derek.holloway
7502bf64a4
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133 lines
4.9 KiB
ArmAsm
133 lines
4.9 KiB
ArmAsm
// REQUIRES: arm
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// RUN: llvm-mc -filetype=obj -arm-add-build-attributes -triple=thumbv8-none-linux-gnueabi --arch=thumb --mcpu=cortex-m33 %p/Inputs/arm-plt-reloc.s -o %t1.o
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// RUN: llvm-mc -filetype=obj -arm-add-build-attributes -triple=thumbv8-none-linux-gnueabi --arch=thumb --mcpu=cortex-m33 %s -o %t2.o
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// RUN: ld.lld %t1.o %t2.o -o %t
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// RUN: llvm-objdump --no-print-imm-hex -d %t | FileCheck %s
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// RUN: ld.lld -shared %t1.o %t2.o -o %t.so
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// RUN: llvm-objdump --no-print-imm-hex -d %t.so | FileCheck --check-prefix=DSO %s
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// RUN: llvm-readelf -S -r %t.so | FileCheck -check-prefix=DSOREL %s
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// RUN: llvm-mc -filetype=obj -arm-add-build-attributes -triple=thumbv8-none-linux-gnueabi --arch=thumbeb --mcpu=cortex-m33 %p/Inputs/arm-plt-reloc.s -o %t1.be.o
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// RUN: llvm-mc -filetype=obj -arm-add-build-attributes -triple=thumbv8-none-linux-gnueabi --arch=thumbeb --mcpu=cortex-m33 %s -o %t2.be.o
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// RUN: ld.lld %t1.be.o %t2.be.o -o %t.be
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// RUN: llvm-objdump --no-print-imm-hex -d %t.be | FileCheck %s
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// RUN: ld.lld -shared %t1.be.o %t2.be.o -o %t.so.be
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// RUN: llvm-objdump --no-print-imm-hex -d %t.so.be | FileCheck --check-prefix=DSO %s
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// RUN: llvm-readelf -S -r %t.so.be | FileCheck -check-prefix=DSOREL %s
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// RUN: ld.lld --be8 %t1.be.o %t2.be.o -o %t.be
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// RUN: llvm-objdump --no-print-imm-hex -d %t.be | FileCheck %s
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// RUN: ld.lld --be8 -shared %t1.be.o %t2.be.o -o %t.so.be
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// RUN: llvm-objdump --no-print-imm-hex -d %t.so.be | FileCheck --check-prefix=DSO %s
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// RUN: llvm-readelf -S -r %t.so.be | FileCheck -check-prefix=DSOREL %s
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/// Test PLT entry generation
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.text
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.align 2
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.globl _start
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.type _start,%function
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_start:
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bl func1
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bl func2
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bl func3
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b.w func1
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b.w func2
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b.w func3
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beq.w func1
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beq.w func2
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beq.w func3
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/// Executable, expect no PLT
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// CHECK: Disassembly of section .text:
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// CHECK-EMPTY:
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// CHECK-NEXT: <func1>:
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// CHECK-NEXT: bx lr
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// CHECK: <func2>:
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// CHECK-NEXT: bx lr
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// CHECK: <func3>:
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// CHECK-NEXT: bx lr
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// CHECK-NEXT: d4d4
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// CHECK: <_start>:
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// CHECK-NEXT: bl {{.*}} <func1>
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// CHECK-NEXT: bl {{.*}} <func2>
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// CHECK-NEXT: bl {{.*}} <func3>
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// CHECK-NEXT: b.w {{.*}} <func1>
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// CHECK-NEXT: b.w {{.*}} <func2>
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// CHECK-NEXT: b.w {{.*}} <func3>
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// CHECK-NEXT: beq.w {{.*}} <func1>
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// CHECK-NEXT: beq.w {{.*}} <func2>
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// CHECK-NEXT: beq.w {{.*}} <func3>
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// DSO: Disassembly of section .text:
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// DSO-EMPTY:
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// DSO-NEXT: <func1>:
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// DSO-NEXT: bx lr
