]> git.ipfire.org Git - thirdparty/gcc.git/blame - libffi/src/sparc/v9.S
Merge upstream libffi
[thirdparty/gcc.git] / libffi / src / sparc / v9.S
CommitLineData
3791773c 1/* -----------------------------------------------------------------------
7446546a 2 v9.S - Copyright (c) 2000, 2003, 2004, 2008 Red Hat, Inc.
3791773c 3
0ce78f01 4 SPARC 64-bit Foreign Function Interface
3791773c 5
3791773c
JJ
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:
13
14 The above copyright notice and this permission notice shall be included
15 in all copies or substantial portions of the Software.
16
5f933ef0
AH
17 THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
18 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
21 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
22 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24 DEALINGS IN THE SOFTWARE.
3791773c
JJ
25 ----------------------------------------------------------------------- */
26
27#define LIBFFI_ASM
1450eb7a 28#include <fficonfig.h>
3791773c
JJ
29#include <ffi.h>
30
31#ifdef SPARC64
32/* Only compile this in for 64bit builds, because otherwise the object file
33 will have inproper architecture due to used instructions. */
34
34fa7690 35#define STACKFRAME 128 /* Minimum stack framesize for SPARC */
3791773c
JJ
36#define STACK_BIAS 2047
37#define ARGS (128) /* Offset of register area in frame */
38
39.text
40 .align 8
0ce78f01
EB
41.globl ffi_call_v9
42.globl _ffi_call_v9
3791773c 43
0ce78f01
EB
44ffi_call_v9:
45_ffi_call_v9:
0c0b87ad 46.LLFB1:
3791773c 47 save %sp, -STACKFRAME, %sp
0c0b87ad 48.LLCFI0:
3791773c
JJ
49
50 sub %sp, %i2, %sp ! alloca() space in stack for frame to set up
51 add %sp, STACKFRAME+STACK_BIAS, %l0 ! %l0 has start of
52 ! frame to set up
53
54 mov %l0, %o0 ! call routine to set up frame
55 call %i0
56 mov %i1, %o1 ! (delay)
57 brz,pt %o0, 1f
58 ldx [%l0+ARGS], %o0 ! call foreign function
59
60 ldd [%l0+ARGS], %f0
61 ldd [%l0+ARGS+8], %f2
62 ldd [%l0+ARGS+16], %f4
63 ldd [%l0+ARGS+24], %f6
64 ldd [%l0+ARGS+32], %f8
65 ldd [%l0+ARGS+40], %f10
66 ldd [%l0+ARGS+48], %f12
67 ldd [%l0+ARGS+56], %f14
68 ldd [%l0+ARGS+64], %f16
69 ldd [%l0+ARGS+72], %f18
70 ldd [%l0+ARGS+80], %f20
71 ldd [%l0+ARGS+88], %f22
72 ldd [%l0+ARGS+96], %f24
73 ldd [%l0+ARGS+104], %f26
74 ldd [%l0+ARGS+112], %f28
75 ldd [%l0+ARGS+120], %f30
76
771: ldx [%l0+ARGS+8], %o1
78 ldx [%l0+ARGS+16], %o2
79 ldx [%l0+ARGS+24], %o3
80 ldx [%l0+ARGS+32], %o4
81 ldx [%l0+ARGS+40], %o5
82 call %i5
83 sub %l0, STACK_BIAS, %sp ! (delay) switch to frame
84
85 ! If the return value pointer is NULL, assume no return value.
