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1 # crti.asm for Sunplus S+CORE
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2 #
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3 # Copyright (C) 2005, 2009 Free Software Foundation, Inc.
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4 #
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5 # This file is free software; you can redistribute it and/or modify it
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6 # under the terms of the GNU General Public License as published by the
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7 # Free Software Foundation; either version 3, or (at your option) any
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8 # later version.
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9 #
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10 # This file is distributed in the hope that it will be useful, but
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11 # WITHOUT ANY WARRANTY; without even the implied warranty of
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12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 # General Public License for more details.
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14 #
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15 # Under Section 7 of GPL version 3, you are granted additional
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16 # permissions described in the GCC Runtime Library Exception, version
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17 # 3.1, as published by the Free Software Foundation.
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18 #
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19 # You should have received a copy of the GNU General Public License and
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20 # a copy of the GCC Runtime Library Exception along with this program;
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21 # see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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22 # <http://www.gnu.org/licenses/>.
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23
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24 # This file makes a stack frame for the contents of the .init and
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25 # .fini sections.
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26 .extern _stack
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27
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28 #ifndef __pic__
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29 .section .init, "ax", @progbits
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30 .weak _start
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31 .ent _start
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32 .frame r0, 0, r3, 0
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33 .mask 0x00000000, 0
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34 _start:
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35 la r28, _gp
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36 la r8, __bss_start
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37 la r9, __bss_end__
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38 sub! r9, r8
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39 srli! r9, 2
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40 addi r9, -1
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41 mtsr r9, sr0
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42 li r9, 0
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43 1:
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44 sw r9, [r8]+, 4
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45 bcnz 1b
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46 la r0, _stack
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47 jl _init
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48 la r4, _end
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49 jl _init_argv
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50 jl exit
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51 .end _start
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52
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53 .weak _init_argv
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54 .ent
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55 .frame r0, 0, r3, 0
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56 .mask 0x00000000, 0
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57 _init_argv:
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58 ldiu! r4, 0
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59 ldiu! r5, 0
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60 j main
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61 .end _init_argv
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62
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63 .globl _init
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64 .type _init, %function
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65 _init:
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66 addi r0, -32
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67 sw r3, [r0, 20]
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68
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69 .section .fini, "ax", @progbits
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70 .globl _fini
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71 .type _fini, %function
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72 _fini:
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73 addi r0, -32
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74 sw r3, [r0, 20]
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75 #else
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76 .section .init, "ax", @progbits
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77 .set pic
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78 .weak _start
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79 .ent _start
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80 .frame r0, 0, r3, 0
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81 .mask 0x00000000, 0
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82 _start:
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83 mv r29, r3
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84 bl 0f
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85 0:
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86 .cpload r3
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87 mv r3, r29
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88 la r8, __bss_start
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89 la r9, __bss_end__
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90 sub! r9, r8
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91 srli! r9, 2
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92 addi r9, -1
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93 mtsr r9, sr0
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94 li r9, 0
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95 1:
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96 sw r9, [r8]+, 4
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97 bcnz 1b
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98 la r0, _stack
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99 bl _init
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100 la r4, _end
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101 la r29, _init_argv
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102 brl r29
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103 la r29, exit
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104 brl r29
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105 .end _start
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106
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107 .weak _init_argv
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108 .ent _init_argv
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109 .frame r0, 0, r3, 0
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110 .mask 0x00000000, 0
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111 _init_argv:
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112 ldiu! r4, 0
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113 ldiu! r5, 0
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114 la r29, main
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115 brl r29
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116 .end _init_argv
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117
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118 .globl _init
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119 .type _init, %function
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120 _init:
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121 addi r0, -32
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122 sw r3, [r0, 20]
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123
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124 .section .fini, "ax", @progbits
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125 .globl _fini
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126 .type _fini, %function
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127 _fini:
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128 addi r0, -32
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129 sw r3, [r0, 20]
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130
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131 #endif
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