提交: 48d2ae75f2330d36522b4e39aaee2511970fa9bd - binutils_os216 (git)

GNU Binutils with patches for OS216

Commit MetaInfo

• 修訂: 48d2ae75f2330d36522b4e39aaee2511970fa9bd (tree)
• 時間: 2020-06-16 21:58:32
• 作者: Luis Machado <luis.machado@lina...>
• Commiter: Luis Machado

Log Message

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 and creates a couple new generic aarch64-linux files
in the arch subdirectory. Those will be used later.

gdb/ChangeLog:

YYYY-MM-DD Luis Machado <[e-mail]>

* Makefile.in (ALL_64_TARGET_OBS): Add arch/aarch64-linux.o.
(HFILES_NO_SRCDIR): Add arch/aarch64-linux.h.
* aarch64-linux-nat.c: Include arch/aarch64-linux.h.
* aarch64-linux-tdep.c: Likewise
* arch/aarch64-linux.c: New file.
* arch/aarch64-linux.h: New file.
* configure.tgt (aarch64*-*-linux*): Add arch/aarch64-linux.o.

gdbserver/ChangeLog:

YYYY-MM-DD Luis Machado <[e-mail]>

* linux-aarch64-low.cc: Include arch/aarch64-linux.h.

Change Summary

• modified: gdb/Makefile.in
• modified: gdb/aarch64-linux-nat.c
• modified: gdb/aarch64-linux-tdep.c
• add: gdb/arch/aarch64-linux.c
• add: gdb/arch/aarch64-linux.h
• modified: gdb/configure.tgt
• modified: gdbserver/linux-aarch64-low.cc

差異

--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -679,6 +679,7 @@ ALL_64_TARGET_OBS = \
 	amd64-tdep.o \
 	amd64-windows-tdep.o \
 	arch/aarch64.o \
+	arch/aarch64-linux.o \
 	arch/aarch64-insn.o \
 	arch/amd64.o \
 	ia64-linux-tdep.o \
@@ -1443,6 +1444,7 @@ HFILES_NO_SRCDIR = \
 	xtensa-tdep.h \
 	arch/aarch32.h \
 	arch/aarch64.h \
+	arch/aarch64-linux.h \
 	arch/aarch64-insn.h \
 	arch/arc.h \
 	arch/arm.h \

--- 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-linux.h"
+
 #ifndef TRAP_HWBKPT
 #define TRAP_HWBKPT 0x0004
 #endif

--- a/gdb/aarch64-linux-tdep.c
+++ b/gdb/aarch64-linux-tdep.c
@@ -44,6 +44,8 @@
 #include "record-full.h"
 #include "linux-record.h"
 
+#include "arch/aarch64-linux.h"
+
 /* Signal frame handling.
 
       +------------+  ^

--- /dev/null
+++ b/gdb/arch/aarch64-linux.c
@@ -0,0 +1,20 @@
+/* Common Linux target-dependent functionality for AArch64.
+
+   Copyright (C) 2020 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 <http://www.gnu.org/licenses/>.  */
+
+#include "arch/aarch64-linux.h"

--- /dev/null
+++ b/gdb/arch/aarch64-linux.h
@@ -0,0 +1,28 @@
+/* Common Linux target-dependent definitions for AArch64
+
+   Copyright (C) 2020 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 <http://www.gnu.org/licenses/>.  */
+
+#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 */

--- a/gdb/configure.tgt
+++ b/gdb/configure.tgt
@@ -123,9 +123,9 @@ aarch64*-*-freebsd*)
 
 aarch64*-*-linux*)
 	# Target: AArch64 linux
-	gdb_target_obs="aarch64-linux-tdep.o arch/aarch64.o\
-			arch/arm.o arch/arm-linux.o arch/arm-get-next-pcs.o \
-			arm-tdep.o arm-linux-tdep.o \
+	gdb_target_obs="aarch64-linux-tdep.o arch/aarch64.o \
+			arch/aarch64-linux.o arch/arm.o arch/arm-linux.o \
+			arch/arm-get-next-pcs.o arm-tdep.o arm-linux-tdep.o \
 			glibc-tdep.o linux-tdep.o solib-svr4.o \
 			symfile-mem.o linux-record.o"
 	;;

--- a/gdbserver/linux-aarch64-low.cc
+++ b/gdbserver/linux-aarch64-low.cc
@@ -40,6 +40,7 @@
 
 #include "gdb_proc_service.h"
 #include "arch/aarch64.h"
+#include "arch/aarch64-linux.h"
 #include "linux-aarch32-tdesc.h"
 #include "linux-aarch64-tdesc.h"
 #include "nat/aarch64-sve-linux-ptrace.h"