#include "i386-tdep.h"
#include "i387-tdep.h"
+#include "record.h"
+#include <stdint.h>
+
/* Register names. */
static char *i386_register_names[] =
}
-\f
-static struct gdbarch *
-i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
-{
- struct gdbarch_tdep *tdep;
- struct gdbarch *gdbarch;
-
- /* If there is already a candidate, use it. */
- arches = gdbarch_list_lookup_by_info (arches, &info);
- if (arches != NULL)
- return arches->gdbarch;
-
- /* Allocate space for the new architecture. */
- tdep = XCALLOC (1, struct gdbarch_tdep);
- gdbarch = gdbarch_alloc (&info, tdep);
-
- /* General-purpose registers. */
- tdep->gregset = NULL;
- tdep->gregset_reg_offset = NULL;
- tdep->gregset_num_regs = I386_NUM_GREGS;
- tdep->sizeof_gregset = 0;
+#define PREFIX_REPZ 0x01
+#define PREFIX_REPNZ 0x02
+#define PREFIX_LOCK 0x04
+#define PREFIX_DATA 0x08
+#define PREFIX_ADDR 0x10
- /* Floating-point registers. */
- tdep->fpregset = NULL;
- tdep->sizeof_fpregset = I387_SIZEOF_FSAVE;
+/* operand size */
+enum
+{
+ OT_BYTE = 0,
+ OT_WORD,
+ OT_LONG,
+};
- /* The default settings include the FPU registers, the MMX registers
- and the SSE registers. This can be overridden for a specific ABI
- by adjusting the members `st0_regnum', `mm0_regnum' and
- `num_xmm_regs' of `struct gdbarch_tdep', otherwise the registers
- will show up in the output of "info all-registers". Ideally we
- should try to autodetect whether they are available, such that we
- can prevent "info all-registers" from displaying registers that
- aren't available.
+/* i386 arith/logic operations */
+enum
+{
+ OP_ADDL,
+ OP_ORL,
+ OP_ADCL,
+ OP_SBBL,
+ OP_ANDL,
+ OP_SUBL,
+ OP_XORL,
+ OP_CMPL,
+};
- NOTE: kevinb/2003-07-13: ... if it's a choice between printing
- [the SSE registers] always (even when they don't exist) or never
- showing them to the user (even when they do exist), I prefer the
- former over the latter. */
+struct i386_record_s
+{
+ struct regcache *regcache;
+ CORE_ADDR addr;
+ int aflag;
+ int dflag;
+ int override;
+ uint8_t modrm;
+ uint8_t mod, reg, rm;
+ int ot;
+};
- tdep->st0_regnum = I386_ST0_REGNUM;
+/* Parse "modrm" part in current memory address that irp->addr point to
+ Return -1 if something wrong. */
- /* The MMX registers are implemented as pseudo-registers. Put off
- calculating the register number for %mm0 until we know the number
- of raw registers. */
- tdep->mm0_regnum = 0;
+static int
+i386_record_modrm (struct i386_record_s *irp)
+{
+ if (target_read_memory (irp->addr, &irp->modrm, 1))
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record: error reading memory at "
+ "addr 0x%s len = 1.\n"),
+ paddr_nz (irp->addr));
+ return -1;
+ }
+ irp->addr++;
+ irp->mod = (irp->modrm >> 6) & 3;
+ irp->reg = (irp->modrm >> 3) & 7;
+ irp->rm = irp->modrm & 7;
- /* I386_NUM_XREGS includes %mxcsr, so substract one. */
- tdep->num_xmm_regs = I386_NUM_XREGS - 1;
+ return 0;
+}
- tdep->jb_pc_offset = -1;
- tdep->struct_return = pcc_struct_return;
- tdep->sigtramp_start = 0;
- tdep->sigtramp_end = 0;
- tdep->sigtramp_p = i386_sigtramp_p;
- tdep->sigcontext_addr = NULL;
- tdep->sc_reg_offset = NULL;
- tdep->sc_pc_offset = -1;
- tdep->sc_sp_offset = -1;
+/* Get the memory address that current instruction write to and set it to
+ the argument "addr".
+ Return -1 if something wrong. */
- /* The format used for `long double' on almost all i386 targets is
- the i387 extended floating-point format. In fact, of all targets
- in the GCC 2.95 tree, only OSF/1 does it different, and insists
- on having a `long double' that's not `long' at all. */
- set_gdbarch_long_double_format (gdbarch, floatformats_i387_ext);
+static int
+i386_record_lea_modrm_addr (struct i386_record_s *irp, uint32_t * addr)
+{
+ uint8_t tmpu8;
+ uint16_t tmpu16;
+ uint32_t tmpu32;
- /* Although the i387 extended floating-point has only 80 significant
- bits, a `long double' actually takes up 96, probably to enforce
- alignment. */
- set_gdbarch_long_double_bit (gdbarch, 96);
+ *addr = 0;
+ if (irp->aflag)
+ {
+ /* 32 bits */
+ int havesib = 0;
+ uint8_t scale = 0;
+ uint8_t index = 0;
+ uint8_t base = irp->rm;
- /* The default ABI includes general-purpose registers,
- floating-point registers, and the SSE registers. */
- set_gdbarch_num_regs (gdbarch, I386_SSE_NUM_REGS);
- set_gdbarch_register_name (gdbarch, i386_register_name);
- set_gdbarch_register_type (gdbarch, i386_register_type);
+ if (base == 4)
+ {
+ havesib = 1;
+ if (target_read_memory (irp->addr, &tmpu8, 1))
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record: error reading memory "
+ "at addr 0x%s len = 1.\n"),
+ paddr_nz (irp->addr));
+ return -1;
+ }
+ irp->addr++;
+ scale = (tmpu8 >> 6) & 3;
+ index = ((tmpu8 >> 3) & 7);
+ base = (tmpu8 & 7);
+ }
- /* Register numbers of various important registers. */
- set_gdbarch_sp_regnum (gdbarch, I386_ESP_REGNUM); /* %esp */
- set_gdbarch_pc_regnum (gdbarch, I386_EIP_REGNUM); /* %eip */
- set_gdbarch_ps_regnum (gdbarch, I386_EFLAGS_REGNUM); /* %eflags */
- set_gdbarch_fp0_regnum (gdbarch, I386_ST0_REGNUM); /* %st(0) */
+ switch (irp->mod)
+ {
+ case 0:
+ if ((base & 7) == 5)
+ {
+ base = 0xff;
+ if (target_read_memory (irp->addr, (gdb_byte *) addr, 4))
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record: error reading "
+ "memory at addr 0x%s len = 4.\n"),
+ paddr_nz (irp->addr));
+ return -1;
+ }
+ irp->addr += 4;
+ }
+ else
+ {
+ *addr = 0;
+ }
+ break;
+ case 1:
+ if (target_read_memory (irp->addr, &tmpu8, 1))
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record: error reading memory "
+ "at addr 0x%s len = 1.\n"),
+ paddr_nz (irp->addr));
+ return -1;
+ }
+ irp->addr++;
+ *addr = (int8_t) tmpu8;
+ break;
+ case 2:
+ if (target_read_memory (irp->addr, (gdb_byte *) addr, 4))
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record: error reading memory "
+ "at addr 0x%s len = 4.\n"),
+ paddr_nz (irp->addr));
+ return -1;
+ }
+ irp->addr += 4;
+ break;
+ }
- /* NOTE: kettenis/20040418: GCC does have two possible register
- numbering schemes on the i386: dbx and SVR4. These schemes
- differ in how they number %ebp, %esp, %eflags, and the
- floating-point registers, and are implemented by the arrays
- dbx_register_map[] and svr4_dbx_register_map in
- gcc/config/i386.c. GCC also defines a third numbering scheme in
- gcc/config/i386.c, which it designates as the "default" register
- map used in 64bit mode. This last register numbering scheme is
- implemented in dbx64_register_map, and is used for AMD64; see
- amd64-tdep.c.
