diff options
Diffstat (limited to 'sys/arm64/include/gdb_machdep.h')
-rw-r--r-- | sys/arm64/include/gdb_machdep.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/sys/arm64/include/gdb_machdep.h b/sys/arm64/include/gdb_machdep.h new file mode 100644 index 000000000000..755c5d1657c0 --- /dev/null +++ b/sys/arm64/include/gdb_machdep.h @@ -0,0 +1,81 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 2020 The FreeBSD Foundation + * + * This software was developed by Mitchell Horne under sponsorship from + * the FreeBSD Foundation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _MACHINE_GDB_MACHDEP_H_ +#define _MACHINE_GDB_MACHDEP_H_ + +#define GDB_BUFSZ 4096 +#define GDB_NREGS 68 +#define GDB_REG_X0 0 +#define GDB_REG_X29 29 +#define GDB_REG_LR 30 +#define GDB_REG_SP 31 +#define GDB_REG_PC 32 +#define GDB_REG_CSPR 33 +#define GDB_REG_V0 34 +#define GDB_REG_V31 65 +#define GDB_REG_FPSR 66 +#define GDB_REG_FPCR 67 +_Static_assert(GDB_BUFSZ >= (GDB_NREGS * 16), "buffer fits 'g' regs"); + +static __inline size_t +gdb_cpu_regsz(int regnum) +{ + if (regnum == GDB_REG_CSPR || regnum == GDB_REG_FPSR || + regnum == GDB_REG_FPCR) + return (4); + else if (regnum >= GDB_REG_V0 && regnum <= GDB_REG_V31) + return (16); + + return (8); +} + +static __inline int +gdb_cpu_query(void) +{ + return (0); +} + +static __inline void * +gdb_begin_write(void) +{ + return (NULL); +} + +static __inline void +gdb_end_write(void *arg __unused) +{ +} + +void *gdb_cpu_getreg(int, size_t *); +void gdb_cpu_setreg(int, void *); +int gdb_cpu_signal(int, int); + +#endif /* !_MACHINE_GDB_MACHDEP_H_ */ |