1 /* -----------------------------------------------------------------------
2 sysv.S - Copyright (c) 1996, 1998, 2001, 2002, 2003, 2005 Red Hat, Inc.
4 X86 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 ----------------------------------------------------------------------- */
29 #include <fficonfig.h>
38 .type ffi_call_SYSV,@function
46 /* Make room for all of the new args. */
52 /* Place all of the ffi_prep_args in position */
57 /* Return stack to previous state and call the function */
62 /* Load %ecx with the return type code */
65 /* Protect %esi. We're going to pop it in the epilogue. */
68 /* If the return value pointer is NULL, assume no return value. */
72 /* Even if there is no space for the return value, we are
73 obliged to handle floating-point values. */
74 cmpl $FFI_TYPE_FLOAT,%ecx
84 .long noretval-.Lstore_table /* FFI_TYPE_VOID */
85 .long retint-.Lstore_table /* FFI_TYPE_INT */
86 .long retfloat-.Lstore_table /* FFI_TYPE_FLOAT */
87 .long retdouble-.Lstore_table /* FFI_TYPE_DOUBLE */
88 .long retlongdouble-.Lstore_table /* FFI_TYPE_LONGDOUBLE */
89 .long retuint8-.Lstore_table /* FFI_TYPE_UINT8 */
90 .long retsint8-.Lstore_table /* FFI_TYPE_SINT8 */
91 .long retuint16-.Lstore_table /* FFI_TYPE_UINT16 */
92 .long retsint16-.Lstore_table /* FFI_TYPE_SINT16 */
93 .long retint-.Lstore_table /* FFI_TYPE_UINT32 */
94 .long retint-.Lstore_table /* FFI_TYPE_SINT32 */
95 .long retint64-.Lstore_table /* FFI_TYPE_UINT64 */
96 .long retint64-.Lstore_table /* FFI_TYPE_SINT64 */
97 .long retstruct-.Lstore_table /* FFI_TYPE_STRUCT */
98 .long retint-.Lstore_table /* FFI_TYPE_POINTER */
102 add (%esi, %ecx, 4), %esi
105 /* Sign/zero extend as appropriate. */
123 /* Load %ecx with the pointer to storage for the return value */
129 /* Load %ecx with the pointer to storage for the return value */
135 /* Load %ecx with the pointer to storage for the return value */
141 /* Load %ecx with the pointer to storage for the return value */
148 /* Load %ecx with the pointer to storage for the return value */
163 .size ffi_call_SYSV,.ffi_call_SYSV_end-ffi_call_SYSV
166 FFI_HIDDEN (ffi_closure_SYSV)
167 .globl ffi_closure_SYSV
168 .type ffi_closure_SYSV, @function
178 movl %edx, -12(%ebp) /* resp */
180 movl %edx, 4(%esp) /* args = __builtin_dwarf_cfa () */
182 movl %edx, (%esp) /* &resp */
183 #if defined HAVE_HIDDEN_VISIBILITY_ATTRIBUTE || !defined __PIC__
184 call ffi_closure_SYSV_inner
190 addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx
191 call ffi_closure_SYSV_inner@PLT
195 cmpl $FFI_TYPE_INT, %eax
198 /* Handle FFI_TYPE_UINT8, FFI_TYPE_SINT8, FFI_TYPE_UINT16,
199 FFI_TYPE_SINT16, FFI_TYPE_UINT32, FFI_TYPE_SINT32. */
200 cmpl $FFI_TYPE_UINT64, %eax
202 cmpl $FFI_TYPE_UINT8, %eax
205 0: cmpl $FFI_TYPE_FLOAT, %eax
207 cmpl $FFI_TYPE_DOUBLE, %eax
209 cmpl $FFI_TYPE_LONGDOUBLE, %eax
211 cmpl $FFI_TYPE_SINT64, %eax
213 cmpl $FFI_TYPE_STRUCT, %eax
240 .size ffi_closure_SYSV, .-ffi_closure_SYSV
244 #define RAW_CLOSURE_CIF_OFFSET ((FFI_TRAMPOLINE_SIZE + 3) & ~3)
245 #define RAW_CLOSURE_FUN_OFFSET (RAW_CLOSURE_CIF_OFFSET + 4)
246 #define RAW_CLOSURE_USER_DATA_OFFSET (RAW_CLOSURE_FUN_OFFSET + 4)
247 #define CIF_FLAGS_OFFSET 20
250 FFI_HIDDEN (ffi_closure_raw_SYSV)
251 .globl ffi_closure_raw_SYSV
252 .type ffi_closure_raw_SYSV, @function
254 ffi_closure_raw_SYSV:
263 movl RAW_CLOSURE_CIF_OFFSET(%eax), %esi /* closure->cif */
264 movl RAW_CLOSURE_USER_DATA_OFFSET(%eax), %edx /* closure->user_data */
265 movl %edx, 12(%esp) /* user_data */
