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From: "H.J. Lu" <hjl.tools@gmail.com>
To: Binutils <binutils@sourceware.org>
Subject: [PATCH] x86: Add NT_X86_CET note
Date: Fri, 11 Sep 2020 05:49:30 -0700	[thread overview]
Message-ID: <CAMe9rOrMXdkeF-_hAavUTcgeHiHqfkQXA9=jf_XzCrhhq4AEcg@mail.gmail.com> (raw)
In-Reply-To: <CAMe9rOpqBJokxOgO=+Jsxjs3nOn5HGyTsaGXhG9b_=Pm3Gy1Vg@mail.gmail.com>

[-- Attachment #1: Type: text/plain, Size: 1024 bytes --]

On Thu, Sep 10, 2020 at 3:57 PM H.J. Lu <hjl.tools@gmail.com> wrote:
>
> On Thu, Sep 10, 2020 at 3:53 PM H.J. Lu <hjl.tools@gmail.com> wrote:
> >
> >         * readelf.c (get_note_type): Support NT_X86_CET.
> > ---
> >  binutils/readelf.c | 2 ++
> >  1 file changed, 2 insertions(+)
> >
> > diff --git a/binutils/readelf.c b/binutils/readelf.c
> > index cb4208f7b9..95720ea055 100644
> > --- a/binutils/readelf.c
> > +++ b/binutils/readelf.c
> > @@ -17953,6 +17953,8 @@ get_note_type (Filedata * filedata, unsigned e_type)
> >         return _("NT_386_IOPERM (x86 I/O permissions)");
> >        case NT_X86_XSTATE:
> >         return _("NT_X86_XSTATE (x86 XSAVE extended state)");
> > +      case NT_X86_CET:
> > +       return _("NT_X86_CET (x86 CET state)");
> >        case NT_S390_HIGH_GPRS:
> >         return _("NT_S390_HIGH_GPRS (s390 upper register halves)");
> >        case NT_S390_TIMER:
> > --
> > 2.26.2
> >
>
> Never mind.  This needs NT_X86_CET from the kernel.

Here is the patch I am checking in.

-- 
H.J.

[-- Attachment #2: 0001-x86-Add-NT_X86_CET-note.patch --]
[-- Type: text/x-patch, Size: 1682 bytes --]

From d5e04b96d0223ac2faf7797a06bd9037bb8cd0dc Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Thu, 10 Sep 2020 11:13:05 -0700
Subject: [PATCH] x86: Add NT_X86_CET note

Define NT_X86_CET which is the proposed note for CET state to support
Intel CET in Linux kernel.  Will double check it after Intel CET patches
have been merged into Linux kernel.

binutils/

	* readelf.c (get_note_type): Support NT_X86_CET.

include/

	* elf/common.h (NT_X86_CET): New.
---
 binutils/readelf.c   | 2 ++
 include/elf/common.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/binutils/readelf.c b/binutils/readelf.c
index cb4208f7b9..95720ea055 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -17953,6 +17953,8 @@ get_note_type (Filedata * filedata, unsigned e_type)
 	return _("NT_386_IOPERM (x86 I/O permissions)");
       case NT_X86_XSTATE:
 	return _("NT_X86_XSTATE (x86 XSAVE extended state)");
+      case NT_X86_CET:
+	return _("NT_X86_CET (x86 CET state)");
       case NT_S390_HIGH_GPRS:
 	return _("NT_S390_HIGH_GPRS (s390 upper register halves)");
       case NT_S390_TIMER:
diff --git a/include/elf/common.h b/include/elf/common.h
index 805058146a..571e21af29 100644
--- a/include/elf/common.h
+++ b/include/elf/common.h
@@ -619,6 +619,8 @@
 					/*   note name must be "LINUX".  */
 #define NT_X86_XSTATE	0x202		/* x86 XSAVE extended state */
 					/*   note name must be "LINUX".  */
+#define NT_X86_CET	0x203		/* x86 CET state.  */
+					/*   note name must be "LINUX".  */
 #define NT_S390_HIGH_GPRS 0x300		/* S/390 upper halves of GPRs  */
 					/*   note name must be "LINUX".  */
 #define NT_S390_TIMER	0x301		/* S390 timer */
-- 
2.26.2


      reply	other threads:[~2020-09-11 12:50 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-10 22:53 [PATCH] readelf: Support NT_X86_CET H.J. Lu
2020-09-10 22:57 ` H.J. Lu
2020-09-11 12:49   ` H.J. Lu [this message]

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