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211 lines
5.3 KiB
C
211 lines
5.3 KiB
C
/*
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* Debugger Power PC specific functions
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*
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* Copyright 2000-2003 Marcus Meissner
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* 2004 Eric Pouech
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "debugger.h"
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#if defined(__powerpc__)
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static BOOL be_ppc_get_addr(HANDLE hThread, const CONTEXT* ctx,
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enum be_cpu_addr bca, ADDRESS64* addr)
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{
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switch (bca)
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{
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case be_cpu_addr_pc:
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return be_cpu_build_addr(hThread, ctx, addr, 0, ctx->Iar);
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default:
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case be_cpu_addr_stack:
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case be_cpu_addr_frame:
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dbg_printf("not done\n");
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}
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return FALSE;
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}
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static BOOL be_ppc_get_register_info(int regno, enum be_cpu_addr* kind)
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{
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dbg_printf("not done\n");
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return FALSE;
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}
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static void be_ppc_single_step(CONTEXT* ctx, BOOL enable)
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{
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#ifndef MSR_SE
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# define MSR_SE (1<<10)
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#endif
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if (enable) ctx->Msr |= MSR_SE;
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else ctx->Msr &= ~MSR_SE;
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}
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static void be_ppc_print_context(HANDLE hThread, const CONTEXT* ctx, int all_regs)
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{
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dbg_printf("Context printing for PPC not done yet\n");
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}
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static void be_ppc_print_segment_info(HANDLE hThread, const CONTEXT* ctx)
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{
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}
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static struct dbg_internal_var be_ppc_ctx[] =
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{
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{0, NULL, 0, dbg_itype_none}
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};
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static BOOL be_ppc_is_step_over_insn(const void* insn)
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{
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dbg_printf("not done\n");
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return FALSE;
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}
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static BOOL be_ppc_is_function_return(const void* insn)
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{
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dbg_printf("not done\n");
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return FALSE;
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}
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static BOOL be_ppc_is_break_insn(const void* insn)
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{
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dbg_printf("not done\n");
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return FALSE;
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}
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static BOOL be_ppc_is_func_call(const void* insn, ADDRESS64* callee)
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{
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return FALSE;
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}
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static BOOL be_ppc_is_jump(const void* insn, ADDRESS64* jumpee)
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{
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return FALSE;
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}
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static void be_ppc_disasm_one_insn(ADDRESS64* addr, int display)
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{
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dbg_printf("Disasm NIY\n");
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}
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static BOOL be_ppc_insert_Xpoint(HANDLE hProcess, const struct be_process_io* pio,
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CONTEXT* ctx, enum be_xpoint_type type,
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void* addr, unsigned long* val, unsigned size)
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{
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unsigned long xbp;
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SIZE_T sz;
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switch (type)
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{
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case be_xpoint_break:
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if (!size) return FALSE;
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if (!pio->read(hProcess, addr, val, 4, &sz) || sz != 4) return FALSE;
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xbp = 0x7d821008; /* 7d 82 10 08 ... in big endian */
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if (!pio->write(hProcess, addr, &xbp, 4, &sz) || sz != 4) return FALSE;
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break;
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default:
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dbg_printf("Unknown/unsupported bp type %c\n", type);
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return FALSE;
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}
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return TRUE;
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}
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static BOOL be_ppc_remove_Xpoint(HANDLE hProcess, const struct be_process_io* pio,
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CONTEXT* ctx, enum be_xpoint_type type,
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void* addr, unsigned long val, unsigned size)
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{
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SIZE_T sz;
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switch (type)
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{
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case be_xpoint_break:
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if (!size) return FALSE;
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if (!pio->write(hProcess, addr, &val, 4, &sz) || sz == 4) return FALSE;
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break;
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default:
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dbg_printf("Unknown/unsupported bp type %c\n", type);
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return FALSE;
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}
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return TRUE;
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}
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static BOOL be_ppc_is_watchpoint_set(const CONTEXT* ctx, unsigned idx)
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{
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dbg_printf("not done\n");
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return FALSE;
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}
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static void be_ppc_clear_watchpoint(CONTEXT* ctx, unsigned idx)
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{
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dbg_printf("not done\n");
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}
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static int be_ppc_adjust_pc_for_break(CONTEXT* ctx, BOOL way)
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{
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dbg_printf("not done\n");
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return 0;
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}
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static BOOL be_ppc_fetch_integer(const struct dbg_lvalue* lvalue, unsigned size,
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BOOL is_signed, LONGLONG* ret)
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{
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dbg_printf("not done\n");
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return FALSE;
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}
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static BOOL be_ppc_fetch_float(const struct dbg_lvalue* lvalue, unsigned size,
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long double* ret)
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{
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dbg_printf("not done\n");
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return FALSE;
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}
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static BOOL be_ppc_store_integer(const struct dbg_lvalue* lvalue, unsigned size,
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BOOL is_signed, LONGLONG val)
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{
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dbg_printf("be_ppc_store_integer: not done\n");
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return FALSE;
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}
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struct backend_cpu be_ppc =
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{
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IMAGE_FILE_MACHINE_POWERPC,
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4,
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be_cpu_linearize,
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be_cpu_build_addr,
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be_ppc_get_addr,
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be_ppc_get_register_info,
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be_ppc_single_step,
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be_ppc_print_context,
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be_ppc_print_segment_info,
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be_ppc_ctx,
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be_ppc_is_step_over_insn,
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be_ppc_is_function_return,
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be_ppc_is_break_insn,
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be_ppc_is_func_call,
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be_ppc_is_jump,
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be_ppc_disasm_one_insn,
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be_ppc_insert_Xpoint,
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be_ppc_remove_Xpoint,
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be_ppc_is_watchpoint_set,
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be_ppc_clear_watchpoint,
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be_ppc_adjust_pc_for_break,
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be_ppc_fetch_integer,
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be_ppc_fetch_float,
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be_ppc_store_integer,
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};
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#endif
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