Commit Graph

6 Commits

Author SHA1 Message Date
Jez Ng 1aa29dffce [lld-macho] Support subtractor relocations that reference sections
The minuend (but not the subtrahend) can reference a section.

Note that we do not yet properly validate that the subtrahend isn't
referencing a section; I've filed PR50034 to track that.

I've also extended the reloc-subtractor.s test to reorder symbols, to
make sure that the addends are being associated with the minuend (and not
the subtrahend) relocation.

Fixes PR49999.

Reviewed By: #lld-macho, thakis

Differential Revision: https://reviews.llvm.org/D100804
2021-04-20 16:58:57 -04:00
Jez Ng 1acda12d00 [lld-macho] Make load relaxation work for arm64_32
arm64_32 uses 32-bit GOT loads, so we should accept those
instructions in `ARM64Common::relaxGotLoad()` too.

Reviewed By: #lld-macho, gkm

Differential Revision: https://reviews.llvm.org/D100229
2021-04-15 21:16:34 -04:00
Jez Ng 3bc88eb392 [lld-macho] Add support for arm64_32
From what I can tell, it's pretty similar to arm64. The two main differences
are:

1. No 64-bit relocations
2. Stub code writes to 32-bit registers instead of 64-bit

Plus of course the various on-disk structures like `segment_command` are using
the 32-bit instead of the 64-bit variants.

Reviewed By: #lld-macho, gkm

Differential Revision: https://reviews.llvm.org/D99822
2021-04-15 21:16:33 -04:00
Jez Ng 8ca366935b Revert "[lld-macho] Add support for arm64_32" and other stacked diffs
This reverts commits:
* 8914902b01
* 35a745d814
* 682d1dfe09
2021-04-13 12:40:58 -04:00
Jez Ng 682d1dfe09 [lld-macho] Make load relaxation work for arm64_32
arm64_32 uses 32-bit GOT loads, so we should accept those
instructions in `ARM64Common::relaxGotLoad()` too.

Reviewed By: #lld-macho, gkm

Differential Revision: https://reviews.llvm.org/D100229
2021-04-13 10:43:28 -04:00
Jez Ng 8914902b01 [lld-macho] Add support for arm64_32
From what I can tell, it's pretty similar to arm64. The two main differences
are:

1. No 64-bit relocations
2. Stub code writes to 32-bit registers instead of 64-bit

Plus of course the various on-disk structures like `segment_command` are using
the 32-bit instead of the 64-bit variants.

Reviewed By: #lld-macho, gkm

Differential Revision: https://reviews.llvm.org/D99822
2021-04-13 10:43:28 -04:00