derek.holloway
7502bf64a4
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28 lines
1.4 KiB
C
28 lines
1.4 KiB
C
// REQUIRES: zstd
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// Regression test for a magic-byte collision in the compressed offload bundle
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// (CCOB) reader. To find the boundary between concatenated bundles the reader
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// used to scan for the literal 4-byte magic "CCOB"; those bytes can appear by
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// chance inside a compressed payload, which truncated a valid single bundle and
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// made decompression fail with "Src size is incorrect".
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//
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// Inputs/clang-offload-bundler-magic-collision.co is a single compressed bundle
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// whose compressed region embeds the bytes "CCOB" inside a zstd skippable frame
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// (regenerate with Inputs/clang-offload-bundler-magic-collision.py). The frame
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// is ignored by the decompressor, so the bundle is valid, but a naive
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// find("CCOB", 4) scan stops at the planted bytes. A reader that advances by
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// the header's FileSize handles this file correctly.
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// RUN: clang-offload-bundler -type=bc -list \
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// RUN: -input=%S/Inputs/clang-offload-bundler-magic-collision.co \
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// RUN: | FileCheck %s --check-prefix=LIST
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// LIST-DAG: hip-amdgcn-amd-amdhsa--gfx906
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// LIST-DAG: hip-amdgcn-amd-amdhsa--gfx908
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// RUN: clang-offload-bundler -type=bc -unbundle \
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// RUN: -targets=hip-amdgcn-amd-amdhsa--gfx906 \
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// RUN: -input=%S/Inputs/clang-offload-bundler-magic-collision.co \
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// RUN: -output=%t.gfx906
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// RUN: FileCheck %s --check-prefix=EXTRACT --input-file=%t.gfx906
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// EXTRACT: Content of device file 1
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