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1 /* |
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2 * Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * toplevel initialization/destruction routines for 'user side' code compiled |
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16 * with the ARMCC EABI compiler. intended for static linking |
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17 * The code supports 2.2 both bpabi and non-bpabi. The values in .init_array are |
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18 * pointers in both environments, so the library is common to both. |
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19 * |
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20 */ |
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21 |
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22 |
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23 extern "C" { |
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24 |
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25 // This calls each of the compiler constructed functions referenced from pi_ctorvec. |
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26 // These functions arrange to 'call' the appropriate constructor for the 'static' instance |
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27 // (in fact the call may be inlined). If the class of the instance has a destructor then |
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28 // compiler records that this object needs 'destructing' at 'exit' time. It does this by |
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29 // calling the function __cxa_atexit. We provide our own definition of this. |
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30 // |
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31 |
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32 #ifdef __thumb |
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33 __asm void __cpp_initialize__aeabi_(void) |
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34 { |
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35 CODE16 |
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36 #ifndef _NO_FP |
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37 IMPORT _fp_init [WEAK] |
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38 #endif |
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39 IMPORT |SHT$$INIT_ARRAY$$Base| [WEAK] |
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40 IMPORT |SHT$$INIT_ARRAY$$Limit| [WEAK] |
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41 |
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42 // export std::nothrow from here |
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43 EXPORT _ZSt7nothrow |
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44 |
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45 #ifndef _NO_FP |
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46 LDR r0,fpinit |
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47 #endif |
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48 PUSH {r4-r6,r14} |
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49 #ifndef _NO_FP |
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50 CMP r0,#0 |
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51 BEQ skip |
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52 BL _fp_init ; |
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53 skip |
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54 #endif |
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55 LDR r4,base |
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56 LDR r5,limit |
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57 B check |
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58 loop |
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59 LDR r0,[r4,#0] |
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60 |
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61 BLX r0 |
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62 ADD r4,#4 |
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63 check |
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64 CMP r4,r5 |
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65 BCC loop |
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66 POP {r4-r6,pc} |
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67 |
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68 #ifndef _NO_FP |
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69 ALIGN 4 |
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70 fpinit |
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71 DCD _fp_init |
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72 #endif |
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73 |
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74 // cheat - saved a whole 4 bytes!!! - value is never used |
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75 _ZSt7nothrow |
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76 base |
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77 DCD |SHT$$INIT_ARRAY$$Base| |
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78 limit |
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79 DCD |SHT$$INIT_ARRAY$$Limit| |
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80 |
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81 } |
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82 |
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83 #else |
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84 __asm void __cpp_initialize__aeabi_(void) |
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85 { |
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86 CODE32 |
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87 #ifndef _NO_FP |
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88 IMPORT _fp_init [WEAK] |
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89 #endif |
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90 IMPORT |SHT$$INIT_ARRAY$$Base| [WEAK] |
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91 IMPORT |SHT$$INIT_ARRAY$$Limit| [WEAK] |
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92 |
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93 // export std::nothrow from here |
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94 EXPORT _ZSt7nothrow |
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95 |
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96 #ifndef _NO_FP |
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97 LDR r0, fpinit |
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98 #endif |
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99 STMFD r13!,{r3-r5,r14} |
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100 #ifndef _NO_FP |
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101 CMP r0, #0 |
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102 BEQ skip |
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103 BL _fp_init |
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104 skip |
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105 #endif |
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106 LDR r4,base |
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107 LDR r5,limit |
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108 CMP r4,r5 |
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109 LDMEQFD r13!,{r3-r5,pc} |
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110 loop |
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111 LDR r0,[r4,#0] |
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112 #ifdef __MARM_ARMV4__ |
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113 ADR r14,ret |
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114 MOV pc,r0 |
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115 #else |
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116 BLX r0 |
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117 #endif |
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118 ret |
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119 ADD r4,r4,#4 |
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120 CMP r4,r5 |
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121 BNE loop |
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122 LDMFD r13!,{r3-r5,pc} |
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123 |
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124 #ifndef _NO_FP |
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125 fpinit |
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126 DCD _fp_init |
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127 #endif |
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128 |
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129 base |
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130 DCD |SHT$$INIT_ARRAY$$Base| |
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131 limit |
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132 DCD |SHT$$INIT_ARRAY$$Limit| |
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133 |
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134 // cheat - defining this here saves a whole 4 bytes!!! - value is never used |
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135 _ZSt7nothrow |
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136 |
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137 } |
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138 #endif |
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139 |
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140 } |