+ if (base != 0xff)
+ {
+ regcache_raw_read (irp->regcache, base, (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ }
- Currently, each GCC i386 target always uses the same register
- numbering scheme across all its supported debugging formats
- i.e. SDB (COFF), stabs and DWARF 2. This is because
- gcc/sdbout.c, gcc/dbxout.c and gcc/dwarf2out.c all use the
- DBX_REGISTER_NUMBER macro which is defined by each target's
- respective config header in a manner independent of the requested
- output debugging format.
+ /* XXX: index == 4 is always invalid */
+ if (havesib && (index != 4 || scale != 0))
+ {
+ regcache_raw_read (irp->regcache, index, (gdb_byte *) & tmpu32);
+ *addr += tmpu32 << scale;
+ }
+ }
+ else
+ {
+ /* 16 bits */
+ switch (irp->mod)
+ {
+ case 0:
+ if (irp->rm == 6)
+ {
+ if (target_read_memory
+ (irp->addr, (gdb_byte *) & tmpu16, 2))
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record: error reading "
+ "memory at addr 0x%s len = 2.\n"),
+ paddr_nz (irp->addr));
+ return -1;
+ }
+ irp->addr += 2;
+ *addr = (int16_t) tmpu16;
+ irp->rm = 0;
+ goto no_rm;
+ }
+ else
+ {
+ *addr = 0;
+ }
+ break;
+ case 1:
+ if (target_read_memory (irp->addr, &tmpu8, 1))
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record: error reading memory "
+ "at addr 0x%s len = 1.\n"),
+ paddr_nz (irp->addr));
+ return -1;
+ }
+ irp->addr++;
+ *addr = (int8_t) tmpu8;
+ break;
+ case 2:
+ if (target_read_memory (irp->addr, (gdb_byte *) & tmpu16, 2))
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record: error reading memory "
+ "at addr 0x%s len = 2.\n"),
+ paddr_nz (irp->addr));
+ return -1;
+ }
+ irp->addr += 2;
+ *addr = (int16_t) tmpu16;
+ break;
+ }
- This does not match the arrangement below, which presumes that
- the SDB and stabs numbering schemes differ from the DWARF and
- DWARF 2 ones. The reason for this arrangement is that it is
- likely to get the numbering scheme for the target's
- default/native debug format right. For targets where GCC is the
- native compiler (FreeBSD, NetBSD, OpenBSD, GNU/Linux) or for
- targets where the native toolchain uses a different numbering
- scheme for a particular debug format (stabs-in-ELF on Solaris)
- the defaults below will have to be overridden, like
- i386_elf_init_abi() does. */
+ switch (irp->rm)
+ {
+ case 0:
+ regcache_raw_read (irp->regcache, I386_EBX_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ regcache_raw_read (irp->regcache, I386_ESI_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ case 1:
+ regcache_raw_read (irp->regcache, I386_EBX_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ regcache_raw_read (irp->regcache, I386_EDI_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ case 2:
+ regcache_raw_read (irp->regcache, I386_EBP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ regcache_raw_read (irp->regcache, I386_ESI_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ case 3:
+ regcache_raw_read (irp->regcache, I386_EBP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ regcache_raw_read (irp->regcache, I386_EDI_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ case 4:
+ regcache_raw_read (irp->regcache, I386_ESI_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ case 5:
+ regcache_raw_read (irp->regcache, I386_EDI_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ case 6:
+ regcache_raw_read (irp->regcache, I386_EBP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ case 7:
+ regcache_raw_read (irp->regcache, I386_EBX_REGNUM,
+ (gdb_byte *) & tmpu32);
+ *addr += tmpu32;
+ break;
+ }
+ *addr &= 0xffff;
+ }
- /* Use the dbx register numbering scheme for stabs and COFF. */
- set_gdbarch_stab_reg_to_regnum (gdbarch, i386_dbx_reg_to_regnum);
- set_gdbarch_sdb_reg_to_regnum (gdbarch, i386_dbx_reg_to_regnum);
+no_rm:
+ return 0;
+}
- /* Use the SVR4 register numbering scheme for DWARF 2. */
- set_gdbarch_dwarf2_reg_to_regnum (gdbarch, i386_svr4_reg_to_regnum);
+/* Record the value of the memory that willbe changed in current instruction
+ to "record_arch_list".
+ Return -1 if something wrong. */
- /* We don't set gdbarch_stab_reg_to_regnum, since ECOFF doesn't seem to
- be in use on any of the supported i386 targets. */
+static int
+i386_record_lea_modrm (struct i386_record_s *irp)
+{
+ uint32_t addr;
- set_gdbarch_print_float_info (gdbarch, i387_print_float_info);
+ if (irp->override)
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record ignores the memory change "
+ "of instruction at address 0x%s because it "
+ "can't get the value of the segment register.\n"),
+ paddr_nz (irp->addr));
+ return 0;
+ }
- set_gdbarch_get_longjmp_target (gdbarch, i386_get_longjmp_target);
+ if (i386_record_lea_modrm_addr (irp, &addr))
+ return -1;
- /* Call dummy code. */
- set_gdbarch_push_dummy_call (gdbarch, i386_push_dummy_call);
+ if (record_arch_list_add_mem (addr, 1 << irp->ot))
+ return -1;
- set_gdbarch_convert_register_p (gdbarch, i386_convert_register_p);
- set_gdbarch_register_to_value (gdbarch, i386_register_to_value);
- set_gdbarch_value_to_register (gdbarch, i386_value_to_register);
+ return 0;
+}
- set_gdbarch_return_value (gdbarch, i386_return_value);
+/* 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. */
- set_gdbarch_skip_prologue (gdbarch, i386_skip_prologue);
+static int
+i386_process_record (struct gdbarch *gdbarch, struct regcache *regcache,
+ CORE_ADDR addr)
+{
+ int prefixes = 0;
+ uint8_t tmpu8;
+ uint16_t tmpu16;
+ uint32_t tmpu32;
+ uint32_t opcode;
+ struct i386_record_s ir;
+
+ bzero (&ir, sizeof (struct i386_record_s));
+ ir.regcache = regcache;
+ ir.addr = addr;
+ ir.aflag = 1;
+ ir.dflag = 1;
+
+ if (record_debug > 1)
+ fprintf_unfiltered (gdb_stdlog, "Process record: i386_process_record "
+ "addr = 0x%s\n",
+ paddr_nz (ir.addr));
+
+ /* prefixes */
+ while (1)
+ {
+ if (target_read_memory (ir.addr, &tmpu8, 1))
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record: error reading memory at "
+ "addr 0x%s len = 1.\n"),
+ paddr_nz (ir.addr));
+ return -1;
+ }
+ ir.addr++;
+ switch (tmpu8)
+ {
+ case 0xf3:
+ prefixes |= PREFIX_REPZ;
+ break;
+ case 0xf2:
+ prefixes |= PREFIX_REPNZ;
+ break;
+ case 0xf0:
+ prefixes |= PREFIX_LOCK;
+ break;
+ case 0x2e:
+ ir.override = I386_CS_REGNUM;
+ break;
+ case 0x36:
+ ir.override = I386_SS_REGNUM;
+ break;
+ case 0x3e:
+ ir.override = I386_DS_REGNUM;
+ break;
+ case 0x26:
+ ir.override = I386_ES_REGNUM;
+ break;
+ case 0x64:
+ ir.override = I386_FS_REGNUM;
+ break;
+ case 0x65:
+ ir.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)
+ ir.dflag ^= 1;
+ if (prefixes & PREFIX_ADDR)
+ ir.aflag ^= 1;
+
+ /* now check op code */
+ opcode = (uint32_t) tmpu8;
+reswitch:
+ switch (opcode)
+ {
+ case 0x0f:
+ if (target_read_memory (ir.addr, &tmpu8, 1))
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record: error reading memory at "
+ "addr 0x%s len = 1.\n"),
+ paddr_nz (ir.addr));
+ return -1;
+ }
+ ir.addr++;
+ opcode = (uint16_t) tmpu8 | 0x0f00;
+ goto reswitch;
+ break;
- /* Stack grows downward. */
- set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
+ /* arith & logic */
+ case 0x00:
+ case 0x01:
+ case 0x02:
+ case 0x03:
+ case 0x04:
+ case 0x05:
+ case 0x08:
+ case 0x09:
+ case 0x0a:
+ case 0x0b:
+ case 0x0c:
+ case 0x0d:
+ case 0x10:
+ case 0x11:
+ case 0x12:
+ case 0x13:
+ case 0x14:
+ case 0x15:
+ case 0x18:
+ case 0x19:
+ case 0x1a:
+ case 0x1b:
+ case 0x1c:
+ case 0x1d:
+ case 0x20:
+ case 0x21:
+ case 0x22:
+ case 0x23:
+ case 0x24:
+ case 0x25:
+ case 0x28:
+ case 0x29:
+ case 0x2a:
+ case 0x2b:
+ case 0x2c:
+ case 0x2d:
+ case 0x30:
+ case 0x31:
+ case 0x32:
+ case 0x33:
+ case 0x34:
+ case 0x35:
+ case 0x38:
+ case 0x39:
+ case 0x3a:
+ case 0x3b:
+ case 0x3c:
+ case 0x3d:
+ if (((opcode >> 3) & 7) != OP_CMPL)
+ {
+ if ((opcode & 1) == 0)
+ ir.ot = OT_BYTE;
+ else
+ ir.ot = ir.dflag + OT_WORD;
- set_gdbarch_breakpoint_from_pc (gdbarch, i386_breakpoint_from_pc);
- set_gdbarch_decr_pc_after_break (gdbarch, 1);
- set_gdbarch_max_insn_length (gdbarch, I386_MAX_INSN_LEN);
+ switch ((opcode >> 1) & 3)
+ {
+ /* OP Ev, Gv */
+ case 0:
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (ir.mod != 3)
+ {
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+ else
+ {
+ if (ir.ot == OT_BYTE)
+ ir.rm &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ break;
+ /* OP Gv, Ev */
+ case 1:
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (ir.ot == OT_BYTE)
+ ir.reg &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.reg))
+ return -1;
+ break;
+ /* OP A, Iv */
+ case 2:
+ if (record_arch_list_add_reg (ir.regcache, I386_EAX_REGNUM))
+ return -1;
+ break;
+ }
+ }
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
- set_gdbarch_frame_args_skip (gdbarch, 8);
+ /* GRP1 */
+ case 0x80:
+ case 0x81:
+ case 0x82:
+ case 0x83:
+ if (i386_record_modrm (&ir))
+ return -1;
- /* Wire in the MMX registers. */
- set_gdbarch_num_pseudo_regs (gdbarch, i386_num_mmx_regs);
- set_gdbarch_pseudo_register_read (gdbarch, i386_pseudo_register_read);
- set_gdbarch_pseudo_register_write (gdbarch, i386_pseudo_register_write);
+ if (ir.reg != OP_CMPL)
+ {
+ if ((opcode & 1) == 0)
+ ir.ot = OT_BYTE;
+ else
+ ir.ot = ir.dflag + OT_WORD;
- set_gdbarch_print_insn (gdbarch, i386_print_insn);
+ if (ir.mod != 3)
+ {
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+ else
+ {
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ }
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
- set_gdbarch_dummy_id (gdbarch, i386_dummy_id);
+ /* inv */
+ case 0x40:
+ case 0x41:
+ case 0x42:
+ case 0x43:
+ case 0x44:
+ case 0x45:
+ case 0x46:
+ case 0x47:
+ /* dec */
+ case 0x48:
+ case 0x49:
+ case 0x4a:
+ case 0x4b:
+ case 0x4c:
+ case 0x4d:
+ case 0x4e:
+ case 0x4f:
+ if (record_arch_list_add_reg (ir.regcache, opcode & 7))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
- set_gdbarch_unwind_pc (gdbarch, i386_unwind_pc);
+ /* GRP3 */
+ case 0xf6:
+ case 0xf7:
+ if ((opcode & 1) == 0)
+ ir.ot = OT_BYTE;
+ else
+ ir.ot = ir.dflag + OT_WORD;
+ if (i386_record_modrm (&ir))
+ return -1;
- /* Add the i386 register groups. */
- i386_add_reggroups (gdbarch);
- set_gdbarch_register_reggroup_p (gdbarch, i386_register_reggroup_p);
+ switch (ir.reg)
+ {
+ /* test */
+ case 0:
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+ /* not */
+ case 2:
+ if (ir.mod != 3)
+ {
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+ else
+ {
+ if (ir.ot == OT_BYTE)
+ ir.rm &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ break;
+ /* neg */
+ case 3:
+ if (ir.mod != 3)
+ {
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+ else
+ {
+ if (ir.ot == OT_BYTE)
+ ir.rm &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+ /* mul */
+ case 4:
+ /* imul */
+ case 5:
+ /* div */
+ case 6:
+ /* idiv */
+ case 7:
+ if (record_arch_list_add_reg (ir.regcache, I386_EAX_REGNUM))
+ return -1;
+ if (ir.ot != OT_BYTE)
+ {
+ if (record_arch_list_add_reg (ir.regcache, I386_EDX_REGNUM))
+ return -1;
+ }
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+ default:
+ ir.addr -= 2;
+ opcode = opcode << 8 | ir.modrm;
+ goto no_support;
+ break;
+ }
+ break;
+
+ /* GRP4 */
+ case 0xfe:
+ /* GRP5 */
+ case 0xff:
+ if ((opcode & 1) == 0)
+ ir.ot = OT_BYTE;
+ else
+ ir.ot = ir.dflag + OT_WORD;
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (ir.reg >= 2 && opcode == 0xfe)
+ {
+ ir.addr -= 2;
+ opcode = opcode << 8 | ir.modrm;
+ goto no_support;
+ }
+
+ switch (ir.reg)
+ {
+ /* inc */
+ case 0:
+ /* dec */
+ case 1:
+ if (ir.mod != 3)
+ {
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+ else
+ {
+ if (ir.ot == OT_BYTE)
+ ir.rm &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+ /* call */
+ case 2:
+ /* push */
+ case 6:
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ regcache_raw_read (ir.regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (ir.dflag + 1)), (1 << (ir.dflag + 1))))
+ return -1;
+ break;
+ /* lcall */
+ case 3:
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_CS_REGNUM))
+ return -1;
+ regcache_raw_read (ir.regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (ir.dflag + 2)), (1 << (ir.dflag + 2))))
+ return -1;
+ break;
+ /* jmp */
+ case 4:
+ /* ljmp */
+ case 5:
+ break;
+ default:
+ ir.addr -= 2;
+ opcode = opcode << 8 | ir.modrm;
+ goto no_support;
+ break;
+ }
+ break;
+
+ /* test */
+ case 0x84:
+ case 0x85:
+ case 0xa8:
+ case 0xa9:
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* CWDE/CBW */
+ case 0x98:
+ if (record_arch_list_add_reg (ir.regcache, I386_EAX_REGNUM))
+ return -1;
+ break;
+
+ /* CDQ/CWD */
+ case 0x99:
+ if (record_arch_list_add_reg (ir.regcache, I386_EAX_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_EDX_REGNUM))
+ return -1;
+ break;
+
+ /* imul */
+ case 0x0faf:
+ case 0x69:
+ case 0x6b:
+ ir.ot = ir.dflag + OT_WORD;
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (ir.ot == OT_BYTE)
+ ir.reg &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.reg))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* xadd */
+ case 0x0fc0:
+ case 0x0fc1:
+ if ((opcode & 1) == 0)
+ ir.ot = OT_BYTE;
+ else
+ ir.ot = ir.dflag + OT_WORD;
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (ir.mod == 3)
+ {
+ if (ir.ot == OT_BYTE)
+ ir.reg &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.reg))
+ return -1;
+ if (ir.ot == OT_BYTE)
+ ir.rm &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ else
+ {
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ if (ir.ot == OT_BYTE)
+ ir.reg &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.reg))
+ return -1;
+ }
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* cmpxchg */
+ case 0x0fb0:
+ case 0x0fb1:
+ if ((opcode & 1) == 0)
+ ir.ot = OT_BYTE;
+ else
+ ir.ot = ir.dflag + OT_WORD;
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (ir.mod == 3)
+ {
+ if (record_arch_list_add_reg (ir.regcache, I386_EAX_REGNUM))
+ return -1;
+ if (ir.ot == OT_BYTE)
+ ir.reg &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.reg))
+ return -1;
+ }
+ else
+ {
+ if (record_arch_list_add_reg (ir.regcache, I386_EAX_REGNUM))
+ return -1;
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* cmpxchg8b */
+ case 0x0fc7:
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (ir.mod == 3)
+ {
+ ir.addr -= 2;
+ opcode = opcode << 8 | ir.modrm;
+ goto no_support;
+ }
+ if (record_arch_list_add_reg (ir.regcache, I386_EAX_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_EDX_REGNUM))
+ return -1;
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* push */
+ case 0x50:
+ case 0x51:
+ case 0x52:
+ case 0x53:
+ case 0x54:
+ case 0x55:
+ case 0x56:
+ case 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 (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ regcache_raw_read (ir.regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (ir.dflag + 1)), (1 << (ir.dflag + 1))))
+ return -1;
+ break;
+
+ /* pop */
+ case 0x58:
+ case 0x59:
+ case 0x5a:
+ case 0x5b:
+ case 0x5c:
+ case 0x5d:
+ case 0x5e:
+ case 0x5f:
+ ir.ot = ir.dflag + OT_WORD;
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ if (ir.ot == OT_BYTE)
+ opcode &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, opcode & 0x7))
+ return -1;
+ break;
+
+ /* pusha */
+ case 0x60:
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ regcache_raw_read (ir.regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (ir.dflag + 4)), (1 << (ir.dflag + 4))))
+ return -1;
+ break;
+
+ /* popa */
+ case 0x61:
+ for (tmpu8 = I386_EAX_REGNUM; tmpu8 <= I386_EDI_REGNUM; tmpu8++)
+ {
+ if (record_arch_list_add_reg (ir.regcache, tmpu8))
+ return -1;
+ }
+ break;
+
+ /* pop */
+ case 0x8f:
+ ir.ot = ir.dflag + OT_WORD;
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (ir.mod == 3)
+ {
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ else
+ {
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ break;
+
+ /* enter */
+ case 0xc8:
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_EBP_REGNUM))
+ return -1;
+ regcache_raw_read (ir.regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (ir.dflag + 1)), (1 << (ir.dflag + 1))))
+ return -1;
+ break;
+
+ /* leave */
+ case 0xc9:
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_EBP_REGNUM))
+ return -1;
+ break;
+
+ /* pop es */
+ case 0x07:
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_ES_REGNUM))
+ return -1;
+ break;
+
+ /* pop ss */
+ case 0x17:
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_SS_REGNUM))
+ return -1;
+ break;
+
+ /* pop ds */
+ case 0x1f:
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_DS_REGNUM))
+ return -1;
+ break;
+
+ /* pop fs */
+ case 0x0fa1:
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_FS_REGNUM))
+ return -1;
+ break;
+
+ /* pop gs */
+ case 0x0fa9:
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_GS_REGNUM))
+ return -1;
+ break;
+
+ /* mov */
+ case 0x88:
+ case 0x89:
+ case 0xc6:
+ case 0xc7:
+ if ((opcode & 1) == 0)
+ ir.ot = OT_BYTE;
+ else
+ ir.ot = ir.dflag + OT_WORD;
+
+ if (i386_record_modrm (&ir))
+ return -1;
+
+ if (ir.mod != 3)
+ {
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+ else
+ {
+ if (ir.ot == OT_BYTE)
+ ir.rm &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+ /* mov */
+ case 0x8a:
+ case 0x8b:
+ if ((opcode & 1) == 0)
+ ir.ot = OT_BYTE;
+ else
+ ir.ot = ir.dflag + OT_WORD;
+
+ if (i386_record_modrm (&ir))
+ return -1;
+
+ if (ir.ot == OT_BYTE)
+ ir.reg &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.reg))
+ return -1;
+
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* mov seg */
+ case 0x8e:
+ if (i386_record_modrm (&ir))
+ return -1;
+
+ switch (ir.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:
+ ir.addr -= 2;
+ opcode = opcode << 8 | ir.modrm;
+ goto no_support;
+ break;
+ }
+ if (record_arch_list_add_reg (ir.regcache, tmpu8))
+ return -1;
+
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* mov seg */
+ case 0x8c:
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (ir.reg > 5)
+ {
+ ir.addr -= 2;
+ opcode = opcode << 8 | ir.modrm;
+ goto no_support;
+ }
+
+ if (ir.mod == 3)
+ {
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ else
+ {
+ ir.ot = OT_WORD;
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* movzbS */
+ case 0x0fb6:
+ /* movzwS */
+ case 0x0fb7:
+ /* movsbS */
+ case 0x0fbe:
+ /* movswS */
+ case 0x0fbf:
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, ir.reg))
+ return -1;
+ break;
+
+ /* lea */
+ case 0x8d:
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (ir.mod == 3)
+ {
+ ir.addr -= 2;
+ opcode = opcode << 8 | ir.modrm;
+ goto no_support;
+ }
+
+ ir.ot = ir.dflag;
+ if (ir.ot == OT_BYTE)
+ ir.reg &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.reg))
+ return -1;
+ break;
+
+ /* mov EAX */
+ case 0xa0:
+ case 0xa1:
+ /* xlat */
+ case 0xd7:
+ if (record_arch_list_add_reg (ir.regcache, I386_EAX_REGNUM))
+ return -1;
+ break;
+
+ /* mov EAX */
+ case 0xa2:
+ case 0xa3:
+ {
+ uint32_t addr;
+
+ if (ir.override)
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record ignores the memory change "
+ "of instruction at address 0x%s because "
+ "it can't get the value of the segment "
+ "register.\n"),
