Update.

	* iconv/skeleton.c: Define access macros with u suffix.  Adjust
	#if expression for use of unaligned function to the one used in
	the definition of these functions.
	* iconv/gconv_simple.c (internal_ucs4_loop_unaligned): New function.
	(internal_ucs4le_loop_unaligned): New function.

	    Ralf Baechle <ralf@uni-koblenz.de>

2 files changed, 108 insertions, 13 deletions

diff --git a/iconv/gconv_simple.c b/iconv/gconv_simple.c
index 3cf0589240..9710eb1707 100644
--- a/iconv/gconv_simple.c
+++ b/iconv/gconv_simple.c
@@ -99,6 +99,52 @@ internal_ucs4_loop (const unsigned char **inptrp, const unsigned char *inend,
   return result;
 }
 
+#ifndef _STRING_ARCH_unaligned
+static inline int
+internal_ucs4_loop_unaligned (const unsigned char **inptrp,
+			      const unsigned char *inend,
+			      unsigned char **outptrp, unsigned char *outend,
+			      mbstate_t *state, void *data, size_t *converted)
+{
+  const unsigned char *inptr = *inptrp;
+  unsigned char *outptr = *outptrp;
+  size_t n_convert = MIN (inend - inptr, outend - outptr) / 4;
+  int result;
+
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+  /* Sigh, we have to do some real work.  */
+  size_t cnt;
+
+  for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4, outptr += 4)
+    {
+      outptr[0] = inptr[3];
+      outptr[1] = inptr[2];
+      outptr[2] = inptr[1];
+      outptr[3] = inptr[0];
+    }
+
+  *inptrp = inptr;
+  *outptrp = outptr;
+# elif __BYTE_ORDER == __BIG_ENDIAN
+  /* Simply copy the data.  */
+  *inptrp = inptr + n_convert * 4;
+  *outptrp = __mempcpy (outptr, inptr, n_convert * 4);
+# else
+#  error "This endianess is not supported."
+# endif
+
+  /* Determine the status.  */
+  if (*outptrp == outend)
+    result = __GCONV_FULL_OUTPUT;
+  else if (*inptrp == inend)
+    result = __GCONV_EMPTY_INPUT;
+  else
+    result = __GCONV_INCOMPLETE_INPUT;
+
+  return result;
+}
+#endif
+
 #include <iconv/skeleton.c>
 
 
@@ -151,6 +197,53 @@ internal_ucs4le_loop (const unsigned char **inptrp, const unsigned char *inend,
   return result;
 }
 
+#ifndef _STRING_ARCH_unaligned
+static inline int
+internal_ucs4le_loop_unaligned (const unsigned char **inptrp,
+				const unsigned char *inend,
+				unsigned char **outptrp, unsigned char *outend,
+				mbstate_t *state, void *data,
+				size_t *converted)
+{
+  const unsigned char *inptr = *inptrp;
+  unsigned char *outptr = *outptrp;
+  size_t n_convert = MIN (inend - inptr, outend - outptr) / 4;
+  int result;
+
+# if __BYTE_ORDER == __BIG_ENDIAN
+  /* Sigh, we have to do some real work.  */
+  size_t cnt;
+
+  for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4)
+    {
+      outptr[0] = inptr[3];
+      outptr[1] = inptr[2];
+      outptr[2] = inptr[1];
+      outptr[3] = inptr[0];
+    }
+
+  *inptrp = inptr;
+  *outptrp = outptr;
+# elif __BYTE_ORDER == __LITTLE_ENDIAN
+  /* Simply copy the data.  */
+  *inptrp = inptr + n_convert * 4;
+  *outptrp = __mempcpy (outptr, inptr, n_convert * 4);
+# else
+#  error "This endianess is not supported."
+# endif
+
+  /* Determine the status.  */
+  if (*outptrp == outend)
+    result = __GCONV_FULL_OUTPUT;
+  else if (*inptrp == inend)
+    result = __GCONV_EMPTY_INPUT;
+  else
+    result = __GCONV_INCOMPLETE_INPUT;
+
+  return result;
+}
+#endif
+
 #include <iconv/skeleton.c>
 
