/* Target-dependent code for the i386.
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/* Target-dependent code for the i386.
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Copyright (C) 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010
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Copyright (C) 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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This file is part of GDB.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef I386_TDEP_H
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#ifndef I386_TDEP_H
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#define I386_TDEP_H
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#define I386_TDEP_H
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struct frame_info;
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struct frame_info;
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struct gdbarch;
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struct gdbarch;
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struct reggroup;
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struct reggroup;
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struct regset;
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struct regset;
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struct regcache;
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struct regcache;
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/* GDB's i386 target supports both the 32-bit Intel Architecture
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/* GDB's i386 target supports both the 32-bit Intel Architecture
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(IA-32) and the 64-bit AMD x86-64 architecture. Internally it uses
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(IA-32) and the 64-bit AMD x86-64 architecture. Internally it uses
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a similar register layout for both.
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a similar register layout for both.
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- General purpose registers
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- General purpose registers
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- FPU data registers
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- FPU data registers
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- FPU control registers
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- FPU control registers
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- SSE data registers
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- SSE data registers
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- SSE control register
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- SSE control register
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The general purpose registers for the x86-64 architecture are quite
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The general purpose registers for the x86-64 architecture are quite
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different from IA-32. Therefore, gdbarch_fp0_regnum
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different from IA-32. Therefore, gdbarch_fp0_regnum
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determines the register number at which the FPU data registers
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determines the register number at which the FPU data registers
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start. The number of FPU data and control registers is the same
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start. The number of FPU data and control registers is the same
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for both architectures. The number of SSE registers however,
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for both architectures. The number of SSE registers however,
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differs and is determined by the num_xmm_regs member of `struct
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differs and is determined by the num_xmm_regs member of `struct
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gdbarch_tdep'. */
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gdbarch_tdep'. */
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/* Convention for returning structures. */
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/* Convention for returning structures. */
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enum struct_return
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enum struct_return
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{
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{
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pcc_struct_return, /* Return "short" structures in memory. */
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pcc_struct_return, /* Return "short" structures in memory. */
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reg_struct_return /* Return "short" structures in registers. */
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reg_struct_return /* Return "short" structures in registers. */
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};
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};
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/* Register classes as defined in the AMD x86-64 psABI. */
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/* Register classes as defined in the AMD x86-64 psABI. */
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enum amd64_reg_class
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enum amd64_reg_class
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{
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{
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AMD64_INTEGER,
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AMD64_INTEGER,
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AMD64_SSE,
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AMD64_SSE,
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AMD64_SSEUP,
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AMD64_SSEUP,
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AMD64_X87,
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AMD64_X87,
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AMD64_X87UP,
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AMD64_X87UP,
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AMD64_COMPLEX_X87,
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AMD64_COMPLEX_X87,
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AMD64_NO_CLASS,
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AMD64_NO_CLASS,
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AMD64_MEMORY
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AMD64_MEMORY
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};
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};
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/* i386 architecture specific information. */
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/* i386 architecture specific information. */
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struct gdbarch_tdep
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struct gdbarch_tdep
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{
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{
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/* General-purpose registers. */
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/* General-purpose registers. */
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struct regset *gregset;
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struct regset *gregset;
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int *gregset_reg_offset;
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int *gregset_reg_offset;
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int gregset_num_regs;
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int gregset_num_regs;
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size_t sizeof_gregset;
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size_t sizeof_gregset;
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/* The general-purpose registers used to pass integers when making
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/* The general-purpose registers used to pass integers when making
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function calls. This only applies to amd64, as all parameters
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function calls. This only applies to amd64, as all parameters
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are passed through the stack on x86. */
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are passed through the stack on x86. */
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int call_dummy_num_integer_regs;
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int call_dummy_num_integer_regs;
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int *call_dummy_integer_regs;
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int *call_dummy_integer_regs;
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/* Used on amd64 only. Classify TYPE according to calling conventions,
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/* Used on amd64 only. Classify TYPE according to calling conventions,
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and store the result in CLASS. */
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and store the result in CLASS. */
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void (*classify) (struct type *type, enum amd64_reg_class class[2]);
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void (*classify) (struct type *type, enum amd64_reg_class class[2]);
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/* Used on amd64 only. Non-zero if the first few MEMORY arguments
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/* Used on amd64 only. Non-zero if the first few MEMORY arguments
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should be passed by pointer.
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should be passed by pointer.
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More precisely, MEMORY arguments are passed through the stack.
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More precisely, MEMORY arguments are passed through the stack.
