diff options
Diffstat (limited to 'iconv')
| -rw-r--r-- | iconv/gconv_simple.c | 93 | ||||
| -rw-r--r-- | iconv/skeleton.c | 28 |
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) |