This module uses the Z9-109 variants of the Convert Unicode
instructions.
- Copyright (C) 1997-2009 Free Software Foundation, Inc.
+ Copyright (C) 1997-2016 Free Software Foundation, Inc.
Author: Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
Based on the work by Ulrich Drepper <drepper@cygnus.com>, 1997.
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#include <dlfcn.h>
#include <stdint.h>
#define FROM_LOOP from_utf8_loop
#define TO_LOOP to_utf8_loop
#define FROM_DIRECTION (dir == from_utf8)
+#define ONE_DIRECTION 0
#define PREPARE_LOOP \
enum direction dir = ((struct utf8_data *) step->__data)->dir; \
int emit_bom = ((struct utf8_data *) step->__data)->emit_bom; \
&& data->__invocation_counter == 0) \
{ \
/* Emit the Byte Order Mark. */ \
- if (__builtin_expect (outbuf + 4 > outend, 0)) \
+ if (__glibc_unlikely (outbuf + 4 > outend)) \
return __GCONV_FULL_OUTPUT; \
\
put32u (outbuf, BOM); \
directions. */
#define HARDWARE_CONVERT(INSTRUCTION) \
{ \
- register const unsigned char* pInput asm ("8") = inptr; \
- register unsigned long long inlen asm ("9") = inend - inptr; \
- register unsigned char* pOutput asm ("10") = outptr; \
- register unsigned long long outlen asm("11") = outend - outptr; \
+ register const unsigned char* pInput __asm__ ("8") = inptr; \
+ register unsigned long long inlen __asm__ ("9") = inend - inptr; \
+ register unsigned char* pOutput __asm__ ("10") = outptr; \
+ register unsigned long long outlen __asm__("11") = outend - outptr; \
uint64_t cc = 0; \
\
- asm volatile ("0: " INSTRUCTION " \n\t" \
- " jo 0b \n\t" \
- " ipm %2 \n" \
- : "+a" (pOutput), "+a" (pInput), "+d" (cc), \
- "+d" (outlen), "+d" (inlen) \
- : \
- : "cc", "memory"); \
+ __asm__ volatile (".machine push \n\t" \
+ ".machine \"z9-109\" \n\t" \
+ "0: " INSTRUCTION " \n\t" \
+ ".machine pop \n\t" \
+ " jo 0b \n\t" \
+ " ipm %2 \n" \
+ : "+a" (pOutput), "+a" (pInput), "+d" (cc), \
+ "+d" (outlen), "+d" (inlen) \
+ : \
+ : "cc", "memory"); \
\
inptr = pInput; \
outptr = pOutput; \
if ((inptr[i] & 0xc0) != 0x80) \
break; \
\
- if (__builtin_expect (inptr + i == inend, 1)) \
+ if (__glibc_likely (inptr + i == inend)) \
{ \
result = __GCONV_INCOMPLETE_INPUT; \
break; \
/* Next input byte. */ \
uint32_t ch = *inptr; \
\
- if (__builtin_expect (ch < 0x80, 1)) \
+ if (__glibc_likely (ch < 0x80)) \
{ \
/* One byte sequence. */ \
++inptr; \
cnt = 2; \
ch &= 0x1f; \
} \
- else if (__builtin_expect ((ch & 0xf0) == 0xe0, 1)) \
+ else if (__glibc_likely ((ch & 0xf0) == 0xe0)) \
{ \
/* We expect three bytes. */ \
cnt = 3; \
ch &= 0x0f; \
} \
- else if (__builtin_expect ((ch & 0xf8) == 0xf0, 1)) \
+ else if (__glibc_likely ((ch & 0xf8) == 0xf0)) \
{ \
/* We expect four bytes. */ \
cnt = 4; \
ch &= 0x07; \
} \
- else if (__builtin_expect ((ch & 0xfc) == 0xf8, 1)) \
+ else if (__glibc_likely ((ch & 0xfc) == 0xf8)) \
{ \
/* We expect five bytes. */ \
cnt = 5; \
ch &= 0x03; \
} \
- else if (__builtin_expect ((ch & 0xfe) == 0xfc, 1)) \
+ else if (__glibc_likely ((ch & 0xfe) == 0xfc)) \
{ \
/* We expect six bytes. */ \
cnt = 6; \
STANDARD_FROM_LOOP_ERR_HANDLER (i); \
} \
\
- if (__builtin_expect (inptr + cnt > inend, 0)) \
+ if (__glibc_unlikely (inptr + cnt > inend)) \
{ \
/* We don't have enough input. But before we report \
that check that all the bytes are correct. */ \
if ((inptr[i] & 0xc0) != 0x80) \
break; \
\
- if (__builtin_expect (inptr + i == inend, 1)) \
+ if (__glibc_likely (inptr + i == inend)) \
{ \
result = __GCONV_INCOMPLETE_INPUT; \
break; \
cnt = 2; \
ch &= 0x1f; \
} \
- else if (__builtin_expect ((ch & 0xf0) == 0xe0, 1)) \
+ else if (__glibc_likely ((ch & 0xf0) == 0xe0)) \
{ \
/* We expect three bytes. */ \
cnt = 3; \
ch &= 0x0f; \
} \
- else if (__builtin_expect ((ch & 0xf8) == 0xf0, 1)) \
+ else if (__glibc_likely ((ch & 0xf8) == 0xf0)) \
{ \
/* We expect four bytes. */ \
cnt = 4; \
ch &= 0x07; \
} \
- else if (__builtin_expect ((ch & 0xfc) == 0xf8, 1)) \
+ else if (__glibc_likely ((ch & 0xfc) == 0xf8)) \
{ \
/* We expect five bytes. */ \
cnt = 5; \
\
uint32_t wc = *((const uint32_t *) inptr); \
\
- if (__builtin_expect (wc <= 0x7f, 1)) \
+ if (__glibc_likely (wc <= 0x7f)) \
{ \
/* Single UTF-8 char. */ \
*outptr = (uint8_t)wc; \
else if (wc <= 0x7ff) \
{ \
/* Two UTF-8 chars. */ \
- if (__builtin_expect (outptr + 2 > outend, 0)) \
+ if (__glibc_unlikely (outptr + 2 > outend)) \
{ \
/* Overflow in the output buffer. */ \
result = __GCONV_FULL_OUTPUT; \
else if (wc <= 0xffff) \
{ \
/* Three UTF-8 chars. */ \
- if (__builtin_expect (outptr + 3 > outend, 0)) \
+ if (__glibc_unlikely (outptr + 3 > outend)) \
{ \
/* Overflow in the output buffer. */ \
result = __GCONV_FULL_OUTPUT; \
else if (wc <= 0x10ffff) \
{ \
/* Four UTF-8 chars. */ \
- if (__builtin_expect (outptr + 4 > outend, 0)) \
+ if (__glibc_unlikely (outptr + 4 > outend)) \
{ \
/* Overflow in the output buffer. */ \
result = __GCONV_FULL_OUTPUT; \
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