Commit Graph

339 Commits

Author SHA1 Message Date
Paul Eggert
5cb226d7e4 Fix three GNU license URLs, along with trailing-newline issues. 2019-09-07 03:13:16 -07:00
Paul Eggert
5a82c74822 Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 02:43:31 -07:00
Paul Eggert
e6855a3bdf Fix spellings of contributor names in comments and doc 2019-08-23 13:11:05 -07:00
Adhemerval Zanella
1e372ded4f Refactor hp-timing rtld usage
This patch refactor how hp-timing is used on loader code for statistics
report.  The HP_TIMING_AVAIL and HP_SMALL_TIMING_AVAIL are removed and
HP_TIMING_INLINE is used instead to check for hp-timing avaliability.
For alpha, which only defines HP_SMALL_TIMING_AVAIL, the HP_TIMING_INLINE
is set iff for IS_IN(rtld).

Checked on aarch64-linux-gnu, x86_64-linux-gnu, and i686-linux-gnu. I also
checked the builds for all afected ABIs.

	* benchtests/bench-timing.h: Replace HP_TIMING_AVAIL with
	HP_TIMING_INLINE.
	* nptl/descr.h: Likewise.
	* elf/rtld.c (RLTD_TIMING_DECLARE, RTLD_TIMING_NOW, RTLD_TIMING_DIFF,
	RTLD_TIMING_ACCUM_NT, RTLD_TIMING_SET): Define.
	(dl_start_final_info, _dl_start_final, dl_main, print_statistics):
	Abstract hp-timing usage with RTLD_* macros.
	* sysdeps/alpha/hp-timing.h (HP_TIMING_INLINE): Define iff IS_IN(rtld).
	(HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL): Remove.
	* sysdeps/generic/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL,
	HP_TIMING_NONAVAIL): Likewise.
	* sysdeps/ia64/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL):
	Likewise.
	* sysdeps/powerpc/powerpc32/power4/hp-timing.h (HP_TIMING_AVAIL,
	HP_SMALL_TIMING_AVAIL): Likewise.
	* sysdeps/powerpc/powerpc64/hp-timing.h (HP_TIMING_AVAIL,
	HP_SMALL_TIMING_AVAIL): Likewise.
	* sysdeps/sparc/sparc32/sparcv9/hp-timing.h (HP_TIMING_AVAIL,
	HP_SMALL_TIMING_AVAIL): Likewise.
	* sysdeps/sparc/sparc64/hp-timing.h (HP_TIMING_AVAIL,
	HP_SMALL_TIMING_AVAIL): Likewise.
	* sysdeps/x86/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL):
	Likewise.
	* sysdeps/generic/hp-timing-common.h: Update comment with
	HP_TIMING_AVAIL removal.
2019-03-22 17:30:44 -03:00
Joseph Myers
aa0e46636a Break further lines before not after operators.
This patch continues the process of fixing coding style to break lines
before not after operators in accordance with the GNU Coding
Standards, fixing such issues in a non-exhaustive selection of sysdeps
files that had them.

Tested for x86_64, and with build-many-glibcs.py.

	* sysdeps/arm/sysdep.h (#if condition): Break lines before rather
	than after operators.
	* sysdeps/mach/hurd/fork.c (__fork): Likewise.
	* sysdeps/mach/hurd/getcwd.c
	(__hurd_canonicalize_directory_name_internal): Likewise.
	* sysdeps/mach/hurd/htl/pt-mutex-consistent.c
	(pthread_mutex_consistent): Likewise.
	* sysdeps/mach/hurd/htl/pt-mutex-init.c (_pthread_mutex_init):
	Likewise.
	* sysdeps/mach/hurd/htl/pt-mutex-transfer-np.c
	(__pthread_mutex_transfer_np): Likewise.
	* sysdeps/mach/hurd/htl/pt-mutex-unlock.c
	(__pthread_mutex_unlock): Likewise.
	* sysdeps/mach/hurd/htl/pt-mutex.h (ROBUST_LOCK): Likewise.
	(mtx_owned_p): Likewise.
	* sysdeps/mach/hurd/htl/pt-mutexattr-getrobust.c
	(pthread_mutexattr_getrobust): Likewise.
	* sysdeps/mach/hurd/i386/init-first.c (init1): Likewise.
	* sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler):
	Likewise.
	* sysdeps/mach/hurd/ioctl.c (__ioctl): Likewise.
	* sysdeps/mach/hurd/jmp-unwind.c (_longjmp_unwind): Likewise.
	* sysdeps/mach/hurd/kill.c (__kill): Likewise.
	* sysdeps/mach/hurd/mig-reply.c (__mig_get_reply_port): Likewise.
	* sysdeps/mach/hurd/ptrace.c (ptrace): Likewise.
	* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sysdep.h (#if condition):
	Likewise.
	* sysdeps/unix/sysv/linux/alpha/ioperm.c (process_cpuinfo):
	Likewise.
	* sysdeps/unix/sysv/linux/bits/timex.h (STA_RONLY): Likewise.
	* sysdeps/unix/sysv/linux/csky/sysdep.h (#if condition): Likewise.
	* sysdeps/unix/sysv/linux/generic/____longjmp_chk.c
	(____longjmp_chk): Likewise.
	* sysdeps/unix/sysv/linux/generic/futimesat.c (futimesat):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
	(INTERNAL_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
	(INTERNAL_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c
	(__get_clockfreq_via_cpuinfo): Likewise.
2019-02-26 15:01:50 +00:00
Joseph Myers
8c9289b642 Fix SPARC64 handling of R_SPARC_H34 (bug 24231).
Building glibc with -Wextra shows a -Wimplicit-fallthrough warning for
SPARC64 that appears to be a real bug in glibc.  The dynamic linker
handling of R_SPARC_H34 falls through to that of R_SPARC_H44, which in
the case of this code is nonsensical (it means the value computed for
R_SPARC_H34 gets overwritten by one computed with the different logic
for R_SPARC_H44).  Thus, this patch adds the missing break there.
Note: I do not have a testcase to demonstrate this bug.

Tested with build-many-glibcs.py.

	[BZ #24231]
	* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela): Add break
	after R_SPARC_H34 case.
2019-02-18 22:33:29 +00:00
H.J. Lu
69da3c9e87 soft-fp: Properly check _FP_W_TYPE_SIZE [BZ #24066]
quad.h have

 #if _FP_W_TYPE_SIZE < 64

union _FP_UNION_Q
{
  Use 4 _FP_W_TYPEs
}

 #else

union _FP_UNION_Q
{
  Use 2 _FP_W_TYPEs
}

 #endif

Replace

 #if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q

with

 #if _FP_W_TYPE_SIZE < 64

to check whether 4 or 2 _FP_W_TYPEs are used for IEEE quad precision.
Tested with build-many-glibcs.py.

