diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/arm/mmap64.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/arm/mmap64.S | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/mmap64.S b/sysdeps/unix/sysv/linux/arm/mmap64.S deleted file mode 100644 index b4b712c2f2..0000000000 --- a/sysdeps/unix/sysv/linux/arm/mmap64.S +++ /dev/null @@ -1,80 +0,0 @@ -/* Copyright (C) 2000, 2003 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> - -#define EINVAL 22 -#define ENOSYS 38 - -#include "kernel-features.h" - - /* The mmap2 system call takes six arguments, all in registers. */ - .text -ENTRY (__mmap64) -#ifdef __NR_mmap2 - ldr ip, [sp, $4] @ offset low part - str r5, [sp, #-4]! - ldr r5, [sp, $12] @ offset high part - str r4, [sp, #-4]! - movs r4, ip, lsl $20 @ check that offset is page-aligned - mov ip, ip, lsr $12 - moveqs r4, r5, lsr $12 @ check for overflow - bne .Linval - ldr r4, [sp, $8] @ load fd - orr r5, ip, r5, lsl $20 @ compose page offset - mov ip, r0 - swi SYS_ify (mmap2) - cmn r0, $4096 -# ifdef __ASSUME_MMAP2_SYSCALL - ldr r4, [sp], #4 - ldr r5, [sp], #4 - RETINSTR(cc, lr) - b PLTJMP(syscall_error) -# else - ldrcc r4, [sp], #4 - ldrcc r5, [sp], #4 - RETINSTR(cc, lr) - cmn r0, $ENOSYS - bne .Lerror - /* The current kernel does not support mmap2. Fall back to plain - mmap if the offset is small enough. */ - ldr r5, [sp, $16] - mov r0, ip @ first arg was clobbered - teq r5, $0 - ldreq r4, [sp], #4 - ldreq r5, [sp], #4 - beq PLTJMP(__mmap) -# endif -.Linval: - mov r0, $-EINVAL -.Lerror: - ldr r4, [sp], #4 - ldr r5, [sp], #4 - b PLTJMP(syscall_error) -#else - /* The kernel headers do not support mmap2. Fall back to plain - mmap if the offset is small enough. */ - ldr ip, [sp, $8] - teq ip, $0 - beq PLTJMP(__mmap) - mov r0, $-EINVAL - b PLTJMP(syscall_error) -#endif -PSEUDO_END (__mmap64) - -weak_alias (__mmap64, mmap64) |