2 * Debugger Power PC specific functions
4 * Copyright 2000-2003 Marcus Meissner
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
24 #if defined(__powerpc__)
26 static unsigned be_ppc_get_addr(HANDLE hThread, const CONTEXT* ctx,
27 enum be_cpu_addr bca, ADDRESS64* addr)
32 return be_cpu_build_addr(hThread, ctx, addr, 0, ctx->Iar);
34 case be_cpu_addr_stack:
35 case be_cpu_addr_frame:
36 dbg_printf("not done\n");
41 static unsigned be_ppc_get_register_info(int regno, enum be_cpu_addr* kind)
43 dbg_printf("not done\n");
47 static void be_ppc_single_step(CONTEXT* ctx, unsigned enable)
50 # define MSR_SE (1<<10)
52 if (enable) ctx->Msr |= MSR_SE;
53 else ctx->Msr &= ~MSR_SE;
56 static void be_ppc_print_context(HANDLE hThread, const CONTEXT* ctx, int all_regs)
58 dbg_printf("Context printing for PPC not done yet\n");
61 static void be_ppc_print_segment_info(HANDLE hThread, const CONTEXT* ctx)
65 static struct dbg_internal_var be_ppc_ctx[] =
67 {0, NULL, 0, dbg_itype_none}
70 static unsigned be_ppc_is_step_over_insn(const void* insn)
72 dbg_printf("not done\n");
76 static unsigned be_ppc_is_function_return(const void* insn)
78 dbg_printf("not done\n");
82 static unsigned be_ppc_is_break_insn(const void* insn)
84 dbg_printf("not done\n");
88 static unsigned be_ppc_is_func_call(const void* insn, ADDRESS64* callee)
93 static unsigned be_ppc_is_jump(const void* insn, ADDRESS64* jumpee)
98 static void be_ppc_disasm_one_insn(ADDRESS64* addr, int display)
101 dbg_printf("Disasm NIY\n");
104 static unsigned be_ppc_insert_Xpoint(HANDLE hProcess, const struct be_process_io* pio,
105 CONTEXT* ctx, enum be_xpoint_type type,
106 void* addr, unsigned long* val, unsigned size)
113 case be_xpoint_break:
115 if (!pio->read(hProcess, addr, val, 4, &sz) || sz != 4) return 0;
116 xbp = 0x7d821008; /* 7d 82 10 08 ... in big endian */
117 if (!pio->write(hProcess, addr, &xbp, 4, &sz) || sz != 4) return 0;
120 dbg_printf("Unknown/unsupported bp type %c\n", type);
126 static unsigned be_ppc_remove_Xpoint(HANDLE hProcess, const struct be_process_io* pio,
127 CONTEXT* ctx, enum be_xpoint_type type,
128 void* addr, unsigned long val, unsigned size)
134 case be_xpoint_break:
136 if (!pio->write(hProcess, addr, &val, 4, &sz) || sz == 4) return 0;
139 dbg_printf("Unknown/unsupported bp type %c\n", type);
145 static unsigned be_ppc_is_watchpoint_set(const CONTEXT* ctx, unsigned idx)
147 dbg_printf("not done\n");
151 static void be_ppc_clear_watchpoint(CONTEXT* ctx, unsigned idx)
153 dbg_printf("not done\n");
156 static int be_ppc_adjust_pc_for_break(CONTEXT* ctx, BOOL way)
158 dbg_printf("not done\n");
162 static int be_ppc_fetch_integer(const struct dbg_lvalue* lvalue, unsigned size,
163 unsigned ext_sign, LONGLONG* ret)
165 dbg_printf("not done\n");
169 static int be_ppc_fetch_float(const struct dbg_lvalue* lvalue, unsigned size,
172 dbg_printf("not done\n");
176 static int be_ppc_store_integer(const struct dbg_lvalue* lvalue, unsigned size,
177 unsigned is_signed, LONGLONG val)
179 dbg_printf("be_ppc_store_integer: not done\n");
183 struct backend_cpu be_ppc =
185 IMAGE_FILE_MACHINE_POWERPC,
190 be_ppc_get_register_info,
192 be_ppc_print_context,
193 be_ppc_print_segment_info,
195 be_ppc_is_step_over_insn,
196 be_ppc_is_function_return,
197 be_ppc_is_break_insn,
200 be_ppc_disasm_one_insn,
201 be_ppc_insert_Xpoint,
202 be_ppc_remove_Xpoint,
203 be_ppc_is_watchpoint_set,
204 be_ppc_clear_watchpoint,
205 be_ppc_adjust_pc_for_break,
206 be_ppc_fetch_integer,
208 be_ppc_store_integer,