| /* MN10300 Kernel GDB stub definitions |
| * |
| * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. |
| * Written by David Howells (dhowells@redhat.com) |
| * - Derived from asm-mips/gdb-stub.h (c) 1995 Andreas Busse |
| * |
| * 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_GDB_STUB_H |
| #define _ASM_GDB_STUB_H |
| |
| #include <asm/exceptions.h> |
| |
| /* |
| * register ID numbers in GDB remote protocol |
| */ |
| |
| #define GDB_REGID_PC 9 |
| #define GDB_REGID_FP 7 |
| #define GDB_REGID_SP 8 |
| |
| /* |
| * virtual stack layout for the GDB exception handler |
| */ |
| #define NUMREGS 64 |
| |
| #define GDB_FR_D0 (0 * 4) |
| #define GDB_FR_D1 (1 * 4) |
| #define GDB_FR_D2 (2 * 4) |
| #define GDB_FR_D3 (3 * 4) |
| #define GDB_FR_A0 (4 * 4) |
| #define GDB_FR_A1 (5 * 4) |
| #define GDB_FR_A2 (6 * 4) |
| #define GDB_FR_A3 (7 * 4) |
| |
| #define GDB_FR_SP (8 * 4) |
| #define GDB_FR_PC (9 * 4) |
| #define GDB_FR_MDR (10 * 4) |
| #define GDB_FR_EPSW (11 * 4) |
| #define GDB_FR_LIR (12 * 4) |
| #define GDB_FR_LAR (13 * 4) |
| #define GDB_FR_MDRQ (14 * 4) |
| |
| #define GDB_FR_E0 (15 * 4) |
| #define GDB_FR_E1 (16 * 4) |
| #define GDB_FR_E2 (17 * 4) |
| #define GDB_FR_E3 (18 * 4) |
| #define GDB_FR_E4 (19 * 4) |
| #define GDB_FR_E5 (20 * 4) |
| #define GDB_FR_E6 (21 * 4) |
| #define GDB_FR_E7 (22 * 4) |
| |
| #define GDB_FR_SSP (23 * 4) |
| #define GDB_FR_MSP (24 * 4) |
| #define GDB_FR_USP (25 * 4) |
| #define GDB_FR_MCRH (26 * 4) |
| #define GDB_FR_MCRL (27 * 4) |
| #define GDB_FR_MCVF (28 * 4) |
| |
| #define GDB_FR_FPCR (29 * 4) |
| #define GDB_FR_DUMMY0 (30 * 4) |
| #define GDB_FR_DUMMY1 (31 * 4) |
| |
| #define GDB_FR_FS0 (32 * 4) |
| |
| #define GDB_FR_SIZE (NUMREGS * 4) |
| |
| #ifndef __ASSEMBLY__ |
| |
| /* |
| * This is the same as above, but for the high-level |
| * part of the GDB stub. |
| */ |
| |
| struct gdb_regs { |
| /* saved main processor registers */ |
| u32 d0, d1, d2, d3, a0, a1, a2, a3; |
| u32 sp, pc, mdr, epsw, lir, lar, mdrq; |
| u32 e0, e1, e2, e3, e4, e5, e6, e7; |
| u32 ssp, msp, usp, mcrh, mcrl, mcvf; |
| |
| /* saved floating point registers */ |
| u32 fpcr, _dummy0, _dummy1; |
| u32 fs0, fs1, fs2, fs3, fs4, fs5, fs6, fs7; |
| u32 fs8, fs9, fs10, fs11, fs12, fs13, fs14, fs15; |
| u32 fs16, fs17, fs18, fs19, fs20, fs21, fs22, fs23; |
| u32 fs24, fs25, fs26, fs27, fs28, fs29, fs30, fs31; |
| }; |
| |
| /* |
| * Prototypes |
| */ |
| extern void show_registers_only(struct pt_regs *regs); |
| |
| extern asmlinkage void gdbstub_init(void); |
| extern asmlinkage void gdbstub_exit(int status); |
| extern asmlinkage void gdbstub_io_init(void); |
| extern asmlinkage void gdbstub_io_set_baud(unsigned baud); |
| extern asmlinkage int gdbstub_io_rx_char(unsigned char *_ch, int nonblock); |
| extern asmlinkage void gdbstub_io_tx_char(unsigned char ch); |
| extern asmlinkage void gdbstub_io_tx_flush(void); |
| |
| extern asmlinkage void gdbstub_io_rx_handler(void); |
