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Date: Tue, 25 Aug 2020 13:49:07 +0100 From: Julien Thierry <jthierry@...hat.com> To: linux-kernel@...r.kernel.org Cc: jpoimboe@...hat.com, peterz@...radead.org, mbenes@...e.cz, benh@...nel.crashing.org Subject: Re: [PATCH v4 0/4] Remove dependency of check subcmd upon orc Hi, Sorry for the duplicate send. An issue happened while sending this one. Please ignore this thread. Thanks, Julien On 8/25/20 1:46 PM, Julien Thierry wrote: > Hi, > > Matt Helsley's change[1] provided a base framework to opt-in/out > objtool subcommands at compile time. This makes it easier for > architectures to port objtool, one subcommand at a time. > > Orc generation relies on the check operation implementation. However, > the way this is done causes the check implementation to depend on the > implementation of orc generation functions to call if orc generation is > requested. This means that in order to implement check subcmd, orc > subcmd also need to be implemented. > > These patches aim at removing that dependency, having orc subcmd > being built on top of the check subcmd. > > > Changes since v3 [2]: > - Rebased on v5.9-rc1 > - Renamed objtool_setup_file() to objtool_open_read() > - Fixed misplaced elf_write() when file->elf->changed is true > - Avoid additional allocation for orc data and compile out orc > definition when not needed instead > > [1] https://www.spinics.net/lists/kernel/msg3510844.html > [2] https://lkml.org/lkml/2020/7/30/415 > > Cheers, > > Julien > > --> > > Julien Thierry (4): > objtool: Move object file loading out of check > objtool: Move orc outside of check > objtool: orc: Skip setting orc_entry for non-text sections > objtool: check: Use orc definition only when needed > > tools/objtool/Makefile | 4 +++ > tools/objtool/arch.h | 2 ++ > tools/objtool/builtin-check.c | 15 ++++++++++- > tools/objtool/builtin-orc.c | 27 +++++++++++++++++++- > tools/objtool/check.c | 47 ++++++----------------------------- > tools/objtool/check.h | 2 ++ > tools/objtool/objtool.c | 29 +++++++++++++++++++++ > tools/objtool/objtool.h | 4 ++- > tools/objtool/orc_gen.c | 3 +++ > tools/objtool/weak.c | 4 +-- > 10 files changed, 92 insertions(+), 45 deletions(-) > > -- > 2.21.3 > -- Julien Thierry
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