From: teawater <teawater@gmail.com>
To: "gdb-patches@sourceware.org" <gdb-patches@sourceware.org>
Subject: [RFA] Process record and replay, 8/10
Date: Thu, 06 Nov 2008 07:51:00 -0000 [thread overview]
Message-ID: <daef60380811052350v3232a91ep6241e687f2f18be@mail.gmail.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 1070 bytes --]
This patch add code to make I386 architecture support process record and replay.
2008-11-06 Hui Zhu <teawater@gmail.com>
I386 architecture process record and replay support.
* i386-tdep.c (PREFIX_REPZ, PREFIX_REPNZ, PREFIX_LOCK,
PREFIX_DATA, PREFIX_ADDR): New macros. Help decode the I386
instruction.
(aflag, dflag, override, modrm, mod, reg, rm, ot,
i386_record_pc): New variables. Ditto.
(i386_record_modrm, i386_record_lea_modrm_addr,
i386_record_lea_modrm): New functions. Ditto.
(i386_process_record): New function. Parse the instruction in
address "addr" and record the values of registers and memory
that will be change in this instruction.
(i386_gdbarch_init): Set "i386_process_record" to GDBARCH
"process_record" interface.
* i386-tdep.h (gdbarch_tdep): New function pointers
"i386_intx80_record" and "i386_sysenter_record" that point to
the function can record "intx80" and "sysenter" execute log.
i386-tdep.c | 2706 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
i386-tdep.h | 3
2 files changed, 2709 insertions(+)
[-- Attachment #2: i386-tdep.txt --]
[-- Type: text/plain, Size: 49766 bytes --]
--- a/i386-tdep.c
+++ b/i386-tdep.c
@@ -49,6 +49,9 @@
#include "i386-tdep.h"
#include "i387-tdep.h"
+#include "record.h"
+#include <stdint.h>
+
/* Register names. */
static char *i386_register_names[] =
@@ -2638,6 +2641,2707 @@ i386_skip_permanent_breakpoint (struct r
}
+#define PREFIX_REPZ 0x01
+#define PREFIX_REPNZ 0x02
+#define PREFIX_LOCK 0x04
+#define PREFIX_DATA 0x08
+#define PREFIX_ADDR 0x10
+
+/* operand size */
+enum
+{
+ OT_BYTE = 0,
+ OT_WORD,
+ OT_LONG,
+};
+
+/* i386 arith/logic operations */
+enum
+{
+ OP_ADDL,
+ OP_ORL,
+ OP_ADCL,
+ OP_SBBL,
+ OP_ANDL,
+ OP_SUBL,
+ OP_XORL,
+ OP_CMPL,
+};
+
+static int aflag = 1;
+static int dflag = 1;
+static int override = 0;
+static uint8_t modrm;
+static uint8_t mod, reg, rm;
+static int ot;
+static CORE_ADDR i386_record_pc;
+
+/* Parse "modrm" part in current memory address that i386_record_pc point to.
+ Return -1 if something wrong. */
+static int
+i386_record_modrm (void)
+{
+ if (target_read_memory (i386_record_pc, &modrm, 1))
+ {
+ printf_unfiltered (_("Process record: read memeory 0x%s error.\n"),
+ paddr_nz (i386_record_pc));
+ return (-1);
+ }
+ i386_record_pc++;
+ mod = (modrm >> 6) & 3;
+ reg = (modrm >> 3) & 7;
+ rm = modrm & 7;
+
+ return (0);
+}
+
+/* Get the memory address that current instruction write to and set it to
+ the argument "addr".
+ Return -1 if something wrong. */
+static int
+i386_record_lea_modrm_addr (uint32_t * addr)
+{
+ uint8_t tmpu8;
+ uint16_t tmpu16;
+ uint32_t tmpu32;
+
+ *addr = 0;
+ if (aflag)
+ {
+ /* 32 bits */
+ int havesib = 0;
+ uint8_t scale = 0;
+ uint8_t index = 0;
+ uint8_t base = rm;
+
+ if (base == 4)
+ {
+ havesib = 1;
+ if (target_read_memory (i386_record_pc, &tmpu8, 1))
+ {
+ printf_unfiltered (_("Process record: read memeory 0x%s error.\n"),
+ paddr_nz (i386_record_pc));
+ return (-1);
+ }
+ i386_record_pc++;
+ scale = (tmpu8 >> 6) & 3;
+ index = ((tmpu8 >> 3) & 7);
+ base = (tmpu8 & 7);
+ }
+
+ switch (mod)
+ {
+ case 0:
+ if ((base & 7) == 5)
+ {
+ base = 0xff;
+ if (target_read_memory (i386_record_pc, (gdb_byte *) addr, 4))
+ {
+ printf_unfiltered (_("Process record: read memeory 0x%s error.\n"),
+ paddr_nz (i386_record_pc));
+ return (-1);
+ }
+ i386_record_pc += 4;
+ }
+ else
+ {
+ *addr = 0;
+ }
+ break;
+ case 1:
+ if (target_read_memory (i386_record_pc, &tmpu8, 1))
+ {
+ printf_unfiltered (_("Process record: read memeory 0x%s error.\n"),
+ paddr_nz (i386_record_pc));
+ return (-1);
+ }
+ i386_record_pc++;
+ *addr = (int8_t) tmpu8;
+ break;
+ case 2:
+ if (target_read_memory (i386_record_pc, (gdb_byte *) addr, 4))
+ {
+ printf_unfiltered (_("Process record: read memeory 0x%s error.\n"),
+ paddr_nz (i386_record_pc));
+ return (-1);
+ }
+ i386_record_pc += 4;
+ break;
+ }
+
+ if (base != 0xff)
+ {
+ regcache_raw_read (record_regcache, base, (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ }
+
+ /* XXX: index == 4 is always invalid */
+ if (havesib && (index != 4 || scale != 0))
+ {
+ regcache_raw_read (record_regcache, index, (gdb_byte *) & tmpu32);
+ *addr += tmpu32 << scale;
+ }
+ }
+ else
+ {
+ /* 16 bits */
+ switch (mod)
+ {
+ case 0:
+ if (rm == 6)
+ {
+ if (target_read_memory
+ (i386_record_pc, (gdb_byte *) & tmpu16, 2))
+ {
+ printf_unfiltered (_("Process record: read memeory 0x%s error.\n"),
+ paddr_nz (i386_record_pc));
+ return (-1);
+ }
+ i386_record_pc += 2;
+ *addr = (int16_t) tmpu16;
+ rm = 0;
+ goto no_rm;
+ }
+ else
+ {
+ *addr = 0;
+ }
+ break;
+ case 1:
+ if (target_read_memory (i386_record_pc, &tmpu8, 1))
+ {
+ printf_unfiltered (_("Process record: read memeory 0x%s error.\n"),