 
diff --git a/iconv/skeleton.c b/iconv/skeleton.c
index 9554aac2f5..a7709eaca0 100644
--- a/iconv/skeleton.c
+++ b/iconv/skeleton.c
@@ -122,30 +122,30 @@ static int to_object;
    loops we have other definitions which allow optimized access.  */
 #ifdef _STRING_ARCH_unaligned
 /* We can handle unaligned memory access.  */
-# define get16(addr) *((uint16_t *) (addr))
-# define get32(addr) *((uint32_t *) (addr))
+# define get16u(addr) *((uint16_t *) (addr))
+# define get32u(addr) *((uint32_t *) (addr))
 
 /* We need no special support for writing values either.  */
-# define put16(addr, val) *((uint16_t *) (addr)) = (val)
-# define put32(addr, val) *((uint32_t *) (addr)) = (val)
+# define put16u(addr, val) *((uint16_t *) (addr)) = (val)
+# define put32u(addr, val) *((uint32_t *) (addr)) = (val)
 #else
 /* Distinguish between big endian and little endian.  */
 # if __BYTE_ORDER == __LITTLE_ENDIAN
-#  define get16(addr) \
+#  define get16u(addr) \
      (((__const unsigned char *) (addr))[1] << 8			      \
       | ((__const unsigned char *) (addr))[0])
-#  define get32(addr) \
+#  define get32u(addr) \
      (((((__const unsigned char *) (addr))[3] << 8			      \
 	| ((__const unsigned char *) (addr))[2]) << 8			      \
        | ((__const unsigned char *) (addr))[1]) << 8			      \
       | ((__const unsigned char *) (addr))[0])
 
-#  define put16(addr, val) \
+#  define put16u(addr, val) \
      ({ uint16_t __val = (val);						      \
 	((unsigned char *) (addr))[0] = __val;				      \
 	((unsigned char *) (addr))[1] = __val >> 8;			      \
 	(void) 0; })
-#  define put32(addr, val) \
+#  define put32u(addr, val) \
      ({ uint32_t __val = (val);						      \
 	((unsigned char *) (addr))[0] = __val;				      \
 	__val >>= 8;							      \
@@ -156,21 +156,21 @@ static int to_object;
 	((unsigned char *) (addr))[3] = __val;				      \
 	(void) 0; })
 # else
-#  define get16(addr) \
+#  define get16u(addr) \
      (((__const unsigned char *) (addr))[0] << 8			      \
       | ((__const unsigned char *) (addr))[1])
-#  define get32(addr) \
+#  define get32u(addr) \
      (((((__const unsigned char *) (addr))[0] << 8			      \
 	| ((__const unsigned char *) (addr))[1]) << 8			      \
        | ((__const unsigned char *) (addr))[2]) << 8			      \
       | ((__const unsigned char *) (addr))[3])
 
-#  define put16(addr, val) \
+#  define put16u(addr, val) \
      ({ uint16_t __val = (val);						      \
 	((unsigned char *) (addr))[1] = __val;				      \
 	((unsigned char *) (addr))[2] = __val >> 8;			      \
 	(void) 0; })
-#  define put32(addr, val) \
+#  define put32u(addr, val) \
      ({ uint32_t __val = (val);						      \
 	((unsigned char *) (addr))[3] = __val;				      \
 	__val >>= 8;							      \
@@ -351,7 +351,9 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
 				  data->__statep, step->__data, &converted
 				  EXTRA_LOOP_ARGS);
 	    }
-#ifndef _STRING_ARCH_unaligned
+#if !defined _STRING_ARCH_unaligned \
+    && MIN_NEEDED_FROM != 1 && MAX_NEEDED_FROM % MIN_NEEDED_FROM == 0 \
+    && MIN_NEEDED_TO != 1 && MAX_NEEDED_TO % MIN_NEEDED_TO == 0
 	  else
 	    {
 	      if (FROM_DIRECTION)