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Commit e460d644 authored by David Howells's avatar David Howells
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MN10300: Use KGDB

parent 67ddb405
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+2 −0
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@@ -3,6 +3,8 @@ config MN10300
	select HAVE_OPROFILE
	select HAVE_OPROFILE
	select HAVE_GENERIC_HARDIRQS
	select HAVE_GENERIC_HARDIRQS
	select GENERIC_HARDIRQS_NO_DEPRECATED
	select GENERIC_HARDIRQS_NO_DEPRECATED
	select HAVE_ARCH_TRACEHOOK
	select HAVE_ARCH_KGDB


config AM33_2
config AM33_2
	def_bool n
	def_bool n
+1 −1
Original line number Original line Diff line number Diff line
@@ -153,4 +153,4 @@ endmenu


config KERNEL_DEBUGGER
config KERNEL_DEBUGGER
	def_bool y
	def_bool y
	depends on GDBSTUB
	depends on GDBSTUB || KGDB
+81 −0
Original line number Original line Diff line number Diff line
/* Kernel debugger for MN10300
 *
 * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public Licence
 * as published by the Free Software Foundation; either version
 * 2 of the Licence, or (at your option) any later version.
 */

#ifndef _ASM_KGDB_H
#define _ASM_KGDB_H

/*
 * BUFMAX defines the maximum number of characters in inbound/outbound
 * buffers at least NUMREGBYTES*2 are needed for register packets
 * Longer buffer is needed to list all threads
 */
#define BUFMAX			1024

/*
 * Note that this register image is in a different order than the register
 * image that Linux produces at interrupt time.
 */
enum regnames {
	GDB_FR_D0		= 0,
	GDB_FR_D1		= 1,
	GDB_FR_D2		= 2,
	GDB_FR_D3		= 3,
	GDB_FR_A0		= 4,
	GDB_FR_A1		= 5,
	GDB_FR_A2		= 6,
	GDB_FR_A3		= 7,

	GDB_FR_SP		= 8,
	GDB_FR_PC		= 9,
	GDB_FR_MDR		= 10,
	GDB_FR_EPSW		= 11,
	GDB_FR_LIR		= 12,
	GDB_FR_LAR		= 13,
	GDB_FR_MDRQ		= 14,

	GDB_FR_E0		= 15,
	GDB_FR_E1		= 16,
	GDB_FR_E2		= 17,
	GDB_FR_E3		= 18,
	GDB_FR_E4		= 19,
	GDB_FR_E5		= 20,
	GDB_FR_E6		= 21,
	GDB_FR_E7		= 22,

	GDB_FR_SSP		= 23,
	GDB_FR_MSP		= 24,
	GDB_FR_USP		= 25,
	GDB_FR_MCRH		= 26,
	GDB_FR_MCRL		= 27,
	GDB_FR_MCVF		= 28,

	GDB_FR_FPCR		= 29,
	GDB_FR_DUMMY0		= 30,
	GDB_FR_DUMMY1		= 31,

	GDB_FR_FS0		= 32,

	GDB_FR_SIZE		= 64,
};

#define GDB_ORIG_D0		41
#define NUMREGBYTES		(GDB_FR_SIZE*4)

static inline void arch_kgdb_breakpoint(void)
{
	asm(".globl __arch_kgdb_breakpoint; __arch_kgdb_breakpoint: break");
}
extern u8 __arch_kgdb_breakpoint;

#define BREAK_INSTR_SIZE	1
#define CACHE_FLUSH_IS_SAFE	1

#endif /* _ASM_KGDB_H */
+2 −1
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@@ -62,8 +62,9 @@
 * An alternate way of dealing with this could be to use the EPSW.S bits to
 * An alternate way of dealing with this could be to use the EPSW.S bits to
 * cache this information for systems with up to four CPUs.
 * cache this information for systems with up to four CPUs.
 */
 */
#define arch_smp_processor_id()	(CPUID)
#if 0
#if 0
#define raw_smp_processor_id()	(CPUID)
#define raw_smp_processor_id()	(arch_smp_processor_id())
#else
#else
#define raw_smp_processor_id()	(current_thread_info()->cpu)
#define raw_smp_processor_id()	(current_thread_info()->cpu)
#endif
#endif
+1 −0
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@@ -25,3 +25,4 @@ obj-$(CONFIG_MN10300_RTC) += rtc.o
obj-$(CONFIG_PROFILE) += profile.o profile-low.o
obj-$(CONFIG_PROFILE) += profile.o profile-low.o
obj-$(CONFIG_MODULES) += module.o
obj-$(CONFIG_MODULES) += module.o
obj-$(CONFIG_KPROBES) += kprobes.o
obj-$(CONFIG_KPROBES) += kprobes.o
obj-$(CONFIG_KGDB) += kgdb.o
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