+ paddr_nz (i386_record_pc));
+ return (-1);
+ }
+ i386_record_pc++;
+ *addr = (int8_t) tmpu8;
+ break;
+ case 2:
+ if (target_read_memory (i386_record_pc, (gdb_byte *) & tmpu16, 2))
+ {
+ printf_unfiltered (_("Process record: read memeory 0x%s error.\n"),
+ paddr_nz (i386_record_pc));
+ return (-1);
+ }
+ i386_record_pc += 2;
+ *addr = (int16_t) tmpu16;
+ break;
+ }
+
+ switch (rm)
+ {
+ case 0:
+ regcache_raw_read (record_regcache, I386_EBX_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ regcache_raw_read (record_regcache, I386_ESI_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ case 1:
+ regcache_raw_read (record_regcache, I386_EBX_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ regcache_raw_read (record_regcache, I386_EDI_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ case 2:
+ regcache_raw_read (record_regcache, I386_EBP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ regcache_raw_read (record_regcache, I386_ESI_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ case 3:
+ regcache_raw_read (record_regcache, I386_EBP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ regcache_raw_read (record_regcache, I386_EDI_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ case 4:
+ regcache_raw_read (record_regcache, I386_ESI_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ case 5:
+ regcache_raw_read (record_regcache, I386_EDI_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ case 6:
+ regcache_raw_read (record_regcache, I386_EBP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ case 7:
+ regcache_raw_read (record_regcache, I386_EBX_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ }
+ *addr &= 0xffff;
+ }
+
+no_rm:
+ return (0);
+}
+
+/* Record the value of the memory that willbe changed in current instruction
+ to "record_arch_list".
+ Return -1 if something wrong. */
+static int
+i386_record_lea_modrm (void)
+{
+ uint32_t addr;
+
+ if (override)
+ {
+ if (record_debug)
+ printf_unfiltered (_
+ ("Process record ignores the memory change of instruction in address 0x%s because it can't get the value of the segment register.\n"),
+ paddr_nz (i386_record_pc));
+ return (0);
+ }
+
+ if (i386_record_lea_modrm_addr (&addr))
+ {
+ return (-1);
+ }
+
+ if (record_arch_list_add_mem (addr, 1 << ot))
+ {
+ return (-1);
+ }
+
+ return (0);
+}
+
+/* Parse the current instruction and record the values of the registers and
+ memory that will be changed in current instruction to "record_arch_list".
+ Return -1 if something wrong. */
+static int
+i386_process_record (struct gdbarch *gdbarch, CORE_ADDR addr)
+{
+ int prefixes = 0;
+ uint8_t tmpu8;
+ uint16_t tmpu16;
+ uint32_t tmpu32;
+ uint32_t opcode;
+
+ i386_record_pc = addr;
+ aflag = 1;
+ dflag = 1;
+ override = 0;
+
+ if (record_debug > 1)
+ {
+ fprintf_unfiltered (gdb_stdlog, "Process record: i386_record pc = 0x%s\n",
+ paddr_nz (i386_record_pc));
+ }
+
+ /* prefixes */
+ while (1)
+ {
+ if (target_read_memory (i386_record_pc, &tmpu8, 1))
+ {
+ printf_unfiltered (_("Process record: read memeory 0x%s error.\n"),
+ paddr_nz (i386_record_pc));
+ return (-1);
+ }
+ i386_record_pc++;
+ switch (tmpu8)
+ {
+ case 0xf3:
+ prefixes |= PREFIX_REPZ;
+ break;
+ case 0xf2:
+ prefixes |= PREFIX_REPNZ;
+ break;
+ case 0xf0:
+ prefixes |= PREFIX_LOCK;
+ break;
+ case 0x2e:
+ override = I386_CS_REGNUM;
+ break;
+ case 0x36:
+ override = I386_SS_REGNUM;
+ break;
+ case 0x3e:
+ override = I386_DS_REGNUM;
+ break;
+ case 0x26:
+ override = I386_ES_REGNUM;
+ break;
+ case 0x64:
+ override = I386_FS_REGNUM;
+ break;
+ case 0x65:
+ override = I386_GS_REGNUM;
+ break;
+ case 0x66:
+ prefixes |= PREFIX_DATA;
+ break;
+ case 0x67:
+ prefixes |= PREFIX_ADDR;
+ break;
+ default:
+ goto out_prefixes;
+ break;
+ }
+ }
+out_prefixes:
+ if (prefixes & PREFIX_DATA)
+ {
+ dflag ^= 1;
+ }
+ if (prefixes & PREFIX_ADDR)
+ {
+ aflag ^= 1;
+ }
+
+ /* now check op code */
+ opcode = (uint32_t) tmpu8;
+reswitch:
+ switch (opcode)
+ {
+ case 0x0f:
+ if (target_read_memory (i386_record_pc, &tmpu8, 1))
+ {
+ printf_unfiltered (_("Process record: read memeory 0x%s error.\n"),
+ paddr_nz (i386_record_pc));
+ return (-1);
+ }
+ i386_record_pc++;
+ opcode = (uint16_t) tmpu8 | 0x0f00;
+ goto reswitch;
+ break;
+
+ /* arith & logic */
+ case 0x00 ... 0x05:
+ case 0x08 ... 0x0d:
+ case 0x10 ... 0x15:
+ case 0x18 ... 0x1d:
+ case 0x20 ... 0x25:
+ case 0x28 ... 0x2d:
+ case 0x30 ... 0x35:
+ case 0x38 ... 0x3d:
+ if (((opcode >> 3) & 7) != OP_CMPL)
+ {
+ if ((opcode & 1) == 0)
+ {
+ ot = OT_BYTE;
+ }
+ else
+ {
+ ot = dflag + OT_WORD;
+ }
+
+ switch ((opcode >> 1) & 3)
+ {
+ /* OP Ev, Gv */
+ case 0:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (mod != 3)
+ {
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (ot == OT_BYTE)
+ {
+ rm &= 0x3;
+ }
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ break;
+ /* OP Gv, Ev */
+ case 1:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (ot == OT_BYTE)
+ {
+ reg &= 0x3;
+ }
+ if (record_arch_list_add_reg (reg))
+ {
+ return (-1);
+ }
+ break;
