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718d6542f2
glibc/sysdeps/unix/sysv/linux/powerpc
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Szabolcs Nagy 718d6542f2 Remove the error handling wrapper from log2 
Introduce new log2 symbol version that doesn't do SVID compatible error
handling.  The standard errno and fp exception based error handling is
inline in the new code and does not have significant overhead.

The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty
w_log2.c and enabled for targets with their own log2 implementation by
including math/w_log2.c.

The compatibility symbol version still uses the wrapper with SVID error
handling around the new code.  There is no new symbol version nor
compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv).

On targets where previously log2l was an alias of log2, now it points to
the compatibility symbol with the wrapper, because it still need the
SVID compatible error handling.  This affects NO_LONG_DOUBLE (e.g. arm)
and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well.

The __log2_finite symbol is now an alias of log2.  Both __log2_finite
and log2 set errno and thus not const functions.

The ia64 asm is changed so the compat and new symbol versions map to the
same address.

Tested with build-many-glibcs.py.

	* math/Versions (GLIBC_2.29): Add log2.
	* math/w_log2_compat.c (__log2_compat): Change to versioned compat
	symbol.
	* math/w_log2.c: New file.
	* sysdeps/i386/fpu/w_log2.c: New file.
	* sysdeps/ia64/fpu/e_log2.S: Add versioned symbols.
	* sysdeps/ieee754/dbl-64/e_log2.c (__ieee754_log2): Rename to __log2
	and add necessary aliases.
	* sysdeps/ieee754/dbl-64/w_log2.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_log2.c: New file.
	* sysdeps/mach/hurd/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
2018-11-21 09:57:21 +00:00
..
bits Y2038: provide size of default time_t for target architecture 2018-10-24 11:37:09 +02:00
powerpc32 Remove the error handling wrapper from log2 2018-11-21 09:57:21 +00:00
powerpc64 Remove the error handling wrapper from log2 2018-11-21 09:57:21 +00:00
sys Unify some sys/procfs.h headers. 2018-09-25 16:48:15 +00:00
configure Move architecture cases out of sysdeps/unix/sysv/linux/configure.ac. 2014-06-24 20:53:03 +00:00
configure.ac Move architecture cases out of sysdeps/unix/sysv/linux/configure.ac. 2014-06-24 20:53:03 +00:00
dl-brk.S
dl-cache.h Update. 2003-06-25 08:19:44 +00:00
dl-static.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
dl-sysdep.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
elision-conf.c powerpc: Only enable TLE with PPC_FEATURE2_HTM_NOSC 2018-09-21 10:18:03 -07:00
elision-conf.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
elision-lock.c powerpc: Fix TLE build for SPE (BZ #22926) 2018-03-07 17:39:44 -03:00
elision-timed.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
elision-trylock.c powerpc: Fix TLE build for SPE (BZ #22926) 2018-03-07 17:39:44 -03:00
elision-unlock.c powerpc: Fix TLE build for SPE (BZ #22926) 2018-03-07 17:39:44 -03:00
force-elision.h Fix race in pthread_mutex_lock while promoting to PTHREAD_MUTEX_ELISION_NP [BZ #23275] 2018-10-17 12:23:04 +02:00
get_clockfreq.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
get_timebase_freq.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
getmsg.c
gettimeofday.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
htm.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
Implies NPTL is no longer an add-on! 2014-07-07 09:29:06 -07:00
init-first.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ioctl.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ipc_priv.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
kernel_sigaction.h linux: Consolidate sigaction implementation 2018-04-05 17:09:50 -03:00
kernel_termios.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
kernel-features.h Remove __ASSUME_SOCKETCALL. 2018-11-08 20:28:07 +00:00
ldconfig.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ldd-rewrite.sed
ldsodefs.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
libc-start.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
libc-start.h hurd: Initialize TLS and libpthread before signal thread start 2018-03-25 00:52:39 +01:00
libc-vdso.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
lowlevellock.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
Makefile Remove abi-*-options compiler flags 2017-08-28 17:16:53 +02:00
nldbl-abi.h 2006-01-27 Dwayne Grant McConnell <decimal@us.ibm.com> 2006-01-28 00:15:15 +00:00
profil-counter.h
pt-longjmp.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
pthread_attr_setstack.c PowerPC: Move remaining nptl/sysdeps/unix/sysv/linux/powerpc/ files. 2014-05-26 11:45:14 -05:00
pthread_attr_setstacksize.c PowerPC: Move remaining nptl/sysdeps/unix/sysv/linux/powerpc/ files. 2014-05-26 11:45:14 -05:00
pthread_mutex_cond_lock.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
pthread_mutex_lock.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
pthread_mutex_timedlock.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
pthread_mutex_trylock.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
putmsg.c
readelflib.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
rt-sysdep.c Update. 2004-04-19 06:19:34 +00:00
sigcontextinfo.h Remove unused frame.h header, sigcontextinfo.h macros. 2018-03-22 16:40:51 +00:00
syscall.S powerpc: Only enable TLE with PPC_FEATURE2_HTM_NOSC 2018-09-21 10:18:03 -07:00
sysconf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
sysdep.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-gettimebasefreq.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
test-powerpc-linux-sysconf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
time.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
Versions Revert {send,sendm,recv,recvm}msg conformance changes 2016-06-10 11:58:16 -03:00