diff options
Diffstat (limited to 'sysdeps/s390/utf8-utf16-z9.c')
| -rw-r--r-- | sysdeps/s390/utf8-utf16-z9.c | 825 |
1 files changed, 0 insertions, 825 deletions
diff --git a/sysdeps/s390/utf8-utf16-z9.c b/sysdeps/s390/utf8-utf16-z9.c deleted file mode 100644 index 42163e7a19..0000000000 --- a/sysdeps/s390/utf8-utf16-z9.c +++ /dev/null @@ -1,825 +0,0 @@ -/* Conversion between UTF-8 and UTF-16 - s390 version. - - This module uses the Z9-109 variants of the Convert Unicode - instructions. - Copyright (C) 1997-2017 Free Software Foundation, Inc. - - Author: Andreas Krebbel <Andreas.Krebbel@de.ibm.com> - Based on the work by Ulrich Drepper <drepper@cygnus.com>, 1997. - - Thanks to Daniel Appich who covered the relevant performance work - in his diploma thesis. - - This is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - This is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - 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, see - <http://www.gnu.org/licenses/>. */ - -#include <dlfcn.h> -#include <stdint.h> -#include <unistd.h> -#include <gconv.h> -#include <string.h> - -/* Select which versions should be defined depending on support - for multiarch, vector and used minimum architecture level. */ -#ifdef HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT -# define HAVE_FROM_C 0 -# define FROM_LOOP_DEFAULT FROM_LOOP_CU -#else -# define HAVE_FROM_C 1 -# define FROM_LOOP_DEFAULT FROM_LOOP_C -#endif - -#define HAVE_TO_C 1 -#define TO_LOOP_DEFAULT TO_LOOP_C - -#if defined HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT || defined USE_MULTIARCH -# define HAVE_FROM_CU 1 -#else -# define HAVE_FROM_CU 0 -#endif - -#if defined HAVE_S390_VX_ASM_SUPPORT && defined USE_MULTIARCH -# define HAVE_FROM_VX 1 -# define HAVE_TO_VX 1 -#else -# define HAVE_FROM_VX 0 -# define HAVE_TO_VX 0 -#endif - -#if defined HAVE_S390_VX_GCC_SUPPORT -# define ASM_CLOBBER_VR(NR) , NR -#else -# define ASM_CLOBBER_VR(NR) -#endif - -#if defined __s390x__ -# define CONVERT_32BIT_SIZE_T(REG) -#else -# define CONVERT_32BIT_SIZE_T(REG) "llgfr %" #REG ",%" #REG "\n\t" -#endif - -/* Defines for skeleton.c. */ -#define DEFINE_INIT 0 -#define DEFINE_FINI 0 -#define MIN_NEEDED_FROM 1 -#define MAX_NEEDED_FROM 4 -#define MIN_NEEDED_TO 2 -#define MAX_NEEDED_TO 4 -#define FROM_LOOP FROM_LOOP_DEFAULT -#define TO_LOOP TO_LOOP_DEFAULT -#define FROM_DIRECTION (dir == from_utf8) -#define ONE_DIRECTION 0 - - -/* UTF-16 big endian byte order mark. */ -#define BOM_UTF16 0xfeff - -/* Direction of the transformation. */ -enum direction -{ - illegal_dir, - to_utf8, - from_utf8 -}; - -struct utf8_data -{ - enum direction dir; - int emit_bom; -}; - - -extern int gconv_init (struct __gconv_step *step); -int -gconv_init (struct __gconv_step *step) -{ - /* Determine which direction. */ - struct utf8_data *new_data; - enum direction dir = illegal_dir; - int emit_bom; - int result; - - emit_bom = (__strcasecmp (step->__to_name, "UTF-16//") == 