310 lines
12 KiB
C
310 lines
12 KiB
C
|
/*
|
||
|
|
* 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 unsigned be_arm64_get_addr(HANDLE hThread, const CONTEXT* 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->Pc);
|
||
|
|
case be_cpu_addr_stack:
|
||
|
|
return be_cpu_build_addr(hThread, ctx, addr, 0, ctx->Sp);
|
||
|
|
case be_cpu_addr_frame:
|
||
|
|
return be_cpu_build_addr(hThread, ctx, addr, 0, ctx->X29);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
static unsigned be_arm64_get_register_info(int regno, enum be_cpu_addr* kind)
|
||
|
|
{
|
||
|
|
switch (regno)
|
||
|
|
{
|
||
|
|
case CV_ARM64_PC: *kind = be_cpu_addr_pc; return TRUE;
|
||
|
|
case CV_ARM64_SP: *kind = be_cpu_addr_stack; return TRUE;
|
||
|
|
case CV_ARM64_X0 + 29: *kind = be_cpu_addr_frame; return TRUE;
|
||
|
|
}
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void be_arm64_single_step(CONTEXT* ctx, unsigned enable)
|
||
|
|
{
|
||
|
|
dbg_printf("be_arm64_single_step: not done\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
static void be_arm64_print_context(HANDLE hThread, const CONTEXT* ctx, int all_regs)
|
||
|
|
{
|
||
|
|
static const char condflags[] = "NZCV";
|
||
|
|
int i;
|
||
|
|
char buf[8];
|
||
|
|
|
||
|
|
switch (ctx->PState & 0x0f)
|
||
|
|
{
|
||
|
|
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->PState & 0x10) ? "ARM" : "ARM64", buf);
|
||
|
|
|
||
|
|
strcpy(buf, condflags);
|
||
|
|
for (i = 0; buf[i]; i++)
|
||
|
|
if (!((ctx->PState >> 26) & (1 << (sizeof(condflags) - i))))
|
||
|
|
buf[i] = '-';
|
||
|
|
|
||
|
|
dbg_printf(" Pc:%016lx Sp:%016lx Pstate:%016lx(%s)\n",
|
||
|
|
ctx->Pc, ctx->Sp, ctx->PState, buf);
|
||
|
|
dbg_printf(" x0: %016lx x1: %016lx x2: %016lx x3: %016lx x4: %016lx\n",
|
||
|
|
ctx->X0, ctx->X1, ctx->X2, ctx->X3, ctx->X4);
|
||
|
|
dbg_printf(" x5: %016lx x6: %016lx x7: %016lx x8: %016lx x9: %016lx\n",
|
||
|
|
ctx->X5, ctx->X6, ctx->X7, ctx->X8, ctx->X9);
|
||
|
|
dbg_printf(" x10:%016lx x11:%016lx x12:%016lx x13:%016lx x14:%016lx\n",
|
||
|
|
ctx->X10, ctx->X11, ctx->X12, ctx->X13, ctx->X14);
|
||
|
|
dbg_printf(" x15:%016lx x16:%016lx x17:%016lx x18:%016lx x19:%016lx\n",
|
||
|
|
ctx->X15, ctx->X16, ctx->X17, ctx->X18, ctx->X19);
|
||
|
|
dbg_printf(" x20:%016lx x21:%016lx x22:%016lx x23:%016lx x24:%016lx\n",
|
||
|
|
ctx->X20, ctx->X21, ctx->X22, ctx->X23, ctx->X24);
|
||
|
|
dbg_printf(" x25:%016lx x26:%016lx x27:%016lx x28:%016lx x29:%016lx\n",
|
||
|
|
ctx->X25, ctx->X26, ctx->X27, ctx->X28, ctx->X29);
|
||
|
|
dbg_printf(" x30:%016lx\n", ctx->X30);
|
||
|
|
|
||
|
|
if (all_regs) dbg_printf( "Floating point ARM64 dump not implemented\n" );
|
||
|
|
}
|
||
|
|
|
||
|
|
static void be_arm64_print_segment_info(HANDLE hThread, const CONTEXT* ctx)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct dbg_internal_var be_arm64_ctx[] =
|
||
|
|
{
|
||
|
|
{CV_ARM64_X0 + 0, "x0", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X0), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 1, "x1", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X1), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 2, "x2", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X2), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 3, "x3", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X3), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 4, "x4", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X4), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 5, "x5", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X5), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 6, "x6", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X6), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 7, "x7", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X7), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 8, "x8", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X8), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 9, "x9", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X9), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 10, "x10", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X10), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 11, "x11", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X11), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 12, "x12", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X12), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 13, "x13", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X13), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 14, "x14", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X14), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 15, "x15", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X15), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 16, "x16", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X16), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 