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This patch reworks the existing s390 64bit specific iconv modules in order
to use them on s390 31bit, too.
Thus the parts for subdirectory iconvdata in sysdeps/s390/s390-64/Makefile
were moved to sysdeps/s390/Makefile so that they apply on 31bit, too.
All those modules are moved from sysdeps/s390/s390-64 directory to sysdeps/s390.
The iso-8859-1 to/from cp037 module was adjusted, to use brct (branch relative
on count) instruction on 31bit s390 instead of brctg, because the brctg is a
zarch instruction and is not available on a 31bit kernel.
The utf modules are using zarch instructions, thus the directive machinemode
zarch_nohighgprs was added to the inline assemblies to omit the high-gprs flag
in the shared libraries. Otherwise they can't be loaded on a 31bit kernel.
The ifunc resolvers were adjusted in order to call the etf3eh or vector variants
only if zarch instructions are available (64bit kernel in 31bit compat-mode).
Furthermore some variable types were changed. E.g. unsigned long long would be
a register pair on s390 31bit, but we want only one single register.
For variables of type size_t the register contents have to be enlarged from a
32bit to a 64bit value on 31bit, because the inline assemblies uses 64bit values
in such cases.
ChangeLog:
* sysdeps/s390/s390-64/Makefile (iconvdata-subdirectory):
Move to ...
* sysdeps/s390/Makefile: ... here.
* sysdeps/s390/s390-64/iso-8859-1_cp037_z900.c: Move to ...
* sysdeps/s390/iso-8859-1_cp037_z900.c: ... here.
(BRANCH_ON_COUNT): New define.
(TR_LOOP): Use BRANCH_ON_COUNT instead of brctg.
* sysdeps/s390/s390-64/utf16-utf32-z9.c: Move to ...
* sysdeps/s390/utf16-utf32-z9.c: ... here and adjust to
run on s390-32, too.
* sysdeps/s390/s390-64/utf8-utf16-z9.c: Move to ...
* sysdeps/s390/utf8-utf16-z9.c: ... here and adjust to
run on s390-32, too.
* sysdeps/s390/s390-64/utf8-utf32-z9.c: Move to ...
* sysdeps/s390/utf8-utf32-z9.c: ... here and adjust to
run on s390-32, too.
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This patch reworks the s390 specific module to convert between utf16 and utf32.
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 32 to utf16, the vector variant optimizes input of
2byte utf16 characters. The convert utf instruction is used if an utf16
surrogate is found.
For the other direction utf16 to utf32, the cu24 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 utf16
surrogate characters.
This patch also fixes some whitespace errors. Furthermore, the etf3eh variant is
handling the "UTF-xx//IGNORE" case now. Before they ignored the ignore-case and
always stopped at an error.
ChangeLog:
* sysdeps/s390/s390-64/utf16-utf32-z9.c: Use ifunc to select c,
etf3eh or new vector loop-variant.
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* sysdeps/s390/fpu/bits/mathinline.h:
Use __asm__ [__volatile__] instead of asm [volatile].
* sysdeps/s390/abort-instr.h: Likewise.
* sysdeps/s390/atomic-machine.h: Likewise.
* sysdeps/s390/bits/string.h: Likewise.
* sysdeps/s390/dl-tls.h: Likewise.
* sysdeps/s390/fpu/e_sqrt.c: Likewise.
* sysdeps/s390/fpu/e_sqrtf.c: Likewise.
* sysdeps/s390/fpu/e_sqrtl.c: Likewise.
* sysdeps/s390/fpu/fesetround.c: Likewise.
* sysdeps/s390/fpu/fpu_control.h: Likewise.
* sysdeps/s390/fpu/s_fma.c: Likewise.
* sysdeps/s390/fpu/s_fmaf.c: Likewise.
* sysdeps/s390/memusage.h: Likewise.
* sysdeps/s390/multiarch/ifunc-resolve.h: Likewise.
* sysdeps/s390/nptl/pthread_spin_lock.c: Likewise.
* sysdeps/s390/nptl/pthread_spin_trylock.c: Likewise.
* sysdeps/s390/nptl/pthread_spin_unlock.c: Likewise.
* sysdeps/s390/nptl/tls.h: Likewise.
* sysdeps/s390/s390-32/__longjmp.c: Likewise.
* sysdeps/s390/s390-32/backtrace.c: Likewise.
* sysdeps/s390/s390-32/dl-machine.h: Likewise.
* sysdeps/s390/s390-32/multiarch/memcmp.c: Likewise.
* sysdeps/s390/s390-32/stackguard-macros.h: Likewise.
* sysdeps/s390/s390-32/tls-macros.h: Likewise.
* sysdeps/s390/s390-64/__longjmp.c: Likewise.
* sysdeps/s390/s390-64/backtrace.c: Likewise.
* sysdeps/s390/s390-64/dl-machine.h: Likewise.
* sysdeps/s390/s390-64/iso-8859-1_cp037_z900.c: Likewise.
* sysdeps/s390/s390-64/multiarch/memcmp.c: Likewise.
* sysdeps/s390/s390-64/stackguard-macros.h: Likewise.
* sysdeps/s390/s390-64/tls-macros.h: Likewise.
* sysdeps/s390/s390-64/utf16-utf32-z9.c: Likewise.
* sysdeps/s390/s390-64/utf8-utf16-z9.c: Likewise.
* sysdeps/s390/s390-64/utf8-utf32-z9.c: Likewise.
* sysdeps/unix/sysv/linux/s390/brk.c: Likewise.
* sysdeps/unix/sysv/linux/s390/elision-trylock.c: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/s390/sysconf.c: Likewise.
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This patch fixes the remaining ONE_DIRECTION warnings for s390 specific conversions.
It defines ONE_DIRECTION to 0 like the patch from Steve Ellcey:
https://www.sourceware.org/ml/libc-alpha/2014-05/msg00039.html
Changelog:
* sysdeps/s390/s390-64/utf16-utf32-z9.c
(ONE_DIRECTION): Define.
* sysdeps/s390/s390-64/utf8-utf16-z9.c
(ONE_DIRECTION): Define.
* sysdeps/s390/s390-64/utf8-utf32-z9.c
(ONE_DIRECTION): Define.
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iconv modules
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