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36 lines
1.7 KiB
Plaintext
36 lines
1.7 KiB
Plaintext
## Regression test for a magic-byte collision in the compressed offload bundle
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## (CCOB) reader used by --offloading (llvm::object::extractOffloadBundle).
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##
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## The reader used to find the boundary between concatenated bundles by scanning
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## for the literal 4-byte magic "CCOB". Those bytes can appear by chance inside a
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## compressed payload, which truncated a valid single bundle so it failed to
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## decompress. The .hip_fatbin below is a single compressed bundle whose
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## compressed region embeds the bytes "CCOB" inside a zstd skippable frame
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## (ignored by the decompressor); a reader that advances by the header's FileSize
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## handles it correctly. Regenerate the bundle with
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## clang/test/Driver/Inputs/clang-offload-bundler-magic-collision.py.
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# REQUIRES: zstd
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# RUN: yaml2obj %s -o %t.elf
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# RUN: llvm-objdump --offloading %t.elf | FileCheck %s
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# RUN: FileCheck %s --check-prefix=DEV1 \
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# RUN: --input-file=%t.elf.0.hip-amdgcn-amd-amdhsa--gfx906
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# CHECK: Extracting offload bundle: {{.*}}.elf.0.hip-amdgcn-amd-amdhsa--gfx906
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# CHECK: Extracting offload bundle: {{.*}}.elf.0.hip-amdgcn-amd-amdhsa--gfx908
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# DEV1: Content of device file 1
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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: .hip_fatbin
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC ]
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AddressAlign: 0x1000
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Content: 43434F42030001009D00000000000000BC00000000000000C4C20F3D5905B03E502A4D180400000043434F4228B52FFD20BC45030024055F5F434C414E475F4F46464C4F41445F42554E444C455F5F02008A0019001D006869702D616D6467636E6873612D2D676678393036A338436F6E74656E74206F66206465766963652066696C6520310A320A0800F2AC07B03ADAED52591D600C0606033B8031
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...
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