+ paddr_nz (ir.addr));
+ }
+ else
+ {
+ if ((opcode & 1) == 0)
+ ir.ot = OT_BYTE;
+ else
+ ir.ot = ir.dflag + OT_WORD;
+ if (ir.aflag)
+ {
+ if (target_read_memory
+ (ir.addr, (gdb_byte *) & addr, 4))
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record: error reading "
+ "memory at addr 0x%s len = 4.\n"),
+ paddr_nz (ir.addr));
+ return -1;
+ }
+ ir.addr += 4;
+ }
+ else
+ {
+ if (target_read_memory
+ (ir.addr, (gdb_byte *) & tmpu16, 4))
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record: error reading "
+ "memory at addr 0x%s len = 4.\n"),
+ paddr_nz (ir.addr));
+ return -1;
+ }
+ ir.addr += 2;
+ addr = tmpu16;
+ }
+ if (record_arch_list_add_mem (addr, 1 << ir.ot))
+ return -1;
+ }
+ }
+ break;
+
+ /* mov R, Ib */
+ case 0xb0:
+ case 0xb1:
+ case 0xb2:
+ case 0xb3:
+ case 0xb4:
+ case 0xb5:
+ case 0xb6:
+ case 0xb7:
+ if (record_arch_list_add_reg (ir.regcache, (opcode & 0x7) & 0x3))
+ return -1;
+ break;
+
+ /* mov R, Iv */
+ case 0xb8:
+ case 0xb9:
+ case 0xba:
+ case 0xbb:
+ case 0xbc:
+ case 0xbd:
+ case 0xbe:
+ case 0xbf:
+ if (record_arch_list_add_reg (ir.regcache, opcode & 0x7))
+ return -1;
+ break;
+
+ /* xchg R, EAX */
+ case 0x91:
+ case 0x92:
+ case 0x93:
+ case 0x94:
+ case 0x95:
+ case 0x96:
+ case 0x97:
+ if (record_arch_list_add_reg (ir.regcache, I386_EAX_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, opcode & 0x7))
+ return -1;
+ break;
+
+ /* xchg Ev, Gv */
+ case 0x86:
+ case 0x87:
+ if ((opcode & 1) == 0)
+ ir.ot = OT_BYTE;
+ else
+ ir.ot = ir.dflag + OT_WORD;
+
+ if (i386_record_modrm (&ir))
+ return -1;
+
+ if (ir.mod == 3)
+ {
+ if (ir.ot == OT_BYTE)
+ ir.rm &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ else
+ {
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+
+ if (ir.ot == OT_BYTE)
+ ir.reg &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.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 (&ir))
+ return -1;
+ if (ir.mod == 3)
+ {
+ if (opcode > 0xff)
+ ir.addr -= 3;
+ else
+ ir.addr -= 2;
+ opcode = opcode << 8 | ir.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 (ir.regcache, tmpu8))
+ return -1;
+
+ if (record_arch_list_add_reg (ir.regcache, ir.reg))
+ return -1;
+ break;
+
+ /* shifts */
+ case 0xc0:
+ case 0xc1:
+ case 0xd0:
+ case 0xd1:
+ case 0xd2:
+ case 0xd3:
+ if ((opcode & 1) == 0)
+ ir.ot = OT_BYTE;
+ else
+ ir.ot = ir.dflag + OT_WORD;
+
+ if (i386_record_modrm (&ir))
+ return -1;
+
+ if (ir.mod != 3 && (opcode == 0xd2 || opcode == 0xd3))
+ {
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+ else
+ {
+ if (ir.ot == OT_BYTE)
+ ir.rm &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ case 0x0fa4:
+ case 0x0fa5:
+ case 0x0fac:
+ case 0x0fad:
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (ir.mod == 3)
+ {
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ else
+ {
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+ break;
+
+ /* floats */
+ /* It just record the memory change of instrcution. */
+ case 0xd8:
+ case 0xd9:
+ case 0xda:
+ case 0xdb:
+ case 0xdc:
+ case 0xdd:
+ case 0xde:
+ case 0xdf:
+ if (i386_record_modrm (&ir))
+ return -1;
+ ir.reg |= ((opcode & 7) << 3);
+ if (ir.mod != 3)
+ {
+ /* memory */
+ uint32_t addr;
+
+ if (i386_record_lea_modrm_addr (&ir, &addr))
+ return -1;
+ switch (ir.reg)
+ {
+ case 0x00:
+ case 0x01:
+ case 0x02:
+ case 0x03:
+ case 0x04:
+ case 0x05:
+ case 0x06:
+ case 0x07:
+ case 0x10:
+ case 0x11:
+ case 0x12:
+ case 0x13:
+ case 0x14:
+ case 0x15:
+ case 0x16:
+ case 0x17:
+ case 0x20:
+ case 0x21:
+ case 0x22:
+ case 0x23:
+ case 0x24:
+ case 0x25:
+ case 0x26:
+ case 0x27:
+ case 0x30:
+ case 0x31:
+ case 0x32:
+ case 0x33:
+ case 0x34:
+ case 0x35:
+ case 0x36:
+ case 0x37:
+ break;
+ case 0x08:
+ case 0x0a:
+ case 0x0b:
+ case 0x18:
+ case 0x19:
+ case 0x1a:
+ case 0x1b:
+ case 0x28:
+ case 0x29:
+ case 0x2a:
+ case 0x2b:
+ case 0x38:
+ case 0x39:
+ case 0x3a:
+ case 0x3b:
+ switch (ir.reg & 7)
+ {
+ case 0:
+ break;
+ case 1:
+ switch (ir.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 (ir.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 (ir.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 (ir.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:
+ ir.addr -= 2;
+ opcode = opcode << 8 | ir.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)
+ ir.ot = OT_BYTE;
+ else
+ ir.ot = ir.dflag + OT_WORD;
+ if (opcode == 0xa4 || opcode == 0xa5)
+ {
+ if (record_arch_list_add_reg (ir.regcache, I386_ESI_REGNUM))
+ return -1;
+ }
+ if (record_arch_list_add_reg (ir.regcache, I386_EDI_REGNUM))
+ return -1;
+
+ regcache_raw_read (ir.regcache, I386_EDI_REGNUM,
+ (gdb_byte *) & addr);
+ if (!ir.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 at address 0x%s because "
+ "it can't get the value of the segment "
+ "register.\n"),
+ paddr_nz (ir.addr));
+ }
+
+ if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ))
+ {
+ uint32_t count;
+
+ regcache_raw_read (ir.regcache, I386_ECX_REGNUM,
+ (gdb_byte *) & count);
+ if (!ir.aflag)
+ count &= 0xffff;
+
+ regcache_raw_read (ir.regcache, I386_EFLAGS_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if ((tmpu32 >> 10) & 0x1)
+ addr -= (count - 1) * (1 << ir.ot);
+
+ if (ir.aflag)
+ {
+ if (record_arch_list_add_mem (addr, count * (1 << ir.ot)))
+ return -1;
+ }
+
+ if (record_arch_list_add_reg (ir.regcache, I386_ECX_REGNUM))
+ return -1;
+ }
+ else
+ {
+ if (ir.aflag)
+ {
+ if (record_arch_list_add_mem (addr, 1 << ir.ot))
+ return -1;
+ }
+ }
+ }
+ break;
+
+ /* lodsS */
+ case 0xac:
+ case 0xad:
+ if (record_arch_list_add_reg (ir.regcache, I386_EAX_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_ESI_REGNUM))
+ return -1;
+ if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ))
+ {
+ if (record_arch_list_add_reg (ir.regcache, I386_ECX_REGNUM))
+ return -1;
+ }
+ break;
+
+ /* outsS */
+ case 0x6e:
+ case 0x6f:
+ if (record_arch_list_add_reg (ir.regcache, I386_ESI_REGNUM))
+ return -1;
+ if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ))
+ {
+ if (record_arch_list_add_reg (ir.regcache, I386_ECX_REGNUM))
+ return -1;
+ }
+ break;
+
+ /* scasS */
+ case 0xae:
+ case 0xaf:
+ if (record_arch_list_add_reg (ir.regcache, I386_EDI_REGNUM))
+ return -1;
+ if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ))
+ {
+ if (record_arch_list_add_reg (ir.regcache, I386_ECX_REGNUM))
+ return -1;
+ }
