On Fri, Feb 5, 2021 at 3:41 PM Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote: > > On Fri, Feb 5, 2021 at 3:37 PM Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote: > > > > Hi, > > > > when building with pahole v1.20 and binutils v2.35.2 plus Clang > > v12.0.0-rc1 and DWARF-v5 I see: > > ... > > + info BTF .btf.vmlinux.bin.o > > + [ != silent_ ] > > + printf %-7s %s\n BTF .btf.vmlinux.bin.o > > BTF .btf.vmlinux.bin.o > > + LLVM_OBJCOPY=/opt/binutils/bin/objcopy /opt/pahole/bin/pahole -J > > .tmp_vmlinux.btf > > [115] INT DW_ATE_unsigned_1 Error emitting BTF type > > Encountered error while encoding BTF. > > Grepping the pahole sources: > > $ git grep DW_ATE > dwarf_loader.c: bt->is_bool = encoding == DW_ATE_boolean; > dwarf_loader.c: bt->is_signed = encoding == DW_ATE_signed; > > Missing DW_ATE_unsigned encoding? > Checked the LLVM sources: clang/lib/CodeGen/CGDebugInfo.cpp: Encoding = llvm::dwarf::DW_ATE_unsigned_char; clang/lib/CodeGen/CGDebugInfo.cpp: Encoding = llvm::dwarf::DW_ATE_unsigned; clang/lib/CodeGen/CGDebugInfo.cpp: Encoding = llvm::dwarf::DW_ATE_unsigned_fixed; clang/lib/CodeGen/CGDebugInfo.cpp: ? llvm::dwarf::DW_ATE_unsigned ... lld/test/wasm/debuginfo.test:CHECK-NEXT: DW_AT_encoding (DW_ATE_unsigned) So, I will switch from GNU ld.bfd v2.35.2 to LLD-12. - Sedat -
