projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b920de1b DH |
1 | /* MN10300 Kernel GDB stub definitions |
| 2 | * | |
| 3 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | |
| 4 | * Written by David Howells (dhowells@redhat.com) | |
| 5 | * - Derived from asm-mips/gdb-stub.h (c) 1995 Andreas Busse | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or | |
| 8 | * modify it under the terms of the GNU General Public Licence | |
| 9 | * as published by the Free Software Foundation; either version | |
| 10 | * 2 of the Licence, or (at your option) any later version. | |
| 11 | */ | |
| 12 | #ifndef _ASM_GDB_STUB_H | |
| 13 | #define _ASM_GDB_STUB_H | |
| 14 | ||
| 15 | #include <asm/exceptions.h> | |
| 16 | ||
| 17 | /* | |
| 18 | * register ID numbers in GDB remote protocol | |
| 19 | */ | |
| 20 | ||
| 21 | #define GDB_REGID_PC 9 | |
| 22 | #define GDB_REGID_FP 7 | |
| 23 | #define GDB_REGID_SP 8 | |
| 24 | ||
| 25 | /* | |
| 26 | * virtual stack layout for the GDB exception handler | |
| 27 | */ | |
| 28 | #define NUMREGS 64 | |
| 29 | ||
| 30 | #define GDB_FR_D0 (0 * 4) | |
| 31 | #define GDB_FR_D1 (1 * 4) | |
| 32 | #define GDB_FR_D2 (2 * 4) | |
| 33 | #define GDB_FR_D3 (3 * 4) | |
| 34 | #define GDB_FR_A0 (4 * 4) | |
| 35 | #define GDB_FR_A1 (5 * 4) | |
| 36 | #define GDB_FR_A2 (6 * 4) | |
| 37 | #define GDB_FR_A3 (7 * 4) | |
| 38 | ||
| 39 | #define GDB_FR_SP (8 * 4) | |
| 40 | #define GDB_FR_PC (9 * 4) | |
| 41 | #define GDB_FR_MDR (10 * 4) | |
| 42 | #define GDB_FR_EPSW (11 * 4) | |
| 43 | #define GDB_FR_LIR (12 * 4) | |
| 44 | #define GDB_FR_LAR (13 * 4) | |
| 45 | #define GDB_FR_MDRQ (14 * 4) | |
| 46 | ||
| 47 | #define GDB_FR_E0 (15 * 4) | |
| 48 | #define GDB_FR_E1 (16 * 4) | |
| 49 | #define GDB_FR_E2 (17 * 4) | |
| 50 | #define GDB_FR_E3 (18 * 4) | |
| 51 | #define GDB_FR_E4 (19 * 4) | |
| 52 | #define GDB_FR_E5 (20 * 4) | |
| 53 | #define GDB_FR_E6 (21 * 4) | |
| 54 | #define GDB_FR_E7 (22 * 4) | |
| 55 | ||
| 56 | #define GDB_FR_SSP (23 * 4) | |
| 57 | #define GDB_FR_MSP (24 * 4) | |
| 58 | #define GDB_FR_USP (25 * 4) | |
| 59 | #define GDB_FR_MCRH (26 * 4) | |
| 60 | #define GDB_FR_MCRL (27 * 4) | |
| 61 | #define GDB_FR_MCVF (28 * 4) | |
| 62 | ||
| 63 | #define GDB_FR_FPCR (29 * 4) | |
| 64 | #define GDB_FR_DUMMY0 (30 * 4) | |
| 65 | #define GDB_FR_DUMMY1 (31 * 4) | |
| 66 | ||
| 67 | #define GDB_FR_FS0 (32 * 4) | |
| 68 | ||
| 69 | #define GDB_FR_SIZE (NUMREGS * 4) | |
| 70 | ||
| 71 | #ifndef __ASSEMBLY__ | |
| 72 | ||
| 73 | /* | |
| 74 | * This is the same as above, but for the high-level | |
| 75 | * part of the GDB stub. | |
| 76 | */ | |
| 77 | ||
| 78 | struct gdb_regs { | |
| 79 | /* saved main processor registers */ | |
| 80 | u32 d0, d1, d2, d3, a0, a1, a2, a3; | |
| 81 | u32 sp, pc, mdr, epsw, lir, lar, mdrq; | |
| 82 | u32 e0, e1, e2, e3, e4, e5, e6, e7; | |
| 83 | u32 ssp, msp, usp, mcrh, mcrl, mcvf; | |
| 84 | ||
| 85 | /* saved floating point registers */ | |
| 86 | u32 fpcr, _dummy0, _dummy1; | |
| 87 | u32 fs0, fs1, fs2, fs3, fs4, fs5, fs6, fs7; | |
| 88 | u32 fs8, fs9, fs10, fs11, fs12, fs13, fs14, fs15; | |
| 89 | u32 fs16, fs17, fs18, fs19, fs20, fs21, fs22, fs23; | |
| 90 | u32 fs24, fs25, fs26, fs27, fs28, fs29, fs30, fs31; | |
| 91 | }; | |
| 92 | ||
| 93 | /* | |
| 94 | * Prototypes | |
| 95 | */ | |
| 96 | extern void show_registers_only(struct pt_regs *regs); | |
| 97 | ||
| 98 | extern asmlinkage void gdbstub_init(void); | |
| 99 | extern asmlinkage void gdbstub_exit(int status); | |
| 100 | extern asmlinkage void gdbstub_io_init(void); | |
| 101 | extern asmlinkage void gdbstub_io_set_baud(unsigned baud); | |
| 102 | extern asmlinkage int gdbstub_io_rx_char(unsigned char *_ch, int nonblock); | |
| 103 | extern asmlinkage void gdbstub_io_tx_char(unsigned char ch); | |
