sh: sys_sh consolidation for arch_get_unmapped_area().
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c
index d545a68..59cd285 100644
--- a/arch/sh/kernel/sys_sh.c
+++ b/arch/sh/kernel/sys_sh.c
@@ -7,7 +7,6 @@
*
* Taken from i386 version.
*/
-
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/mm.h>
@@ -27,28 +26,7 @@
#include <asm/uaccess.h>
#include <asm/unistd.h>
-/*
- * sys_pipe() is the normal C calling standard for creating
- * a pipe. It's not the way Unix traditionally does this, though.
- */
-asmlinkage int sys_pipe(unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs __regs)
-{
- struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
- int fd[2];
- int error;
-
- error = do_pipe(fd);
- if (!error) {
- regs->regs[1] = fd[1];
- return fd[0];
- }
- return error;
-}
-
unsigned long shm_align_mask = PAGE_SIZE - 1; /* Sane caches */
-
EXPORT_SYMBOL(shm_align_mask);
#ifdef CONFIG_MMU
@@ -140,7 +118,7 @@
#endif /* CONFIG_MMU */
static inline long
-do_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
+do_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
unsigned long flags, int fd, unsigned long pgoff)
{
int error = -EBADF;
@@ -195,12 +173,13 @@
if (call <= SEMCTL)
switch (call) {
case SEMOP:
- return sys_semtimedop(first, (struct sembuf __user *)ptr,
+ return sys_semtimedop(first,
+ (struct sembuf __user *)ptr,
second, NULL);
case SEMTIMEDOP:
- return sys_semtimedop(first, (struct sembuf __user *)ptr,
- second,
- (const struct timespec __user *)fifth);
+ return sys_semtimedop(first,
+ (struct sembuf __user *)ptr, second,
+ (const struct timespec __user *)fifth);
case SEMGET:
return sys_semget (first, second, third);
case SEMCTL: {
@@ -215,25 +194,28 @@
return -EINVAL;
}
- if (call <= MSGCTL)
+ if (call <= MSGCTL)
switch (call) {
case MSGSND:
- return sys_msgsnd (first, (struct msgbuf __user *) ptr,
+ return sys_msgsnd (first, (struct msgbuf __user *) ptr,
second, third);
case MSGRCV:
switch (version) {
- case 0: {
+ case 0:
+ {
struct ipc_kludge tmp;
+
if (!ptr)
return -EINVAL;
-
+
if (copy_from_user(&tmp,
- (struct ipc_kludge __user *) ptr,
+ (struct ipc_kludge __user *) ptr,
sizeof (tmp)))
return -EFAULT;
+
return sys_msgrcv (first, tmp.msgp, second,
tmp.msgtyp, third);
- }
+ }
default:
return sys_msgrcv (first,
(struct msgbuf __user *) ptr,
@@ -247,7 +229,7 @@
default:
return -EINVAL;
}
- if (call <= SHMCTL)
+ if (call <= SHMCTL)
switch (call) {
case SHMAT:
switch (version) {
@@ -265,7 +247,7 @@
return do_shmat (first, (char __user *) ptr,
second, (ulong *) third);
}
- case SHMDT:
+ case SHMDT:
return sys_shmdt ((char __user *)ptr);
case SHMGET:
return sys_shmget (first, second, third);
@@ -275,7 +257,7 @@
default:
return -EINVAL;
}
-
+
return -EINVAL;
}
@@ -289,49 +271,3 @@
up_read(&uts_sem);
return err?-EFAULT:0;
}
-
-asmlinkage ssize_t sys_pread_wrapper(unsigned int fd, char * buf,
- size_t count, long dummy, loff_t pos)
-{
- return sys_pread64(fd, buf, count, pos);
-}
-
-asmlinkage ssize_t sys_pwrite_wrapper(unsigned int fd, const char * buf,
- size_t count, long dummy, loff_t pos)
-{
- return sys_pwrite64(fd, buf, count, pos);
-}
-
-asmlinkage int sys_fadvise64_64_wrapper(int fd, u32 offset0, u32 offset1,
- u32 len0, u32 len1, int advice)
-{
-#ifdef __LITTLE_ENDIAN__
- return sys_fadvise64_64(fd, (u64)offset1 << 32 | offset0,
- (u64)len1 << 32 | len0, advice);
-#else
- return sys_fadvise64_64(fd, (u64)offset0 << 32 | offset1,
- (u64)len0 << 32 | len1, advice);
-#endif
-}
-
-#if defined(CONFIG_CPU_SH2) || defined(CONFIG_CPU_SH2A)
-#define SYSCALL_ARG3 "trapa #0x23"
-#else
-#define SYSCALL_ARG3 "trapa #0x13"
-#endif
-
-/*
- * Do a system call from kernel instead of calling sys_execve so we
- * end up with proper pt_regs.
- */
-int kernel_execve(const char *filename, char *const argv[], char *const envp[])
-{
- register long __sc0 __asm__ ("r3") = __NR_execve;
- register long __sc4 __asm__ ("r4") = (long) filename;
- register long __sc5 __asm__ ("r5") = (long) argv;
- register long __sc6 __asm__ ("r6") = (long) envp;
- __asm__ __volatile__ (SYSCALL_ARG3 : "=z" (__sc0)
- : "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6)
- : "memory");
- return __sc0;
-}