1/* ----------------------------------------------------------------------- 2 aix_closure.S - Copyright (c) 2002, 2003, 2009 Free Software Foundation, Inc. 3 based on darwin_closure.S 4 5 PowerPC Assembly glue. 6 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: 14 15 The above copyright notice and this permission notice shall be included 16 in all copies or substantial portions of the Software. 17 18 THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 21 IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR 22 OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 23 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 24 OTHER DEALINGS IN THE SOFTWARE. 25 ----------------------------------------------------------------------- */ 26 27 .set r0,0 28 .set r1,1 29 .set r2,2 30 .set r3,3 31 .set r4,4 32 .set r5,5 33 .set r6,6 34 .set r7,7 35 .set r8,8 36 .set r9,9 37 .set r10,10 38 .set r11,11 39 .set r12,12 40 .set r13,13 41 .set r14,14 42 .set r15,15 43 .set r16,16 44 .set r17,17 45 .set r18,18 46 .set r19,19 47 .set r20,20 48 .set r21,21 49 .set r22,22 50 .set r23,23 51 .set r24,24 52 .set r25,25 53 .set r26,26 54 .set r27,27 55 .set r28,28 56 .set r29,29 57 .set r30,30 58 .set r31,31 59 .set f0,0 60 .set f1,1 61 .set f2,2 62 .set f3,3 63 .set f4,4 64 .set f5,5 65 .set f6,6 66 .set f7,7 67 .set f8,8 68 .set f9,9 69 .set f10,10 70 .set f11,11 71 .set f12,12 72 .set f13,13 73 .set f14,14 74 .set f15,15 75 .set f16,16 76 .set f17,17 77 .set f18,18 78 .set f19,19 79 .set f20,20 80 .set f21,21 81 82 .extern .ffi_closure_helper_DARWIN 83 .extern .ffi_go_closure_helper_DARWIN 84 85#define LIBFFI_ASM 86#define JUMPTARGET(name) name 87#define L(x) x 88 .file "aix_closure.S" 89 .toc 90LC..60: 91 .tc L..60[TC],L..60 92 .csect .text[PR] 93 .align 2 94 95.csect .text[PR] 96 .align 2 97 .globl ffi_closure_ASM 98 .globl .ffi_closure_ASM 99.csect ffi_closure_ASM[DS] 100ffi_closure_ASM: 101#ifdef __64BIT__ 102 .llong .ffi_closure_ASM, TOC[tc0], 0 103 .csect .text[PR] 104.ffi_closure_ASM: 105 .function .ffi_closure_ASM,.ffi_closure_ASM,16,044,LFE..0-LFB..0 106 .bf __LINE__ 107 .line 1 108LFB..0: 109/* we want to build up an area for the parameters passed */ 110/* in registers (both floating point and integer) */ 111 112 /* we store gpr 3 to gpr 10 (aligned to 4) 113 in the parents outgoing area */ 114 std r3, 48+(0*8)(r1) 115 std r4, 48+(1*8)(r1) 116 std r5, 48+(2*8)(r1) 117 std r6, 48+(3*8)(r1) 118 mflr r0 119 120 std r7, 48+(4*8)(r1) 121 std r8, 48+(5*8)(r1) 122 std r9, 48+(6*8)(r1) 123 std r10, 48+(7*8)(r1) 124 std r0, 16(r1) /* save the return address */ 125LCFI..0: 126 /* 48 Bytes (Linkage Area) */ 127 /* 64 Bytes (params) */ 128 /* 16 Bytes (result) */ 129 /* 104 Bytes (13*8 from FPR) */ 130 /* 8 Bytes (alignment) */ 131 /* 240 Bytes */ 132 133 stdu