forked from OSchip/llvm-project
91 lines
2.8 KiB
ArmAsm
91 lines
2.8 KiB
ArmAsm
# REQUIRES: ppc
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# RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %s -o %t.o
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# RUN: llvm-readobj -relocations %t.o | FileCheck -check-prefix=RELOCS %s
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# RUN: ld.lld %t.o -o %t2
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# RUN: llvm-objdump -D %t2 | FileCheck %s
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# RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %s -o %t.o
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# RUN: llvm-readobj -relocations %t.o | FileCheck -check-prefix=RELOCS-BE %s
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# RUN: ld.lld %t.o -o %t2
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# RUN: llvm-objdump -D %t2 | FileCheck -check-prefix=CHECK-BE %s
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# Make sure we calculate the offset correctly for a toc-relative access to a
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# global variable as described by the PPC64 Elf V2 abi.
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.abiversion 2
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# int global_a = 55
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.globl global_a
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.section ".data"
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.align 2
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.type global_a, @object
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.size global_a, 4
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.p2align 2
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global_a:
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.long 41
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.section ".text"
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.align 2
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.global _start
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.type _start, @function
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_start:
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.Lfunc_gep0:
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addis 2, 12, .TOC.-.Lfunc_gep0@ha
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addi 2, 2, .TOC.-.Lfunc_gep0@l
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.Lfunc_lep0:
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.localentry _start, .Lfunc_lep0-.Lfunc_gep0
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addis 3, 2, global_a@toc@ha
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addi 3, 3, global_a@toc@l
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li 0,1
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lwa 3, 0(3)
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sc
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.size _start,.-_start
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# Verify the relocations that get emitted for the global variable are the
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# expected ones.
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# RELOCS: Relocations [
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# RELOCS-NEXT: .rela.text {
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# RELOCS: 0x8 R_PPC64_TOC16_HA global_a 0x0
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# RELOCS: 0xC R_PPC64_TOC16_LO global_a 0x0
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# RELOCS-BE: Relocations [
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# RELOCS-BE-NEXT: .rela.text {
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# RELOCS-BE: 0xA R_PPC64_TOC16_HA global_a 0x0
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# RELOCS-NE: 0xE R_PPC64_TOC16_LO global_a 0x0
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# Want to check _start for the values used to build the offset from the TOC base
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# to global_a. The .TOC. symbol is expected at address 0x10030000, and the
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# TOC base is address-of(.TOC.) + 0x8000. The expected offset is:
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# 0x10020000(global_a) - 0x10038000(Toc base) = -0x18000(Offset)
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# which gets materialized into r3 as ((-1 << 16) - 32768).
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# CHECK: Disassembly of section .text:
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# CHECK-NEXT: _start:
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# CHECK: 10010008: {{.*}} addis 3, 2, -1
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# CHECK-NEXT: 1001000c: {{.*}} addi 3, 3, -32768
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# CHECK: Disassembly of section .data:
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# CHECK-NEXT: global_a:
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# CHECK-NEXT: 10020000: {{.*}}
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# CHECK: Disassembly of section .got:
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# CHECK-NEXT: .got:
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# CHECK-NEXT: 10030000: 00 80 03 10
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# CHECK-BE: Disassembly of section .text:
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# CHECK-BE-NEXT: _start:
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# CHECK-BE: 10010008: {{.*}} addis 3, 2, -1
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# CHECK-BE-NEXT: 1001000c: {{.*}} addi 3, 3, -32768
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# CHECK-BE: Disassembly of section .data:
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# CHECK-BE-NEXT: global_a:
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# CHECK-BE-NEXT: 10020000: {{.*}}
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# CHECK-BE: Disassembly of section .got:
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# CHECK-BE-NEXT: .got:
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# CHECK-BE-NEXT: 10030000: 00 00 00 00
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# CHECK-BE-NEXT: 10030004: 10 03 80 00
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