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9e5ee8b839
Hide internal __ioctl function to allow direct access within libc.so and libc.a without using GOT nor PLT. __GI___ioctl is defined when sysdeps/unix/syscalls.list is used to generate ioctl. Otherwise libc_hidden_def is needed explicitly. [BZ #18822] * include/sys/ioctl.h (__ioctl): Add libc_hidden_proto. * misc/ioctl.c (__ioctl): Add libc_hidden_def. * sysdeps/mach/hurd/ioctl.c (__ioctl): Likewise. * sysdeps/unix/sysv/linux/aarch64/ioctl.S (__ioctl): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S (__ioctl): Likewise. * sysdeps/unix/sysv/linux/powerpc/ioctl.c (__ioctl): Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/ioctl.S (__ioctl): Likewise.
43 lines
1.2 KiB
ArmAsm
43 lines
1.2 KiB
ArmAsm
/* Copyright 2003-2017 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, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#include <sys/asm.h>
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/* Sign-extend the ioctl number, since the kernel wants it as a
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sign-extended 32-bit value, but our prototype is that of a long. */
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.text
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ENTRY (__ioctl)
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sll a1, a1, 0
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li v0, __NR_ioctl
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syscall /* Do the system call. */
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bne a3, zero, L(error)
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ret
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L(error):
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SETUP_GP64_REG (a0, __ioctl)
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PTR_LA t9, __syscall_error
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RESTORE_GP64_REG
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jr t9
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PSEUDO_END (__ioctl)
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libc_hidden_def (__ioctl)
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weak_alias (__ioctl, ioctl)
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