From: Luis Machado via Gdb-patches <gdb-patches@sourceware.org>
To: gdb-patches@sourceware.org
Cc: david.spickett@linaro.org
Subject: Re: [PATCH v4 00/25] Memory Tagging Support + AArch64 Linux implementation
Date: Fri, 15 Jan 2021 13:02:04 -0300 [thread overview]
Message-ID: <3ced805e-edef-922a-4181-b15f75e0e59a@linaro.org> (raw)
In-Reply-To: <20201230153916.1586725-1-luis.machado@linaro.org>
Ping?
On 12/30/20 12:38 PM, Luis Machado wrote:
> Memory tagging improves memory safety by tagging various parts of memory and
> raising exceptions when the allocation tag (the one associated with a range of
> memory addresses) does not match the logical tag contained in a pointer that is
> used to access the memory area.
>
> We already have an implementation of such a mechanism for sparc64 (ADI), but
> it is target-specific and not exposed to the rest of GDB. This series aims to
> make the infrastructure available to other targets that may wish to support
> their specific memory tagging approaches. For AArch64 Linux this is called
> MTE (Memory Tagging Extensions).
>
> The series is split into a set that deals with generic changes to GDB's
> infrastructure (target methods, gdbarch hooks and remote packets), a set that
> implements support for AArch64 Linux and one last set that implements new
> commands, updates the documentation and adds tests.
>
> The goal is to make it so the architecture independent parts of GDB don't
> need to interpret tag formats, given the formats are likely different
> for each architecture. For this reason, GDB will handle tags as a sequence of
> bytes and will not assume a particular format.
>
> The architecture-specific code can handle the sequence of bytes appropriately.
>
> Luis Machado (25):
> New target methods for memory tagging support
> New gdbarch memory tagging hooks
> Add GDB-side remote target support for memory tagging
> Unit testing for GDB-side remote memory tagging handling
> GDBserver remote packet support for memory tagging
> Unit tests for gdbserver memory tagging remote packets
> Documentation for memory tagging remote packets
> AArch64: Add MTE CPU feature check support
> AArch64: Add target description/feature for MTE registers
> AArch64: Add MTE register set support for GDB and gdbserver
> AArch64: Add MTE ptrace requests
> AArch64: Implement memory tagging target methods for AArch64
> Convert char array to std::string in linux_find_memory_regions_full
> Refactor parsing of /proc/<pid>/smaps
> AArch64: Implement the memory tagging gdbarch hooks
> AArch64: Add unit testing for logical tag set/get operations
> AArch64: Report tag violation error information
> AArch64: Add gdbserver MTE support
> AArch64: Add MTE register set support for core files
> New memory-tag commands
> Documentation for the new mtag commands
> Extend "x" and "print" commands to support memory tagging
> Document new "x" and "print" memory tagging extensions
> Add NEWS entry.
> Add memory tagging testcases
>
> gdb/Makefile.in | 3 +
> gdb/NEWS | 36 +-
> gdb/aarch64-linux-nat.c | 127 ++++++-
> gdb/aarch64-linux-tdep.c | 336 +++++++++++++++++-
> gdb/aarch64-linux-tdep.h | 3 +
> gdb/aarch64-tdep.c | 40 ++-
> gdb/aarch64-tdep.h | 12 +-
> gdb/arch-utils.c | 50 +++
> gdb/arch-utils.h | 23 ++
> gdb/arch/aarch64-mte-linux.c | 73 ++++
> gdb/arch/aarch64-mte-linux.h | 75 ++++
> gdb/arch/aarch64.c | 7 +-
> gdb/arch/aarch64.h | 7 +-
> gdb/configure.nat | 3 +-
> gdb/configure.tgt | 1 +
> gdb/doc/gdb.texinfo | 233 +++++++++++-
> gdb/features/Makefile | 1 +
> gdb/features/aarch64-mte.c | 14 +
> gdb/features/aarch64-mte.xml | 11 +
> gdb/gdbarch.c | 137 ++++++++
> gdb/gdbarch.h | 53 +++
> gdb/gdbarch.sh | 36 ++
> gdb/linux-tdep.c | 378 +++++++++++++-------
> gdb/linux-tdep.h | 4 +
> gdb/nat/aarch64-mte-linux-ptrace.c | 200 +++++++++++
> gdb/nat/aarch64-mte-linux-ptrace.h | 50 +++
> gdb/printcmd.c | 468 ++++++++++++++++++++++++-
> gdb/remote.c | 227 ++++++++++++
> gdb/target-debug.h | 24 ++
> gdb/target-delegates.c | 95 +++++
> gdb/target.h | 41 +++
> gdb/testsuite/gdb.arch/aarch64-mte.c | 107 ++++++
> gdb/testsuite/gdb.arch/aarch64-mte.exp | 369 +++++++++++++++++++
> gdb/testsuite/gdb.base/memtag.c | 22 ++
> gdb/testsuite/gdb.base/memtag.exp | 66 ++++
> gdb/testsuite/lib/gdb.exp | 16 +
> gdb/valprint.h | 1 +
> gdbserver/Makefile.in | 1 +
> gdbserver/configure.srv | 2 +
> gdbserver/linux-aarch64-ipa.cc | 8 +-
> gdbserver/linux-aarch64-low.cc | 97 ++++-
> gdbserver/linux-aarch64-tdesc.cc | 10 +-
> gdbserver/linux-aarch64-tdesc.h | 3 +-
> gdbserver/remote-utils.cc | 43 ++-
> gdbserver/remote-utils.h | 7 +-
