1 /* -----------------------------------------------------------------------
2 v8.S - Copyright (c) 1996, 1997, 2003, 2004 Red Hat, Inc.
4 SPARC Foreign Function Interface
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 CYGNUS SOLUTIONS 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>
30 #define STACKFRAME 96 /* Minimum stack framesize for SPARC */
31 #define ARGS (64+4) /* Offset of register area in frame */
41 save %sp, -STACKFRAME, %sp
44 sub %sp, %i2, %sp ! alloca() space in stack for frame to set up
45 add %sp, STACKFRAME, %l0 ! %l0 has start of
48 mov %l0, %o0 ! call routine to set up frame
50 mov %i1, %o1 ! (delay)
52 ld [%l0+ARGS], %o0 ! call foreign function
59 mov %l0, %sp ! (delay) switch to frame
60 nop ! STRUCT returning functions skip 12 instead of 8 bytes
62 ! If the return value pointer is NULL, assume no return value.
69 st %o0, [%i4] ! (delay)
71 cmp %i3, FFI_TYPE_FLOAT
73 st %f0, [%i4+0] ! (delay)
75 cmp %i3, FFI_TYPE_SINT64
78 cmp %i3, FFI_TYPE_DOUBLE
96 .size ffi_call_v8,.ffi_call_v8_end-ffi_call_v8
100 #define STACKFRAME 104 /* 16*4 register window +
102 6*4 args backing store +
105 /* ffi_closure_v8(...)
107 Receives the closure argument in %g2. */
111 .globl ffi_closure_v8
114 #ifdef HAVE_AS_REGISTER_PSEUDO_OP
115 .register %g2, #scratch
118 save %sp, -STACKFRAME, %sp
121 ! Store all of the potential argument registers in va_list format.
129 ! Call ffi_closure_sparc_inner to do the bulk of the work.
132 call ffi_closure_sparc_inner_v8
135 ! Load up the return value in the proper type.
136 ! See ffi_prep_cif_machdep for the list of cases.
137 cmp %o0, FFI_TYPE_VOID
140 cmp %o0, FFI_TYPE_INT
143 cmp %o0, FFI_TYPE_FLOAT
147 cmp %o0, FFI_TYPE_DOUBLE
151 #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
152 cmp %o0, FFI_TYPE_LONGDOUBLE
156 cmp %o0, FFI_TYPE_STRUCT
175 .size ffi_closure_v8,.ffi_closure_v8_end-ffi_closure_v8
180 #define uanword uaxword
184 #define uanword uaword
187 #ifdef HAVE_RO_EH_FRAME
188 .section ".eh_frame",#alloc
190 .section ".eh_frame",#alloc,#write
193 .uaword .LLECIE1-.LLSCIE1 ! Length of Common Information Entry
195 .uaword 0x0 ! CIE Identifier Tag
196 .byte 0x1 ! CIE Version
197 .ascii "zR\0" ! CIE Augmentation
198 .byte 0x1 ! uleb128 0x1; CIE Code Alignment Factor
199 .byte 0x80-WS ! sleb128 -WS; CIE Data Alignment Factor
200 .byte 0xf ! CIE RA Column
201 .byte 0x1 ! uleb128 0x1; Augmentation size
202 #ifdef HAVE_AS_SPARC_UA_PCREL
203 .byte 0x1b ! FDE Encoding (pcrel sdata4)
205 .byte 0x50 ! FDE Encoding (aligned absolute)
207 .byte 0xc ! DW_CFA_def_cfa
208 .byte 0xe ! uleb128 0xe
209 .byte 0x0 ! uleb128 0x0
213 .uaword .LLEFDE1-.LLASFDE1 ! FDE Length
215 .uaword .LLASFDE1-.LLframe1 ! FDE CIE offset
216 #ifdef HAVE_AS_SPARC_UA_PCREL
217 .uaword %r_disp32(.LLFB1)
218 .uaword .LLFE1-.LLFB1 ! FDE address range
222 .uanword .LLFE1-.LLFB1 ! FDE address range
224 .byte 0x0 ! uleb128 0x0; Augmentation size
225 .byte 0x4 ! DW_CFA_advance_loc4
226 .uaword .LLCFI0-.LLFB1
227 .byte 0xd ! DW_CFA_def_cfa_register
228 .byte 0x1e ! uleb128 0x1e
229 .byte 0x2d ! DW_CFA_GNU_window_save
230 .byte 0x9 ! DW_CFA_register
231 .byte 0xf ! uleb128 0xf
232 .byte 0x1f ! uleb128 0x1f
236 .uaword .LLEFDE2-.LLASFDE2 ! FDE Length
238 .uaword .LLASFDE2-.LLframe1 ! FDE CIE offset
239 #ifdef HAVE_AS_SPARC_UA_PCREL
240 .uaword %r_disp32(.LLFB2)
241 .uaword .LLFE2-.LLFB2 ! FDE address range
245 .uanword .LLFE2-.LLFB2 ! FDE address range
247 .byte 0x0 ! uleb128 0x0; Augmentation size
248 .byte 0x4 ! DW_CFA_advance_loc4
249 .uaword .LLCFI1-.LLFB2
250 .byte 0xd ! DW_CFA_def_cfa_register
251 .byte 0x1e ! uleb128 0x1e
252 .byte 0x2d ! DW_CFA_GNU_window_save
253 .byte 0x9 ! DW_CFA_register
254 .byte 0xf ! uleb128 0xf
255 .byte 0x1f ! uleb128 0x1f