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But certain architectures require that their address be passed
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But certain architectures require that their address be passed
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by register as well, if there are still some integer registers
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by register as well, if there are still some integer registers
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available for argument passing. */
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available for argument passing. */
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int memory_args_by_pointer;
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int memory_args_by_pointer;
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/* Used on amd64 only.
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/* Used on amd64 only.
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If non-zero, then the callers of a function are expected to reserve
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If non-zero, then the callers of a function are expected to reserve
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some space in the stack just before the area where the PC is saved
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some space in the stack just before the area where the PC is saved
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so that the callee may save the integer-parameter registers there.
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so that the callee may save the integer-parameter registers there.
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The amount of space is dependent on the list of registers used for
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The amount of space is dependent on the list of registers used for
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integer parameter passing (see component call_dummy_num_integer_regs
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integer parameter passing (see component call_dummy_num_integer_regs
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above). */
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above). */
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int integer_param_regs_saved_in_caller_frame;
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int integer_param_regs_saved_in_caller_frame;
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/* Floating-point registers. */
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/* Floating-point registers. */
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struct regset *fpregset;
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struct regset *fpregset;
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size_t sizeof_fpregset;
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size_t sizeof_fpregset;
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/* Register number for %st(0). The register numbers for the other
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/* Register number for %st(0). The register numbers for the other
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registers follow from this one. Set this to -1 to indicate the
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registers follow from this one. Set this to -1 to indicate the
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absence of an FPU. */
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absence of an FPU. */
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int st0_regnum;
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int st0_regnum;
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/* Register number for %mm0. Set this to -1 to indicate the absence
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/* Register number for %mm0. Set this to -1 to indicate the absence
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of MMX support. */
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of MMX support. */
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int mm0_regnum;
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int mm0_regnum;
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/* Number of SSE registers. */
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/* Number of SSE registers. */
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int num_xmm_regs;
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int num_xmm_regs;
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/* Offset of saved PC in jmp_buf. */
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/* Offset of saved PC in jmp_buf. */
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int jb_pc_offset;
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int jb_pc_offset;
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/* Convention for returning structures. */
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/* Convention for returning structures. */
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enum struct_return struct_return;
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enum struct_return struct_return;
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/* Address range where sigtramp lives. */
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/* Address range where sigtramp lives. */
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CORE_ADDR sigtramp_start;
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CORE_ADDR sigtramp_start;
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CORE_ADDR sigtramp_end;
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CORE_ADDR sigtramp_end;
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/* Detect sigtramp. */
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/* Detect sigtramp. */
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int (*sigtramp_p) (struct frame_info *);
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int (*sigtramp_p) (struct frame_info *);
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/* Get address of sigcontext for sigtramp. */
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/* Get address of sigcontext for sigtramp. */
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CORE_ADDR (*sigcontext_addr) (struct frame_info *);
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CORE_ADDR (*sigcontext_addr) (struct frame_info *);
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/* Offset of registers in `struct sigcontext'. */
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/* Offset of registers in `struct sigcontext'. */
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int *sc_reg_offset;
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int *sc_reg_offset;
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int sc_num_regs;
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int sc_num_regs;
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/* Offset of saved PC and SP in `struct sigcontext'. Usage of these
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/* Offset of saved PC and SP in `struct sigcontext'. Usage of these
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is deprecated, please use `sc_reg_offset' instead. */
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is deprecated, please use `sc_reg_offset' instead. */
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int sc_pc_offset;
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int sc_pc_offset;
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int sc_sp_offset;
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int sc_sp_offset;
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/* ISA-specific data types. */
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/* ISA-specific data types. */
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struct type *i386_eflags_type;
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struct type *i386_eflags_type;
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struct type *i386_mxcsr_type;
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struct type *i386_mxcsr_type;
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struct type *i386_mmx_type;
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struct type *i386_mmx_type;
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struct type *i386_sse_type;
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struct type *i386_sse_type;
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struct type *i387_ext_type;
