diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/arm/____longjmp_chk.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/arm/____longjmp_chk.S | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/____longjmp_chk.S b/sysdeps/unix/sysv/linux/arm/____longjmp_chk.S deleted file mode 100644 index 6d8d93ae5f..0000000000 --- a/sysdeps/unix/sysv/linux/arm/____longjmp_chk.S +++ /dev/null @@ -1,90 +0,0 @@ -/* Copyright (C) 2009-2017 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. - - 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/>. */ - -#include <sysdep.h> - - .section .rodata.str1.1,"aMS",%progbits,1 - .type longjmp_msg,%object -longjmp_msg: - .string "longjmp causes uninitialized stack frame" - .size longjmp_msg, .-longjmp_msg - .text - -#define __longjmp ____longjmp_chk - -#ifdef PIC -# define CALL_FAIL \ - ldr sl, .L_GOT; \ - cfi_undefined (sl); \ -.L_GOT_OFF: \ - add sl, pc, sl; \ - ldr r0, .Lstr; \ - add r0, sl, r0; \ - B PLTJMP(HIDDEN_JUMPTARGET(__fortify_fail)); \ -.L_GOT: \ - .word _GLOBAL_OFFSET_TABLE_-(.L_GOT_OFF+8); \ -.Lstr: \ - .word longjmp_msg(GOTOFF); -#else -# define CALL_FAIL \ - ldr r0, .Lstr; \ - B HIDDEN_JUMPTARGET(__fortify_fail); \ -.Lstr: \ - .word longjmp_msg; -#endif - -#define CHECK_SP(reg) \ - cfi_remember_state; \ - cmp sp, reg; \ - bls .Lok; \ - push { r7 }; \ - cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (r7, 0); \ - mov r5, r0; \ - cfi_undefined (r5); \ - mov r7, #SYS_ify(sigaltstack); \ - mov r0, #0; \ - sub sp, sp, #12; /* == sizeof (stack_t) */ \ - cfi_adjust_cfa_offset (12); \ - cfi_remember_state; \ - mov r1, sp; \ - swi #0; \ - cmp r0, #0; \ - bne .Lok2; \ - ldr r1, [sp, #4]; \ - tst r1, #1; \ - beq .Lfail; \ - ldr r2, [sp, #0]; \ - ldr r3, [sp, #8]; \ - add r2, r2, r3; \ - sub r2, r2, reg; \ - cmp r2, r3; \ - bhi .Lok2; \ -.Lfail: \ - add sp, sp, #12; \ - cfi_adjust_cfa_offset (-12); \ - pop { r7 }; \ - cfi_adjust_cfa_offset (-4); \ - cfi_restore (r7); \ - CALL_FAIL \ - cfi_restore_state; \ -.Lok2: \ - mov r0, r5; \ - cfi_restore_state; \ -.Lok: - -#include <__longjmp.S> |