lib: General Linux RISC-V64 syscall support.
* include/linux/riscv32/kernel-stat.h, include/linux/riscv64/kernel-stat.h: New files. * include/fcntl.h (AT_FDCWD, AT_SYMLINK_NOFOLLOW, AT_REMOVEDIR): Add necessary constants. * include/stdint.h: Integer size defines for RISC-V. * include/sys/stat.h: "stat" struct for RISC-V. * lib/linux/_open3.c (_open3)[!SYS_open]: Use SYS_openat. * lib/linux/access.c (access)[!SYS_access]: Use SYS_faccessat. * lib/linux/chmod.c (chmod)[!SYS_chmod]: Use SYS_fchmodat. * lib/linux/dup2.c (dup2)[!SYS_dup2]: Use if SYS_dup3. * lib/linux/fork.c (fork)[!SYS_fork]: Use SYS_clone. * lib/linux/getdents.c (getdents)[!SYS_getdents]: Use SYS_getdents64. * lib/linux/link.c (link)[!SYS_link]: Use SYS_linkat. * lib/linux/lstat.c (lstat)[!SYS_lstat]: Use SYS_newfstatat. * lib/linux/mkdir.c (mkdir)[!SYS_mkdir]: Use SYS_mkdirat. * lib/linux/mknod.c (mknod)[!SYS_mknod]: Use SYS_mknodat. * lib/linux/pipe.c (pipe)[!SYS_pipe]: Use SYS_pipe2. * lib/linux/readlink.c (readlink)[!SYS_readlinkat]: Use SYS_readlinkat. * lib/linux/rename.c (rename)[!SYS_rename]: Use SYS_renameat2. * lib/linux/rmdir.c (rmdir)[!SYS_rmdir]: Use SYS_unlinkat. * lib/linux/signal.c (_restorer_for_siginfo): Remove unused function that causes compilation issue. * lib/linux/stat.c (stat)[!SYS_stat]: Use SYS_newfstatat. * lib/linux/symlink.c (symlink)[!SYS_symlinkat]: Use SYS_symlink. * lib/linux/unlink.c (unlink)[!SYS_unlink]: Use SYS_unlinkat.
This commit is contained in:
W. J. van der Laan
Janneke Nieuwenhuizen
parent
9ce2b56743
commit
f24b1e467c
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@ -1,6 +1,7 @@
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/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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||||
* Copyright © 2017 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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||||
* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
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* Copyright © 2023 Emily Trau <emily@downunderctf.com>
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*
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* This file is part of GNU Mes.
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@ -48,6 +49,10 @@
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#define O_TMPFILE 0x410000
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#endif
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#define AT_FDCWD -100
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#define AT_SYMLINK_NOFOLLOW 0x100
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#define AT_REMOVEDIR 0x200
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#elif __GNU__
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#define O_RDONLY 1
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#define O_WRONLY 2
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@ -0,0 +1,46 @@
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/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
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||||
*
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* This file is part of GNU Mes.
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*
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* GNU Mes is free software; you can redistribute it and/or modify it
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||||
* under the terms of the GNU General Public License as published by
|
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* the Free Software Foundation; either version 3 of the License, or (at
|
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* your option) any later version.
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*
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||||
* GNU Mes 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 General Public License for more details.
|
||||
*
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||||
* You should have received a copy of the GNU General Public License
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* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __MES_LINUX_RISCV32_KERNEL_STAT_H
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#define __MES_LINUX_RISCV32_KERNEL_STAT_H 1
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// *INDENT-OFF*
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struct stat
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{
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unsigned long st_dev;
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unsigned long st_ino;
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unsigned short st_mode;
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unsigned short st_nlink;
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unsigned short st_uid;
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unsigned short st_gid;
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unsigned long st_rdev;
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long st_size; /* Linux: unsigned long; glibc: off_t (i.e. signed) */
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unsigned long st_blksize;
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unsigned long st_blocks;
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time_t st_atime; /* Linux: unsigned long; glibc: time_t */
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unsigned long st_atime_usec;
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time_t st_mtime; /* Linux: unsigned long; glibc: time_t */
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unsigned long st_mtime_usec;
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time_t st_ctime; /* Linux: unsigned long; glibc: time_t */
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unsigned long st_ctime_usec;
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unsigned long __foo0;
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unsigned long __foo1;
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};
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#endif // __MES_LINUX_RISCV32_KERNEL_STAT_H
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@ -0,0 +1,46 @@
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/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
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*
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* This file is part of GNU Mes.
