| Message ID | 20231129-riscv-restrict-dwarf5-llvm-v1-0-ec0d368fb538@kernel.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | RISC-V: Disable DWARF5 with known broken LLVM versions | expand |
On Wed, Nov 29, 2023 at 3:30 PM Nathan Chancellor <nathan@kernel.org> wrote: > > Hi all, > > This series disables DWARF5 for LLVM versions where it is known to be > broken due to linker relaxation: > > https://github.com/llvm/llvm-project/commit/bbc0f99f3bc96f1db16f649fc21dd18e5b0918f6 > > If I understand correctly, it sounds like GNU binutils has a similar > issue but I am not sure of the status of the fixes and such, so I did > not bother with checking for it but it should be easy to add if so > desired. Using Clang with -fno-integrated-as requires binutils>=2.41 https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=f1cd8b94e7c941c2a9107c1112ab2339916b8efd "RISC-V: Support subtraction of .uleb128." Using -fno-integrated-as is less common nowadays, so I agree we do not bother with checking for it now, if it is too troublesome. > Cheers, > Nathan > > --- > Nathan Chancellor (2): > riscv: Hoist linker relaxation disabling logic into Kconfig > riscv: Restrict DWARF5 when building with LLVM to known working versions > > arch/riscv/Kconfig | 14 ++++++++++++++ > arch/riscv/Makefile | 4 +--- > lib/Kconfig.debug | 1 + > 3 files changed, 16 insertions(+), 3 deletions(-) > --- > base-commit: 2cc14f52aeb78ce3f29677c2de1f06c0e91471ab > change-id: 20231129-riscv-restrict-dwarf5-llvm-a9824bb974cb > > Best regards, > -- > Nathan Chancellor <nathan@kernel.org> >
Hi all, This series disables DWARF5 for LLVM versions where it is known to be broken due to linker relaxation: https://github.com/llvm/llvm-project/commit/bbc0f99f3bc96f1db16f649fc21dd18e5b0918f6 If I understand correctly, it sounds like GNU binutils has a similar issue but I am not sure of the status of the fixes and such, so I did not bother with checking for it but it should be easy to add if so desired. Cheers, Nathan --- Nathan Chancellor (2): riscv: Hoist linker relaxation disabling logic into Kconfig riscv: Restrict DWARF5 when building with LLVM to known working versions arch/riscv/Kconfig | 14 ++++++++++++++ arch/riscv/Makefile | 4 +--- lib/Kconfig.debug | 1 + 3 files changed, 16 insertions(+), 3 deletions(-) --- base-commit: 2cc14f52aeb78ce3f29677c2de1f06c0e91471ab change-id: 20231129-riscv-restrict-dwarf5-llvm-a9824bb974cb Best regards,