From: cgmb@debian.org   
      
   Package: llvm-21   
   Version: 1:21.1.8-3+b1   
   Severity: normal   
   Forwarded: https://github.com/llvm/llvm-project/issues/182567   
   X-Debbugs-Cc: cgmb@debian.org, rocm.compiler.support@amd.com   
      
   Dear Maintainer,   
      
   llvm-objdump-21 segfaults when I attempt to extract the offload sections from   
   an object file, rocsparse_axpyi.cpp.o. This object file was created by   
   building rocSPARSE 7.1.0 with --offload-compress enabled. A copy of the object   
   file is included in the    
   upstream bug report. The problem occurs with both the upstream LLVM and the   
   Debian package.   
      
   ```   
   # LLVM_SYMBOLIZER_PATH=/usr/lib/llvm-21/bin/llvm-symbolizer llvm-objdump-21   
   --offloading rocsparse_axpyi.cpp.o   
      
   rocsparse_axpyi.cpp.o:	file format elf64-x86-64   
   PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and   
   include the crash backtrace.   
   Stack dump:   
   0.	Program arguments: llvm-objdump-21 --offloading rocsparse_axpyi.cpp.o   
    #0 0x00007f6c4a82506a llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)   
   (/usr/lib/llvm-21/bin/../lib/libLLVM.so.21.1+0x45df06a)   
    #1 0x00007f6c4a822857 llvm::sys::RunSignalHandlers() (/usr/lib/   
   lvm-21/bin/../lib/libLLVM.so.21.1+0x45dc857)   
    #2 0x00007f6c4a825e14 (/usr/lib/llvm-21/bin/../lib/libLLVM.so.21.1+0x45dfe14)   
    #3 0x00007f6c45bf0a70 (/usr/lib/x86_64-linux-gnu/libc.so.6+0x40a70)   
    #4 0x00007f6c45d30830 (/usr/lib/x86_64-linux-gnu/libc.so.6+0x180830)   
    #5 0x000055f8448e16c0 (/usr/lib/llvm-21/bin/llvm-objdump+0xc46c0)   
    #6 0x000055f8448e0c2e (/usr/lib/llvm-21/bin/llvm-objdump+0xc3c2e)   
    #7 0x000055f84485e965 (/usr/lib/llvm-21/bin/llvm-objdump+0x41965)   
    #8 0x000055f844853ff9 (/usr/lib/llvm-21/bin/llvm-objdump+0x36ff9)   
    #9 0x000055f8448eb89a (/usr/lib/llvm-21/bin/llvm-objdump+0xce89a)   
   #10 0x00007f6c45bd9f75 (/usr/lib/x86_64-linux-gnu/libc.so.6+0x29f75)   
   #11 0x00007f6c45bda027 __libc_start_main (/usr/lib/x86_64-linux-   
   nu/libc.so.6+0x2a027)   
   #12 0x000055f84484afe1 (/usr/lib/llvm-21/bin/llvm-objdump+0x2dfe1)   
   Segmentation fault         (core dumped) LLVM_SYMBOLIZER_PATH=/u   
   r/lib/llvm-21/bin/llvm-symbolizer llvm-objdump-21 --offloading r   
   csparse_axpyi.cpp.o   
   ```   
      
   It's noteworthy that this does not occur with llvm-22:   
      
   ```   
   # llvm-objdump-22 --offloading rocsparse_axpyi.cpp.o   
      
   rocsparse_axpyi.cpp.o:	file format elf64-x86-64   
   Extracting offload bundle: rocsparse_axpyi.cpp.o.0.host-x86_64-u   
   known-linux-gnu-   
   Extracting offload bundle: rocsparse_axpyi.cpp.o.0.hipv4-amdgcn-   
   md-amdhsa--gfx1010   
   Extracting offload bundle: rocsparse_axpyi.cpp.o.0.hipv4-amdgcn-   
   md-amdhsa--gfx1030   
   Extracting offload bundle: rocsparse_axpyi.cpp.o.0.hipv4-amdgcn-   
   md-amdhsa--gfx1100   
   Extracting offload bundle: rocsparse_axpyi.cpp.o.0.hipv4-amdgcn-   
   md-amdhsa--gfx1101   
   Extracting offload bundle: rocsparse_axpyi.cpp.o.0.hipv4-amdgcn-   
   md-amdhsa--gfx1102   
   Extracting offload bundle: rocsparse_axpyi.cpp.o.0.hipv4-amdgcn-   
   md-amdhsa--gfx803   
   Extracting offload bundle: rocsparse_axpyi.cpp.o.0.hipv4-amdgcn-   
   md-amdhsa--gfx900   
   Extracting offload bundle: rocsparse_axpyi.cpp.o.0.hipv4-amdgcn-   
   md-amdhsa--gfx906   
   Extracting offload bundle: rocsparse_axpyi.cpp.o.0.hipv4-amdgcn-   
   md-amdhsa--gfx908   
   Extracting offload bundle: rocsparse_axpyi.cpp.o.0.hipv4-amdgcn-   
   md-amdhsa--gfx90a   
   ```   
      
   I suspect that the problem is related to uncompressing the offload   
   bundles as there is a different error when operating on a shared object   
   library. The log below is based on the upstream objdump, but I've seen   
   the same results with the Debian package.   
      
   ```   
   # /root/LLVM-21.1.8-Linux-X64/bin/llvm-objdump --offloading ./ob   
   -x86_64-linux-gnu/library/librocsparse.so.1.0   
      
   ./obj-x86_64-linux-gnu/library/librocsparse.so.1.0:	file format elf64-x86-64   
   /root/LLVM-21.1.8-Linux-X64/bin/llvm-objdump: error: './obj-x86_   
   4-linux-gnu/library/librocsparse.so.1.0': while extracting offload FatBin   
   bundles: Failed to decompress input: Could not decompress embedded file   
   contents: Src size is incorrect   
   ```   
      
   Sincerely,   
   Cory Bloor   
      
   -- System Information:   
   Debian Release: forky/sid   
     APT prefers unstable   
     APT policy: (500, 'unstable')   
   Architecture: amd64 (x86_64)   
      
   Kernel: Linux 6.17.13+deb13-amd64 (SMP w/12 CPU threads; PREEMPT)   
   Locale: LANG=C, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set   
   Shell: /bin/sh linked to /usr/bin/dash   
   Init: unable to detect   
      
   Versions of packages llvm-21 depends on:   
   ii  libc6                 2.42-13   
   ii  libcurl4t64           8.18.0-2   
   ii  libgcc-s1             15.2.0-13   
   ii  libllvm21             1:21.1.8-3+b1   
   ii  libpfm4               4.13.0+git106-g3e4031b-1+b1   
   ii  libstdc++6            15.2.0-13   
   ii  libz3-4               4.13.3-1+b1   
   ii  libzstd1              1.5.7+dfsg-3+b1   
   ii  llvm-21-linker-tools  1:21.1.8-3+b1   
   ii  llvm-21-runtime       1:21.1.8-3+b1   
   ii  zlib1g                1:1.3.dfsg+really1.3.1-3   
      
   Versions of packages llvm-21 recommends:   
   ii  llvm-21-dev  1:21.1.8-3+b1   
      
   Versions of packages llvm-21 suggests:   
   pn  llvm-21-doc     
      
   -- no debconf information   
      
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