1 /* -----------------------------------------------------------------------
2 freebsd.S - Copyright (c) 1996, 1998, 2001, 2002, 2003, 2005 Red Hat, Inc.
3 Copyright (c) 2008 Björn König
5 X86 Foreign Function Interface for FreeBSD
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 ----------------------------------------------------------------------- */
31 #include <fficonfig.h>
40 .type ffi_call_SYSV,@function
48 /* Make room for all of the new args. */
54 /* Place all of the ffi_prep_args in position */
59 /* Return stack to previous state and call the function */
64 /* Load %ecx with the return type code */
67 /* Protect %esi. We're going to pop it in the epilogue. */
70 /* If the return value pointer is NULL, assume no return value. */
74 /* Even if there is no space for the return value, we are
75 obliged to handle floating-point values. */
76 cmpl $FFI_TYPE_FLOAT,%ecx
86 .long noretval-.Lstore_table /* FFI_TYPE_VOID */
87 .long retint-.Lstore_table /* FFI_TYPE_INT */
88 .long retfloat-.Lstore_table /* FFI_TYPE_FLOAT */
89 .long retdouble-.Lstore_table /* FFI_TYPE_DOUBLE */
90 .long retlongdouble-.Lstore_table /* FFI_TYPE_LONGDOUBLE */
91 .long retuint8-.Lstore_table /* FFI_TYPE_UINT8 */
92 .long retsint8-.Lstore_table /* FFI_TYPE_SINT8 */
93 .long retuint16-.Lstore_table /* FFI_TYPE_UINT16 */
94 .long retsint16-.Lstore_table /* FFI_TYPE_SINT16 */
95 .long retint-.Lstore_table /* FFI_TYPE_UINT32 */
96 .long retint-.Lstore_table /* FFI_TYPE_SINT32 */
97 .long retint64-.Lstore_table /* FFI_TYPE_UINT64 */
98 .long retint64-.Lstore_table /* FFI_TYPE_SINT64 */
99 .long retstruct-.Lstore_table /* FFI_TYPE_STRUCT */
100 .long retint-.Lstore_table /* FFI_TYPE_POINTER */
101 .long retstruct1b-.Lstore_table /* FFI_TYPE_SMALL_STRUCT_1B */
102 .long retstruct2b-.Lstore_table /* FFI_TYPE_SMALL_STRUCT_2B */
106 add (%esi, %ecx, 4), %esi
109 /* Sign/zero extend as appropriate. */
127 /* Load %ecx with the pointer to storage for the return value */
133 /* Load %ecx with the pointer to storage for the return value */
139 /* Load %ecx with the pointer to storage for the return value */
145 /* Load %ecx with the pointer to storage for the return value */
152 /* Load %ecx with the pointer to storage for the return value */
158 /* Load %ecx with the pointer to storage for the return value */
164 /* Load %ecx with the pointer to storage for the return value */
179 .size ffi_call_SYSV,.ffi_call_SYSV_end-ffi_call_SYSV
182 FFI_HIDDEN (ffi_closure_SYSV)
183 .globl ffi_closure_SYSV
184 .type ffi_closure_SYSV, @function
194 movl %edx, -12(%ebp) /* resp */
196 movl %edx, 4(%esp) /* args = __builtin_dwarf_cfa () */
198 movl %edx, (%esp) /* &resp */
199 #if defined HAVE_HIDDEN_VISIBILITY_ATTRIBUTE || !defined __PIC__
200 call ffi_closure_SYSV_inner
206 addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx
207 call ffi_closure_SYSV_inner@PLT
211 cmpl $FFI_TYPE_INT, %eax
214 /* Handle FFI_TYPE_UINT8, FFI_TYPE_SINT8, FFI_TYPE_UINT16,
215 FFI_TYPE_SINT16, FFI_TYPE_UINT32, FFI_TYPE_SINT32. */
216 cmpl $FFI_TYPE_UINT64, %eax
218 cmpl $FFI_TYPE_UINT8, %eax
221 0: cmpl $FFI_TYPE_FLOAT, %eax
223 cmpl $FFI_TYPE_DOUBLE, %eax
225 cmpl $FFI_TYPE_LONGDOUBLE, %eax
227 cmpl $FFI_TYPE_SINT64, %eax
229 cmpl $FFI_TYPE_SMALL_STRUCT_1B, %eax
231 cmpl $FFI_TYPE_SMALL_STRUCT_2B, %eax
233 cmpl $FFI_TYPE_STRUCT, %eax
266 .size ffi_closure_SYSV, .-ffi_closure_SYSV
270 #define RAW_CLOSURE_CIF_OFFSET ((FFI_TRAMPOLINE_SIZE + 3) & ~3)
271 #define RAW_CLOSURE_FUN_OFFSET (RAW_CLOSURE_CIF_OFFSET + 4)
272 #define RAW_CLOSURE_USER_DATA_OFFSET (RAW_CLOSURE_FUN_OFFSET + 4)
273 #define CIF_FLAGS_OFFSET 20
276 FFI_HIDDEN (ffi_closure_raw_SYSV)
