mirror of
https://sourceware.org/git/glibc.git
synced 2025-01-11 20:00:07 +00:00
5bd11b1909
This patch reworks the s390 specific module to convert between utf8 and utf16. Now ifunc is used to choose either the c or etf3eh (with convert utf instruction) variants at runtime. Furthermore a new vector variant for z13 is introduced which will be build and chosen if vector support is available at build / runtime. In case of converting utf 8 to utf16, the vector variant optimizes input of 1byte utf8 characters. The convert utf instruction is used if a multibyte utf8 character is found. For the other direction utf16 to utf8, the cu21 instruction can't be re-enabled, because it does not report an error, if the input-stream consists of a single low surrogate utf16 char (e.g. 0xdc00). This applies to the newest z13, too. Thus there is only the c or the new vector variant, which can handle 1..4 byte utf8 characters. The c variant from utf16 to utf8 has beed fixed. If a high surrogate was at the end of the input-buffer, then errno was set to EINVAL and the input-pointer pointed just after the high surrogate. Now it points to the beginning of the high surrogate. This patch also fixes some whitespace errors. The c variant from utf8 to utf16 is now checking that tail-bytes starts with 0b10... and the value is not in range of an utf16 surrogate. Furthermore, the etf3eh variants are handling the "UTF-xx//IGNORE" case now. Before they ignored the ignore-case and always stopped at an error. ChangeLog: * sysdeps/s390/s390-64/utf8-utf16-z9.c: Use ifunc to select c, etf3eh or new vector loop-variant. |
||
|---|---|---|
| .. | ||
| aarch64 | ||
| alpha | ||
| arm | ||
| generic | ||
| gnu | ||
| hppa | ||
| i386 | ||
| ia64 | ||
| ieee754 | ||
| init_array | ||
| m68k | ||
| mach | ||
| microblaze | ||
| mips | ||
| nacl | ||
| nios2 | ||
| nptl | ||
| posix | ||
| powerpc | ||
| pthread | ||
| s390 | ||
| sh | ||
| sparc | ||
| tile | ||
| unix | ||
| wordsize-32 | ||
| wordsize-64 | ||
| x86 | ||
| x86_64 | ||