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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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, ADDRESS64* addr)
  27 {
  28     dbg_printf("not done\n");
  29     return FALSE;
  30 }
  31
  32 static unsigned be_alpha_get_register_info(int regno, enum be_cpu_addr* kind)
  33 {
  34     dbg_printf("not done\n");
  35     return FALSE;
  36 }
  37
  38 static void be_alpha_single_step(CONTEXT* ctx, unsigned enable)
  39 {
  40     dbg_printf("not done\n");
  41 }
  42
  43 static void be_alpha_print_context(HANDLE hThread, const CONTEXT* ctx, int all_regs)
  44 {
  45     dbg_printf("Context printing for Alpha not done yet\n");
  46 }
  47
  48 static void be_alpha_print_segment_info(HANDLE hThread, const CONTEXT* ctx)
  49 {
  50 }
  51
  52 static struct dbg_internal_var be_alpha_ctx[] =
  53 {
  54     {0,                 NULL,           0,                                      dbg_itype_none}
  55 };
  56
  57 static const struct dbg_internal_var* be_alpha_init_registers(CONTEXT* ctx)
  58 {
  59     dbg_printf("not done\n");
  60     return be_alpha_ctx;
  61 }
  62
  63 static unsigned be_alpha_is_step_over_insn(void* insn)
  64 {
  65     dbg_printf("not done\n");
  66     return FALSE;
  67 }
  68
  69 static unsigned be_alpha_is_function_return(void* insn)
  70 {
  71     dbg_printf("not done\n");
  72     return FALSE;
  73 }
  74
  75 static unsigned be_alpha_is_break_insn(void* insn)
  76 {
  77     dbg_printf("not done\n");
  78     return FALSE;
  79 }
  80
  81 static unsigned be_alpha_is_func_call(void* insn, void** insn_callee)
  82 {
  83     return FALSE;
  84 }
  85
  86 static void be_alpha_disasm_one_insn(ADDRESS64* addr, int display)
  87 {
  88     dbg_printf("Disasm NIY\n");
  89 }
  90
  91 static unsigned be_alpha_insert_Xpoint(HANDLE hProcess, const struct be_process_io* pio,
  92                                        CONTEXT* ctx, enum be_xpoint_type type,
  93                                        void* addr, unsigned long* val, unsigned size)
  94 {
  95     unsigned long       xbp;
  96     SIZE_T              sz;
  97
  98     switch (type)
  99     {
 100     case be_xpoint_break:
 101         if (!size) return 0;
 102         if (!pio->read(hProcess, addr, val, 4, &sz) || sz != 4) return 0;
 103         xbp = 0x7d821008; /* 7d 82 10 08 ... in big endian */
 104         if (!pio->write(hProcess, addr, &xbp, 4, &sz) || sz != 4) return 0;
 105         break;
 106     default:
 107         dbg_printf("Unknown/unsupported bp type %c\n", type);
 108         return 0;
 109     }
 110     return 1;
 111 }
 112
 113 static unsigned be_alpha_remove_Xpoint(HANDLE hProcess, const struct be_process_io* pio,
 114                                        CONTEXT* ctx, enum be_xpoint_type type,
 115                                        void* addr, unsigned long val, unsigned size)
 116 {
 117     dbg_printf("not done\n");
 118     return FALSE;
 119 }
 120
 121 static unsigned be_alpha_is_watchpoint_set(const CONTEXT* ctx, unsigned idx)
 122 {
 123     dbg_printf("not done\n");
 124     return FALSE;
 125 }
 126
 127 static void be_alpha_clear_watchpoint(CONTEXT* ctx, unsigned idx)
 128 {
 129     dbg_printf("not done\n");
 130 }
 131
 132 static int be_alpha_adjust_pc_for_break(CONTEXT* ctx, BOOL way)
 133 {
 134     dbg_printf("not done\n");
 135     return 0;
 136 }
 137
 138 static int be_alpha_fetch_integer(const struct dbg_lvalue* lvalue, unsigned size,
 139                                   unsigned ext_sign, LONGLONG* ret)
 140 {
 141     dbg_printf("not done\n");
 142     return FALSE;
 143 }
 144
 145 static int be_alpha_fetch_float(const struct dbg_lvalue* lvalue, unsigned size,
 146                                 long double* ret)
 147 {
 148     dbg_printf("not done\n");
 149     return FALSE;
 150 }
 151
 152 struct backend_cpu be_alpha =
 153 {
 154     be_cpu_linearize,
 155     be_cpu_build_addr,
 156     be_alpha_get_addr,
 157     be_alpha_get_register_info,
 158     be_alpha_single_step,
 159     be_alpha_print_context,
 160     be_alpha_print_segment_info,
 161     be_alpha_init_registers,
 162     be_alpha_is_step_over_insn,
 163     be_alpha_is_function_return,
 164     be_alpha_is_break_insn,
 165     be_alpha_is_func_call,
 166     be_alpha_disasm_one_insn,
 167     be_alpha_insert_Xpoint,
 168     be_alpha_remove_Xpoint,
 169     be_alpha_is_watchpoint_set,
 170     be_alpha_clear_watchpoint,
 171     be_alpha_adjust_pc_for_break,
 172     be_alpha_fetch_integer,
 173     be_alpha_fetch_float,
 174 };
 175 #endif