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authorEric Andersen <andersen@codepoet.org>2002-07-22 17:11:58 +0000
committerEric Andersen <andersen@codepoet.org>2002-07-22 17:11:58 +0000
commita9752043dd652d0fb4addf947b76e57c588f430c (patch)
tree7697ee62a991aeb8c13391e38873c8d48745c478 /libc
parent72677cc3d8403da4b35c99617352bde347780222 (diff)
Add some syscalls which I moved out of syscalls.c
-Erik
Diffstat (limited to 'libc')
-rw-r--r--libc/sysdeps/linux/common/_exit.c39
-rw-r--r--libc/sysdeps/linux/common/llseek.c63
-rw-r--r--libc/sysdeps/linux/common/mknod.c53
-rw-r--r--libc/sysdeps/linux/common/setuid.c44
-rw-r--r--libc/sysdeps/linux/common/sync.c40
5 files changed, 239 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/_exit.c b/libc/sysdeps/linux/common/_exit.c
new file mode 100644
index 000000000..5e1f180bd
--- /dev/null
+++ b/libc/sysdeps/linux/common/_exit.c
@@ -0,0 +1,39 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * exit syscall for uClibc
+ *
+ * Copyright (C) 2002 by Erik Andersen <andersen@codpoet.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program 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 Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#define _GNU_SOURCE
+#include <features.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+
+#ifndef INLINE_SYSCALL
+#define INLINE_SYSCALL(name, nr, args...) __syscall_exit (args)
+#define __NR___syscall_exit __NR_exit
+static inline _syscall1(void, __syscall_exit, int, status);
+#endif
+
+void _exit(int status)
+{
+ INLINE_SYSCALL(exit, 1, status);
+}
+
diff --git a/libc/sysdeps/linux/common/llseek.c b/libc/sysdeps/linux/common/llseek.c
new file mode 100644
index 000000000..63534fa71
--- /dev/null
+++ b/libc/sysdeps/linux/common/llseek.c
@@ -0,0 +1,63 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * llseek/lseek64 syscall for uClibc
+ *
+ * Copyright (C) 2002 by Erik Andersen <andersen@codpoet.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program 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 Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#define _GNU_SOURCE
+#define _LARGEFILE64_SOURCE
+#include <features.h>
+#undef __OPTIMIZE__
+/* We absolutely do _NOT_ want interfaces silently
+ * * * renamed under us or very bad things will happen... */
+#ifdef __USE_FILE_OFFSET64
+# undef __USE_FILE_OFFSET64
+#endif
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+
+
+#if defined __NR__llseek && defined __UCLIBC_HAVE_LFS__
+
+#ifndef INLINE_SYSCALL
+#define INLINE_SYSCALL(name, nr, args...) __syscall_llseek (args)
+#define __NR___syscall_llseek __NR__llseek
+static inline _syscall5(int, __syscall_llseek, int, fd, off_t, offset_hi,
+ off_t, offset_lo, loff_t *, result, int, whence);
+#endif
+
+loff_t __libc_lseek64(int fd, loff_t offset, int whence)
+{
+ loff_t result;
+ return(loff_t)(INLINE_SYSCALL (_llseek, 5, fd, (off_t) (offset >> 32),
+ (off_t) (offset & 0xffffffff), &result, whence) ?: result);
+}
+weak_alias(__libc_lseek64, llseek);
+weak_alias(__libc_lseek64, lseek64);
+#else
+extern __off_t __libc_lseek(int fildes, off_t offset, int whence);
+loff_t __libc_lseek64(int fd, loff_t offset, int whence)
+{
+ return(loff_t)(__libc_lseek(fd, (off_t) (offset & 0xffffffff), whence));
+}
+weak_alias(__libc_lseek, llseek)
+weak_alias(__libc_lseek, lseek64)
+#endif
+
diff --git a/libc/sysdeps/linux/common/mknod.c b/libc/sysdeps/linux/common/mknod.c
new file mode 100644
index 000000000..913cea29b
--- /dev/null
+++ b/libc/sysdeps/linux/common/mknod.c
@@ -0,0 +1,53 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * mknod syscall for uClibc
+ *
+ * Copyright (C) 2002 by Erik Andersen <andersen@codpoet.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program 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 Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#define _GNU_SOURCE
+#define __FORCE_GLIBC
+#include <features.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+#include <asm/posix_types.h>
+
+#ifndef INLINE_SYSCALL
+#define INLINE_SYSCALL(name, nr, args...) __syscall_mknod (args)
+#define __NR___syscall_mknod __NR_mknod
+static inline _syscall3(int, __syscall_mknod, const char *, path,
+ unsigned short int, mode, unsigned short int, dev);
+#endif
+
+int __xmknod (int version, const char * path, __mode_t mode, __dev_t *dev)
+{
+ unsigned short int k_dev;
+ /* We must convert the value to dev_t type used by the kernel. */
+ k_dev = ((major (*dev) & 0xff) << 8) | (minor (*dev) & 0xff);
+
+ switch(version)
+ {
+ case 1:
+ return INLINE_SYSCALL (mknod, 3, path, mode, k_dev);
+ default:
+ __set_errno(EINVAL);
+ return -1;
+ }
+}
+
diff --git a/libc/sysdeps/linux/common/setuid.c b/libc/sysdeps/linux/common/setuid.c
new file mode 100644
index 000000000..a9ca830df
--- /dev/null
+++ b/libc/sysdeps/linux/common/setuid.c
@@ -0,0 +1,44 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * setuid syscall for uClibc
+ *
+ * Copyright (C) 2002 by Erik Andersen <andersen@codpoet.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program 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 Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#define _GNU_SOURCE
+#include <features.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+
+#ifndef INLINE_SYSCALL
+#define INLINE_SYSCALL(name, nr, args...) __syscall_setuid (args)
+#define __NR___syscall_setuid __NR_setuid
+static inline _syscall1(int, __syscall_setuid, int, id);
+#endif
+
+int setuid(uid_t uid)
+{
+ if (uid == (uid_t) ~0 || uid != (uid_t) ((int) uid)) {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ return(INLINE_SYSCALL(setuid, 1, uid));
+}
+
diff --git a/libc/sysdeps/linux/common/sync.c b/libc/sysdeps/linux/common/sync.c
new file mode 100644
index 000000000..f256c6607
--- /dev/null
+++ b/libc/sysdeps/linux/common/sync.c
@@ -0,0 +1,40 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * sync syscall for uClibc
+ *
+ * Copyright (C) 2002 by Erik Andersen <andersen@codpoet.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program 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 Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#define _GNU_SOURCE
+#include <features.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#ifndef INLINE_SYSCALL
+#define INLINE_SYSCALL(name, nr, args...) __syscall_sync (args)
+#define __NR___syscall_sync __NR_sync
+static inline _syscall0(void, __syscall_sync);
+#endif
+
+void sync(void)
+{
+ INLINE_SYSCALL(sync, 0);
+}
+