0); - - if (__strcasecmp (step->__from_name, "ISO-10646/UTF8/") == 0 - && (__strcasecmp (step->__to_name, "UTF-16//") == 0 - || __strcasecmp (step->__to_name, "UTF-16BE//") == 0)) - { - dir = from_utf8; - } - else if (__strcasecmp (step->__from_name, "UTF-16BE//") == 0 - && __strcasecmp (step->__to_name, "ISO-10646/UTF8/") == 0) - { - dir = to_utf8; - } - - result = __GCONV_NOCONV; - if (dir != illegal_dir) - { - new_data = (struct utf8_data *) malloc (sizeof (struct utf8_data)); - - result = __GCONV_NOMEM; - if (new_data != NULL) - { - new_data->dir = dir; - new_data->emit_bom = emit_bom; - step->__data = new_data; - - if (dir == from_utf8) - { - step->__min_needed_from = MIN_NEEDED_FROM; - step->__max_needed_from = MIN_NEEDED_FROM; - step->__min_needed_to = MIN_NEEDED_TO; - step->__max_needed_to = MIN_NEEDED_TO; - } - else - { - step->__min_needed_from = MIN_NEEDED_TO; - step->__max_needed_from = MIN_NEEDED_TO; - step->__min_needed_to = MIN_NEEDED_FROM; - step->__max_needed_to = MIN_NEEDED_FROM; - } - - step->__stateful = 0; - - result = __GCONV_OK; - } - } - - return result; -} - - -extern void gconv_end (struct __gconv_step *data); -void -gconv_end (struct __gconv_step *data) -{ - free (data->__data); -} - -/* The macro for the hardware loop. This is used for both - directions. */ -#define HARDWARE_CONVERT(INSTRUCTION) \ - { \ - register const unsigned char* pInput __asm__ ("8") = inptr; \ - register size_t inlen __asm__ ("9") = inend - inptr; \ - register unsigned char* pOutput __asm__ ("10") = outptr; \ - register size_t outlen __asm__("11") = outend - outptr; \ - unsigned long cc = 0; \ - \ - __asm__ __volatile__ (".machine push \n\t" \ - ".machine \"z9-109\" \n\t" \ - ".machinemode \"zarch_nohighgprs\"\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; \ - cc >>= 28; \ - \ - if (cc == 1) \ - { \ - result = __GCONV_FULL_OUTPUT; \ - } \ - else if (cc == 2) \ - { \ - result = __GCONV_ILLEGAL_INPUT; \ - } \ - } - -#define PREPARE_LOOP \ - enum direction dir = ((struct utf8_data *) step->__data)->dir; \ - int emit_bom = ((struct utf8_data *) step->__data)->emit_bom; \ - \ - if (emit_bom && !data->__internal_use \ - && data->__invocation_counter == 0) \ - { \ - /* Emit the UTF-16 Byte Order Mark. */ \ - if (__glibc_unlikely (outbuf + 2 > outend)) \ - return __GCONV_FULL_OUTPUT; \ - \ - put16u (outbuf, BOM_UTF16); \ - outbuf += 2; \ - } - -/* Conversion function from UTF-8 to UTF-16. */ -#define BODY_FROM_HW(ASM) \ - { \ - ASM; \ - if (__glibc_likely (inptr == inend) \ - || result == __GCONV_FULL_OUTPUT) \ - break; \ - \ - int i; \ - for (i = 1; inptr + i < inend && i < 5; ++i) \ - if ((inptr[i] & 0xc0) != 0x80) \ - break; \ - \ - if (__glibc_likely (inptr + i == inend \ - && result == __GCONV_EMPTY_INPUT)) \ - { \ - result = __GCONV_INCOMPLETE_INPUT; \ - break; \ - } \ - STANDARD_FROM_LOOP_ERR_HANDLER (i); \ - } - -#if HAVE_FROM_VX == 1 -# define HW_FROM_VX \ - { \ - register const