blob: ca71f45b4a2b7f4af69c836c7d25cd6a7a1ac9c8 [file] [log] [blame]
// REQUIRES: arm
// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv7a-none-linux-gnueabi %S/Inputs/arm-shared.s -o %t1.o
// RUN: ld.lld %t1.o --shared -soname=t1.so -o %t1.so
// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.o
// RUN: ld.lld %t.o %t1.so -o %t
// RUN: llvm-objdump -d --triple=armv7a-none-linux-gnueabi --start-address=0x201e4 --stop-address=0x20204 %t | 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-EMPTY:
// CHECK-NEXT: <_start>:
// CHECK-NEXT: 201e4: 00 00 00 ea b 0x201ec <__ARMv7ABSLongThunk_undefined_weak_we_expect_a_plt_entry_for>
// CHECK-NEXT: 201e8: 02 00 00 eb bl 0x201f8 <__ARMv7ABSLongThunk_bar2>
// CHECK: <__ARMv7ABSLongThunk_undefined_weak_we_expect_a_plt_entry_for>:
// CHECK-NEXT: 201ec: 30 c2 00 e3 movw r12, #560
// CHECK-NEXT: 201f0: 02 c2 40 e3 movt r12, #514
// CHECK-NEXT: 201f4: 1c ff 2f e1 bx r12
// CHECK: <__ARMv7ABSLongThunk_bar2>:
// CHECK-NEXT: 201f8: 40 c2 00 e3 movw r12, #576
// CHECK-NEXT: 201fc: 02 c2 40 e3 movt r12, #514
// CHECK-NEXT: 20200: 1c ff 2f e1 bx r12