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*
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* GNU Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
|
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* the Free Software Foundation; either version 3 of the License, or (at
|
||||
* your option) any later version.
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||||
*
|
||||
* GNU Mes 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 General Public License for more details.
|
||||
*
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||||
* You should have received a copy of the GNU General Public License
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* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __MES_LINUX_RISCV64_KERNEL_STAT_H
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#define __MES_LINUX_RISCV64_KERNEL_STAT_H 1
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// *INDENT-OFF*
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struct stat
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{
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unsigned long st_dev;
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unsigned long st_ino;
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unsigned int st_mode;
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unsigned int st_nlink;
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unsigned int st_uid;
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unsigned int st_gid;
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unsigned long st_rdev;
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long st_size;
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unsigned long st_blksize;
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unsigned long st_blocks;
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time_t st_atime;
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unsigned long st_atime_usec;
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time_t st_mtime;
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unsigned long st_mtime_usec;
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time_t st_ctime;
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unsigned long st_ctime_usec;
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unsigned long __foo0;
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unsigned long __foo1;
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};
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#endif // __MES_LINUX_RISCV64_KERNEL_STAT_H
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@ -87,7 +87,7 @@ typedef unsigned uintmax_t;
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#define INT_MIN -2147483648
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#define INT_MAX 2147483647
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#if __i386__ || __arm__
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#if __i386__ || __arm__ || __riscv_xlen == 32
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#define LONG_MIN INT_MIN
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#define LONG_MAX INT_MAX
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#define UINT_MAX UINT32_MAX
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@ -95,7 +95,7 @@ typedef unsigned uintmax_t;
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#define LLONG_MIN INT64_MIN
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#define LLONG_MAX INT64_MAX
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#define SIZE_MAX UINT32_MAX
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#elif __x86_64__
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#elif __x86_64__ || __riscv_xlen == 64
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#define LONG_MIN INT64_MIN
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#define LONG_MAX INT64_MAX
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#define UINT_MAX UINT32_MAX
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@ -1,6 +1,7 @@
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/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2016,2017,2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
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*
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* This file is part of GNU Mes.
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*
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@ -27,7 +28,13 @@ int
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_open3 (char const *file_name, int flags, int mask)
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{
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long long_file_name = cast_charp_to_long (file_name);
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#if defined (SYS_open)
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int r = _sys_call3 (SYS_open, long_file_name, flags, mask);
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#elif defined (SYS_openat)
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int r = _sys_call4 (SYS_openat, AT_FDCWD, long_file_name, flags, mask);
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#else
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#error No usable open syscall
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#endif
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__ungetc_init ();
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if (r > 2)
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{
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@ -1,6 +1,7 @@
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/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2016,2017,2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
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*
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* This file is part of GNU Mes.
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*
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@ -21,11 +22,18 @@
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#include <mes/lib.h>
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#include <linux/syscall.h>
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#include <arch/syscall.h>
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#include <fcntl.h>
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int
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access (char const *file_name, int how)
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{
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long long_file_name = cast_charp_to_long (file_name);
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long long_how = cast_int_to_long (how);
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#if defined (SYS_access)
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return _sys_call2 (SYS_access, long_file_name, long_how);
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#elif defined (SYS_faccessat)
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return _sys_call3 (SYS_faccessat, AT_FDCWD, long_file_name, long_how);
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#else
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#error No usable access sysall
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#endif
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}
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@ -1,6 +1,7 @@
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/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2016,2017,2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
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*
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* This file is part of GNU Mes.
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*
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@ -22,11 +23,18 @@
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#include <linux/syscall.h>
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#include <arch/syscall.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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int
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chmod (char const *file_name, mode_t mask)
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{
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long long_file_name = cast_charp_to_long (file_name);
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long long_mask = cast_int_to_long (mask);
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#if defined (SYS_chmod)
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return _sys_call2 (SYS_chmod, long_file_name, long_mask);
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#elif defined (SYS_fchmodat)
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return _sys_call3 (SYS_fchmodat, AT_FDCWD, long_file_name, long_mask);
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#else
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#error No usable chmod syscall
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#endif
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}
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@ -1,6 +1,7 @@
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/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2016,2017,2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
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*
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* This file is part of GNU Mes.
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*
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@ -26,5 +27,11 @@ dup2 (int old, int new)
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{
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long long_old = old;
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long long_new = new;
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#if defined (SYS_dup2)
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return _sys_call2 (SYS_dup2, long_old, long_new);
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#elif defined (SYS_dup3)
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return _sys_call3 (SYS_dup3, long_old, long_new, 0);
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#else
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#error No usable dup2 syscall
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#endif
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}
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@ -1,6 +1,7 @@
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/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2016,2017,2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
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*
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* This file is part of GNU Mes.
