From 0424512519142571509c67e83cd9dc2ed51d2dec Mon Sep 17 00:00:00 2001 From: Luis Machado Date: Mon, 15 Jun 2020 13:39:30 -0300 Subject: AArch64: Add MTE CPU feature check support This patch is a preparation for the next patches implementing MTE. It just adds a HWCAP2 constant for MTE, creates a new generic arch/aarch64-mte-linux.h file and includes that file in the source files that will use it. gdb/ChangeLog: 2021-03-24 Luis Machado * Makefile.in (HFILES_NO_SRCDIR): Add arch/aarch64-mte-linux.h. * aarch64-linux-nat.c: Include arch/aarch64-mte-linux.h. * aarch64-linux-tdep.c: Likewise * arch/aarch64-mte-linux.h: New file. gdbserver/ChangeLog: 2021-03-24 Luis Machado * linux-aarch64-low.cc: Include arch/aarch64-mte-linux.h. --- gdb/ChangeLog | 7 +++++++ gdb/Makefile.in | 1 + gdb/aarch64-linux-nat.c | 2 ++ gdb/aarch64-linux-tdep.c | 2 ++ gdb/arch/aarch64-mte-linux.h | 28 ++++++++++++++++++++++++++++ 5 files changed, 40 insertions(+) create mode 100644 gdb/arch/aarch64-mte-linux.h (limited to 'gdb') diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 0ea440d..a7d8902 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,12 @@ 2021-03-24 Luis Machado + * Makefile.in (HFILES_NO_SRCDIR): Add arch/aarch64-mte-linux.h. + * aarch64-linux-nat.c: Include arch/aarch64-mte-linux.h. + * aarch64-linux-tdep.c: Likewise + * arch/aarch64-mte-linux.h: New file. + +2021-03-24 Luis Machado + * remote: Include gdbsupport/selftest.h. (test_memory_tagging_functions): New function. (_initialize_remote): Register test_memory_tagging_functions. diff --git a/gdb/Makefile.in b/gdb/Makefile.in index a6ca5a5..49202d4 100644 --- a/gdb/Makefile.in +++ b/gdb/Makefile.in @@ -1474,6 +1474,7 @@ HFILES_NO_SRCDIR = \ arch/aarch32.h \ arch/aarch64.h \ arch/aarch64-insn.h \ + arch/aarch64-mte-linux.h \ arch/arc.h \ arch/arm.h \ arch/i386.h \ diff --git a/gdb/aarch64-linux-nat.c b/gdb/aarch64-linux-nat.c index 0cae91b..424e616 100644 --- a/gdb/aarch64-linux-nat.c +++ b/gdb/aarch64-linux-nat.c @@ -50,6 +50,8 @@ #include "gdb_proc_service.h" #include "arch-utils.h" +#include "arch/aarch64-mte-linux.h" + #ifndef TRAP_HWBKPT #define TRAP_HWBKPT 0x0004 #endif diff --git a/gdb/aarch64-linux-tdep.c b/gdb/aarch64-linux-tdep.c index d8476c9..a6044ea 100644 --- a/gdb/aarch64-linux-tdep.c +++ b/gdb/aarch64-linux-tdep.c @@ -45,6 +45,8 @@ #include "record-full.h" #include "linux-record.h" +#include "arch/aarch64-mte-linux.h" + /* Signal frame handling. +------------+ ^ diff --git a/gdb/arch/aarch64-mte-linux.h b/gdb/arch/aarch64-mte-linux.h new file mode 100644 index 0000000..629ed9c --- /dev/null +++ b/gdb/arch/aarch64-mte-linux.h @@ -0,0 +1,28 @@ +/* Common Linux target-dependent definitions for AArch64 MTE + + Copyright (C) 2021 Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#ifndef ARCH_AARCH64_LINUX_H +#define ARCH_AARCH64_LINUX_H + +/* Feature check for Memory Tagging Extension. */ +#ifndef HWCAP2_MTE +#define HWCAP2_MTE (1 << 18) +#endif + +#endif /* ARCH_AARCH64_LINUX_H */ -- cgit v1.1