From c1db8b0ddfc46134b903ff3803e9aea1cf9e55d9 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 31 Mar 2000 20:44:49 +0000 Subject: 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 --- iconv/gconv_simple.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 93 insertions(+) (limited to 'iconv/gconv_simple.c') 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 @@ -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 -- cgit v1.2.3