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Tue, 10 Mar 2026 07:12:23 -0700 (PDT) MIME-Version: 1.0 References: <20260303050641.198127-1-thiago.bauermann@linaro.org> <20260303050641.198127-4-thiago.bauermann@linaro.org> <874imwcjny.fsf@linaro.org> In-Reply-To: <874imwcjny.fsf@linaro.org> From: Luis Date: Tue, 10 Mar 2026 11:12:12 -0300 X-Gm-Features: AaiRm52HtibeUBIRMPlzpvYepXcut4npEMZMiV-3xbWEJZGz62Yzj0U_MPHMtMk Message-ID: Subject: Re: [PATCH v4 3/6] GDB: aarch64-linux: Reorganize MTE-related definitions To: Thiago Jung Bauermann Cc: gdb-patches@sourceware.org, Chris Packham , Tom Tromey , Simon Marchi , sunilkumar.dora@windriver.com Content-Type: multipart/alternative; boundary="000000000000b9063d064cac1baf" X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces~public-inbox=simark.ca@sourceware.org --000000000000b9063d064cac1baf Content-Type: text/plain; charset="UTF-8" Thanks. Approved-By: Luis Machado On Wed, Mar 4, 2026, 01:17 Thiago Jung Bauermann < thiago.bauermann@linaro.org> wrote: > Thiago Jung Bauermann writes: > > > diff --git a/gdb/nat/aarch64-mte-linux-ptrace.h > b/gdb/nat/aarch64-mte-linux-ptrace.h > > index d31fa9f3c071..653de33108c8 100644 > > --- a/gdb/nat/aarch64-mte-linux-ptrace.h > > +++ b/gdb/nat/aarch64-mte-linux-ptrace.h > > @@ -20,6 +20,11 @@ > > #ifndef GDB_NAT_AARCH64_MTE_LINUX_PTRACE_H > > #define GDB_NAT_AARCH64_MTE_LINUX_PTRACE_H > > > > +/* Feature check for Memory Tagging Extension. */ > > +#ifndef HWCAP2_MTE > > +#define HWCAP2_MTE (1 << 18) > > +#endif > > + > > /* MTE allocation tag access */ > > > > #ifndef PTRACE_PEEKMTETAGS > > As with the previous patches, I locally amended this one to also include > . And since this header also defines some ptrace constants, > also include : > > diff --git a/gdb/nat/aarch64-mte-linux-ptrace.h > b/gdb/nat/aarch64-mte-linux-ptrace.h > index 653de33108c8..7d1e7c1960d1 100644 > --- a/gdb/nat/aarch64-mte-linux-ptrace.h > +++ b/gdb/nat/aarch64-mte-linux-ptrace.h > @@ -20,6 +20,9 @@ > #ifndef GDB_NAT_AARCH64_MTE_LINUX_PTRACE_H > #define GDB_NAT_AARCH64_MTE_LINUX_PTRACE_H > > +#include > +#include > + > /* Feature check for Memory Tagging Extension. */ > #ifndef HWCAP2_MTE > #define HWCAP2_MTE (1 << 18) > > -- > Thiago > --000000000000b9063d064cac1baf Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Thanks.

Appr= oved-By: Luis Machado <lu= is.machado.foss@gmail.com>

On Wed, Mar 4,= 2026, 01:17 Thiago Jung Bauermann <thiago.bauermann@linaro.org> wrote:
Thiago Jung Bauermann <thiago.bauermann@lina= ro.org> writes:

> diff --git a/gdb/nat/aarch64-mte-linux-ptrace.h b/gdb/nat/aarch64-mte-= linux-ptrace.h
> index d31fa9f3c071..653de33108c8 100644
> --- a/gdb/nat/aarch64-mte-linux-ptrace.h
> +++ b/gdb/nat/aarch64-mte-linux-ptrace.h
> @@ -20,6 +20,11 @@
>=C2=A0 #ifndef GDB_NAT_AARCH64_MTE_LINUX_PTRACE_H
>=C2=A0 #define GDB_NAT_AARCH64_MTE_LINUX_PTRACE_H
>=C2=A0
> +/* Feature check for Memory Tagging Extension.=C2=A0 */
> +#ifndef HWCAP2_MTE
> +#define HWCAP2_MTE=C2=A0 (1 << 18)
> +#endif
> +
>=C2=A0 /* MTE allocation tag access */
>=C2=A0
>=C2=A0 #ifndef PTRACE_PEEKMTETAGS

As with the previous patches, I locally amended this one to also include <asm/hwcap.h>. And since this header also defines some ptrace constan= ts,
also include <asm/ptrace.h>:

diff --git a/gdb/nat/aarch64-mte-linux-ptrace.h b/gdb/nat/aarch64-mte-linux= -ptrace.h
index 653de33108c8..7d1e7c1960d1 100644
--- a/gdb/nat/aarch64-mte-linux-ptrace.h
+++ b/gdb/nat/aarch64-mte-linux-ptrace.h
@@ -20,6 +20,9 @@
=C2=A0#ifndef GDB_NAT_AARCH64_MTE_LINUX_PTRACE_H
=C2=A0#define GDB_NAT_AARCH64_MTE_LINUX_PTRACE_H

+#include <asm/hwcap.h>
+#include <asm/ptrace.h>
+
=C2=A0/* Feature check for Memory Tagging Extension.=C2=A0 */
=C2=A0#ifndef HWCAP2_MTE
=C2=A0#define HWCAP2_MTE=C2=A0 (1 << 18)

--
Thiago
--000000000000b9063d064cac1baf--