86 brz,pn %i4, done
87 nop
88
89 cmp %i3, FFI_TYPE_INT
90 be,a,pt %icc, done
0ce78f01 91 stx %o0, [%i4+0] ! (delay)
3791773c
JJ
92
93 cmp %i3, FFI_TYPE_FLOAT
94 be,a,pn %icc, done
95 st %f0, [%i4+0] ! (delay)
96
97 cmp %i3, FFI_TYPE_DOUBLE
98 be,a,pn %icc, done
99 std %f0, [%i4+0] ! (delay)
100
101 cmp %i3, FFI_TYPE_STRUCT
102 be,pn %icc, dostruct
103
c75c7793 104 cmp %i3, FFI_TYPE_LONGDOUBLE
3791773c
JJ
105 bne,pt %icc, done
106 nop
107 std %f0, [%i4+0]
108 std %f2, [%i4+8]
109
110done: ret
111 restore
112
113dostruct:
114 /* This will not work correctly for unions. */
115 stx %o0, [%i4+0]
116 stx %o1, [%i4+8]
117 stx %o2, [%i4+16]
118 stx %o3, [%i4+24]
119 std %f0, [%i4+32]
120 std %f2, [%i4+40]
121 std %f4, [%i4+48]
122 std %f6, [%i4+56]
123 ret
124 restore
0c0b87ad 125.LLFE1:
3791773c 126
0ce78f01
EB
127.ffi_call_v9_end:
128 .size ffi_call_v9,.ffi_call_v9_end-ffi_call_v9
0c0b87ad 129
c75c7793 130
0ce78f01
EB
131#undef STACKFRAME
132#define STACKFRAME 336 /* 16*8 register window +
c75c7793 133 6*8 args backing store +
0ce78f01 134 20*8 locals */
c75c7793
JS
135#define FP %fp+STACK_BIAS
136
137/* ffi_closure_v9(...)
138
139 Receives the closure argument in %g1. */
140
141 .text
142 .align 8
143 .globl ffi_closure_v9
144
145ffi_closure_v9:
146.LLFB2:
147 save %sp, -STACKFRAME, %sp
148.LLCFI1:
149
150 ! Store all of the potential argument registers in va_list format.
151 stx %i0, [FP+128+0]
152 stx %i1, [FP+128+8]
153 stx %i2, [FP+128+16]
154 stx %i3, [FP+128+24]
155 stx %i4, [FP+128+32]
156 stx %i5, [FP+128+40]
157
158 ! Store possible floating point argument registers too.
c1516eae
AT
159 std %f0, [FP-128]
160 std %f2, [FP-120]
161 std %f4, [FP-112]
162 std %f6, [FP-104]
163 std %f8, [FP-96]
164 std %f10, [FP-88]
165 std %f12, [FP-80]
166 std %f14, [FP-72]
167 std %f16, [FP-64]
168 std %f18, [FP-56]
169 std %f20, [FP-48]
170 std %f22, [FP-40]
171 std %f24, [FP-32]
172 std %f26, [FP-24]
173 std %f28, [FP-16]
174 std %f30, [FP-8]
c75c7793
JS
175
176 ! Call ffi_closure_sparc_inner to do the bulk of the work.
177 mov %g1, %o0
0ce78f01 178 add %fp, STACK_BIAS-160, %o1
c75c7793 179 add %fp, STACK_BIAS+128, %o2
0ce78f01
EB
180 call ffi_closure_sparc_inner_v9
181 add %fp, STACK_BIAS-128, %o3
c75c7793
JS
182
183 ! Load up the return value in the proper type.
0ce78f01 184 ! See ffi_prep_cif_machdep for the list of cases.
c75c7793
JS
185 cmp %o0, FFI_TYPE_VOID
186 be,pn %icc, done1
187
0ce78f01
EB
188 cmp %o0, FFI_TYPE_INT
189 be,pn %icc, integer
190
c75c7793
JS
191 cmp %o0, FFI_TYPE_FLOAT
192 be,a,pn %icc, done1
0ce78f01 193 ld [FP-160], %f0
c75c7793
JS
194
195 cmp %o0, FFI_TYPE_DOUBLE
196 be,a,pn %icc, done1
0ce78f01 197 ldd [FP-160], %f0
c75c7793 198
0ce78f01 199#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
c75c7793
JS
200 cmp %o0, FFI_TYPE_LONGDOUBLE
201 be,a,pn %icc, longdouble1
0ce78f01
EB
202 ldd [FP-160], %f0
203#endif
c75c7793 204
0ce78f01
EB