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*
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@ -20,9 +21,17 @@
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#include <linux/syscall.h>
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#include <arch/syscall.h>
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#include <signal.h>
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#include <unistd.h>
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int
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fork ()
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{
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#if defined (SYS_fork)
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return _sys_call (SYS_fork);
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#elif defined (SYS_clone)
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return _sys_call4 (SYS_clone, SIGCHLD, 0, NULL, 0);
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#else
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#error No usable clone syscall found
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#endif
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}
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@ -1,6 +1,7 @@
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/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
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*
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* This file is part of GNU Mes.
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*
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@ -25,5 +26,11 @@
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int
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getdents (int filedes, char *buffer, size_t nbytes)
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{
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#if defined (SYS_getdents)
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return _sys_call3 (SYS_getdents, (int) filedes, (long) buffer, (long) nbytes);
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#elif defined (SYS_getdents64)
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return _sys_call3 (SYS_getdents64, (int) filedes, (long) buffer, (long) nbytes);
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#else
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#error No usable getdents syscall
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#endif
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}
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@ -1,6 +1,7 @@
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/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
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* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
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*
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* This file is part of GNU Mes.
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*
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@ -20,9 +21,16 @@
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#include <linux/syscall.h>
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#include <arch/syscall.h>
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#include <fcntl.h>
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int
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link (char const *old_name, char const *new_name)
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{
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#if defined (SYS_link)
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return _sys_call2 (SYS_link, (long) old_name, (long) new_name);
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#elif defined (SYS_linkat)
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return _sys_call4 (SYS_linkat, AT_FDCWD, (long) old_name, AT_FDCWD, (long) new_name);
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#else
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#error No usable link syscall
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#endif
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}
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@ -1,6 +1,7 @@
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/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
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* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
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*
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* This file is part of GNU Mes.
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*
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@ -20,10 +21,18 @@
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#include <linux/syscall.h>
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#include <arch/syscall.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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int
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lstat (char const *file_name, struct stat *statbuf)
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{
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#if defined (SYS_lstat)
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return _sys_call2 (SYS_lstat, (long) file_name, (long) statbuf);
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#elif defined (SYS_newfstatat)
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return _sys_call4 (SYS_newfstatat, AT_FDCWD, (long) file_name, (long) statbuf, 0);
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#else
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#error No usable stat syscall
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#endif
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return 0;
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}
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@ -1,6 +1,7 @@
|
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/* -*-comment-start: "//";comment-end:""-*-
|
||||
* GNU Mes --- Maxwell Equations of Software
|
||||
* Copyright © 2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
||||
* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
|
||||
*
|
||||
* This file is part of GNU Mes.
|
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*
|
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|
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@ -20,10 +21,17 @@
|
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|
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#include <linux/syscall.h>
|
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#include <arch/syscall.h>
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#include <fcntl.h>
|
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#include <sys/stat.h>
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|
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int
|
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mkdir (char const *file_name, mode_t mode)
|
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{
|
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#if defined (SYS_mkdir)
|
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return _sys_call2 (SYS_mkdir, (long) file_name, (long) mode);
|
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#elif defined (SYS_mkdirat)
|
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return _sys_call3 (SYS_mkdirat, AT_FDCWD, (long) file_name, (long) mode);
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#else
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#error No usable mkdir syscall
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#endif
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}
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|
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|
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@ -1,6 +1,7 @@
|
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/* -*-comment-start: "//";comment-end:""-*-
|
||||
* GNU Mes --- Maxwell Equations of Software
|
||||
* Copyright © 2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
||||
* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
|
||||
*
|
||||
* This file is part of GNU Mes.
|
||||
*
|
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@ -21,9 +22,16 @@
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#include <linux/syscall.h>
|
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#include <arch/syscall.h>
|
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#include <sys/stat.h>
|
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#include <fcntl.h>
|
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|
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int
|
||||
mknod (char const *file_name, mode_t mode, dev_t dev)
|
||||
{
|
||||
#if defined (SYS_mknod)
|
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return _sys_call3 (SYS_mknod, (long) file_name, (long) mode, (long) dev);
|
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#elif defined (SYS_mknodat)
|
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return _sys_call4 (SYS_mknodat, AT_FDCWD, (long) file_name, (long) mode, (long) dev);
|
||||
#else
|
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#error No usable mknod syscall
|
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#endif
|
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}
|
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|
|
|
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|
|
@ -1,6 +1,7 @@
|
|||
/* -*-comment-start: "//";comment-end:""-*-
|
||||
* GNU Mes --- Maxwell Equations of Software
|
||||
* Copyright © 2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
||||
* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
|
||||
*
|
||||
* This file is part of GNU Mes.
