reference, declarationdefinition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced
    1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
  113
  114
  115
  116
  117
  118
  119
  120
  121
  122
  123
  124
  125
  126
  127
  128
  129
  130
  131
  132
  133
  134
  135
  136
  137
  138
  139
  140
  141
  142
  143
  144
  145
  146
  147
  148
  149
  150
  151
  152
  153
  154
  155
  156
  157
  158
  159
  160
  161
  162
  163
  164
  165
  166
  167
  168
  169
  170
  171
  172
  173
  174
  175
  176
  177
  178
  179
  180
  181
  182
  183
  184
  185
  186
  187
  188
  189
  190
  191
  192
  193
  194
  195
  196
  197
  198
  199
  200
  201
  202
  203
  204
  205
  206
  207
  208
  209
  210
  211
  212
  213
  214
  215
  216
  217
  218
  219
  220
  221
  222
  223
  224
  225
  226
  227
  228
  229
  230
  231
  232
  233
  234
  235
  236
  237
  238
  239
  240
  241
  242
  243
  244
  245
  246
  247
  248
  249
  250
  251
  252
  253
  254
  255
  256
  257
  258
  259
  260
  261
  262
  263
  264
  265
  266
  267
  268
  269
  270
  271
  272
  273
  274
  275
  276
  277
  278
  279
  280
  281
  282
  283
  284
  285
  286
  287
  288
  289
  290
  291
  292
  293
  294
  295
  296
  297
  298
  299
  300
  301
  302
  303
  304
  305
  306
  307
  308
  309
  310
  311
  312
  313
  314
  315
  316
  317
  318
  319
  320
  321
  322
  323
  324
  325
  326
  327
  328
  329
  330
  331
  332
  333
  334
  335
  336
  337
  338
  339
  340
  341
  342
  343
  344
  345
  346
  347
  348
  349
  350
  351
  352
  353
  354
  355
  356
  357
  358
  359
  360
  361
  362
  363
  364
  365
  366
  367
  368
  369
  370
  371
  372
  373
  374
  375
  376
  377
  378
  379
  380
  381
  382
  383
  384
  385
  386
  387
  388
// REQUIRES: arm
// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
// RUN: echo "SECTIONS { \
// RUN:       . = SIZEOF_HEADERS; \
// RUN:       .R_ARM_JUMP24_callee_1 : { *(.R_ARM_JUMP24_callee_low) } \
// RUN:       .R_ARM_THM_JUMP_callee_1 : { *(.R_ARM_THM_JUMP_callee_low)} \
// RUN:       .text : { *(.text) } \
// RUN:       .arm_caller : { *(.arm_caller) } \
// RUN:       .thumb_caller : { *(.thumb_caller) } \
// RUN:       .R_ARM_JUMP24_callee_2 : { *(.R_ARM_JUMP24_callee_high) } \
// RUN:       .R_ARM_THM_JUMP_callee_2 : { *(.R_ARM_THM_JUMP_callee_high) } \
// RUN:       .got.plt 0x18b4 : {  }  } " > %t.script
// RUN: ld.lld --script %t.script %t -o %t2
// RUN: llvm-objdump -d -triple=thumbv7a-none-linux-gnueabi %t2 | FileCheck -check-prefix=CHECK-THUMB -check-prefix=CHECK-ABS-THUMB %s
// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi %t2 | FileCheck -check-prefix=CHECK-ARM -check-prefix=CHECK-ABS-ARM %s
// RUN: ld.lld --script %t.script %t -pie -o %t3
// RUN: ld.lld --script %t.script %t --shared -o %t4
// RUN: llvm-objdump -d -triple=thumbv7a-none-linux-gnueabi %t3 | FileCheck -check-prefix=CHECK-THUMB -check-prefix=CHECK-PI-THUMB %s
// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi %t3 | FileCheck -check-prefix=CHECK-ARM -check-prefix=CHECK-PI-ARM %s
// RUN: llvm-objdump -d -triple=thumbv7a-none-linux-gnueabi %t4 | FileCheck -check-prefix=CHECK-THUMB -check-prefix=CHECK-PI-PLT-THUMB %s
// RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi %t4 | FileCheck -check-prefix=CHECK-ARM -check-prefix=CHECK-PI-PLT-ARM %s
// RUN: llvm-readobj -S -r %t4 | FileCheck -check-prefix=CHECK-DSO-REL %s

// Test ARM Thumb Interworking
// The file is linked and checked 3 times to check the following contexts
// - Absolute executables, absolute Thunks are used.
// - Position independent executables, position independent Thunks are used.
// - Shared object, position independent Thunks to PLT entries are used.

