Sweden-Number/programs/winedbg/be_arm64.c

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/*
* Debugger ARM64 specific functions
*
* Copyright 2010-2013 André Hentschel
*
* 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(__aarch64__) && !defined(__AARCH64EB__)
static BOOL be_arm64_get_addr(HANDLE hThread, const dbg_ctx_t *ctx,
enum be_cpu_addr bca, ADDRESS64* addr)
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{
switch (bca)
{
case be_cpu_addr_pc:
return be_cpu_build_addr(hThread, ctx, addr, 0, ctx->ctx.Pc);
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case be_cpu_addr_stack:
return be_cpu_build_addr(hThread, ctx, addr, 0, ctx->ctx.Sp);
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case be_cpu_addr_frame:
return be_cpu_build_addr(hThread, ctx, addr, 0, ctx->ctx.u.s.Fp);
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break;
}
return FALSE;
}
static BOOL be_arm64_get_register_info(int regno, enum be_cpu_addr* kind)
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{
switch (regno)
{
case CV_ARM64_PC: *kind = be_cpu_addr_pc; return TRUE;
case CV_ARM64_SP: *kind = be_cpu_addr_stack; return TRUE;
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case CV_ARM64_FP: *kind = be_cpu_addr_frame; return TRUE;
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}
return FALSE;
}
static void be_arm64_single_step(dbg_ctx_t *ctx, BOOL enable)
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{
dbg_printf("be_arm64_single_step: not done\n");
}
static void be_arm64_print_context(HANDLE hThread, const dbg_ctx_t *ctx, int all_regs)
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{
static const char condflags[] = "NZCV";
int i;
char buf[8];
switch (ctx->ctx.Cpsr & 0x0f)
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{
case 0: strcpy(buf, "EL0t"); break;
case 4: strcpy(buf, "EL1t"); break;
case 5: strcpy(buf, "EL1t"); break;
case 8: strcpy(buf, "EL2t"); break;
case 9: strcpy(buf, "EL2t"); break;
case 12: strcpy(buf, "EL3t"); break;
case 13: strcpy(buf, "EL3t"); break;
default: strcpy(buf, "UNKNWN"); break;
}
dbg_printf("Register dump:\n");
dbg_printf("%s %s Mode\n", (ctx->ctx.Cpsr & 0x10) ? "ARM" : "ARM64", buf);
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strcpy(buf, condflags);
for (i = 0; buf[i]; i++)
if (!((ctx->ctx.Cpsr >> 26) & (1 << (sizeof(condflags) - i))))
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buf[i] = '-';
dbg_printf(" Pc:%016lx Sp:%016lx Lr:%016lx Cpsr:%08x(%s)\n",
ctx->ctx.Pc, ctx->ctx.Sp, ctx->ctx.u.s.Lr, ctx->ctx.Cpsr, buf);
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dbg_printf(" x0: %016lx x1: %016lx x2: %016lx x3: %016lx x4: %016lx\n",
ctx->ctx.u.s.X0, ctx->ctx.u.s.X1, ctx->ctx.u.s.X2, ctx->ctx.u.s.X3, ctx->ctx.u.s.X4);
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dbg_printf(" x5: %016lx x6: %016lx x7: %016lx x8: %016lx x9: %016lx\n",
ctx->ctx.u.s.X5, ctx->ctx.u.s.X6, ctx->ctx.u.s.X7, ctx->ctx.u.s.X8, ctx->ctx.u.s.X9);
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dbg_printf(" x10:%016lx x11:%016lx x12:%016lx x13:%016lx x14:%016lx\n",
ctx->ctx.u.s.X10, ctx->ctx.u.s.X11, ctx->ctx.u.s.X12, ctx->ctx.u.s.X13, ctx->ctx.u.s.X14);
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dbg_printf(" x15:%016lx ip0:%016lx ip1:%016lx x18:%016lx x19:%016lx\n",
ctx->ctx.u.s.X15, ctx->ctx.u.s.X16, ctx->ctx.u.s.X17, ctx->ctx.u.s.X18, ctx->ctx.u.s.X19);
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dbg_printf(" x20:%016lx x21:%016lx x22:%016lx x23:%016lx x24:%016lx\n",
ctx->ctx.u.s.X20, ctx->ctx.u.s.X21, ctx->ctx.u.s.X22, ctx->ctx.u.s.X23, ctx->ctx.u.s.X24);
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dbg_printf(" x25:%016lx x26:%016lx x27:%016lx x28:%016lx Fp:%016lx\n",
ctx->ctx.u.s.X25, ctx->ctx.u.s.X26, ctx->ctx.u.s.X27, ctx->ctx.u.s.X28, ctx->ctx.u.s.Fp);
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if (all_regs) dbg_printf( "Floating point ARM64 dump not implemented\n" );
}
static void be_arm64_print_segment_info(HANDLE hThread, const dbg_ctx_t *ctx)
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{
}
static struct dbg_internal_var be_arm64_ctx[] =
{
{CV_ARM64_PSTATE, "cpsr", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, Cpsr), dbg_itype_unsigned_int},
