From: Matt Helsley <mhelsley@vmware.com>
To: Sami Tolvanen <samitolvanen@google.com>
Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
"Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>,
Kees Cook <keescook@chromium.org>,
linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] recordmcount: support >64k sections
Date: Fri, 24 Apr 2020 15:22:14 -0700 [thread overview]
Message-ID: <20200424222214.GC9040@rlwimi.vmware.com> (raw)
In-Reply-To: <20200424193046.160744-1-samitolvanen@google.com>
On Fri, Apr 24, 2020 at 12:30:46PM -0700, Sami Tolvanen wrote:
> When compiling a kernel with Clang and LTO, we need to run
> recordmcount on vmlinux.o with a large number of sections, which
> currently fails as the program doesn't understand extended
> section indexes. This change adds support for processing binaries
> with >64k sections.
>
> Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Feel free to add
Reviewed-by: Matt Helsley <mhelsley@vmware.com>
> ---
> Changes in v2:
> - Switched to unsigned int for (old|new)_shnum in append_func.
> - Added set_shnum and find_symtab helper functions and moved
> the new logic there.
>
> ---
> scripts/recordmcount.h | 98 +++++++++++++++++++++++++++++++++++++++---
> 1 file changed, 92 insertions(+), 6 deletions(-)
<snip>
WARNING: multiple messages have this Message-ID (diff)
From: Matt Helsley <mhelsley@vmware.com>
To: Sami Tolvanen <samitolvanen@google.com>
Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
"Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>,
Kees Cook <keescook@chromium.org>, <linux-kbuild@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] recordmcount: support >64k sections
Date: Fri, 24 Apr 2020 15:22:14 -0700 [thread overview]
Message-ID: <20200424222214.GC9040@rlwimi.vmware.com> (raw)
In-Reply-To: <20200424193046.160744-1-samitolvanen@google.com>
On Fri, Apr 24, 2020 at 12:30:46PM -0700, Sami Tolvanen wrote:
> When compiling a kernel with Clang and LTO, we need to run
> recordmcount on vmlinux.o with a large number of sections, which
> currently fails as the program doesn't understand extended
> section indexes. This change adds support for processing binaries
> with >64k sections.
>
> Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Feel free to add
Reviewed-by: Matt Helsley <mhelsley@vmware.com>
> ---
> Changes in v2:
> - Switched to unsigned int for (old|new)_shnum in append_func.
> - Added set_shnum and find_symtab helper functions and moved
> the new logic there.
>
> ---
> scripts/recordmcount.h | 98 +++++++++++++++++++++++++++++++++++++++---
> 1 file changed, 92 insertions(+), 6 deletions(-)
<snip>
next prev parent reply other threads:[~2020-04-24 22:22 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-22 23:24 [PATCH] recordmcount: support >64k sections Sami Tolvanen
2020-04-23 0:05 ` Steven Rostedt
2020-04-23 18:47 ` Sami Tolvanen
2020-04-23 21:47 ` Matt Helsley
2020-04-23 21:47 ` Matt Helsley
2020-04-24 19:18 ` Sami Tolvanen
2020-04-24 19:30 ` [PATCH v2] " Sami Tolvanen
2020-04-24 22:22 ` Matt Helsley [this message]
2020-04-24 22:22 ` Matt Helsley
2020-06-16 18:03 ` Kees Cook
2020-06-16 18:38 ` Steven Rostedt
2020-06-16 18:45 ` Kees Cook
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