 .syntax unified

// Target Sections for thunks at a lower address than the callers.
.section .R_ARM_JUMP24_callee_low, "ax", %progbits
 .thumb
 .balign 0x1000
 .globl thumb_callee1
 .type thumb_callee1, %function
thumb_callee1:
 bx lr

// CHECK-THUMB: Disassembly of section .R_ARM_JUMP24_callee_1:
// CHECK-THUMB-EMPTY:
// CHECK-THUMB: thumb_callee1:
// CHECK-THUMB: 1000:       70 47   bx
 .section .R_ARM_THM_JUMP_callee_low, "ax", %progbits
 .arm
 .balign 0x100
 .globl arm_callee1
 .type arm_callee1, %function
arm_callee1:
 bx lr
// Disassembly of section .R_ARM_THM_JUMP_callee_1:
// CHECK-ARM: arm_callee1:
// CHECK-ARM-NEXT: 1100:         1e ff 2f e1     bx      lr

 // Calling sections
 // At present ARM and Thumb interworking thunks are always added to the calling
 // section.
 .section .arm_caller, "ax", %progbits
 .arm
 .balign 0x100
 .globl arm_caller
 .type arm_caller, %function
arm_caller:
 // If target supports BLX and target is in range we don't need an
 // interworking thunk for a BL or BLX instruction.
 bl thumb_callee1
 blx thumb_callee1
 // A B instruction can't be transformed into a BLX and needs an interworking
 // thunk
 b thumb_callee1
 // As long as the thunk is in range it can be reused
 b thumb_callee1
 // There can be more than one thunk associated with a section
 b thumb_callee2
 b thumb_callee3
 // In range ARM targets do not require interworking thunks
 b arm_callee1
 beq arm_callee2
 bne arm_callee3
 bx lr
// CHECK-ARM-ABS-ARM: Disassembly of section .arm_caller:
// CHECK-ARM-ABS-ARM-EMPTY:
// CHECK-ARM-ABS-ARM-NEXT: arm_caller:
// CHECK-ARM-ABS-ARM-NEXT:     1300:       3e ff ff fa     blx     #-776 <thumb_callee1>
// CHECK-ARM-ABS-ARM-NEXT:     1304:       3d ff ff fa     blx     #-780 <thumb_callee1>
// CHECK-ARM-ABS-ARM-NEXT:     1308:       06 00 00 ea     b       #24 <__ARMv7ABSLongThunk_thumb_callee1>
// CHECK-ARM-ABS-ARM-NEXT:     130c:       05 00 00 ea     b       #20 <__ARMv7ABSLongThunk_thumb_callee1>
// CHECK-ARM-ABS-ARM-NEXT:     1310:       07 00 00 ea     b       #28 <__ARMv7ABSLongThunk_thumb_callee2>
// CHECK-ARM-ABS-ARM-NEXT:     1314:       09 00 00 ea     b       #36 <__ARMv7ABSLongThunk_thumb_callee3>
// CHECK-ARM-ABS-ARM-NEXT:     1318:       78 ff ff ea     b       #-544 <arm_callee1>
// CHECK-ARM-ABS-ARM-NEXT:     131c:       b7 00 00 0a     beq     #732 <arm_callee2>
// CHECK-ARM-ABS-ARM-NEXT:     1320:       b7 00 00 1a     bne     #732 <arm_callee3>
// CHECK-ARM-ABS-ARM-NEXT:     1324:       1e ff 2f e1     bx      lr
// CHECK-ARM-ABS-ARM: __ARMv7ABSLongThunk_thumb_callee1:
// 0x1001 = thumb_callee1
// CHECK-ARM-ABS-ARM-NEXT:     1328:       01 c0 01 e3     movw    r12, #4097
// CHECK-ARM-ABS-ARM-NEXT:     132c:       00 c0 40 e3     movt    r12, #0
// CHECK-ARM-ABS-ARM-NEXT:     1330:       1c ff 2f e1     bx      r12
// 0x1501 = thumb_callee2
// CHECK-ARM-ABS-ARM: __ARMv7ABSLongThunk_thumb_callee2:
// CHECK-ARM-ABS-ARM-NEXT:     1334:       01 c5 01 e3     movw    r12, #5377
// CHECK-ARM-ABS-ARM-NEXT:     1338:       00 c0 40 e3     movt    r12, #0
// CHECK-ARM-ABS-ARM-NEXT:     133c:       1c ff 2f e1     bx      r12
// 0x1503 = thumb_callee3
// CHECK-ARM-ABS-ARM: __ARMv7ABSLongThunk_thumb_callee3:
// CHECK-ARM-ABS-ARM-NEXT:     1340:       03 c5 01 e3     movw    r12, #5379
// CHECK-ARM-ABS-ARM-NEXT:     1344:       00 c0 40 e3     movt    r12, #0
// CHECK-ARM-ABS-ARM-NEXT:     1348:       1c ff 2f e1     bx      r12