+ /* OP A, Iv */
+ case 2:
+ if (record_arch_list_add_reg (I386_EAX_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+ }
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* GRP1 */
+ case 0x80 ... 0x83:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+
+ if (reg != OP_CMPL)
+ {
+ if ((opcode & 1) == 0)
+ {
+ ot = OT_BYTE;
+ }
+ else
+ {
+ ot = dflag + OT_WORD;
+ }
+
+ if (mod != 3)
+ {
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* inv */
+ case 0x40 ... 0x47:
+ /* dec */
+ case 0x48 ... 0x4f:
+ if (record_arch_list_add_reg (opcode & 7))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* GRP3 */
+ case 0xf6:
+ case 0xf7:
+ if ((opcode & 1) == 0)
+ {
+ ot = OT_BYTE;
+ }
+ else
+ {
+ ot = dflag + OT_WORD;
+ }
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+
+ switch (reg)
+ {
+ /* test */
+ case 0:
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+ /* not */
+ case 2:
+ if (mod != 3)
+ {
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (ot == OT_BYTE)
+ {
+ rm &= 0x3;
+ }
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ break;
+ /* neg */
+ case 3:
+ if (mod != 3)
+ {
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (ot == OT_BYTE)
+ {
+ rm &= 0x3;
+ }
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+ /* mul */
+ case 4:
+ /* imul */
+ case 5:
+ /* div */
+ case 6:
+ /* idiv */
+ case 7:
+ if (record_arch_list_add_reg (I386_EAX_REGNUM))
+ {
+ return (-1);
+ }
+ if (ot != OT_BYTE)
+ {
+ if (record_arch_list_add_reg (I386_EDX_REGNUM))
+ {
+ return (-1);
+ }
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+ default:
+ i386_record_pc -= 2;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ break;
+ }
+ break;
+
+ /* GRP4 */
+ case 0xfe:
+ /* GRP5 */
+ case 0xff:
+ if ((opcode & 1) == 0)
+ {
+ ot = OT_BYTE;
+ }
+ else
+ {
+ ot = dflag + OT_WORD;
+ }
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (reg >= 2 && opcode == 0xfe)
+ {
+ i386_record_pc -= 2;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ }
+
+ switch (reg)
+ {
+ /* inc */
+ case 0:
+ /* dec */
+ case 1:
+ if (mod != 3)
+ {
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (ot == OT_BYTE)
+ {
+ rm &= 0x3;
+ }
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+ /* call */
+ case 2:
+ /* push */
+ case 6:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ regcache_raw_read (record_regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (dflag + 1)), (1 << (dflag + 1))))
+ {
+ return (-1);
+ }
+ break;
+ /* lcall */
+ case 3:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_CS_REGNUM))
+ {
+ return (-1);
+ }
+ regcache_raw_read (record_regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (dflag + 2)), (1 << (dflag + 2))))
+ {
+ return (-1);
+ }
+ break;
+ /* jmp */
+ case 4:
+ /* ljmp */
+ case 5:
+ break;
+ default:
+ i386_record_pc -= 2;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ break;
+ }
+ break;
+
+ /* test */
+ case 0x84:
+ case 0x85:
+ case 0xa8:
+ case 0xa9:
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* CWDE/CBW */
+ case 0x98:
+ if (record_arch_list_add_reg (I386_EAX_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* CDQ/CWD */
+ case 0x99:
+ if (record_arch_list_add_reg (I386_EAX_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_EDX_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* imul */
+ case 0x0faf:
+ case 0x69:
+ case 0x6b:
+ ot = dflag + OT_WORD;
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (ot == OT_BYTE)
+ {
+ reg &= 0x3;
+ }
+ if (record_arch_list_add_reg (reg))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* xadd */
+ case 0x0fc0:
+ case 0x0fc1:
+ if ((opcode & 1) == 0)
+ {
+ ot = OT_BYTE;
+ }
+ else
+ {
+ ot = dflag + OT_WORD;
+ }
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (mod == 3)
+ {
+ if (ot == OT_BYTE)
+ {
+ reg &= 0x3;
+ }
+ if (record_arch_list_add_reg (reg))
+ {
+ return (-1);
+ }
+ if (ot == OT_BYTE)
+ {
+ rm &= 0x3;
+ }
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ if (ot == OT_BYTE)
+ {
+ reg &= 0x3;
+ }
+ if (record_arch_list_add_reg (reg))
+ {
+ return (-1);
+ }
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* cmpxchg */
+ case 0x0fb0:
+ case 0x0fb1:
+ if ((opcode & 1) == 0)
+ {
+ ot = OT_BYTE;
+ }
+ else
+ {
+ ot = dflag + OT_WORD;
+ }
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (mod == 3)
+ {
+ if (record_arch_list_add_reg (I386_EAX_REGNUM))
+ {
+ return (-1);
+ }
+ if (ot == OT_BYTE)
+ {
+ reg &= 0x3;
+ }
+ if (record_arch_list_add_reg (reg))
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (record_arch_list_add_reg (I386_EAX_REGNUM))
+ {
+ return (-1);
+ }
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* cmpxchg8b */
+ case 0x0fc7:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (mod == 3)
+ {
+ i386_record_pc -= 2;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ }
+ if (record_arch_list_add_reg (I386_EAX_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_EDX_REGNUM))
+ {
+ return (-1);
+ }
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* push */
+ case 0x50 ... 0x57:
+ case 0x68:
+ case 0x6a:
+ /* push es */
+ case 0x06:
+ /* push cs */
+ case 0x0e:
+ /* push ss */
+ case 0x16:
+ /* push ds */
+ case 0x1e:
+ /* push fs */
+ case 0x0fa0:
+ /* push gs */
+ case 0x0fa8:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ regcache_raw_read (record_regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (dflag + 1)), (1 << (dflag + 1))))
+ {
+ return (-1);
+ }
+ break;
+
+ /* pop */
+ case 0x58 ... 0x5f:
+ ot = dflag + OT_WORD;
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ if (ot == OT_BYTE)
+ {
+ opcode &= 0x3;
+ }
+ if (record_arch_list_add_reg (opcode & 0x7))
+ {
+ return (-1);
+ }
+ break;
+
+ /* pusha */
+ case 0x60:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ regcache_raw_read (record_regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (dflag + 4)), (1 << (dflag + 4))))
+ {
+ return (-1);
+ }
+ break;
+
+ /* popa */
+ case 0x61:
+ for (tmpu8 = I386_EAX_REGNUM; tmpu8 <= I386_EDI_REGNUM; tmpu8++)
+ {
+ if (record_arch_list_add_reg (tmpu8))
+ {
+ return (-1);
+ }
+ }
+ break;
+
+ /* pop */
+ case 0x8f:
+ ot = dflag + OT_WORD;
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (mod == 3)
+ {
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* enter */
+ case 0xc8:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_EBP_REGNUM))
+ {
+ return (-1);
+ }
+ regcache_raw_read (record_regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (dflag + 1)), (1 << (dflag + 1))))
+ {
+ return (-1);
+ }
+ break;
+
+ /* leave */
+ case 0xc9:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_EBP_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* pop es */
+ case 0x07:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_ES_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* pop ss */
+ case 0x17:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_SS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* pop ds */
+ case 0x1f:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_DS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* pop fs */
+ case 0x0fa1:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_FS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* pop gs */
+ case 0x0fa9:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_GS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* mov */
+ case 0x88:
+ case 0x89:
+ case 0xc6:
+ case 0xc7:
+ if ((opcode & 1) == 0)
+ {
+ ot = OT_BYTE;
+ }
+ else
+ {
+ ot = dflag + OT_WORD;
+ }
+
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+
+ if (mod != 3)
+ {
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (ot == OT_BYTE)
+ {
+ rm &= 0x3;
+ }
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+ /* mov */
+ case 0x8a:
+ case 0x8b:
+ if ((opcode & 1) == 0)
+ {
+ ot = OT_BYTE;
+ }
+ else
+ {
+ ot = dflag + OT_WORD;
+ }
+
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+
+ if (ot == OT_BYTE)
+ {
+ reg &= 0x3;
+ }
+ if (record_arch_list_add_reg (reg))
+ {
+ return (-1);
+ }
+
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* mov seg */
+ case 0x8e:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+
+ switch (reg)
+ {
+ case 0:
+ tmpu8 = I386_ES_REGNUM;
+ break;
+ case 2:
+ tmpu8 = I386_SS_REGNUM;
+ break;
+ case 3:
+ tmpu8 = I386_DS_REGNUM;
+ break;
+ case 4:
+ tmpu8 = I386_FS_REGNUM;
+ break;
+ case 5:
+ tmpu8 = I386_GS_REGNUM;
+ break;
+ default:
+ i386_record_pc -= 2;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ break;
+ }
+ if (record_arch_list_add_reg (tmpu8))
+ {
+ return (-1);
+ }
+
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* mov seg */
+ case 0x8c:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (reg > 5)
+ {
+ i386_record_pc -= 2;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ }
+
+ if (mod == 3)
+ {
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ ot = OT_WORD;
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* movzbS */
+ case 0x0fb6:
+ /* movzwS */
+ case 0x0fb7:
+ /* movsbS */
+ case 0x0fbe:
+ /* movswS */
+ case 0x0fbf:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (reg))
+ {
+ return (-1);
+ }
+ break;
+
+ /* lea */
+ case 0x8d:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (mod == 3)
+ {
+ i386_record_pc -= 2;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ }
+
+ ot = dflag;
+ if (ot == OT_BYTE)
+ {
+ reg &= 0x3;
+ }
+ if (record_arch_list_add_reg (reg))
+ {
+ return (-1);
+ }
+ break;
+
+ /* mov EAX */
+ case 0xa0:
+ case 0xa1:
+ /* xlat */
+ case 0xd7:
+ if (record_arch_list_add_reg (I386_EAX_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* mov EAX */
+ case 0xa2:
+ case 0xa3:
+ {
+ uint32_t addr;
+
+ if (override)
+ {
+ if (record_debug)
+ printf_unfiltered (_
+ ("Process record ignores the memory change of instruction in address 0x%s because it can't get the value of the segment register.\n"),
+ paddr_nz (i386_record_pc));
+ }
+ else
+ {
+ if ((opcode & 1) == 0)
+ {
+ ot = OT_BYTE;
+ }
+ else
+ {
+ ot = dflag + OT_WORD;
+ }
+ if (aflag)
+ {
+ if (target_read_memory
+ (i386_record_pc, (gdb_byte *) & addr, 4))
+ {
