bsd-user: style tweak: Use preferred block comments

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>

bsd-user/qemu.h

@@ -47,9 +47,10 @@ extern enum BSDType bsd_type;
 #define THREAD
 #endif
 
-/* This struct is used to hold certain information about the image.
- * Basically, it replicates in user space what would be certain
- * task_struct fields in the kernel
+/*
+ * This struct is used to hold certain information about the image.  Basically,
+ * it replicates in user space what would be certain task_struct fields in the
+ * kernel
  */
 struct image_info {
     abi_ulong load_addr;
@@ -78,12 +79,13 @@ struct sigqueue {
 struct emulated_sigtable {
     int pending; /* true if signal is pending */
     struct sigqueue *first;
-    struct sigqueue info; /* in order to always have memory for the
-                             first signal, we put it here */
+    /* in order to always have memory for the first signal, we put it here */
+    struct sigqueue info;
 };
 
-/* NOTE: we force a big alignment so that the stack stored after is
-   aligned too */
+/*
+ * NOTE: we force a big alignment so that the stack stored after is aligned too
+ */
 typedef struct TaskState {
     pid_t ts_tid;     /* tid (or pid) of this task */
 
@@ -103,7 +105,6 @@ void init_task_state(TaskState *ts);
 extern const char *qemu_uname_release;
 extern unsigned long mmap_min_addr;
 
-/* ??? See if we can avoid exposing so much of the loader internals.  */
 /*
  * MAX_ARG_PAGES defines the number of pages allocated for arguments
  * and envelope for the new program. 32 should suffice, this gives
@@ -224,9 +225,11 @@ static inline bool access_ok(int type, abi_ulong addr, abi_ulong size)
     return page_check_range((target_ulong)addr, size, type) == 0;
 }
 
-/* NOTE __get_user and __put_user use host pointers and don't check access. */
-/* These are usually used to access struct data members once the
- * struct has been locked - usually with lock_user_struct().
+/*
+ * NOTE __get_user and __put_user use host pointers and don't check access.
+ *
+ * These are usually used to access struct data members once the struct has been
+ * locked - usually with lock_user_struct().
  */
 #define __put_user(x, hptr)\
 ({\
@@ -267,17 +270,18 @@ static inline bool access_ok(int type, abi_ulong addr, abi_ulong size)
         x = (typeof(*hptr))tswap64(*(uint64_t *)(hptr));\
         break;\
     default:\
-        /* avoid warning */\
         x = 0;\
         abort();\
     } \
     0;\
 })
 
-/* put_user()/get_user() take a guest address and check access */
-/* These are usually used to access an atomic data type, such as an int,
- * that has been passed by address.  These internally perform locking
- * and unlocking on the data type.
+/*
+ * put_user()/get_user() take a guest address and check access
+ *
+ * These are usually used to access an atomic data type, such as an int, that
+ * has been passed by address.  These internally perform locking and unlocking
+ * on the data type.
  */
 #define put_user(x, gaddr, target_type)                                 \
 ({                                                                      \
@@ -301,7 +305,6 @@ static inline bool access_ok(int type, abi_ulong addr, abi_ulong size)
         __ret = __get_user((x), __hptr);                                \
         unlock_user(__hptr, __gaddr, 0);                                \
     } else {                                                            \
-        /* avoid warning */                                             \
         (x) = 0;                                                        \
         __ret = -TARGET_EFAULT;                                         \
     }                                                                   \
@@ -330,22 +333,28 @@ static inline bool access_ok(int type, abi_ulong addr, abi_ulong size)
 #define get_user_u8(x, gaddr)  get_user((x), (gaddr), uint8_t)
 #define get_user_s8(x, gaddr)  get_user((x), (gaddr), int8_t)
 
-/* copy_from_user() and copy_to_user() are usually used to copy data
+/*
+ * copy_from_user() and copy_to_user() are usually used to copy data
  * buffers between the target and host.  These internally perform
  * locking/unlocking of the memory.
  */
 abi_long copy_from_user(void *hptr, abi_ulong gaddr, size_t len);
 abi_long copy_to_user(abi_ulong gaddr, void *hptr, size_t len);
 
-/* Functions for accessing guest memory.  The tget and tput functions
-   read/write single values, byteswapping as necessary.  The lock_user function
-   gets a pointer to a contiguous area of guest memory, but does not perform
-   any byteswapping.  lock_user may return either a pointer to the guest
-   memory, or a temporary buffer.  */
+/*
+ * Functions for accessing guest memory.  The tget and tput functions
+ * read/write single values, byteswapping as necessary.  The lock_user function
+ * gets a pointer to a contiguous area of guest memory, but does not perform
+ * any byteswapping.  lock_user may return either a pointer to the guest
+ * memory, or a temporary buffer.
+ */
 
-/* Lock an area of guest memory into the host.  If copy is true then the
-   host area will have the same contents as the guest.  */
-static inline void *lock_user(int type, abi_ulong guest_addr, long len, int copy)
+/*
+ * Lock an area of guest memory into the host.  If copy is true then the
+ * host area will have the same contents as the guest.
+ */
+static inline void *lock_user(int type, abi_ulong guest_addr, long len,
+                              int copy)
 {
     if (!access_ok(type, guest_addr, len))
         return NULL;
@@ -364,9 +373,10 @@ static inline void *lock_user(int type, abi_ulong guest_addr, long len, int copy
 #endif
 }
 
-/* Unlock an area of guest memory.  The first LEN bytes must be
-   flushed back to guest memory. host_ptr = NULL is explicitly
-   allowed and does nothing. */
+/*
+ * Unlock an area of guest memory.  The first LEN bytes must be flushed back to
+ * guest memory. host_ptr = NULL is explicitly allowed and does nothing.
+ */
 static inline void unlock_user(void *host_ptr, abi_ulong guest_addr,
                                long len)
 {
@@ -382,8 +392,10 @@ static inline void unlock_user(void *host_ptr, abi_ulong guest_addr,
 #endif
 }
 
-/* Return the length of a string in target memory or -TARGET_EFAULT if
-   access error. */
+/*
+ * Return the length of a string in target memory or -TARGET_EFAULT if access
+ * error.
+ */
 abi_long target_strlen(abi_ulong gaddr);
 
 /* Like lock_user but for null terminated strings.  */