// CHECK-PI-ARM: Disassembly of section .arm_caller:
// CHECK-PI-ARM-EMPTY:
// CHECK-PI-ARM-NEXT: arm_caller:
// CHECK-PI-ARM-NEXT:     1300:       3e ff ff fa     blx     #-776 <thumb_callee1>
// CHECK-PI-ARM-NEXT:     1304:       3d ff ff fa     blx     #-780 <thumb_callee1>
// CHECK-PI-ARM-NEXT:     1308:       06 00 00 ea     b       #24 <__ARMV7PILongThunk_thumb_callee1>
// CHECK-PI-ARM-NEXT:     130c:       05 00 00 ea     b       #20 <__ARMV7PILongThunk_thumb_callee1>
// CHECK-PI-ARM-NEXT:     1310:       08 00 00 ea     b       #32 <__ARMV7PILongThunk_thumb_callee2>
// CHECK-PI-ARM-NEXT:     1314:       0b 00 00 ea     b       #44 <__ARMV7PILongThunk_thumb_callee3>
// CHECK-PI-ARM-NEXT:     1318:       78 ff ff ea     b       #-544 <arm_callee1>
// CHECK-PI-ARM-NEXT:     131c:       b7 00 00 0a     beq     #732 <arm_callee2>
// CHECK-PI-ARM-NEXT:     1320:       b7 00 00 1a     bne     #732 <arm_callee3>
// CHECK-PI-ARM-NEXT:     1324:       1e ff 2f e1     bx      lr
// CHECK-PI-ARM: __ARMV7PILongThunk_thumb_callee1:
// 0x1330 + 8 - 0x337 = 0x1001 = thumb_callee1
// CHECK-PI-ARM-NEXT:     1328:       c9 cc 0f e3     movw    r12, #64713
// CHECK-PI-ARM-NEXT:     132c:       ff cf 4f e3     movt    r12, #65535
// CHECK-PI-ARM-NEXT:     1330:       0f c0 8c e0     add     r12, r12, pc
// CHECK-PI-ARM-NEXT:     1334:       1c ff 2f e1     bx      r12
// CHECK-PI-ARM: __ARMV7PILongThunk_thumb_callee2:

// CHECK-PI-ARM-NEXT:     1338:       b9 c1 00 e3     movw    r12, #441
// CHECK-PI-ARM-NEXT:     133c:       00 c0 40 e3     movt    r12, #0
// CHECK-PI-ARM-NEXT:     1340:       0f c0 8c e0     add     r12, r12, pc
// CHECK-PI-ARM-NEXT:     1344:       1c ff 2f e1     bx      r12
// CHECK-PI-ARM: __ARMV7PILongThunk_thumb_callee3:
// 0x1340 + 8 + 0x1b9 = 0x1501
// CHECK-PI-ARM-NEXT:     1348:       ab c1 00 e3     movw    r12, #427
// CHECK-PI-ARM-NEXT:     134c:       00 c0 40 e3     movt    r12, #0
// CHECK-PI-ARM-NEXT:     1350:       0f c0 8c e0     add     r12, r12, pc
// CHECK-PI-ARM-NEXT:     1354:       1c ff 2f e1     bx      r12
// 1350 + 8 + 0x1ab = 0x1503

// All PLT entries are ARM, no need for interworking thunks
// CHECK-PI-ARM-PLT: Disassembly of section .arm_caller:
// CHECK-PI-ARM-PLT-EMPTY:
// CHECK-PI-ARM-PLT-NEXT: arm_caller:
// 0x17e4 PLT(thumb_callee1)
// CHECK-PI-ARM-PLT-NEXT:    1300:       37 01 00 eb     bl      #1244
// 0x17e4 PLT(thumb_callee1)
// CHECK-PI-ARM-PLT-NEXT:    1304:       36 01 00 eb     bl      #1240
// 0x17e4 PLT(thumb_callee1)
// CHECK-PI-ARM-PLT-NEXT:    1308:       35 01 00 ea     b       #1236
// 0x17e4 PLT(thumb_callee1)
// CHECK-PI-ARM-PLT-NEXT:    130c:       34 01 00 ea     b       #1232
// 0x17f4 PLT(thumb_callee2)
// CHECK-PI-ARM-PLT-NEXT:    1310:       37 01 00 ea     b       #1244
// 0x1804 PLT(thumb_callee3)
// CHECK-PI-ARM-PLT-NEXT:    1314:       3a 01 00 ea     b       #1256
// 0x1814 PLT(arm_callee1)
// CHECK-PI-ARM-PLT-NEXT:    1318:       3d 01 00 ea     b       #1268
// 0x1824 PLT(arm_callee2)
// CHECK-PI-ARM-PLT-NEXT:    131c:       40 01 00 0a     beq     #1280
// 0x1834 PLT(arm_callee3)
// CHECK-PI-ARM-PLT-NEXT:    1320:       43 01 00 1a     bne     #1292
// CHECK-PI-ARM-PLT-NEXT:    1324:       1e ff 2f e1     bx      lr

