| // REQUIRES: arm |
| // RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t |
| // RUN: ld.lld %t --shared -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=0x1000004 --stop-address=0x100001c | FileCheck --check-prefix=CHECK1 %s |
| // RUN: llvm-objdump -d %t.so --start-address=0x1100008 --stop-address=0x1100022 | FileCheck --check-prefix=CHECK2 %s |
| // RUN: llvm-objdump -d %t.so --start-address=0x1100020 --stop-address=0x1100064 --triple=armv7a-linux-gnueabihf | FileCheck --check-prefix=CHECK3 %s |
| |
| /// A branch to a Thunk that we create on pass N, can drift out of range if |
| /// other Thunks are added in between. In this case we must create a new Thunk |
| /// for the branch that is in range. We also need to make sure that if the |
| /// destination of the Thunk is in the PLT the new Thunk also targets the PLT |
| .syntax unified |
| .thumb |
| |
| .macro FUNCTION suff |
| .section .text.\suff\(), "ax", %progbits |
| .thumb |
| .balign 0x80000 |
| .globl tfunc\suff\() |
| .type tfunc\suff\(), %function |
| tfunc\suff\(): |
| bx lr |
| .endm |
| |
| .globl imported |
| .type imported, %function |
| .globl imported2 |
| .type imported2, %function |
| .globl imported3 |
| .type imported3, %function |
| .globl imported4 |
| .type imported4, %function |
| FUNCTION 00 |
| FUNCTION 01 |
| FUNCTION 02 |
| FUNCTION 03 |
| FUNCTION 04 |
| FUNCTION 05 |
| FUNCTION 06 |
| FUNCTION 07 |
| FUNCTION 08 |
| FUNCTION 09 |
| FUNCTION 10 |
| FUNCTION 11 |
| FUNCTION 12 |
| FUNCTION 13 |
| FUNCTION 14 |
| FUNCTION 15 |
| FUNCTION 16 |
| FUNCTION 17 |
| FUNCTION 18 |
| FUNCTION 19 |
| FUNCTION 20 |
| FUNCTION 21 |
| FUNCTION 22 |
| FUNCTION 23 |
| FUNCTION 24 |
| FUNCTION 25 |
| FUNCTION 26 |
| FUNCTION 27 |
| FUNCTION 28 |
| FUNCTION 29 |
| FUNCTION 30 |
| FUNCTION 31 |
| /// Precreated Thunk Pool goes here |
| // CHECK1: <__ThumbV7PILongThunk_imported>: |
| // CHECK1-NEXT: 1000004: 40 f2 30 0c movw r12, #48 |
| // CHECK1-NEXT: 1000008: c0 f2 10 0c movt r12, #16 |
| // CHECK1-NEXT: 100000c: fc 44 add r12, pc |
| // CHECK1-NEXT: 100000e: 60 47 bx r12 |
| // CHECK1: <__ThumbV7PILongThunk_imported2>: |
| // CHECK1-NEXT: 1000010: 40 f2 34 0c movw r12, #52 |
| // CHECK1-NEXT: 1000014: c0 f2 10 0c movt r12, #16 |
| // CHECK1-NEXT: 1000018: fc 44 add r12, pc |
| // CHECK1-NEXT: 100001a: 60 47 bx r12 |
| |
| .section .text.32, "ax", %progbits |
| .space 0x80000 |
| .section .text.33, "ax", %progbits |
| .space 0x80000 - 0x14 |
| .section .text.34, "ax", %progbits |
| /// Need a Thunk to the PLT entry, can use precreated ThunkSection |
| .globl callers |
| .type callers, %function |
| callers: |
| b.w imported |
| beq.w imported |
| b.w imported2 |
| // CHECK2: <__ThumbV7PILongThunk_imported>: |
| // CHECK2-NEXT: 1100008: 40 f2 2c 0c movw r12, #44 |
| // CHECK2-NEXT: 110000c: c0 f2 00 0c movt r12, #0 |
| // CHECK2-NEXT: 1100010: fc 44 add r12, pc |
| // CHECK2-NEXT: 1100012: 60 47 bx r12 |
| // CHECK2: <callers>: |
| // CHECK2-NEXT: 1100014: ff f6 f6 bf b.w 0x1000004 <__ThumbV7PILongThunk_imported> |
| // CHECK2-NEXT: 1100018: 3f f4 f6 af beq.w 0x1100008 <__ThumbV7PILongThunk_imported> |
| // CHECK2-NEXT: 110001c: ff f6 f8 bf b.w 0x1000010 <__ThumbV7PILongThunk_imported2> |
| |
| // CHECK3: Disassembly of section .plt: |
| // CHECK3-EMPTY: |
| // CHECK3-NEXT: <$a>: |
| // CHECK3-NEXT: 1100020: 04 e0 2d e5 str lr, [sp, #-4]! |
| // CHECK3-NEXT: 1100024: 00 e6 8f e2 add lr, pc, #0, #12 |
| // CHECK3-NEXT: 1100028: 20 ea 8e e2 add lr, lr, #32 |
| // CHECK3-NEXT: 110002c: 94 f0 be e5 ldr pc, [lr, #148]! |
| // CHECK3: <$d>: |
| // CHECK3-NEXT: 1100030: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // CHECK3-NEXT: 1100034: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // CHECK3-NEXT: 1100038: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // CHECK3-NEXT: 110003c: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // CHECK3: <$a>: |
| // CHECK3-NEXT: 1100040: 00 c6 8f e2 add r12, pc, #0, #12 |
| // CHECK3-NEXT: 1100044: 20 ca 8c e2 add r12, r12, #32 |
| // CHECK3-NEXT: 1100048: 7c f0 bc e5 ldr pc, [r12, #124]! |
| // CHECK3: <$d>: |
| // CHECK3-NEXT: 110004c: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // CHECK3: <$a>: |
| // CHECK3-NEXT: 1100050: 00 c6 8f e2 add r12, pc, #0, #12 |
| // CHECK3-NEXT: 1100054: 20 ca 8c e2 add r12, r12, #32 |
| // CHECK3-NEXT: 1100058: 70 f0 bc e5 ldr pc, [r12, #112]! |
| // CHECK3: <$d>: |
| // CHECK3-NEXT: 110005c: d4 d4 d4 d4 .word 0xd4d4d4d4 |