r1, -240(r1) /* skip over caller save area 134 keep stack aligned to 16 */ 135LCFI..1: 136 137 /* next save fpr 1 to fpr 13 (aligned to 8) */ 138 stfd f1, 128+(0*8)(r1) 139 stfd f2, 128+(1*8)(r1) 140 stfd f3, 128+(2*8)(r1) 141 stfd f4, 128+(3*8)(r1) 142 stfd f5, 128+(4*8)(r1) 143 stfd f6, 128+(5*8)(r1) 144 stfd f7, 128+(6*8)(r1) 145 stfd f8, 128+(7*8)(r1) 146 stfd f9, 128+(8*8)(r1) 147 stfd f10, 128+(9*8)(r1) 148 stfd f11, 128+(10*8)(r1) 149 stfd f12, 128+(11*8)(r1) 150 stfd f13, 128+(12*8)(r1) 151 152 /* set up registers for the routine that actually does the work */ 153 /* get the context pointer from the trampoline */ 154 mr r3, r11 155 156 /* now load up the pointer to the result storage */ 157 addi r4, r1, 112 158 159 /* now load up the pointer to the saved gpr registers */ 160 addi r5, r1, 288 161 162 /* now load up the pointer to the saved fpr registers */ 163 addi r6, r1, 128 164 165 /* make the call */ 166 bl .ffi_closure_helper_DARWIN 167 nop 168 169.Ldoneclosure: 170 171 /* now r3 contains the return type */ 172 /* so use it to look up in a table */ 173 /* so we know how to deal with each type */ 174 175 /* look up the proper starting point in table */ 176 /* by using return type as offset */ 177 lhz r3, 10(r3) /* load type from return type */ 178 ld r4, LC..60(2) /* get address of jump table */ 179 sldi r3, r3, 4 /* now multiply return type by 16 */ 180 ld r0, 240+16(r1) /* load return address */ 181 add r3, r3, r4 /* add contents of table to table address */ 182 mtctr r3 183 bctr /* jump to it */ 184 185/* Each fragment must be exactly 16 bytes long (4 instructions). 186 Align to 16 byte boundary for cache and dispatch efficiency. */ 187 .align 4 188 189L..60: 190/* case FFI_TYPE_VOID */ 191 mtlr r0 192 addi r1, r1, 240 193 blr 194 nop 195 196/* case FFI_TYPE_INT */ 197 lwa r3, 112+4(r1) 198 mtlr r0 199 addi r1, r1, 240 200 blr 201 202/* case FFI_TYPE_FLOAT */ 203 lfs f1, 112+0(r1) 204 mtlr r0 205 addi r1, r1, 240 206 blr 207 208/* case FFI_TYPE_DOUBLE */ 209 lfd f1, 112+0(r1) 210 mtlr r0 211 addi r1, r1, 240 212 blr 213 214/* case FFI_TYPE_LONGDOUBLE */ 215 lfd f1, 112+0(r1) 216 mtlr r0 217 lfd f2, 112+8(r1) 218 b L..finish 219 220/* case FFI_TYPE_UINT8 */ 221 lbz r3, 112+7(r1) 222 mtlr r0 223 addi r1, r1, 240 224 blr 225 226/* case FFI_TYPE_SINT8 */ 227 lbz r3, 112+7(r1) 228 mtlr r0 229 extsb r3, r3 230 b L..finish 231 232/* case FFI_TYPE_UINT16 */ 233 lhz r3, 112+6(r1) 234 mtlr r0 235L..finish: 236 addi r1, r1, 240 237 blr 238 239/* case FFI_TYPE_SINT16 */ 240 lha r3, 112+6(r1) 241 mtlr r0 242 addi r1, r1, 240 243 blr 244 245/* case FFI_TYPE_UINT32 */ 246 lwz r3, 112+4(r1) 247 mtlr r0 248 addi r1, r1, 240 249 blr 250 251/* case FFI_TYPE_SINT32 */ 252 lwa r3, 112+4(r1) 253 mtlr r0 254 addi r1, r1, 240 255 blr 256 257/* case FFI_TYPE_UINT64 */ 258 ld r3, 112+0(r1) 259 mtlr r0 260 addi r1, r1, 240 261 blr 262 263/* case FFI_TYPE_SINT64 */ 264 ld r3, 112+0(r1) 265 mtlr r0 266 addi r1, r1, 240 267 blr 268 269/* case FFI_TYPE_STRUCT */ 270 mtlr r0 271 addi r1, r1, 240 272 blr 273 nop 274 275/* case FFI_TYPE_POINTER */ 276 ld r3, 112+0(r1) 277 mtlr r0 278 addi r1, r1, 240 279 blr 280LFE..0: 281 282#else /* ! __64BIT__ */ 283 284 .long .ffi_closure_ASM, TOC[tc0], 0 285 .csect .text[PR] 286.ffi_closure_ASM: 287 .function .ffi_closure_ASM,.ffi_closure_ASM,16,044,LFE..0-LFB..0 288 .bf __LINE__ 289 .line 1 290LFB..0: 291/* we want to build up an area for the parameters passed */ 292/* in registers (both floating point and integer) */ 293 294 /* we store gpr 3 to gpr 10 (aligned to 4) 295 in the parents outgoing area */ 296 stw r3, 24+(0*4)(r1) 297 stw r4, 24+(1*4)(r1) 298 stw r5, 24+(2*4)(r1) 299 stw r6, 24+(3*4)(r1) 300 mflr r0 301 302 stw r7, 24+(4*4)(r1) 303 stw r8, 24+(5*4)(r1) 304 stw r9, 24+(6*4)(r1) 305 stw r10, 24+(7*4)(r1) 306 stw r0, 8(r1) 307LCFI..0: 308 /* 24 Bytes (Linkage Area) */ 309 /* 32 Bytes (params) */ 310 /* 16 Bytes (result) */ 311 /* 104 Bytes (13*8 from FPR) */ 312 /* 176 Bytes */ 313 314 stwu r1, -176(r1) /* skip over caller save area 315 keep stack aligned to 16 */ 316LCFI..1: 317 318 /* next save fpr 1 to fpr 13 (aligned to 8) */ 319 stfd f1, 72+(0*8)(r1) 320 stfd f2, 72+(1*8)(r1) 321 stfd f3, 72+(2*8)(r1) 322 stfd f4, 72+(3*8)(r1) 323 stfd f5, 72+(4*8)(r1) 324 stfd f6, 72+(5*8)(r1) 325 stfd f7, 72+(6*8)(r1) 326 stfd f8, 72+(7*8)(r1) 327 stfd f9, 72+(8*8)(r1) 328 stfd f10, 72+(9*8)(r1) 329 stfd f11, 72+(10*8)(r1) 330 stfd f12, 72+(11*8)(r1) 331 stfd f13, 72+(12*8)(r1) 332 333 /* set up registers for the routine that actually does the work */ 334 /* get the context pointer from the trampoline */ 335 mr r3, r11 336 337 /* now load up the pointer to the result storage */ 338 addi r4, r1, 56 339 340 /* now load up the pointer to the saved gpr registers */ 341 addi r5, r1, 200 342 343 /* now load up the pointer to the saved fpr registers */ 344 addi r6, r1, 72 345 346 /* make the call */ 347 bl .ffi_closure_helper_DARWIN 348 nop 349 350.Ldoneclosure: 351 352 /* now r3 contains the return type */ 353 /* so use it to look up in a table */ 354 /* so we know how to deal with each type */ 355 356 /* look up the proper starting point in table */ 357 /* by using return type as offset */ 358 lhz r3, 6(r3) /* load type from return type */ 359 lwz r4, LC..60(2) /* get address of jump table */ 360 slwi r3, r3, 4 /* now multiply return type by 16 */ 361 lwz r0, 176+8(r1) /* load return address */ 362 add r3, r3, r4 /* add contents of table to table address */ 363 mtctr r3 364 bctr /* jump to it */ 365 366/* Each fragment must be exactly 16 bytes long (4 instructions). 