FreeBSD/Linux Kernel Cross Reference
sys/cddl/contrib/opensolaris/uts/arm/sys/fasttrap_isa.h

     /*
      * CDDL HEADER START
      *
      * The contents of this file are subject to the terms of the
      * Common Development and Distribution License, Version 1.0 only
      * (the "License").  You may not use this file except in compliance
      * with the License.
      *
      * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     * or http://www.opensolaris.org/os/licensing.
     * See the License for the specific language governing permissions
     * and limitations under the License.
     *
     * When distributing Covered Code, include this CDDL HEADER in each
     * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     * If applicable, add the following below this CDDL HEADER, with the
     * fields enclosed by brackets "[]" replaced with your own identifying
     * information: Portions Copyright [yyyy] [name of copyright owner]
     *
     * CDDL HEADER END
     */
    /*
     * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
     * Use is subject to license terms.
     */
    
    #ifndef _FASTTRAP_ISA_H
    #define _FASTTRAP_ISA_H
    
    #pragma ident   "%Z%%M% %I%     %E% SMI"
    
    #include <sys/types.h>
    
    #ifdef  __cplusplus
    extern "C" {
    #endif
    
    /*
     * This is our reserved trap instruction: ta 0x38
     */
    #define FASTTRAP_INSTR                  0x91d02038
    
    #define FASTTRAP_SUNWDTRACE_SIZE        128
    
    typedef uint32_t        fasttrap_instr_t;
    
    typedef struct fasttrap_machtp {
            fasttrap_instr_t        ftmt_instr;     /* original instruction */
            uintptr_t               ftmt_dest;      /* destination of DCTI */
            uint8_t                 ftmt_type;      /* emulation type */
            uint8_t                 ftmt_flags;     /* emulation flags */
            uint8_t                 ftmt_cc;        /* which cc to look at */
            uint8_t                 ftmt_code;      /* branch condition */
    } fasttrap_machtp_t;
    
    #define ftt_instr       ftt_mtp.ftmt_instr
    #define ftt_dest        ftt_mtp.ftmt_dest
    #define ftt_type        ftt_mtp.ftmt_type
    #define ftt_flags       ftt_mtp.ftmt_flags
    #define ftt_cc          ftt_mtp.ftmt_cc
    #define ftt_code        ftt_mtp.ftmt_code
    
    #define FASTTRAP_T_COMMON       0x00    /* common case -- no emulation */
    #define FASTTRAP_T_CCR          0x01    /* integer condition code branch */
    #define FASTTRAP_T_FCC          0x02    /* floating-point branch */
    #define FASTTRAP_T_REG          0x03    /* register predicated branch */
    #define FASTTRAP_T_ALWAYS       0x04    /* branch always */
    #define FASTTRAP_T_CALL         0x05    /* call instruction */
    #define FASTTRAP_T_JMPL         0x06    /* jmpl instruction */
    #define FASTTRAP_T_RDPC         0x07    /* rdpc instruction */
    #define FASTTRAP_T_RETURN       0x08    /* return instruction */
    
    /*
     * For performance rather than correctness.
     */
    #define FASTTRAP_T_SAVE         0x10    /* save instruction (func entry only) */
    #define FASTTRAP_T_RESTORE      0x11    /* restore instruction */
    #define FASTTRAP_T_OR           0x12    /* mov instruction */
    #define FASTTRAP_T_SETHI        0x13    /* sethi instruction (includes nop) */
    
    #define FASTTRAP_F_ANNUL        0x01    /* branch is annulled */
    #define FASTTRAP_F_RETMAYBE     0x02    /* not definitely a return site */
    
    #define FASTTRAP_AFRAMES                3
    #define FASTTRAP_RETURN_AFRAMES         4
    #define FASTTRAP_ENTRY_AFRAMES          3
    #define FASTTRAP_OFFSET_AFRAMES         3
    
    
    #ifdef  __cplusplus
    }
    #endif
    
    #endif  /* _FASTTRAP_ISA_H */

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