Sweden-Number/programs/winedbg/be_ppc.c

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/*
* Debugger Power PC specific functions
*
* Copyright 2000-2003 Marcus Meissner
* 2004 Eric Pouech
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "debugger.h"
#if defined(__powerpc__)
static BOOL be_ppc_get_addr(HANDLE hThread, const dbg_ctx_t *ctx,
enum be_cpu_addr bca, ADDRESS64* addr)
{
switch (bca)
{
case be_cpu_addr_pc:
return be_cpu_build_addr(hThread, ctx, addr, 0, ctx->ctx.Iar);
default:
case be_cpu_addr_stack:
case be_cpu_addr_frame:
dbg_printf("not done\n");
}
return FALSE;
}
static BOOL be_ppc_get_register_info(int regno, enum be_cpu_addr* kind)
{
dbg_printf("not done\n");
return FALSE;
}
static void be_ppc_single_step(dbg_ctx_t *ctx, BOOL enable)
{
#ifndef MSR_SE
# define MSR_SE (1<<10)
#endif
if (enable) ctx->ctx.Msr |= MSR_SE;
else ctx->ctx.Msr &= ~MSR_SE;
}
static void be_ppc_print_context(HANDLE hThread, const dbg_ctx_t *ctx, int all_regs)
{
dbg_printf("Context printing for PPC not done yet\n");
}
static void be_ppc_print_segment_info(HANDLE hThread, const dbg_ctx_t *ctx)
{
}
static struct dbg_internal_var be_ppc_ctx[] =
{
{0, NULL, 0, dbg_itype_none}
};
static BOOL be_ppc_is_step_over_insn(const void* insn)
{
dbg_printf("not done\n");
return FALSE;
}
static BOOL be_ppc_is_function_return(const void* insn)
{
dbg_printf("not done\n");
return FALSE;
}
static BOOL be_ppc_is_break_insn(const void* insn)
{
dbg_printf("not done\n");
return FALSE;
}
static BOOL be_ppc_is_func_call(const void* insn, ADDRESS64* callee)
{
return FALSE;
}
static BOOL be_ppc_is_jump(const void* insn, ADDRESS64* jumpee)
{
return FALSE;
}
static void be_ppc_disasm_one_insn(ADDRESS64* addr, int display)
{
dbg_printf("Disasm NIY\n");
}
static BOOL be_ppc_insert_Xpoint(HANDLE hProcess, const struct be_process_io* pio,
dbg_ctx_t *ctx, enum be_xpoint_type type,
void* addr, unsigned long* val, unsigned size)
{
unsigned long xbp;
SIZE_T sz;
switch (type)
{
case be_xpoint_break:
if (!size) return FALSE;
if (!pio->read(hProcess, addr, val, 4, &sz) || sz != 4) return FALSE;
xbp = 0x7d821008; /* 7d 82 10 08 ... in big endian */
if (!pio->write(hProcess, addr, &xbp, 4, &sz) || sz != 4) return FALSE;
break;
default:
dbg_printf("Unknown/unsupported bp type %c\n", type);
return FALSE;
}
return TRUE;
}
static BOOL be_ppc_remove_Xpoint(HANDLE hProcess, const struct be_process_io* pio,
dbg_ctx_t *ctx, enum be_xpoint_type type,
void* addr, unsigned long val, unsigned size)
{
SIZE_T sz;
switch (type)
{
case be_xpoint_break:
if (!size) return FALSE;
if (!pio->write(hProcess, addr, &val, 4, &sz) || sz == 4) return FALSE;
break;
default:
dbg_printf("Unknown/unsupported bp type %c\n", type);
return FALSE;
}
return TRUE;
}
static BOOL be_ppc_is_watchpoint_set(const dbg_ctx_t *ctx, unsigned idx)
{
dbg_printf("not done\n");
return FALSE;
}
static void be_ppc_clear_watchpoint(dbg_ctx_t *ctx, unsigned idx)
{
dbg_printf("not done\n");
}
static int be_ppc_adjust_pc_for_break(dbg_ctx_t *ctx, BOOL way)
{
dbg_printf("not done\n");
return 0;
}
static BOOL be_ppc_fetch_integer(const struct dbg_lvalue* lvalue, unsigned size,
BOOL is_signed, LONGLONG* ret)
{
dbg_printf("not done\n");
return FALSE;
}
static BOOL be_ppc_fetch_float(const struct dbg_lvalue* lvalue, unsigned size,
long double* ret)
{
dbg_printf("not done\n");
return FALSE;
}
static BOOL be_ppc_store_integer(const struct dbg_lvalue* lvalue, unsigned size,
BOOL is_signed, LONGLONG val)
{
dbg_printf("be_ppc_store_integer: not done\n");
return FALSE;
}
static BOOL be_ppc_get_context(HANDLE thread, dbg_ctx_t *ctx)
{
ctx->ctx.ContextFlags = CONTEXT_ALL;
