projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 80920132 ME |
1 | ###################################-*-asm*- |
| 2 | # | |
| cbe34bb5 | 3 | # Copyright (C) 2009-2017 Free Software Foundation, Inc. |
| 80920132 ME |
4 | # |
| 5 | # | |
| 6 | # Contributed by Michael Eager <eager@eagercon.com>. | |
| 7 | # | |
| 8 | # This file is free software; you can redistribute it and/or modify it | |
| 9 | # under the terms of the GNU General Public License as published by the | |
| 10 | # Free Software Foundation; either version 3, or (at your option) any | |
| 11 | # later version. | |
| 12 | # | |
| 13 | # GCC is distributed in the hope that it will be useful, but WITHOUT | |
| 14 | # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
| 15 | # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
| 16 | # License for more details. | |
| 17 | # | |
| 18 | # Under Section 7 of GPL version 3, you are granted additional | |
| 19 | # permissions described in the GCC Runtime Library Exception, version | |
| 20 | # 3.1, as published by the Free Software Foundation. | |
| 21 | # | |
| 22 | # You should have received a copy of the GNU General Public License and | |
| 23 | # a copy of the GCC Runtime Library Exception along with this program; | |
| 24 | # see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 25 | # <http://www.gnu.org/licenses/>. | |
| 26 | # | |
| f9989b51 | 27 | # stack_overflow_exit.S |
| 80920132 ME |
28 | # |
| 29 | # Checks for stack overflows and sets the global variable | |
| 30 | # stack_overflow_error with the value of current stack pointer | |
| 31 | # | |
| 32 | # This routine exits from the program | |
| 33 | # | |
| 34 | ####################################### | |
| 35 | ||
| 938b6f1e JM |
36 | /* An executable stack is *not* required for these functions. */ |
| 37 | #ifdef __linux__ | |
| 38 | .section .note.GNU-stack,"",%progbits | |
| 39 | .previous | |
| 40 | #endif | |
| 41 | ||
| 80920132 ME |
42 | .globl _stack_overflow_error |
| 43 | .data | |
| 44 | .align 2 | |
| 45 | .type _stack_overflow_error,@object | |
| 46 | .size _stack_overflow_error,4 | |
| 47 | _stack_overflow_error: | |
| 48 | .data32 0 | |
| 49 | ||
| 50 | .text | |
| 51 | .globl _stack_overflow_exit | |
| 52 | .ent _stack_overflow_exit | |
| 53 | .type _stack_overflow_exit,@function | |
| 54 | ||
| 55 | _stack_overflow_exit: | |
| 56 | #ifdef __PIC__ | |
| 57 | mfs r20,rpc | |
| 58 | addik r20,r20,_GLOBAL_OFFSET_TABLE_+8 | |
| 59 | swi r1,r20,_stack_overflow_error@GOTOFF | |
| 60 | bri exit@PLT | |
| 61 | #else | |
| 62 | swi r1,r0,_stack_overflow_error | |
| 63 | bri exit | |
| 64 | #endif | |
| 65 | ||
| 66 | .end _stack_overflow_exit | |
| 67 | .size _stack_overflow_exit,. - _stack_overflow_exit |