一如既往，主要在工具链领域耕耘。给这些high-profile OSS贡献的时候，希望透过这个微小的角度改变世界。

llvm-project

• Enabled --features=layering_check for Bazel's llvm and clang projects
• Implemented LLVM_ENABLE_REVERSE_ITERATION for StringMap
• Added llvm::xxh3_64bits and adopted it in llvm/clang/lld

Reviewed many commits. A lot of people don't add a Reviewed By: tag. Anyway, counting commits with the tag can give an underestimate.

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% git shortlog -sn 2679e8bba3e166e3174971d040b9457ec7b7d768...main --grep 'Reviewed .*MaskRay' | awk '{s+=$1}END{print s}'
395

Many GitHub pull requests are not counted.

I made 700+ commits this year. Many are clean-up commits or fixup for others' work. I hope that I can do more useful work next year.

I created a read-only archive of the LLVM phabricator instance.

lld/ELF

I made some slides on how I improved the performance of lld/ELF.

binutils

Reported many bugs and feature requests:

• ld: Should --gc-sections respect RHS of a symbol assignment?
• objcopy: add support for changing ELF symbol visibility
• rtld: resolve ifunc relocations after JUMP_SLOT/GLOB_DAT/etc
• ld riscv: --emit-relocs does not retain the original relocation type
• gas aarch64: GOT relocations referencing a local symbol should not be changed to reference STT_SECTION
• objcopy --set-section-flags: support toggling a flag
• gas x86: reject {call,jmp} [offset func] in Intel syntax

My commits:

• PR30592 objcopy: allow --set-section-flags to add or remove SHF_X86_64_LARGE
• ld: Allow R_386_GOT32 for call *__tls_get_addr@GOT(%reg)
• ld: Allow R_X86_64_GOTPCREL for call *__tls_get_addr@GOTPCREL(%rip)
• RISC-V: Add --[no-]relax-gp to ld

Linux kernel

8 commits. Consulted on a number of toolchain questions.

Blog

Wrote 28 blog posts (including this one, mainly about toolchains) and revised many posts initially written between 2020 and 2023.

Misc

Trips: Orlando, Pennsylvania, New York City, Alaska, Ontario, Quebec, Halifax, Montreal, Chicago, Atlanta, Miami, Jamaica, Haiti.

Mastodon: https://hachyderm.io/@meowray