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Diffstat (limited to 'ANDROID_3.4.5/arch/sparc/kernel/sys_sparc_32.c')
-rw-r--r--ANDROID_3.4.5/arch/sparc/kernel/sys_sparc_32.c300
1 files changed, 0 insertions, 300 deletions
diff --git a/ANDROID_3.4.5/arch/sparc/kernel/sys_sparc_32.c b/ANDROID_3.4.5/arch/sparc/kernel/sys_sparc_32.c
deleted file mode 100644
index 42b282fa..00000000
--- a/ANDROID_3.4.5/arch/sparc/kernel/sys_sparc_32.c
+++ /dev/null
@@ -1,300 +0,0 @@
-/* linux/arch/sparc/kernel/sys_sparc.c
- *
- * This file contains various random system calls that
- * have a non-standard calling sequence on the Linux/sparc
- * platform.
- */
-
-#include <linux/errno.h>
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/stat.h>
-#include <linux/syscalls.h>
-#include <linux/mman.h>
-#include <linux/utsname.h>
-#include <linux/smp.h>
-#include <linux/ipc.h>
-
-#include <asm/uaccess.h>
-#include <asm/unistd.h>
-
-/* #define DEBUG_UNIMP_SYSCALL */
-
-/* XXX Make this per-binary type, this way we can detect the type of
- * XXX a binary. Every Sparc executable calls this very early on.
- */
-asmlinkage unsigned long sys_getpagesize(void)
-{
- return PAGE_SIZE; /* Possibly older binaries want 8192 on sun4's? */
-}
-
-#define COLOUR_ALIGN(addr) (((addr)+SHMLBA-1)&~(SHMLBA-1))
-
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags)
-{
- struct vm_area_struct * vmm;
-
- if (flags & MAP_FIXED) {
- /* We do not accept a shared mapping if it would violate
- * cache aliasing constraints.
- */
- if ((flags & MAP_SHARED) &&
- ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
- return -EINVAL;
- return addr;
- }
-
- /* See asm-sparc/uaccess.h */
- if (len > TASK_SIZE - PAGE_SIZE)
- return -ENOMEM;
- if (ARCH_SUN4C && len > 0x20000000)
- return -ENOMEM;
- if (!addr)
- addr = TASK_UNMAPPED_BASE;
-
- if (flags & MAP_SHARED)
- addr = COLOUR_ALIGN(addr);
- else
- addr = PAGE_ALIGN(addr);
-
- for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) {
- /* At this point: (!vmm || addr < vmm->vm_end). */
- if (ARCH_SUN4C && addr < 0xe0000000 && 0x20000000 - len < addr) {
- addr = PAGE_OFFSET;
- vmm = find_vma(current->mm, PAGE_OFFSET);
- }
- if (TASK_SIZE - PAGE_SIZE - len < addr)
- return -ENOMEM;
- if (!vmm || addr + len <= vmm->vm_start)
- return addr;
- addr = vmm->vm_end;
- if (flags & MAP_SHARED)
- addr = COLOUR_ALIGN(addr);
- }
-}
-
-/*
- * sys_pipe() is the normal C calling standard for creating
- * a pipe. It's not the way unix traditionally does this, though.
- */
-asmlinkage int sparc_pipe(struct pt_regs *regs)
-{
- int fd[2];
- int error;
-
- error = do_pipe_flags(fd, 0);
- if (error)
- goto out;
- regs->u_regs[UREG_I1] = fd[1];
- error = fd[0];
-out:
- return error;
-}
-
-int sparc_mmap_check(unsigned long addr, unsigned long len)
-{
- if (ARCH_SUN4C &&
- (len > 0x20000000 ||
- (addr < 0xe0000000 && addr + len > 0x20000000)))
- return -EINVAL;
-
- /* See asm-sparc/uaccess.h */
- if (len > TASK_SIZE - PAGE_SIZE || addr + len > TASK_SIZE - PAGE_SIZE)
- return -EINVAL;
-
- return 0;
-}
-
-/* Linux version of mmap */
-
-asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags, unsigned long fd,
- unsigned long pgoff)
-{
- /* Make sure the shift for mmap2 is constant (12), no matter what PAGE_SIZE
- we have. */
- 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)
-{
- /* 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,
- unsigned long prot, unsigned long pgoff,
- unsigned long flags)
-{
- /* This works on an existing mmap so we don't need to validate
- * the range as that was done at the original mmap call.
- */
- return sys_remap_file_pages(start, size, prot,
- (pgoff >> (PAGE_SHIFT - 12)), flags);
-}
-
-/* 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)
-{
- static int count = 0;
-
- if (count++ > 5)
- return -ENOSYS;
- printk ("%s[%d]: Unimplemented SPARC system call %d\n",
- current->comm, task_pid_nr(current), (int)regs->u_regs[1]);
-#ifdef DEBUG_UNIMP_SYSCALL
- show_regs (regs);
-#endif
- return -ENOSYS;
-}
-
-/* #define DEBUG_SPARC_BREAKPOINT */
-
-asmlinkage void
-sparc_breakpoint (struct pt_regs *regs)
-{
- siginfo_t info;
-
-#ifdef DEBUG_SPARC_BREAKPOINT
- printk ("TRAP: Entering kernel PC=%x, nPC=%x\n", regs->pc, regs->npc);
-#endif
- info.si_signo = SIGTRAP;
- info.si_errno = 0;
- info.si_code = TRAP_BRKPT;
- info.si_addr = (void __user *)regs->pc;
- info.si_trapno = 0;
- force_sig_info(SIGTRAP, &info, current);
-
-#ifdef DEBUG_SPARC_BREAKPOINT
- printk ("TRAP: Returning to space: PC=%x nPC=%x\n", regs->pc, regs->npc);
-#endif
-}
-
-asmlinkage int
-sparc_sigaction (int sig, const struct old_sigaction __user *act,
- struct old_sigaction __user *oact)
-{
- struct k_sigaction new_ka, old_ka;
- int ret;
-
- WARN_ON_ONCE(sig >= 0);
- sig = -sig;
-
- if (act) {
- unsigned long mask;
-
- if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
- __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
- __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
- return -EFAULT;
- __get_user(new_ka.sa.sa_flags, &act->sa_flags);
- __get_user(mask, &act->sa_mask);
- siginitset(&new_ka.sa.sa_mask, mask);
- new_ka.ka_restorer = NULL;
- }
-
- ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
- if (!ret && oact) {
- /* In the clone() case we could copy half consistent
- * state to the user, however this could sleep and
- * deadlock us if we held the signal lock on SMP. So for
- * now I take the easy way out and do no locking.
- */
- if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
- __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
- __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
- return -EFAULT;
- __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
- __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
- }
-
- return ret;
-}
-
-asmlinkage long
-sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- void __user *restorer,
- size_t sigsetsize)
-{
- struct k_sigaction new_ka, old_ka;
- int ret;
-
- /* XXX: Don't preclude handling different sized sigset_t's. */
- if (sigsetsize != sizeof(sigset_t))
- return -EINVAL;
-
- if (act) {
- new_ka.ka_restorer = restorer;
- if (copy_from_user(&new_ka.sa, act, sizeof(*act)))
- return -EFAULT;
- }
-
- ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
- if (!ret && oact) {
- if (copy_to_user(oact, &old_ka.sa, sizeof(*oact)))
- return -EFAULT;
- }
-
- return ret;
-}
-
-asmlinkage int sys_getdomainname(char __user *name, int len)
-{
- int nlen, err;
-
- if (len < 0)
- return -EINVAL;
-
- down_read(&uts_sem);
-
- nlen = strlen(utsname()->domainname) + 1;
- err = -EINVAL;
- if (nlen > len)
- goto out;
-
- err = -EFAULT;
- if (!copy_to_user(name, utsname()->domainname, nlen))
- err = 0;
-
-out:
- up_read(&uts_sem);
- return err;
-}
-
-/*
- * 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,
- const char *const argv[],
- const char *const envp[])
-{
- long __res;
- register long __g1 __asm__ ("g1") = __NR_execve;
- register long __o0 __asm__ ("o0") = (long)(filename);
- register long __o1 __asm__ ("o1") = (long)(argv);
- register long __o2 __asm__ ("o2") = (long)(envp);
- asm volatile ("t 0x10\n\t"
- "bcc 1f\n\t"
- "mov %%o0, %0\n\t"
- "sub %%g0, %%o0, %0\n\t"
- "1:\n\t"
- : "=r" (__res), "=&r" (__o0)
- : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__g1)
- : "cc");
- return __res;
-}