+ printf_unfiltered (_
+ ("Process record: read memeory 0x%s error.\n"),
+ paddr_nz (i386_record_pc));
+ return (-1);
+ }
+ i386_record_pc += 4;
+ }
+ else
+ {
+ if (target_read_memory
+ (i386_record_pc, (gdb_byte *) & tmpu16, 4))
+ {
+ printf_unfiltered (_
+ ("Process record: read memeory 0x%s error.\n"),
+ paddr_nz (i386_record_pc));
+ return (-1);
+ }
+ i386_record_pc += 2;
+ addr = tmpu16;
+ }
+ if (record_arch_list_add_mem (addr, 1 << ot))
+ {
+ return (-1);
+ }
+ }
+ }
+ break;
+
+ /* mov R, Ib */
+ case 0xb0 ... 0xb7:
+ if (record_arch_list_add_reg ((opcode & 0x7) & 0x3))
+ {
+ return (-1);
+ }
+ break;
+
+ /* mov R, Iv */
+ case 0xb8 ... 0xbf:
+ if (record_arch_list_add_reg (opcode & 0x7))
+ {
+ return (-1);
+ }
+ break;
+
+ /* xchg R, EAX */
+ case 0x91 ... 0x97:
+ if (record_arch_list_add_reg (I386_EAX_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (opcode & 0x7))
+ {
+ return (-1);
+ }
+ break;
+
+ /* xchg Ev, Gv */
+ case 0x86:
+ case 0x87:
+ if ((opcode & 1) == 0)
+ {
+ ot = OT_BYTE;
+ }
+ else
+ {
+ ot = dflag + OT_WORD;
+ }
+
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+
+ if (mod == 3)
+ {
+ if (ot == OT_BYTE)
+ {
+ rm &= 0x3;
+ }
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+
+ if (ot == OT_BYTE)
+ {
+ reg &= 0x3;
+ }
+ if (record_arch_list_add_reg (reg))
+ {
+ return (-1);
+ }
+ break;
+
+ /* les Gv */
+ case 0xc4:
+ /* lds Gv */
+ case 0xc5:
+ /* lss Gv */
+ case 0x0fb2:
+ /* lfs Gv */
+ case 0x0fb4:
+ /* lgs Gv */
+ case 0x0fb5:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (mod == 3)
+ {
+ if (opcode > 0xff)
+ {
+ i386_record_pc -= 3;
+ }
+ else
+ {
+ i386_record_pc -= 2;
+ }
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ }
+
+ switch (opcode)
+ {
+ /* les Gv */
+ case 0xc4:
+ tmpu8 = I386_ES_REGNUM;
+ break;
+ /* lds Gv */
+ case 0xc5:
+ tmpu8 = I386_DS_REGNUM;
+ break;
+ /* lss Gv */
+ case 0x0fb2:
+ tmpu8 = I386_SS_REGNUM;
+ break;
+ /* lfs Gv */
+ case 0x0fb4:
+ tmpu8 = I386_FS_REGNUM;
+ break;
+ /* lgs Gv */
+ case 0x0fb5:
+ tmpu8 = I386_GS_REGNUM;
+ break;
+ }
+ if (record_arch_list_add_reg (tmpu8))
+ {
+ return (-1);
+ }
+
+ if (record_arch_list_add_reg (reg))
+ {
+ return (-1);
+ }
+ break;
+
+ /* shifts */
+ case 0xc0:
+ case 0xc1:
+ case 0xd0:
+ case 0xd1:
+ case 0xd2:
+ case 0xd3:
+ if ((opcode & 1) == 0)
+ {
+ ot = OT_BYTE;
+ }
+ else
+ {
+ ot = dflag + OT_WORD;
+ }
+
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+
+ if (mod != 3 && (opcode == 0xd2 || opcode == 0xd3))
+ {
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (ot == OT_BYTE)
+ {
+ rm &= 0x3;
+ }
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ case 0x0fa4:
+ case 0x0fa5:
+ case 0x0fac:
+ case 0x0fad:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (mod == 3)
+ {
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+ break;
+
+ /* floats */
+ /* It just record the memory change of instrcution. */
+ case 0xd8 ... 0xdf:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ reg |= ((opcode & 7) << 3);
+ if (mod != 3)
+ {
+ /* memory */
+ uint32_t addr;
+
+ if (i386_record_lea_modrm_addr (&addr))
+ {
+ return (-1);
+ }
+ switch (reg)
+ {
+ case 0x00 ... 0x07:
+ case 0x10 ... 0x17:
+ case 0x20 ... 0x27:
+ case 0x30 ... 0x37:
+ break;
+ case 0x08:
+ case 0x0a:
+ case 0x0b:
+ case 0x18 ... 0x1b:
+ case 0x28 ... 0x2b:
+ case 0x38 ... 0x3b:
+ switch (reg & 7)
+ {
+ case 0:
+ break;
+ case 1:
+ switch (reg >> 4)
+ {
+ case 0:
+ if (record_arch_list_add_mem (addr, 4))
+ {
+ return (-1);
+ }
+ break;
+ case 2:
+ if (record_arch_list_add_mem (addr, 8))
+ {
+ return (-1);
+ }
+ break;
+ case 3:
+ default:
+ if (record_arch_list_add_mem (addr, 2))
+ {
+ return (-1);
+ }
+ break;
+ }
+ break;
+ default:
+ switch (reg >> 4)
+ {
+ case 0:
+ case 1:
+ if (record_arch_list_add_mem (addr, 4))
+ {
+ return (-1);
+ }
+ break;
+ case 2:
+ if (record_arch_list_add_mem (addr, 8))
+ {
+ return (-1);
+ }
+ break;
+ case 3:
+ default:
+ if (record_arch_list_add_mem (addr, 2))
+ {
+ return (-1);
+ }
+ break;
+ }
+ break;
+ }
+ break;
+ case 0x0c:
+ case 0x0d:
+ case 0x1d:
+ case 0x2c:
+ case 0x3c:
+ case 0x3d:
+ break;
+ case 0x0e:
+ if (dflag)
+ {
+ if (record_arch_list_add_mem (addr, 28))
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (record_arch_list_add_mem (addr, 14))
+ {
+ return (-1);
+ }
+ }
+ break;
+ case 0x0f:
+ case 0x2f:
+ if (record_arch_list_add_mem (addr, 2))
+ {
+ return (-1);
+ }
+ break;
+ case 0x1f:
+ case 0x3e:
+ if (record_arch_list_add_mem (addr, 10))
+ {
+ return (-1);
+ }
+ break;
+ case 0x2e:
+ if (dflag)
+ {
+ if (record_arch_list_add_mem (addr, 28))
+ {
+ return (-1);
+ }
+ addr += 28;
+ }
+ else
+ {
+ if (record_arch_list_add_mem (addr, 14))
+ {
+ return (-1);
+ }
+ addr += 14;
+ }
+ if (record_arch_list_add_mem (addr, 80))
+ {
+ return (-1);
+ }
+ break;
+ case 0x3f:
+ if (record_arch_list_add_mem (addr, 8))
+ {
+ return (-1);
+ }
+ break;
+ default:
+ i386_record_pc -= 2;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ break;
+ }
+ }
+ break;
+
+ /* string ops */
+ /* movsS */