367 Align to 16 byte boundary for cache and dispatch efficiency. */ 368 .align 4 369 370L..60: 371/* case FFI_TYPE_VOID */ 372 mtlr r0 373 addi r1, r1, 176 374 blr 375 nop 376 377/* case FFI_TYPE_INT */ 378 lwz r3, 56+0(r1) 379 mtlr r0 380 addi r1, r1, 176 381 blr 382 383/* case FFI_TYPE_FLOAT */ 384 lfs f1, 56+0(r1) 385 mtlr r0 386 addi r1, r1, 176 387 blr 388 389/* case FFI_TYPE_DOUBLE */ 390 lfd f1, 56+0(r1) 391 mtlr r0 392 addi r1, r1, 176 393 blr 394 395/* case FFI_TYPE_LONGDOUBLE */ 396 lfd f1, 56+0(r1) 397 mtlr r0 398 lfd f2, 56+8(r1) 399 b L..finish 400 401/* case FFI_TYPE_UINT8 */ 402 lbz r3, 56+3(r1) 403 mtlr r0 404 addi r1, r1, 176 405 blr 406 407/* case FFI_TYPE_SINT8 */ 408 lbz r3, 56+3(r1) 409 mtlr r0 410 extsb r3, r3 411 b L..finish 412 413/* case FFI_TYPE_UINT16 */ 414 lhz r3, 56+2(r1) 415 mtlr r0 416 addi r1, r1, 176 417 blr 418 419/* case FFI_TYPE_SINT16 */ 420 lha r3, 56+2(r1) 421 mtlr r0 422 addi r1, r1, 176 423 blr 424 425/* case FFI_TYPE_UINT32 */ 426 lwz r3, 56+0(r1) 427 mtlr r0 428 addi r1, r1, 176 429 blr 430 431/* case FFI_TYPE_SINT32 */ 432 lwz r3, 56+0(r1) 433 mtlr r0 434 addi r1, r1, 176 435 blr 436 437/* case FFI_TYPE_UINT64 */ 438 lwz r3, 56+0(r1) 439 mtlr r0 440 lwz r4, 56+4(r1) 441 b L..finish 442 443/* case FFI_TYPE_SINT64 */ 444 lwz r3, 56+0(r1) 445 mtlr r0 446 lwz r4, 56+4(r1) 447 b L..finish 448 449/* case FFI_TYPE_STRUCT */ 450 mtlr r0 451 addi r1, r1, 176 452 blr 453 nop 454 455/* case FFI_TYPE_POINTER */ 456 lwz r3, 56+0(r1) 457 mtlr r0 458L..finish: 459 addi r1, r1, 176 460 blr 461LFE..0: 462#endif 463 .ef __LINE__ 464/* END(ffi_closure_ASM) */ 465 466 467.csect .text[PR] 468 .align 2 469 .globl ffi_go_closure_ASM 470 .globl .ffi_go_closure_ASM 471.csect ffi_go_closure_ASM[DS] 472ffi_go_closure_ASM: 473#ifdef __64BIT__ 474 .llong .ffi_go_closure_ASM, TOC[tc0], 0 475 .csect .text[PR] 476.ffi_go_closure_ASM: 477 .function .ffi_go_closure_ASM,.ffi_go_closure_ASM,16,044,LFE..1-LFB..1 478 .bf __LINE__ 479 .line 1 480LFB..1: 481/* we want to build up an area for the parameters passed */ 482/* in registers (both floating point and integer) */ 483 484 /* we store gpr 3 to gpr 10 (aligned to 4) 485 in the parents outgoing area */ 486 std r3, 48+(0*8)(r1) 487 std r4, 48+(1*8)(r1) 488 std r5, 48+(2*8)(r1) 489 std r6, 48+(3*8)(r1) 490 mflr r0 491 492 std r7, 48+(4*8)(r1) 493 std r8, 48+(5*8)(r1) 494 std r9, 48+(6*8)(r1) 495 std r10, 48+(7*8)(r1) 496 std r0, 16(r1) /* save the return address */ 497LCFI..2: 498 /* 48 Bytes (Linkage Area) */ 499 /* 64 Bytes (params) */ 500 /* 16 Bytes (result) */ 501 /* 104 Bytes (13*8 from FPR) */ 502 /* 8 Bytes (alignment) */ 503 /* 240 Bytes */ 504 505 stdu r1, -240(r1) /* skip over caller save area 506 keep stack aligned to 16 */ 507LCFI..3: 508 509 /* next save fpr 1 to fpr 13 (aligned to 8) */ 510 stfd