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c93c76b562
This makes a difference when linking executables with delay loaded libraries for arm32; the delay loader implementation can load data from the registry with instructions that assume alignment. This issue does not show up when linking in MinGW mode, because a PseudoRelocTableChunk gets injected, which also sets alignment, even if the chunk itself is empty.
122 lines
4.4 KiB
YAML
122 lines
4.4 KiB
YAML
# REQUIRES: arm
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# RUN: yaml2obj %s -o %t.obj
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# RUN: lld-link %t.obj %p/Inputs/library.lib /subsystem:console \
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# RUN: /entry:mainCRTStartup /alternatename:__delayLoadHelper2=mainCRTStartup \
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# RUN: /delayload:library.dll /out:%t.exe
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# RUN: llvm-readobj --coff-imports %t.exe | FileCheck -check-prefix=IMPORT %s
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# RUN: llvm-readobj --coff-basereloc %t.exe | FileCheck -check-prefix=BASEREL %s
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# RUN: llvm-objdump --no-print-imm-hex -d %t.exe | FileCheck --check-prefix=DISASM %s
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# RUN: llvm-readobj --file-headers %t.exe | FileCheck -check-prefix=DIR %s
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# IMPORT: Format: COFF-ARM
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# IMPORT-NEXT: Arch: thumb
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# IMPORT-NEXT: AddressSize: 32bit
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# IMPORT-NEXT: DelayImport {
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# IMPORT-NEXT: Name: library.dll
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# IMPORT-NEXT: Attributes: 0x1
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# IMPORT-NEXT: ModuleHandle: 0x3008
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# IMPORT-NEXT: ImportAddressTable: 0x3010
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# IMPORT-NEXT: ImportNameTable: 0x2044
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# IMPORT-NEXT: BoundDelayImportTable: 0x0
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# IMPORT-NEXT: UnloadDelayImportTable: 0x0
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# IMPORT-NEXT: Import {
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# IMPORT-NEXT: Symbol: function (0)
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# IMPORT-NEXT: Address: 0x40100D
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# IMPORT-NEXT: }
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# IMPORT-NEXT: }
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#
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# BASEREL: BaseReloc [
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# BASEREL-NEXT: Entry {
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# BASEREL-NEXT: Type: ARM_MOV32(T)
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# BASEREL-NEXT: Address: 0x1000
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# BASEREL-NEXT: }
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# BASEREL-NEXT: Entry {
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# BASEREL-NEXT: Type: ARM_MOV32(T)
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# BASEREL-NEXT: Address: 0x100C
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# BASEREL-NEXT: }
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# BASEREL-NEXT: Entry {
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# BASEREL-NEXT: Type: ARM_MOV32(T)
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# BASEREL-NEXT: Address: 0x1026
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# BASEREL-NEXT: }
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# BASEREL-NEXT: Entry {
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# BASEREL-NEXT: Type: ABSOLUTE
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# BASEREL-NEXT: Address: 0x1000
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# BASEREL-NEXT: }
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# BASEREL-NEXT: Entry {
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# BASEREL-NEXT: Type: HIGHLOW
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# BASEREL-NEXT: Address: 0x3010
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# BASEREL-NEXT: }
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# BASEREL-NEXT: Entry {
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# BASEREL-NEXT: Type: ABSOLUTE
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# BASEREL-NEXT: Address: 0x3000
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# BASEREL-NEXT: }
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# BASEREL-NEXT: ]
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#
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# DISASM: 00401000 <.text>:
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# DISASM: 40100c: f243 0c10 movw r12, #12304
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# DISASM-NEXT: f2c0 0c40 movt r12, #64
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# DISASM-NEXT: f000 b800 b.w {{.+}} @ imm = #0
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# DISASM-NEXT: e92d 480f push.w {r0, r1, r2, r3, r11, lr}
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# DISASM-NEXT: f20d 0b10 addw r11, sp, #16
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# DISASM-NEXT: ed2d 0b10 vpush {d0, d1, d2, d3, d4, d5, d6, d7}
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# DISASM-NEXT: 4661 mov r1, r12
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# DISASM-NEXT: f242 0004 movw r0, #8196
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# DISASM-NEXT: f2c0 0040 movt r0, #64
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# DISASM-NEXT: f7ff ffe7 bl 0x401000 <.text>
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# DISASM-NEXT: 4684 mov r12, r0
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# DISASM-NEXT: ecbd 0b10 vpop {d0, d1, d2, d3, d4, d5, d6, d7}
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# DISASM-NEXT: e8bd 480f pop.w {r0, r1, r2, r3, r11, lr}
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# DISASM-NEXT: 4760 bx r12
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#
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# DIR: DelayImportDescriptorRVA: 0x2004
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# DIR-NEXT: DelayImportDescriptorSize: 0x40
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--- !COFF
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header:
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Machine: IMAGE_FILE_MACHINE_ARMNT
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Characteristics: [ ]
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sections:
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- Name: .text
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Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_PURGEABLE, IMAGE_SCN_MEM_16BIT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
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Alignment: 4
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SectionData: 40F20000C0F2000000680047
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Relocations:
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- VirtualAddress: 0
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SymbolName: __imp_function
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Type: IMAGE_REL_ARM_MOV32T
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- Name: .rdata
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Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
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Alignment: 1
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SectionData: 01
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- Name: .data
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Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
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Alignment: 1
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SectionData: 02
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symbols:
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- Name: .text
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Value: 0
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SectionNumber: 1
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SimpleType: IMAGE_SYM_TYPE_NULL
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ComplexType: IMAGE_SYM_DTYPE_NULL
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StorageClass: IMAGE_SYM_CLASS_STATIC
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SectionDefinition:
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Length: 12
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NumberOfRelocations: 1
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NumberOfLinenumbers: 0
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CheckSum: 0
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Number: 1
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- Name: mainCRTStartup
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Value: 0
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SectionNumber: 1
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SimpleType: IMAGE_SYM_TYPE_NULL
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ComplexType: IMAGE_SYM_DTYPE_FUNCTION
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StorageClass: IMAGE_SYM_CLASS_EXTERNAL
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- Name: __imp_function
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Value: 0
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SectionNumber: 0
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SimpleType: IMAGE_SYM_TYPE_NULL
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ComplexType: IMAGE_SYM_DTYPE_NULL
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StorageClass: IMAGE_SYM_CLASS_EXTERNAL
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...
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