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Szabolcs Nagy f5f0f52651 New expf and exp2f version without SVID compat wrapper 
This patch changes the expf and exp2f error handling semantics to only
set errno accoring to POSIX rules. New symbol version is introduced at
GLIBC_2.27.

The old wrappers are kept for compat symbols.

Internal calls to __expf now get the new error semantics, this seems to
only affect sysdeps/i386/fpu/s_expm1f.S where the errno-only behaviour
should be correct.

ia64 needed assembly change to have the new and compat versioned symbol
map to the same function.

All linux libm abilists are updated.

	* math/Versions (expf): New libm symbol at GLIBC_2.27.
	(exp2f): Likewise.
	* math/w_exp2f.c: New file.
	* math/w_expf.c: New file.
	* math/w_exp2f_compat.c (__exp2f_compat): For compat symbol only.
	* math/w_expf_compat.c (__expf_compat): Likewise.
	* sysdeps/ia64/fpu/e_exp2f.S: Add versioned symbols.
	* sysdeps/ia64/fpu/e_expf.S: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* 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.
 		2017-09-25 10:45:08 +01:00
..
aarch64 Optimized generic expf and exp2f with wrappers 2017-09-25 10:44:39 +01:00
alpha Obsolete pow10 functions. 2017-09-01 21:13:18 +00:00
arm Enable unwind info in libc-start.c and backtrace.c 2017-09-19 15:07:58 +01:00
generic Define and use libm_alias_float128. 2017-09-14 01:11:46 +00:00
gnu posix: Sync glob with gnulib [BZ #1062] 2017-09-08 09:39:13 +02:00
hppa Obsolete pow10 functions. 2017-09-01 21:13:18 +00:00
i386 Optimized generic expf and exp2f with wrappers 2017-09-25 10:44:39 +01:00
ia64 New expf and exp2f version without SVID compat wrapper 2017-09-25 10:45:08 +01:00
ieee754 Optimized generic expf and exp2f with wrappers 2017-09-25 10:44:39 +01:00
init_array
…
m68k Optimized generic expf and exp2f with wrappers 2017-09-25 10:44:39 +01:00
mach hurd: Fix bits/socket.h conformity 2017-09-24 22:21:41 +02:00
microblaze Obsolete pow10 functions. 2017-09-01 21:13:18 +00:00
mips Enable unwind info in libc-start.c and backtrace.c 2017-09-19 15:07:58 +01:00
nios2 Enable unwind info in libc-start.c and backtrace.c 2017-09-19 15:07:58 +01:00
nptl Remove extra semicolons in struct pthread_mutex (bug 21804) 2017-07-24 12:22:05 +02:00
posix Add missing libc_hidden_weak/def calls 2017-09-17 21:57:39 +02:00
powerpc powerpc: Add redirection for finitef128, isinf128, and isnanf128 2017-09-21 17:37:39 -03:00
pthread aio: Remove internal_function function attribute 2017-08-31 15:59:06 +02:00
s390 Obsolete pow10 functions. 2017-09-01 21:13:18 +00:00
sh Enable unwind info in libc-start.c and backtrace.c 2017-09-19 15:07:58 +01:00
sparc Enable unwind info in libc-start.c and backtrace.c 2017-09-19 15:07:58 +01:00
tile Obsolete pow10 functions. 2017-09-01 21:13:18 +00:00
unix New expf and exp2f version without SVID compat wrapper 2017-09-25 10:45:08 +01:00
wordsize-32
…
wordsize-64 posix: Consolidate Linux glob implementation 2017-09-08 16:34:02 +02:00
x86 x86: Add MathVec_Prefer_No_AVX512 to cpu-features [BZ #21967] 2017-09-12 07:54:47 -07:00
x86_64 Add SSE4.1 trunc, truncf (bug 20142). 2017-09-20 16:54:05 +00:00