17, "x17", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X17), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 18, "x18", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X18), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 19, "x19", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X19), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 20, "x20", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X20), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 21, "x21", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X21), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 22, "x22", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X22), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 23, "x23", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X23), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 24, "x24", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X24), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 25, "x25", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X25), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 26, "x26", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X26), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 27, "x27", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X27), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 28, "x28", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X28), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 29, "x29", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X29), dbg_itype_unsigned_long_int},
|
||
|
|
{CV_ARM64_X0 + 30, "x30", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, X30), 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},
|
||
|
|
{CV_ARM64_PSTATE, "pstate", (DWORD_PTR*)FIELD_OFFSET(CONTEXT, PState), dbg_itype_unsigned_long_int},
|
||
|
|
{0, NULL, 0, dbg_itype_none}
|
||
|
|
};
|
||
|
|
|
||
|
|
static unsigned be_arm64_is_step_over_insn(const void* insn)
|
||
|
|
{
|
||
|
|
dbg_printf("be_arm64_is_step_over_insn: not done\n");
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
static unsigned be_arm64_is_function_return(const void* insn)
|
||
|
|
{
|
||
|
|
dbg_printf("be_arm64_is_function_return: not done\n");
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
static unsigned be_arm64_is_break_insn(const void* insn)
|
||
|
|
{
|
||
|
|
dbg_printf("be_arm64_is_break_insn: not done\n");
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
static unsigned be_arm64_is_func_call(const void* insn, ADDRESS64* callee)
|
||
|
|
{
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
static unsigned be_arm64_is_jump(const void* insn, ADDRESS64* jumpee)
|
||
|
|
{
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
static unsigned be_arm64_insert_Xpoint(HANDLE hProcess, const struct be_process_io* pio,
|
||
|
|
CONTEXT* 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 0;
|
||
|
|
if (!pio->read(hProcess, addr, val, 4, &sz) || sz != 4) return 0;
|
||
|
|
default:
|
||
|
|
dbg_printf("Unknown/unsupported bp type %c\n", type);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static unsigned be_arm64_remove_Xpoint(HANDLE hProcess, const struct be_process_io* pio,
|
||
|
|
CONTEXT* 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 0;
|
||
|
|
if (!pio->write(hProcess, addr, &val, 4, &sz) || sz == 4) return 0;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
dbg_printf("Unknown/unsupported bp type %c\n", type);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static unsigned be_arm64_is_watchpoint_set(const CONTEXT* ctx, unsigned idx)
|
||
|
|
{
|
||
|
|
dbg_printf("be_arm64_is_watchpoint_set: not done\n");
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void be_arm64_clear_watchpoint(CONTEXT* ctx, unsigned idx)
|
||
|
|
{
|
||
|
|
dbg_printf("be_arm64_clear_watchpoint: not done\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
static int be_arm64_adjust_pc_for_break(CONTEXT* ctx, BOOL way)
|
||
|
|
{
|
||
|
|
if (way)
|
||
|
|
{
|
||
|
|
ctx->Pc -= 4;
|
||
|
|
return -4;
|
||
|
|
}
|
||
|
|
ctx->Pc += 4;
|
||
|
|
return 4;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int be_arm64_fetch_integer(const struct dbg_lvalue* lvalue, unsigned size,
|
||
|
|
unsigned ext_sign, LONGLONG* ret)
|
||
|
|
{
|
||
|
|
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 (ext_sign && size < 8 && (*ret >> (size * 8 - 1)) != 0)
|
||
|
|
{
|
||
|
|
ULONGLONG neg = -1;
|
||
|
|
*ret |= neg << (size * 8);
|
||
|
|
}
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int be_arm64_fetch_float(const struct dbg_lvalue* lvalue, unsigned size,
|
||
|
|
long double* ret)
|
||
|
|
{
|
||
|
|
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 int be_arm64_store_integer(const struct dbg_lvalue* lvalue, unsigned size,
|
||
|
|
unsigned is_signed, LONGLONG val)
|
||
|
|
{
|
||
|
|
/* 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");
|
||
|
|
}
|
||
|
|
|
||
|
|
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,
|
||
|
|
};
|
||
|
|
#endif
|