	[BZ #24066]
	* soft-fp/extenddftf2.c: Use "_FP_W_TYPE_SIZE < 64" to check if
	4_FP_W_TYPEs are used for IEEE quad precision.
	* soft-fp/extendhftf2.c: Likewise.
	* soft-fp/extendsftf2.c: Likewise.
	* soft-fp/extendxftf2.c: Likewise.
	* soft-fp/trunctfdf2.c: Likewise.
	* soft-fp/trunctfhf2.c: Likewise.
	* soft-fp/trunctfsf2.c: Likewise.
	* soft-fp/trunctfxf2.c: Likewise.
	* sysdeps/alpha/ots_cvttx.c: Likewise.
	* sysdeps/alpha/ots_cvtxt.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_daddl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_ddivl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_dmull.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_dsubl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_faddl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fdivl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fmull.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fsubl.c: Likewise.
	* sysdeps/sparc/sparc32/q_dtoq.c: Likewise.
	* sysdeps/sparc/sparc32/q_qtod.c: Likewise.
	* sysdeps/sparc/sparc32/q_qtos.c: Likewise.
	* sysdeps/sparc/sparc32/q_stoq.c: Likewise.
	* sysdeps/sparc/sparc64/qp_dtoq.c: Likewise.
	* sysdeps/sparc/sparc64/qp_qtod.c: Likewise.
	* sysdeps/sparc/sparc64/qp_qtos.c: Likewise.
	* sysdeps/sparc/sparc64/qp_stoq.c: Likewise.
2019-01-07 09:04:39 -08:00
Joseph Myers
04277e02d7 Update copyright dates with scripts/update-copyrights.
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
2019-01-01 00:11:28 +00:00
Joseph Myers
7abf97bed9 Use trunc functions not __trunc functions in glibc libm.
Continuing the move to use, within libm, public names for libm
functions that can be inlined as built-in functions on many
architectures, this patch moves calls to __trunc functions to call the
corresponding trunc names instead, with asm redirection to __trunc
when the calls are not inlined.

Tested for x86_64, and with build-many-glibcs.py.

	* include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ &&
	__FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (trunc): Redirect
	using MATH_REDIRECT.
	* sysdeps/aarch64/fpu/s_trunc.c: Define NO_MATH_REDIRECT before
	header inclusion.
	* sysdeps/aarch64/fpu/s_truncf.c: Likewise.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_trunc.c: Likewise.
	* sysdeps/ieee754/float128/s_truncf128.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_trunc.c: Likewise.
	* sysdeps/ieee754/flt-32/s_truncf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_truncl.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_trunc.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_truncf.c: Likewise.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_trunc.c: Likewise.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_truncf.c: Likewise.
	* sysdeps/riscv/rv64/rvd/s_trunc.c: Likewise.
	* sysdeps/riscv/rvf/s_truncf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_trunc.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_truncf.c: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_trunc.c: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_truncf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_trunc_template.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_truncl.c: Likewise.
	(ceil): Redirect to __ceil.
	(floor): Redirect to __floor.
	(trunc): Redirect to __trunc.
	(__truncl): Call trunc instead of __trunc.
	* sysdeps/powerpc/fpu/math_private.h [_ARCH_PWR5X] (__trunc):
	Remove macro.
	[_ARCH_PWR5X] (__truncf): Likewise.
	* sysdeps/ieee754/dbl-64/e_gamma_r.c (__ieee754_gamma_r): Use
	trunc functions instead of __trunc variants.
	* sysdeps/ieee754/flt-32/e_gammaf_r.c (__ieee754_gammaf_r):
	Likewise.
	* sysdeps/ieee754/ldbl-128/e_gammal_r.c (__ieee754_gammal_r):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (__ieee754_gammal_r):
	Likewise.
	* sysdeps/ieee754/ldbl-96/e_gammal_r.c (__ieee754_gammal_r):
	Likewise.
2018-09-20 21:11:10 +00:00
Joseph Myers
71223ef909 Use ceil functions not __ceil functions in glibc libm.
Continuing the move to use, within libm, public names for libm
functions that can be inlined as built-in functions on many
architectures, this patch moves calls to __ceil functions to call the
corresponding ceil names instead, with asm redirection to __ceil when
the calls are not inlined.

Tested for x86_64, and with build-many-glibcs.py.

	* include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ &&
	__FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (ceil): Redirect
	using MATH_REDIRECT.
	* sysdeps/aarch64/fpu/s_ceil.c: Define NO_MATH_REDIRECT before
	header inclusion.
	* sysdeps/aarch64/fpu/s_ceilf.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_ceil.c: Likewise.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c: Likewise.
	* sysdeps/ieee754/float128/s_ceilf128.c: Likewise.
	* sysdeps/ieee754/flt-32/s_ceilf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_ceill.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_ceill.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_ceil_template.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf.c: Likewise.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceil.c: Likewise.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceilf.c: Likewise.
	* sysdeps/riscv/rv64/rvd/s_ceil.c: Likewise.
	* sysdeps/riscv/rvf/s_ceilf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_ceil.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_ceilf.c: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_ceil.c: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_ceilf.c: Likewise.
	* sysdeps/powerpc/fpu/math_private.h [_ARCH_PWR5X] (__ceil):
	Remove macro.
	* sysdeps/ieee754/dbl-64/e_gamma_r.c (gamma_positive): Use ceil
	functions instead of __ceil variants.
	* sysdeps/ieee754/flt-32/e_gammaf_r.c (gammaf_positive): Likewise.
	* sysdeps/ieee754/ldbl-128/e_gammal_r.c (gammal_positive):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (gammal_positive):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_truncl.c (__truncl): Likewise.
	* sysdeps/ieee754/ldbl-96/e_gammal_r.c (gammal_positive):
	Likewise.
	* sysdeps/powerpc/power5+/fpu/s_modf.c (__modf): Likewise.
	* sysdeps/powerpc/power5+/fpu/s_modff.c (__modff): Likewise.
2018-09-17 20:42:06 +00:00
Joseph Myers
f29b6f17e4 Use rint functions not __rint functions in glibc libm.
Continuing the move to use, within libm, public names for libm
functions that can be inlined as built-in functions on many
architectures, this patch moves calls to __rint functions to call the
corresponding rint names instead, with asm redirection to __rint when
the calls are not inlined.  The x86_64 math_private.h is removed as no
longer useful after this patch.

This patch is relative to a tree with my floor patch
<https://sourceware.org/ml/libc-alpha/2018-09/msg00148.html> applied,
and much the same considerations arise regarding possibly replacing an
IFUNC call with a direct inline expansion.

Tested for x86_64, and with build-many-glibcs.py.

	* include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ &&
	__FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (rint): Redirect
	using MATH_REDIRECT.
	* sysdeps/aarch64/fpu/s_rint.c: Define NO_MATH_REDIRECT before
	header inclusion.
	* sysdeps/aarch64/fpu/s_rintf.c: Likewise.
	* sysdeps/alpha/fpu/s_rint.c: Likewise.
	* sysdeps/alpha/fpu/s_rintf.c: Likewise.
	* sysdeps/i386/fpu/s_rintl.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_rint.c: Likewise.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_rint.c: Likewise.
	* sysdeps/ieee754/float128/s_rintf128.c: Likewise.
	* sysdeps/ieee754/flt-32/s_rintf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_rintl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_rintl.c: Likewise.
	* sysdeps/m68k/coldfire/fpu/s_rint.c: Likewise.
	* sysdeps/m68k/coldfire/fpu/s_rintf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_rint.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_rintf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_rintl.c: Likewise.
	* sysdeps/powerpc/fpu/s_rint.c: Likewise.
	* sysdeps/powerpc/fpu/s_rintf.c: Likewise.
	* sysdeps/riscv/rv64/rvd/s_rint.c: Likewise.
	* sysdeps/riscv/rvf/s_rintf.c: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint.c: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_rint.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_rintf.c: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_rint.c: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_rintf.c: Likewise.
	* sysdeps/x86_64/fpu/math_private.h: Remove file.
	* math/e_scalb.c (invalid_fn): Use rint functions instead of
	__rint variants.
	* math/e_scalbf.c (invalid_fn): Likewise.
	* math/e_scalbl.c (invalid_fn): Likewise.
	* sysdeps/ieee754/dbl-64/e_gamma_r.c (__ieee754_gamma_r):
	Likewise.
	* sysdeps/ieee754/flt-32/e_gammaf_r.c (__ieee754_gammaf_r):
	Likewise.
	* sysdeps/ieee754/k_standard.c (__kernel_standard): Likewise.
	* sysdeps/ieee754/k_standardl.c (__kernel_standard_l): Likewise.
	* sysdeps/ieee754/ldbl-128/e_gammal_r.c (__ieee754_gammal_r):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (__ieee754_gammal_r):
	Likewise.
	* sysdeps/ieee754/ldbl-96/e_gammal_r.c (__ieee754_gammal_r):
	Likewise.
	* sysdeps/powerpc/powerpc32/fpu/s_llrint.c (__llrint): Likewise.
	* sysdeps/powerpc/powerpc32/fpu/s_llrintf.c (__llrintf): Likewise.
2018-09-14 13:10:39 +00:00
Joseph Myers
e44acb2063 Use floor functions not __floor functions in glibc libm.
Similar to the changes that were made to call sqrt functions directly
in glibc, instead of __ieee754_sqrt variants, so that the compiler
could inline them automatically without needing special inline
definitions in lots of math_private.h headers, this patch makes libm
code call floor functions directly instead of __floor variants,
removing the inlines / macros for x86_64 (SSE4.1) and powerpc
(POWER5).

