microblaze: use generic syscalls.h

The prototypes in syscalls.h all make sense for
microblaze, but for some of them, the actual implementation
in sys_microblaze.c needs to be adapted.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michal Simek <monstr@monstr.eu>

6 files changed, 28 insertions, 62 deletions

diff --git a/arch/microblaze/include/asm/syscalls.h b/arch/microblaze/include/asm/syscalls.h
index ea23843e2c26..720761cc741f 100644
--- a/arch/microblaze/include/asm/syscalls.h
+++ b/arch/microblaze/include/asm/syscalls.h
@@ -1,41 +1,8 @@
 #ifndef __ASM_MICROBLAZE_SYSCALLS_H
-#define __ASM_MICROBLAZE_SYSCALLS_H
-#ifdef __KERNEL__
 
-#include <linux/compiler.h>
-#include <linux/linkage.h>
-#include <linux/types.h>
-#include <linux/signal.h>
+asmlinkage long sys_clone(int flags, unsigned long stack, struct pt_regs *regs);
+#define sys_clone sys_clone
 
-/* FIXME will be removed */
-asmlinkage int sys_ipc(uint call, int first, int second,
-                                int third, void *ptr, long fifth);
+#include <asm-generic/syscalls.h>
 
-struct pt_regs;
-asmlinkage int sys_vfork(struct pt_regs *regs);
-asmlinkage int sys_clone(int flags, unsigned long stack, struct pt_regs *regs);
-asmlinkage int sys_execve(char __user *filenamei, char __user *__user *argv,
-                        char __user *__user *envp, struct pt_regs *regs);
-
-asmlinkage unsigned long sys_mmap2(unsigned long addr, size_t len,
-                        unsigned long prot, unsigned long flags,
-                        unsigned long fd, unsigned long pgoff);
-
-asmlinkage unsigned long sys_mmap(unsigned long addr, size_t len,
-                        unsigned long prot, unsigned long flags,
-                        unsigned long fd, off_t offset);
-
-/* from signal.c */
-asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize,
-                struct pt_regs *regs);
-
-asmlinkage long sys_rt_sigaction(int sig, const struct sigaction __user *act,
-                struct sigaction __user *oact, size_t sigsetsize);
-
-asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
-                struct pt_regs *regs);
-
-asmlinkage long sys_rt_sigreturn(struct pt_regs *regs);
-
-#endif /* __KERNEL__ */
 #endif /* __ASM_MICROBLAZE_SYSCALLS_H */
diff --git a/arch/microblaze/kernel/entry-nommu.S b/arch/microblaze/kernel/entry-nommu.S
index 2eaf3946cb42..9083d85376a4 100644
--- a/arch/microblaze/kernel/entry-nommu.S
+++ b/arch/microblaze/kernel/entry-nommu.S
@@ -551,16 +551,16 @@ no_work_pending:
         rtid    r14, 0
         nop
 
-sys_vfork_wrapper:
-        brid    sys_vfork
+sys_vfork:
+        brid    microblaze_vfork
         addk    r5, r1, r0
 
-sys_clone_wrapper:
-        brid    sys_clone
+sys_clone:
+        brid    microblaze_clone
         addk    r7, r1, r0
 
-sys_execve_wrapper:
-        brid    sys_execve
+sys_execve:
+        brid    microblaze_execve
         addk    r8, r1, r0
 
 sys_rt_sigreturn_wrapper:
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index ea7107652d8d..c7353e79f4a2 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -429,12 +429,11 @@ C_ENTRY(ret_from_fork):
         brid    ret_from_trap;  /* Do normal trap return */
         nop;
 
-C_ENTRY(sys_vfork_wrapper):
+C_ENTRY(sys_vfork):
+        brid    microblaze_vfork        /* Do real work (tail-call) */
         la      r5, r1, PTO
-        brid    sys_vfork       /* Do real work (tail-call) */
-        nop
 
-C_ENTRY(sys_clone_wrapper):
+C_ENTRY(sys_clone):
         bnei    r6, 1f;                 /* See if child SP arg (arg 1) is 0. */
         lwi     r6, r1, PTO+PT_R1;      /* If so, use paret's stack ptr */
 1:      la      r7, r1, PTO;                    /* Arg 2: parent context */
@@ -444,9 +443,9 @@ C_ENTRY(sys_clone_wrapper):
         brid    do_fork         /* Do real work (tail-call) */
         nop;
 