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* cmpsS */
+ case 0xa6:
+ case 0xa7:
+ if (record_arch_list_add_reg (ir.regcache, I386_EDI_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_ESI_REGNUM))
+ return -1;
+ if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ))
+ {
+ if (record_arch_list_add_reg (ir.regcache, I386_ECX_REGNUM))
+ return -1;
+ }
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* port I/O */
+ case 0xe4:
+ case 0xe5:
+ case 0xec:
+ case 0xed:
+ if (record_arch_list_add_reg (ir.regcache, 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 (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_CS_REGNUM))
+ return -1;
+ break;
+
+ /* iret */
+ case 0xcf:
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_CS_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* call im */
+ case 0xe8:
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ regcache_raw_read (ir.regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (ir.dflag + 1)), (1 << (ir.dflag + 1))))
+ return -1;
+ break;
+
+ /* lcall im */
+ case 0x9a:
+ if (record_arch_list_add_reg (ir.regcache, I386_CS_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ regcache_raw_read (ir.regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (ir.dflag + 2)), (1 << (ir.dflag + 2))))
+ return -1;
+ break;
+
+ /* jmp im */
+ case 0xe9:
+ /* ljmp im */
+ case 0xea:
+ /* jmp Jb */
+ case 0xeb:
+ /* jcc Jb */
+ case 0x70:
+ case 0x71:
+ case 0x72:
+ case 0x73:
+ case 0x74:
+ case 0x75:
+ case 0x76:
+ case 0x77:
+ case 0x78:
+ case 0x79:
+ case 0x7a:
+ case 0x7b:
+ case 0x7c:
+ case 0x7d:
+ case 0x7e:
+ case 0x7f:
+ /* jcc Jv */
+ case 0x0f80:
+ case 0x0f81:
+ case 0x0f82:
+ case 0x0f83:
+ case 0x0f84:
+ case 0x0f85:
+ case 0x0f86:
+ case 0x0f87:
+ case 0x0f88:
+ case 0x0f89:
+ case 0x0f8a:
+ case 0x0f8b:
+ case 0x0f8c:
+ case 0x0f8d:
+ case 0x0f8e:
+ case 0x0f8f:
+ break;
+
+ /* setcc Gv */
+ case 0x0f90:
+ case 0x0f91:
+ case 0x0f92:
+ case 0x0f93:
+ case 0x0f94:
+ case 0x0f95:
+ case 0x0f96:
+ case 0x0f97:
+ case 0x0f98:
+ case 0x0f99:
+ case 0x0f9a:
+ case 0x0f9b:
+ case 0x0f9c:
+ case 0x0f9d:
+ case 0x0f9e:
+ case 0x0f9f:
+ ir.ot = OT_BYTE;
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (ir.mod == 3)
+ {
+ if (record_arch_list_add_reg (ir.regcache, ir.rm & 0x3))
+ return -1;
+ }
+ else
+ {
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+ break;
+
+ /* cmov Gv, Ev */
+ case 0x0f40:
+ case 0x0f41:
+ case 0x0f42:
+ case 0x0f43:
+ case 0x0f44:
+ case 0x0f45:
+ case 0x0f46:
+ case 0x0f47:
+ case 0x0f48:
+ case 0x0f49:
+ case 0x0f4a:
+ case 0x0f4b:
+ case 0x0f4c:
+ case 0x0f4d:
+ case 0x0f4e:
+ case 0x0f4f:
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (ir.dflag == OT_BYTE)
+ ir.reg &= 0x3;
+ if (record_arch_list_add_reg (ir.regcache, ir.reg & 0x3))
+ return -1;
+ break;
+
+ /* flags */
+ /* pushf */
+ case 0x9c:
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ regcache_raw_read (ir.regcache, I386_ESP_REGNUM,
+ (gdb_byte *) & tmpu32);
+ if (record_arch_list_add_mem
+ ((CORE_ADDR) tmpu32 - (1 << (ir.dflag + 1)), (1 << (ir.dflag + 1))))
+ return -1;
+ break;
+
+ /* popf */
+ case 0x9d:
+ if (record_arch_list_add_reg (ir.regcache, I386_ESP_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, 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 (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* lahf */
+ case 0x9f:
+ if (record_arch_list_add_reg (ir.regcache, 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:
+ ir.ot = ir.dflag + OT_WORD;
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (ir.reg < 4)
+ {
+ ir.addr -= 3;
+ opcode = opcode << 8 | ir.modrm;
+ goto no_support;
+ }
+ ir.reg -= 4;
+ if (ir.reg != 0)
+ {
+ if (ir.mod != 3)
+ {
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+ else
+ {
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ }
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* bt Gv, Ev */
+ case 0x0fa3:
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* bsf */
+ case 0x0fbc:
+ /* bsr */
+ case 0x0fbd:
+ if (record_arch_list_add_reg (ir.regcache, ir.reg))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, 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 (ir.regcache, I386_EAX_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* misc */
+ /* nop */
+ case 0x90:
+ if (prefixes & PREFIX_LOCK)
+ {
+ ir.addr -= 1;
+ goto no_support;
+ }
+ break;
+
+ /* fwait */
+ /* XXX */
+ case 0x9b:
+ printf_unfiltered (_("Process record doesn't support instruction "
+ "fwait.\n"));
+ ir.addr -= 1;
+ goto no_support;
+ break;
+
+ /* int3 */
+ /* XXX */
+ case 0xcc:
+ printf_unfiltered (_("Process record doesn't support instruction "
+ "int3.\n"));
+ ir.addr -= 1;
+ goto no_support;
+ break;
+
+ /* int */
+ /* XXX */
+ case 0xcd:
+ {
+ int ret;
+ if (target_read_memory (ir.addr, &tmpu8, 1))
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record: error reading memory "
+ "at addr 0x%s len = 1.\n"),
+ paddr_nz (ir.addr));
+ return -1;
+ }
+ ir.addr++;
+ if (tmpu8 != 0x80
+ || gdbarch_tdep (gdbarch)->i386_intx80_record == NULL)
+ {
+ printf_unfiltered (_("Process record doesn't support "
+ "instruction int 0x%02x.\n"),
+ tmpu8);
+ ir.addr -= 2;
+ goto no_support;
+ }
+ ret = gdbarch_tdep (gdbarch)->i386_intx80_record (ir.regcache);
+ if (ret)
+ return ret;
+ }
+ break;
+
+ /* into */
+ /* XXX */
+ case 0xce:
+ printf_unfiltered (_("Process record doesn't support "
+ "instruction into.\n"));
+ ir.addr -= 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"));
+ ir.addr -= 1;
+ goto no_support;
+ break;
+
+ /* bswap reg */
+ case 0x0fc8:
+ case 0x0fc9:
+ case 0x0fca:
+ case 0x0fcb:
+ case 0x0fcc:
+ case 0x0fcd:
+ case 0x0fce:
+ case 0x0fcf:
+ if (record_arch_list_add_reg (ir.regcache, opcode & 7))
+ return -1;
+ break;
+
+ /* salc */
+ case 0xd6:
+ if (record_arch_list_add_reg (ir.regcache, I386_EAX_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* loopnz */
+ case 0xe0:
+ /* loopz */
+ case 0xe1:
+ /* loop */
+ case 0xe2:
+ /* jecxz */
+ case 0xe3:
+ if (record_arch_list_add_reg (ir.regcache, I386_ECX_REGNUM))
+ return -1;
+ break;
+
+ /* wrmsr */
+ case 0x0f30:
+ printf_unfiltered (_("Process record doesn't support "
+ "instruction wrmsr.\n"));
+ ir.addr -= 2;
+ goto no_support;
+ break;
+
+ /* rdmsr */
+ case 0x0f32:
+ printf_unfiltered (_("Process record doesn't support "
+ "instruction rdmsr.\n"));
+ ir.addr -= 2;