The redirection used to ensure that __ieee754_sqrt does still get
called when the compiler doesn't inline a built-in function expansion
is refactored so it can be applied to other functions; the refactoring
is arranged so it's not limited to unary functions either (it would be
reasonable to use this mechanism for copysign - removing the inline in
math_private_calls.h but also eliminating unnecessary local PLT entry
use in the cases (powerpc soft-float and e500v1, for IBM long double)
where copysign calls don't get inlined).

The point of this change is that more architectures can get floor
calls inlined where they weren't previously (AArch64, for example),
without needing special inline definitions in their math_private.h,
and existing such definitions in math_private.h headers can be
removed.

Note that it's possible that in some cases an inline may be used where
an IFUNC call was previously used - this is the case on x86_64, for
example.  I think the direct calls to floor are still appropriate; if
there's any significant performance cost from inline SSE2 floor
instead of an IFUNC call ending up with SSE4.1 floor, that indicates
that either the function should be doing something else that's faster
than using floor at all, or it should itself have IFUNC variants, or
that the compiler choice of inlining for generic tuning should change
to allow for the possibility that, by not inlining, an SSE4.1 IFUNC
might be called at runtime - but not that glibc should avoid calling
floor internally.  (After all, all the same considerations would apply
to any user program calling floor, where it might either be inlined or
left as an out-of-line call allowing for a possible IFUNC.)

Tested for x86_64, and with build-many-glibcs.py.

	* include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ &&
	__FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (MATH_REDIRECT):
	New macro.
	[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
	&& !NO_MATH_REDIRECT] (MATH_REDIRECT_LDBL): Likewise.
	[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
	&& !NO_MATH_REDIRECT] (MATH_REDIRECT_F128): Likewise.
	[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
	&& !NO_MATH_REDIRECT] (MATH_REDIRECT_UNARY_ARGS): Likewise.
	[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
	&& !NO_MATH_REDIRECT] (sqrt): Redirect using MATH_REDIRECT.
	[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
	&& !NO_MATH_REDIRECT] (floor): Likewise.
	* sysdeps/aarch64/fpu/s_floor.c: Define NO_MATH_REDIRECT before
	header inclusion.
	* sysdeps/aarch64/fpu/s_floorf.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_floor.c: Likewise.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c: Likewise.
	* sysdeps/ieee754/float128/s_floorf128.c: Likewise.
	* sysdeps/ieee754/flt-32/s_floorf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_floorl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_floorl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_floor_template.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf.c: Likewise.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_floor.c: Likewise.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf.c: Likewise.
	* sysdeps/riscv/rv64/rvd/s_floor.c: Likewise.
	* sysdeps/riscv/rvf/s_floorf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_floor.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_floorf.c: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_floor.c: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_floorf.c: Likewise.
	* sysdeps/powerpc/fpu/math_private.h [_ARCH_PWR5X] (__floor):
	Remove macro.
	[_ARCH_PWR5X] (__floorf): Likewise.
	* sysdeps/x86_64/fpu/math_private.h [__SSE4_1__] (__floor): Remove
	inline function.
	[__SSE4_1__] (__floorf): Likewise.
	* math/w_lgamma_main.c (LGFUNC (__lgamma)): Use floor functions
	instead of __floor variants.
	* math/w_lgamma_r_compat.c (__lgamma_r): Likewise.
	* math/w_lgammaf_main.c (LGFUNC (__lgammaf)): Likewise.
	* math/w_lgammaf_r_compat.c (__lgammaf_r): Likewise.
	* math/w_lgammal_main.c (LGFUNC (__lgammal)): Likewise.
	* math/w_lgammal_r_compat.c (__lgammal_r): Likewise.
	* math/w_tgamma_compat.c (__tgamma): Likewise.
	* math/w_tgamma_template.c (M_DECL_FUNC (__tgamma)): Likewise.
	* math/w_tgammaf_compat.c (__tgammaf): Likewise.
	* math/w_tgammal_compat.c (__tgammal): Likewise.
	* sysdeps/ieee754/dbl-64/e_lgamma_r.c (sin_pi): Likewise.
	* sysdeps/ieee754/dbl-64/k_rem_pio2.c (__kernel_rem_pio2):
	Likewise.
	* sysdeps/ieee754/dbl-64/lgamma_neg.c (__lgamma_neg): Likewise.
	* sysdeps/ieee754/flt-32/e_lgammaf_r.c (sin_pif): Likewise.
	* sysdeps/ieee754/flt-32/lgamma_negf.c (__lgamma_negf): Likewise.
	* sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r):
	Likewise.
	* sysdeps/ieee754/ldbl-128/e_powl.c (__ieee754_powl): Likewise.
	* sysdeps/ieee754/ldbl-128/lgamma_negl.c (__lgamma_negl):
	Likewise.
	* sysdeps/ieee754/ldbl-128/s_expm1l.c (__expm1l): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_lgammal_r.c (__ieee754_lgammal_r):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_powl.c (__ieee754_powl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/lgamma_negl.c (__lgamma_negl):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_expm1l.c (__expm1l): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_truncl.c (__truncl): Likewise.
	* sysdeps/ieee754/ldbl-96/e_lgammal_r.c (sin_pi): Likewise.
	* sysdeps/ieee754/ldbl-96/lgamma_negl.c (__lgamma_negl): Likewise.
	* sysdeps/powerpc/power5+/fpu/s_modf.c (__modf): Likewise.
	* sysdeps/powerpc/power5+/fpu/s_modff.c (__modff): Likewise.
2018-09-14 13:09:01 +00:00
Paul Pluzhnikov
a6e8926f8d [BZ #20271] Add newlines in __libc_fatal calls. 2018-08-31 18:04:32 -07:00
Joseph Myers
b5453d9f7a Remove sysdeps/sparc/sparc64/soft-fp directory.
As per <https://sourceware.org/ml/libc-alpha/2014-10/msg00369.html>,
there should not be separate sysdeps/<arch>/soft-fp directories when
those are used by all configurations that use sysdeps/<arch>, and,
more generally, should not be sysdeps/foo/Implies files pointing to a
subdirectory foo/bar.  This patch eliminates the
sysdeps/sparc/sparc64/soft-fp directory accordingly, merging its
contents into sysdeps/sparc/sparc64.  This completes removing the
unnecessary <arch>/soft-fp sysdeps directories.

sysdeps/sparc/sparc64/soft-fp/e_ilogbl.c is removed rather than moved.
It was not in fact used previously - the ldbl-128 version of
e_ilogbl.c was used instead - and moving it into sysdeps/sparc/sparc64
results in it being used, but causing a build failure because of
FP_DECL_EX declaring an unused variable (as I noted in
<https://sourceware.org/ml/libc-alpha/2013-10/msg00457.html> that file
doesn't appear to use FP_DECL_EX).  Given that the file was previously
unused and so presumably not tested recently, removing it is the safe
way to avoid this patch changing what actually gets built into glibc
(if this file should turn out more efficient than the ldbl-128
e_ilogbl.c, it can always be added back in future with the build
failure fixed).

