1// REQUIRES: arm 2// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t 3// RUN: echo "SECTIONS {" > %t.script 4// RUN: echo " .text_low 0x130 : { *(.text) }" >> %t.script 5// RUN: echo " .text_high 0xf0000000 : AT(0x1000) { *(.text_high) }" >> %t.script 6// RUN: echo " } " >> %t.script 7// RUN: ld.lld --script %t.script --pie --static %t -o %t2 8// RUN: llvm-objdump --no-print-imm-hex -d --triple=armv7a-none-linux-gnueabi --no-show-raw-insn %t2 | FileCheck %s 9 10// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t3 11// RUN: ld.lld --script %t.script --pie %t3 -o %t4 12// RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn %t4 | FileCheck --check-prefix=CHECK-THUMB %s 13 14// Check that we can create Arm and Thumb v7a Position Independent Thunks that 15// can span the address space without triggering overflow errors. We use an 16// AT(0x1000) for .text_high to avoid creating an almost 4Gb size file. 17 .syntax unified 18 .text 19 .global _start 20 .type _start, %function 21_start: 22 bl high 23 bx lr 24 25 .section .text_high, "ax", %progbits 26 .global high 27 .type high, %function 28high: 29 bl _start 30 bx lr 31 32// ARMv7a instructions and relocations. 33 34// CHECK: Disassembly of section .text_low: 35// CHECK-EMPTY: 36// CHECK-NEXT: <_start>: 37// CHECK-NEXT: 130: bl 0x138 <__ARMV7PILongThunk_high> 38// CHECK-NEXT: 134: bx lr 39 40// CHECK: <__ARMV7PILongThunk_high>: 41// CHECK-NEXT: 138: movw r12, #65208 42// CHECK-NEXT: 13c: movt r12, #61439 43// 0x140 + 0xEFFF0000 + 0x0000FEB8 + 8 = 0xf0000000 = high 44// CHECK-NEXT: 140: add r12, r12, pc 45// CHECK-NEXT: 144: bx r12 46 47// CHECK: Disassembly of section .text_high: 48// CHECK-EMPTY: 49// CHECK-NEXT: <high>: 50// CHECK-NEXT: f0000000: bl 0xf0000008 <__ARMV7PILongThunk__start> 51// CHECK-NEXT: f0000004: bx lr 52 53// CHECK: <__ARMV7PILongThunk__start>: 54// CHECK-NEXT: f0000008: movw r12, #280 55// CHECK-NEXT: f000000c: movt r12, #4096 56// 0xf0000010 + 0x10000000 + 0x0000118 + 8 = bits32(0x100000130),0x130 = _start 57// CHECK-NEXT: f0000010: add r12, r12, pc 58// CHECK-NEXT: f0000014: bx r12 59 60// Thumbv7a instructions and relocations 61// CHECK-THUMB: Disassembly of section .text_low: 62// CHECK-THUMB-EMPTY: 63// CHECK-THUMB-NEXT: <_start>: 64// CHECK-THUMB-NEXT: 130: bl 0x138 <__ThumbV7PILongThunk_high> 65// CHECK-THUMB-NEXT: 134: bx lr 66 67// CHECK-THUMB: <__ThumbV7PILongThunk_high>: 68// CHECK-THUMB-NEXT: 138: movw r12, #65213 69// CHECK-THUMB-NEXT: 13c: movt r12, #61439 70// 0x140 + 0xEFFF0000 + 0x0000FEBD + 4 = 0xf0000001 = high 71// CHECK-THUMB-NEXT: 140: add r12, pc 72// CHECK-THUMB-NEXT: 142: bx r12 73 74// CHECK-THUMB: Disassembly of section .text_high: 75// CHECK-THUMB-EMPTY: 76// CHECK-THUMB-NEXT: <high>: 77// CHECK-THUMB-NEXT: f0000000: bl 0xf0000008 <__ThumbV7PILongThunk__start> 78// CHECK-THUMB-NEXT: f0000004: bx lr 79 80// CHECK-THUMB: <__ThumbV7PILongThunk__start>: 81// CHECK-THUMB-NEXT: f0000008: movw r12, #285 82// CHECK-THUMB-NEXT: f000000c: movt r12, #4096 83// 0xf0000010 + 0x10000000 + 0x000011d +4 = bits32(0x100000131),0x131 = _start 84// CHECK-THUMB-NEXT: f0000010: add r12, pc 85// CHECK-THUMB-NEXT: f0000012: bx r12 86