64a2520bac
Allow the ObjectFileELF plugin to resolve R_ARM_ABS32 relocations from AArch32 object files. This fixes https://github.com/llvm/llvm-project/issues/61948 The existing architectures work with RELA-type relocation records that read addend from the relocation entry. REL-type relocations in AArch32 store addend in-place. The new function doesn't re-use ELFRelocation::RelocAddend32(), because the interface doesn't match: in addition to the relocation entry we need the actual target section memory. Reviewed By: labath Differential Revision: https://reviews.llvm.org/D147642
63 lines
2.0 KiB
YAML
63 lines
2.0 KiB
YAML
# RUN: yaml2obj %s -o %t
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# RUN: lldb-test object-file -contents %t | FileCheck %s
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## Test that R_ARM_ABS32 relocations are resolved in .debug_info sections on aarch32.
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## REL-type relocations store implicit addend as signed values inline.
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## We relocate the symbol foo with 4 different addends and bar once in the .debug_info section.
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## Results that exceed the 32-bit range or overflow are logged and ignored.
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# CHECK: Name: .debug_info
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# CHECK: Data: (
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#
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# Addends: Zero Positive Negative Overflow Out-of-range
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# 00000000 04030201 D6FFFFFF D5FFFFFF FFFFFF7F
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# CHECK-NEXT: 0000: 2A000000 2E030201 00000000 D5FFFFFF FFFFFF7F
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# CHECK-NEXT: )
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--- !ELF
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FileHeader:
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Class: ELFCLASS32
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_ARM
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Flags: [ EF_ARM_EABI_VER5 ]
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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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- Name: .debug_info
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Type: SHT_PROGBITS
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Content: 0000000004030201D6FFFFFFD5FFFFFFFFFFFF7F
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- Name: .rel.debug_info
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Type: SHT_REL
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Info: .debug_info
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Relocations:
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- Offset: 0x0
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Symbol: foo
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Type: R_ARM_ABS32
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- Offset: 0x4
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Symbol: foo
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Type: R_ARM_ABS32
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- Offset: 0x8
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Symbol: foo
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Type: R_ARM_ABS32
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- Offset: 0xC
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Symbol: foo
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Type: R_ARM_ABS32
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- Offset: 0x10
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Symbol: bar
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Type: R_ARM_ABS32
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Symbols:
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- Name: .debug_info
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Type: STT_SECTION
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Section: .debug_info
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- Name: foo
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Type: STT_FUNC
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Section: .debug_info
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Value: 0x0000002A
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- Name: bar
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Type: STT_FUNC
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Section: .debug_info
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Value: 0xFF000000
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...
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