X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fm68knommu%2Fkernel%2Fsys_m68k.c;h=3265b2d734dbb8b9fc37659475d4863506b86015;hb=refs%2Fheads%2Fvserver;hp=d87e1e0a1336d8aed5f6dffeeb61e75616d03870;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git

diff --git a/arch/m68knommu/kernel/sys_m68k.c b/arch/m68knommu/kernel/sys_m68k.c
index d87e1e0a1..3265b2d73 100644
--- a/arch/m68knommu/kernel/sys_m68k.c
+++ b/arch/m68knommu/kernel/sys_m68k.c
@@ -26,6 +26,7 @@
 #include <asm/traps.h>
 #include <asm/ipc.h>
 #include <asm/cacheflush.h>
+#include <asm/unistd.h>
 
 /*
  * sys_pipe() is the normal C calling standard for creating
@@ -136,7 +137,7 @@ asmlinkage int old_select(struct sel_arg_struct *arg)
 asmlinkage int sys_ipc (uint call, int first, int second,
 			int third, void *ptr, long fifth)
 {
-	int version;
+	int version, ret;
 
 	version = call >> 16; /* hack for backward compatibility */
 	call &= 0xffff;
@@ -189,6 +190,27 @@ asmlinkage int sys_ipc (uint call, int first, int second,
 		default:
 			return -EINVAL;
 		}
+	if (call <= SHMCTL)
+		switch (call) {
+		case SHMAT:
+			switch (version) {
+			default: {
+				ulong raddr;
+				ret = do_shmat (first, ptr, second, &raddr);
+				if (ret)
+					return ret;
+				return put_user (raddr, (ulong __user *) third);
+			}
+			}
+		case SHMDT:
+			return sys_shmdt (ptr);
+		case SHMGET:
+			return sys_shmget (first, second, third);
+		case SHMCTL:
+			return sys_shmctl (first, second, ptr);
+		default:
+			return -ENOSYS;
+		}
 
 	return -EINVAL;
 }
@@ -206,3 +228,17 @@ asmlinkage int sys_getpagesize(void)
 	return PAGE_SIZE;
 }
 
+/*
+ * 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 __res asm ("%d0") = __NR_execve;
+	register long __a asm ("%d1") = (long)(filename);
+	register long __b asm ("%d2") = (long)(argv);
+	register long __c asm ("%d3") = (long)(envp);
+	asm volatile ("trap  #0" : "+d" (__res)
+			: "d" (__a), "d" (__b), "d" (__c));
+	return __res;
+}