304 lines
7.3 KiB
C
304 lines
7.3 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 dbg_ctx_t *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->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(dbg_ctx_t *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->ctx.Msr |= MSR_SE;
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else ctx->ctx.Msr &= ~MSR_SE;
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}
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static void be_ppc_print_context(HANDLE hThread, const dbg_ctx_t *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 dbg_ctx_t *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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dbg_ctx_t *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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dbg_ctx_t *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 dbg_ctx_t *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(dbg_ctx_t *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(dbg_ctx_t *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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static BOOL be_ppc_get_context(HANDLE thread, dbg_ctx_t *ctx)
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{
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ctx->ctx.ContextFlags = CONTEXT_ALL;
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return GetThreadContext(thread, &ctx->ctx);
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}
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static BOOL be_ppc_set_context(HANDLE thread, const dbg_ctx_t *ctx)
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{
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return SetThreadContext(thread, &ctx->ctx);
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}
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#define REG(r,gs,m) {FIELD_OFFSET(CONTEXT, r), sizeof(((CONTEXT*)NULL)->r), gs, m}
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static struct gdb_register be_ppc_gdb_register_map[] = {
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REG(Gpr0, 4),
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REG(Gpr1, 4),
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REG(Gpr2, 4),
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REG(Gpr3, 4),
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REG(Gpr4, 4),
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REG(Gpr5, 4),
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REG(Gpr6, 4),
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REG(Gpr7, 4),
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REG(Gpr8, 4),
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REG(Gpr9, 4),
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REG(Gpr10, 4),
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REG(Gpr11, 4),
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REG(Gpr12, 4),
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REG(Gpr13, 4),
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REG(Gpr14, 4),
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REG(Gpr15, 4),
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REG(Gpr16, 4),
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REG(Gpr17, 4),
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REG(Gpr18, 4),
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REG(Gpr19, 4),
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REG(Gpr20, 4),
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REG(Gpr21, 4),
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REG(Gpr22, 4),
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REG(Gpr23, 4),
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REG(Gpr24, 4),
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REG(Gpr25, 4),
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REG(Gpr26, 4),
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REG(Gpr27, 4),
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REG(Gpr28, 4),
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REG(Gpr29, 4),
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REG(Gpr30, 4),
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REG(Gpr31, 4),
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REG(Fpr0, 4),
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REG(Fpr1, 4),
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REG(Fpr2, 4),
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REG(Fpr3, 4),
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REG(Fpr4, 4),
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REG(Fpr5, 4),
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REG(Fpr6, 4),
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REG(Fpr7, 4),
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REG(Fpr8, 4),
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REG(Fpr9, 4),
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REG(Fpr10, 4),
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REG(Fpr11, 4),
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REG(Fpr12, 4),
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REG(Fpr13, 4),
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REG(Fpr14, 4),
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REG(Fpr15, 4),
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REG(Fpr16, 4),
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REG(Fpr17, 4),
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REG(Fpr18, 4),
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REG(Fpr19, 4),
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REG(Fpr20, 4),
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REG(Fpr21, 4),
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REG(Fpr22, 4),
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REG(Fpr23, 4),
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REG(Fpr24, 4),
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REG(Fpr25, 4),
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REG(Fpr26, 4),
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REG(Fpr27, 4),
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REG(Fpr28, 4),
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REG(Fpr29, 4),
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REG(Fpr30, 4),
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REG(Fpr31, 4),
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REG(Iar, 4),
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REG(Msr, 4),
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REG(Cr, 4),
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REG(Lr, 4),
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REG(Ctr, 4),
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REG(Xer, 4),
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/* FIXME: MQ is missing? FIELD_OFFSET(CONTEXT, Mq), */
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/* see gdb/nlm/ppc.c */
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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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be_ppc_get_context,
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be_ppc_set_context,
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be_ppc_gdb_register_map,
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ARRAY_SIZE(be_ppc_gdb_register_map),
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};
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#endif
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