+ case 0xa4:
+ case 0xa5:
+ /* stosS */
+ case 0xaa:
+ case 0xab:
+ /* insS */
+ case 0x6c:
+ case 0x6d:
+ {
+ uint32_t addr;
+
+ if ((opcode & 1) == 0)
+ {
+ ot = OT_BYTE;
+ }
+ else
+ {
+ ot = dflag + OT_WORD;
+ }
+ if (opcode == 0xa4 || opcode == 0xa5)
+ {
+ if (record_arch_list_add_reg (I386_ESI_REGNUM))
+ {
+ return (-1);
+ }
+ }
+ if (record_arch_list_add_reg (I386_EDI_REGNUM))
+ {
+ return (-1);
+ }
+
+ regcache_raw_read (record_regcache, I386_EDI_REGNUM,
+ (gdb_byte *) & addr);
+ if (!aflag)
+ {
+ addr &= 0xffff;
+ /* addr += ((uint32_t)read_register (I386_ES_REGNUM)) << 4; */
+ if (record_debug)
+ printf_unfiltered (_
+ ("Process record ignores the memory change of instruction in address 0x%s because it can't get the value of the segment register.\n"),
+ paddr_nz (i386_record_pc));
+ }
+
+ if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ))
+ {
+ uint32_t count;
+
+ regcache_raw_read (record_regcache, I386_ECX_REGNUM,
+ (gdb_byte *) & count);
+ if (!aflag)
+ {
+ count &= 0xffff;
+ }
+
+ regcache_raw_read (record_regcache, I386_EFLAGS_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if ((tmpu32 >> 10) & 0x1)
+ {
+ addr -= (count - 1) * (1 << ot);
+ }
+
+ if (aflag)
+ {
+ if (record_arch_list_add_mem (addr, count * (1 << ot)))
+ {
+ return (-1);
+ }
+ }
+
+ if (record_arch_list_add_reg (I386_ECX_REGNUM))
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (aflag)
+ {
+ if (record_arch_list_add_mem (addr, 1 << ot))
+ {
+ return (-1);
+ }
+ }
+ }
+ }
+ break;
+
+ /* lodsS */
+ case 0xac:
+ case 0xad:
+ if (record_arch_list_add_reg (I386_EAX_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_ESI_REGNUM))
+ {
+ return (-1);
+ }
+ if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ))
+ {
+ if (record_arch_list_add_reg (I386_ECX_REGNUM))
+ {
+ return (-1);
+ }
+ }
+ break;
+
+ /* outsS */
+ case 0x6e:
+ case 0x6f:
+ if (record_arch_list_add_reg (I386_ESI_REGNUM))
+ {
+ return (-1);
+ }
+ if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ))
+ {
+ if (record_arch_list_add_reg (I386_ECX_REGNUM))
+ {
+ return (-1);
+ }
+ }
+ break;
+
+ /* scasS */
+ case 0xae:
+ case 0xaf:
+ if (record_arch_list_add_reg (I386_EDI_REGNUM))
+ {
+ return (-1);
+ }
+ if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ))
+ {
+ if (record_arch_list_add_reg (I386_ECX_REGNUM))
+ {
+ return (-1);
+ }
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* cmpsS */
+ case 0xa6:
+ case 0xa7:
+ if (record_arch_list_add_reg (I386_EDI_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_ESI_REGNUM))
+ {
+ return (-1);
+ }
+ if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ))
+ {
+ if (record_arch_list_add_reg (I386_ECX_REGNUM))
+ {
+ return (-1);
+ }
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* port I/O */
+ case 0xe4:
+ case 0xe5:
+ case 0xec:
+ case 0xed:
+ if (record_arch_list_add_reg (I386_EAX_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ case 0xe6:
+ case 0xe7:
+ case 0xee:
+ case 0xef:
+ break;
+
+ /* control */
+ /* ret im */
+ case 0xc2:
+ /* ret */
+ case 0xc3:
+ /* lret im */
+ case 0xca:
+ /* lret */
+ case 0xcb:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_CS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* iret */
+ case 0xcf:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_CS_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* call im */
+ case 0xe8:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ regcache_raw_read (record_regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (dflag + 1)), (1 << (dflag + 1))))
+ {
+ return (-1);
+ }
+ break;
+
+ /* lcall im */
+ case 0x9a:
+ if (record_arch_list_add_reg (I386_CS_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ regcache_raw_read (record_regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (dflag + 2)), (1 << (dflag + 2))))
+ {
+ return (-1);
+ }
+ break;
+
+ /* jmp im */
+ case 0xe9:
+ /* ljmp im */
+ case 0xea:
+ /* jmp Jb */
+ case 0xeb:
+ /* jcc Jb */
+ case 0x70 ... 0x7f:
+ /* jcc Jv */
+ case 0x0f80 ... 0x0f8f:
+ break;
+
+ /* setcc Gv */
+ case 0x0f90 ... 0x0f9f:
+ ot = OT_BYTE;
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (mod == 3)
+ {
+ if (record_arch_list_add_reg (rm & 0x3))
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+ break;
+
+ /* cmov Gv, Ev */
+ case 0x0f40 ... 0x0f4f:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (dflag == OT_BYTE)
+ {
+ reg &= 0x3;
+ }
+ if (record_arch_list_add_reg (reg & 0x3))
+ {
+ return (-1);
+ }
+ break;
+
+ /* flags */
+ /* pushf */
+ case 0x9c:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ regcache_raw_read (record_regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (dflag + 1)), (1 << (dflag + 1))))
+ {
+ return (-1);
+ }
+ break;
+
+ /* popf */
+ case 0x9d:
+ if (record_arch_list_add_reg (I386_ESP_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* sahf */
+ case 0x9e:
+ /* cmc */
+ case 0xf5:
+ /* clc */
+ case 0xf8:
+ /* stc */
+ case 0xf9:
+ /* cld */
+ case 0xfc:
+ /* std */
+ case 0xfd:
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* lahf */
