projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b920de1b DH |
1 | ############################################################################### |
| 2 | # | |
| 3 | # MN10300 Low-level gdbstub routines | |
| 4 | # | |
| 5 | # Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | |
| 6 | # Written by David Howells (dhowells@redhat.com) | |
| 7 | # | |
| 8 | # This program is free software; you can redistribute it and/or | |
| 9 | # modify it under the terms of the GNU General Public Licence | |
| 10 | # as published by the Free Software Foundation; either version | |
| 11 | # 2 of the Licence, or (at your option) any later version. | |
| 12 | # | |
| 13 | ############################################################################### | |
| 14 | #include <linux/sys.h> | |
| 15 | #include <linux/linkage.h> | |
| 16 | #include <asm/smp.h> | |
| 17 | #include <asm/cache.h> | |
| 18 | #include <asm/cpu-regs.h> | |
| 19 | #include <asm/exceptions.h> | |
| 20 | #include <asm/frame.inc> | |
| 21 | #include <asm/serial-regs.h> | |
| 22 | ||
| 23 | .text | |
| 24 | ||
| 25 | ############################################################################### | |
| 26 | # | |
| 27 | # GDB stub read memory with guard | |
| 28 | # - D0 holds the memory address to read | |
| 29 | # - D1 holds the address to store the byte into | |
| 30 | # | |
| 31 | ############################################################################### | |
| 32 | .globl gdbstub_read_byte_guard | |
| 33 | .globl gdbstub_read_byte_cont | |
| 34 | ENTRY(gdbstub_read_byte) | |
| 35 | mov d0,a0 | |
| 36 | mov d1,a1 | |
| 37 | clr d0 | |
| 38 | gdbstub_read_byte_guard: | |
| 39 | movbu (a0),d1 | |
| 40 | gdbstub_read_byte_cont: | |
| 41 | movbu d1,(a1) | |
| 42 | ret [],0 | |
| 43 | ||
| 44 | .globl gdbstub_read_word_guard | |
| 45 | .globl gdbstub_read_word_cont | |
| 46 | ENTRY(gdbstub_read_word) | |
| 47 | mov d0,a0 | |
| 48 | mov d1,a1 | |
| 49 | clr d0 | |
| 50 | gdbstub_read_word_guard: | |
| 51 | movhu (a0),d1 | |
| 52 | gdbstub_read_word_cont: | |
| 53 | movhu d1,(a1) | |
| 54 | ret [],0 | |
| 55 | ||
| 56 | .globl gdbstub_read_dword_guard | |
| 57 | .globl gdbstub_read_dword_cont | |
| 58 | ENTRY(gdbstub_read_dword) | |
| 59 | mov d0,a0 | |
| 60 | mov d1,a1 | |
| 61 | clr d0 | |
| 62 | gdbstub_read_dword_guard: | |
| 63 | mov (a0),d1 | |
| 64 | gdbstub_read_dword_cont: | |
| 65 | mov d1,(a1) | |
| 66 | ret [],0 | |
| 67 | ||
| 68 | ############################################################################### | |
| 69 | # | |
| 70 | # GDB stub write memory with guard | |
| 71 | # - D0 holds the byte to store | |
| 72 | # - D1 holds the memory address to write | |
| 73 | # | |
| 74 | ############################################################################### | |
| 75 | .globl gdbstub_write_byte_guard | |
| 76 | .globl gdbstub_write_byte_cont | |
| 77 | ENTRY(gdbstub_write_byte) | |
| 78 | mov d0,a0 | |
| 79 | mov d1,a1 | |
| 80 | clr d0 | |
| 81 | gdbstub_write_byte_guard: | |
| 82 | movbu a0,(a1) | |
| 83 | gdbstub_write_byte_cont: | |
| 84 | ret [],0 | |
| 85 | ||
| 86 | .globl gdbstub_write_word_guard | |
| 87 | .globl gdbstub_write_word_cont | |
| 88 | ENTRY(gdbstub_write_word) | |
| 89 | mov d0,a0 | |
| 90 | mov d1,a1 | |
| 91 | clr d0 | |
| 92 | gdbstub_write_word_guard: | |
| 93 | movhu a0,(a1) | |
| 94 | gdbstub_write_word_cont: | |
| 95 | ret [],0 | |
| 96 | ||
| 97 | .globl gdbstub_write_dword_guard | |
| 98 | .globl gdbstub_write_dword_cont | |
| 99 | ENTRY(gdbstub_write_dword) | |
| 100 | mov d0,a0 | |
| 101 | mov d1,a1 | |
| 102 | clr d0 | |
| 103 | gdbstub_write_dword_guard: | |
| 104 | mov a0,(a1) | |
| 105 | gdbstub_write_dword_cont: | |
| 106 | ret [],0 | |
| 107 | ||
| 108 | ############################################################################### | |
| 109 | # | |
| 110 | # GDB stub BUG() trap | |
| 111 | # | |
| 112 | ############################################################################### | |
| 113 | ENTRY(__gdbstub_bug_trap) | |
| 114 | .byte 0xF7,0xF7 # don't use 0xFF as the JTAG unit preempts that | |
| 115 | ret [],0 |