derek.holloway
7502bf64a4
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89 lines
3.8 KiB
ArmAsm
89 lines
3.8 KiB
ArmAsm
# REQUIRES: aarch64
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# RUN: rm -rf %t && split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple=aarch64 %t/use.s -o %t/use-le.o
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# RUN: llvm-mc -filetype=obj -triple=aarch64 %t/def.s -o %t/def-le.o
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# RUN: llvm-mc -filetype=obj -triple=aarch64 %t/rel.s -o %t/rel-le.o
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## Deactivation symbol used without being defined: instruction emitted as usual.
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# RUN: ld.lld -o %t/undef-le %t/use-le.o --emit-relocs
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# RUN: llvm-objdump -r %t/undef-le | FileCheck --check-prefix=RELOC %s
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# RUN: llvm-objdump -d %t/undef-le | FileCheck --check-prefix=UNDEF %s
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# RUN: ld.lld -pie -o %t/undef-le %t/use-le.o --emit-relocs
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# RUN: llvm-objdump -r %t/undef-le | FileCheck --check-prefix=RELOC %s
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# RUN: llvm-objdump -d %t/undef-le | FileCheck --check-prefix=UNDEF %s
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## Deactivation symbol defined: instructions overwritten with NOPs.
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# RUN: ld.lld -o %t/def-le %t/use-le.o %t/def-le.o --emit-relocs
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# RUN: llvm-objdump -r %t/def-le | FileCheck --check-prefix=RELOC %s
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# RUN: llvm-objdump -d %t/def-le | FileCheck --check-prefix=DEF %s
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# RUN: ld.lld -pie -o %t/def-le %t/use-le.o %t/def-le.o --emit-relocs
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# RUN: llvm-objdump -r %t/def-le | FileCheck --check-prefix=RELOC %s
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# RUN: llvm-objdump -d %t/def-le | FileCheck --check-prefix=DEF %s
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## Relocation pointing to a non-SHN_UNDEF non-SHN_ABS symbol is an error.
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# RUN: not ld.lld -o %t/rel-le %t/use-le.o %t/rel-le.o 2>&1 | FileCheck --check-prefix=ERROR %s
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# RUN: not ld.lld -pie -o %t/rel-le %t/use-le.o %t/rel-le.o 2>&1 | FileCheck --check-prefix=ERROR %s
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## Behavior unchanged by endianness: relocation always written as little endian.
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# RUN: llvm-mc -filetype=obj -triple=aarch64_be %t/use.s -o %t/use-be.o
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# RUN: llvm-mc -filetype=obj -triple=aarch64_be %t/def.s -o %t/def-be.o
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# RUN: llvm-mc -filetype=obj -triple=aarch64_be %t/rel.s -o %t/rel-be.o
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# RUN: ld.lld -o %t/undef-be %t/use-be.o --emit-relocs
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# RUN: llvm-objdump -r %t/undef-be | FileCheck --check-prefix=RELOC %s
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# RUN: llvm-objdump -d %t/undef-be | FileCheck --check-prefix=UNDEF %s
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# RUN: ld.lld -pie -o %t/undef-be %t/use-be.o --emit-relocs
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# RUN: llvm-objdump -r %t/undef-be | FileCheck --check-prefix=RELOC %s
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# RUN: llvm-objdump -d %t/undef-be | FileCheck --check-prefix=UNDEF %s
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# RUN: ld.lld -o %t/def-be %t/use-be.o %t/def-be.o --emit-relocs
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# RUN: llvm-objdump -r %t/def-be | FileCheck --check-prefix=RELOC %s
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# RUN: llvm-objdump -d %t/def-be | FileCheck --check-prefix=DEF %s
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# RUN: ld.lld -pie -o %t/def-be %t/use-be.o %t/def-be.o --emit-relocs
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# RUN: llvm-objdump -r %t/def-be | FileCheck --check-prefix=RELOC %s
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# RUN: llvm-objdump -d %t/def-be | FileCheck --check-prefix=DEF %s
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# RUN: not ld.lld -o %t/rel-be %t/use-be.o %t/rel-be.o 2>&1 | FileCheck --check-prefix=ERROR %s
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# RUN: not ld.lld -pie -o %t/rel-be %t/use-be.o %t/rel-be.o 2>&1 | FileCheck --check-prefix=ERROR %s
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# RELOC: R_AARCH64_JUMP26
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# RELOC-NEXT: R_AARCH64_PATCHINST ds
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# RELOC-NEXT: R_AARCH64_PATCHINST ds
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# RELOC-NEXT: R_AARCH64_PATCHINST ds0+0xd503201f
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#--- use.s
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.weak ds
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.weak ds0
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# This instruction has a single relocation: the DS relocation.
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# UNDEF: add x0, x1, x2
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# DEF: nop
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# ERROR: R_AARCH64_PATCHINST relocation against non-absolute symbol ds
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.reloc ., R_AARCH64_PATCHINST, ds
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add x0, x1, x2
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# This instruction has two relocations: the DS relocation and the JUMP26 to f1.
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# Make sure that the DS relocation takes precedence.
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.reloc ., R_AARCH64_PATCHINST, ds
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# UNDEF: b {{.*}} <f1>
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# DEF: nop
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# ERROR: R_AARCH64_PATCHINST relocation against non-absolute symbol ds
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b f1
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# Alternative representation: instruction opcode stored in addend.
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# UNDEF: add x3, x4, x5
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# DEF: nop
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# ERROR: R_AARCH64_PATCHINST relocation against non-absolute symbol ds0
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.reloc ., R_AARCH64_PATCHINST, ds0 + 0xd503201f
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add x3, x4, x5
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.section .text.f1,"ax",@progbits
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f1:
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ret
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#--- def.s
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.globl ds
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ds = 0xd503201f
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.globl ds0
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ds0 = 0
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#--- rel.s
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.globl ds
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ds:
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.globl ds0
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ds0:
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