69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* sw64 KGDB support
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*
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* Based on arch/arm64/include/kgdb.h
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*
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* Copyright (C) Xia Bin
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* Author: Xia Bin
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _ASM_SW64_KGDB_H
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#define _ASM_SW64_KGDB_H
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#include <asm/ptrace.h>
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#include <linux/sched.h>
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#ifndef __ASSEMBLY__
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#define GDB_ADJUSTS_BREAK_OFFSET
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#define BREAK_INSTR_SIZE 4
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#define CACHE_FLUSH_IS_SAFE 0
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static inline void arch_kgdb_breakpoint(void)
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{
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asm __volatile__ ("sys_call/b 0x80");
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}
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void sw64_task_to_gdb_regs(struct task_struct *task, unsigned long *regs);
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extern void kgdb_handle_bus_error(void);
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extern int kgdb_fault_expected;
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extern unsigned long get_reg(struct task_struct *task, unsigned long regno);
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#endif /* !__ASSEMBLY__ */
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/*
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* general purpose registers size in bytes.
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*/
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#define DBG_MAX_REG_NUM (67)
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/*
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* Size of I/O buffer for gdb packet.
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* considering to hold all register contents, size is set
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*/
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#define BUFMAX 4096
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/*
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* Number of bytes required for gdb_regs buffer.
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* _GP_REGS: 8 bytes, _FP_REGS: 16 bytes and _EXTRA_REGS: 4 bytes each
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* GDB fails to connect for size beyond this with error
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* "'g' packet reply is too long"
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*/
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#define NUMREGBYTES (DBG_MAX_REG_NUM * 8)
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#endif /* _ASM_SW64_KGDB_H */
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