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Diffstat (limited to 'arch/sparc/kernel/sys_sparc_32.c')
-rw-r--r--arch/sparc/kernel/sys_sparc_32.c177
1 files changed, 6 insertions, 171 deletions
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index 03035c852a43..ee995b7dae7e 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -45,7 +45,8 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
/* We do not accept a shared mapping if it would violate
* cache aliasing constraints.
*/
- if ((flags & MAP_SHARED) && (addr & (SHMLBA - 1)))
+ if ((flags & MAP_SHARED) &&
+ ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
return -EINVAL;
return addr;
}
@@ -79,15 +80,6 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
}
}
-asmlinkage unsigned long sparc_brk(unsigned long brk)
-{
- if(ARCH_SUN4C) {
- if ((brk & 0xe0000000) != (current->mm->brk & 0xe0000000))
- return current->mm->brk;
- }
- return sys_brk(brk);
-}
-
/*
* sys_pipe() is the normal C calling standard for creating
* a pipe. It's not the way unix traditionally does this, though.
@@ -106,119 +98,6 @@ out:
return error;
}
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-
-asmlinkage int sys_ipc (uint call, int first, int second, int third, void __user *ptr, long fifth)
-{
- int version, err;
-
- version = call >> 16; /* hack for backward compatibility */
- call &= 0xffff;
-
- if (call <= SEMCTL)
- switch (call) {
- case SEMOP:
- err = sys_semtimedop (first, (struct sembuf __user *)ptr, second, NULL);
- goto out;
- case SEMTIMEDOP:
- err = sys_semtimedop (first, (struct sembuf __user *)ptr, second, (const struct timespec __user *) fifth);
- goto out;
- case SEMGET:
- err = sys_semget (first, second, third);
- goto out;
- case SEMCTL: {
- union semun fourth;
- err = -EINVAL;
- if (!ptr)
- goto out;
- err = -EFAULT;
- if (get_user(fourth.__pad,
- (void __user * __user *)ptr))
- goto out;
- err = sys_semctl (first, second, third, fourth);
- goto out;
- }
- default:
- err = -ENOSYS;
- goto out;
- }
- if (call <= MSGCTL)
- switch (call) {
- case MSGSND:
- err = sys_msgsnd (first, (struct msgbuf __user *) ptr,
- second, third);
- goto out;
- case MSGRCV:
- switch (version) {
- case 0: {
- struct ipc_kludge tmp;
- err = -EINVAL;
- if (!ptr)
- goto out;
- err = -EFAULT;
- if (copy_from_user(&tmp, (struct ipc_kludge __user *) ptr, sizeof (tmp)))
- goto out;
- err = sys_msgrcv (first, tmp.msgp, second, tmp.msgtyp, third);
- goto out;
- }
- case 1: default:
- err = sys_msgrcv (first,
- (struct msgbuf __user *) ptr,
- second, fifth, third);
- goto out;
- }
- case MSGGET:
- err = sys_msgget ((key_t) first, second);
- goto out;
- case MSGCTL:
- err = sys_msgctl (first, second, (struct msqid_ds __user *) ptr);
- goto out;
- default:
- err = -ENOSYS;
- goto out;
- }
- if (call <= SHMCTL)
- switch (call) {
- case SHMAT:
- switch (version) {
- case 0: default: {
- ulong raddr;
- err = do_shmat (first, (char __user *) ptr, second, &raddr);
- if (err)
- goto out;
- err = -EFAULT;
- if (put_user (raddr, (ulong __user *) third))
- goto out;
- err = 0;
- goto out;
- }
- case 1: /* iBCS2 emulator entry point */
- err = -EINVAL;
- goto out;
- }
- case SHMDT:
- err = sys_shmdt ((char __user *)ptr);
- goto out;
- case SHMGET:
- err = sys_shmget (first, second, third);
- goto out;
- case SHMCTL:
- err = sys_shmctl (first, second, (struct shmid_ds __user *) ptr);
- goto out;
- default:
- err = -ENOSYS;
- goto out;
- }
- else
- err = -ENOSYS;
-out:
- return err;
-}
-
int sparc_mmap_check(unsigned long addr, unsigned long len)
{
if (ARCH_SUN4C &&
@@ -234,31 +113,6 @@ int sparc_mmap_check(unsigned long addr, unsigned long len)
}
/* Linux version of mmap */
-static unsigned long do_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags, unsigned long fd,
- unsigned long pgoff)
-{
- struct file * file = NULL;
- unsigned long retval = -EBADF;
-
- if (!(flags & MAP_ANONYMOUS)) {
- file = fget(fd);
- if (!file)
- goto out;
- }
-
- len = PAGE_ALIGN(len);
- flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-
- down_write(&current->mm->mmap_sem);
- retval = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
- up_write(&current->mm->mmap_sem);
-
- if (file)
- fput(file);
-out:
- return retval;
-}
asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags, unsigned long fd,
@@ -266,14 +120,16 @@ asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
{
/* Make sure the shift for mmap2 is constant (12), no matter what PAGE_SIZE
we have. */
- return do_mmap2(addr, len, prot, flags, fd, pgoff >> (PAGE_SHIFT - 12));
+ return sys_mmap_pgoff(addr, len, prot, flags, fd,
+ pgoff >> (PAGE_SHIFT - 12));
}
asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags, unsigned long fd,
unsigned long off)
{
- return do_mmap2(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
+ /* no alignment check? */
+ return sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
}
long sparc_remap_file_pages(unsigned long start, unsigned long size,
@@ -287,27 +143,6 @@ long sparc_remap_file_pages(unsigned long start, unsigned long size,
(pgoff >> (PAGE_SHIFT - 12)), flags);
}
-extern unsigned long do_mremap(unsigned long addr,
- unsigned long old_len, unsigned long new_len,
- unsigned long flags, unsigned long new_addr);
-
-asmlinkage unsigned long sparc_mremap(unsigned long addr,
- unsigned long old_len, unsigned long new_len,
- unsigned long flags, unsigned long new_addr)
-{
- unsigned long ret = -EINVAL;
-
- if (unlikely(sparc_mmap_check(addr, old_len)))
- goto out;
- if (unlikely(sparc_mmap_check(new_addr, new_len)))
- goto out;
- down_write(&current->mm->mmap_sem);
- ret = do_mremap(addr, old_len, new_len, flags, new_addr);
- up_write(&current->mm->mmap_sem);
-out:
- return ret;
-}
-
/* we come to here via sys_nis_syscall so it can setup the regs argument */
asmlinkage unsigned long
c_sys_nis_syscall (struct pt_regs *regs)
generated by cgit v1.2.3 (git 2.46.0) at 2025-09-03 03:14:47 +0000