1 1.1.1.10 mrg /* Copyright (C) 2012-2024 Free Software Foundation, Inc. 2 1.1 mrg Contributed by Jonah Graham (jgraham (at) altera.com). 3 1.1 mrg Contributed by Mentor Graphics, Inc. 4 1.1 mrg 5 1.1 mrg This file is free software; you can redistribute it and/or modify it 6 1.1 mrg under the terms of the GNU General Public License as published by the 7 1.1 mrg Free Software Foundation; either version 3, or (at your option) any 8 1.1 mrg later version. 9 1.1 mrg 10 1.1 mrg This file is distributed in the hope that it will be useful, but 11 1.1 mrg WITHOUT ANY WARRANTY; without even the implied warranty of 12 1.1 mrg MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 1.1 mrg General Public License for more details. 14 1.1 mrg 15 1.1 mrg Under Section 7 of GPL version 3, you are granted additional 16 1.1 mrg permissions described in the GCC Runtime Library Exception, version 17 1.1 mrg 3.1, as published by the Free Software Foundation. 18 1.1 mrg 19 1.1 mrg You should have received a copy of the GNU General Public License and 20 1.1 mrg a copy of the GCC Runtime Library Exception along with this program; 21 1.1 mrg see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 22 1.1 mrg <http://www.gnu.org/licenses/>. */ 23 1.1 mrg 24 1.1 mrg 25 1.1 mrg /* This file just make a stack frame for the contents of the .fini and 26 1.1 mrg .init sections. Users may put any desired instructions in those 27 1.1 mrg sections. 28 1.1 mrg 29 1.1 mrg While technically any code can be put in the init and fini sections 30 1.1 mrg most stuff will not work other than stuff which obeys the call frame 31 1.1 mrg and ABI. All the call-preserved registers are saved, the call clobbered 32 1.1 mrg registers should have been saved by the code calling init and fini. 33 1.1 mrg 34 1.1 mrg See crtstuff.c for an example of code that inserts itself in the init 35 1.1 mrg and fini sections. 36 1.1 mrg 37 1.1 mrg See crt0.s for the code that calls init and fini. */ 38 1.1 mrg 39 1.1 mrg .section ".init" 40 1.1 mrg .align 2 41 1.1 mrg .global _init 42 1.1 mrg _init: 43 1.1 mrg addi sp, sp, -48 44 1.1 mrg stw ra, 44(sp) 45 1.1 mrg stw r23, 40(sp) 46 1.1 mrg stw r22, 36(sp) 47 1.1 mrg stw r21, 32(sp) 48 1.1 mrg stw r20, 28(sp) 49 1.1 mrg stw r19, 24(sp) 50 1.1 mrg stw r18, 20(sp) 51 1.1 mrg stw r17, 16(sp) 52 1.1 mrg stw r16, 12(sp) 53 1.1 mrg stw fp, 8(sp) 54 1.1 mrg addi fp, sp, 8 55 1.1 mrg #ifdef linux 56 1.1 mrg nextpc r22 57 1.1 mrg 1: movhi r2, %hiadj(_gp_got - 1b) 58 1.1 mrg addi r2, r2, %lo(_gp_got - 1b) 59 1.1 mrg add r22, r22, r2 60 1.1 mrg #endif 61 1.1 mrg 62 1.1 mrg 63 1.1 mrg .section ".fini" 64 1.1 mrg .align 2 65 1.1 mrg .global _fini 66 1.1 mrg _fini: 67 1.1 mrg addi sp, sp, -48 68 1.1 mrg stw ra, 44(sp) 69 1.1 mrg stw r23, 40(sp) 70 1.1 mrg stw r22, 36(sp) 71 1.1 mrg stw r21, 32(sp) 72 1.1 mrg stw r20, 28(sp) 73 1.1 mrg stw r19, 24(sp) 74 1.1 mrg stw r18, 20(sp) 75 1.1 mrg stw r17, 16(sp) 76 1.1 mrg stw r16, 12(sp) 77 1.1 mrg stw fp, 8(sp) 78 1.1 mrg addi fp, sp, 8 79 1.1 mrg #ifdef linux 80 1.1 mrg nextpc r22 81 1.1 mrg 1: movhi r2, %hiadj(_gp_got - 1b) 82 1.1 mrg addi r2, r2, %lo(_gp_got - 1b) 83 1.1 mrg add r22, r22, r2 84 1.1 mrg #endif 85 1.1 mrg 86
Indexes created Thu Jul 09 00:25:44 UTC 2026