EFAULT - update __get_user() __put_user(), by Thayne Harbaugh.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3508 c046a42c-6fe2-441c-8c8c-71466251a162

diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index bcc0b34..d0f650e 100644 (file)
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -206,22 +206,22 @@ int target_msync(abi_ulong start, abi_ulong len, int flags);
 #define access_ok(type,addr,size) \
     (page_check_range((target_ulong)addr,size,(type==VERIFY_READ)?PAGE_READ:PAGE_WRITE)==0)
 
-/* NOTE get_user and put_user use host addresses.  */
-#define __put_user(x,ptr)\
+/* NOTE __get_user and __put_user use host pointers and don't check access. */
+#define __put_user(x, hptr)\
 ({\
-    int size = sizeof(*ptr);\
+    int size = sizeof(*hptr);\
     switch(size) {\
     case 1:\
-        *(uint8_t *)(ptr) = (typeof(*ptr))(x);\
+        *(uint8_t *)(hptr) = (typeof(*hptr))(x);\
         break;\
     case 2:\
-        *(uint16_t *)(ptr) = tswap16((typeof(*ptr))(x));\
+        *(uint16_t *)(hptr) = tswap16((typeof(*hptr))(x));\
         break;\
     case 4:\
-        *(uint32_t *)(ptr) = tswap32((typeof(*ptr))(x));\
+        *(uint32_t *)(hptr) = tswap32((typeof(*hptr))(x));\
         break;\
     case 8:\
-        *(uint64_t *)(ptr) = tswap64((typeof(*ptr))(x));\
+        *(uint64_t *)(hptr) = tswap64((typeof(*hptr))(x));\
         break;\
     default:\
         abort();\
@@ -229,21 +229,21 @@ int target_msync(abi_ulong start, abi_ulong len, int flags);
     0;\
 })
 
-#define __get_user(x, ptr) \
+#define __get_user(x, hptr) \
 ({\
-    int size = sizeof(*ptr);\
+    int size = sizeof(*hptr);\
     switch(size) {\
     case 1:\
-        x = (typeof(*ptr))*(uint8_t *)(ptr);\
+        x = (typeof(*hptr))*(uint8_t *)(hptr);\
         break;\
     case 2:\
-        x = (typeof(*ptr))tswap16(*(uint16_t *)(ptr));\
+        x = (typeof(*hptr))tswap16(*(uint16_t *)(hptr));\
         break;\
     case 4:\
-        x = (typeof(*ptr))tswap32(*(uint32_t *)(ptr));\
+        x = (typeof(*hptr))tswap32(*(uint32_t *)(hptr));\
         break;\
     case 8:\
-        x = (typeof(*ptr))tswap64(*(uint64_t *)(ptr));\
+        x = (typeof(*hptr))tswap64(*(uint64_t *)(hptr));\
         break;\
     default:\
         abort();\