unsigned char* pInput asm ("8") = inptr; \ - register size_t inlen asm ("9") = inend - inptr; \ - register unsigned char* pOutput asm ("10") = outptr; \ - register size_t outlen asm("11") = outend - outptr; \ - unsigned long tmp, tmp2, tmp3; \ - asm volatile (".machine push\n\t" \ - ".machine \"z13\"\n\t" \ - ".machinemode \"zarch_nohighgprs\"\n\t" \ - " vrepib %%v30,0x7f\n\t" /* For compare > 0x7f. */ \ - " vrepib %%v31,0x20\n\t" \ - CONVERT_32BIT_SIZE_T ([R_INLEN]) \ - CONVERT_32BIT_SIZE_T ([R_OUTLEN]) \ - /* Loop which handles UTF-8 chars <=0x7f. */ \ - "0: clgijl %[R_INLEN],16,20f\n\t" \ - " clgijl %[R_OUTLEN],32,20f\n\t" \ - "1: vl %%v16,0(%[R_IN])\n\t" \ - " vstrcbs %%v17,%%v16,%%v30,%%v31\n\t" \ - " jno 10f\n\t" /* Jump away if not all bytes are 1byte \ - UTF8 chars. */ \ - /* Enlarge to UTF-16. */ \ - " vuplhb %%v18,%%v16\n\t" \ - " la %[R_IN],16(%[R_IN])\n\t" \ - " vupllb %%v19,%%v16\n\t" \ - " aghi %[R_INLEN],-16\n\t" \ - /* Store 32 bytes to buf_out. */ \ - " vstm %%v18,%%v19,0(%[R_OUT])\n\t" \ - " aghi %[R_OUTLEN],-32\n\t" \ - " la %[R_OUT],32(%[R_OUT])\n\t" \ - " clgijl %[R_INLEN],16,20f\n\t" \ - " clgijl %[R_OUTLEN],32,20f\n\t" \ - " j 1b\n\t" \ - "10:\n\t" \ - /* At least one byte is > 0x7f. \ - Store the preceding 1-byte chars. */ \ - " vlgvb %[R_TMP],%%v17,7\n\t" \ - " sllk %[R_TMP2],%[R_TMP],1\n\t" /* Compute highest \ - index to store. */ \ - " llgfr %[R_TMP3],%[R_TMP2]\n\t" \ - " ahi %[R_TMP2],-1\n\t" \ - " jl 20f\n\t" \ - " vuplhb %%v18,%%v16\n\t" \ - " vstl %%v18,%[R_TMP2],0(%[R_OUT])\n\t" \ - " ahi %[R_TMP2],-16\n\t" \ - " jl 11f\n\t" \ - " vupllb %%v19,%%v16\n\t" \ - " vstl %%v19,%[R_TMP2],16(%[R_OUT])\n\t" \ - "11: \n\t" /* Update pointers. */ \ - " la %[R_IN],0(%[R_TMP],%[R_IN])\n\t" \ - " slgr %[R_INLEN],%[R_TMP]\n\t" \ - " la %[R_OUT],0(%[R_TMP3],%[R_OUT])\n\t" \ - " slgr %[R_OUTLEN],%[R_TMP3]\n\t" \ - /* Handle multibyte utf8-char with convert instruction. */ \ - "20: cu12 %[R_OUT],%[R_IN],1\n\t" \ - " jo 0b\n\t" /* Try vector implemenation again. */ \ - " lochil %[R_RES],%[RES_OUT_FULL]\n\t" /* cc == 1. */ \ - " lochih %[R_RES],%[RES_IN_ILL]\n\t" /* cc == 2. */ \ - ".machine pop" \ - : /* outputs */ [R_IN] "+a" (pInput) \ - , [R_INLEN] "+d" (inlen), [R_OUT] "+a" (pOutput) \ - , [R_OUTLEN] "+d" (outlen), [R_TMP] "=a" (tmp) \ - , [R_TMP2] "=d" (tmp2), [R_TMP3] "=a" (tmp3) \ - , [R_RES] "+d" (result) \ - : /* inputs */ \ - [RES_OUT_FULL] "i" (__GCONV_FULL_OUTPUT) \ - , [RES_IN_ILL] "i" (__GCONV_ILLEGAL_INPUT) \ - : /* clobber list */ "memory", "cc" \ - ASM_CLOBBER_VR ("v16") ASM_CLOBBER_VR ("v17") \ - ASM_CLOBBER_VR ("v18") ASM_CLOBBER_VR ("v19") \ - ASM_CLOBBER_VR ("v30") ASM_CLOBBER_VR ("v31") \ - ); \ - inptr = pInput; \ - outptr = pOutput; \ - } -# define BODY_FROM_VX BODY_FROM_HW (HW_FROM_VX) - -/* Generate loop-function with hardware vector and utf-convert instructions. */ -# define MIN_NEEDED_INPUT MIN_NEEDED_FROM -# define MAX_NEEDED_INPUT MAX_NEEDED_FROM -# define