| extern asmlinkage void gdbstub_rx_irq(struct pt_regs *, enum exception_code); |
| extern asmlinkage int gdbstub_intercept(struct pt_regs *, enum exception_code); |
| extern asmlinkage void gdbstub_exception(struct pt_regs *, enum exception_code); |
| extern asmlinkage void __gdbstub_bug_trap(void); |
| extern asmlinkage void __gdbstub_pause(void); |
| |
| #ifdef CONFIG_MN10300_CACHE_ENABLED |
| extern asmlinkage void gdbstub_purge_cache(void); |
| #else |
| #define gdbstub_purge_cache() do {} while (0) |
| #endif |
| |
| /* Used to prevent crashes in memory access */ |
| extern asmlinkage int gdbstub_read_byte(const u8 *, u8 *); |
| extern asmlinkage int gdbstub_read_word(const u8 *, u8 *); |
| extern asmlinkage int gdbstub_read_dword(const u8 *, u8 *); |
| extern asmlinkage int gdbstub_write_byte(u32, u8 *); |
| extern asmlinkage int gdbstub_write_word(u32, u8 *); |
| extern asmlinkage int gdbstub_write_dword(u32, u8 *); |
| |
| extern asmlinkage void gdbstub_read_byte_guard(void); |
| extern asmlinkage void gdbstub_read_byte_cont(void); |
| extern asmlinkage void gdbstub_read_word_guard(void); |
| extern asmlinkage void gdbstub_read_word_cont(void); |
| extern asmlinkage void gdbstub_read_dword_guard(void); |
| extern asmlinkage void gdbstub_read_dword_cont(void); |
| extern asmlinkage void gdbstub_write_byte_guard(void); |
| extern asmlinkage void gdbstub_write_byte_cont(void); |
| extern asmlinkage void gdbstub_write_word_guard(void); |
| extern asmlinkage void gdbstub_write_word_cont(void); |
| extern asmlinkage void gdbstub_write_dword_guard(void); |
| extern asmlinkage void gdbstub_write_dword_cont(void); |
| |
| extern u8 gdbstub_rx_buffer[PAGE_SIZE]; |
| extern u32 gdbstub_rx_inp; |
| extern u32 gdbstub_rx_outp; |
| extern u8 gdbstub_rx_overflow; |
| extern u8 gdbstub_busy; |
| extern u8 gdbstub_rx_unget; |
| |
| #ifdef CONFIG_GDBSTUB_DEBUGGING |
| extern void gdbstub_printk(const char *fmt, ...) |
| __attribute__((format(printf, 1, 2))); |
| #else |
| static inline __attribute__((format(printf, 1, 2))) |
| void gdbstub_printk(const char *fmt, ...) |
| { |
| } |
| #endif |
| |
| #ifdef CONFIG_GDBSTUB_DEBUG_ENTRY |
| #define gdbstub_entry(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__) |
| #else |
| #define gdbstub_entry(FMT, ...) no_printk(FMT, ##__VA_ARGS__) |
| #endif |
| |
| #ifdef CONFIG_GDBSTUB_DEBUG_PROTOCOL |
| #define gdbstub_proto(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__) |
| #else |
| #define gdbstub_proto(FMT, ...) no_printk(FMT, ##__VA_ARGS__) |
| #endif |
| |
| #ifdef CONFIG_GDBSTUB_DEBUG_IO |
| #define gdbstub_io(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__) |
| #else |
| #define gdbstub_io(FMT, ...) no_printk(FMT, ##__VA_ARGS__) |
| #endif |
| |
| #ifdef CONFIG_GDBSTUB_DEBUG_BREAKPOINT |
| #define gdbstub_bkpt(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__) |
| #else |
| #define gdbstub_bkpt(FMT, ...) no_printk(FMT, ##__VA_ARGS__) |
| #endif |
| |
| #endif /* !__ASSEMBLY__ */ |
| #endif /* _ASM_GDB_STUB_H */ |