Return to aligned_data.s CVS log

Up to [Apple XNU] / XNU / osfmk / ppc

Annotation of XNU/osfmk/ppc/aligned_data.s, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  *             This module only exists because I don't know how to get the silly C compiler
        !            24:  *             and/or linker to generate data areas that are aligned on a particular boundary.
        !            25:  *             And, this stuff is in the V=R mapped area.
        !            26:  *
        !            27:  *             Do the following for each:
        !            28:  *
        !            29:  *                             .size   name,size-in-bytes
        !            30:  *                             .type   area-name,@object
        !            31:  *                             .globl  area-name
        !            32:  *                             .align  power-of-two
        !            33:  *             area-name:
        !            34:  *                             .set    .,.+size-in-bytes
        !            35:  *
        !            36:  *             So long as I'm being pedantic, always make sure that the most aligned,
        !            37:  *             i.e., the largest power-of-twos, are first and then descend to the smallest.
        !            38:  *             If you don't, and you are not careful and hand calculate, you'll end up
        !            39:  *             with holes and waste storage.  I hate C.
        !            40:  *
        !            41:  *             Define the sizes in genassym.c
        !            42:  */
        !            43:  
        !            44:                
        !            45: #include <cpus.h>
        !            46: #include <ppc/asm.h>
        !            47: #include <ppc/proc_reg.h>
        !            48: #include <assym.s>
        !            49: 
        !            50:                        .data
        !            51: 
        !            52: /*             256-byte aligned areas */
        !            53: 
        !            54:                .globl  EXT(GratefulDebWork)
        !            55:                .align  8
        !            56: EXT(GratefulDebWork):                                                          /* Enough for 2 rows of 8 chars of 16-pixel wide 32-bit pixels and a 256 byte work area */
        !            57:                .set    .,.+2560
        !            58: 
        !            59:                .globl  debstash
        !            60:                .align  8
        !            61: debstash:
        !            62:                .set    .,.+256
        !            63: 
        !            64:                .globl  EXT(hw_counts)                                          ; Counter banks per processor
        !            65:                .align  8
        !            66: EXT(hw_counts):
        !            67:                .set    .,.+(NCPUS*256)
        !            68: 
        !            69: #if 1
        !            70: 
        !            71:                .globl  EXT(DBGpreempt)                                         ; preemption debug stack
        !            72:                .align  8
        !            73: EXT(DBGpreempt):
        !            74:                .set    .,.+(NCPUS*256)
        !            75: #endif
        !            76: 
        !            77: 
        !            78: /*             32-byte aligned areas */
        !            79: 
        !            80:                .globl  EXT(saveanchor)
        !            81:                .align  5
        !            82: EXT(saveanchor):
        !            83:                .set    .,.+SVsize
        !            84: 
        !            85:                .globl  EXT(mapCtl)
        !            86:                .align  5
        !            87: EXT(mapCtl):
        !            88:                .set    .,.+mapcsize
        !            89: 
        !            90:                .globl  fwdisplock
        !            91:                .align  5
        !            92: fwdisplock:
        !            93:                .set    .,.+32
        !            94: 
        !            95:                .globl  hexfont
        !            96:                .align  5
        !            97: #include <ppc/hexfont.h>
        !            98: 
        !            99:     .globl  EXT(QNaNbarbarian)
        !           100:        .align  5
        !           101: 
        !           102: EXT(QNaNbarbarian):
        !           103:        .long   0x7FFFDEAD              /* This is a quiet not-a-number which is a "known" debug value */
        !           104:        .long   0x7FFFDEAD              /* This is a quiet not-a-number which is a "known" debug value */
        !           105:        .long   0x7FFFDEAD              /* This is a quiet not-a-number which is a "known" debug value */
        !           106:        .long   0x7FFFDEAD              /* This is a quiet not-a-number which is a "known" debug value */
        !           107: 
        !           108:        .long   0x7FFFDEAD              /* This is a quiet not-a-number which is a "known" debug value */
        !           109:        .long   0x7FFFDEAD              /* This is a quiet not-a-number which is a "known" debug value */
        !           110:        .long   0x7FFFDEAD              /* This is a quiet not-a-number which is a "known" debug value */
        !           111:        .long   0x7FFFDEAD              /* This is a quiet not-a-number which is a "known" debug value */
        !           112: 
        !           113:        .globl  EXT(free_mappings)
        !           114:        .align  5
        !           115:        
        !           116: EXT(free_mappings):
        !           117:        .long   0
        !           118: 
        !           119: 
        !           120:        .globl  EXT(dbvecs)
        !           121:        .align  5
        !           122: EXT(dbvecs):
        !           123:        .set    .,.+(33*16)
        !           124: 
        !           125: 
        !           126: 
        !           127: /*             8-byte aligned areas */
        !           128: 
        !           129:     .globl  EXT(FloatInit)
        !           130:        .align  3
        !           131: 
        !           132: EXT(FloatInit):
        !           133:        .long   0xC24BC195              /* Initial value */
        !           134:        .long   0x87859393              /* of floating point registers */
        !           135:        .long   0xE681A2C8              /* and others */
        !           136:        .long   0x8599855A
        !           137: 
        !           138:     .globl  EXT(DebugWork)
        !           139:        .align  3
        !           140: 
        !           141: EXT(DebugWork):
        !           142:        .long   0
        !           143:        .long   0
        !           144:        .long   0
        !           145:        .long   0
        !           146: 
        !           147:     .globl  EXT(dbfloats)
        !           148:        .align  3
        !           149: EXT(dbfloats):
        !           150:                .set    .,.+(33*8)
        !           151: 
        !           152:     .globl  EXT(dbspecrs)
        !           153:        .align  3
        !           154: EXT(dbspecrs):
        !           155:                .set    .,.+(40*4)

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.