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// DSO: <func2>:
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// DSO-NEXT: bx lr
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// DSO: <func3>:
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// DSO-NEXT: bx lr
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// DSO-NEXT: d4d4
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// DSO: <_start>:
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/// 0x10260 = PLT func1
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// DSO-NEXT: bl 0x10260
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/// 0x10270 = PLT func2
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// DSO-NEXT: bl 0x10270
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/// 0x10280 = PLT func3
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// DSO-NEXT: bl 0x10280
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/// 0x10260 = PLT func1
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// DSO-NEXT: b.w 0x10260
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/// 0x10270 = PLT func2
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// DSO-NEXT: b.w 0x10270
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/// 0x10280 = PLT func3
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// DSO-NEXT: b.w 0x10280
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/// 0x10260 = PLT func1
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// DSO-NEXT: beq.w 0x10260
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/// 0x10270 = PLT func2
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// DSO-NEXT: beq.w 0x10270
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/// 0x10280 = PLT func3
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// DSO-NEXT: beq.w 0x10280
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// DSO: Disassembly of section .plt:
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// DSO-EMPTY:
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// DSO-NEXT: 10240 <.plt>:
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// DSO-NEXT: push {lr}
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// DSO-NEXT: ldr.w lr, [pc, #8]
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// DSO-NEXT: add lr, pc
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// DSO-NEXT: ldr pc, [lr, #8]!
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/// 0x20098 = .got.plt (0x302D8) - pc (0x10238 = .plt + 8) - 8
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// DSO-NEXT: .word 0x00020098
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// DSO-NEXT: .word 0xd4d4d4d4
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// DSO-NEXT: .word 0xd4d4d4d4
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// DSO-NEXT: .word 0xd4d4d4d4
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// DSO-NEXT: .word 0xd4d4d4d4
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/// 136 + 2 << 16 + 0x1026c = 0x302f4 = got entry 1
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// DSO-EMPTY:
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// DSO-NEXT: <func1@plt>:
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// DSO-NEXT: 10260: f240 0c88 movw r12, #136
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// DSO-NEXT: f2c0 0c02 movt r12, #2
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// DSO-NEXT: 44fc add r12, pc
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// DSO-NEXT: f8dc f000 ldr.w pc, [r12]
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// DSO-NEXT: e7fc b 0x1026a
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/// 124 + 2 << 16 + 0x1027c = 0x302f8 = got entry 2
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// DSO-EMPTY:
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// DSO-NEXT: <func2@plt>:
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// DSO-NEXT: 10270: f240 0c7c movw r12, #124
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// DSO-NEXT: f2c0 0c02 movt r12, #2
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// DSO-NEXT: 44fc add r12, pc
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// DSO-NEXT: f8dc f000 ldr.w pc, [r12]
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// DSO-NEXT: e7fc b 0x1027a
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/// 112 + 2 << 16 + 0x1028c = 0x302fc = got entry 3
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// DSO-EMPTY:
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// DSO-NEXT: <func3@plt>:
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// DSO-NEXT: 10280: f240 0c70 movw r12, #112
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// DSO-NEXT: f2c0 0c02 movt r12, #2
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// DSO-NEXT: 44fc add r12, pc
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// DSO-NEXT: f8dc f000 ldr.w pc, [r12]
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// DSO-NEXT: e7fc b 0x1028a
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// DSOREL: .got.plt PROGBITS 000302e8 {{.*}} 000018 00 WA 0 0 4
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// DSOREL: Relocation section '.rel.plt'
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// DSOREL: 000302f4 {{.*}} R_ARM_JUMP_SLOT {{.*}} func1
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// DSOREL: 000302f8 {{.*}} R_ARM_JUMP_SLOT {{.*}} func2
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// DSOREL: 000302fc {{.*}} R_ARM_JUMP_SLOT {{.*}} func3
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