f1, 128+(0*8)(r1) 511 stfd f2, 128+(1*8)(r1) 512 stfd f3, 128+(2*8)(r1) 513 stfd f4, 128+(3*8)(r1) 514 stfd f5, 128+(4*8)(r1) 515 stfd f6, 128+(5*8)(r1) 516 stfd f7, 128+(6*8)(r1) 517 stfd f8, 128+(7*8)(r1) 518 stfd f9, 128+(8*8)(r1) 519 stfd f10, 128+(9*8)(r1) 520 stfd f11, 128+(10*8)(r1) 521 stfd f12, 128+(11*8)(r1) 522 stfd f13, 128+(12*8)(r1) 523 524 /* set up registers for the routine that actually does the work */ 525 mr r3, r11 /* go closure */ 526 527 /* now load up the pointer to the result storage */ 528 addi r4, r1, 112 529 530 /* now load up the pointer to the saved gpr registers */ 531 addi r5, r1, 288 532 533 /* now load up the pointer to the saved fpr registers */ 534 addi r6, r1, 128 535 536 /* make the call */ 537 bl .ffi_go_closure_helper_DARWIN 538 nop 539 540 b .Ldoneclosure 541LFE..1: 542 543#else /* ! __64BIT__ */ 544 545 .long .ffi_go_closure_ASM, TOC[tc0], 0 546 .csect .text[PR] 547.ffi_go_closure_ASM: 548 .function .ffi_go_closure_ASM,.ffi_go_closure_ASM,16,044,LFE..1-LFB..1 549 .bf __LINE__ 550 .line 1 551LFB..1: 552/* we want to build up an area for the parameters passed */ 553/* in registers (both floating point and integer) */ 554 555 /* we store gpr 3 to gpr 10 (aligned to 4) 556 in the parents outgoing area */ 557 stw r3, 24+(0*4)(r1) 558 stw r4, 24+(1*4)(r1) 559 stw r5, 24+(2*4)(r1) 560 stw r6, 24+(3*4)(r1) 561 mflr r0 562 563 stw r7, 24+(4*4)(r1) 564 stw r8, 24+(5*4)(r1) 565 stw r9, 24+(6*4)(r1) 566 stw r10, 24+(7*4)(r1) 567 stw r0, 8(r1) 568LCFI..2: 569 /* 24 Bytes (Linkage Area) */ 570 /* 32 Bytes (params) */ 571 /* 16 Bytes (result) */ 572 /* 104 Bytes (13*8 from FPR) */ 573 /* 176 Bytes */ 574 575 stwu r1, -176(r1) /* skip over caller save area 576 keep stack aligned to 16 */ 577LCFI..3: 578 579 /* next save fpr 1 to fpr 13 (aligned to 8) */ 580 stfd f1, 72+(0*8)(r1) 581 stfd f2, 72+(1*8)(r1) 582 stfd f3, 72+(2*8)(r1) 583 stfd f4, 72+(3*8)(r1) 584 stfd f5, 72+(4*8)(r1) 585 stfd f6, 72+(5*8)(r1) 586 stfd f7, 72+(6*8)(r1) 587 stfd f8, 72+(7*8)(r1) 588 stfd f9, 72+(8*8)(r1) 589 stfd f10, 72+(9*8)(r1) 590 stfd f11, 72+(10*8)(r1) 591 stfd f12, 72+(11*8)(r1) 592 stfd f13, 72+(12*8)(r1) 593 594 /* set up registers for the routine that actually does the work */ 595 mr r3, 11 /* go closure */ 596 597 /* now load up the pointer to the result storage */ 598 addi r4, r1, 56 599 600 /* now load up the pointer to the saved gpr registers */ 601 addi r5, r1, 200 602 603 /* now load up the pointer to the saved fpr registers */ 604 addi r6, r1, 72 605 606 /* make the call */ 607 bl .ffi_go_closure_helper_DARWIN 608 nop 609 610 b .Ldoneclosure 611LFE..1: 612#endif 613 .ef __LINE__ 614/* END(ffi_go_closure_ASM) */ 615 616/* EH frame stuff. */ 617 618#define LR_REGNO 0x41 /* Link Register (65), see rs6000.md */ 619#ifdef __64BIT__ 