 .section .thumb_caller, "ax", %progbits
 .balign 0x100
 .thumb
 .globl thumb_caller
 .type thumb_caller, %function
thumb_caller:
 // If target supports BLX and target is in range we don't need an
 // interworking thunk for a BL or BLX instruction.
 bl arm_callee1
 blx arm_callee1
 // A B instruction can't be transformed into a BLX and needs an interworking
 // thunk
 b.w arm_callee1
 // As long as the thunk is in range it can be reused
 b.w arm_callee2
 // There can be more than one thunk associated with a section
 b.w arm_callee3
 // Conditional branches also require interworking thunks, they can use the
 // same interworking thunks.
 beq.w arm_callee1
 beq.w arm_callee2
 bne.w arm_callee3
// CHECK-ABS-THUMB: Disassembly of section .thumb_caller:
// CHECK-ABS-THUMB-EMPTY:
// CHECK-ABS-THUMB-NEXT: thumb_caller:
// CHECK-ABS-THUMB-NEXT:     1400:       ff f7 7e ee     blx     #-772
// CHECK-ABS-THUMB-NEXT:     1404:       ff f7 7c ee     blx     #-776
// CHECK-ABS-THUMB-NEXT:     1408:       00 f0 0a b8     b.w     #20 <__Thumbv7ABSLongThunk_arm_callee1>
// CHECK-ABS-THUMB-NEXT:     140c:       00 f0 0d b8     b.w     #26 <__Thumbv7ABSLongThunk_arm_callee2>
// CHECK-ABS-THUMB-NEXT:     1410:       00 f0 10 b8     b.w     #32 <__Thumbv7ABSLongThunk_arm_callee3>
// CHECK-ABS-THUMB-NEXT:     1414:       00 f0 04 80     beq.w   #8 <__Thumbv7ABSLongThunk_arm_callee1>
// CHECK-ABS-THUMB-NEXT:     1418:       00 f0 07 80     beq.w   #14 <__Thumbv7ABSLongThunk_arm_callee2>
// CHECK-ABS-THUMB-NEXT:     141c:       40 f0 0a 80     bne.w   #20 <__Thumbv7ABSLongThunk_arm_callee3>
// CHECK-ABS-THUMB: __Thumbv7ABSLongThunk_arm_callee1:
// 0x1100 = arm_callee1
// CHECK-ABS-THUMB-NEXT:     1420:       41 f2 00 1c     movw    r12, #4352
// CHECK-ABS-THUMB-NEXT:     1424:       c0 f2 00 0c     movt    r12, #0
// CHECK-ABS-THUMB-NEXT:     1428:       60 47   bx      r12
// CHECK-ABS-THUMB: __Thumbv7ABSLongThunk_arm_callee2:
// 0x1600 = arm_callee2
// CHECK-ABS-THUMB-NEXT:     142a:       41 f2 00 6c     movw    r12, #5632
// CHECK-ABS-THUMB-NEXT:     142e:       c0 f2 00 0c     movt    r12, #0
// CHECK-ABS-THUMB-NEXT:     1432:       60 47   bx      r12
// 0x1604 = arm_callee3
// CHECK-ABS-THUMB: __Thumbv7ABSLongThunk_arm_callee3:
// CHECK-ABS-THUMB-NEXT:     1434:   41 f2 04 6c     movw    r12, #5636
// CHECK-ABS-THUMB-NEXT:     1438:       c0 f2 00 0c     movt    r12, #0
// CHECK-ABS-THUMB-NEXT:     143c:       60 47   bx      r12

// CHECK-PI-THUMB: Disassembly of section .thumb_caller:
// CHECK-PI-THUMB-EMPTY:
// CHECK-PI-THUMB-NEXT: thumb_caller:
// CHECK-PI-THUMB-NEXT:     1400:       ff f7 7e ee     blx     #-772
// CHECK-PI-THUMB-NEXT:     1404:       ff f7 7c ee     blx     #-776
// CHECK-PI-THUMB-NEXT:     1408:       00 f0 0a b8     b.w     #20 <__ThumbV7PILongThunk_arm_callee1>
// CHECK-PI-THUMB-NEXT:     140c:       00 f0 0e b8     b.w     #28 <__ThumbV7PILongThunk_arm_callee2>
// CHECK-PI-THUMB-NEXT:     1410:       00 f0 12 b8     b.w     #36 <__ThumbV7PILongThunk_arm_callee3>
// CHECK-PI-THUMB-NEXT:     1414:       00 f0 04 80     beq.w   #8 <__ThumbV7PILongThunk_arm_callee1>
// CHECK-PI-THUMB-NEXT:     1418:       00 f0 08 80     beq.w   #16 <__ThumbV7PILongThunk_arm_callee2>
// CHECK-PI-THUMB-NEXT:     141c:       40 f0 0c 80     bne.w   #24 <__ThumbV7PILongThunk_arm_callee3>
// CHECK-PI-THUMB: __ThumbV7PILongThunk_arm_callee1:
// 0x1428 + 4 - 0x32c = 0x1100 = arm_callee1
// CHECK-PI-THUMB-NEXT:     1420:       4f f6 d4 4c     movw    r12, #64724
// CHECK-PI-THUMB-NEXT:     1424:       cf f6 ff 7c     movt    r12, #65535
// CHECK-PI-THUMB-NEXT:     1428:       fc 44   add     r12, pc
// CHECK-PI-THUMB-NEXT:     142a:       60 47   bx      r12
// CHECK-PI-THUMB: __ThumbV7PILongThunk_arm_callee2:
// 0x1434 + 4 + 0x1c8 = 0x1600 = arm_callee2
// CHECK-PI-THUMB-NEXT:     142c:       40 f2 c8 1c     movw    r12, #456
// CHECK-PI-THUMB-NEXT:     1430:       c0 f2 00 0c     movt    r12, #0
// CHECK-PI-THUMB-NEXT:     1434:       fc 44   add     r12, pc
// CHECK-PI-THUMB-NEXT:     1436:       60 47   bx      r12
// CHECK-PI-THUMB: __ThumbV7PILongThunk_arm_callee3:
// 0x1440 + 4 + 0x1c0 = 0x1604 = arm_callee3
// CHECK-PI-THUMB-NEXT:     1438:       40 f2 c0 1c     movw    r12, #448
// CHECK-PI-THUMB-NEXT:     143c:       c0 f2 00 0c     movt    r12, #0
// CHECK-PI-THUMB-NEXT:     1440:       fc 44   add     r12, pc
// CHECK-PI-THUMB-NEXT:     1442:       60 47   bx      r12

