1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 .text 29 .align 4 30 .type __start,@function 31 .globl __start 32 .globl _start 33 34 # this is the small startup code that is first run when 35 # any executable that is statically-linked with Bionic 36 # runs. 37 # 38 # it's purpose is to call __libc_init with appropriate 39 # arguments, which are: 40 # 41 # - the address of the raw data block setup by the Linux 42 # kernel ELF loader 43 # 44 # - address of an "onexit" function, not used on any 45 # platform supported by Bionic 46 # 47 # - address of the "main" function of the program. 48 # 49 # - address of the constructor list 50 # 51 52 .ent __start 53 __start: 54 _start: 55 bal 1f 56 1: 57 .set noreorder 58 .cpload $ra 59 .set reorder 60 61 move $a0, $sp 62 move $a1, $0 63 la $a2, main 64 la $a3, 1f 65 subu $sp, 32 66 la $t9, __libc_init 67 j $t9 68 .end __start 69 70 1: .long __PREINIT_ARRAY__ 71 .long __INIT_ARRAY__ 72 .long __FINI_ARRAY__ 73 .long __CTOR_LIST__ 74 .long __DTOR_LIST__ 75 76 .section .preinit_array, "aw" 77 .type __PREINIT_ARRAY__, @object 78 .globl __PREINIT_ARRAY__ 79 __PREINIT_ARRAY__: 80 .long -1 81 82 .section .init_array, "aw" 83 .type __INIT_ARRAY__, @object 84 .globl __INIT_ARRAY__ 85 __INIT_ARRAY__: 86 .long -1 87 .long frame_dummy 88 89 .section .fini_array, "aw" 90 .type __FINI_ARRAY__, @object 91 .globl __FINI_ARRAY__ 92 __FINI_ARRAY__: 93 .long -1 94 .long __do_global_dtors_aux 95 96 .section .ctors, "aw" 97 .type __CTOR_LIST__, @object 98 .globl __CTOR_LIST__ 99 __CTOR_LIST__: 100 .long -1 101 102 .section .dtors, "aw" 103 .type __DTOR_LIST__, @object 104 .globl __DTOR_LIST__ 105 __DTOR_LIST__: 106 .long -1 107 108 .abicalls 109 .section .eh_frame,"a",@progbits 110 .align 2 111 .type __EH_FRAME_BEGIN__, @object 112 .size __EH_FRAME_BEGIN__, 0 113 __EH_FRAME_BEGIN__: 114 .text 115 .align 2 116 .set nomips16 117 .ent frame_dummy 118 .type frame_dummy, @function 119 frame_dummy: 120 .frame $sp,32,$31 # vars= 0, regs= 1/0, args= 16, gp= 8 121 .mask 0x80000000,-4 122 .fmask 0x00000000,0 123 .set noreorder 124 .cpload $25 125 .set nomacro 126 addiu $sp,$sp,-32 127 sw $31,28($sp) 128 .cprestore 16 129 lw $2,%got(__register_frame_info)($28) 130 beq $2,$0,$L1 131 nop 132 133 lw $2,%got(__EH_FRAME_BEGIN__)($28) 134 addiu $4,$2,%lo(__EH_FRAME_BEGIN__) 135 lw $2,%got(object.1265)($28) 136 addiu $5,$2,%lo(object.1265) 137 lw $2,%call16(__register_frame_info)($28) 138 move $25,$2 139 .reloc 1f,R_MIPS_JALR,__register_frame_info 140 1: jalr $25 141 nop 142 143 lw $28,16($sp) 144 $L1: 145 lw $31,28($sp) 146 addiu $sp,$sp,32 147 j $31 148 nop 149 150 .text 151 .set macro 152 .set reorder 153 .end frame_dummy 154 .size frame_dummy, .-frame_dummy 155 .align 2 156 .set nomips16 157 .ent __do_global_dtors_aux 158 .type __do_global_dtors_aux, @function 159 __do_global_dtors_aux: 160 .frame $sp,32,$31 # vars= 0, regs= 1/0, args= 16, gp= 8 161 .mask 0x80000000,-4 162 .fmask 0x00000000,0 163 .set noreorder 164 .cpload $25 165 .set nomacro 166 addiu $sp,$sp,-32 167 sw $31,28($sp) 168 .cprestore 16 169 lw $2,%got(completed.1269)($28) 170 lbu $2,%lo(completed.1269)($2) 171 bne $2,$0,$L8 172 nop 173 174 $L4: 175 lw $2,%got(__cxa_finalize)($28) 176 beq $2,$0,$L6 177 nop 178 179 lw $2,%got(__dso_handle)($28) 180 lw $2,0($2) 181 move $4,$2 182 lw $2,%call16(__cxa_finalize)($28) 183 move $25,$2 184 .reloc 1f,R_MIPS_JALR,__cxa_finalize 185 1: jalr $25 186 nop 187 188 lw $28,16($sp) 189 $L6: 190 lw $2,%got(__deregister_frame_info)($28) 191 beq $2,$0,$L7 192 nop 193 194 lw $2,%got(__EH_FRAME_BEGIN__)($28) 195 addiu $4,$2,%lo(__EH_FRAME_BEGIN__) 196 lw $2,%call16(__deregister_frame_info)($28) 197 move $25,$2 198 .reloc 1f,R_MIPS_JALR,__deregister_frame_info 199 1: jalr $25 200 nop 201 202 lw $28,16($sp) 203 $L7: 204 lw $2,%got(completed.1269)($28) 205 li $3,1 # 0x1 206 sb $3,%lo(completed.1269)($2) 207 b $L3 208 nop 209 210 $L8: 211 nop 212 $L3: 213 lw $31,28($sp) 214 addiu $sp,$sp,32 215 j $31 216 nop 217 218 .set macro 219 .set reorder 220 .end __do_global_dtors_aux 221 .size __do_global_dtors_aux, .-__do_global_dtors_aux 222 .local completed.1269 223 .comm completed.1269,1,1 224 .local object.1265 225 .comm object.1265,24,4 226 .weak __deregister_frame_info 227 .weak __cxa_finalize 228 .weak __register_frame_info 229 230 .include "__dso_handle.S" 231 .include "atexit.S" 232
