libbpf: Extend linker API to support in-memory ELF files #4779
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Move the filename arguments and file-descriptor handling from init_output_elf() and linker_load_obj_file() and instead handle them at the top-level in bpf_linker__new() and bpf_linker__add_file(). This will allow the inner functions to be shared with a new, non-filename-based, API in the next commit. Signed-off-by: Alastair Robertson <[email protected]>
The new_fd and add_fd functions correspond to the original new and add_file functions, but accept an FD instead of a file name. This gives API consumers the option of using anonymous files/memfds to avoid writing ELFs to disk. This new API will be useful for performing linking as part of bpftrace's JIT compilation. The add_buf function is a convenience wrapper that does the work of creating a memfd for the caller. Signed-off-by: Alastair Robertson <[email protected]>
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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=916884 irrelevant now. Closing PR. |
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Pull request for series with
subject: libbpf: Extend linker API to support in-memory ELF files
version: 3
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=916884