> gdbserver/server.cc | 219 ++++++++++++
> gdbserver/server.h | 3 +
> gdbserver/target.cc | 20 ++
> gdbserver/target.h | 21 ++
> gdbsupport/common-utils.cc | 49 +++
> gdbsupport/common-utils.h | 15 +
> gdbsupport/rsp-low.cc | 49 ---
> gdbsupport/rsp-low.h | 19 -
> include/elf/common.h | 3 +
> 54 files changed, 3654 insertions(+), 264 deletions(-)
> create mode 100644 gdb/arch/aarch64-mte-linux.c
> create mode 100644 gdb/arch/aarch64-mte-linux.h
> create mode 100644 gdb/features/aarch64-mte.c
> create mode 100644 gdb/features/aarch64-mte.xml
> create mode 100644 gdb/nat/aarch64-mte-linux-ptrace.c
> create mode 100644 gdb/nat/aarch64-mte-linux-ptrace.h
> create mode 100644 gdb/testsuite/gdb.arch/aarch64-mte.c
> create mode 100644 gdb/testsuite/gdb.arch/aarch64-mte.exp
> create mode 100644 gdb/testsuite/gdb.base/memtag.c
> create mode 100644 gdb/testsuite/gdb.base/memtag.exp
>
next prev parent reply other threads:[~2021-01-15 16:02 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-30 15:38 Luis Machado via Gdb-patches
2020-12-30 15:38 ` [PATCH v4 01/25] New target methods for memory tagging support Luis Machado via Gdb-patches
2020-12-30 15:38 ` [PATCH v4 02/25] New gdbarch memory tagging hooks Luis Machado via Gdb-patches
2020-12-30 15:38 ` [PATCH v4 03/25] Add GDB-side remote target support for memory tagging Luis Machado via Gdb-patches
2020-12-30 15:38 ` [PATCH v4 04/25] Unit testing for GDB-side remote memory tagging handling Luis Machado via Gdb-patches
2020-12-30 15:38 ` [PATCH v4 05/25] GDBserver remote packet support for memory tagging Luis Machado via Gdb-patches
2020-12-30 15:38 ` [PATCH v4 06/25] Unit tests for gdbserver memory tagging remote packets Luis Machado via Gdb-patches
2020-12-30 15:38 ` [PATCH v4 07/25] Documentation for " Luis Machado via Gdb-patches
2020-12-30 20:41 ` Eli Zaretskii via Gdb-patches
2020-12-30 15:38 ` [PATCH v4 08/25] AArch64: Add MTE CPU feature check support Luis Machado via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 09/25] AArch64: Add target description/feature for MTE registers Luis Machado via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 10/25] AArch64: Add MTE register set support for GDB and gdbserver Luis Machado via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 11/25] AArch64: Add MTE ptrace requests Luis Machado via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 12/25] AArch64: Implement memory tagging target methods for AArch64 Luis Machado via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 13/25] Convert char array to std::string in linux_find_memory_regions_full Luis Machado via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 14/25] Refactor parsing of /proc/<pid>/smaps Luis Machado via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 15/25] AArch64: Implement the memory tagging gdbarch hooks Luis Machado via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 16/25] AArch64: Add unit testing for logical tag set/get operations Luis Machado via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 17/25] AArch64: Report tag violation error information Luis Machado via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 18/25] AArch64: Add gdbserver MTE support Luis Machado via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 19/25] AArch64: Add MTE register set support for core files Luis Machado via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 20/25] New memory-tag commands Luis Machado via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 21/25] Documentation for the new mtag commands Luis Machado via Gdb-patches
2020-12-30 20:43 ` Eli Zaretskii via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 22/25] Extend "x" and "print" commands to support memory tagging Luis Machado via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 23/25] Document new "x" and "print" memory tagging extensions Luis Machado via Gdb-patches
2020-12-30 20:44 ` Eli Zaretskii via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 24/25] Add NEWS entry Luis Machado via Gdb-patches
2020-12-30 20:45 ` Eli Zaretskii via Gdb-patches
2020-12-30 15:39 ` [PATCH v4 25/25] Add memory tagging testcases Luis Machado via Gdb-patches
2021-01-15 16:02 ` Luis Machado via Gdb-patches [this message]
2021-01-26 13:03 ` [PING] [PATCH v4 00/25] Memory Tagging Support + AArch64 Linux implementation Luis Machado via Gdb-patches
2021-01-26 16:26 ` Simon Marchi via Gdb-patches
2021-01-26 16:36 ` Luis Machado via Gdb-patches
2021-01-26 16:49 ` Simon Marchi via Gdb-patches
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