-C_ENTRY(sys_execve_wrapper):
+C_ENTRY(sys_execve):
         la      r8, r1, PTO;            /* add user context as 4th arg */
-        brid    sys_execve;     /* Do real work (tail-call).*/
+        brid    microblaze_execve;      /* Do real work (tail-call).*/
         nop;
 
 C_ENTRY(sys_rt_sigsuspend_wrapper):
diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c
index 2e5862c3002a..493819c25fba 100644
--- a/arch/microblaze/kernel/signal.c
+++ b/arch/microblaze/kernel/signal.c
@@ -46,7 +46,7 @@
 asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset, int in_sycall);
 
 
-asmlinkage int
+asmlinkage long
 sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
                 struct pt_regs *regs)
 {
diff --git a/arch/microblaze/kernel/sys_microblaze.c b/arch/microblaze/kernel/sys_microblaze.c
index 31905ff590b7..8c9ebac5da10 100644
--- a/arch/microblaze/kernel/sys_microblaze.c
+++ b/arch/microblaze/kernel/sys_microblaze.c
@@ -39,7 +39,7 @@
  *
  * This is really horribly ugly. This will be remove with new toolchain.
  */
-asmlinkage int
+asmlinkage long
 sys_ipc(uint call, int first, int second, int third, void *ptr, long fifth)
 {
         int version, ret;
@@ -134,20 +134,20 @@ sys_ipc(uint call, int first, int second, int third, void *ptr, long fifth)
         return ret;
 }
 
-asmlinkage int sys_vfork(struct pt_regs *regs)
+asmlinkage long microblaze_vfork(struct pt_regs *regs)
 {
         return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->r1,
                                                 regs, 0, NULL, NULL);
 }
 
-asmlinkage int sys_clone(int flags, unsigned long stack, struct pt_regs *regs)
+asmlinkage long microblaze_clone(int flags, unsigned long stack, struct pt_regs *regs)
 {
         if (!stack)
                 stack = regs->r1;
         return do_fork(flags, stack, regs, 0, NULL, NULL);
 }
 
-asmlinkage int sys_execve(char __user *filenamei, char __user *__user *argv,
+asmlinkage long microblaze_execve(char __user *filenamei, char __user *__user *argv,
                         char __user *__user *envp, struct pt_regs *regs)
 {
         int error;
@@ -163,8 +163,8 @@ out:
         return error;
 }
 
-asmlinkage unsigned long
-sys_mmap2(unsigned long addr, size_t len,
+asmlinkage long
+sys_mmap2(unsigned long addr, unsigned long len,
         unsigned long prot, unsigned long flags,
         unsigned long fd, unsigned long pgoff)
 {
@@ -189,18 +189,18 @@ out:
         return ret;
 }
 
-asmlinkage unsigned long sys_mmap(unsigned long addr, size_t len,
+asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
                         unsigned long prot, unsigned long flags,
-                        unsigned long fd, off_t offset)
+                        unsigned long fd, off_t pgoff)
 {
         int err = -EINVAL;
 
-        if (offset & ~PAGE_MASK) {
+        if (pgoff & ~PAGE_MASK) {
                 printk(KERN_INFO "no pagemask in mmap\r\n");
                 goto out;
         }
 
-        err = sys_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
+        err = sys_mmap2(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT);
 out:
         return err;
 }
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
index ef0e8932af33..8a609354ddea 100644
--- a/arch/microblaze/kernel/syscall_table.S
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -15,7 +15,7 @@ ENTRY(sys_call_table)
         .long sys_creat
         .long sys_link
         .long sys_unlink                /* 10 */
-        .long sys_execve_wrapper
+        .long sys_execve
         .long sys_chdir
         .long sys_time
         .long sys_mknod
@@ -124,7 +124,7 @@ ENTRY(sys_call_table)
         .long sys_ipc
         .long sys_fsync
         .long sys_ni_syscall            /* sys_sigreturn_wrapper */
-        .long sys_clone_wrapper         /* 120 */
+        .long sys_clone         /* 120 */
         .long sys_setdomainname
         .long sys_newuname
         .long sys_ni_syscall            /* modify_ldt */
@@ -194,7 +194,7 @@ ENTRY(sys_call_table)
         .long sys_sendfile
         .long sys_ni_syscall            /* reserved for streams1 */
         .long sys_ni_syscall            /* reserved for streams2 */
-        .long sys_vfork_wrapper         /* 190 */
+        .long sys_vfork         /* 190 */
         .long sys_getrlimit
         .long sys_mmap2                 /* mmap2 */
         .long sys_truncate64