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| author | Fangrui Song <i@maskray.me> | 2024-01-08 16:12:49 -0800 |
|---|---|---|
| committer | Fangrui Song <i@maskray.me> | 2024-01-08 16:12:49 -0800 |
| commit | 7c89b20e02ff079ec84fc54880dbc6c063d8c915 (patch) | |
| tree | ea1a13c3c23618538b6dcb487cc37d1e9213cba1 /llvm/lib/CodeGen/BasicBlockSections.cpp | |
| parent | 6958986f77bdbedd6ba571af7b546018f9108067 (diff) | |
| download | llvm-7c89b20e02ff079ec84fc54880dbc6c063d8c915.zip llvm-7c89b20e02ff079ec84fc54880dbc6c063d8c915.tar.gz llvm-7c89b20e02ff079ec84fc54880dbc6c063d8c915.tar.bz2 | |
[ELF] OVERLAY: support optional start address and LMA
https://reviews.llvm.org/D44780 implemented rudimentary support for
OVERLAY. The start address and `AT(ldaddr)` in `OVERLAY [start] :
[NOCROSSREFS] [AT ( ldaddr )]` are not optional.
In addition, there are two issues:
* When the start address is `.`, subsequent sections don't share the
address of the first overlay section.
* When the first overlay section is empty and discardable, `p_paddr` is
incorrectly zero. This is because a discarded section has a zero
address, causing `prev->getLMA() + prev->size` where `prev` refers to
the first section to evaluate to zero.
This patch supports optional start address and LMA and fix the issues.
Close #77265
Pull Request: https://github.com/llvm/llvm-project/pull/77272
Diffstat (limited to 'llvm/lib/CodeGen/BasicBlockSections.cpp')
0 files changed, 0 insertions, 0 deletions