linux-kernel - [PATCH v3 0/4] Remove dependency of check subcmd upon orc

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Message-Id: <20200730094143.27494-1-jthierry@redhat.com>
Date:   Thu, 30 Jul 2020 10:41:39 +0100
From:   Julien Thierry <jthierry@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     jpoimboe@...hat.com, peterz@...radead.org, mhelsley@...are.com,
        mbenes@...e.cz, Julien Thierry <jthierry@...hat.com>
Subject: [PATCH v3 0/4] Remove dependency of check subcmd upon orc

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 v2 [2]:
- Rebased on recent tip/objtool/core

[1] https://www.spinics.net/lists/kernel/msg3510844.html
[2] https://lkml.org/lkml/2020/6/8/59

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: orc_gen: Move orc_entry out of instruction structure

 tools/objtool/builtin-check.c |  7 ++-
 tools/objtool/builtin-orc.c   | 27 +++++++++++-
 tools/objtool/check.c         | 47 ++++----------------
 tools/objtool/check.h         |  1 -
 tools/objtool/objtool.c       | 30 +++++++++++++
 tools/objtool/objtool.h       |  5 ++-
 tools/objtool/orc_gen.c       | 83 ++++++++++++++++++++---------------
 tools/objtool/weak.c          |  4 +-
 8 files changed, 122 insertions(+), 82 deletions(-)

--
2.21.3