On Tue, Sep 3, 2024 at 12:34 AM Tony Ambardar <tony.ambardar@xxxxxxxxx> wrote:
>
> Allow static linking object files of either endianness, checking that input
> files have consistent byte-order, and setting output endianness from input.
>
> Linking requires in-memory processing of programs, relocations, sections,
> etc. in native endianness, and output conversion to target byte-order. This
> is enabled by built-in ELF translation and recent BTF/BTF.ext endianness
> functions. Further add local functions for swapping byte-order of sections
> containing BPF insns.
>
> Signed-off-by: Tony Ambardar <tony.ambardar@xxxxxxxxx>
> ---
> tools/lib/bpf/linker.c | 78 +++++++++++++++++++++++++++++++++---------
> 1 file changed, 62 insertions(+), 16 deletions(-)
>
This one looks nice, simple and straightforward, thanks.
> diff --git a/tools/lib/bpf/linker.c b/tools/lib/bpf/linker.c
> index 7489306cd6f7..85562e26c3de 100644
> --- a/tools/lib/bpf/linker.c
> +++ b/tools/lib/bpf/linker.c
> @@ -135,6 +135,7 @@ struct bpf_linker {
> int fd;
> Elf *elf;
> Elf64_Ehdr *elf_hdr;
> + bool swapped_endian;
>
[...]
