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 unsigned be_alpha_is_step_over_insn(const void* insn)
  58 {
  59     dbg_printf("not done\n");
  60     return FALSE;
  61 }
  62
  63 static unsigned be_alpha_is_function_return(const void* insn)
  64 {
  65     dbg_printf("not done\n");
  66     return FALSE;
  67 }
  68
  69 static unsigned be_alpha_is_break_insn(const void* insn)
  70 {
  71     dbg_printf("not done\n");
  72     return FALSE;
  73 }
  74
  75 static unsigned be_alpha_is_func_call(const void* insn, ADDRESS64* callee)
  76 {
  77     return FALSE;
  78 }
  79
  80 static void be_alpha_disasm_one_insn(ADDRESS64* addr, int display)
  81 {
  82     dbg_printf("Disasm NIY\n");
  83 }
  84
  85 static unsigned be_alpha_insert_Xpoint(HANDLE hProcess, const struct be_process_io* pio,
  86                                        CONTEXT* ctx, enum be_xpoint_type type,
  87                                        void* addr, unsigned long* val, unsigned size)
  88 {
  89     unsigned long       xbp;
  90     SIZE_T              sz;
  91
  92     switch (type)
  93     {
  94     case be_xpoint_break:
  95         if (!size) return 0;
  96         if (!pio->read(hProcess, addr, val, 4, &sz) || sz != 4) return 0;
  97         xbp = 0x7d821008; /* 7d 82 10 08 ... in big endian */
  98         if (!pio->write(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, const struct be_process_io* pio,
 108                                        CONTEXT* ctx, enum be_xpoint_type type,
 109                                        void* addr, 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, LONGLONG* 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     IMAGE_FILE_MACHINE_ALPHA,
 149     8,
 150     be_cpu_linearize,
 151     be_cpu_build_addr,
 152     be_alpha_get_addr,
 153     be_alpha_get_register_info,
 154     be_alpha_single_step,
 155     be_alpha_print_context,
 156     be_alpha_print_segment_info,
 157     be_alpha_ctx,
 158     be_alpha_is_step_over_insn,
 159     be_alpha_is_function_return,
 160     be_alpha_is_break_insn,
 161     be_alpha_is_func_call,
 162     be_alpha_disasm_one_insn,
 163     be_alpha_insert_Xpoint,
 164     be_alpha_remove_Xpoint,
 165     be_alpha_is_watchpoint_set,
 166     be_alpha_clear_watchpoint,
 167     be_alpha_adjust_pc_for_break,
 168     be_alpha_fetch_integer,
 169     be_alpha_fetch_float,
 170 };
 171 #endif