Tested with build-many-glibcs.py that installed stripped shared
libraries for sparc configurations are unchanged by this patch.

	* sysdeps/sparc/sparc64/Implies: Remove sparc/sparc64/soft-fp.
	* sysdeps/sparc/sparc64/Makefile [$(subdir) = soft-fp]
	(sparc64-quad-routines): New variable.  Moved from ....
	[$(subdir) = soft-fp] (sysdep_routines): Add
	$(sparc64-quad-routines).  Moved from ....
	[$(subdir) = math] (CPPFLAGS): Add -I../soft-fp/.  Moved from ....
	* sysdeps/sparc/sparc64/soft-fp/Makefile: ... here.  Remove file.
	* sysdeps/sparc/sparc64/Versions (libc): Add GLIBC_2.2 symbols
	moved from ....
	* sysdeps/sparc/sparc64/soft-fp/Versions: ... here.  Remove file.
	* sysdeps/sparc/sparc64/soft-fp/e_ilogbl.c: Remove file.
	* sysdeps/sparc/sparc64/soft-fp/qp_add.c: Move to ....
	* sysdeps/sparc/sparc64/qp_add.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_cmp.c: Move to ....
	* sysdeps/sparc/sparc64/qp_cmp.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_cmpe.c: Move to ....
	* sysdeps/sparc/sparc64/qp_cmpe.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_div.c: Move to ....
	* sysdeps/sparc/sparc64/qp_div.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_dtoq.c: Move to ....
	* sysdeps/sparc/sparc64/qp_dtoq.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_feq.c: Move to ....
	* sysdeps/sparc/sparc64/qp_feq.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_fge.c: Move to ....
	* sysdeps/sparc/sparc64/qp_fge.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_fgt.c: Move to ....
	* sysdeps/sparc/sparc64/qp_fgt.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_fle.c: Move to ....
	* sysdeps/sparc/sparc64/qp_fle.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_flt.c: Move to ....
	* sysdeps/sparc/sparc64/qp_flt.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_fne.c: Move to ....
	* sysdeps/sparc/sparc64/qp_fne.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_itoq.c: Move to ....
	* sysdeps/sparc/sparc64/qp_itoq.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_mul.c: Move to ....
	* sysdeps/sparc/sparc64/qp_mul.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_neg.S: Move to ....
	* sysdeps/sparc/sparc64/qp_neg.S: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtod.c: Move to ....
	* sysdeps/sparc/sparc64/qp_qtod.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtoi.c: Move to ....
	* sysdeps/sparc/sparc64/qp_qtoi.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtos.c: Move to ....
	* sysdeps/sparc/sparc64/qp_qtos.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtoui.c: Move to ....
	* sysdeps/sparc/sparc64/qp_qtoui.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtoux.c: Move to ....
	* sysdeps/sparc/sparc64/qp_qtoux.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_qtox.c: Move to ....
	* sysdeps/sparc/sparc64/qp_qtox.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_sqrt.c: Move to ....
	* sysdeps/sparc/sparc64/qp_sqrt.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_stoq.c: Move to ....
	* sysdeps/sparc/sparc64/qp_stoq.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_sub.c: Move to ....
	* sysdeps/sparc/sparc64/qp_sub.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_uitoq.c: Move to ....
	* sysdeps/sparc/sparc64/qp_uitoq.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_util.c: Move to ....
	* sysdeps/sparc/sparc64/qp_util.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_uxtoq.c: Move to ....
	* sysdeps/sparc/sparc64/qp_uxtoq.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/qp_xtoq.c: Move to ....
	* sysdeps/sparc/sparc64/qp_xtoq.c: ... here.
	* sysdeps/sparc/sparc64/soft-fp/sfp-machine.h: Move to ....
	* sysdeps/sparc/sparc64/sfp-machine.h: ... here.
2018-05-25 20:00:51 +00:00
Maciej W. Rozycki
10a446ddcc elf: Unify symbol address run-time calculation [BZ #19818]
Wrap symbol address run-time calculation into a macro and use it
throughout, replacing inline calculations.

There are a couple of variants, most of them different in a functionally
insignificant way.  Most calculations are right following RESOLVE_MAP,
at which point either the map or the symbol returned can be checked for
validity as the macro sets either both or neither.  In some places both
the symbol and the map has to be checked however.

My initial implementation therefore always checked both, however that
resulted in code larger by as much as 0.3%, as many places know from
elsewhere that no check is needed.  I have decided the size growth was
unacceptable.

Having looked closer I realized that it's the map that is the culprit.
Therefore I have modified LOOKUP_VALUE_ADDRESS to accept an additional
boolean argument telling it to access the map without checking it for
validity.  This in turn has brought quite nice results, with new code
actually being smaller for i686, and MIPS o32, n32 and little-endian n64
targets, unchanged in size for x86-64 and, unusually, marginally larger
for big-endian MIPS n64, as follows:

i686:
   text    data     bss     dec     hex filename
 152255    4052     192  156499   26353 ld-2.27.9000-base.so
 152159    4052     192  156403   262f3 ld-2.27.9000-elf-symbol-value.so
MIPS/o32/el:
   text    data     bss     dec     hex filename
 142906    4396     260  147562   2406a ld-2.27.9000-base.so
 142890    4396     260  147546   2405a ld-2.27.9000-elf-symbol-value.so
MIPS/n32/el:
   text    data     bss     dec     hex filename
 142267    4404     260  146931   23df3 ld-2.27.9000-base.so
 142171    4404     260  146835   23d93 ld-2.27.9000-elf-symbol-value.so
MIPS/n64/el:
   text    data     bss     dec     hex filename
 149835    7376     408  157619   267b3 ld-2.27.9000-base.so
 149787    7376     408  157571   26783 ld-2.27.9000-elf-symbol-value.so
MIPS/o32/eb:
   text    data     bss     dec     hex filename
 142870    4396     260  147526   24046 ld-2.27.9000-base.so
 142854    4396     260  147510   24036 ld-2.27.9000-elf-symbol-value.so
MIPS/n32/eb:
   text    data     bss     dec     hex filename
 142019    4404     260  146683   23cfb ld-2.27.9000-base.so
 141923    4404     260  146587   23c9b ld-2.27.9000-elf-symbol-value.so
MIPS/n64/eb:
   text    data     bss     dec     hex filename
 149763    7376     408  157547   2676b ld-2.27.9000-base.so
 149779    7376     408  157563   2677b ld-2.27.9000-elf-symbol-value.so
x86-64:
   text    data     bss     dec     hex filename
 148462    6452     400  155314   25eb2 ld-2.27.9000-base.so
 148462    6452     400  155314   25eb2 ld-2.27.9000-elf-symbol-value.so

