[all-commits] [llvm/llvm-project] 698ac4: [ELF] Add PT_RISCV_ATTRIBUTES program header

[Fangrui Song via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 698ac4aba555fa74f6f9310578c9b9bf42beaea0
      https://github.com/llvm/llvm-project/commit/698ac4aba555fa74f6f9310578c9b9bf42beaea0
  Author: Fangrui Song <i at maskray.me>
  Date:   2023-06-06 (Tue, 06 Jun 2023)

  Changed paths:
    M lld/ELF/Writer.cpp
    M lld/docs/ReleaseNotes.rst
    M lld/test/ELF/riscv-attributes.s

  Log Message:
  -----------
  [ELF] Add PT_RISCV_ATTRIBUTES program header

Close https://github.com/llvm/llvm-project/issues/63084

Unlike AArch32, RISC-V defines PT_RISCV_ATTRIBUTES to include the
SHT_RISCV_ATTRIBUTES section. There is no real-world use case yet.

We place PT_RISCV_ATTRIBUTES after PT_GNU_STACK, similar to PT_ARM_EXIDX. GNU ld
places PT_RISCV_ATTRIBUTES earlier, but the placement should not matter.

Link: https://github.com/riscv-non-isa/riscv-elf-psabi-doc/pull/71

Reviewed By: asb

Differential Revision: https://reviews.llvm.org/D152065