programs/winedbg/be_alpha.c

   1 /*
   2  * Debugger Alpha specific functions
   3  *
   4  * Copyright 2004 Vincent Béron
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "debugger.h"
  22
  23 #if defined(__ALPHA__)
  24
  25 static unsigned be_alpha_get_addr(HANDLE hThread, const CONTEXT* ctx,
  26                                  enum be_cpu_addr bca, ADDRESS* addr)
  27 {
  28     dbg_printf("not done\n");
  29     return FALSE;
  30 }
  31
  32 static void be_alpha_single_step(CONTEXT* ctx, unsigned enable)
  33 {
  34     dbg_printf("not done\n");
  35 }
  36
  37 static void be_alpha_print_context(HANDLE hThread, const CONTEXT* ctx)
  38 {
  39     dbg_printf("Context printing for Alpha not done yet\n");
  40 }
  41
  42 static void be_alpha_print_segment_info(HANDLE hThread, const CONTEXT* ctx)
  43 {
  44 }
  45
  46 static struct dbg_internal_var be_alpha_ctx[] =
  47 {
  48     {0,                 NULL,           0,                                      dbg_itype_none}
  49 };
  50
  51 static const struct dbg_internal_var* be_alpha_init_registers(CONTEXT* ctx)
  52 {
  53     dbg_printf("not done\n");
  54     return be_alpha_ctx;
  55 }
  56
  57 static unsigned be_alpha_is_step_over_insn(void* insn)
  58 {
  59     dbg_printf("not done\n");
  60     return FALSE;
  61 }
  62
  63 static unsigned be_alpha_is_function_return(void* insn)
  64 {
  65     dbg_printf("not done\n");
  66     return FALSE;
  67 }
  68
  69 static unsigned be_alpha_is_break_insn(void* insn)
  70 {
  71     dbg_printf("not done\n");
  72     return FALSE;
  73 }
  74
  75 static unsigned be_alpha_is_func_call(void* insn, void** insn_callee)
  76 {
  77     return FALSE;
  78 }
  79
  80 static void be_alpha_disasm_one_insn(ADDRESS* addr, int display)
  81 {
  82     dbg_printf("Disasm NIY\n");
  83 }
  84
  85 static unsigned be_alpha_insert_Xpoint(HANDLE hProcess, CONTEXT* ctx,
  86                                      enum be_xpoint_type type, void* addr,
  87                                      unsigned long* val, unsigned size)
  88 {
  89     unsigned long       xbp;
  90     unsigned long       sz;
  91
  92     switch (type)
  93     {
  94     case be_xpoint_break:
  95         if (!size) return 0;
  96         if (!ReadProcessMemory(hProcess, addr, val, 4, &sz) || sz != 4) return 0;
  97         xbp = 0x7d821008; /* 7d 82 10 08 ... in big endian */
  98         if (!WriteProcessMemory(hProcess, addr, &xbp, 4, &sz) || sz != 4) return 0;
  99         break;
 100     default:
 101         dbg_printf("Unknown/unsupported bp type %c\n", type);
 102         return 0;
 103     }
 104     return 1;
 105 }
 106
 107 static unsigned be_alpha_remove_Xpoint(HANDLE hProcess, CONTEXT* ctx,
 108                                      enum be_xpoint_type type, void* addr,
 109                                      unsigned long val, unsigned size)
 110 {
 111     dbg_printf("not done\n");
 112     return FALSE;
 113 }
 114
 115 static unsigned be_alpha_is_watchpoint_set(const CONTEXT* ctx, unsigned idx)
 116 {
 117     dbg_printf("not done\n");
 118     return FALSE;
 119 }
 120
 121 static void be_alpha_clear_watchpoint(CONTEXT* ctx, unsigned idx)
 122 {
 123     dbg_printf("not done\n");
 124 }
 125
 126 static int be_alpha_adjust_pc_for_break(CONTEXT* ctx, BOOL way)
 127 {
 128     dbg_printf("not done\n");
 129     return 0;
 130 }
 131
 132 static int be_alpha_fetch_integer(const struct dbg_lvalue* lvalue, unsigned size,
 133                                 unsigned ext_sign, long long int* ret)
 134 {
 135     dbg_printf("not done\n");
 136     return FALSE;
 137 }
 138
 139 static int be_alpha_fetch_float(const struct dbg_lvalue* lvalue, unsigned size,
 140                               long double* ret)
 141 {
 142     dbg_printf("not done\n");
 143     return FALSE;
 144 }
 145
 146 struct backend_cpu be_alpha =
 147 {
 148     be_cpu_linearize,
 149     be_cpu_build_addr,
 150     be_alpha_get_addr,
 151     be_alpha_single_step,
 152     be_alpha_print_context,
 153     be_alpha_print_segment_info,
 154     be_alpha_init_registers,
 155     be_alpha_is_step_over_insn,
 156     be_alpha_is_function_return,
 157     be_alpha_is_break_insn,
 158     be_alpha_is_func_call,
 159     be_alpha_disasm_one_insn,
 160     be_alpha_insert_Xpoint,
 161     be_alpha_remove_Xpoint,
 162     be_alpha_is_watchpoint_set,
 163     be_alpha_clear_watchpoint,
 164     be_alpha_adjust_pc_for_break,
 165     be_alpha_fetch_integer,
 166     be_alpha_fetch_float,
 167 };
 168 #endif