// CHECK-PI-THUMB-PLT: Disassembly of section .arm_caller:
// CHECK-PI-THUMB-PLT-EMPTY:
// CHECK-PI-THUMB-PLT-NEXT: thumb_caller:
// 0x1400 + 4 + 0x410 = 0x1814 = PLT(arm_callee1)
// CHECK-PI-THUMB-PLT-NEXT:    1400:    00 f0 08 ea     blx     #1040
// 0x1404 + 4 + 0x40c = 0x1814 = PLT(arm_callee1)
// CHECK-PI-THUMB-PLT-NEXT:    1404:    00 f0 06 ea     blx     #1036
// 0x1408 + 4 + 0x14 = 0x1420 = IWV(PLT(arm_callee1)
// CHECK-PI-THUMB-PLT-NEXT:    1408:    00 f0 0a b8     b.w     #20
// 0x140c + 4 + 0x1c = 0x142c = IWV(PLT(arm_callee2)
// CHECK-PI-THUMB-PLT-NEXT:    140c:    00 f0 0e b8     b.w     #28
// 0x1410 + 4 + 0x24 = 0x1438 = IWV(PLT(arm_callee3)
// CHECK-PI-THUMB-PLT-NEXT:    1410:    00 f0 12 b8     b.w     #36
// 0x1414 + 4 + 8 = 0x1420    = IWV(PLT(arm_callee1)
// CHECK-PI-THUMB-PLT-NEXT:    1414:    00 f0 04 80     beq.w   #8
// 0x1418 + 4 + 0x10 = 0x142c = IWV(PLT(arm_callee2)
// CHECK-PI-THUMB-PLT-NEXT:    1418:    00 f0 08 80     beq.w   #16
// 0x141c + 4 + 0x18 = 0x1438 = IWV(PLT(arm_callee3)
// CHECK-PI-THUMB-PLT-NEXT:    141c:    40 f0 0c 80     bne.w   #24
// 0x1428 + 4 + 0x3e8 = 0x1814 = PLT(arm_callee1)
// CHECK-PI-THUMB-PLT-NEXT:    1420:    40 f2 e8 3c     movw    r12, #1000
// CHECK-PI-THUMB-PLT-NEXT:    1424:    c0 f2 00 0c     movt    r12, #0
// CHECK-PI-THUMB-PLT-NEXT:    1428:    fc 44   add     r12, pc
// CHECK-PI-THUMB-PLT-NEXT:    142a:    60 47   bx      r12
// 0x1434 + 4 + 0x3ec = 0x1824 = PLT(arm_callee2)
// CHECK-PI-THUMB-PLT-NEXT:    142c:    40 f2 ec 3c     movw    r12, #1004
// CHECK-PI-THUMB-PLT-NEXT:    1430:    c0 f2 00 0c     movt    r12, #0
// CHECK-PI-THUMB-PLT-NEXT:    1434:    fc 44   add     r12, pc
// CHECK-PI-THUMB-PLT-NEXT:    1436:    60 47   bx      r12
// 0x1440 + 4 + 0x3f0 = 0x1834 = PLT(arm_callee3)
// CHECK-PI-THUMB-PLT-NEXT:    1438:    40 f2 f0 3c     movw    r12, #1008
// CHECK-PI-THUMB-PLT-NEXT:    143c:    c0 f2 00 0c     movt    r12, #0
// CHECK-PI-THUMB-PLT-NEXT:    1440:    fc 44   add     r12, pc
// CHECK-PI-THUMB-PLT-NEXT:    1442:    60 47   bx      r12