205 ! FFI_TYPE_STRUCT
206 ldx [FP-152], %i1
207 ldx [FP-144], %i2
208 ldx [FP-136], %i3
209 ldd [FP-160], %f0
210 ldd [FP-152], %f2
211 ldd [FP-144], %f4
212 ldd [FP-136], %f6
c75c7793 213
0ce78f01
EB
214integer:
215 ldx [FP-160], %i0
c75c7793
JS
216
217done1:
218 ret
219 restore
220
0ce78f01 221#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
c75c7793 222longdouble1:
0ce78f01 223 ldd [FP-152], %f2
c75c7793
JS
224 ret
225 restore
0ce78f01 226#endif
c75c7793
JS
227.LLFE2:
228
229.ffi_closure_v9_end:
230 .size ffi_closure_v9,.ffi_closure_v9_end-ffi_closure_v9
231
a733b15e
JJ
232#ifdef HAVE_RO_EH_FRAME
233 .section ".eh_frame",#alloc
234#else
0c0b87ad 235 .section ".eh_frame",#alloc,#write
a733b15e 236#endif
0c0b87ad
JS
237.LLframe1:
238 .uaword .LLECIE1-.LLSCIE1 ! Length of Common Information Entry
239.LLSCIE1:
240 .uaword 0x0 ! CIE Identifier Tag
241 .byte 0x1 ! CIE Version
242 .ascii "zR\0" ! CIE Augmentation
243 .byte 0x1 ! uleb128 0x1; CIE Code Alignment Factor
244 .byte 0x78 ! sleb128 -8; CIE Data Alignment Factor
245 .byte 0xf ! CIE RA Column
246 .byte 0x1 ! uleb128 0x1; Augmentation size
5d84cf0b
JJ
247#ifdef HAVE_AS_SPARC_UA_PCREL
248 .byte 0x1b ! FDE Encoding (pcrel sdata4)
249#else
0c0b87ad 250 .byte 0x50 ! FDE Encoding (aligned absolute)
5d84cf0b 251#endif
0c0b87ad
JS
252 .byte 0xc ! DW_CFA_def_cfa
253 .byte 0xe ! uleb128 0xe
254 .byte 0xff,0xf ! uleb128 0x7ff
255 .align 8
256.LLECIE1:
257.LLSFDE1:
258 .uaword .LLEFDE1-.LLASFDE1 ! FDE Length
259.LLASFDE1:
260 .uaword .LLASFDE1-.LLframe1 ! FDE CIE offset
5d84cf0b
JJ
261#ifdef HAVE_AS_SPARC_UA_PCREL
262 .uaword %r_disp32(.LLFB1)
263 .uaword .LLFE1-.LLFB1 ! FDE address range
264#else
0c0b87ad
JS
265 .align 8
266 .xword .LLFB1
267 .uaxword .LLFE1-.LLFB1 ! FDE address range
5d84cf0b 268#endif
0c0b87ad
JS
269 .byte 0x0 ! uleb128 0x0; Augmentation size
270 .byte 0x4 ! DW_CFA_advance_loc4
271 .uaword .LLCFI0-.LLFB1
272 .byte 0xd ! DW_CFA_def_cfa_register
273 .byte 0x1e ! uleb128 0x1e
274 .byte 0x2d ! DW_CFA_GNU_window_save
275 .byte 0x9 ! DW_CFA_register
276 .byte 0xf ! uleb128 0xf
277 .byte 0x1f ! uleb128 0x1f
278 .align 8
279.LLEFDE1:
c75c7793
JS
280.LLSFDE2:
281 .uaword .LLEFDE2-.LLASFDE2 ! FDE Length
282.LLASFDE2:
283 .uaword .LLASFDE2-.LLframe1 ! FDE CIE offset
284#ifdef HAVE_AS_SPARC_UA_PCREL
285 .uaword %r_disp32(.LLFB2)
286 .uaword .LLFE2-.LLFB2 ! FDE address range
287#else
288 .align 8
289 .xword .LLFB2
290 .uaxword .LLFE2-.LLFB2 ! FDE address range
291#endif
292 .byte 0x0 ! uleb128 0x0; Augmentation size
293 .byte 0x4 ! DW_CFA_advance_loc4
294 .uaword .LLCFI1-.LLFB2
295 .byte 0xd ! DW_CFA_def_cfa_register
296 .byte 0x1e ! uleb128 0x1e
297 .byte 0x2d ! DW_CFA_GNU_window_save
298 .byte 0x9 ! DW_CFA_register
299 .byte 0xf ! uleb128 0xf
300 .byte 0x1f ! uleb128 0x1f
301 .align 8
302.LLEFDE2:
3791773c 303#endif
feb51530
MK
304
305#ifdef __linux__
306 .section .note.GNU-stack,"",@progbits
307#endif