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struct type *i387_ext_type;
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/* Process record/replay target. */
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/* Process record/replay target. */
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/* The map for registers because the AMD64's registers order
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/* The map for registers because the AMD64's registers order
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in GDB is not same as I386 instructions. */
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in GDB is not same as I386 instructions. */
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const int *record_regmap;
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const int *record_regmap;
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/* Parse intx80 args. */
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/* Parse intx80 args. */
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int (*i386_intx80_record) (struct regcache *regcache);
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int (*i386_intx80_record) (struct regcache *regcache);
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/* Parse sysenter args. */
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/* Parse sysenter args. */
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int (*i386_sysenter_record) (struct regcache *regcache);
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int (*i386_sysenter_record) (struct regcache *regcache);
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/* Parse syscall args. */
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/* Parse syscall args. */
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int (*i386_syscall_record) (struct regcache *regcache);
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int (*i386_syscall_record) (struct regcache *regcache);
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};
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};
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/* Floating-point registers. */
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/* Floating-point registers. */
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/* All FPU control regusters (except for FIOFF and FOOFF) are 16-bit
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/* All FPU control regusters (except for FIOFF and FOOFF) are 16-bit
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(at most) in the FPU, but are zero-extended to 32 bits in GDB's
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(at most) in the FPU, but are zero-extended to 32 bits in GDB's
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register cache. */
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register cache. */
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/* Return non-zero if REGNUM matches the FP register and the FP
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/* Return non-zero if REGNUM matches the FP register and the FP
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register set is active. */
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register set is active. */
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extern int i386_fp_regnum_p (struct gdbarch *, int);
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extern int i386_fp_regnum_p (struct gdbarch *, int);
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extern int i386_fpc_regnum_p (struct gdbarch *, int);
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extern int i386_fpc_regnum_p (struct gdbarch *, int);
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/* Register numbers of various important registers. */
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/* Register numbers of various important registers. */
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enum i386_regnum
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enum i386_regnum
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{
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{
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I386_EAX_REGNUM, /* %eax */
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I386_EAX_REGNUM, /* %eax */
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I386_ECX_REGNUM, /* %ecx */
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I386_ECX_REGNUM, /* %ecx */
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I386_EDX_REGNUM, /* %edx */
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I386_EDX_REGNUM, /* %edx */
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I386_EBX_REGNUM, /* %ebx */
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I386_EBX_REGNUM, /* %ebx */
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I386_ESP_REGNUM, /* %esp */
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I386_ESP_REGNUM, /* %esp */
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I386_EBP_REGNUM, /* %ebp */
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I386_EBP_REGNUM, /* %ebp */
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I386_ESI_REGNUM, /* %esi */
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I386_ESI_REGNUM, /* %esi */
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I386_EDI_REGNUM, /* %edi */
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I386_EDI_REGNUM, /* %edi */
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I386_EIP_REGNUM, /* %eip */
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I386_EIP_REGNUM, /* %eip */
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I386_EFLAGS_REGNUM, /* %eflags */
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I386_EFLAGS_REGNUM, /* %eflags */
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I386_CS_REGNUM, /* %cs */
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I386_CS_REGNUM, /* %cs */
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I386_SS_REGNUM, /* %ss */
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I386_SS_REGNUM, /* %ss */
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I386_DS_REGNUM, /* %ds */
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I386_DS_REGNUM, /* %ds */
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I386_ES_REGNUM, /* %es */
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I386_ES_REGNUM, /* %es */
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I386_FS_REGNUM, /* %fs */
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I386_FS_REGNUM, /* %fs */
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I386_GS_REGNUM, /* %gs */
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I386_GS_REGNUM, /* %gs */
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I386_ST0_REGNUM /* %st(0) */
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I386_ST0_REGNUM /* %st(0) */
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};
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};
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/* Register numbers of RECORD_REGMAP. */
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/* Register numbers of RECORD_REGMAP. */
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enum record_i386_regnum
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enum record_i386_regnum
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{
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{
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X86_RECORD_REAX_REGNUM,
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X86_RECORD_REAX_REGNUM,
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X86_RECORD_RECX_REGNUM,
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X86_RECORD_RECX_REGNUM,
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X86_RECORD_REDX_REGNUM,
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X86_RECORD_REDX_REGNUM,
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X86_RECORD_REBX_REGNUM,
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X86_RECORD_REBX_REGNUM,
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X86_RECORD_RESP_REGNUM,
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X86_RECORD_RESP_REGNUM,
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X86_RECORD_REBP_REGNUM,
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X86_RECORD_REBP_REGNUM,
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X86_RECORD_RESI_REGNUM,
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X86_RECORD_RESI_REGNUM,
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X86_RECORD_REDI_REGNUM,