+ case 0x9f:
+ if (record_arch_list_add_reg (I386_EAX_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* bit operations */
+ /* bt/bts/btr/btc Gv, im */
+ case 0x0fba:
+ /* bts */
+ case 0x0fab:
+ /* btr */
+ case 0x0fb3:
+ /* btc */
+ case 0x0fbb:
+ ot = dflag + OT_WORD;
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (reg < 4)
+ {
+ i386_record_pc -= 3;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ }
+ reg -= 4;
+ if (reg != 0)
+ {
+ if (mod != 3)
+ {
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* bt Gv, Ev */
+ case 0x0fa3:
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* bsf */
+ case 0x0fbc:
+ /* bsr */
+ case 0x0fbd:
+ if (record_arch_list_add_reg (reg))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* bcd */
+ /* daa */
+ case 0x27:
+ /* das */
+ case 0x2f:
+ /* aaa */
+ case 0x37:
+ /* aas */
+ case 0x3f:
+ /* aam */
+ case 0xd4:
+ /* aad */
+ case 0xd5:
+ if (record_arch_list_add_reg (I386_EAX_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* misc */
+ /* nop */
+ case 0x90:
+ if (prefixes & PREFIX_LOCK)
+ {
+ i386_record_pc -= 1;
+ goto no_support;
+ }
+ break;
+
+ /* fwait */
+ /* XXX */
+ case 0x9b:
+ printf_unfiltered (_
+ ("Process record don't support instruction fwait.\n"));
+ i386_record_pc -= 1;
+ goto no_support;
+ break;
+
+ /* int3 */
+ /* XXX */
+ case 0xcc:
+ printf_unfiltered (_
+ ("Process record doesn't support instruction int3.\n"));
+ i386_record_pc -= 1;
+ goto no_support;
+ break;
+
+ /* int */
+ /* XXX */
+ case 0xcd:
+ {
+ int ret;
+ if (target_read_memory (i386_record_pc, &tmpu8, 1))
+ {
+ printf_unfiltered (_("Process record: read memeory 0x%s error.\n"),
+ paddr_nz (i386_record_pc));
+ return (-1);
+ }
+ i386_record_pc++;
+ if (tmpu8 != 0x80
+ || gdbarch_tdep (gdbarch)->i386_intx80_record == NULL)
+ {
+ printf_unfiltered (_
+ ("Process record doesn't support instruction int 0x%02x.\n"),
+ tmpu8);
+ i386_record_pc -= 2;
+ goto no_support;
+ }
+ ret = gdbarch_tdep (gdbarch)->i386_intx80_record ();
+ if (ret)
+ {
+ return (ret);
+ }
+ }
+ break;
+
+ /* into */
+ /* XXX */
+ case 0xce:
+ printf_unfiltered (_
+ ("Process record doesn't support instruction into.\n"));
+ i386_record_pc -= 1;
+ goto no_support;
+ break;
+
+ /* cli */
+ case 0xfa:
+ /* sti */
+ case 0xfb:
+ break;
+
+ /* bound */
+ case 0x62:
+ printf_unfiltered (_
+ ("Process record doesn't support instruction bound.\n"));
+ i386_record_pc -= 1;
+ goto no_support;
+ break;
+
+ /* bswap reg */
+ case 0x0fc8 ... 0x0fcf:
+ if (record_arch_list_add_reg (opcode & 7))
+ {
+ return (-1);
+ }
+ break;
+
+ /* salc */
+ case 0xd6:
+ if (record_arch_list_add_reg (I386_EAX_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* loopnz */
+ case 0xe0:
+ /* loopz */
+ case 0xe1:
+ /* loop */
+ case 0xe2:
+ /* jecxz */
+ case 0xe3:
+ if (record_arch_list_add_reg (I386_ECX_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* wrmsr */
+ case 0x0f30:
+ printf_unfiltered (_
+ ("Process record doesn't support instruction wrmsr.\n"));
+ i386_record_pc -= 2;
+ goto no_support;
+ break;
+
+ /* rdmsr */
+ case 0x0f32:
+ printf_unfiltered (_
+ ("Process record doesn't support instruction rdmsr.\n"));
+ i386_record_pc -= 2;
+ goto no_support;
+ break;
+
+ /* rdtsc */
+ case 0x0f31:
+ printf_unfiltered (_
+ ("Process record doesn't support instruction rdtsc.\n"));
+ i386_record_pc -= 2;
+ goto no_support;
+ break;
+
+ /* sysenter */
+ case 0x0f34:
+ {
+ int ret;
+ if (gdbarch_tdep (gdbarch)->i386_sysenter_record == NULL)
+ {
+ printf_unfiltered (_
+ ("Process record doesn't support instruction sysenter.\n"));
+ i386_record_pc -= 2;
+ goto no_support;
+ }
+ ret = gdbarch_tdep (gdbarch)->i386_sysenter_record ();
+ if (ret)
+ {
+ return (ret);
+ }
+ }
+ break;
+
+ /* sysexit */
+ case 0x0f35:
+ printf_unfiltered (_
+ ("Process record doesn't support instruction sysexit.\n"));
+ i386_record_pc -= 2;
+ goto no_support;
+ break;
+
+ /* cpuid */
+ case 0x0fa2:
+ if (record_arch_list_add_reg (I386_EAX_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_ECX_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_EDX_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_EBX_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* hlt */
+ case 0xf4:
+ printf_unfiltered (_
+ ("Process record doesn't support instruction hlt.\n"));
+ i386_record_pc -= 1;
+ goto no_support;
+ break;
+
+ case 0x0f00:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ switch (reg)
+ {
+ /* sldt */
+ case 0:
+ /* str */
+ case 1:
+ if (mod == 3)
+ {
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ ot = OT_WORD;
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+ break;
+ /* lldt */
+ case 2:
+ /* ltr */
+ case 3:
+ break;
+ /* verr */
+ case 4:
+ /* verw */
+ case 5:
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+ default:
+ i386_record_pc -= 3;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ break;
+ }
+ break;
+
+ case 0x0f01:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ switch (reg)
+ {
+ /* sgdt */
+ case 0:
+ {