	[BZ #19818]
	* sysdeps/generic/ldsodefs.h (LOOKUP_VALUE_ADDRESS): Add `set'
	parameter.
	(SYMBOL_ADDRESS): New macro.
	[!ELF_FUNCTION_PTR_IS_SPECIAL] (DL_SYMBOL_ADDRESS): Use
	SYMBOL_ADDRESS for symbol address calculation.
	* elf/dl-runtime.c (_dl_fixup): Likewise.
	(_dl_profile_fixup): Likewise.
	* elf/dl-symaddr.c (_dl_symbol_address): Likewise.
	* elf/rtld.c (dl_main): Likewise.
	* sysdeps/aarch64/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/alpha/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/arm/dl-machine.h (elf_machine_rel): Likewise.
	(elf_machine_rela): Likewise.
	* sysdeps/hppa/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/hppa/dl-symaddr.c (_dl_symbol_address): Likewise.
	* sysdeps/i386/dl-machine.h (elf_machine_rel): Likewise.
	(elf_machine_rela): Likewise.
	* sysdeps/ia64/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/m68k/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/microblaze/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/mips/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC):
	Likewise.
	(elf_machine_reloc): Likewise.
	(elf_machine_got_rel): Likewise.
	* sysdeps/mips/dl-trampoline.c (__dl_runtime_resolve): Likewise.
	* sysdeps/nios2/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_rela):
	Likewise.
	* sysdeps/powerpc/powerpc64/dl-machine.h (elf_machine_rela):
	Likewise.
	* sysdeps/riscv/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/s390/s390-32/dl-machine.h (elf_machine_rela):
	Likewise.
	* sysdeps/s390/s390-64/dl-machine.h (elf_machine_rela):
	Likewise.
	* sysdeps/sh/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela):
	Likewise.
	* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela):
	Likewise.
	* sysdeps/tile/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/x86_64/dl-machine.h (elf_machine_rela): Likewise.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2018-04-04 23:09:37 +01:00
H.J. Lu
371b220f62 sparc: Check PIC instead of SHARED in start.S [BZ #22638]
Since start.o may be compiled as PIC, we should check PIC instead of
SHARED.

	[BZ #22638]
	* sysdeps/sparc/sparc32/start.S (_start): Check PIC instead of
	SHARED.
	* sysdeps/sparc/sparc64/start.S (_start): Likewise.
2018-02-05 05:46:56 -08:00
Joseph Myers
688903eb3e Update copyright dates with scripts/update-copyrights.
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
2018-01-01 00:32:25 +00:00
Patrick McGehearty
e6a1c5dc77 sparc: M7 optimized memset/bzero
Support added to identify Sparc M7/T7/S7/M8/T8 processor capability.
Performance tests run on Sparc S7 using new code and old niagara4 code.

Optimizations for memset also apply to bzero as they share code.

For memset/bzero, performance comparison with niagara4 code:
For memset nonzero data,
  256-1023 bytes - 60-90% gain (in cache); 5% gain (out of cache)
  1K+ bytes - 80-260% gain (in cache); 40-80% gain (out of cache)
For memset zero data (and bzero),
  256-1023 bytes - 80-120% gain (in cache), 0% gain (out of cache)
  1024+ bytes - 2-4x gain (in cache), 10-35% gain (out of cache)

Tested in sparcv9-*-* and sparc64-*-* targets in both multi and
non-multi arch configurations.

	Patrick McGehearty <patrick.mcgehearty@oracle.com>
	Adhemerval Zanella  <adhemerval.zanella@linaro.org>

	* sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile
	(sysdeps_routines): Add memset-niagara7.
	* sysdeps/sparc/sparc64/multiarch/Makefile (sysdes_rotuines):
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memset-niagara7.S: New
	file.
	* sysdeps/sparc/sparc64/multiarch/memset-niagara7.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add __bzero_niagara7 and __memset_niagara7.
	* sysdeps/sparc/sparc64/multiarch/ifunc-memset.h (IFUNC_SELECTOR):
	Add niagara7 option.
	* NEWS: Mention sparc m7 optimized memcpy, mempcpy, memmove, and
	memset.
2017-12-14 08:48:19 -02:00
Patrick McGehearty
1b6e07f8e0 sparc: M7 optimized memcpy/mempcpy/memmove
Support added to identify Sparc M7/T7/S7/M8/T8 processor capability.
Performance tests run on Sparc S7 using new code and old niagara4 code.

Optimizations for memcpy also apply to mempcpy and memmove
where they share code. Optimizations for memset also apply
to bzero as they share code.

For memcpy/mempcpy/memmove, performance comparison with niagara4 code:
Long word aligned data
  0-127 bytes - minimal changes
  128-1023 bytes - 7-30% gain
  1024+ bytes - 1-7% gain (in cache); 30-100% gain (out of cache)
Word aligned data
  0-127 bytes - 50%+ gain
  128-1023 bytes - 10-200% gain
  1024+ bytes - 0-15% gain (in cache); 5-50% gain (out of cache)
Unaligned data
  0-127 bytes - 0-70%+ gain
  128-447 bytes - 40-80%+ gain
  448-511 bytes - 1-3% loss
  512-4096 bytes - 2-3% gain (in cache); 0-20% gain (out of cache)
  4096+ bytes - ± 3% (in cache); 20-50% gain (out of cache)

Tested in sparcv9-*-* and sparc64-*-* targets in both multi and
non-multi arch configurations.

	Patrick McGehearty  <patrick.mcgehearty@oracle.com>
	Adhemerval Zanella  <adhemerval.zanella@linaro.org>

	* sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile
	(sysdeps_routines): Add memcpy-memmove-niagara7 and memmove-ultra1.
	* sysdeps/sparc/sparc64/multiarch/Makefile (sysdeps_routines):
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy-memmove-niagara7.S:
	New file.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memmove-ultra1.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/rtld-memmove.c: Likewise.
	* sysdeps/sparc/sparc64/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add __memcpy_niagara7, __mempcpy_niagara7,
	and __memmove_niagara7.
	* sysdeps/sparc/sparc64/multiarch/ifunc-memcpy.h (IFUNC_SELECTOR):
	Add niagara7 option.
	* sysdeps/sparc/sparc64/multiarch/memmove.c: New file.
	* sysdeps/sparc/sparc64/multiarch/ifunc-memmove.h: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memcpy-memmove-niagara7.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memmove-ultra1.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/rtld-memmove.c: Likewise.
2017-12-14 08:47:38 -02:00
Jose E. Marchesi
767a26d6a0 sparc: assembly version of memmove for ultra1+
Tested in sparcv9-*-* and sparc64-*-* targets in both non-multi-arch and
multi-arch configurations.

	* sysdeps/sparc/sparc32/sparcv9/memmove.S: New file.
	* sysdeps/sparc/sparc32/sparcv9/rtld-memmove.c: Likewise.
	* sysdeps/sparc/sparc64/memmove.S: Likewise.
	* sysdeps/sparc/sparc64/rtld-memmove.c: Likewise.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-12-14 08:47:09 -02:00
Adhemerval Zanella
2a14526bfa sparc: refactor cpu_relax to C
* sysdeps/sparc/sparc64/cpu_relax.c: New file.
	* sysdeps/sparc/sparc32/sparcv9/cpu_relax.c: Likewise.
	* sysdeps/sparc/sparc64/cpu_relax.S: Remove file.
	* sysdeps/sparc/sparc32/sparcv9/cpu_relax.S: Likewise.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-12-01 11:51:10 -02:00
Adhemerval Zanella
9e2279a0e9 sparc: refactor sparc64 __mpn_add_n selector to C
This patch refactors the sparc64 ifunc selector to a C implementation.
Also, the generic symbol is moved to its own implementation file
add_n-generic.S).

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines):
	Add add_n-generic.
	* sysdeps/sparc/sparc64/multiarch/add_n-generic.S: New file.
	* sysdeps/sparc/sparc64/multiarch/add_n.c: Likewise.
	* sysdeps/sparc/sparc64/multiarch/add_n.S: Remove file.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-30 14:10:28 -02:00
Adhemerval Zanella
75f37c71db sparc: refactor sparc64 __mpn_submul_1 selector to C
This patch refactors the sparc64 ifunc selector to a C implementation.
Also, the generic symbol is moved to its own implementation file
submul_1-generic.S).

