From: Kees Cook <keescook@chromium.org>
To: Sami Tolvanen <samitolvanen@google.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
linux-kernel@vger.kernel.org,
Kristen Carlson Accardi <kristen@linux.intel.com>
Subject: Re: [PATCH 0/3] objtool: add support for >64k sections
Date: Tue, 21 Apr 2020 13:11:04 -0700 [thread overview]
Message-ID: <202004211310.BF5AE73@keescook> (raw)
In-Reply-To: <20200421180724.245410-1-samitolvanen@google.com>
On Tue, Apr 21, 2020 at 11:07:21AM -0700, Sami Tolvanen wrote:
> This series fixes objtool for binaries with >64k sections, and
> includes optimizations to reduce the runtime for a binary with
> ~130k sections from >15 minutes to ~4 seconds.
>
> Sami Tolvanen (3):
> objtool: use gelf_getsymshndx to handle >64k sections
> objtool: optimize insn_hash for split sections
> objtool: optimize add_dead_ends for split sections
>
> tools/objtool/check.c | 48 ++++++++++++++++++++++++++-----------------
> tools/objtool/check.h | 9 ++++++++
> tools/objtool/elf.c | 24 +++++++++++++++-------
> tools/objtool/elf.h | 1 +
> 4 files changed, 56 insertions(+), 26 deletions(-)
>
>
> base-commit: ae83d0b416db002fe95601e7f97f64b59514d936
Awesome; thanks for sending these. I suspect they'll help with FGKASLR
as well.
--
Kees Cook
next prev parent reply other threads:[~2020-04-21 20:11 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-21 18:07 [PATCH 0/3] objtool: add support for >64k sections Sami Tolvanen
2020-04-21 18:07 ` [PATCH 1/3] objtool: use gelf_getsymshndx to handle " Sami Tolvanen
2020-04-21 20:11 ` Kees Cook
2020-04-21 18:07 ` [PATCH 2/3] objtool: optimize insn_hash for split sections Sami Tolvanen
2020-04-21 19:47 ` Peter Zijlstra
2020-04-21 20:13 ` Kees Cook
2020-04-21 20:20 ` Sami Tolvanen
2020-04-21 18:07 ` [PATCH 3/3] objtool: optimize add_dead_ends " Sami Tolvanen
2020-04-21 20:13 ` Josh Poimboeuf
2020-04-21 20:17 ` Kees Cook
2020-04-21 22:02 ` Sami Tolvanen
2020-04-21 20:14 ` Kees Cook
2020-04-21 20:11 ` Kees Cook [this message]
2020-04-21 22:08 ` [PATCH v2 0/2] objtool: add support for >64k sections Sami Tolvanen
2020-04-21 22:08 ` [PATCH v2 1/2] objtool: use gelf_getsymshndx to handle " Sami Tolvanen
2020-05-15 17:22 ` [tip: objtool/core] " tip-bot2 for Sami Tolvanen
2020-04-21 22:08 ` [PATCH v2 2/2] objtool: optimize add_dead_ends for split sections Sami Tolvanen
2020-04-21 23:43 ` Kees Cook
2020-05-15 17:22 ` [tip: objtool/core] " tip-bot2 for Sami Tolvanen
2020-04-21 23:52 ` [PATCH v2 0/2] objtool: add support for >64k sections Josh Poimboeuf
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