266 leal 8(%ebp), %edx /* __builtin_dwarf_cfa () */
267 movl %edx, 8(%esp) /* raw_args */
269 movl %edx, 4(%esp) /* &res */
270 movl %esi, (%esp) /* cif */
271 call *RAW_CLOSURE_FUN_OFFSET(%eax) /* closure->fun */
272 movl CIF_FLAGS_OFFSET(%esi), %eax /* rtype */
273 cmpl $FFI_TYPE_INT, %eax
276 /* Handle FFI_TYPE_UINT8, FFI_TYPE_SINT8, FFI_TYPE_UINT16,
277 FFI_TYPE_SINT16, FFI_TYPE_UINT32, FFI_TYPE_SINT32. */
278 cmpl $FFI_TYPE_UINT64, %eax
280 cmpl $FFI_TYPE_UINT8, %eax
283 cmpl $FFI_TYPE_FLOAT, %eax
285 cmpl $FFI_TYPE_DOUBLE, %eax
287 cmpl $FFI_TYPE_LONGDOUBLE, %eax
289 cmpl $FFI_TYPE_SINT64, %eax
313 .size ffi_closure_raw_SYSV, .-ffi_closure_raw_SYSV
316 .section .eh_frame,EH_FRAME_FLAGS,@progbits
318 .long .LECIE1-.LSCIE1 /* Length of Common Information Entry */
320 .long 0x0 /* CIE Identifier Tag */
321 .byte 0x1 /* CIE Version */
323 .ascii "zR\0" /* CIE Augmentation */
325 .ascii "\0" /* CIE Augmentation */
327 .byte 0x1 /* .uleb128 0x1; CIE Code Alignment Factor */
328 .byte 0x7c /* .sleb128 -4; CIE Data Alignment Factor */
329 .byte 0x8 /* CIE RA Column */
331 .byte 0x1 /* .uleb128 0x1; Augmentation size */
332 .byte 0x1b /* FDE Encoding (pcrel sdata4) */
334 .byte 0xc /* DW_CFA_def_cfa */
335 .byte 0x4 /* .uleb128 0x4 */
336 .byte 0x4 /* .uleb128 0x4 */
337 .byte 0x88 /* DW_CFA_offset, column 0x8 */
338 .byte 0x1 /* .uleb128 0x1 */
342 .long .LEFDE1-.LASFDE1 /* FDE Length */
344 .long .LASFDE1-.Lframe1 /* FDE CIE offset */
346 .long .LFB1-. /* FDE initial location */
348 .long .LFB1 /* FDE initial location */
350 .long .LFE1-.LFB1 /* FDE address range */
352 .byte 0x0 /* .uleb128 0x0; Augmentation size */
354 .byte 0x4 /* DW_CFA_advance_loc4 */
356 .byte 0xe /* DW_CFA_def_cfa_offset */
357 .byte 0x8 /* .uleb128 0x8 */
358 .byte 0x85 /* DW_CFA_offset, column 0x5 */
359 .byte 0x2 /* .uleb128 0x2 */
360 .byte 0x4 /* DW_CFA_advance_loc4 */
362 .byte 0xd /* DW_CFA_def_cfa_register */
363 .byte 0x5 /* .uleb128 0x5 */
367 .long .LEFDE2-.LASFDE2 /* FDE Length */
369 .long .LASFDE2-.Lframe1 /* FDE CIE offset */
371 .long .LFB2-. /* FDE initial location */
375 .long .LFE2-.LFB2 /* FDE address range */
377 .byte 0x0 /* .uleb128 0x0; Augmentation size */
379 .byte 0x4 /* DW_CFA_advance_loc4 */
381 .byte 0xe /* DW_CFA_def_cfa_offset */
382 .byte 0x8 /* .uleb128 0x8 */
383 .byte 0x85 /* DW_CFA_offset, column 0x5 */
384 .byte 0x2 /* .uleb128 0x2 */
385 .byte 0x4 /* DW_CFA_advance_loc4 */
387 .byte 0xd /* DW_CFA_def_cfa_register */
388 .byte 0x5 /* .uleb128 0x5 */
389 #if !defined HAVE_HIDDEN_VISIBILITY_ATTRIBUTE && defined __PIC__
390 .byte 0x4 /* DW_CFA_advance_loc4 */
392 .byte 0x83 /* DW_CFA_offset, column 0x3 */
393 .byte 0xa /* .uleb128 0xa */
401 .long .LEFDE3-.LASFDE3 /* FDE Length */
403 .long .LASFDE3-.Lframe1 /* FDE CIE offset */
405 .long .LFB3-. /* FDE initial location */
409 .long .LFE3-.LFB3 /* FDE address range */
411 .byte 0x0 /* .uleb128 0x0; Augmentation size */
413 .byte 0x4 /* DW_CFA_advance_loc4 */
415 .byte 0xe /* DW_CFA_def_cfa_offset */
416 .byte 0x8 /* .uleb128 0x8 */
417 .byte 0x85 /* DW_CFA_offset, column 0x5 */
418 .byte 0x2 /* .uleb128 0x2 */
419 .byte 0x4 /* DW_CFA_advance_loc4 */
421 .byte 0xd /* DW_CFA_def_cfa_register */
422 .byte 0x5 /* .uleb128 0x5 */
423 .byte 0x4 /* DW_CFA_advance_loc4 */
425 .byte 0x86 /* DW_CFA_offset, column 0x6 */
426 .byte 0x3 /* .uleb128 0x3 */
432 #endif /* ifndef __x86_64__ */
434 #if defined __ELF__ && defined __linux__
435 .section .note.GNU-stack,"",@progbits