|
||||
*
|
||||
|
|
@ -21,9 +22,16 @@
|
|||
#include <linux/syscall.h>
|
||||
#include <arch/syscall.h>
|
||||
#include <unistd.h>
|
||||
#include <fcntl.h>
|
||||
|
||||
int
|
||||
pipe (int filedes[2])
|
||||
{
|
||||
#if defined (SYS_pipe)
|
||||
return _sys_call1 (SYS_pipe, (long) filedes);
|
||||
#elif defined (SYS_pipe2)
|
||||
return _sys_call2 (SYS_pipe2, (long) filedes, 0);
|
||||
#else
|
||||
#error No usable pipe syscall found
|
||||
#endif
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
/* -*-comment-start: "//";comment-end:""-*-
|
||||
* GNU Mes --- Maxwell Equations of Software
|
||||
* Copyright © 2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
||||
* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
|
||||
*
|
||||
* This file is part of GNU Mes.
|
||||
*
|
||||
|
|
@ -20,10 +21,17 @@
|
|||
|
||||
#include <linux/syscall.h>
|
||||
#include <arch/syscall.h>
|
||||
#include <fcntl.h>
|
||||
#include <sys/stat.h>
|
||||
|
||||
ssize_t
|
||||
readlink (char const *file_name, char *buffer, size_t size)
|
||||
{
|
||||
#if defined (SYS_readlink)
|
||||
return _sys_call3 (SYS_readlink, (long) file_name, (long) buffer, (long) size);
|
||||
#elif defined (SYS_readlinkat)
|
||||
return _sys_call4 (SYS_readlinkat, AT_FDCWD, (long) file_name, (long) buffer, (long) size);
|
||||
#else
|
||||
#error No usable readlink syscall
|
||||
#endif
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
/* -*-comment-start: "//";comment-end:""-*-
|
||||
* GNU Mes --- Maxwell Equations of Software
|
||||
* Copyright © 2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
||||
* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
|
||||
*
|
||||
* This file is part of GNU Mes.
|
||||
*
|
||||
|
|
@ -21,9 +22,16 @@
|
|||
#include <linux/syscall.h>
|
||||
#include <arch/syscall.h>
|
||||
#include <unistd.h>
|
||||
#include <fcntl.h>
|
||||
|
||||
int
|
||||
rename (char const *old_name, char const *new_name)
|
||||
{
|
||||
#if defined (SYS_rename)
|
||||
return _sys_call2 (SYS_rename, (long) old_name, (long) new_name);
|
||||
#elif defined (SYS_renameat2)
|
||||
return _sys_call5 (SYS_renameat2, AT_FDCWD, (long) old_name, AT_FDCWD, (long) new_name, 0);
|
||||
#else
|
||||
#error No usable rename syscall
|
||||
#endif
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
/* -*-comment-start: "//";comment-end:""-*-
|
||||
* GNU Mes --- Maxwell Equations of Software
|
||||
* Copyright © 2016,2017,2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
||||
* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
|
||||
*
|
||||
* This file is part of GNU Mes.
