FreeBSD/Linux Kernel Cross Reference
sys/x86/include/frame.h

     /*-
      * SPDX-License-Identifier: BSD-3-Clause
      *
      * Copyright (c) 2003 Peter Wemm.
      * Copyright (c) 1990 The Regents of the University of California.
      * All rights reserved.
      *
      * This code is derived from software contributed to Berkeley by
      * William Jolitz.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      from: @(#)frame.h       5.2 (Berkeley) 1/18/91
     * $FreeBSD$
     */
    
    #ifndef _MACHINE_FRAME_H_
    #define _MACHINE_FRAME_H_ 1
    
    /*
     * System stack frames.
     */
    
    #ifdef __i386__
    /*
     * Exception/Trap Stack Frame
     */
    
    struct trapframe {
            int     tf_fs;
            int     tf_es;
            int     tf_ds;
            int     tf_edi;
            int     tf_esi;
            int     tf_ebp;
            int     tf_isp;
            int     tf_ebx;
            int     tf_edx;
            int     tf_ecx;
            int     tf_eax;
            int     tf_trapno;
            /* below portion defined in 386 hardware */
            int     tf_err;
            int     tf_eip;
            int     tf_cs;
            int     tf_eflags;
            /* below only when crossing rings (user to kernel) */
            int     tf_esp;
            int     tf_ss;
    };
    
    /* Superset of trap frame, for traps from virtual-8086 mode */
    
    struct trapframe_vm86 {
            int     tf_fs;
            int     tf_es;
            int     tf_ds;
            int     tf_edi;
            int     tf_esi;
            int     tf_ebp;
            int     tf_isp;
            int     tf_ebx;
            int     tf_edx;
            int     tf_ecx;
            int     tf_eax;
            int     tf_trapno;
            /* below portion defined in 386 hardware */
            int     tf_err;
            int     tf_eip;
            int     tf_cs;
            int     tf_eflags;
            /* below only when crossing rings (user (including vm86) to kernel) */
            int     tf_esp;
            int     tf_ss;
            /* below only when crossing from vm86 mode to kernel */
            int     tf_vm86_es;
            int     tf_vm86_ds;
           int     tf_vm86_fs;
           int     tf_vm86_gs;
   };
   
   /*
    * This alias for the MI TRAPF_USERMODE() should be used when we don't
    * care about user mode itself, but need to know if a frame has stack
    * registers.  The difference is only logical, but on i386 the logic
    * for using TRAPF_USERMODE() is complicated by sometimes treating vm86
    * bioscall mode (which is a special ring 3 user mode) as kernel mode.
    */
   #define TF_HAS_STACKREGS(tf)    TRAPF_USERMODE(tf)
   #endif /* __i386__ */
   
   #ifdef __amd64__
   /*
    * Exception/Trap Stack Frame
    *
    * The ordering of this is specifically so that we can take first 6
    * the syscall arguments directly from the beginning of the frame.
    */
   
   struct trapframe {
           register_t      tf_rdi;
           register_t      tf_rsi;
           register_t      tf_rdx;
           register_t      tf_rcx;
           register_t      tf_r8;
           register_t      tf_r9;
           register_t      tf_rax;
           register_t      tf_rbx;
           register_t      tf_rbp;
           register_t      tf_r10;
           register_t      tf_r11;
           register_t      tf_r12;
           register_t      tf_r13;
           register_t      tf_r14;
           register_t      tf_r15;
           uint32_t        tf_trapno;
           uint16_t        tf_fs;
           uint16_t        tf_gs;
           register_t      tf_addr;
           uint32_t        tf_flags;
           uint16_t        tf_es;
           uint16_t        tf_ds;
           /* below portion defined in hardware */
           register_t      tf_err;
           register_t      tf_rip;
           register_t      tf_cs;
           register_t      tf_rflags;
           /* the amd64 frame always has the stack registers */
           register_t      tf_rsp;
           register_t      tf_ss;
   };
   
   #define TF_HASSEGS      0x1
   #define TF_HASBASES     0x2
   #define TF_HASFPXSTATE  0x4
   #endif /* __amd64__ */
   
   #endif /* _MACHINE_FRAME_H_ */

Cache object: e824e3bfac7e956570df8688e1073ff1