// Target Sections for thunks at a higher address than the callers.
.section .R_ARM_JUMP24_callee_high, "ax", %progbits
 .thumb
 .balign 0x100
 .globl thumb_callee2
 .type thumb_callee2, %function
thumb_callee2:
 bx lr

 .globl thumb_callee3
 .type thumb_callee3, %function
thumb_callee3:
 bx lr
// CHECK-THUMB:  Disassembly of section .R_ARM_JUMP24_callee_2:
// CHECK-THUMB-EMPTY:
// CHECK-THUMB-NEXT: thumb_callee2:
// CHECK-THUMB-NEXT: 1500:       70 47   bx      lr
// CHECK-THUMB: thumb_callee3:
// CHECK-THUMB-NEXT: 1502:       70 47   bx      lr

 .section .R_ARM_THM_JUMP_callee_high, "ax", %progbits
 .arm
 .balign 0x100
 .globl arm_callee2
 .type arm_callee2, %function
arm_callee2:
 bx lr
 .globl arm_callee3
 .type arm_callee3, %function
arm_callee3:
 bx lr
// CHECK-ARM: Disassembly of section .R_ARM_THM_JUMP_callee_2:
// CHECK-ARM-EMPTY:
// CHECK-ARM-NEXT: arm_callee2:
// CHECK-ARM-NEXT:     1600:     1e ff 2f e1     bx      lr
// CHECK-ARM: arm_callee3:
// CHECK-ARM-NEXT:     1604:     1e ff 2f e1     bx      lr

// _start section just calls the arm and thumb calling sections
 .text
 .arm
 .globl _start
 .balign 0x100
 .type _start, %function
_start:
 bl arm_caller
 bl thumb_caller
 bx lr