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines):
	Add submul_1-generic.
	* sysdeps/sparc/sparc64/multiarch/submul_1-generic.S: New file.
	* sysdeps/sparc/sparc64/multiarch/submul_1.c: Likewise.
	* sysdeps/sparc/sparc64/multiarch/submul_1.S: Remove file.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-30 14:10:25 -02:00
Adhemerval Zanella
dda1d2e88b sparc: refactor sparc64 __mpn_addmul_1 selector to C
This patch refactors the sparc64 ifunc selector to a C implementation.
Also, the generic symbol is moved to its own implementation file
addmul_1-generic.S).

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines):
	Add addmul_1-generic.
	* sysdeps/sparc/sparc64/multiarch/addmul_1-generic.S: New file.
	* sysdeps/sparc/sparc64/multiarch/addmul_1.c: Likewise.
	* sysdeps/sparc/sparc64/multiarch/addmul_1.S: Remove file.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-30 14:10:20 -02:00
Adhemerval Zanella
b70cbbfcc8 sparc: refactor sparc64 __mpn_sub_n selector to C
This patch refactors the sparc64 ifunc selector to a C implementation.
Also, the generic symbol is moved to its own implementation file
sub_n-generic.S).

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines):
	Add sub_n-generic.
	* sysdeps/sparc/sparc64/multiarch/sub_n-generic.S: New file.
	* sysdeps/sparc/sparc64/multiarch/sub_n.c: Likewise.
	* sysdeps/sparc/sparc64/multiarch/sub_n.S: Remove file.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-30 14:10:16 -02:00
Adhemerval Zanella
023cade3b3 sparc: refactor sparc64 __mpn_mul_1 selector to C
This patch refactors the sparc64 ifunc selector to a C implementation.
Also, the generic symbol is moved to its own implementation file
mul_1-generic.S).

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines):
	Add mul_1-generic.
	* sysdeps/sparc/sparc64/multiarch/mul_1-generic.S: New file.
	* sysdeps/sparc/sparc64/multiarch/mul_1.c: Likewise.
	* sysdeps/sparc/sparc64/multiarch/mul_1.S: Remove file.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-30 14:10:12 -02:00
Joseph Myers
3e5efdbdbe Use libm_alias_float for sparc.
Continuing the preparation for additional _FloatN / _FloatNx function
aliases, this patch makes sparc libm function implementations use
libm_alias_float to define function aliases.

Tested with build-many-glibcs.py for all its sparc configurations that
installed stripped shared libraries are unchanged by the patch.

	* sysdeps/sparc/sparc32/fpu/s_copysignf.S: Include
	<libm-alias-float.h>.
	(copysignf): Define using libm_alias_float.
	* sysdeps/sparc/sparc32/fpu/s_fabsf.S: Include
	<libm-alias-float.h>.
	(fabsf): Define using libm_alias_float.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf.S:
	Include <libm-alias-float.h>.
	(copysignf): Define using libm_alias_float.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fabsf.S: Include
	<libm-alias-float.h>.
	(fabsf): Define using libm_alias_float.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdimf.c: Include
	<libm-alias-float.h>.
	(fdimf): Define using libm_alias_float.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fmaf.c: Include
	<libm-alias-float.h>.
	(fmaf): Define using libm_alias_float.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_llrintf.S: Include
	<libm-alias-float.h>.
	(llrintf): Define using libm_alias_float.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyintf.S:
	Include <libm-alias-float.h>.
	(nearbyintf): Define using libm_alias_float.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf.S: Include
	<libm-alias-float.h>.
	(rintf): Define using libm_alias_float.
	* sysdeps/sparc/sparc32/sparcv9/fpu/s_llrintf.S: Include
	<libm-alias-float.h>.
	(llrintf): Define using libm_alias_float.
	* sysdeps/sparc/sparc32/sparcv9/fpu/s_lrintf.S: Include
	<libm-alias-float.h>.
	(lrintf): Define using libm_alias_float.
	* sysdeps/sparc/sparc32/sparcv9/fpu/s_nearbyintf.S: Include
	<libm-alias-float.h>.
	(nearbyintf): Define using libm_alias_float.
	* sysdeps/sparc/sparc32/sparcv9/fpu/s_rintf.S: Include
	<libm-alias-float.h>.
	(rintf): Define using libm_alias_float.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_ceilf.c: Include
	<libm-alias-float.h>.
	(ceilf): Define using libm_alias_float.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_floorf.c: Include
	<libm-alias-float.h>.
	(floorf): Define using libm_alias_float.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_fmaf.c: Include
	<libm-alias-float.h>.
	(fmaf): Define using libm_alias_float.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_lrintf.c: Include
	<libm-alias-float.h>.
	(lrintf): Define using libm_alias_float.
	(llrintf): Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_nearbyintf.c: Include
	<libm-alias-float.h>.
	(nearbyintf): Define using libm_alias_float.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_rintf.c: Include
	<libm-alias-float.h>.
	(rintf): Define using libm_alias_float.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_truncf.c: Include
	<libm-alias-float.h>.
	(truncf): Define using libm_alias_float.
	* sysdeps/sparc/sparc64/fpu/s_copysignf.S: Include
	<libm-alias-float.h>.
	(copysignf): Define using libm_alias_float.
	* sysdeps/sparc/sparc64/fpu/s_fabsf.c: Include
	<libm-alias-float.h>.
	(fabsf): Define using libm_alias_float.
	* sysdeps/sparc/sparc64/fpu/s_lrintf.S: Include
	<libm-alias-float.h>.
	(lrintf): Define using libm_alias_float.
	(llrintf): Likewise.
	* sysdeps/sparc/sparc64/fpu/s_nearbyintf.S: Include
	<libm-alias-float.h>.
	(nearbyintf): Define using libm_alias_float.
	* sysdeps/sparc/sparc64/fpu/s_rintf.S: Include
	<libm-alias-float.h>.
	(rintf): Define using libm_alias_float.
2017-11-30 00:30:40 +00:00
Joseph Myers
875cd54855 Use libm_alias_double for sparc.
Continuing the preparation for additional _FloatN / _FloatNx function
aliases, this patch makes sparc libm function implementations use
libm_alias_double to define function aliases (with consequent
simplification where compat symbol handling is now done by those
macros rather than locally in architecture-specific code).

Tested with build-many-glibcs.py for all its sparc configurations that
installed stripped shared libraries are unchanged by the patch.

