[PATCH] D66749: [ELF][ARM] Allow PT_LOAD to have overlapping p_offset ranges on EM_ARM

[Fangrui Song via Phabricator via llvm-commits]

MaskRay created this revision.
MaskRay added reviewers: grimar, peter.smith, ruiu.
Herald added subscribers: llvm-commits, kristof.beyls, arichardson, javed.absar, emaste, srhines.
Herald added a reviewer: espindola.
Herald added a project: LLVM.

Port the D64906 <https://reviews.llvm.org/D64906> technique to ARM. It deletes 3 alignments at
PT_LOAD boundaries for the default case: the size of an arm binary
decreases by at most 12kb.


Repository:
  rLLD LLVM Linker

https://reviews.llvm.org/D66749

Files:
  ELF/Writer.cpp
  test/ELF/arm-abs32-dyn.s
  test/ELF/arm-bl-v6.s
  test/ELF/arm-branch-undef-weak-plt-thunk.s
  test/ELF/arm-copy.s
  test/ELF/arm-execute-only.s
  test/ELF/arm-exidx-add-missing.s
  test/ELF/arm-exidx-canunwind.s
  test/ELF/arm-exidx-dedup.s
  test/ELF/arm-exidx-emit-relocs.s
  test/ELF/arm-exidx-gc.s
  test/ELF/arm-exidx-order.s
  test/ELF/arm-exidx-shared.s
  test/ELF/arm-fpic-got.s
  test/ELF/arm-gnu-ifunc-plt.s
  test/ELF/arm-gnu-ifunc.s
  test/ELF/arm-got-relative.s
  test/ELF/arm-gotoff.s
  test/ELF/arm-icf-exidx.s
  test/ELF/arm-mov-relocs.s
  test/ELF/arm-pie-relative.s
  test/ELF/arm-plt-reloc.s
  test/ELF/arm-reloc-abs32.s
  test/ELF/arm-sbrel32.s
  test/ELF/arm-target1.s
  test/ELF/arm-target2.s
  test/ELF/arm-thumb-interwork-shared.s
  test/ELF/arm-thumb-interwork-thunk-v5.s
  test/ELF/arm-thumb-no-undefined-thunk.s
  test/ELF/arm-thumb-plt-range-thunk-os.s
  test/ELF/arm-thumb-plt-reloc.s
  test/ELF/arm-thumb-thunk-empty-pass.s
  test/ELF/arm-thumb-thunk-symbols.s
  test/ELF/arm-thumb-undefined-weak-narrow.test
  test/ELF/arm-thumb-undefined-weak.s
  test/ELF/arm-thunk-largesection.s
  test/ELF/arm-thunk-multipass-plt.s
  test/ELF/arm-thunk-nosuitable.s
  test/ELF/arm-thunk-re-add.s
  test/ELF/arm-tls-gd-nonpreemptible.s
  test/ELF/arm-tls-gd32.s
  test/ELF/arm-tls-ie32.s
  test/ELF/arm-tls-ldm32.s
  test/ELF/arm-tls-le32.s
  test/ELF/arm-tls-norelax-gd-ie.s
  test/ELF/arm-tls-norelax-gd-le.s
  test/ELF/arm-tls-norelax-ie-le.s
  test/ELF/arm-tls-norelax-ld-le.s
  test/ELF/arm-undefined-weak.s
  test/ELF/global-offset-table-position-arm.s
  test/ELF/pack-dyn-relocs-arm2.s
  test/ELF/pack-dyn-relocs.s

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