// CHECK-PI-ARM-PLT: Disassembly of section .plt:
// CHECK-PI-ARM-PLT-EMPTY:
// CHECK-PI-ARM-PLT-NEXT: .plt:
// CHECK-PI-ARM-PLT-NEXT: 17b0:         04 e0 2d e5     str     lr, [sp, #-4]!
// CHECK-PI-ARM-PLT-NEXT: 17b4:         04 e0 9f e5     ldr     lr, [pc, #4]
// CHECK-PI-ARM-PLT-NEXT: 17b8:         0e e0 8f e0     add     lr, pc, lr
// CHECK-PI-ARM-PLT-NEXT: 17bc:         08 f0 be e5     ldr     pc, [lr, #8]!
// CHECK-PI-ARM-PLT-NEXT: 17c0:         d4 00 00 00
// 0x17c8 + 8 + 0xd0 = 0x18a0 arm_caller
// CHECK-PI-ARM-PLT-NEXT: 17c4:         04 c0 9f e5     ldr     r12, [pc, #4]
// CHECK-PI-ARM-PLT-NEXT: 17c8:         0f c0 8c e0     add     r12, r12, pc
// CHECK-PI-ARM-PLT-NEXT: 17cc:         00 f0 9c e5     ldr     pc, [r12]
// CHECK-PI-ARM-PLT-NEXT: 17d0:         d0 00 00 00
// 0x17d8 + 8 + 0xc4 = 0x18a4 thumb_caller
// CHECK-PI-ARM-PLT-NEXT: 17d4:         04 c0 9f e5     ldr     r12, [pc, #4]
// CHECK-PI-ARM-PLT-NEXT: 17d8:         0f c0 8c e0     add     r12, r12, pc
// CHECK-PI-ARM-PLT-NEXT: 17dc:         00 f0 9c e5     ldr     pc, [r12]
// CHECK-PI-ARM-PLT-NEXT: 17e0:         c4 00 00 00
// 0x17e8 + 8 + 0xb8 = 0x18a8 thumb_callee1
// CHECK-PI-ARM-PLT-NEXT: 17e4:         04 c0 9f e5     ldr     r12, [pc, #4]
// CHECK-PI-ARM-PLT-NEXT: 17e8:         0f c0 8c e0     add     r12, r12, pc
// CHECK-PI-ARM-PLT-NEXT: 17ec:         00 f0 9c e5     ldr     pc, [r12]
// CHECK-PI-ARM-PLT-NEXT: 17f0:         b8 00 00 00
// 0x17f8 + 8 + 0xac = 0x18ac thumb_callee2
// CHECK-PI-ARM-PLT-NEXT: 17f4:         04 c0 9f e5     ldr     r12, [pc, #4]
// CHECK-PI-ARM-PLT-NEXT: 17f8:         0f c0 8c e0     add     r12, r12, pc
// CHECK-PI-ARM-PLT-NEXT: 17fc:         00 f0 9c e5     ldr     pc, [r12]
// CHECK-PI-ARM-PLT-NEXT: 1800:         ac 00 00 00
// 0x1808 + 8 + 0xa0 = 0x18b0 thumb_callee3
// CHECK-PI-ARM-PLT-NEXT: 1804:         04 c0 9f e5     ldr     r12, [pc, #4]
// CHECK-PI-ARM-PLT-NEXT: 1808:         0f c0 8c e0     add     r12, r12, pc
// CHECK-PI-ARM-PLT-NEXT: 180c:         00 f0 9c e5     ldr     pc, [r12]
// CHECK-PI-ARM-PLT-NEXT: 1810:         a0 00 00 00
// 0x1818 + 8 + 0x94 = 0x18b4 arm_callee1
// CHECK-PI-ARM-PLT-NEXT: 1814:         04 c0 9f e5     ldr     r12, [pc, #4]
// CHECK-PI-ARM-PLT-NEXT: 1818:         0f c0 8c e0     add     r12, r12, pc
// CHECK-PI-ARM-PLT-NEXT: 181c:         00 f0 9c e5     ldr     pc, [r12]
// CHECK-PI-ARM-PLT-NEXT: 1820:         94 00 00 00
// 0x1828 + 8 + 0x88 = 0x18b8 arm_callee2
// CHECK-PI-ARM-PLT-NEXT: 1824:         04 c0 9f e5     ldr     r12, [pc, #4]
// CHECK-PI-ARM-PLT-NEXT: 1828:         0f c0 8c e0     add     r12, r12, pc
// CHECK-PI-ARM-PLT-NEXT: 182c:         00 f0 9c e5     ldr     pc, [r12]
// CHECK-PI-ARM-PLT-NEXT: 1830:         88 00 00 00
// 0x1838 + 8 + 0x7c = 0x18bc arm_callee3
// CHECK-PI-ARM-PLT-NEXT: 1834:         04 c0 9f e5     ldr     r12, [pc, #4]
// CHECK-PI-ARM-PLT-NEXT: 1838:         0f c0 8c e0     add     r12, r12, pc
// CHECK-PI-ARM-PLT-NEXT: 183c:         00 f0 9c e5     ldr     pc, [r12]
// CHECK-PI-ARM-PLT-NEXT: 1840:         7c 00 00 00

// CHECK-DSO-REL:      0x18C0 R_ARM_JUMP_SLOT arm_caller
// CHECK-DSO-REL-NEXT: 0x18C4 R_ARM_JUMP_SLOT thumb_caller
// CHECK-DSO-REL-NEXT: 0x18C8 R_ARM_JUMP_SLOT thumb_callee1
// CHECK-DSO-REL-NEXT: 0x18CC R_ARM_JUMP_SLOT thumb_callee2
// CHECK-DSO-REL-NEXT: 0x18D0 R_ARM_JUMP_SLOT thumb_callee3
// CHECK-DSO-REL-NEXT: 0x18D4 R_ARM_JUMP_SLOT arm_callee1
// CHECK-DSO-REL-NEXT: 0x18D8 R_ARM_JUMP_SLOT arm_callee2
// CHECK-DSO-REL-NEXT: 0x18DC R_ARM_JUMP_SLOT arm_callee3