	* sysdeps/sparc/sparc32/fpu/s_copysign.S: Include
	<libm-alias-double.h>.
	(copysign): Define using libm_alias_double.
	* sysdeps/sparc/sparc32/fpu/s_fabs.S: Include
	<libm-alias-double.h>.
	(fabs): Define using libm_alias_double.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign.S:
	Include <libm-alias-double.h>.
	(copysign): Define using libm_alias_double.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fabs.S: Include
	<libm-alias-double.h>.
	(fabs): Define using libm_alias_double.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdim.c: Include
	<libm-alias-double.h>.
	(fdim): Define using libm_alias_double.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fma.c: Include
	<libm-alias-double.h>.
	(fma): Define using libm_alias_double.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_llrint.S: Include
	<libm-alias-double.h>.
	(llrint): Define using libm_alias_double.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_nearbyint.S:
	Include <libm-alias-double.h>.
	(nearbyint): Define using libm_alias_double.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint.S: Include
	<libm-alias-double.h>.
	(rint): Define using libm_alias_double.
	* sysdeps/sparc/sparc32/sparcv9/fpu/s_fabs.S: Include
	<libm-alias-double.h>.
	(fabs): Define using libm_alias_double.
	* sysdeps/sparc/sparc32/sparcv9/fpu/s_llrint.S: Include
	<libm-alias-double.h>.
	(llrint): Define using libm_alias_double.
	* sysdeps/sparc/sparc32/sparcv9/fpu/s_nearbyint.S: Include
	<libm-alias-double.h>.
	(nearbyint): Define using libm_alias_double.
	* sysdeps/sparc/sparc32/sparcv9/fpu/s_rint.S: Include
	<libm-alias-double.h>.
	(rint): Define using libm_alias_double.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_ceil.c: Include
	<libm-alias-double.h>.
	(ceil): Define using libm_alias_double.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_floor.c: Include
	<libm-alias-double.h>.
	(floor): Define using libm_alias_double.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_fma.c: Include
	<libm-alias-double.h>.
	(fma): Define using libm_alias_double.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_lrint.c: Include
	<libm-alias-double.h>.
	(lrint): Define using libm_alias_double.
	(llrint): Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_nearbyint.c: Include
	<libm-alias-double.h>.
	(nearbyint): Define using libm_alias_double.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_rint.c: Include
	<libm-alias-double.h>.
	(rint): Define using libm_alias_double.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_trunc.c: Include
	<libm-alias-double.h>.
	(trunc): Define using libm_alias_double.
	* sysdeps/sparc/sparc64/fpu/s_copysign.S: Include
	<libm-alias-double.h>.
	(copysign): Define using libm_alias_double.
	* sysdeps/sparc/sparc64/fpu/s_fabs.c: Include
	<libm-alias-double.h>.
	(fabs): Define using libm_alias_double.
	* sysdeps/sparc/sparc64/fpu/s_lrint.S: Include
	<libm-alias-double.h>.
	(lrint): Define using libm_alias_double.
	(llrint): Likewise.
	* sysdeps/sparc/sparc64/fpu/s_nearbyint.S: Include
	<libm-alias-double.h>.
	(nearbyint): Define using libm_alias_double.
	* sysdeps/sparc/sparc64/fpu/s_rint.S: Include
	<libm-alias-double.h>.
	(rint): Define using libm_alias_double.
2017-11-29 23:40:07 +00:00
Adhemerval Zanella
21bfcc3d24 sparc: refactor sparc64 rint{f} selector to C
This patch refactors the sparc64 ifunc selector to a C implementation.
Also, the generic symbol is moved to its own implementation file
s_rint{f}-generic.S).

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc64/fpu/multiarch/Makefile
	(libm-sysdep_routines): Add s_rintf-generic and s_rint-generic
	objects.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_rint-generic.S: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_rint.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_rintf-generic.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_rintf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_rint.S: Remove file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_rintf.S: Likewise.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-29 16:22:21 -02:00
Adhemerval Zanella
522228ddea sparc: refactor sparc64 lrint{f} selector to C
This patch refactors the sparc64 ifunc selector to a C implementation.
Also, the generic symbol is moved to its own implementation file
s_lrint{f}-generic.S).

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc64/fpu/multiarch/Makefile
	(libm-sysdep_routines): Add s_lrint-generic and s_lrint-generic
	objects.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_lrint-generic.S: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_lrint.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_lrintf-generic.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_lrintf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_lrint.S: Remove file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_lrintf.S: Likewise.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-29 16:22:21 -02:00
Adhemerval Zanella
2a6f4fab24 sparc: refactor sparc64 nearbyint{f} selector to C
This patch refactors the sparc64 ifunc selector to a C implementation.
Also, the generic symbol is moved to its own implementation file
s_nearbyint{f}-generic.S).

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc64/fpu/multiarch/Makefile
	(libm-sysdep_routines): Add s_nearbyint-generic and
	s_nearbyintf-generic objects.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_nearbyint-generic.S: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_nearbyint.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_nearbyintf-generic.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_nearbyintf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_nearbyint.S: Remove file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_nearbyintf.S: Likewise.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-29 16:22:20 -02:00
Adhemerval Zanella
712b5b83e1 sparc: refactor sparc64 finite{f} selector to C
This patch refactors the sparc64 ifunc selector to a C implementation.
Also, the generic symbol is moved to its own implementation file
s_finite{f}-generic.S).

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc64/fpu/multiarch/Makefile (sysdeps_calls):
	Add s_finitef-generic and s_finite-generic objects.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_finite-generic.S: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_finite.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_finitef-generic.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_finitef.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_finite.S: Remove file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_finitef.S: Remove file.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-29 16:22:20 -02:00
Adhemerval Zanella
c96d3335a3 sparc: refactor sparc64 isinf{f} selector to C
This patch refactors the sparc64 ifunc selector to a C implementation.
Also, the generic symbol is moved to its own implementation file
s_isinf{f}-generic.S).

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc64/fpu/multiarch/Makefile (sysdeps_calls):
	Add isinff-generic and s_isinf-generic objects.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_isinf-generic.S: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_isinf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_isinff-generic.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_isinff.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_isinf.S: Remove file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_isinff.S: Likewise.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-29 16:22:20 -02:00
Adhemerval Zanella
c6862a2371 sparc: refactor sparc64 isnan{f} selector to C
This patch refactors the sparc64 ifunc selector to a C implementation.
Also, the generic symbol is moved to its own implementation file
(s_isnan{f}-generic.S).

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc64/fpu/multiarch/Makefile (sysdeps_calls):
	Add s_isnanf-generic and s_isnan-generic objects.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_isnan-generic.S: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_isnanf-generic.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_isnan.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_isnanf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_isnan.S: Remove file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_isnanf.S: Likewise.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-29 16:22:15 -02:00
Adhemerval Zanella
1cbd7bfe65 sparc: refactor sparc64 signbit{f} selector to C
This patch refactors the sparc64 ifunc selector to a C implementation.
Also, the generic symbol is moved to its own implementation file
(s_signbit{f}-generic.S).

It also simplifies the multiarch Makefile by moving the common objects
from libm-sysdeps_routines and sysdeps_routines to a new sysdeps_call
rule and including it where required with the correct prefix.

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc-ifunc.h (sparc_libm_ifunc_redirected): New
	macro.
	* sysdeps/sparc/sparc64/fpu/multiarch/Makefile (sysdep_calls): New
	rule.
	(sysdep_routines): Use sysdep_calls as base.
	(libm-sysdep_routines): Add generic rule for symbols shared with
	libc.  Add s_signbit-generic and s_signbitf-generic objects.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.c: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbit-generic.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf-generic.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S: Remove file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf.S: Likewise.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-29 16:21:27 -02:00
Adhemerval Zanella
a55430cb0e sparc: Assume VIS3 support
This patch assumes VIS3 support by binutils, which is supported since
version 2.22.  This leads to some code simplification, mostly on
multiarch build where there is only one variant instead of previously
two (whether binutils supports VIS3 instructions or not).

For multiarch files where HAVE_AS_VIS3_SUPPORT was checked and
the default implementation was built with a different name, a new
file with (implementation with -generic appended) is added.

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* config.h.in (HAVE_AS_VIS3_SUPPORT): Remove check for VIS3 support.
	* sysdeps/sparc/configure.ac (HAVE_AS_VIS3_SUPPORT): Likewise.
	* sysdeps//sparc/sparc32/sparcv9/fpu/multiarch/s_fdim.c: Likewise.
	* sysdeps//sparc/sparc32/sparcv9/fpu/multiarch/s_fdimf.c: Likewise.
	* sysdeps//sparc/sparc32/sparcv9/fpu/multiarch/s_fma.c: Likewise.
	* sysdeps//sparc/sparc32/sparcv9/fpu/multiarch/s_fmaf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_ceil.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_ceilf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_floor.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_floorf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_fma.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_fmaf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_trunc.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_truncf.c: Likewise.
	* sysdeps/sparc/sparc-ifunc.h [!HAVE_AS_VIS3_SUPPORT]
	(SPARC_ASM_VIS3_IFUNC, SPARC_ASM_VIS3_VIS2_IFUNC): Remove macros.
	* sysdeps/sparc/sparc32/sparcv9/Makefile [$(have-as-vis3) != yes]
	(ASFLAGS.o, ASFLAGS-.os, ASFLAGS-.op, ASFLAGS-.oS): Remove rules.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile
	($(have-as-vis3) == yes): Remove conditional.
	* sysdeps/sparc/sparc64/Makefile (($(have-as-vis3) == yes)):
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdim-generic.c: New
	file.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fdimf-generic.c: New
	file.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fma-generic.c: New
	file.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fmaf-generic.c: New
	file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-generic.c: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_ceilf-generic.c: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_floor-generic.c: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_floorf-generic.c: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_fma-generic.c: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_fmaf-generic.c: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_trunc-generic.c: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_truncf-generic.c: New file.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-29 08:18:00 -02:00
Adhemerval Zanella
6905656404 sparc: Implement memset/bzero ifunc selection in C
This patch refactor the SPARC64 ifunc selector to a C implementation.
No functional change is expected, including ifunc resolution rules.

