[bpf] fix dwarf elf relocs and line numbers
- teach RelocVisitor to recognize bpf relocations
- fix AsmInfo->PointerSize to make sure dwarf is emitted correctly
- add a test for the above
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
llvm-svn: 287521
diff --git a/llvm/lib/Target/BPF/MCTargetDesc/BPFELFObjectWriter.cpp b/llvm/lib/Target/BPF/MCTargetDesc/BPFELFObjectWriter.cpp
index 4b92e3e..3d1c0eb 100644
--- a/llvm/lib/Target/BPF/MCTargetDesc/BPFELFObjectWriter.cpp
+++ b/llvm/lib/Target/BPF/MCTargetDesc/BPFELFObjectWriter.cpp
@@ -41,13 +41,13 @@
default:
llvm_unreachable("invalid fixup kind!");
case FK_SecRel_8:
- return ELF::R_X86_64_64;
+ return ELF::R_BPF_64_64;
case FK_SecRel_4:
- return ELF::R_X86_64_PC32;
+ return ELF::R_BPF_64_32;
case FK_Data_8:
- return IsPCRel ? ELF::R_X86_64_PC64 : ELF::R_X86_64_64;
+ return ELF::R_BPF_64_64;
case FK_Data_4:
- return IsPCRel ? ELF::R_X86_64_PC32 : ELF::R_X86_64_32;
+ return ELF::R_BPF_64_32;
}
}