MIN_NEEDED_OUTPUT MIN_NEEDED_TO -# define MAX_NEEDED_OUTPUT MAX_NEEDED_TO -# define FROM_LOOP_VX __from_utf8_loop_vx -# define LOOPFCT FROM_LOOP_VX -# define LOOP_NEED_FLAGS -# define BODY BODY_FROM_VX -# include <iconv/loop.c> -#else -# define FROM_LOOP_VX NULL -#endif /* HAVE_FROM_VX != 1 */ - -#if HAVE_FROM_CU == 1 -# define BODY_FROM_ETF3EH BODY_FROM_HW (HARDWARE_CONVERT ("cu12 %0, %1, 1")) - -/* Generate loop-function with hardware utf-convert instruction. */ -# define MIN_NEEDED_INPUT MIN_NEEDED_FROM -# define MAX_NEEDED_INPUT MAX_NEEDED_FROM -# define MIN_NEEDED_OUTPUT MIN_NEEDED_TO -# define MAX_NEEDED_OUTPUT MAX_NEEDED_TO -# define FROM_LOOP_CU __from_utf8_loop_etf3eh -# define LOOPFCT FROM_LOOP_CU -# define LOOP_NEED_FLAGS -# define BODY BODY_FROM_ETF3EH -# include <iconv/loop.c> -#else -# define FROM_LOOP_CU NULL -#endif /* HAVE_FROM_CU != 1 */ - -#if HAVE_FROM_C == 1 -/* The software implementation is based on the code in gconv_simple.c. */ -# define BODY_FROM_C \ - { \ - /* Next input byte. */ \ - uint16_t ch = *inptr; \ - \ - if (__glibc_likely (ch < 0x80)) \ - { \ - /* One byte sequence. */ \ - ++inptr; \ - } \ - else \ - { \ - uint_fast32_t cnt; \ - uint_fast32_t i; \ - \ - if (ch >= 0xc2 && ch < 0xe0) \ - { \ - /* We expect two bytes. The first byte cannot be 0xc0 \ - or 0xc1, otherwise the wide character could have been \ - represented using a single byte. */ \ - cnt = 2; \ - ch &= 0x1f; \ - } \ - else if (__glibc_likely ((ch & 0xf0) == 0xe0)) \ - { \ - /* We expect three bytes. */ \ - cnt = 3; \ - ch &= 0x0f; \ - } \ - else if (__glibc_likely ((ch & 0xf8) == 0xf0)) \ - { \ - /* We expect four bytes. */ \ - cnt = 4; \ - ch &= 0x07; \ - } \ - else \ - { \ - /* Search the end of this ill-formed UTF-8 character. This \ - is the next byte with (x & 0xc0) != 0x80. */ \ - i = 0; \ - do \ - ++i; \ - while (inptr + i < inend \ - && (*(inptr + i) & 0xc0) == 0x80 \ - && i < 5); \ - \ - errout: \ - STANDARD_FROM_LOOP_ERR_HANDLER (i); \ - } \ - \ - if (__glibc_unlikely (inptr + cnt > inend)) \ - { \ - /* We don't have enough input. But before we report \ - that check that all the bytes are correct. */ \ - for (i = 1; inptr + i < inend; ++i) \ - if ((inptr[i] & 0xc0) != 0x80) \ - break; \ - \ - if (__glibc_likely (inptr + i == inend)) \ - { \ - result = __GCONV_INCOMPLETE_INPUT; \ - break; \ - } \ - \ - goto errout; \ - } \ - \ - if (cnt == 4) \ - { \ - /* For 4 byte UTF-8 chars two UTF-16 chars (high and \ - low) are needed. */ \ - uint16_t zabcd, high, low; \ - \ - if (__glibc_unlikely (outptr + 4 > outend)) \ - { \ - /* Overflow in the output buffer. */ \ - result = __GCONV_FULL_OUTPUT; \ - break; \ - } \ - \ - /* Check if tail-bytes >= 0x80, < 0xc0. */ \ - for (i = 1; i < cnt; ++i) \ - { \ - if ((inptr[i] & 0xc0) != 0x80) \ - /* This is an illegal encoding. */ \ - goto errout; \ - } \ - \ - /* See Principles of Operations cu12. */ \ - zabcd = (((inptr[0] & 0x7) << 2) | \ - ((inptr[1] & 