llvm-project

Commit Graph

Author	SHA1	Message	Date
George Rimar	11632a9cfb	[ELF] - Get rid of precompiled input objects from testcases. We have verneed1.so, verneed2.so files and verneed.so.sh script to produce them. They were committed long time ago when LLD was not yet able to produce some sections for versioning (".gnu.version_r" I think). There is no point to have them as binaries anymore. Patch creates asm inputs instead based on verneed.so.sh content. Differential revision: https://reviews.llvm.org/D38505 llvm-svn: 314889	2017-10-04 09:46:53 +00:00
Rafael Espindola	8dbb7e1d61	Also reject 32 bit dynamic relocs when producing executable. They point to a shared library, so they would still overflow at runtime. llvm-svn: 272303	2016-06-09 20:35:27 +00:00
Peter Collingbourne	ca8c994818	ELF: Compute used bit for --as-needed during symbol resolution. We can now use this to decide whether to emit a verneed during the final pass over the symbols. We were previously wrongly creating a verneed entry in the case where all references to a DSO's symbols were weak. In a future change we may also want to use the used bit to control whether shared symbols are preemptible and appear in the dynsym. This seems a little tricky to do at the moment because isNeeded() is templated. The only other functional change here is that we emit a DT_NEEDED for DSOs whose symbols are all preempted by objects that appear later in the link. But that doesn't seem too important to me. Differential Revision: http://reviews.llvm.org/D21171 llvm-svn: 272282	2016-06-09 18:01:35 +00:00

Author

SHA1

Message

Date

George Rimar

11632a9cfb

[ELF] - Get rid of precompiled input objects from testcases.

We have verneed1.so, verneed2.so files and verneed.so.sh script
to produce them. They were committed long time ago when LLD
was not yet able to produce some sections for versioning
(".gnu.version_r" I think).

There is no point to have them as binaries anymore. Patch
creates asm inputs instead based on verneed.so.sh content.

Differential revision: https://reviews.llvm.org/D38505

llvm-svn: 314889

2017-10-04 09:46:53 +00:00

Rafael Espindola

8dbb7e1d61

Also reject 32 bit dynamic relocs when producing executable.

They point to a shared library, so they would still overflow at runtime.

llvm-svn: 272303

2016-06-09 20:35:27 +00:00

Peter Collingbourne

ca8c994818

ELF: Compute used bit for --as-needed during symbol resolution.

We can now use this to decide whether to emit a verneed during the final
pass over the symbols. We were previously wrongly creating a verneed entry
in the case where all references to a DSO's symbols were weak.

In a future change we may also want to use the used bit to control whether
shared symbols are preemptible and appear in the dynsym. This seems a little
tricky to do at the moment because isNeeded() is templated.

The only other functional change here is that we emit a DT_NEEDED for DSOs
whose symbols are all preempted by objects that appear later in the link. But
that doesn't seem too important to me.

Differential Revision: http://reviews.llvm.org/D21171

llvm-svn: 272282

2016-06-09 18:01:35 +00:00

3 Commits