[PATCH] D122106: [BOLT] NFC: Fix dynamic relocation offset for constant islands
Vladislav Khmelevsky via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sun Mar 20 14:48:58 PDT 2022
yota9 created this revision.
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Currently we don't fix dynamic relocation offset, assuming it is used
only for data sections that we don't move by bolt. But the constant
islands might have such a relocations too. The size of the functions and
the functions order might be changed during the bolt process, which will
ruin the initial relocation offset. This patch tries to eliminate this
problem by storing the emitted static relocation label and setting the
dynamic relocation output offset during the updateOutputValues.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D122106
Files:
bolt/include/bolt/Core/BinarySection.h
bolt/include/bolt/Core/Relocation.h
bolt/lib/Core/BinaryFunction.cpp
bolt/lib/Core/Relocation.cpp
bolt/lib/Rewrite/RewriteInstance.cpp
bolt/test/runtime/AArch64/constant-island-dyn-rel.s
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