Viewing profile — MaskRay

Interesting to see that people are still spending much time on assembly languages :) I've had a lot of fun with it in recent years as well. (Shameless plug: I've written a few on L…

While we could utilize zigzag encoding (i>>31) ^ (i // One-byte case for SLEB128 int64_t from_signext(uint64_t v) { return v // One-byte case for ULEB128 with zig-zag encoding int6…

GetProgramPath consulting PATH is a pretty standard behavior inspired by GCC. Clang driver may find an external program from its program paths (e.g. -ccc-install-dir, the GCC insta…

git switch v6.9 The riscv build succeeded. For the x86-64 build I ran into % make O=/tmp/linux/x86 ARCH=x86_64 CC=/tmp/p/claudes-c-compiler/target/release/ccc-x86 HOSTCC=/tmp/p/cla…

I want to verify the claim that it builds the Linux kernel. It quickly runs into errors, but yeah, still pretty cool! make O=/tmp/linux/x86 ARCH=x86_64 CC=/tmp/p/claudes-c-compiler…

I accidentally published handling-long-branches.html . I actually removed it quickly, but Google Search already got it.... https://news.ycombinator.com/item?id=46759921 (Long branc…

Amazing! I read you article in 2012 when the link was https://homepages.cwi.nl/~tromp/maze.html I was learning Haskell and Ocaml and wrote my own article in Chinese then https://ma…

I recall that google3 switched to -funsigned-char for x86-64 a long time ago.

Open source project maintenance follows a similar model, but with a different set of stakes. The "price tag" of voicing concerns is lower, yet raise them too often and you still ea…

We are missing tooling to partition a huge binary into a few larger shared objects. As my https://maskray.me/blog/2023-05-14-relocation-overflow-and-c... (linked by author, thanks!…

Note, sections without the SHF_ALLOC flag, such as `.debug_*` sections, do not contribute to the relocation distance pressure. Many 10+GiB binaries (likely due to not using split D…

Rex

The compiler team has never had more than three people at any time, but both the language and its feature set are impressive. I don't know whether they got any sponsorship. Now tha…

Tested programs: lz4 zstd brotli bzip3 xz lzham: The build system is not well-polished for Linux. I have forked it, fixed build errors due to stdint.h, and installed lzhamtest. IMH…

I don't follow Zig's development. https://ziglang.org/download/0.15.1/release-notes.html#Motiv... feels vague to me, and linking to a lengthy video isn't very clarifying. Still, I …

Thanks for sharing the insight! As I observed when I was at Google: tcmalloc wasn't a dedicated team but a project driven by server performance optimization engineers aiming to imp…

Build instructions In the llvm/llvm-project repository git switch origin/release/19.x cmake -GNinja -S. -B/tmp/out/custom -DLLVM_TARGETS_TO_BUILD='X86;AArch64' -DLLVM_ENABLE_PROJEC…

Regarding: `cmpb $0, %fs:__tls_guard@tpoff`, the per-function-call overhead is due to dynamic initialization on first use requirement: > Block variables with static or thread(since…