1 // Copyright (c) 2003-2009 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 // toplevel initialization/destruction routines for 'user side' code compiled 

    15 // with the ARMCC EABI compiler. intended for static linking

    16 // The code supports 2.2 both bpabi and non-bpabi. The values in .init_array are

    17 // pointers in both environments, so the library is common to both.

    18 // 

    19 //

    20 

    21 extern "C" {

    22 

    23 // This calls each of the compiler constructed functions referenced from pi_ctorvec.

    24 // These functions arrange to 'call' the appropriate constructor for the 'static' instance

    25 // (in fact the call may be inlined). If the class of the instance has a destructor then 

    26 // compiler records that this object needs 'destructing' at 'exit' time. It does this by 

    27 // calling the function __cxa_atexit. We provide our own definition of this.

    28 // 

    29 

    30 #ifdef __thumb

    31   __asm void __cpp_initialize__aeabi_(void)

    32     {

    33     CODE16

    34 #ifndef _NO_FP

    35     IMPORT    _fp_init [WEAK]

    36 #endif

    37     IMPORT    |SHT$$INIT_ARRAY$$Base| [WEAK]

    38     IMPORT    |SHT$$INIT_ARRAY$$Limit| [WEAK]

    39 

    40     // export std::nothrow from here

    41     EXPORT    _ZSt7nothrow

    42 

    43 #ifndef _NO_FP

    44     LDR      r0,fpinit

    45 #endif

    46     PUSH     {r4-r6,r14}

    47 #ifndef _NO_FP

    48     CMP      r0,#0

    49     BEQ      skip

    50     BL       _fp_init  ;

    51 skip

    52 #endif

    53     LDR      r4,base

    54     LDR      r5,limit

    55     B        check

    56 loop

    57     LDR      r0,[r4,#0]

    58 

    59     BLX      r0

    60     ADD      r4,#4

    61 check

    62     CMP      r4,r5

    63     BCC      loop

    64     POP      {r4-r6,pc}

    65 

    66 #ifndef _NO_FP

    67     ALIGN 4 

    68 fpinit

    69     DCD    _fp_init

    70 #endif

    71 

    72 // cheat - saved a whole 4 bytes!!! - value is never used

    73 _ZSt7nothrow

    74 base

    75     DCD    |SHT$$INIT_ARRAY$$Base|

    76 limit

    77     DCD    |SHT$$INIT_ARRAY$$Limit|

    78 

    79     }

    80 

    81 #else

    82   __asm void __cpp_initialize__aeabi_(void)

    83     {

    84     CODE32

    85 #ifndef _NO_FP

    86     IMPORT    _fp_init [WEAK]

    87 #endif

    88     IMPORT    |SHT$$INIT_ARRAY$$Base| [WEAK]

    89     IMPORT    |SHT$$INIT_ARRAY$$Limit| [WEAK]

    90 

    91     // export std::nothrow from here

    92     EXPORT    _ZSt7nothrow

    93 

    94 #ifndef _NO_FP

    95     LDR	     r0, fpinit

    96 #endif

    97     STMFD    r13!,{r3-r5,r14}

    98 #ifndef _NO_FP

    99     CMP      r0, #0

   100     BEQ	     skip

   101     BL	     _fp_init

   102 skip

   103 #endif

   104     LDR      r4,base

   105     LDR      r5,limit

   106     CMP      r4,r5

   107     LDMEQFD  r13!,{r3-r5,pc}

   108 loop

   109 	LDR      r0,[r4,#0]

   110 #ifdef __MARM_ARMV4__

   111     ADR      r14,ret

   112     MOV      pc,r0

   113 #else

   114     BLX      r0

   115 #endif

   116 ret

   117     ADD      r4,r4,#4

   118     CMP      r4,r5

   119     BNE      loop

   120     LDMFD    r13!,{r3-r5,pc}

   121 

   122 #ifndef _NO_FP

   123 fpinit

   124     DCD    _fp_init

   125 #endif

   126 

   127 base

   128     DCD    |SHT$$INIT_ARRAY$$Base|

   129 limit

   130     DCD    |SHT$$INIT_ARRAY$$Limit|

   131 

   132 // cheat - defining this here saves a whole 4 bytes!!! - value is never used

   133 _ZSt7nothrow

   134 

   135     }

   136 #endif

   137 

   138 }