277 .globl ffi_closure_raw_SYSV
278 .type ffi_closure_raw_SYSV, @function
280 ffi_closure_raw_SYSV:
289 movl RAW_CLOSURE_CIF_OFFSET(%eax), %esi /* closure->cif */
290 movl RAW_CLOSURE_USER_DATA_OFFSET(%eax), %edx /* closure->user_data */
291 movl %edx, 12(%esp) /* user_data */
292 leal 8(%ebp), %edx /* __builtin_dwarf_cfa () */
293 movl %edx, 8(%esp) /* raw_args */
295 movl %edx, 4(%esp) /* &res */
296 movl %esi, (%esp) /* cif */
297 call *RAW_CLOSURE_FUN_OFFSET(%eax) /* closure->fun */
298 movl CIF_FLAGS_OFFSET(%esi), %eax /* rtype */
299 cmpl $FFI_TYPE_INT, %eax
302 /* Handle FFI_TYPE_UINT8, FFI_TYPE_SINT8, FFI_TYPE_UINT16,
303 FFI_TYPE_SINT16, FFI_TYPE_UINT32, FFI_TYPE_SINT32. */
304 cmpl $FFI_TYPE_UINT64, %eax
306 cmpl $FFI_TYPE_UINT8, %eax
309 cmpl $FFI_TYPE_FLOAT, %eax
311 cmpl $FFI_TYPE_DOUBLE, %eax
313 cmpl $FFI_TYPE_LONGDOUBLE, %eax
315 cmpl $FFI_TYPE_SINT64, %eax
339 .size ffi_closure_raw_SYSV, .-ffi_closure_raw_SYSV
342 .section .eh_frame,EH_FRAME_FLAGS,@progbits
344 .long .LECIE1-.LSCIE1 /* Length of Common Information Entry */
346 .long 0x0 /* CIE Identifier Tag */
347 .byte 0x1 /* CIE Version */
349 .ascii "zR\0" /* CIE Augmentation */
351 .ascii "\0" /* CIE Augmentation */
353 .byte 0x1 /* .uleb128 0x1; CIE Code Alignment Factor */
354 .byte 0x7c /* .sleb128 -4; CIE Data Alignment Factor */
355 .byte 0x8 /* CIE RA Column */
357 .byte 0x1 /* .uleb128 0x1; Augmentation size */
358 .byte 0x1b /* FDE Encoding (pcrel sdata4) */
360 .byte 0xc /* DW_CFA_def_cfa */
361 .byte 0x4 /* .uleb128 0x4 */
362 .byte 0x4 /* .uleb128 0x4 */
363 .byte 0x88 /* DW_CFA_offset, column 0x8 */
364 .byte 0x1 /* .uleb128 0x1 */
368 .long .LEFDE1-.LASFDE1 /* FDE Length */
370 .long .LASFDE1-.Lframe1 /* FDE CIE offset */
372 .long .LFB1-. /* FDE initial location */
374 .long .LFB1 /* FDE initial location */
376 .long .LFE1-.LFB1 /* FDE address range */
378 .byte 0x0 /* .uleb128 0x0; Augmentation size */
380 .byte 0x4 /* DW_CFA_advance_loc4 */
382 .byte 0xe /* DW_CFA_def_cfa_offset */
383 .byte 0x8 /* .uleb128 0x8 */
384 .byte 0x85 /* DW_CFA_offset, column 0x5 */
385 .byte 0x2 /* .uleb128 0x2 */
386 .byte 0x4 /* DW_CFA_advance_loc4 */
388 .byte 0xd /* DW_CFA_def_cfa_register */
389 .byte 0x5 /* .uleb128 0x5 */
393 .long .LEFDE2-.LASFDE2 /* FDE Length */
395 .long .LASFDE2-.Lframe1 /* FDE CIE offset */
397 .long .LFB2-. /* FDE initial location */
401 .long .LFE2-.LFB2 /* FDE address range */
403 .byte 0x0 /* .uleb128 0x0; Augmentation size */
405 .byte 0x4 /* DW_CFA_advance_loc4 */
407 .byte 0xe /* DW_CFA_def_cfa_offset */
408 .byte 0x8 /* .uleb128 0x8 */
409 .byte 0x85 /* DW_CFA_offset, column 0x5 */
410 .byte 0x2 /* .uleb128 0x2 */
411 .byte 0x4 /* DW_CFA_advance_loc4 */
413 .byte 0xd /* DW_CFA_def_cfa_register */
414 .byte 0x5 /* .uleb128 0x5 */
415 #if !defined HAVE_HIDDEN_VISIBILITY_ATTRIBUTE && defined __PIC__
416 .byte 0x4 /* DW_CFA_advance_loc4 */
418 .byte 0x83 /* DW_CFA_offset, column 0x3 */
419 .byte 0xa /* .uleb128 0xa */
427 .long .LEFDE3-.LASFDE3 /* FDE Length */
429 .long .LASFDE3-.Lframe1 /* FDE CIE offset */
431 .long .LFB3-. /* FDE initial location */
435 .long .LFE3-.LFB3 /* FDE address range */
437 .byte 0x0 /* .uleb128 0x0; Augmentation size */
439 .byte 0x4 /* DW_CFA_advance_loc4 */
441 .byte 0xe /* DW_CFA_def_cfa_offset */
442 .byte 0x8 /* .uleb128 0x8 */
443 .byte 0x85 /* DW_CFA_offset, column 0x5 */
444 .byte 0x2 /* .uleb128 0x2 */
445 .byte 0x4 /* DW_CFA_advance_loc4 */
447 .byte 0xd /* DW_CFA_def_cfa_register */
448 .byte 0x5 /* .uleb128 0x5 */
449 .byte 0x4 /* DW_CFA_advance_loc4 */
451 .byte 0x86 /* DW_CFA_offset, column 0x6 */
452 .byte 0x3 /* .uleb128 0x3 */
458 #endif /* ifndef __x86_64__ */