1 files changed, 24 insertions, 102 deletions

diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index 675c9e11ada..646988d4c1a 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -19,12 +19,13 @@
 #include <linux/mman.h>
 #include <linux/utsname.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/ipc.h>
 
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
 
+#include "systbls.h"
+
 /* #define DEBUG_UNIMP_SYSCALL */
 
 /* XXX Make this per-binary type, this way we can detect the type of
@@ -35,11 +36,9 @@ 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;
+	struct vm_unmapped_area_info info;
 
 	if (flags & MAP_FIXED) {
 		/* We do not accept a shared mapping if it would violate
@@ -54,37 +53,24 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	/* 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);
-	}
+	info.flags = 0;
+	info.length = len;
+	info.low_limit = addr;
+	info.high_limit = TASK_SIZE;
+	info.align_mask = (flags & MAP_SHARED) ?
+		(PAGE_MASK & (SHMLBA - 1)) : 0;
+	info.align_offset = pgoff << PAGE_SHIFT;
+	return vm_unmapped_area(&info);
 }
 
 /*
  * 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)
+asmlinkage long sparc_pipe(struct pt_regs *regs)
 {
 	int fd[2];
 	int error;
@@ -100,11 +86,6 @@ out:
 
 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;
@@ -114,7 +95,7 @@ int sparc_mmap_check(unsigned long addr, unsigned long len)
 
 /* Linux version of mmap */
 
-asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
+asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
 	unsigned long prot, unsigned long flags, unsigned long fd,
 	unsigned long pgoff)
 {
@@ -124,7 +105,7 @@ asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
 			      pgoff >> (PAGE_SHIFT - 12));
 }
 
-asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
+asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
 	unsigned long prot, unsigned long flags, unsigned long fd,
 	unsigned long off)
 {
@@ -181,54 +162,19 @@ sparc_breakpoint (struct pt_regs *regs)
 #endif
 }
 
-asmlinkage int
-sparc_sigaction (int sig, const struct old_sigaction __user *act,
-		 struct old_sigaction __user *oact)
+SYSCALL_DEFINE3(sparc_sigaction, int, sig,
+		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;
+	return sys_sigaction(-sig, act, oact);
 }
 
-asmlinkage long
-sys_rt_sigaction(int sig,
-		 const struct sigaction __user *act,
-		 struct sigaction __user *oact,
-		 void __user *restorer,
-		 size_t sigsetsize)
+SYSCALL_DEFINE5(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;
@@ -253,7 +199,7 @@ sys_rt_sigaction(int sig,
 	return ret;
 }
 
-asmlinkage int sys_getdomainname(char __user *name, int len)
+asmlinkage long sys_getdomainname(char __user *name, int len)
 {
  	int nlen, err;
  	
@@ -275,27 +221,3 @@ 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;
-}