92 lines · plain
1# RUN: yaml2obj --docnum=1 -DCONTENT=FA000002E59F100CE0800001E12FFF1E4802EB00308047703141592627182818 %s | llvm-objdump --no-print-imm-hex -d --triple=armv7r - | FileCheck %s2# RUN: yaml2obj --docnum=1 -DCONTENT=020000FA0C109FE5010080E01EFF2FE1024800EB803070473141592627182818 -DFLAG=,EF_ARM_BE8 %s | llvm-objdump --no-print-imm-hex -d --triple=armv7r - | FileCheck %s3# RUN: yaml2obj --docnum=2 -DCONTENT=FA000002E59F100CE0800001E12FFF1E4802EB00308047703141592627182818 %s | llvm-objdump --no-print-imm-hex -d --triple=armv7r - | FileCheck %s4 5## Test llvm-objdump disassembly of all three kinds of6## AAELF32-compliant big-endian ELF file.7##8## In image files, by default AArch32 ELF stores the instructions9## big-endian ('BE32' style), unless the EF_ARM_BE8 flag is set in the10## ELF header, which indicates that instructions are stored11## little-endian ('BE8' style). llvm-objdump should detect the flag and12## handle both types, using the $a, $t and $d mapping symbols to13## distinguish Arm instructions, Thumb instructions, and data.14##15## Relocatable object files always use the BE32 style. (The linker is16## expected to byte-swap code sections, using the same the mapping17## symbols to decide how, if it's going to generate an image with BE818## instruction endianness and the BE8 flag set.)19##20## This test checks all three cases of this. It provides llvm-objdump21## with the BE32 and BE8 versions of the same image file, with the code22## section byte-swapped, and the EF_ARM_BE8 flag absent and present23## respectively to indicate that. We also provide a matching object24## file. We expect the identical disassembly from both, apart from the25## detail that addresses in the ELF images start at 0x8000 and section26## offsets in the object start at 0.27 28# CHECK: 0: fa000002 blx29# CHECK-NEXT: 4: e59f100c ldr r1, [pc, #12]30# CHECK-NEXT: 8: e0800001 add r0, r0, r131# CHECK-NEXT: c: e12fff1e bx lr32# CHECK: 10: 4802 ldr r0, [pc, #8]33# CHECK-NEXT: 12: eb00 3080 add.w r0, r0, r0, lsl #1434# CHECK-NEXT: 16: 4770 bx lr35# CHECK: 18: 31 41 59 26 .word 0x3141592636# CHECK-NEXT: 1c: 27 18 28 18 .word 0x2718281837 38--- !ELF39FileHeader:40 Class: ELFCLASS3241 Data: ELFDATA2MSB42 Type: ET_EXEC43 Machine: EM_ARM44 Flags: [ EF_ARM_EABI_UNKNOWN[[FLAG=]] ]45 Entry: 0x800046ProgramHeaders:47 - Type: PT_LOAD48 Flags: [ PF_X, PF_R ]49 FirstSec: .text50 LastSec: .text51 VAddr: 0x800052 Align: 0x453Sections:54 - Name: .text55 Type: SHT_PROGBITS56 Flags: [ SHF_ALLOC, SHF_EXECINSTR ]57 Address: 0x800058 AddressAlign: 0x459 Content: [[CONTENT]]60Symbols:61 - Name: '$a'62 Section: .text63 Value: 0x800064 - Name: '$t'65 Section: .text66 Value: 0x801067 - Name: '$d'68 Section: .text69 Value: 0x801870 71--- !ELF72FileHeader:73 Class: ELFCLASS3274 Data: ELFDATA2MSB75 Type: ET_REL76 Machine: EM_ARM77Sections:78 - Name: .text79 Type: SHT_PROGBITS80 Flags: [ SHF_ALLOC, SHF_EXECINSTR ]81 AddressAlign: 0x482 Content: [[CONTENT]]83Symbols:84 - Name: '$a'85 Section: .text86 - Name: '$t'87 Section: .text88 Value: 0x1089 - Name: '$d'90 Section: .text91 Value: 0x1892