0x30) >> 4)) - 1; \ - \ - /* z-bit must be zero after subtracting 1. */ \ - if (zabcd & 0x10) \ - STANDARD_FROM_LOOP_ERR_HANDLER (4) \ - \ - high = (uint16_t)(0xd8 << 8); /* high surrogate id */ \ - high |= zabcd << 6; /* abcd bits */ \ - high |= (inptr[1] & 0xf) << 2; /* efgh bits */ \ - high |= (inptr[2] & 0x30) >> 4; /* ij bits */ \ - \ - low = (uint16_t)(0xdc << 8); /* low surrogate id */ \ - low |= ((uint16_t)inptr[2] & 0xc) << 6; /* kl bits */ \ - low |= (inptr[2] & 0x3) << 6; /* mn bits */ \ - low |= inptr[3] & 0x3f; /* opqrst bits */ \ - \ - put16 (outptr, high); \ - outptr += 2; \ - put16 (outptr, low); \ - outptr += 2; \ - inptr += 4; \ - continue; \ - } \ - else \ - { \ - /* Read the possible remaining bytes. */ \ - for (i = 1; i < cnt; ++i) \ - { \ - uint16_t byte = inptr[i]; \ - \ - if ((byte & 0xc0) != 0x80) \ - /* This is an illegal encoding. */ \ - break; \ - \ - ch <<= 6; \ - ch |= byte & 0x3f; \ - } \ - \ - /* If i < cnt, some trail byte was not >= 0x80, < 0xc0. \ - If cnt > 2 and ch < 2^(5*cnt-4), the wide character ch could \ - have been represented with fewer than cnt bytes. */ \ - if (i < cnt || (cnt > 2 && (ch >> (5 * cnt - 4)) == 0) \ - /* Do not accept UTF-16 surrogates. */ \ - || (ch >= 0xd800 && ch <= 0xdfff)) \ - { \ - /* This is an illegal encoding. */ \ - goto errout; \ - } \ - \ - inptr += cnt; \ - } \ - } \ - /* Now adjust the pointers and store the result. */ \ - *((uint16_t *) outptr) = ch; \ - outptr += sizeof (uint16_t); \ - } - -/* Generate loop-function with software implementation. */ -# define MIN_NEEDED_INPUT MIN_NEEDED_FROM -# define MAX_NEEDED_INPUT MAX_NEEDED_FROM -# define MIN_NEEDED_OUTPUT MIN_NEEDED_TO -# define MAX_NEEDED_OUTPUT MAX_NEEDED_TO -# define FROM_LOOP_C __from_utf8_loop_c -# define LOOPFCT FROM_LOOP_C -# define LOOP_NEED_FLAGS -# define BODY BODY_FROM_C -# include <iconv/loop.c> -#else -# define FROM_LOOP_C NULL -#endif /* HAVE_FROM_C != 1 */ - -/* Conversion from UTF-16 to UTF-8. */ - -#if HAVE_TO_C == 1 -/* The software routine is based on the functionality of the S/390 - hardware instruction (cu21) as described in the Principles of - Operation. */ -# define BODY_TO_C \ - { \ - uint16_t c = get16 (inptr); \ - \ - if (__glibc_likely (c <= 0x007f)) \ - { \ - /* Single byte UTF-8 char. */ \ - *outptr = c & 0xff; \ - outptr++; \ - } \ - else if (c >= 0x0080 && c <= 0x07ff) \ - { \ - /* Two byte UTF-8 char. */ \ - \ - if (__glibc_unlikely (outptr + 2 > outend)) \ - { \ - /* Overflow in the output buffer. */ \ - result = __GCONV_FULL_OUTPUT; \ - break; \ - } \ - \ - outptr[0] = 0xc0; \ - outptr[0] |= c >> 6; \ - \ - outptr[1] = 0x80; \ - outptr[1] |= c & 0x3f; \ - \ - outptr += 2; \ - } \ - else if ((c >= 0x0800 && c <= 0xd7ff) || c > 0xdfff) \ - { \ - /* Three byte UTF-8 char. */ \ - \ - if (__glibc_unlikely (outptr + 3 > outend)) \ - { \ - /* Overflow in the output buffer. */ \ - result = __GCONV_FULL_OUTPUT; \ - break; \ - } \ - outptr[0] = 