| 104 | extern asmlinkage void gdbstub_io_tx_flush(void); | |
| 105 | ||
| 106 | extern asmlinkage void gdbstub_io_rx_handler(void); | |
| 107 | extern asmlinkage void gdbstub_rx_irq(struct pt_regs *, enum exception_code); | |
| 108 | extern asmlinkage int gdbstub_intercept(struct pt_regs *, enum exception_code); | |
| 109 | extern asmlinkage void gdbstub_exception(struct pt_regs *, enum exception_code); | |
| 110 | extern asmlinkage void __gdbstub_bug_trap(void); | |
| 111 | extern asmlinkage void __gdbstub_pause(void); | |
| 112 | extern asmlinkage void start_kernel(void); | |
| 113 | ||
| 114 | #ifndef CONFIG_MN10300_CACHE_DISABLED | |
| 115 | extern asmlinkage void gdbstub_purge_cache(void); | |
| 116 | #else | |
| 117 | #define gdbstub_purge_cache() do {} while (0) | |
| 118 | #endif | |
| 119 | ||
| 120 | /* Used to prevent crashes in memory access */ | |
| 121 | extern asmlinkage int gdbstub_read_byte(const u8 *, u8 *); | |
| 122 | extern asmlinkage int gdbstub_read_word(const u8 *, u8 *); | |
| 123 | extern asmlinkage int gdbstub_read_dword(const u8 *, u8 *); | |
| 124 | extern asmlinkage int gdbstub_write_byte(u32, u8 *); | |
| 125 | extern asmlinkage int gdbstub_write_word(u32, u8 *); | |
| 126 | extern asmlinkage int gdbstub_write_dword(u32, u8 *); | |
| 127 | ||
| 128 | extern asmlinkage void gdbstub_read_byte_guard(void); | |
| 129 | extern asmlinkage void gdbstub_read_byte_cont(void); | |
| 130 | extern asmlinkage void gdbstub_read_word_guard(void); | |
| 131 | extern asmlinkage void gdbstub_read_word_cont(void); | |
| 132 | extern asmlinkage void gdbstub_read_dword_guard(void); | |
| 133 | extern asmlinkage void gdbstub_read_dword_cont(void); | |
| 134 | extern asmlinkage void gdbstub_write_byte_guard(void); | |
| 135 | extern asmlinkage void gdbstub_write_byte_cont(void); | |
| 136 | extern asmlinkage void gdbstub_write_word_guard(void); | |
| 137 | extern asmlinkage void gdbstub_write_word_cont(void); | |
| 138 | extern asmlinkage void gdbstub_write_dword_guard(void); | |
| 139 | extern asmlinkage void gdbstub_write_dword_cont(void); | |
| 140 | ||
| 141 | extern u8 gdbstub_rx_buffer[PAGE_SIZE]; | |
| 142 | extern u32 gdbstub_rx_inp; | |
| 143 | extern u32 gdbstub_rx_outp; | |
| 144 | extern u8 gdbstub_rx_overflow; | |
| 145 | extern u8 gdbstub_busy; | |
| 146 | extern u8 gdbstub_rx_unget; | |
| 147 | ||
| 148 | #ifdef CONFIG_GDBSTUB_DEBUGGING | |
| 149 | extern void gdbstub_printk(const char *fmt, ...) | |
| 150 | __attribute__((format(printf, 1, 2))); | |
| 151 | #else | |
| 152 | static inline __attribute__((format(printf, 1, 2))) | |
| 153 | void gdbstub_printk(const char *fmt, ...) | |
| 154 | { | |
| 155 | } | |
| 156 | #endif | |
| 157 | ||
| 158 | #ifdef CONFIG_GDBSTUB_DEBUG_ENTRY | |
| 159 | #define gdbstub_entry(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__) | |
| 160 | #else | |
| 161 | #define gdbstub_entry(FMT, ...) ({ 0; }) | |
| 162 | #endif | |
| 163 | ||
| 164 | #ifdef CONFIG_GDBSTUB_DEBUG_PROTOCOL | |
| 165 | #define gdbstub_proto(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__) | |
| 166 | #else | |
| 167 | #define gdbstub_proto(FMT, ...) ({ 0; }) | |
| 168 | #endif | |
| 169 | ||
| 170 | #ifdef CONFIG_GDBSTUB_DEBUG_IO | |
| 171 | #define gdbstub_io(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__) | |
| 172 | #else | |
| 173 | #define gdbstub_io(FMT, ...) ({ 0; }) | |
| 174 | #endif | |
| 175 | ||
| 176 | #ifdef CONFIG_GDBSTUB_DEBUG_BREAKPOINT | |
| 177 | #define gdbstub_bkpt(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__) | |
| 178 | #else | |
| 179 | #define gdbstub_bkpt(FMT, ...) ({ 0; }) | |
| 180 | #endif | |
| 181 | ||
| 182 | #endif /* !__ASSEMBLY__ */ | |
| 183 | #endif /* _ASM_GDB_STUB_H */ |