llvm-objdump does not work for BPF in some reasonably common cases #42375
Description
| Bugzilla Link | 43030 |
| Resolution | FIXED |
| Resolved on | Aug 20, 2019 02:56 |
| Version | 9.0 |
| OS | All |
| Blocks | #41819 |
| CC | @zmodem |
Extended Description
Commit https://reviews.llvm.org/D57939 ("[DWARF] Refactor
RelocVisitor and fix computation of SHT_RELA-typed relocation entries)
made a change for relocation resolution when operating
on an object file.
The change unfortunately broke BPF as given SymbolValue (S) and
Addent (A), previously relocation is resolved to
S + A
and after the change, it is resolved to
S
This bug will happen if there are two bpf programs
defined in the same file, which is fairly common.
The bug is fixed in trunk (currently 10.0.0):
https://reviews.llvm.org/rL369199
This is to request backport the fix to release 9.0.0.