Commit Graph

3 Commits

Author SHA1 Message Date
Alexander Shaposhnikov 6ecc6e62c1 [llvm-objcopy] Implement support for section groups
This diff adds support for SHT_GROUP sections to llvm-objcopy.
Some sections are interrelated and comprise a group.
For example, a definition of an inline function might require, 
in addition to the section containing its instructions, 
a read-only data section containing literals referenced inside the function.
A section of the type SHT_GROUP contains the indices of the group members,
therefore, it needs to be updated whenever the indices change.
Similarly, the fields sh_link, sh_info should be recalculated as well.

[Resubmit r328012 with the proper handling of endianness]

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D43996

llvm-svn: 328143
2018-03-21 19:53:44 +00:00
Alexander Shaposhnikov e34104d16c [llvm-objcopy] Revert the tests from r328012
Temporarily revert the tests from r328012 as well.

llvm-svn: 328026
2018-03-20 19:50:14 +00:00
Alexander Shaposhnikov 43b8acdfd7 [llvm-objcopy] Implement support for section groups
This diff adds support for SHT_GROUP sections to llvm-objcopy.
Some sections are interrelated and comprise a group.
For example, a definition of an inline function might require, 
in addition to the section containing its instructions, 
a read-only data section containing literals referenced inside the function.
A section of the type SHT_GROUP contains the indices of the group members,
therefore, it needs to be updated whenever the indices change.
Similarly, the fields sh_link, sh_info should be recalculated as well.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D43996

llvm-svn: 328012
2018-03-20 18:20:42 +00:00