0xe0; \ - outptr[0] |= c >> 12; \ - \ - outptr[1] = 0x80; \ - outptr[1] |= (c >> 6) & 0x3f; \ - \ - outptr[2] = 0x80; \ - outptr[2] |= c & 0x3f; \ - \ - outptr += 3; \ - } \ - else if (c >= 0xd800 && c <= 0xdbff) \ - { \ - /* Four byte UTF-8 char. */ \ - uint16_t low, uvwxy; \ - \ - if (__glibc_unlikely (outptr + 4 > outend)) \ - { \ - /* Overflow in the output buffer. */ \ - result = __GCONV_FULL_OUTPUT; \ - break; \ - } \ - if (__glibc_unlikely (inptr + 4 > inend)) \ - { \ - result = __GCONV_INCOMPLETE_INPUT; \ - break; \ - } \ - \ - inptr += 2; \ - low = get16 (inptr); \ - \ - if ((low & 0xfc00) != 0xdc00) \ - { \ - inptr -= 2; \ - STANDARD_TO_LOOP_ERR_HANDLER (2); \ - } \ - uvwxy = ((c >> 6) & 0xf) + 1; \ - outptr[0] = 0xf0; \ - outptr[0] |= uvwxy >> 2; \ - \ - outptr[1] = 0x80; \ - outptr[1] |= (uvwxy << 4) & 0x30; \ - outptr[1] |= (c >> 2) & 0x0f; \ - \ - outptr[2] = 0x80; \ - outptr[2] |= (c & 0x03) << 4; \ - outptr[2] |= (low >> 6) & 0x0f; \ - \ - outptr[3] = 0x80; \ - outptr[3] |= low & 0x3f; \ - \ - outptr += 4; \ - } \ - else \ - { \ - STANDARD_TO_LOOP_ERR_HANDLER (2); \ - } \ - inptr += 2; \ - } - -/* Generate loop-function with software implementation. */ -# define MIN_NEEDED_INPUT MIN_NEEDED_TO -# define MAX_NEEDED_INPUT MAX_NEEDED_TO -# define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM -# define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM -# define TO_LOOP_C __to_utf8_loop_c -# define LOOPFCT TO_LOOP_C -# define BODY BODY_TO_C -# define LOOP_NEED_FLAGS -# include <iconv/loop.c> -#else -# define TO_LOOP_C NULL -#endif /* HAVE_TO_C != 1 */ - -#if HAVE_TO_VX == 1 -# define BODY_TO_VX \ - { \ - size_t inlen = inend - inptr; \ - size_t outlen = outend - outptr; \ - unsigned long tmp, tmp2, tmp3; \ - asm volatile (".machine push\n\t" \ - ".machine \"z13\"\n\t" \ - ".machinemode \"zarch_nohighgprs\"\n\t" \ - /* Setup to check for values <= 0x7f. */ \ - " larl %[R_TMP],9f\n\t" \ - " vlm %%v30,%%v31,0(%[R_TMP])\n\t" \ - CONVERT_32BIT_SIZE_T ([R_INLEN]) \ - CONVERT_32BIT_SIZE_T ([R_OUTLEN]) \ - /* Loop which handles UTF-16 chars <=0x7f. */ \ - "0: clgijl %[R_INLEN],32,2f\n\t" \ - " clgijl %[R_OUTLEN],16,2f\n\t" \ - "1: vlm %%v16,%%v17,0(%[R_IN])\n\t" \ - " lghi %[R_TMP2],0\n\t" \ - /* Check for > 1byte UTF-8 chars. */ \ - " vstrchs %%v19,%%v16,%%v30,%%v31\n\t" \ - " jno 10f\n\t" /* Jump away if not all bytes are 1byte \ - UTF8 chars. */ \ - " vstrchs %%v19,%%v17,%%v30,%%v31\n\t" \ - " jno 11f\n\t" /* Jump away if not all bytes are 1byte \ - UTF8 chars. */ \ - /* Shorten to UTF-8. */ \ - " vpkh %%v18,%%v16,%%v17\n\t" \ - " la %[R_IN],32(%[R_IN])\n\t" \ - " aghi %[R_INLEN],-32\n\t" \ - /* Store 16 bytes to buf_out. */ \ - " vst %%v18,0(%[R_OUT])\n\t" \ - " aghi %[R_OUTLEN],-16\n\t" \ - " la %[R_OUT],16(%[R_OUT])\n\t" \ - " clgijl %[R_INLEN],32,2f\n\t" \ - " clgijl %[R_OUTLEN],16,2f\n\t" \ - " j 1b\n\t" \ - /* Setup to check for ch > 0x7f. (v30, v31) */ \ - "9: .short 