From 81b83ff61f95f30ad53d6075247af0ea61a0b16e Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Tue, 21 Jul 2020 15:53:53 -0300 Subject: linux: Move xmknod{at} to compat symbols It also decouple mknod{at} from xmknod{at}. The riscv32 ABI was added on 2.33, so it is safe to remove the old __xmknot{at} symbols and just provide the newer mknod{at} ones. Checked with a build for all affected ABIs. I also checked on x86_64, i686, powerpc, powerpc64le, sparcv9, sparc64, s390, and s390x. Reviewed-by: Lukasz Majewski --- sysdeps/unix/sysv/linux/mknodat.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/mknodat.c (limited to 'sysdeps/unix/sysv/linux/mknodat.c') diff --git a/sysdeps/unix/sysv/linux/mknodat.c b/sysdeps/unix/sysv/linux/mknodat.c new file mode 100644 index 0000000000..fdb8f1951a --- /dev/null +++ b/sysdeps/unix/sysv/linux/mknodat.c @@ -0,0 +1,35 @@ +/* Create a special or ordinary file. Linux version. + Copyright (C) 2020 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 + . */ + +#include +#include +#include + +int +__mknodat (int fd, const char *path, mode_t mode, dev_t dev) +{ + /* The user-exported dev_t is 64-bit while the kernel interface is + 32-bit. */ + unsigned int k_dev = dev; + if (k_dev != dev) + return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL); + + return INLINE_SYSCALL_CALL (mknodat, fd, path, mode, k_dev); +} +libc_hidden_def (__mknodat) +weak_alias (__mknodat, mknodat) -- cgit 1.4.1