|
||||
*
|
||||
|
|
@ -20,9 +21,16 @@
|
|||
|
||||
#include <linux/syscall.h>
|
||||
#include <arch/syscall.h>
|
||||
#include <fcntl.h>
|
||||
|
||||
int
|
||||
rmdir (char const *file_name)
|
||||
{
|
||||
#if defined (SYS_rmdir)
|
||||
return _sys_call1 (SYS_rmdir, (long) file_name);
|
||||
#elif defined (SYS_unlinkat)
|
||||
return _sys_call3 (SYS_unlinkat, AT_FDCWD, (long) file_name, AT_REMOVEDIR);
|
||||
#else
|
||||
#error No usable rmdir syscall
|
||||
#endif
|
||||
}
|
||||
|
|
|
|||
|
|
@ -23,8 +23,7 @@
|
|||
#include <unistd.h>
|
||||
#include <signal.h>
|
||||
|
||||
#if __i386__
|
||||
#else
|
||||
#if defined (SYS_rt_sigreturn)
|
||||
void
|
||||
_restorer_for_siginfo (void)
|
||||
{
|
||||
|
|
@ -36,8 +35,8 @@ sighandler_t
|
|||
signal (int signum, sighandler_t action)
|
||||
{
|
||||
#if __i386__
|
||||
return (sighandler_t) _sys_call2 (SYS_signal, signum, (long) action);
|
||||
#else
|
||||
return _sys_call2 (SYS_signal, signum, (long) action);
|
||||
#elif defined (SYS_rt_sigaction)
|
||||
static struct sigaction setup_action = { 0 };
|
||||
static struct sigaction old = { 0 };
|
||||
unsigned short bitindex;
|
||||
|
|
@ -68,5 +67,7 @@ signal (int signum, sighandler_t action)
|
|||
if (r)
|
||||
return 0;
|
||||
return old.sa_handler;
|
||||
#else
|
||||
#error no signal
|
||||
#endif
|
||||
}
|
||||
|
|
|
|||
|
|
@ -26,7 +26,7 @@
|
|||
int
|
||||
sigprocmask (int how, sigset_t const *set, sigset_t * oldset)
|
||||
{
|
||||
#if __i386__
|
||||
#if SYS_sigprocmask
|
||||
return _sys_call3 (SYS_sigprocmask, (long) how, (long) set, (long) oldset);
|
||||
#else
|
||||
return _sys_call3 (SYS_rt_sigprocmask, (long) how, (long) set, (long) oldset);
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
/* -*-comment-start: "//";comment-end:""-*-
|
||||
* GNU Mes --- Maxwell Equations of Software
|
||||
* Copyright © 2016,2017,2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
||||
* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
|
||||
*
|
||||
* This file is part of GNU Mes.
|
||||
*
|
||||
|
|
@ -20,10 +21,17 @@
|
|||
|
||||
#include <linux/syscall.h>
|
||||
#include <arch/syscall.h>
|
||||
#include <fcntl.h>
|
||||
#include <sys/stat.h>
|
||||
|
||||
int
|
||||
stat (char const *file_name, struct stat *statbuf)
|
||||
{
|
||||
#if defined (SYS_stat)
|
||||
return _sys_call2 (SYS_stat, (long) file_name, (long) statbuf);
|
||||
#elif defined (SYS_newfstatat)
|
||||
return _sys_call4 (SYS_newfstatat, AT_FDCWD, (long) file_name, (long) statbuf, AT_SYMLINK_NOFOLLOW);
|
||||
#else
|
||||
#error No usable stat syscall
|
||||
#endif
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
/* -*-comment-start: "//";comment-end:""-*-
|
||||
* GNU Mes --- Maxwell Equations of Software
|
||||
* Copyright © 2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
||||
* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
|
||||
*
|
||||
* This file is part of GNU Mes.
|
||||
*
|
||||
|
|
@ -20,10 +21,17 @@
|
|||
|
||||
#include <linux/syscall.h>
|
||||
#include <arch/syscall.h>
|
||||
#include <fcntl.h>
|
||||
#include <unistd.h>
|
||||
|
||||
int
|
||||
symlink (char const *old_name, char const *new_name)
|
||||
{
|
||||
#if defined (SYS_symlink)
|
||||
return _sys_call2 (SYS_symlink, (long) old_name, (long) new_name);
|
||||
#elif defined (SYS_symlinkat)
|
||||
return _sys_call3 (SYS_symlinkat, (long) old_name, AT_FDCWD, (long) new_name);
|
||||
#else
|
||||
#error No usable symlink syscall
|
||||
#endif
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
/* -*-comment-start: "//";comment-end:""-*-
|
||||
* GNU Mes --- Maxwell Equations of Software
|
||||
* Copyright © 2016,2017,2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
||||
* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
|
||||
*
|
||||
* This file is part of GNU Mes.
|
||||
*
|
||||
|
|
@ -21,10 +22,17 @@
|
|||
#include <mes/lib.h>
|
||||
#include <linux/syscall.h>
|
||||
#include <arch/syscall.h>
|
||||
#include <fcntl.h>
|
||||
|
||||
int
|
||||
unlink (char const *file_name)
|
||||
{
|
||||
long long_file_name = cast_charp_to_long (file_name);
|
||||
#if defined (SYS_unlink)
|
||||
return _sys_call1 (SYS_unlink, long_file_name);
|
||||
#elif defined (SYS_unlinkat)
|
||||
return _sys_call3 (SYS_unlinkat, AT_FDCWD, long_file_name, 0);
|
||||
#else
|
||||
#error No usable unlink syscall
|
||||
#endif
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue