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https://sourceware.org/git/glibc.git
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de96d1483f
* sysdeps/unix/sysv/linux/arm/brk.c (__brk): Use INLINE_SYSCALL. * sysdeps/unix/sysv/linux/arm/clone.S (__clone): Use DO_CALL. * sysdeps/unix/sysv/linux/arm/eabi/configure.in: Bump arch_minimum_kernel. * sysdeps/unix/sysv/linux/arm/eabi/configure: Regenerated. * sysdeps/unix/sysv/linux/arm/eabi/epoll_ctl.c, sysdeps/unix/sysv/linux/arm/eabi/epoll_wait.c, sysdeps/unix/sysv/linux/arm/eabi/fcntl.c, sysdeps/unix/sysv/linux/arm/eabi/fstatfs64.c, sysdeps/unix/sysv/linux/arm/eabi/ftruncate64.c, sysdeps/unix/sysv/linux/arm/eabi/fxstat64.c, sysdeps/unix/sysv/linux/arm/eabi/kernel_epoll.h, sysdeps/unix/sysv/linux/arm/eabi/kernel_stat.h, sysdeps/unix/sysv/linux/arm/eabi/lockf64.c, sysdeps/unix/sysv/linux/arm/eabi/lxstat64.c, sysdeps/unix/sysv/linux/arm/eabi/semop.c, sysdeps/unix/sysv/linux/arm/eabi/semtimedop.c, sysdeps/unix/sysv/linux/arm/eabi/statfs64.c, sysdeps/unix/sysv/linux/arm/eabi/syscalls.list, sysdeps/unix/sysv/linux/arm/eabi/uname.c, sysdeps/unix/sysv/linux/arm/eabi/xstat64.c, sysdeps/unix/sysv/linux/arm/eabi/xstatconv.c, sysdeps/unix/sysv/linux/arm/eabi/xstatconv.h: Removed. * sysdeps/unix/sysv/linux/arm/eabi/linuxthreads/sysdep-cancel.h, sysdeps/unix/sysv/linux/arm/eabi/mmap64.S, sysdeps/unix/sysv/linux/arm/eabi/pread.c, sysdeps/unix/sysv/linux/arm/eabi/pread64.c, sysdeps/unix/sysv/linux/arm/eabi/pwrite.c, sysdeps/unix/sysv/linux/arm/eabi/pwrite64.c, sysdeps/unix/sysv/linux/arm/eabi/readahead.c, sysdeps/unix/sysv/linux/arm/eabi/sigrestorer.S, sysdeps/unix/sysv/linux/arm/eabi/socket.S, sysdeps/unix/sysv/linux/arm/eabi/syscall.S, sysdeps/unix/sysv/linux/arm/eabi/sysdep.h, sysdeps/unix/sysv/linux/arm/eabi/truncate64.c: New files. * sysdeps/unix/sysv/linux/arm/linuxthreads/sysdep-cancel.h (SINGLE_THREAD_P_INT, SINGLE_THREAD_P_PIC): Removed. (SINGLE_THREAD_P): Rewritten to use only ip. * sysdeps/unix/sysv/linux/arm/linuxthreads/vfork.S (__vfork): Use DO_CALL. * sysdeps/unix/sysv/linux/arm/mmap.S (__mmap): Use DO_CALL. * sysdeps/unix/sysv/linux/arm/mmap64.S (__mmap64): Use DO_CALL. Don't handle EABI here. * sysdeps/unix/sysv/linux/arm/socket.S (__socket): Use SINGLE_THREAD_P. * sysdeps/unix/sysv/linux/arm/vfork.S (__vfork): Use DO_CALL.
57 lines
1.7 KiB
ArmAsm
57 lines
1.7 KiB
ArmAsm
/* Copyright (C) 2000, 2003, 2005 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#define EINVAL 22
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#ifdef __ARMEB__
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# define LOW_OFFSET 8 + 4
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/* The initial + 4 is for the stack postdecrement. */
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# define HIGH_OFFSET 4 + 8 + 0
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#else
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# define LOW_OFFSET 8 + 0
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# define HIGH_OFFSET 4 + 8 + 4
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#endif
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/* The mmap2 system call takes six arguments, all in registers. */
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.text
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ENTRY (__mmap64)
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ldr ip, [sp, $LOW_OFFSET]
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str r5, [sp, #-4]!
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ldr r5, [sp, $HIGH_OFFSET]
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str r4, [sp, #-4]!
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movs r4, ip, lsl $20 @ check that offset is page-aligned
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mov ip, ip, lsr $12
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moveqs r4, r5, lsr $12 @ check for overflow
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bne .Linval
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ldr r4, [sp, $8] @ load fd
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orr r5, ip, r5, lsl $20 @ compose page offset
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DO_CALL (mmap2, 0)
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cmn r0, $4096
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ldmfd sp!, {r4, r5}
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RETINSTR(cc, lr)
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b PLTJMP(syscall_error)
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.Linval:
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mov r0, $-EINVAL
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ldmfd sp!, {r4, r5}
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b PLTJMP(syscall_error)
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PSEUDO_END (__mmap64)
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weak_alias (__mmap64, mmap64)
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