os/kernelhwsrv/kernel/eka/compsupp/rvct3_1/ucppinit.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
     1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
     2 // All rights reserved.
     3 // This component and the accompanying materials are made available
     4 // under the terms of the License "ARM EABI LICENCE.txt"
     5 // which accompanies this distribution, and is available
     6 // in kernel/eka/compsupp.
     7 //
     8 // Initial Contributors:
     9 // Nokia Corporation - initial contribution.
    10 //
    11 // Contributors:
    12 //
    13 // Description:
    14 // This file is part of usrt.lib and ksrt.lib.
    15 // 
    16 //
    17 
    18 
    19 extern "C" {
    20 
    21 // This calls each of the compiler constructed functions referenced from pi_ctorvec.
    22 // These functions arrange to 'call' the appropriate constructor for the 'static' instance
    23 // (in fact the call may be inlined). If the class of the instance has a destructor then 
    24 // compiler records that this object needs 'destructing' at 'exit' time. It does this by 
    25 // calling the function __cxa_atexit. We provide our own definition of this.
    26 // 
    27 
    28 
    29 __asm void __cpp_initialize__aeabi_()
    30     {
    31     CODE32
    32 
    33     IMPORT |SHT$$INIT_ARRAY$$Base|  [WEAK]
    34     IMPORT |SHT$$INIT_ARRAY$$Limit| [WEAK]
    35 
    36     // Export std::nothrow from here.
    37     EXPORT    _ZSt7nothrow
    38 
    39     STMFD    r13!,{r3-r5,r14}
    40 
    41     LDR      r4,base
    42     LDR      r5,limit
    43     CMP      r4,r5
    44     
    45     // Exit if the array is empty.
    46     LDMEQFD  r13!,{r3-r5,pc}
    47 
    48 loop
    49 	LDR      r0,[r4,#0]
    50     ADD      r0,r0,r4
    51 #ifdef __MARM_ARMV4__
    52     ADR      r14,ret
    53     MOV      pc,r0
    54 #else
    55     BLX      r0
    56 #endif
    57 
    58 ret
    59     ADD      r4,r4,#4
    60     CMP      r4,r5
    61     BNE      loop
    62     LDMFD    r13!,{r3-r5,pc}
    63 
    64 base
    65     DCD    |SHT$$INIT_ARRAY$$Base|
    66 limit
    67     DCD    |SHT$$INIT_ARRAY$$Limit|
    68 
    69 // cheat - defining this here saves a whole 4 bytes!!! - value is never used
    70 _ZSt7nothrow
    71     }
    72 
    73 
    74 } // extern "C"
    75