diff options
Diffstat (limited to 'test/ELF/arm-plt-reloc.s')
| -rw-r--r-- | test/ELF/arm-plt-reloc.s | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/test/ELF/arm-plt-reloc.s b/test/ELF/arm-plt-reloc.s new file mode 100644 index 000000000000..0616aa7966a9 --- /dev/null +++ b/test/ELF/arm-plt-reloc.s @@ -0,0 +1,90 @@ +// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %p/Inputs/arm-plt-reloc.s -o %t1 +// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t2 +// RUN: ld.lld %t1 %t2 -o %t +// RUN: llvm-objdump -triple=armv7a-none-linux-gnueabi -d %t | FileCheck %s +// RUN: ld.lld -shared %t1 %t2 -o %t3 +// RUN: llvm-objdump -triple=armv7a-none-linux-gnueabi -d %t3 | FileCheck -check-prefix=DSO %s +// RUN: llvm-readobj -s -r %t3 | FileCheck -check-prefix=DSOREL %s +// REQUIRES: arm +// +// Test PLT entry generation + .syntax unified + .text + .align 2 + .globl _start + .type _start,%function +_start: + b func1 + bl func2 + beq func3 + +// Executable, expect no PLT +// CHECK: Disassembly of section .text: +// CHECK-NEXT: func1: +// CHECK-NEXT: 11000: 1e ff 2f e1 bx lr +// CHECK: func2: +// CHECK-NEXT: 11004: 1e ff 2f e1 bx lr +// CHECK: func3: +// CHECK-NEXT: 11008: 1e ff 2f e1 bx lr +// CHECK: _start: +// CHECK-NEXT: 1100c: fb ff ff ea b #-20 <func1> +// CHECK-NEXT: 11010: fb ff ff eb bl #-20 <func2> +// CHECK-NEXT: 11014: fb ff ff 0a beq #-20 <func3> + +// Expect PLT entries as symbols can be preempted +// DSO: Disassembly of section .text: +// DSO-NEXT: func1: +// DSO-NEXT: 1000: 1e ff 2f e1 bx lr +// DSO: func2: +// DSO-NEXT: 1004: 1e ff 2f e1 bx lr +// DSO: func3: +// DSO-NEXT: 1008: 1e ff 2f e1 bx lr +// DSO: _start: +// S(0x1034) - P(0x100c) + A(-8) = 0x20 = 32 +// DSO-NEXT: 100c: 08 00 00 ea b #32 +// S(0x1044) - P(0x1010) + A(-8) = 0x2c = 44 +// DSO-NEXT: 1010: 0b 00 00 eb bl #44 +// S(0x1054) - P(0x1014) + A(-8) = 0x38 = 56 +// DSO-NEXT: 1014: 0e 00 00 0a beq #56 +// DSO: Disassembly of section .plt: +// DSO-NEXT:.plt: +// DSO-NEXT: 1020: 04 e0 2d e5 str lr, [sp, #-4]! +// DSO-NEXT: 1024: 04 e0 9f e5 ldr lr, [pc, #4] +// DSO-NEXT: 1028: 0e e0 8f e0 add lr, pc, lr +// DSO-NEXT: 102c: 08 f0 be e5 ldr pc, [lr, #8]! +// 0x1028 + 8 + 1fd0 = 0x3000 +// DSO-NEXT: 1030: d0 1f 00 00 +// DSO-NEXT: 1034: 04 c0 9f e5 ldr r12, [pc, #4] +// DSO-NEXT: 1038: 0f c0 8c e0 add r12, r12, pc +// DSO-NEXT: 103c: 00 f0 9c e5 ldr pc, [r12] +// 0x1038 + 8 + 1fcc = 0x300c +// DSO-NEXT: 1040: cc 1f 00 00 +// DSO-NEXT: 1044: 04 c0 9f e5 ldr r12, [pc, #4] +// DSO-NEXT: 1048: 0f c0 8c e0 add r12, r12, pc +// DSO-NEXT: 104c: 00 f0 9c e5 ldr pc, [r12] +// 0x1048 + 8 + 1fc0 = 0x3010 +// DSO-NEXT: 1050: c0 1f 00 00 +// DSO-NEXT: 1054: 04 c0 9f e5 ldr r12, [pc, #4] +// DSO-NEXT: 1058: 0f c0 8c e0 add r12, r12, pc +// DSO-NEXT: 105c: 00 f0 9c e5 ldr pc, [r12] +// 0x1058 + 8 + 1fb4 = 0x3014 +// DSO-NEXT: 1060: b4 1f 00 00 + +// DSOREL: Name: .got.plt +// DSOREL-NEXT: Type: SHT_PROGBITS +// DSOREL-NEXT: Flags [ +// DSOREL-NEXT: SHF_ALLOC +// DSOREL-NEXT: SHF_WRITE +// DSOREL-NEXT: ] +// DSOREL-NEXT: Address: 0x3000 +// DSOREL-NEXT: Offset: +// DSOREL-NEXT: Size: 24 +// DSOREL-NEXT: Link: +// DSOREL-NEXT: Info: +// DSOREL-NEXT: AddressAlignment: 4 +// DSOREL-NEXT: EntrySize: +// DSOREL: Relocations [ +// DSOREL-NEXT: Section (4) .rel.plt { +// DSOREL-NEXT: 0x300C R_ARM_JUMP_SLOT func1 0x0 +// DSOREL-NEXT: 0x3010 R_ARM_JUMP_SLOT func2 0x0 +// DSOREL-NEXT: 0x3014 R_ARM_JUMP_SLOT func3 0x0 |