46814bee63
For sections with different virtual and physical addresses, alignment and placement in the output binary should be based on the physical address. Ran into this problem with a bare metal ARM project where llvm-objcopy added a lot of zero-padding before the .data section that had differing addresses. GNU objcopy did not add the padding, and after this fix, neither does llvm-objcopy. Update a test case so a section has different physical and virtual addresses. Fixes B35708 Authored By: Owen Shaw (owenpshaw) Differential Revision: https://reviews.llvm.org/D41619 llvm-svn: 323144
46 lines
1.2 KiB
Plaintext
46 lines
1.2 KiB
Plaintext
# RUN: yaml2obj %s -o %t
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# RUN: llvm-objcopy -O binary %t %t2
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# RUN: od -t x2 %t2 | FileCheck %s
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# RUN: wc -c < %t2 | FileCheck %s --check-prefix=SIZE
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!ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Machine: EM_X86_64
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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: 0x1000
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AddressAlign: 0x0000000000001000
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Content: "c3c3c3c3"
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- Name: .data
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC ]
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Address: 0x2000
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AddressAlign: 0x0000000000001000
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Content: "3232"
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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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VAddr: 0x1000
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PAddr: 0x1000
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Align: 0x1000
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Sections:
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- Section: .text
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- Type: PT_LOAD
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Flags: [ PF_R, PF_W ]
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VAddr: 0x2000
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PAddr: 0x4000
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Align: 0x1000
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Sections:
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- Section: .data
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# CHECK: 0000000 c3c3 c3c3 0000 0000 0000 0000 0000 0000
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# CHECK-NEXT: 0000020 0000 0000 0000 0000 0000 0000 0000 0000
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# CHECK-NEXT: *
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# CHECK-NEXT: 0030000 3232
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# SIZE: 12290
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