[all-commits] [llvm/llvm-project] 7dcd90: [lld][ELF] Allow `data.rel.ro.hot` and `.data.rel....

[Mingming Liu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7dcd90df454e47a8db17c5ec956222e6b7858945
      https://github.com/llvm/llvm-project/commit/7dcd90df454e47a8db17c5ec956222e6b7858945
  Author: Mingming Liu <mingmingl at google.com>
  Date:   2025-07-23 (Wed, 23 Jul 2025)

  Changed paths:
    M lld/ELF/Config.h
    M lld/ELF/Driver.cpp
    M lld/ELF/Writer.cpp
    A lld/test/ELF/keep-text-section-prefix.s

  Log Message:
  -----------
  [lld][ELF] Allow `data.rel.ro.hot` and `.data.rel.ro.unlikely` to be RELRO (#148920)

https://discourse.llvm.org/t/rfc-profile-guided-static-data-partitioning/83744
proposes to partition a static data section (like `.data.rel.ro`) into
two sections, one grouping the cold ones and the other grouping the
rest.

lld requires all relro sections to be contiguous. To place
`.data.rel.ro.unlikely` in the middle of all relro sections, this change
proposes to add `.data.rel.ro.unlikely` explicitly as RELRO section.

---------

Co-authored-by: Sam Elliott <quic_aelliott at quicinc.com>



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