| /* Copyright (C) 2012-2021 Free Software Foundation, Inc. |
| Contributed by Jonah Graham (jgraham@altera.com). |
| Contributed by Mentor Graphics, Inc. |
| |
| This file is free software; you can redistribute it and/or modify it |
| under the terms of the GNU General Public License as published by the |
| Free Software Foundation; either version 3, or (at your option) any |
| later version. |
| |
| This file is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| |
| /* This file just make a stack frame for the contents of the .fini and |
| .init sections. Users may put any desired instructions in those |
| sections. |
| |
| While technically any code can be put in the init and fini sections |
| most stuff will not work other than stuff which obeys the call frame |
| and ABI. All the call-preserved registers are saved, the call clobbered |
| registers should have been saved by the code calling init and fini. |
| |
| See crtstuff.c for an example of code that inserts itself in the init |
| and fini sections. |
| |
| See crt0.s for the code that calls init and fini. */ |
| |
| .section ".init" |
| .align 2 |
| .global _init |
| _init: |
| addi sp, sp, -48 |
| stw ra, 44(sp) |
| stw r23, 40(sp) |
| stw r22, 36(sp) |
| stw r21, 32(sp) |
| stw r20, 28(sp) |
| stw r19, 24(sp) |
| stw r18, 20(sp) |
| stw r17, 16(sp) |
| stw r16, 12(sp) |
| stw fp, 8(sp) |
| addi fp, sp, 8 |
| #ifdef linux |
| nextpc r22 |
| 1: movhi r2, %hiadj(_gp_got - 1b) |
| addi r2, r2, %lo(_gp_got - 1b) |
| add r22, r22, r2 |
| #endif |
| |
| |
| .section ".fini" |
| .align 2 |
| .global _fini |
| _fini: |
| addi sp, sp, -48 |
| stw ra, 44(sp) |
| stw r23, 40(sp) |
| stw r22, 36(sp) |
| stw r21, 32(sp) |
| stw r20, 28(sp) |
| stw r19, 24(sp) |
| stw r18, 20(sp) |
| stw r17, 16(sp) |
| stw r16, 12(sp) |
| stw fp, 8(sp) |
| addi fp, sp, 8 |
| #ifdef linux |
| nextpc r22 |
| 1: movhi r2, %hiadj(_gp_got - 1b) |
| addi r2, r2, %lo(_gp_got - 1b) |
| add r22, r22, r2 |
| #endif |
| |
