forked from OSchip/llvm-project
77 lines
2.5 KiB
ArmAsm
77 lines
2.5 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 -r %t.o | FileCheck -check-prefix=RELOCS-LE %s
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# RUN: ld.lld %t.o -o %t
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# RUN: llvm-nm %t | FileCheck --check-prefix=NM %s
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# RUN: llvm-readelf -x .got %t | FileCheck --check-prefix=HEX-LE %s
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# RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck --check-prefix=CHECK %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 -r %t.o | FileCheck -check-prefix=RELOCS-BE %s
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# RUN: ld.lld %t.o -o %t
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# RUN: llvm-nm %t | FileCheck --check-prefix=NM %s
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# RUN: llvm-readelf -x .got %t | FileCheck --check-prefix=HEX-BE %s
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# RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck --check-prefix=CHECK %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-LE: Relocations [
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# RELOCS-LE-NEXT: .rela.text {
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# RELOCS-LE: 0x8 R_PPC64_TOC16_HA global_a 0x0
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# RELOCS-LE: 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-BE: 0xE R_PPC64_TOC16_LO global_a 0x0
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# The .TOC. symbol represents the TOC base address: .got + 0x8000 = 0x10028000,
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# which is stored in the first entry of .got
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# NM: 00000000100281e8 d .TOC.
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# NM: 00000000100301f0 D global_a
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# HEX-LE: section '.got':
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# HEX-LE-NEXT: 0x100201e8 e8810210 00000000
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# HEX-BE: section '.got':
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# HEX-BE-NEXT: 0x100201e8 00000000 100281e8
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# r2 stores the TOC base address. To access global_a with r3, it
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# computes the address with TOC plus an offset.
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# global_a - .TOC. = 0x100301f0 - 0x100281e8 = (1 << 16) - 32760
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# CHECK: <_start>:
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# CHECK: 100101d0: addis 3, 2, 1
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# CHECK-NEXT: 100101d4: addi 3, 3, -32760
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