1// REQUIRES: arm 2// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv6-none-linux-gnueabi %s -o %t 3// RUN: ld.lld %t -o %t2 4// RUN: llvm-objdump --no-print-imm-hex -d --triple=armv6-none-linux-gnueabi --start-address=0x21000 --stop-address=0x21008 %t2 | FileCheck --check-prefix=CHECK-ARM1 %s 5// RUN: llvm-objdump --no-print-imm-hex -d --triple=thumbv6-none-linux-gnueabi %t2 --start-address=0x21008 --stop-address=0x2100c | FileCheck --check-prefix=CHECK-THUMB1 %s 6// RUN: llvm-objdump --no-print-imm-hex -d --triple=armv6-none-linux-gnueabi --start-address=0x22100c --stop-address=0x221014 %t2 | FileCheck --check-prefix=CHECK-ARM2 %s 7// RUN: llvm-objdump --no-print-imm-hex -d --triple=thumbv6-none-linux-gnueabi %t2 --start-address=0x622000 --stop-address=0x622002 | FileCheck --check-prefix=CHECK-THUMB2 %s 8 9// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv6eb-none-linux-gnueabi %s -o %t 10// RUN: ld.lld %t -o %t2 11// RUN: llvm-objdump --no-print-imm-hex -d --triple=armv6eb-none-linux-gnueabi --start-address=0x21000 --stop-address=0x21008 %t2 | FileCheck --check-prefix=CHECK-ARM1 %s 12// RUN: llvm-objdump --no-print-imm-hex -d --triple=thumbv6eb-none-linux-gnueabi %t2 --start-address=0x21008 --stop-address=0x2100c | FileCheck --check-prefix=CHECK-THUMB1 %s 13// RUN: llvm-objdump --no-print-imm-hex -d --triple=armv6eb-none-linux-gnueabi --start-address=0x22100c --stop-address=0x221014 %t2 | FileCheck --check-prefix=CHECK-ARM2-EB %s 14// RUN: llvm-objdump --no-print-imm-hex -d --triple=thumbv6eb-none-linux-gnueabi %t2 --start-address=0x622000 --stop-address=0x622002 | FileCheck --check-prefix=CHECK-THUMB2 %s 15 16// RUN: ld.lld --be8 %t -o %t2 17// RUN: llvm-objdump --no-print-imm-hex -d --triple=armv6eb-none-linux-gnueabi --start-address=0x21000 --stop-address=0x21008 %t2 | FileCheck --check-prefix=CHECK-ARM1 %s 18// RUN: llvm-objdump --no-print-imm-hex -d --triple=thumbv6eb-none-linux-gnueabi %t2 --start-address=0x21008 --stop-address=0x2100c | FileCheck --check-prefix=CHECK-THUMB1 %s 19// RUN: llvm-objdump --no-print-imm-hex -d --triple=armv6eb-none-linux-gnueabi --start-address=0x22100c --stop-address=0x221014 %t2 | FileCheck --check-prefix=CHECK-ARM2-EB %s 20// RUN: llvm-objdump --no-print-imm-hex -d --triple=thumbv6eb-none-linux-gnueabi %t2 --start-address=0x622000 --stop-address=0x622002 | FileCheck --check-prefix=CHECK-THUMB2 %s 21 22/// On Arm v6 the range of a Thumb BL instruction is only 4 megabytes as the 23/// extended range encoding is not supported. The following example has a Thumb 24/// BL that is out of range on ARM v6 and requires a range extension thunk. 25/// As v6 does not support MOVT or MOVW instructions the Thunk must not 26/// use these instructions either. 27 28 29/// ARM v6 supports blx so we shouldn't see the blx not supported warning. 30// CHECK-NOT: warning: lld uses blx instruction, no object with architecture supporting feature detected. 31 .text 32 .syntax unified 33 .cpu arm1176jzf-s 34 .globl _start 35 .type _start,%function 36 .balign 0x1000 37_start: 38 bl thumbfunc 39 bx lr 40 41// CHECK-ARM1: Disassembly of section .text: 42// CHECK-ARM1-EMPTY: 43// CHECK-ARM1-NEXT: <_start>: 44// CHECK-ARM1-NEXT: 21000: fa000000 blx 0x21008 <thumbfunc> 45// CHECK-ARM1-NEXT: 21004: e12fff1e bx lr 46 .thumb 47 .section .text.2, "ax", %progbits 48 .globl thumbfunc 49 .type thumbfunc,%function 50thumbfunc: 51 bl farthumbfunc 52 53// CHECK-THUMB1: <thumbfunc>: 54// CHECK-THUMB1-NEXT: 21008: f200 e800 blx 0x22100c <__ARMv5LongLdrPcThunk_farthumbfunc> 55/// 6 Megabytes, enough to make farthumbfunc out of range of caller 56/// on a v6 Arm, but not on a v7 Arm. 57 58 .section .text.3, "ax", %progbits 59 .space 0x200000 60// CHECK-ARM2: <__ARMv5LongLdrPcThunk_farthumbfunc>: 61// CHECK-ARM2-NEXT: 22100c: e51ff004 ldr pc, [pc, #-4] 62// CHECK-ARM2-NEXT: 221010: 01 20 62 00 .word 0x00622001 63// CHECK-ARM2-EB: <__ARMv5LongLdrPcThunk_farthumbfunc>: 64// CHECK-ARM2-EB-NEXT: 22100c: e51ff004 ldr pc, [pc, #-4] 65// CHECK-ARM2-EB-NEXT: 221010: 00 62 20 01 .word 0x00622001 66 .section .text.4, "ax", %progbits 67 .space 0x200000 68 69 .section .text.5, "ax", %progbits 70 .space 0x200000 71 72 .thumb 73 .section .text.6, "ax", %progbits 74 .balign 0x1000 75 .globl farthumbfunc 76 .type farthumbfunc,%function 77farthumbfunc: 78 bx lr 79// CHECK-THUMB2: <farthumbfunc>: 80// CHECK-THUMB2-NEXT: 622000: 4770 bx lr 81