+ goto no_support;
+ break;
+
+ /* rdtsc */
+ case 0x0f31:
+ printf_unfiltered (_("Process record doesn't support "
+ "instruction rdtsc.\n"));
+ ir.addr -= 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"));
+ ir.addr -= 2;
+ goto no_support;
+ }
+ ret = gdbarch_tdep (gdbarch)->i386_sysenter_record (ir.regcache);
+ if (ret)
+ return ret;
+ }
+ break;
+
+ /* sysexit */
+ case 0x0f35:
+ printf_unfiltered (_("Process record doesn't support "
+ "instruction sysexit.\n"));
+ ir.addr -= 2;
+ goto no_support;
+ break;
+
+ /* cpuid */
+ case 0x0fa2:
+ if (record_arch_list_add_reg (ir.regcache, I386_EAX_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_ECX_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_EDX_REGNUM))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_EBX_REGNUM))
+ return -1;
+ break;
+
+ /* hlt */
+ case 0xf4:
+ printf_unfiltered (_("Process record doesn't support "
+ "instruction hlt.\n"));
+ ir.addr -= 1;
+ goto no_support;
+ break;
+
+ case 0x0f00:
+ if (i386_record_modrm (&ir))
+ return -1;
+ switch (ir.reg)
+ {
+ /* sldt */
+ case 0:
+ /* str */
+ case 1:
+ if (ir.mod == 3)
+ {
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ else
+ {
+ ir.ot = OT_WORD;
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+ break;
+ /* lldt */
+ case 2:
+ /* ltr */
+ case 3:
+ break;
+ /* verr */
+ case 4:
+ /* verw */
+ case 5:
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+ default:
+ ir.addr -= 3;
+ opcode = opcode << 8 | ir.modrm;
+ goto no_support;
+ break;
+ }
+ break;
+
+ case 0x0f01:
+ if (i386_record_modrm (&ir))
+ return -1;
+ switch (ir.reg)
+ {
+ /* sgdt */
+ case 0:
+ {
+ uint32_t addr;
+
+ if (ir.mod == 3)
+ {
+ ir.addr -= 3;
+ opcode = opcode << 8 | ir.modrm;
+ goto no_support;
+ }
+
+ if (ir.override)
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record ignores the memory "
+ "change of instruction at "
+ "address 0x%s because it can't get "
+ "the value of the segment "
+ "register.\n"),
+ paddr_nz (ir.addr));
+ }
+ else
+ {
+ if (i386_record_lea_modrm_addr (&ir, &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 (ir.mod == 3)
+ {
+ switch (ir.rm)
+ {
+ /* monitor */
+ case 0:
+ break;
+ /* mwait */
+ case 1:
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+ default:
+ ir.addr -= 3;
+ opcode = opcode << 8 | ir.modrm;
+ goto no_support;
+ break;
+ }
+ }
+ else
+ {
+ /* sidt */
+ if (ir.override)
+ {
+ if (record_debug)
+ printf_unfiltered (_("Process record ignores the memory "
+ "change of instruction at "
+ "address 0x%s because it can't get "
+ "the value of the segment "
+ "register.\n"),
+ paddr_nz (ir.addr));
+ }
+ else
+ {
+ uint32_t addr;
+
+ if (i386_record_lea_modrm_addr (&ir, &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 (ir.mod == 3)
+ {
+ ir.addr -= 3;
+ opcode = opcode << 8 | ir.modrm;
+ goto no_support;
+ }
+ break;
+ /* smsw */
+ case 4:
+ if (ir.mod == 3)
+ {
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ else
+ {
+ ir.ot = OT_WORD;
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+ break;
+ /* lmsw */
+ case 6:
+ break;
+ }
+ break;
+
+ /* invd */
+ case 0x0f08:
+ /* wbinvd */
+ case 0x0f09:
+ break;
+
+ /* arpl */
+ case 0x63:
+ ir.ot = ir.dflag ? OT_LONG : OT_WORD;
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (ir.mod != 3)
+ {
+ if (i386_record_lea_modrm (&ir))
+ return -1;
+ }
+ else
+ {
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ /* lar */
+ case 0x0f02:
+ /* lsl */
+ case 0x0f03:
+ if (i386_record_modrm (&ir))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, ir.reg))
+ return -1;
+ if (record_arch_list_add_reg (ir.regcache, I386_EFLAGS_REGNUM))
+ return -1;
+ break;
+
+ case 0x0f18:
+ break;
+
+ /* nop (multi byte) */
+ case 0x0f19:
+ case 0x0f1a:
+ case 0x0f1b:
+ case 0x0f1c:
+ case 0x0f1d:
+ case 0x0f1e:
+ case 0x0f1f:
+ break;
+
+ /* mov reg, crN */
+ case 0x0f20:
+ /* mov crN, reg */
+ case 0x0f22:
+ if (i386_record_modrm (&ir))
+ return -1;
+ if ((ir.modrm & 0xc0) != 0xc0)
+ {
+ ir.addr -= 2;
+ opcode = opcode << 8 | ir.modrm;
+ goto no_support;
+ }
+ switch (ir.reg)
+ {
+ case 0:
+ case 2:
+ case 3:
+ case 4:
+ case 8:
+ if (opcode & 2)
+ {
+ }
+ else
+ {
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ break;
+ default:
+ ir.addr -= 2;
+ opcode = opcode << 8 | ir.modrm;
+ goto no_support;
+ break;
+ }
+ break;
+
+ /* mov reg, drN */
+ case 0x0f21:
+ /* mov drN, reg */
+ case 0x0f23:
+ if (i386_record_modrm (&ir))
+ return -1;
+ if ((ir.modrm & 0xc0) != 0xc0 || ir.reg == 4
+ || ir.reg == 5 || ir.reg >= 8)
+ {
+ ir.addr -= 2;
+ opcode = opcode << 8 | ir.modrm;
+ goto no_support;
+ }
+ if (opcode & 2)
+ {
+ }
+ else
+ {
+ if (record_arch_list_add_reg (ir.regcache, ir.rm))
+ return -1;
+ }
+ break;
+
+ /* clts */
+ case 0x0f06:
+ break;
+
+ /* MMX/SSE/SSE2/PNI support */
+ /* XXX */
+
+ default:
+ if (opcode > 0xff)
+ ir.addr -= 2;
+ else
+ ir.addr -= 1;
+ goto no_support;
+ break;
+ }
+
+/* In the future, Maybe still need to deal with need_dasm */
+ if (record_arch_list_add_reg (ir.regcache, I386_EIP_REGNUM))
+ return -1;
+ if (record_arch_list_add_end ())
+ 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 (ir.addr));
+ return -1;
+}
+
+\f
+static struct gdbarch *
+i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
+{
+ struct gdbarch_tdep *tdep;
+ struct gdbarch *gdbarch;
+
+ /* If there is already a candidate, use it. */
+ arches = gdbarch_list_lookup_by_info (arches, &info);
+ if (arches != NULL)
+ return arches->gdbarch;
+
+ /* Allocate space for the new architecture. */
+ tdep = XCALLOC (1, struct gdbarch_tdep);
+ gdbarch = gdbarch_alloc (&info, tdep);
+
+ /* General-purpose registers. */
+ tdep->gregset = NULL;
+ tdep->gregset_reg_offset = NULL;
+ tdep->gregset_num_regs = I386_NUM_GREGS;
+ tdep->sizeof_gregset = 0;
+
+ /* Floating-point registers. */
+ tdep->fpregset = NULL;
+ tdep->sizeof_fpregset = I387_SIZEOF_FSAVE;
+
+ /* The default settings include the FPU registers, the MMX registers
+ and the SSE registers. This can be overridden for a specific ABI
+ by adjusting the members `st0_regnum', `mm0_regnum' and
+ `num_xmm_regs' of `struct gdbarch_tdep', otherwise the registers
+ will show up in the output of "info all-registers". Ideally we
+ should try to autodetect whether they are available, such that we
+ can prevent "info all-registers" from displaying registers that
+ aren't available.