+ uint32_t addr;
+
+ if (mod == 3)
+ {
+ i386_record_pc -= 3;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ }
+
+ if (override)
+ {
+ if (record_debug)
+ printf_unfiltered (_
+ ("Process record ignores the memory change of instruction in address 0x%s because it can't get the value of the segment register.\n"),
+ paddr_nz (i386_record_pc));
+error("3");
+ }
+ else
+ {
+ if (i386_record_lea_modrm_addr (&addr))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_mem (addr, 2))
+ {
+ return (-1);
+ }
+ addr += 2;
+ if (record_arch_list_add_mem (addr, 4))
+ {
+ return (-1);
+ }
+ }
+ }
+ break;
+ case 1:
+ if (mod == 3)
+ {
+ switch (rm)
+ {
+ /* monitor */
+ case 0:
+ break;
+ /* mwait */
+ case 1:
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+ default:
+ i386_record_pc -= 3;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ break;
+ }
+ }
+ else
+ {
+ /* sidt */
+ if (override)
+ {
+ if (record_debug)
+ printf_unfiltered (_
+ ("Process record ignores the memory change of instruction in address 0x%s because it can't get the value of the segment register.\n"),
+ paddr_nz (i386_record_pc));
+ }
+ else
+ {
+ uint32_t addr;
+
+ if (i386_record_lea_modrm_addr (&addr))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_mem (addr, 2))
+ {
+ return (-1);
+ }
+ addr += 2;
+ if (record_arch_list_add_mem (addr, 4))
+ {
+ return (-1);
+ }
+ }
+ }
+ break;
+ /* lgdt */
+ case 2:
+ /* lidt */
+ case 3:
+ /* invlpg */
+ case 7:
+ default:
+ if (mod == 3)
+ {
+ i386_record_pc -= 3;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ }
+ break;
+ /* smsw */
+ case 4:
+ if (mod == 3)
+ {
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ ot = OT_WORD;
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+ break;
+ /* lmsw */
+ case 6:
+ break;
+ }
+ break;
+
+ /* invd */
+ case 0x0f08:
+ /* wbinvd */
+ case 0x0f09:
+ break;
+
+ /* arpl */
+ case 0x63:
+ ot = dflag ? OT_LONG : OT_WORD;
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (mod != 3)
+ {
+ if (i386_record_lea_modrm ())
+ {
+ return (-1);
+ }
+ }
+ else
+ {
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ /* lar */
+ case 0x0f02:
+ /* lsl */
+ case 0x0f03:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (reg))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_reg (I386_EFLAGS_REGNUM))
+ {
+ return (-1);
+ }
+ break;
+
+ case 0x0f18:
+ break;
+
+ /* nop (multi byte) */
+ case 0x0f19 ... 0x0f1f:
+ break;
+
+ /* mov reg, crN */
+ case 0x0f20:
+ /* mov crN, reg */
+ case 0x0f22:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if ((modrm & 0xc0) != 0xc0)
+ {
+ i386_record_pc -= 2;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ }
+ switch (reg)
+ {
+ case 0:
+ case 2:
+ case 3:
+ case 4:
+ case 8:
+ if (opcode & 2)
+ {
+ }
+ else
+ {
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ break;
+ default:
+ i386_record_pc -= 2;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ break;
+ }
+ break;
+
+ /* mov reg, drN */
+ case 0x0f21:
+ /* mov drN, reg */
+ case 0x0f23:
+ if (i386_record_modrm ())
+ {
+ return (-1);
+ }
+ if ((modrm & 0xc0) != 0xc0 || reg == 4 || reg == 5 || reg >= 8)
+ {
+ i386_record_pc -= 2;
+ opcode = opcode << 8 | modrm;
+ goto no_support;
+ }
+ if (opcode & 2)
+ {
+ }
+ else
+ {
+ if (record_arch_list_add_reg (rm))
+ {
+ return (-1);
+ }
+ }
+ break;
+
+ /* clts */
+ case 0x0f06:
+ break;
+
+ /* MMX/SSE/SSE2/PNI support */
+ /* XXX */
+
+ default:
+ if (opcode > 0xff)
+ {
+ i386_record_pc -= 2;
+ }
+ else
+ {
+ i386_record_pc -= 1;
+ }
+ goto no_support;
+ break;
+ }
+
+/* In the future, Maybe still need to deal with need_dasm */
+ if (record_arch_list_add_reg (I386_EIP_REGNUM))
+ {
+ return (-1);
+ }
+ if (record_arch_list_add_end (0))
+ {
+ return (-1);
+ }
+
+ return (0);
+
+no_support:
+ printf_unfiltered (_
+ ("Process record doesn't support instruction 0x%02x at address 0x%s.\n"),
+ (unsigned int) (opcode), paddr_nz (i386_record_pc));
+ return (-1);
+}
+
\f
static struct gdbarch *
i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
@@ -2829,6 +5533,8 @@ i386_gdbarch_init (struct gdbarch_info i
set_gdbarch_skip_permanent_breakpoint (gdbarch,
i386_skip_permanent_breakpoint);
+ set_gdbarch_process_record (gdbarch, i386_process_record);
+
return gdbarch;
}
--- a/i386-tdep.h
+++ b/i386-tdep.h
@@ -106,6 +106,9 @@ struct gdbarch_tdep
/* ISA-specific data types. */
struct type *i386_mmx_type;
struct type *i386_sse_type;
+
+ int (*i386_intx80_record) (void);
+ int (*i386_sysenter_record) (void);
};
/* Floating-point registers. */
next reply other threads:[~2008-11-06 7:51 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-06 7:51 teawater [this message]
2008-11-06 17:40 ` Doug Evans
2008-11-07 2:02 ` teawater
2008-11-07 15:34 ` Eli Zaretskii
2008-11-10 14:41 ` teawater
2008-11-10 14:51 ` Andreas Schwab
2008-11-10 17:45 ` teawater
2008-11-14 16:28 ` Eli Zaretskii
2008-11-14 17:18 ` teawater
2008-11-07 18:43 ` Marc Khouzam
2008-11-07 19:03 ` Michael Snyder
2008-11-10 14:42 ` teawater
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