0x7f,0x7f,0x0,0x0,0x0,0x0,0x0,0x0\n\t" \ - " .short 0x2000,0x2000,0x0,0x0,0x0,0x0,0x0,0x0\n\t" \ - /* At least one byte is > 0x7f. \ - Store the preceding 1-byte chars. */ \ - "11: lghi %[R_TMP2],16\n\t" /* match was found in v17. */ \ - "10:\n\t" \ - " vlgvb %[R_TMP],%%v19,7\n\t" \ - /* Shorten to UTF-8. */ \ - " vpkh %%v18,%%v16,%%v17\n\t" \ - " ar %[R_TMP],%[R_TMP2]\n\t" /* Number of in bytes. */ \ - " srlg %[R_TMP3],%[R_TMP],1\n\t" /* Number of out bytes. */ \ - " ahik %[R_TMP2],%[R_TMP3],-1\n\t" /* Highest index to store. */ \ - " jl 13f\n\t" \ - " vstl %%v18,%[R_TMP2],0(%[R_OUT])\n\t" \ - /* Update pointers. */ \ - " la %[R_IN],0(%[R_TMP],%[R_IN])\n\t" \ - " slgr %[R_INLEN],%[R_TMP]\n\t" \ - " la %[R_OUT],0(%[R_TMP3],%[R_OUT])\n\t" \ - " slgr %[R_OUTLEN],%[R_TMP3]\n\t" \ - "13: \n\t" \ - /* Calculate remaining uint16_t values in loaded vrs. */ \ - " lghi %[R_TMP2],16\n\t" \ - " slgr %[R_TMP2],%[R_TMP3]\n\t" \ - " llh %[R_TMP],0(%[R_IN])\n\t" \ - " aghi %[R_INLEN],-2\n\t" \ - " j 22f\n\t" \ - /* Handle remaining bytes. */ \ - "2: \n\t" \ - /* Zero, one or more bytes available? */ \ - " clgfi %[R_INLEN],1\n\t" \ - " locghie %[R_RES],%[RES_IN_FULL]\n\t" /* Only one byte. */ \ - " jle 99f\n\t" /* End if less than two bytes. */ \ - /* Calculate remaining uint16_t values in inptr. */ \ - " srlg %[R_TMP2],%[R_INLEN],1\n\t" \ - /* Handle multibyte utf8-char. */ \ - "20: llh %[R_TMP],0(%[R_IN])\n\t" \ - " aghi %[R_INLEN],-2\n\t" \ - /* Test if ch is 1-byte UTF-8 char. */ \ - "21: clijh %[R_TMP],0x7f,22f\n\t" \ - /* Handle 1-byte UTF-8 char. */ \ - "31: slgfi %[R_OUTLEN],1\n\t" \ - " jl 90f \n\t" \ - " stc %[R_TMP],0(%[R_OUT])\n\t" \ - " la %[R_IN],2(%[R_IN])\n\t" \ - " la %[R_OUT],1(%[R_OUT])\n\t" \ - " brctg %[R_TMP2],20b\n\t" \ - " j 0b\n\t" /* Switch to vx-loop. */ \ - /* Test if ch is 2-byte UTF-8 char. */ \ - "22: clfi %[R_TMP],0x7ff\n\t" \ - " jh 23f\n\t" \ - /* Handle 2-byte UTF-8 char. */ \ - "32: slgfi %[R_OUTLEN],2\n\t" \ - " jl 90f \n\t" \ - " llill %[R_TMP3],0xc080\n\t" \ - " la %[R_IN],2(%[R_IN])\n\t" \ - " risbgn %[R_TMP3],%[R_TMP],51,55,2\n\t" /* 1. byte. */ \ - " risbgn %[R_TMP3],%[R_TMP],58,63,0\n\t" /* 2. byte. */ \ - " sth %[R_TMP3],0(%[R_OUT])\n\t" \ - " la %[R_OUT],2(%[R_OUT])\n\t" \ - " brctg %[R_TMP2],20b\n\t" \ - " j 0b\n\t" /* Switch to vx-loop. */ \ - /* Test if ch is 3-byte UTF-8 char. */ \ - "23: clfi %[R_TMP],0xd7ff\n\t" \ - " jh 24f\n\t" \ - /* Handle 3-byte UTF-8 char. */ \ - "33: slgfi %[R_OUTLEN],3\n\t" \ - " jl 90f \n\t" \ - " llilf %[R_TMP3],0xe08080\n\t" \ - " la %[R_IN],2(%[R_IN])\n\t" \ - " risbgn %[R_TMP3],%[R_TMP],44,47,4\n\t" /* 1. byte. */ \ - " risbgn %[R_TMP3],%[R_TMP],50,55,2\n\t" /* 2. byte. */ \ - " risbgn %[R_TMP3],%[R_TMP],58,63,0\n\t" /* 3. byte. */ \ - " stcm %[R_TMP3],7,0(%[R_OUT])\n\t" \ - " la %[R_OUT],3(%[R_OUT])\n\t" \ - " brctg %[R_TMP2],20b\n\t" \ - " j 0b\n\t" /* Switch to vx-loop. */ \ - /* Test if ch is 4-byte UTF-8 char. */ \ - "24: clfi %[R_TMP],0xdfff\n\t" \ - " jh 33b\n\t" /* Handle this 3-byte UTF-8 char. */ \ - " clfi %[R_TMP],0xdbff\n\t" \ - " locghih %[R_RES],%[RES_IN_ILL]\n\t" \ - " jh 99f\n\t" /* Jump away if this is a low surrogate \ - without a preceding high surrogate. */ \ - /* Handle 4-byte UTF-8 char. */ \ - "34: slgfi %[R_OUTLEN],4\n\t" \ - " jl 90f \n\t" \ - " slgfi %[R_INLEN],2\n\t" \ - " locghil %[R_RES],%[RES_IN_FULL]\n\t" \ - " jl 99f\n\t" /* Jump away if low surrogate is missing. */ \ - " llilf %[R_TMP3],0xf0808080\n\t" \ - " aghi %[R_TMP],0x40\n\t" \ - " risbgn %[R_TMP3],%[R_TMP],37,39,16\n\t" /* 1. byte: uvw */ \ - " risbgn %[R_TMP3],%[R_TMP],42,43,14\n\t" /* 2. byte: xy */ \ - " risbgn %[R_TMP3],%[R_TMP],44,47,14\n\t" /* 2. byte: efgh */ \ - " risbgn %[R_TMP3],%[R_TMP],50,51,12\n\t" /* 3. byte: ij */ \ - " llh %[R_TMP],2(%[R_IN])\n\t" /* Load low surrogate. */ \ - " risbgn %[R_TMP3],%[R_TMP],52,55,2\n\t" /* 3. byte: klmn */ \ - " risbgn %[R_TMP3],%[R_TMP],58,63,0\n\t" /* 4. byte: opqrst */ \ - " nilf %[R_TMP],0xfc00\n\t" \ - " clfi %[R_TMP],0xdc00\n\t" /* Check if it starts with 0xdc00. */ \ - " locghine %[R_RES],%[RES_IN_ILL]\n\t" \ - " jne 99f\n\t" /* Jump away if low surrogate is invalid. */ \ - " st %[R_TMP3],0(%[R_OUT])\n\t" \ - " la %[R_IN],4(%[R_IN])\n\t" \ - " la %[R_OUT],4(%[R_OUT])\n\t" \ - " aghi %[R_TMP2],-2\n\t" \ - " jh 20b\n\t" \ - " j 0b\n\t" /* Switch to vx-loop. */ \ - /* Exit with __GCONV_FULL_OUTPUT. */ \ - "90: lghi %[R_RES],%[RES_OUT_FULL]\n\t" \ - "99: \n\t" \ - ".machine pop" \ - : /* outputs */ [R_IN] "+a" (inptr) \ - , [R_INLEN] "+d" (inlen), [R_OUT] "+a" (outptr) \ - , [R_OUTLEN] "+d" (outlen), [R_TMP] "=a" (tmp) \ - , [R_TMP2] "=d" (tmp2), [R_TMP3] "=a" (tmp3) \ - , [R_RES] "+d" (result) \ - : /* inputs */ \ - [RES_OUT_FULL] "i" (__GCONV_FULL_OUTPUT) \ - , [RES_IN_ILL] "i" (__GCONV_ILLEGAL_INPUT) \ - , [RES_IN_FULL] "i" (__GCONV_INCOMPLETE_INPUT) \ - : /* clobber list */ "memory", "cc" \ - ASM_CLOBBER_VR ("v16") ASM_CLOBBER_VR ("v17") \ - ASM_CLOBBER_VR ("v18") ASM_CLOBBER_VR ("v19") \ - ASM_CLOBBER_VR ("v30") ASM_CLOBBER_VR ("v31") \ - ); \ - if (__glibc_likely (inptr == inend) \ - || result != __GCONV_ILLEGAL_INPUT) \ - break; \ - \ - STANDARD_TO_LOOP_ERR_HANDLER (2); \ - } - -/* Generate loop-function with vector implementation. */ -# define MIN_NEEDED_INPUT MIN_NEEDED_TO -# define MAX_NEEDED_INPUT MAX_NEEDED_TO -# define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM -# define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM -# define TO_LOOP_VX __to_utf8_loop_vx -# define LOOPFCT TO_LOOP_VX -# define BODY BODY_TO_VX -# define LOOP_NEED_FLAGS -# include <iconv/loop.c> -#else -# define TO_LOOP_VX NULL -#endif /* HAVE_TO_VX != 1 */ - -/* This file also exists in sysdeps/s390/multiarch/ which - generates ifunc resolvers for FROM/TO_LOOP functions - and includes iconv/skeleton.c afterwards. */ -#if ! defined USE_MULTIARCH -# include <iconv/skeleton.c> -#endif |