620#define PTRSIZE 8 621#define LOG2_PTRSIZE 3 622#define CFA_OFFSET 0xf0,0x01 /* LEB128 240 */ 623#define FDE_ENCODING 0x1c /* DW_EH_PE_pcrel|DW_EH_PE_sdata8 */ 624#define EH_DATA_ALIGN_FACT 0x78 /* LEB128 -8 */ 625#else 626#define PTRSIZE 4 627#define LOG2_PTRSIZE 2 628#define CFA_OFFSET 0xb0,0x01 /* LEB128 176 */ 629#define FDE_ENCODING 0x1b /* DW_EH_PE_pcrel|DW_EH_PE_sdata4 */ 630#define EH_DATA_ALIGN_FACT 0x7c /* LEB128 -4 */ 631#endif 632 633 .csect _unwind.ro_[RO],4 634 .align LOG2_PTRSIZE 635 .globl _GLOBAL__F_libffi_src_powerpc_aix_closure 636_GLOBAL__F_libffi_src_powerpc_aix_closure: 637Lframe..1: 638 .vbyte 4,LECIE..1-LSCIE..1 /* CIE Length */ 639LSCIE..1: 640 .vbyte 4,0 /* CIE Identifier Tag */ 641 .byte 0x3 /* CIE Version */ 642 .byte "zR" /* CIE Augmentation */ 643 .byte 0 644 .byte 0x1 /* uleb128 0x1; CIE Code Alignment Factor */ 645 .byte EH_DATA_ALIGN_FACT /* leb128 -4/-8; CIE Data Alignment Factor */ 646 .byte LR_REGNO /* CIE RA Column */ 647 .byte 0x1 /* uleb128 0x1; Augmentation size */ 648 .byte FDE_ENCODING /* FDE Encoding (pcrel|sdata4/8) */ 649 .byte 0xc /* DW_CFA_def_cfa */ 650 .byte 0x1 /* uleb128 0x1; Register r1 */ 651 .byte 0 /* uleb128 0x0; Offset 0 */ 652 .align LOG2_PTRSIZE 653LECIE..1: 654LSFDE..1: 655 .vbyte 4,LEFDE..1-LASFDE..1 /* FDE Length */ 656LASFDE..1: 657 .vbyte 4,LASFDE..1-Lframe..1 /* FDE CIE offset */ 658 .vbyte PTRSIZE,LFB..0-$ /* FDE initial location */ 659 .vbyte PTRSIZE,LFE..0-LFB..0 /* FDE address range */ 660 .byte 0 /* uleb128 0x0; Augmentation size */ 661 .byte 0x4 /* DW_CFA_advance_loc4 */ 662 .vbyte 4,LCFI..1-LCFI..0 663 .byte 0xe /* DW_CFA_def_cfa_offset */ 664 .byte CFA_OFFSET /* uleb128 176/240 */ 665 .byte 0x4 /* DW_CFA_advance_loc4 */ 666 .vbyte 4,LCFI..0-LFB..0 667 .byte 0x11 /* DW_CFA_offset_extended_sf */ 668 .byte LR_REGNO /* uleb128 LR_REGNO; Register LR */ 669 .byte 0x7e /* leb128 -2; Offset -2 (8/16) */ 670 .align LOG2_PTRSIZE 671LEFDE..1: 672LSFDE..2: 673 .vbyte 4,LEFDE..2-LASFDE..2 /* FDE Length */ 674LASFDE..2: 675 .vbyte 4,LASFDE..2-Lframe..1 /* FDE CIE offset */ 676 .vbyte PTRSIZE,LFB..1-$ /* FDE initial location */ 677 .vbyte PTRSIZE,LFE..1-LFB..1 /* FDE address range */ 678 .byte 0 /* uleb128 0x0; Augmentation size */ 679 .byte 0x4 /* DW_CFA_advance_loc4 */ 680 .vbyte 4,LCFI..3-LCFI..2 681 .byte 0xe /* DW_CFA_def_cfa_offset */ 682 .byte CFA_OFFSET /* uleb128 176/240 */ 683 .byte 0x4 /* DW_CFA_advance_loc4 */ 684 .vbyte 4,LCFI..2-LFB..1 685 .byte 0x11 /* DW_CFA_offset_extended_sf */ 686 .byte LR_REGNO /* uleb128 LR_REGNO; Register LR */ 687 .byte 0x7e /* leb128 -2; Offset -2 (8/16) */ 688 .align LOG2_PTRSIZE 689LEFDE..2: 690 .vbyte 4,0 /* End of FDEs */ 691 692 .csect .text[PR] 693 .ref _GLOBAL__F_libffi_src_powerpc_aix_closure /* Prevents garbage collection by AIX linker */ 694 695