92 lines
3.6 KiB
Text
92 lines
3.6 KiB
Text
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# RUN: yaml2obj --docnum=1 -DCONTENT=FA000002E59F100CE0800001E12FFF1E4802EB00308047703141592627182818 %s | llvm-objdump --no-print-imm-hex -d --triple=armv7r - | FileCheck %s
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# RUN: yaml2obj --docnum=1 -DCONTENT=020000FA0C109FE5010080E01EFF2FE1024800EB803070473141592627182818 -DFLAG=,EF_ARM_BE8 %s | llvm-objdump --no-print-imm-hex -d --triple=armv7r - | FileCheck %s
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# RUN: yaml2obj --docnum=2 -DCONTENT=FA000002E59F100CE0800001E12FFF1E4802EB00308047703141592627182818 %s | llvm-objdump --no-print-imm-hex -d --triple=armv7r - | FileCheck %s
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## Test llvm-objdump disassembly of all three kinds of
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## AAELF32-compliant big-endian ELF file.
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##
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## In image files, by default AArch32 ELF stores the instructions
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## big-endian ('BE32' style), unless the EF_ARM_BE8 flag is set in the
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## ELF header, which indicates that instructions are stored
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## little-endian ('BE8' style). llvm-objdump should detect the flag and
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## handle both types, using the $a, $t and $d mapping symbols to
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## distinguish Arm instructions, Thumb instructions, and data.
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##
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## Relocatable object files always use the BE32 style. (The linker is
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## expected to byte-swap code sections, using the same the mapping
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## symbols to decide how, if it's going to generate an image with BE8
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## instruction endianness and the BE8 flag set.)
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##
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## This test checks all three cases of this. It provides llvm-objdump
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## with the BE32 and BE8 versions of the same image file, with the code
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## section byte-swapped, and the EF_ARM_BE8 flag absent and present
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## respectively to indicate that. We also provide a matching object
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## file. We expect the identical disassembly from both, apart from the
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## detail that addresses in the ELF images start at 0x8000 and section
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## offsets in the object start at 0.
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# CHECK: 0: fa000002 blx
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# CHECK-NEXT: 4: e59f100c ldr r1, [pc, #12]
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# CHECK-NEXT: 8: e0800001 add r0, r0, r1
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# CHECK-NEXT: c: e12fff1e bx lr
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# CHECK: 10: 4802 ldr r0, [pc, #8]
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# CHECK-NEXT: 12: eb00 3080 add.w r0, r0, r0, lsl #14
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# CHECK-NEXT: 16: 4770 bx lr
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# CHECK: 18: 31 41 59 26 .word 0x31415926
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# CHECK-NEXT: 1c: 27 18 28 18 .word 0x27182818
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--- !ELF
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FileHeader:
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Class: ELFCLASS32
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Data: ELFDATA2MSB
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Type: ET_EXEC
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Machine: EM_ARM
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Flags: [ EF_ARM_EABI_UNKNOWN[[FLAG=]] ]
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Entry: 0x8000
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ProgramHeaders:
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- Type: PT_LOAD
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Flags: [ PF_X, PF_R ]
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FirstSec: .text
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LastSec: .text
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VAddr: 0x8000
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Align: 0x4
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Sections:
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- Name: .text
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
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Address: 0x8000
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AddressAlign: 0x4
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Content: [[CONTENT]]
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Symbols:
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- Name: '$a'
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Section: .text
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Value: 0x8000
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- Name: '$t'
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Section: .text
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Value: 0x8010
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- Name: '$d'
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Section: .text
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Value: 0x8018
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--- !ELF
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FileHeader:
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Class: ELFCLASS32
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Data: ELFDATA2MSB
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Type: ET_REL
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Machine: EM_ARM
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Sections:
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- Name: .text
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
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AddressAlign: 0x4
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Content: [[CONTENT]]
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Symbols:
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- Name: '$a'
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Section: .text
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- Name: '$t'
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Section: .text
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Value: 0x10
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- Name: '$d'
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Section: .text
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Value: 0x18
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