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Increase jemalloc aarch64 page size limit (#5244) (#6831)

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#5244


  Pass `JEMALLOC_SYS_WITH_LG_PAGE=16` env to aarch64 cross-compilation to support systems with up to 64-KiB page sizes. This is backwards-compatible for the current (most usual) 4-KiB systems.
This commit is contained in:
Janick Martinez Esturo
2025-01-30 06:14:57 +01:00
committed by GitHub
parent 66c6552e8c
commit d297d08c6b
6 changed files with 46 additions and 11 deletions
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11
Cross.toml
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@@ -3,3 +3,14 @@ pre-build = ["apt-get install -y cmake clang-5.0"]
[target.aarch64-unknown-linux-gnu]
pre-build = ["apt-get install -y cmake clang-5.0"]
# Allow setting page size limits for jemalloc at build time:
# For certain architectures (like aarch64), we must compile
# jemalloc with support for large page sizes, otherwise the host's
# system page size will be used, which may not work on the target systems.
# JEMALLOC_SYS_WITH_LG_PAGE=16 tells jemalloc to support up to 64-KiB
# pages. See: https://github.com/sigp/lighthouse/issues/5244
[build.env]
passthrough = [
"JEMALLOC_SYS_WITH_LG_PAGE",
]