arm-thumb-plt-range-thunk-os.s
4.84 KB
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// REQUIRES: arm
// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
// RUN: ld.lld %t --shared --icf=all -o %t.so
// The output file is large, most of it zeroes. We dissassemble only the
// parts we need to speed up the test and avoid a large output file
// RUN: llvm-objdump -d %t.so --start-address=0x2000000 --stop-address=0x2000018 --triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK1 %s
// RUN: llvm-objdump -d %t.so --start-address=0x2800004 --stop-address=0x2800034 --triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK2 %s
// RUN: llvm-objdump -d %t.so --start-address=0x4000000 --stop-address=0x4000010 --triple=thumbv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK3 %s
// RUN: llvm-objdump -d %t.so --start-address=0x4000010 --stop-address=0x4000100 --triple=armv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK4 %s
// RUN: rm %t.so
.syntax unified
.thumb
// Make sure that we generate a range extension thunk to a PLT entry
.section ".text.1", "ax", %progbits
.global sym1
.global elsewhere
.type elsewhere, %function
.global preemptible
.type preemptible, %function
.global far_preemptible
.type far_preemptible, %function
.global far_nonpreemptible
.hidden far_nonpreemptible
.type far_nonpreemptible, %function
.global far_nonpreemptible_alias
.hidden far_nonpreemptible_alias
.type far_nonpreemptible_alias, %function
sym1:
bl elsewhere
bl preemptible
bx lr
preemptible:
bl far_preemptible
bl far_nonpreemptible
bl far_nonpreemptible_alias
bx lr
// CHECK1: Disassembly of section .text:
// CHECK1-EMPTY:
// CHECK1-NEXT: <sym1>:
// CHECK1-NEXT: 2000000: 00 f0 00 d8 bl #8388608
// CHECK1-NEXT: 2000004: 00 f0 04 d8 bl #8388616
// CHECK1-NEXT: 2000008: 70 47 bx lr
// CHECK1: <preemptible>:
// CHECK1-NEXT: 200000a: 00 f0 07 d8 bl #8388622
// CHECK1-NEXT: 200000e: 00 f0 0b d8 bl #8388630
// CHECK1-NEXT: 2000012: 00 f0 09 d8 bl #8388626
// CHECK1-NEXT: 2000016: 70 47 bx lr
.section .text.2, "ax", %progbits
.balign 0x0800000
bx lr
// CHECK2: <__ThumbV7PILongThunk_elsewhere>:
// CHECK2-NEXT: 2800004: 40 f2 20 0c movw r12, #32
// CHECK2-NEXT: 2800008: c0 f2 80 1c movt r12, #384
// CHECK2-NEXT: 280000c: fc 44 add r12, pc
// CHECK2-NEXT: 280000e: 60 47 bx r12
// CHECK2: <__ThumbV7PILongThunk_preemptible>:
// CHECK2-NEXT: 2800010: 40 f2 24 0c movw r12, #36
// CHECK2-NEXT: 2800014: c0 f2 80 1c movt r12, #384
// CHECK2-NEXT: 2800018: fc 44 add r12, pc
// CHECK2-NEXT: 280001a: 60 47 bx r12
// CHECK2: <__ThumbV7PILongThunk_far_preemptible>:
// CHECK2-NEXT: 280001c: 40 f2 28 0c movw r12, #40
// CHECK2-NEXT: 2800020: c0 f2 80 1c movt r12, #384
// CHECK2-NEXT: 2800024: fc 44 add r12, pc
// CHECK2-NEXT: 2800026: 60 47 bx r12
// CHECK2: <__ThumbV7PILongThunk_far_nonpreemptible>:
// CHECK2-NEXT: 2800028: 4f f6 cd 7c movw r12, #65485
// CHECK2-NEXT: 280002c: c0 f2 7f 1c movt r12, #383
// CHECK2-NEXT: 2800030: fc 44 add r12, pc
// CHECK2-NEXT: 2800032: 60 47 bx r12
.section .text.3, "ax", %progbits
.balign 0x2000000
far_preemptible:
far_nonpreemptible:
bl elsewhere
.section .text.4, "ax", %progbits
.balign 0x2000000
far_nonpreemptible_alias:
bl elsewhere
// CHECK3: <far_preemptible>:
// CHECK3: 4000000: 00 f0 16 e8 blx #44
// CHECK4: Disassembly of section .plt:
// CHECK4-EMPTY:
// CHECK4-NEXT: <$a>:
// CHECK4-NEXT: 4000010: 04 e0 2d e5 str lr, [sp, #-4]!
// CHECK4-NEXT: 4000014: 00 e6 8f e2 add lr, pc, #0, #12
// CHECK4-NEXT: 4000018: 20 ea 8e e2 add lr, lr, #32
// CHECK4-NEXT: 400001c: a4 f0 be e5 ldr pc, [lr, #164]!
// CHECK4: <$d>:
// CHECK4-NEXT: 4000020: d4 d4 d4 d4 .word 0xd4d4d4d4
// CHECK4-NEXT: 4000024: d4 d4 d4 d4 .word 0xd4d4d4d4
// CHECK4-NEXT: 4000028: d4 d4 d4 d4 .word 0xd4d4d4d4
// CHECK4-NEXT: 400002c: d4 d4 d4 d4 .word 0xd4d4d4d4
// CHECK4: <$a>:
// CHECK4-NEXT: 4000030: 00 c6 8f e2 add r12, pc, #0, #12
// CHECK4-NEXT: 4000034: 20 ca 8c e2 add r12, r12, #32
// CHECK4-NEXT: 4000038: 8c f0 bc e5 ldr pc, [r12, #140]!
// CHECK4: <$d>:
// CHECK4-NEXT: 400003c: d4 d4 d4 d4 .word 0xd4d4d4d4
// CHECK4: <$a>:
// CHECK4-NEXT: 4000040: 00 c6 8f e2 add r12, pc, #0, #12
// CHECK4-NEXT: 4000044: 20 ca 8c e2 add r12, r12, #32
// CHECK4-NEXT: 4000048: 80 f0 bc e5 ldr pc, [r12, #128]!
// CHECK4: <$d>:
// CHECK4-NEXT: 400004c: d4 d4 d4 d4 .word 0xd4d4d4d4
// CHECK4: <$a>:
// CHECK4-NEXT: 4000050: 00 c6 8f e2 add r12, pc, #0, #12
// CHECK4-NEXT: 4000054: 20 ca 8c e2 add r12, r12, #32
// CHECK4-NEXT: 4000058: 74 f0 bc e5 ldr pc, [r12, #116]!
// CHECK4: <$d>:
// CHECK4-NEXT: 400005c: d4 d4 d4 d4 .word 0xd4d4d4d4