| // REQUIRES: arm |
| // RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv7a-none-linux-gnueabi %S/Inputs/arm-shared.s -o %t |
| // RUN: ld.lld %t --shared -o %t.so |
| // RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t2 |
| // RUN: ld.lld %t2 %t.so -o %t3 |
| // RUN: llvm-objdump -d -triple=armv7a-none-linux-gnueabi -start-address=69632 -stop-address=69664 %t3 | FileCheck %s |
| |
| // When we are dynamic linking, undefined weak references have a PLT entry so |
| // we must create a thunk for the branch to the PLT entry. |
| |
| .text |
| .globl bar2 |
| .weak undefined_weak_we_expect_a_plt_entry_for |
| _start: |
| .globl _start |
| .type _start, %function |
| b undefined_weak_we_expect_a_plt_entry_for |
| bl bar2 |
| // Create 32 Mb gap between the call to the weak reference and the PLT so that |
| // the b and bl need a range-extension thunk. |
| .section .text.1, "ax", %progbits |
| .space 32 * 1024 * 1024 |
| |
| // CHECK: Disassembly of section .text: |
| // CHECK-NEXT: _start: |
| // CHECK-NEXT: 11000: 00 00 00 ea b #0 <__ARMv7ABSLongThunk_undefined_weak_we_expect_a_plt_entry_for> |
| // CHECK-NEXT: 11004: 02 00 00 eb bl #8 <__ARMv7ABSLongThunk_bar2> |
| // CHECK: __ARMv7ABSLongThunk_undefined_weak_we_expect_a_plt_entry_for: |
| // CHECK-NEXT: 11008: 40 c0 01 e3 movw r12, #4160 |
| // CHECK-NEXT: 1100c: 01 c2 40 e3 movt r12, #513 |
| // CHECK-NEXT: 11010: 1c ff 2f e1 bx r12 |
| // CHECK: __ARMv7ABSLongThunk_bar2: |
| // CHECK-NEXT: 11014: 50 c0 01 e3 movw r12, #4176 |
| // CHECK-NEXT: 11018: 01 c2 40 e3 movt r12, #513 |
| // CHECK-NEXT: 1101c: 1c ff 2f e1 bx r12 |
