| /* Special .init and .fini section support for PowerPC. |
| Copyright (C) 2012-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| In addition to the permissions in the GNU Lesser General Public |
| License, the Free Software Foundation gives you unlimited |
| permission to link the compiled version of this file with other |
| programs, and to distribute those programs without any restriction |
| coming from the use of this file. (The GNU Lesser General Public |
| License restrictions do apply in other respects; for example, they |
| cover modification of the file, and distribution when not linked |
| into another program.) |
| |
| Note that people who make modified versions of this file are not |
| obligated to grant this special exception for their modified |
| versions; it is their choice whether to do so. The GNU Lesser |
| General Public License gives permission to release a modified |
| version without this exception; this exception also makes it |
| possible to release a modified version which carries forward this |
| exception. |
| |
| The GNU C Library 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| /* crti.S puts a function prologue at the beginning of the .init and |
| .fini sections and defines global symbols for those addresses, so |
| they can be called as functions. The symbols _init and _fini are |
| magic and cause the linker to emit DT_INIT and DT_FINI. */ |
| |
| #include <libc-symbols.h> |
| #include <sysdep.h> |
| |
| #ifndef PREINIT_FUNCTION |
| # define PREINIT_FUNCTION __gmon_start__ |
| #endif |
| |
| #ifndef PREINIT_FUNCTION_WEAK |
| # define PREINIT_FUNCTION_WEAK 1 |
| #endif |
| |
| #if PREINIT_FUNCTION_WEAK |
| weak_extern (PREINIT_FUNCTION) |
| #else |
| .hidden PREINIT_FUNCTION |
| #endif |
| |
| .section .init,"ax",@progbits |
| .align 2 |
| .globl _init |
| .type _init, @function |
| _init: |
| stwu r1, -16(r1) |
| mflr r0 |
| stw r0, 20(r1) |
| stw r30, 8(r1) |
| SETUP_GOT_ACCESS (r30, .Lgot_label_i) |
| addis r30, r30, _GLOBAL_OFFSET_TABLE_-.Lgot_label_i@ha |
| addi r30, r30, _GLOBAL_OFFSET_TABLE_-.Lgot_label_i@l |
| #if PREINIT_FUNCTION_WEAK |
| lwz r0, PREINIT_FUNCTION@got(r30) |
| cmpwi cr7, r0, 0 |
| beq+ cr7, 1f |
| bl PREINIT_FUNCTION@plt |
| 1: |
| #else |
| bl PREINIT_FUNCTION@local |
| #endif |
| |
| .section .fini,"ax",@progbits |
| .align 2 |
| .globl _fini |
| .type _fini, @function |
| _fini: |
| stwu r1, -16(r1) |
| mflr r0 |
| stw r0, 20(r1) |
| stw r30, 8(r1) |
| SETUP_GOT_ACCESS (r30, .Lgot_label_f) |