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X86_RECORD_REDI_REGNUM,
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X86_RECORD_R8_REGNUM,
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X86_RECORD_R8_REGNUM,
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X86_RECORD_R9_REGNUM,
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X86_RECORD_R9_REGNUM,
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X86_RECORD_R10_REGNUM,
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X86_RECORD_R10_REGNUM,
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X86_RECORD_R11_REGNUM,
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X86_RECORD_R11_REGNUM,
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X86_RECORD_R12_REGNUM,
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X86_RECORD_R12_REGNUM,
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X86_RECORD_R13_REGNUM,
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X86_RECORD_R13_REGNUM,
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X86_RECORD_R14_REGNUM,
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X86_RECORD_R14_REGNUM,
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X86_RECORD_R15_REGNUM,
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X86_RECORD_R15_REGNUM,
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X86_RECORD_REIP_REGNUM,
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X86_RECORD_REIP_REGNUM,
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X86_RECORD_EFLAGS_REGNUM,
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X86_RECORD_EFLAGS_REGNUM,
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X86_RECORD_CS_REGNUM,
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X86_RECORD_CS_REGNUM,
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X86_RECORD_SS_REGNUM,
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X86_RECORD_SS_REGNUM,
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X86_RECORD_DS_REGNUM,
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X86_RECORD_DS_REGNUM,
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X86_RECORD_ES_REGNUM,
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X86_RECORD_ES_REGNUM,
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X86_RECORD_FS_REGNUM,
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X86_RECORD_FS_REGNUM,
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X86_RECORD_GS_REGNUM,
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X86_RECORD_GS_REGNUM,
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};
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};
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#define I386_NUM_GREGS 16
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#define I386_NUM_GREGS 16
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#define I386_NUM_FREGS 16
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#define I386_NUM_FREGS 16
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#define I386_NUM_XREGS 9
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#define I386_NUM_XREGS 9
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#define I386_SSE_NUM_REGS (I386_NUM_GREGS + I386_NUM_FREGS \
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#define I386_SSE_NUM_REGS (I386_NUM_GREGS + I386_NUM_FREGS \
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+ I386_NUM_XREGS)
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+ I386_NUM_XREGS)
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/* Size of the largest register. */
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/* Size of the largest register. */
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#define I386_MAX_REGISTER_SIZE 16
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#define I386_MAX_REGISTER_SIZE 16
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/* Types for i386-specific registers. */
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/* Types for i386-specific registers. */
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extern struct type *i386_eflags_type (struct gdbarch *gdbarch);
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extern struct type *i386_eflags_type (struct gdbarch *gdbarch);
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extern struct type *i386_mxcsr_type (struct gdbarch *gdbarch);
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extern struct type *i386_mxcsr_type (struct gdbarch *gdbarch);
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extern struct type *i386_mmx_type (struct gdbarch *gdbarch);
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extern struct type *i386_mmx_type (struct gdbarch *gdbarch);
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extern struct type *i386_sse_type (struct gdbarch *gdbarch);
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extern struct type *i386_sse_type (struct gdbarch *gdbarch);
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extern struct type *i387_ext_type (struct gdbarch *gdbarch);
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extern struct type *i387_ext_type (struct gdbarch *gdbarch);
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/* Segment selectors. */
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/* Segment selectors. */
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#define I386_SEL_RPL 0x0003 /* Requester's Privilege Level mask. */
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#define I386_SEL_RPL 0x0003 /* Requester's Privilege Level mask. */
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#define I386_SEL_UPL 0x0003 /* User Privilige Level. */
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#define I386_SEL_UPL 0x0003 /* User Privilige Level. */
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#define I386_SEL_KPL 0x0000 /* Kernel Privilige Level. */
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#define I386_SEL_KPL 0x0000 /* Kernel Privilige Level. */
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/* The length of the longest i386 instruction (according to
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/* The length of the longest i386 instruction (according to
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include/asm-i386/kprobes.h in Linux 2.6. */
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include/asm-i386/kprobes.h in Linux 2.6. */
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#define I386_MAX_INSN_LEN (16)
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#define I386_MAX_INSN_LEN (16)
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/* Functions exported from i386-tdep.c. */
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/* Functions exported from i386-tdep.c. */
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extern CORE_ADDR i386_pe_skip_trampoline_code (struct frame_info *frame,
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extern CORE_ADDR i386_pe_skip_trampoline_code (struct frame_info *frame,
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CORE_ADDR pc, char *name);
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CORE_ADDR pc, char *name);
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extern CORE_ADDR i386_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR pc);
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extern CORE_ADDR i386_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR pc);
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/* Return whether the THIS_FRAME corresponds to a sigtramp routine. */
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/* Return whether the THIS_FRAME corresponds to a sigtramp routine. */
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extern int i386_sigtramp_p (struct frame_info *this_frame);
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extern int i386_sigtramp_p (struct frame_info *this_frame);
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/* Return the name of register REGNUM. */
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/* Return the name of register REGNUM. */
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extern char const *i386_register_name (struct gdbarch * gdbarch, int regnum);
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extern char const *i386_register_name (struct gdbarch * gdbarch, int regnum);
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/* Return non-zero if REGNUM is a member of the specified group. */
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/* Return non-zero if REGNUM is a member of the specified group. */
