd %f9, -32-(13*8)(%r28)
96 lfd %f10, -32-(12*8)(%r28)
97 lfd %f11, -32-(11*8)(%r28)
98 lfd %f12, -32-(10*8)(%r28)
99 lfd %f13, -32-(9*8)(%r28)
105 /* This must follow the call immediately, the unwinder
106 uses this to find out if r2 has been saved or not. */
109 /* Now, deal with the return value. */
111 bt- 30, .Ldone_return_value
112 bt- 29, .Lfp_return_value
114 /* Fall through... */
117 /* Restore the registers we used and return. */
128 bf 28, .Lfloat_return_value
130 mtcrf 0x02, %r31 /* cr6 */
131 bf 27, .Ldone_return_value
133 b .Ldone_return_value
134 .Lfloat_return_value:
136 b .Ldone_return_value
139 .byte 0,12,0,1,128,4,0,0
140 .size .ffi_call_LINUX64,.-.ffi_call_LINUX64
142 .section .eh_frame,EH_FRAME_FLAGS,@progbits
144 .4byte .LECIE1-.LSCIE1 # Length of Common Information Entry
146 .4byte 0x0 # CIE Identifier Tag
147 .byte 0x1 # CIE Version
148 .ascii "zR\0" # CIE Augmentation
149 .uleb128 0x1 # CIE Code Alignment Factor
150 .sleb128 -8 # CIE Data Alignment Factor
151 .byte 0x41 # CIE RA Column
152 .uleb128 0x1 # Augmentation size
153 .byte 0x14 # FDE Encoding (pcrel udata8)
154 .byte 0xc # DW_CFA_def_cfa
160 .4byte .LEFDE1-.LASFDE1 # FDE Length
162 .4byte .LASFDE1-.Lframe1 # FDE CIE offset
163 .8byte .LFB1-. # FDE initial location
164 .8byte .LFE1-.LFB1 # FDE address range
165 .uleb128 0x0 # Augmentation size
166 .byte 0x2 # DW_CFA_advance_loc1
168 .byte 0xd # DW_CFA_def_cfa_register
170 .byte 0x11 # DW_CFA_offset_extended_sf
173 .byte 0x9f # DW_CFA_offset, column 0x1f
175 .byte 0x9e # DW_CFA_offset, column 0x1e
177 .byte 0x9d # DW_CFA_offset, column 0x1d
179 .byte 0x9c # DW_CFA_offset, column 0x1c
185 #if defined __ELF__ && defined __linux__
186 .section .note.GNU-stack,"",@progbits