* Josh Poimboeuf <jpoim...@redhat.com> wrote:
> Now that objtool knows the states of all registers on the stack for each
> instruction, it's straightforward to generate debuginfo for an unwinder
> to use.
>
> Instead of generating DWARF, generate a new format called undwarf, which
> is more suitable for an in-kernel unwinder. See
> tools/objtool/Documentation/undwarf.txt for a more detailed description
> of this new debuginfo format and why it's preferable to DWARF.
>
> Signed-off-by: Josh Poimboeuf <jpoim...@redhat.com>
> ---
> tools/objtool/Build | 3 +
> tools/objtool/Documentation/stack-validation.txt | 46 ++---
> tools/objtool/builtin-check.c | 2 +-
> tools/objtool/builtin-undwarf.c | 70 ++++++++
> tools/objtool/builtin.h | 1 +
> tools/objtool/check.c | 59 ++++++-
> tools/objtool/check.h | 15 +-
> tools/objtool/elf.c | 212 ++++++++++++++++++++--
> tools/objtool/elf.h | 15 +-
> tools/objtool/objtool.c | 3 +-
> tools/objtool/undwarf-types.h | 81 +++++++++
Just a very quick stylistic suggestion: please name the header
'undwarf_types.h'
(note the underscore versus hyphen), which is the common naming pattern used in
the kernel.
Thanks,
Ingo