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extern int i386_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
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extern int i386_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
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struct reggroup *group);
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struct reggroup *group);
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/* Supply register REGNUM from the general-purpose register set REGSET
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/* Supply register REGNUM from the general-purpose register set REGSET
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to register cache REGCACHE. If REGNUM is -1, do this for all
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to register cache REGCACHE. If REGNUM is -1, do this for all
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registers in REGSET. */
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registers in REGSET. */
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extern void i386_supply_gregset (const struct regset *regset,
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extern void i386_supply_gregset (const struct regset *regset,
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struct regcache *regcache, int regnum,
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struct regcache *regcache, int regnum,
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const void *gregs, size_t len);
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const void *gregs, size_t len);
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/* Collect register REGNUM from the register cache REGCACHE and store
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/* Collect register REGNUM from the register cache REGCACHE and store
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it in the buffer specified by GREGS and LEN as described by the
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it in the buffer specified by GREGS and LEN as described by the
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general-purpose register set REGSET. If REGNUM is -1, do this for
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general-purpose register set REGSET. If REGNUM is -1, do this for
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all registers in REGSET. */
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all registers in REGSET. */
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extern void i386_collect_gregset (const struct regset *regset,
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extern void i386_collect_gregset (const struct regset *regset,
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const struct regcache *regcache,
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const struct regcache *regcache,
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int regnum, void *gregs, size_t len);
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int regnum, void *gregs, size_t len);
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/* Return the appropriate register set for the core section identified
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/* Return the appropriate register set for the core section identified
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by SECT_NAME and SECT_SIZE. */
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by SECT_NAME and SECT_SIZE. */
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extern const struct regset *
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extern const struct regset *
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i386_regset_from_core_section (struct gdbarch *gdbarch,
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i386_regset_from_core_section (struct gdbarch *gdbarch,
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const char *sect_name, size_t sect_size);
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const char *sect_name, size_t sect_size);
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extern void i386_displaced_step_fixup (struct gdbarch *gdbarch,
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extern void i386_displaced_step_fixup (struct gdbarch *gdbarch,
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struct displaced_step_closure *closure,
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struct displaced_step_closure *closure,
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CORE_ADDR from, CORE_ADDR to,
|
CORE_ADDR from, CORE_ADDR to,
|
struct regcache *regs);
|
struct regcache *regs);
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/* Initialize a basic ELF architecture variant. */
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/* Initialize a basic ELF architecture variant. */
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extern void i386_elf_init_abi (struct gdbarch_info, struct gdbarch *);
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extern void i386_elf_init_abi (struct gdbarch_info, struct gdbarch *);
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|
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/* Initialize a SVR4 architecture variant. */
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/* Initialize a SVR4 architecture variant. */
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extern void i386_svr4_init_abi (struct gdbarch_info, struct gdbarch *);
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extern void i386_svr4_init_abi (struct gdbarch_info, struct gdbarch *);
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|
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extern int i386_process_record (struct gdbarch *gdbarch,
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extern int i386_process_record (struct gdbarch *gdbarch,
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struct regcache *regcache, CORE_ADDR addr);
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struct regcache *regcache, CORE_ADDR addr);
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|
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|
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/* Functions and variables exported from i386bsd-tdep.c. */
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/* Functions and variables exported from i386bsd-tdep.c. */
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|
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extern void i386bsd_init_abi (struct gdbarch_info, struct gdbarch *);
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extern void i386bsd_init_abi (struct gdbarch_info, struct gdbarch *);
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extern CORE_ADDR i386fbsd_sigtramp_start_addr;
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extern CORE_ADDR i386fbsd_sigtramp_start_addr;
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extern CORE_ADDR i386fbsd_sigtramp_end_addr;
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extern CORE_ADDR i386fbsd_sigtramp_end_addr;
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extern CORE_ADDR i386obsd_sigtramp_start_addr;
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extern CORE_ADDR i386obsd_sigtramp_start_addr;
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extern CORE_ADDR i386obsd_sigtramp_end_addr;
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extern CORE_ADDR i386obsd_sigtramp_end_addr;
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extern int i386fbsd4_sc_reg_offset[];
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extern int i386fbsd4_sc_reg_offset[];
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extern int i386fbsd_sc_reg_offset[];
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extern int i386fbsd_sc_reg_offset[];
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extern int i386nbsd_sc_reg_offset[];
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extern int i386nbsd_sc_reg_offset[];
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extern int i386obsd_sc_reg_offset[];
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extern int i386obsd_sc_reg_offset[];
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extern int i386bsd_sc_reg_offset[];
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extern int i386bsd_sc_reg_offset[];
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|
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#endif /* i386-tdep.h */
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#endif /* i386-tdep.h */
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