bpf-linker

root@kali:~# bpf-linker -h
Usage: bpf-linker [OPTIONS] --output <OUTPUT> <INPUTS>...

Arguments:
  <INPUTS>...  Input files. Can be object files or static libraries

Options:
      --target <TARGET>                 LLVM target triple. When not provided, the target is inferred from the inputs
      --cpu <CPU>                       Target BPF processor. Can be one of `generic`, `probe`, `v1`, `v2`, `v3` [default: generic]
      --cpu-features <features>         Enable or disable CPU features. The available features are: alu32, dummy, dwarfris. Use +feature to enable a feature, or -feature to disable it.  For example --cpu-features=+alu32,-dwarfris [default: ]
  -o, --output <OUTPUT>                 Write output to <output>
      --emit <EMIT>                     Output type. Can be one of `llvm-bc`, `asm`, `llvm-ir`, `obj` [default: obj]
      --btf                             Emit BTF information
  -L <LIBS>                             Add a directory to the library search path
  -O <OPTIMIZE>                         Optimization level. 0-3, s, or z [default: 2]
      --export-symbols <path>           Export the symbols specified in the file `path`. The symbols must be separated by new lines
      --log-file <path>                 Output logs to the given `path`
      --log-level <level>               Set the log level. If not specified, no logging is used. Can be one of `error`, `warn`, `info`, `debug`, `trace`
      --unroll-loops                    Try hard to unroll loops. Useful when targeting kernels that don't support loops
      --ignore-inline-never             Ignore `noinline`/`#[inline(never)]`. Useful when targeting kernels that don't support function calls
      --dump-module <path>              Dump the final IR module to the given `path` before generating the code
      --llvm-args <args>                Extra command line arguments to pass to LLVM
      --disable-expand-memcpy-in-order  Disable passing --bpf-expand-memcpy-in-order to LLVM
      --disable-memory-builtins         Disable exporting memcpy, memmove, memset, memcmp and bcmp. Exporting those is commonly needed when LLVM does not manage to expand memory intrinsics to a sequence of loads and stores
      --export <symbols>                Comma separated list of symbols to export. See also `--export-symbols`
      --fatal-errors <FATAL_ERRORS>     Whether to treat LLVM errors as fatal [default: true] [possible values: true, false]
  -h, --help                            Print help
  -V, --version                         Print version