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glibc/sysdeps/s390
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Joseph Myers 780257d48d Add fetestexceptflag. 
TS 18661-1 defines an fetestexceptflag function to test the exception
state saved in an fexcept_t object by fegetexceptflag.

This patch implements this function for glibc.  Almost all
architectures save exception state in such a way that it can be
directly ANDed with exception flag bits, so rather than having lots of
fetestexceptflag implementations that all do the same thing, the math/
implementation is made to use this generic logic (which is also OK in
the fallback case where FE_ALL_EXCEPT is zero).  The only architecture
that seems to need anything different is s390.

(fegetexceptflag and fesetexceptflag use abbreviated filenames
fgetexcptflg.c and fsetexcptflg.c.  Because we are no longer concerned
by 14-character filename limits, fetestexceptflag uses the obvious
filename fetestexceptflag.c.)

The NEWS entry is intended to be expanded along the lines given in
<https://sourceware.org/ml/libc-alpha/2016-08/msg00356.html> when
fegetmode and fesetmode are added.

Tested for x86_64, x86, mips64 and powerpc.

	* math/fetestexceptflag.c: New file.
	* sysdeps/s390/fpu/fetestexceptflag.c: Likewise.  Comment by
	Stefan Liebler.
	* math/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(fetestexceptflag): New function declaration.
	* manual/arith.texi (fetestexceptflag): Document function.
	* math/Versions (fetestexceptflag): New libm symbol at version
	GLIBC_2.25.
	* math/Makefile (libm-support): Add fetestexceptflag.
	(tests): Add test-fetestexceptflag.
	* math/test-fetestexceptflag.c: New file.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
2016-08-29 11:47:21 +00:00
..
bits S390: Extend structs La_s390_regs / La_s390_retval with vector-registers. 2016-03-31 17:37:16 +02:00
fpu Add fetestexceptflag. 2016-08-29 11:47:21 +00:00
multiarch S390: Optimize builtin iconv-modules. 2016-05-25 17:18:04 +02:00
nptl Do not override objects in libc.a in other static libraries [BZ #20452] 2016-08-17 14:57:01 +02:00
s390-32 S390: Do not clobber r13 with memcpy on 31bit with copies >1MB. 2016-07-20 08:29:43 +02:00
s390-64 S390: Use DT_JUMPREL in prelink undo code. 2016-07-06 15:22:35 +02:00
abort-instr.h S390: Use __asm__ instead of asm. 2015-11-20 08:56:40 +01:00
asm-syntax.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
atomic-machine.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
configure S390: Configure check for vector support in gcc. 2016-05-25 17:18:04 +02:00
configure.ac S390: Configure check for vector support in gcc. 2016-05-25 17:18:04 +02:00
dl-irel.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-procinfo.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-procinfo.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-tls.h elf: Consolidate machine-agnostic DTV definitions in <dl-dtv.h> 2016-06-20 14:31:40 +02:00
ffs.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fix-fp-int-convert-overflow.h S/390: Do not raise inexact exception in lrint/lround. [BZ #19486] 2016-01-18 12:48:06 +01:00
gccframe.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
gconv-modules S390: Get rid of make warning: overriding recipe for target gconv-modules. 2016-05-25 17:18:04 +02:00
gmp-mparam.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Implies * math/divtc3.c: New file. 2006-02-01 03:02:06 +00:00
iso-8859-1_cp037_z900.c S390: Use s390-64 specific ionv-modules on s390-32, too. 2016-05-25 17:18:05 +02:00
jmpbuf-offsets.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ldsodefs.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libc-tls.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
linkmap.h S390: Use DT_JUMPREL in prelink undo code. 2016-07-06 15:22:35 +02:00
longjmp.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
machine-gmon.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Makefile S390: Use s390-64 specific ionv-modules on s390-32, too. 2016-05-25 17:18:05 +02:00
mempcpy.S S390: Implement mempcpy with help of memcpy. [BZ #19765] 2016-05-24 10:39:13 +02:00
memusage.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
preconfigure Move base_machine and machine settings from configure.ac to sysdeps preconfigure fragments. 2014-06-25 17:52:56 +00:00
sotruss-lib.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
stackinfo.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
string_private.h Add _STRING_INLINE_unaligned and string_private.h 2016-02-18 14:55:29 -02:00
utf8-utf16-z9.c S390: Use s390-64 specific ionv-modules on s390-32, too. 2016-05-25 17:18:05 +02:00
utf8-utf32-z9.c S390: Fix utf32 to utf8 handling of low surrogates (disable cu41). 2016-05-25 17:18:05 +02:00
utf16-utf32-z9.c S390: Fix utf32 to utf16 handling of low surrogates (disable cu42). 2016-05-25 17:18:06 +02:00
Versions S/390: Revert the jmp_buf/ucontext_t ABI change. 2014-07-31 20:04:54 +02:00