| // REQUIRES: arm |
| // RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t |
| // RUN: echo "SECTIONS {" > %t.script |
| // RUN: echo " .text_low 0x130 : { *(.text) }" >> %t.script |
| // RUN: echo " .text_high 0xf0000000 : AT(0x1000) { *(.text_high) }" >> %t.script |
| // RUN: echo " } " >> %t.script |
| // RUN: ld.lld --script %t.script --pie --static %t -o %t2 |
| // RUN: llvm-objdump -d --triple=armv7a-none-linux-gnueabi --no-show-raw-insn %t2 | FileCheck %s |
| |
| // RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t3 |
| // RUN: ld.lld --script %t.script --pie %t3 -o %t4 |
| // RUN: llvm-objdump -d --triple=thumbv7a-none-linux-gnueabi --no-show-raw-insn %t4 | FileCheck --check-prefix=CHECK-THUMB %s |
| |
| // Check that we can create Arm and Thumb v7a Position Independent Thunks that |
| // can span the address space without triggering overflow errors. We use an |
| // AT(0x1000) for .text_high to avoid creating an almost 4Gb size file. |
| .syntax unified |
| .text |
| .global _start |
| .type _start, %function |
| _start: |
| bl high |
| bx lr |
| |
| .section .text_high, "ax", %progbits |
| .global high |
| .type high, %function |
| high: |
| bl _start |
| bx lr |
| |
| // ARMv7a instructions and relocations. |
| |
| // CHECK: Disassembly of section .text_low: |
| // CHECK-EMPTY: |
| // CHECK-NEXT: <_start>: |
| // CHECK-NEXT: 130: bl #0 <__ARMV7PILongThunk_high> |
| // CHECK-NEXT: 134: bx lr |
| |
| // CHECK: <__ARMV7PILongThunk_high>: |
| // CHECK-NEXT: 138: movw r12, #65208 |
| // CHECK-NEXT: 13c: movt r12, #61439 |
| // 0x140 + 0xEFFF0000 + 0x0000FEB8 + 8 = 0xf0000000 = high |
| // CHECK-NEXT: 140: add r12, r12, pc |
| // CHECK-NEXT: 144: bx r12 |
| |
| // CHECK: Disassembly of section .text_high: |
| // CHECK-EMPTY: |
| // CHECK-NEXT: <high>: |
| // CHECK-NEXT: f0000000: bl #0 <__ARMV7PILongThunk__start> |
| // CHECK-NEXT: f0000004: bx lr |
| |
| // CHECK: <__ARMV7PILongThunk__start>: |
| // CHECK-NEXT: f0000008: movw r12, #280 |
| // CHECK-NEXT: f000000c: movt r12, #4096 |
| // 0xf0000010 + 0x10000000 + 0x0000118 + 8 = bits32(0x100000130),0x130 = _start |
| // CHECK-NEXT: f0000010: add r12, r12, pc |
| // CHECK-NEXT: f0000014: bx r12 |
| |
| // Thumbv7a instructions and relocations |
| // CHECK-THUMB: Disassembly of section .text_low: |
| // CHECK-THUMB-EMPTY: |
| // CHECK-THUMB-NEXT: <_start>: |
| // CHECK-THUMB-NEXT: 130: bl #4 |
| // CHECK-THUMB-NEXT: 134: bx lr |
| // CHECK-THUMB-NEXT: 136: bmi #-88 |
| |
| // CHECK-THUMB: <__ThumbV7PILongThunk_high>: |
| // CHECK-THUMB-NEXT: 138: movw r12, #65213 |
| // CHECK-THUMB-NEXT: 13c: movt r12, #61439 |
| // 0x140 + 0xEFFF0000 + 0x0000FEBD + 4 = 0xf0000001 = high |
| // CHECK-THUMB-NEXT: 140: add r12, pc |
| // CHECK-THUMB-NEXT: 142: bx r12 |
| |
| // CHECK-THUMB: Disassembly of section .text_high: |
| // CHECK-THUMB-EMPTY: |
| // CHECK-THUMB-NEXT: <high>: |
| // CHECK-THUMB-NEXT: f0000000: bl #4 |
| // CHECK-THUMB-NEXT: f0000004: bx lr |
| |
| // CHECK-THUMB: <__ThumbV7PILongThunk__start>: |
| // CHECK-THUMB-NEXT: f0000008: movw r12, #285 |
| // CHECK-THUMB-NEXT: f000000c: movt r12, #4096 |
| // 0xf0000010 + 0x10000000 + 0x000011d +4 = bits32(0x100000131),0x131 = _start |
| // CHECK-THUMB-NEXT: f0000010: add r12, pc |
| // CHECK-THUMB-NEXT: f0000012: bx r12 |