return GetThreadContext(thread, &ctx->ctx);
}
static BOOL be_ppc_set_context(HANDLE thread, const dbg_ctx_t *ctx)
{
return SetThreadContext(thread, &ctx->ctx);
}
#define REG(f,n,t,r) {f, n, t, FIELD_OFFSET(CONTEXT, r), sizeof(((CONTEXT*)NULL)->r)}
static struct gdb_register be_ppc_gdb_register_map[] = {
REG("core", "r0", NULL, Gpr0),
REG(NULL, "r1", NULL, Gpr1),
REG(NULL, "r2", NULL, Gpr2),
REG(NULL, "r3", NULL, Gpr3),
REG(NULL, "r4", NULL, Gpr4),
REG(NULL, "r5", NULL, Gpr5),
REG(NULL, "r6", NULL, Gpr6),
REG(NULL, "r7", NULL, Gpr7),
REG(NULL, "r8", NULL, Gpr8),
REG(NULL, "r9", NULL, Gpr9),
REG(NULL, "r10", NULL, Gpr10),
REG(NULL, "r11", NULL, Gpr11),
REG(NULL, "r12", NULL, Gpr12),
REG(NULL, "r13", NULL, Gpr13),
REG(NULL, "r14", NULL, Gpr14),
REG(NULL, "r15", NULL, Gpr15),
REG(NULL, "r16", NULL, Gpr16),
REG(NULL, "r17", NULL, Gpr17),
REG(NULL, "r18", NULL, Gpr18),
REG(NULL, "r19", NULL, Gpr19),
REG(NULL, "r20", NULL, Gpr20),
REG(NULL, "r21", NULL, Gpr21),
REG(NULL, "r22", NULL, Gpr22),
REG(NULL, "r23", NULL, Gpr23),
REG(NULL, "r24", NULL, Gpr24),
REG(NULL, "r25", NULL, Gpr25),
REG(NULL, "r26", NULL, Gpr26),
REG(NULL, "r27", NULL, Gpr27),
REG(NULL, "r28", NULL, Gpr28),
REG(NULL, "r29", NULL, Gpr29),
REG(NULL, "r30", NULL, Gpr30),
REG(NULL, "r31", NULL, Gpr31),
REG(NULL, "pc", "code_ptr", Iar),
REG(NULL, "msr", NULL, Msr),
REG(NULL, "cr", NULL, Cr),
REG(NULL, "lr", "code_ptr", Lr),
REG(NULL, "ctr", NULL, Ctr),
REG(NULL, "xer", NULL, Xer),
REG("fpu", "f0", "ieee_single", Fpr0, 4),
REG(NULL, "f1", "ieee_single", Fpr1, 4),
REG(NULL, "f2", "ieee_single", Fpr2, 4),
REG(NULL, "f3", "ieee_single", Fpr3, 4),
REG(NULL, "f4", "ieee_single", Fpr4, 4),
REG(NULL, "f5", "ieee_single", Fpr5, 4),
REG(NULL, "f6", "ieee_single", Fpr6, 4),
REG(NULL, "f7", "ieee_single", Fpr7, 4),
REG(NULL, "f8", "ieee_single", Fpr8, 4),
REG(NULL, "f9", "ieee_single", Fpr9, 4),
REG(NULL, "f10", "ieee_single", Fpr10, 4),
REG(NULL, "f11", "ieee_single", Fpr11, 4),
REG(NULL, "f12", "ieee_single", Fpr12, 4),
REG(NULL, "f13", "ieee_single", Fpr13, 4),
REG(NULL, "f14", "ieee_single", Fpr14, 4),
REG(NULL, "f15", "ieee_single", Fpr15, 4),
REG(NULL, "f16", "ieee_single", Fpr16, 4),
REG(NULL, "f17", "ieee_single", Fpr17, 4),
REG(NULL, "f18", "ieee_single", Fpr18, 4),
REG(NULL, "f19", "ieee_single", Fpr19, 4),
REG(NULL, "f20", "ieee_single", Fpr20, 4),
REG(NULL, "f21", "ieee_single", Fpr21, 4),
REG(NULL, "f22", "ieee_single", Fpr22, 4),
REG(NULL, "f23", "ieee_single", Fpr23, 4),
REG(NULL, "f24", "ieee_single", Fpr24, 4),
REG(NULL, "f25", "ieee_single", Fpr25, 4),
REG(NULL, "f26", "ieee_single", Fpr26, 4),
REG(NULL, "f27", "ieee_single", Fpr27, 4),
REG(NULL, "f28", "ieee_single", Fpr28, 4),
REG(NULL, "f29", "ieee_single", Fpr29, 4),
REG(NULL, "f30", "ieee_single", Fpr30, 4),
REG(NULL, "f31", "ieee_single", Fpr31, 4),
REG(NULL, "fpscr", NULL, Fpscr, 4),
/* FIXME: MQ is missing? FIELD_OFFSET(CONTEXT, Mq), */
/* see gdb/nlm/ppc.c */
};
struct backend_cpu be_ppc =
{
IMAGE_FILE_MACHINE_POWERPC,
4,
be_cpu_linearize,
be_cpu_build_addr,
be_ppc_get_addr,
be_ppc_get_register_info,
be_ppc_single_step,
be_ppc_print_context,
be_ppc_print_segment_info,
be_ppc_ctx,
be_ppc_is_step_over_insn,
be_ppc_is_function_return,
be_ppc_is_break_insn,
be_ppc_is_func_call,
be_ppc_is_jump,
be_ppc_disasm_one_insn,
be_ppc_insert_Xpoint,
be_ppc_remove_Xpoint,
be_ppc_is_watchpoint_set,
be_ppc_clear_watchpoint,
be_ppc_adjust_pc_for_break,
be_ppc_fetch_integer,
be_ppc_fetch_float,
be_ppc_store_integer,
be_ppc_get_context,
be_ppc_set_context,
be_ppc_gdb_register_map,
ARRAY_SIZE(be_ppc_gdb_register_map),
};
#endif