+
+ NOTE: kevinb/2003-07-13: ... if it's a choice between printing
+ [the SSE registers] always (even when they don't exist) or never
+ showing them to the user (even when they do exist), I prefer the
+ former over the latter. */
+
+ tdep->st0_regnum = I386_ST0_REGNUM;
+
+ /* The MMX registers are implemented as pseudo-registers. Put off
+ calculating the register number for %mm0 until we know the number
+ of raw registers. */
+ tdep->mm0_regnum = 0;
+
+ /* I386_NUM_XREGS includes %mxcsr, so substract one. */
+ tdep->num_xmm_regs = I386_NUM_XREGS - 1;
+
+ tdep->jb_pc_offset = -1;
+ tdep->struct_return = pcc_struct_return;
+ tdep->sigtramp_start = 0;
+ tdep->sigtramp_end = 0;
+ tdep->sigtramp_p = i386_sigtramp_p;
+ tdep->sigcontext_addr = NULL;
+ tdep->sc_reg_offset = NULL;
+ tdep->sc_pc_offset = -1;
+ tdep->sc_sp_offset = -1;
+
+ /* The format used for `long double' on almost all i386 targets is
+ the i387 extended floating-point format. In fact, of all targets
+ in the GCC 2.95 tree, only OSF/1 does it different, and insists
+ on having a `long double' that's not `long' at all. */
+ set_gdbarch_long_double_format (gdbarch, floatformats_i387_ext);
+
+ /* Although the i387 extended floating-point has only 80 significant
+ bits, a `long double' actually takes up 96, probably to enforce
+ alignment. */
+ set_gdbarch_long_double_bit (gdbarch, 96);
+
+ /* The default ABI includes general-purpose registers,
+ floating-point registers, and the SSE registers. */
+ set_gdbarch_num_regs (gdbarch, I386_SSE_NUM_REGS);
+ set_gdbarch_register_name (gdbarch, i386_register_name);
+ set_gdbarch_register_type (gdbarch, i386_register_type);
+
+ /* Register numbers of various important registers. */
+ set_gdbarch_sp_regnum (gdbarch, I386_ESP_REGNUM); /* %esp */
+ set_gdbarch_pc_regnum (gdbarch, I386_EIP_REGNUM); /* %eip */
+ set_gdbarch_ps_regnum (gdbarch, I386_EFLAGS_REGNUM); /* %eflags */
+ set_gdbarch_fp0_regnum (gdbarch, I386_ST0_REGNUM); /* %st(0) */
+
+ /* NOTE: kettenis/20040418: GCC does have two possible register
+ numbering schemes on the i386: dbx and SVR4. These schemes
+ differ in how they number %ebp, %esp, %eflags, and the
+ floating-point registers, and are implemented by the arrays
+ dbx_register_map[] and svr4_dbx_register_map in
+ gcc/config/i386.c. GCC also defines a third numbering scheme in
+ gcc/config/i386.c, which it designates as the "default" register
+ map used in 64bit mode. This last register numbering scheme is
+ implemented in dbx64_register_map, and is used for AMD64; see
+ amd64-tdep.c.
+
+ Currently, each GCC i386 target always uses the same register
+ numbering scheme across all its supported debugging formats
+ i.e. SDB (COFF), stabs and DWARF 2. This is because
+ gcc/sdbout.c, gcc/dbxout.c and gcc/dwarf2out.c all use the
+ DBX_REGISTER_NUMBER macro which is defined by each target's
+ respective config header in a manner independent of the requested
+ output debugging format.
+
+ This does not match the arrangement below, which presumes that
+ the SDB and stabs numbering schemes differ from the DWARF and
+ DWARF 2 ones. The reason for this arrangement is that it is
+ likely to get the numbering scheme for the target's
+ default/native debug format right. For targets where GCC is the
+ native compiler (FreeBSD, NetBSD, OpenBSD, GNU/Linux) or for
+ targets where the native toolchain uses a different numbering
+ scheme for a particular debug format (stabs-in-ELF on Solaris)
+ the defaults below will have to be overridden, like
+ i386_elf_init_abi() does. */
+
+ /* Use the dbx register numbering scheme for stabs and COFF. */
+ set_gdbarch_stab_reg_to_regnum (gdbarch, i386_dbx_reg_to_regnum);
+ set_gdbarch_sdb_reg_to_regnum (gdbarch, i386_dbx_reg_to_regnum);
+
+ /* Use the SVR4 register numbering scheme for DWARF 2. */
+ set_gdbarch_dwarf2_reg_to_regnum (gdbarch, i386_svr4_reg_to_regnum);
+
+ /* We don't set gdbarch_stab_reg_to_regnum, since ECOFF doesn't seem to
+ be in use on any of the supported i386 targets. */
+
+ set_gdbarch_print_float_info (gdbarch, i387_print_float_info);
+
+ set_gdbarch_get_longjmp_target (gdbarch, i386_get_longjmp_target);
+
+ /* Call dummy code. */
+ set_gdbarch_push_dummy_call (gdbarch, i386_push_dummy_call);
+
+ set_gdbarch_convert_register_p (gdbarch, i386_convert_register_p);
+ set_gdbarch_register_to_value (gdbarch, i386_register_to_value);
+ set_gdbarch_value_to_register (gdbarch, i386_value_to_register);
+
+ set_gdbarch_return_value (gdbarch, i386_return_value);
+
+ set_gdbarch_skip_prologue (gdbarch, i386_skip_prologue);
+
+ /* Stack grows downward. */
+ set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
+
+ set_gdbarch_breakpoint_from_pc (gdbarch, i386_breakpoint_from_pc);
+ set_gdbarch_decr_pc_after_break (gdbarch, 1);
+ set_gdbarch_max_insn_length (gdbarch, I386_MAX_INSN_LEN);
+
+ set_gdbarch_frame_args_skip (gdbarch, 8);
+
+ /* Wire in the MMX registers. */
+ set_gdbarch_num_pseudo_regs (gdbarch, i386_num_mmx_regs);
+ set_gdbarch_pseudo_register_read (gdbarch, i386_pseudo_register_read);
+ set_gdbarch_pseudo_register_write (gdbarch, i386_pseudo_register_write);
+
+ set_gdbarch_print_insn (gdbarch, i386_print_insn);
+
+ set_gdbarch_dummy_id (gdbarch, i386_dummy_id);
+
+ set_gdbarch_unwind_pc (gdbarch, i386_unwind_pc);
+
+ /* Add the i386 register groups. */
+ i386_add_reggroups (gdbarch);
+ set_gdbarch_register_reggroup_p (gdbarch, i386_register_reggroup_p);
/* Helper for function argument information. */
set_gdbarch_fetch_pointer_argument (gdbarch, i386_fetch_pointer_argument);
set_gdbarch_skip_permanent_breakpoint (gdbarch,
i386_skip_permanent_breakpoint);
+ set_gdbarch_process_record (gdbarch, i386_process_record);
+
return gdbarch;
}
projects / deliverable / binutils-gdb.git / commitdiff
