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author | Ley Foon Tan <lftan@altera.com> | 2015-02-16 19:26:43 +0800 |
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committer | Ley Foon Tan <lftan@altera.com> | 2015-02-16 19:26:43 +0800 |
commit | d16d2be111a61baf3a4696f07bfc7a8e36697cec (patch) | |
tree | 88284b55d67971ccdaa69fabe0b406098b263644 /arch/nios2/include | |
parent | 08c283cc039efc2cf7d64d7e69d8d01de825fc6c (diff) | |
download | op-kernel-dev-d16d2be111a61baf3a4696f07bfc7a8e36697cec.zip op-kernel-dev-d16d2be111a61baf3a4696f07bfc7a8e36697cec.tar.gz |
nios2: add kgdb support
Signed-off-by: Ley Foon Tan <lftan@altera.com>
Diffstat (limited to 'arch/nios2/include')
-rw-r--r-- | arch/nios2/include/asm/kgdb.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/arch/nios2/include/asm/kgdb.h b/arch/nios2/include/asm/kgdb.h new file mode 100644 index 0000000..8fd5e3b --- /dev/null +++ b/arch/nios2/include/asm/kgdb.h @@ -0,0 +1,93 @@ +/* + * Copyright (C) 2015 Altera Corporation + * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch> + * + * Based on the code posted by Kazuyasu on the Altera Forum at: + * http://www.alteraforum.com/forum/showpost.php?p=77003&postcount=20 + * + * 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 2 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 _ASM_NIOS2_KGDB_H +#define _ASM_NIOS2_KGDB_H + +#define CACHE_FLUSH_IS_SAFE 1 +#define BUFMAX 2048 + +enum regnames { + GDB_R0 = 0, + GDB_AT, + GDB_R2, + GDB_R3, + GDB_R4, + GDB_R5, + GDB_R6, + GDB_R7, + GDB_R8, + GDB_R9, + GDB_R10, + GDB_R11, + GDB_R12, + GDB_R13, + GDB_R14, + GDB_R15, + GDB_R16, + GDB_R17, + GDB_R18, + GDB_R19, + GDB_R20, + GDB_R21, + GDB_R22, + GDB_R23, + GDB_ET, + GDB_BT, + GDB_GP, + GDB_SP, + GDB_FP, + GDB_EA, + GDB_BA, + GDB_RA, + GDB_PC, + GDB_STATUS, + GDB_ESTATUS, + GDB_BSTATUS, + GDB_IENABLE, + GDB_IPENDING, + GDB_CPUID, + GDB_CTL6, + GDB_EXCEPTION, + GDB_PTEADDR, + GDB_TLBACC, + GDB_TLBMISC, + GDB_ECCINJ, + GDB_BADADDR, + GDB_CONFIG, + GDB_MPUBASE, + GDB_MPUACC, + /* do not change the last entry or anything below! */ + GDB_NUMREGBYTES /* number of registers */ +}; + +#define GDB_SIZEOF_REG sizeof(u32) +#define DBG_MAX_REG_NUM (49) +#define NUMREGBYTES (DBG_MAX_REG_NUM * sizeof(GDB_SIZEOF_REG)) + +#define BREAK_INSTR_SIZE 4 +static inline void arch_kgdb_breakpoint(void) +{ + __asm__ __volatile__("trap 30\n"); +} + +#endif /* _ASM_NIOS2_KGDB_H */ |