{CV_ARM64_X0 + 0, "x0", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X0), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 1, "x1", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X1), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 2, "x2", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X2), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 3, "x3", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X3), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 4, "x4", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X4), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 5, "x5", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X5), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 6, "x6", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X6), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 7, "x7", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X7), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 8, "x8", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X8), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 9, "x9", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X9), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 10, "x10", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X10), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 11, "x11", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X11), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 12, "x12", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X12), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 13, "x13", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X13), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 14, "x14", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X14), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 15, "x15", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X15), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 16, "x16", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X16), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 17, "x17", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X17), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 18, "x18", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X18), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 19, "x19", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X19), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 20, "x20", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X20), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 21, "x21", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X21), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 22, "x22", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X22), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 23, "x23", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X23), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 24, "x24", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X24), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 25, "x25", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X25), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 26, "x26", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X26), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 27, "x27", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X27), dbg_itype_unsigned_long_int},
{CV_ARM64_X0 + 28, "x28", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.X28), dbg_itype_unsigned_long_int},
{CV_ARM64_FP, "fp", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.Fp), dbg_itype_unsigned_long_int},
{CV_ARM64_LR, "lr", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, u.s.Lr), dbg_itype_unsigned_long_int},
{CV_ARM64_SP, "sp", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, Sp), dbg_itype_unsigned_long_int},
{CV_ARM64_PC, "pc", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, Pc), dbg_itype_unsigned_long_int},
{0, NULL, 0, dbg_itype_none}
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};
static BOOL be_arm64_is_step_over_insn(const void* insn)
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{
dbg_printf("be_arm64_is_step_over_insn: not done\n");
return FALSE;
}
static BOOL be_arm64_is_function_return(const void* insn)
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{
dbg_printf("be_arm64_is_function_return: not done\n");
return FALSE;
}
static BOOL be_arm64_is_break_insn(const void* insn)
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{
dbg_printf("be_arm64_is_break_insn: not done\n");
return FALSE;
}
static BOOL be_arm64_is_func_call(const void* insn, ADDRESS64* callee)
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{
return FALSE;
}
static BOOL be_arm64_is_jump(const void* insn, ADDRESS64* jumpee)
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{
return FALSE;
}
static BOOL be_arm64_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)
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{
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;
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default:
dbg_printf("Unknown/unsupported bp type %c\n", type);
return FALSE;
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}
return TRUE;
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}
static BOOL be_arm64_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)
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{
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;
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break;
default:
dbg_printf("Unknown/unsupported bp type %c\n", type);
return FALSE;
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}
return TRUE;
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}
static BOOL be_arm64_is_watchpoint_set(const dbg_ctx_t *ctx, unsigned idx)
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{
dbg_printf("be_arm64_is_watchpoint_set: not done\n");
return FALSE;
}
static void be_arm64_clear_watchpoint(dbg_ctx_t *ctx, unsigned idx)
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{
dbg_printf("be_arm64_clear_watchpoint: not done\n");
}
static int be_arm64_adjust_pc_for_break(dbg_ctx_t *ctx, BOOL way)
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{
if (way)
{
ctx->ctx.Pc -= 4;
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return -4;
}
ctx->ctx.Pc += 4;
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return 4;
}
static BOOL be_arm64_fetch_integer(const struct dbg_lvalue* lvalue, unsigned size,
BOOL is_signed, LONGLONG* ret)
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{
if (size != 1 && size != 2 && size != 4 && size != 8) return FALSE;
memset(ret, 0, sizeof(*ret)); /* clear unread bytes */
/* FIXME: this assumes that debuggee and debugger use the same
* integral representation
*/
if (!memory_read_value(lvalue, size, ret)) return FALSE;
/* propagate sign information */
if (is_signed && size < 8 && (*ret >> (size * 8 - 1)) != 0)
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{
ULONGLONG neg = -1;
*ret |= neg << (size * 8);
}
return TRUE;
}
static BOOL be_arm64_fetch_float(const struct dbg_lvalue* lvalue, unsigned size,
long double* ret)
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{
char tmp[sizeof(long double)];
/* FIXME: this assumes that debuggee and debugger use the same
* representation for reals
*/
if (!memory_read_value(lvalue, size, tmp)) return FALSE;
if (size == sizeof(float)) *ret = *(float*)tmp;
else if (size == sizeof(double)) *ret = *(double*)tmp;
else if (size == sizeof(long double)) *ret = *(long double*)tmp;
else return FALSE;
return TRUE;
}
static BOOL be_arm64_store_integer(const struct dbg_lvalue* lvalue, unsigned size,
BOOL is_signed, LONGLONG val)
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{
/* this is simple if we're on a little endian CPU */
return memory_write_value(lvalue, size, &val);
}
void be_arm64_disasm_one_insn(ADDRESS64 *addr, int display)
{
dbg_printf("be_arm64_disasm_one_insn: not done\n");
}
static BOOL be_arm64_get_context(HANDLE thread, dbg_ctx_t *ctx)
{
ctx->ctx.ContextFlags = CONTEXT_ALL;
return GetThreadContext(thread, &ctx->ctx);
}
static BOOL be_arm64_set_context(HANDLE thread, const dbg_ctx_t *ctx)
{
return SetThreadContext(thread, &ctx->ctx);
}
#define REG(r,gs) {FIELD_OFFSET(CONTEXT, r), sizeof(((CONTEXT*)NULL)->r), gs}
static struct gdb_register be_arm64_gdb_register_map[] = {
REG(Cpsr, 4),
REG(u.s.X0, 8),
REG(u.s.X1, 8),
REG(u.s.X2, 8),
REG(u.s.X3, 8),
REG(u.s.X4, 8),
REG(u.s.X5, 8),
REG(u.s.X6, 8),
REG(u.s.X7, 8),
REG(u.s.X8, 8),
REG(u.s.X9, 8),
REG(u.s.X10, 8),
REG(u.s.X11, 8),
REG(u.s.X12, 8),
REG(u.s.X13, 8),
REG(u.s.X14, 8),
REG(u.s.X15, 8),
REG(u.s.X16, 8),
REG(u.s.X17, 8),
REG(u.s.X18, 8),
REG(u.s.X19, 8),
REG(u.s.X20, 8),
REG(u.s.X21, 8),
REG(u.s.X22, 8),
REG(u.s.X23, 8),
REG(u.s.X24, 8),
REG(u.s.X25, 8),
REG(u.s.X26, 8),
REG(u.s.X27, 8),
REG(u.s.X28, 8),
REG(u.s.Fp, 8),
REG(u.s.Lr, 8),
REG(Sp, 8),
REG(Pc, 8),
};
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struct backend_cpu be_arm64 =
{
IMAGE_FILE_MACHINE_ARM64,
8,
be_cpu_linearize,
be_cpu_build_addr,
be_arm64_get_addr,
be_arm64_get_register_info,
be_arm64_single_step,
be_arm64_print_context,
be_arm64_print_segment_info,
be_arm64_ctx,
be_arm64_is_step_over_insn,
be_arm64_is_function_return,
be_arm64_is_break_insn,
be_arm64_is_func_call,
be_arm64_is_jump,
be_arm64_disasm_one_insn,
be_arm64_insert_Xpoint,
be_arm64_remove_Xpoint,
be_arm64_is_watchpoint_set,
be_arm64_clear_watchpoint,
be_arm64_adjust_pc_for_break,
be_arm64_fetch_integer,
be_arm64_fetch_float,
be_arm64_store_integer,
be_arm64_get_context,
be_arm64_set_context,
be_arm64_gdb_register_map,
ARRAY_SIZE(be_arm64_gdb_register_map),
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};
#endif