[bazel] Update binutils to 2.44

[jwnrt]

Binary hashes are unchanged:

ROM:

$ bazel build //sw/device/silicon_creator/rom:mask_rom --config riscv32
$ sha256sum bazel-bin/sw/device/silicon_creator/rom/mask_rom_silicon_creator.39.scr.vmem
ee3198da4616a1e94e9156ddcb532fc5208653fc8077278a33a1d098d3c6d58f  bazel-bin/sw/device/silicon_creator/rom/mask_rom_silicon_creator.39.scr.vmem

ROM_EXT:

$ bazel build //sw/device/silicon_creator/rom_ext:rom_ext_dice_x509_slot_virtual
$ sha256sum bazel-bin/sw/device/silicon_creator/rom_ext/rom_ext_dice_x509_slot_virtual_silicon_creator.64.scr.vmem
f145100c70ec2815a46ee3764baf27f53626338e4417e9a3942c4d37b245cd6b  bazel-bin/sw/device/silicon_creator/rom_ext/rom_ext_dice_x509_slot_virtual_silicon_creator.64.scr.vmem

[ziuziakowska]

LGTM, thanks! 🙏

[andrea-caforio]

To what extend are the GNU binutils used in OpenTitan? Currently working on something tangential.

[jwnrt]

From this version of binutils we use:

• ar for creating archives
• objcopy for turning ELFs into binaries
• objdump for generating disassemblies
• strip for stripping ELFs
• gdb is used in //sw/host/penetrationtests/python/fi and some docs

For OTBN it's slightly more complicated, we download a pinned 2022 version of the toolchain to be used by OTBN, but when Bazel builds OTBN binaries it uses this updated version of binutils. Grep for otbn_binary and otbn_library to see the uses of this updated toolchain.

[andrea-caforio]

Thanks @jwnrt for the explanation.