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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #if defined(__powerpc__)
26 static unsigned be_ppc_get_addr(HANDLE hThread, const CONTEXT* ctx,
27 enum be_cpu_addr bca, ADDRESS* 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 void be_ppc_single_step(CONTEXT* ctx, unsigned enable)
44 # define MSR_SE (1<<10)
46 if (enable) ctx->Msr |= MSR_SE;
47 else ctx->Msr &= ~MSR_SE;
50 static void be_ppc_print_context(HANDLE hThread, const CONTEXT* ctx)
52 dbg_printf("Context printing for PPC not done yet\n");
55 static void be_ppc_print_segment_info(HANDLE hThread, const CONTEXT* ctx)
59 static struct dbg_internal_var be_ppc_ctx[] =
61 {0, NULL, 0, dbg_itype_none}
64 static const struct dbg_internal_var* be_ppc_init_registers(CONTEXT* ctx)
66 dbg_printf("not done\n");
70 static unsigned be_ppc_is_step_over_insn(void* insn)
72 dbg_printf("not done\n");
76 static unsigned be_ppc_is_function_return(void* insn)
78 dbg_printf("not done\n");
82 static unsigned be_ppc_is_break_insn(void* insn)
84 dbg_printf("not done\n");
88 static unsigned be_ppc_is_func_call(void* insn, void** insn_callee)
93 static void be_ppc_disasm_one_insn(ADDRESS* addr, int display)
95 dbg_printf("Disasm NIY\n");
98 static unsigned be_ppc_insert_Xpoint(HANDLE hProcess, struct be_process_io* pio,
99 CONTEXT* ctx, enum be_xpoint_type type,
100 void* addr, unsigned long* val, unsigned size)
107 case be_xpoint_break:
109 if (!pio->read(hProcess, addr, val, 4, &sz) || sz != 4) return 0;
110 xbp = 0x7d821008; /* 7d 82 10 08 ... in big endian */
111 if (!pio->write(hProcess, addr, &xbp, 4, &sz) || sz != 4) return 0;
114 dbg_printf("Unknown/unsupported bp type %c\n", type);
120 static unsigned be_ppc_remove_Xpoint(HANDLE hProcess, struct be_process_io* pio,
121 CONTEXT* ctx, enum be_xpoint_type type,
122 void* addr, unsigned long val, unsigned size)
128 case be_xpoint_break:
130 if (!pio->write(hProcess, addr, &val, 4, &sz) || sz == 4) return 0;
133 dbg_printf("Unknown/unsupported bp type %c\n", type);
139 static unsigned be_ppc_is_watchpoint_set(const CONTEXT* ctx, unsigned idx)
141 dbg_printf("not done\n");
145 static void be_ppc_clear_watchpoint(CONTEXT* ctx, unsigned idx)
147 dbg_printf("not done\n");
150 static int be_ppc_adjust_pc_for_break(CONTEXT* ctx, BOOL way)
152 dbg_printf("not done\n");
156 static int be_ppc_fetch_integer(const struct dbg_lvalue* lvalue, unsigned size,
157 unsigned ext_sign, long long int* ret)
159 dbg_printf("not done\n");
163 static int be_ppc_fetch_float(const struct dbg_lvalue* lvalue, unsigned size,
166 dbg_printf("not done\n");
170 struct backend_cpu be_ppc =
176 be_ppc_print_context,
177 be_ppc_print_segment_info,
178 be_ppc_init_registers,
179 be_ppc_is_step_over_insn,
180 be_ppc_is_function_return,
181 be_ppc_is_break_insn,
183 be_ppc_disasm_one_insn,
184 be_ppc_insert_Xpoint,
185 be_ppc_remove_Xpoint,
186 be_ppc_is_watchpoint_set,
187 be_ppc_clear_watchpoint,
188 be_ppc_adjust_pc_for_break,
189 be_ppc_fetch_integer,