Checked on sparc64-linux-gnu, sparcv9-linux-gnu and x86_64-linux-gnu.

	* sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile
	[$(subdir) = string] (sysdep_routines): Add memset-ultra1.
	* sysdeps/sparc/sparc64/multiarch/Makefile [$(subdir) = string]
	(sysdep_routines): Add memset-ultra1.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memset-ultra1.S: New
	file.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memset.c: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/bzero.c: Likewise.
	* sysdeps/sparc/sparc64/multiarch/ifunc-memset.h: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memset-ultra1.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memset.c: Likewise.
	* sysdeps/sparc/sparc64/multiarch/bzero.c: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memset.S: Remove file.
	* sysdeps/sparc/sparc64/multiarch/memset.S: Likewise.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-28 08:53:15 -02:00
Adhemerval Zanella
88684de7a6 sparc: Implement memcpy/mempcpy ifunc selection in C
This patch refactor the SPARC64 ifunc selector to a C implementation.
The x86_64 implementation is used as default, which resulted in common
definitions (ifunc-init.h) used on both architectures.  No functional
change is expected, including ifunc resolution rules.

Checked on sparc64-linux-gnu, sparcv9-linux-gnu and x86_64-linux-gnu.

	* sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy-ultra1.S: New
	file.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy.c: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/mempcpy.c: Likewise.
	* sysdeps/sparc/sparc64/multiarch/ifunc-memcpy.h: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memcpy-ultra1.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memcpy.c: Likewise.
	* sysdeps/sparc/sparc64/multiarch/mempcpy.c: Likewise.
	* sysdeps/sparc/sparc-ifunc.h (sparc_libc_ifunc_redirected): New
	macro.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile
	[$(subdir) = string] (sysdep_routines): Add memcpy-ultra1.
	* sysdeps/sparc/sparc64/multiarch/Makefile [$(subdir) = string]
	(sysdep_routines): Add memcpy-ultra1.
	* sysdeps/sparc/sparc64/multiarch/memcpy.S: Remove file.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy.S: Likewise.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-28 08:53:15 -02:00
Joseph Myers
a90d1ac2d2 Remove unused sparc64/soft-fp libm function implementations.
sysdeps/sparc/sparc64/soft-fp has files s_frexpl.c, s_scalblnl.c and
s_scalbnl.c that are never used because the ldbl-128 versions always
come first in the sysdeps directory ordering.  This patch removes the
unused files.

Tested with build-many-glibcs.py that installed stripped shared
libraries are unchanged by this patch.

	* sysdeps/sparc/sparc64/soft-fp/s_frexpl.c: Remove file.
	* sysdeps/sparc/sparc64/soft-fp/s_scalblnl.c: Likewise.
	* sysdeps/sparc/sparc64/soft-fp/s_scalbnl.c: Likewise.
2017-11-22 21:11:00 +00:00
James Clarke
8644588807 Fix TLS relocations against local symbols on powerpc32, sparc32 and sparc64
Normally, TLS relocations against local symbols are optimised by the linker
to be absolute.  However, gold does not do this, and so it is possible to
end up with, for example, R_SPARC_TLS_DTPMOD64 referring to a local symbol.
Since sym_map is left as null in elf_machine_rela for the special local
symbol case, the relocation handling thinks it has nothing to do, and so
the module gets left as 0.  Havoc then ensues when the variable in question
is accessed.

Before this fix, the main_local_gold program would receive a SIGBUS on
sparc64, and SIGSEGV on powerpc32.  With this fix applied, that test now
passes like the rest of them.

	* sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_rela):
	Assign sym_map to be map for local symbols, as TLS relocations
	use sym_map to determine whether the symbol is defined and to
	extract the TLS information.
	* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela): Likewise.
	* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela): Likewise.
2017-10-13 16:14:16 -03:00
Joseph Myers
006e766437 Use libm_alias_ldouble for SPARC fabsl.
This patch makes SPARC fabsl implementation use libm_alias_ldouble, to
prepare them for also defining _Float128 function aliases.

Tested with build-many-glibcs.py that installed stripped shared
libraries (sparc64-linux-gnu and sparcv9-linux-gnu) are unchanged by
the patch.

	* sysdeps/sparc/sparc32/fpu/s_fabsl.c: Include
	<libm-alias-ldouble.h>.
	(fabsl): Define using libm_alias_ldouble.
	* sysdeps/sparc/sparc64/fpu/s_fabsl.c: Include
	<libm-alias-ldouble.h>.
	(fabsl): Define using libm_alias_ldouble.
2017-10-13 16:43:18 +00:00
Joseph Myers
831bbd5527 Remove SPARC sqrt wrappers (bug 21973).
This patch removes the SPARC-specific wrappers for sqrt and sqrtf.

These wrappers, by adding architecture-specific uses of _LIB_VERSION
and __kernel_standard, unnecessarily complicate cleanups of libm error
handling.  They also do not serve a useful optimization purpose.  GCC
knows about sqrt as a built-in function, and can generate direct calls
to a hardware square root instruction, either on its own, in the
-fno-math-errno case, or together with an inline check for the
argument being negative and a call to the out-of-line sqrt function
for error handling only in that case (and has been able to do so for a
long time).  Thus in practice the wrapper will only be called only in
the case of negative arguments, which is not a case it is useful to
optimize for.

The removal of the wrappers also uncovers, and fixes, an old bug.
32-bit SPARC libm used (checked with glibc 2.8 binaries) to have a
sqrtl compat symbol, version GLIBC_2.0, for old binaries when sqrtl
was an alias of sqrt (I don't have pre-glibc-2.4 binaries for SPARC to
hand to check for the sqrtl symbol in those).  This disappeared,
probably with:

commit 8847f03770
Author: David S. Miller <davem@davemloft.net>
Date:   Tue Feb 28 22:37:58 2012 -0800

    Add sparc optimized sqrt{,f}.

Removing the wrappers brings back the generic ldbl-opt logic for
creating such compat symbols, and so restores the compat symbol that
should be there.  This could of course also be fixed in the wrappers -
but as noted above, the wrappers are optimizing a case it's not useful
to optimize, so the bug of the missing compat symbol serves to
illustrate the risks involved with the extra complexity of
architecture-specific function versions where not needed.

Tested with build-many-glibcs.py.

	[BZ #21973]
	* sysdeps/sparc/sparc32/fpu/w_sqrt_compat.S: Remove file.
	* sysdeps/sparc/sparc32/fpu/w_sqrtf_compat.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrt_compat-vis3.S:
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrt_compat.S:
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrtf_compat-vis3.S:
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrtf_compat.S:
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/w_sqrt_compat.S : Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/w_sqrtf_compat.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/w_sqrt_compat.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/w_sqrtf_compat.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Add
	GLIBC_2.0 sqrtl symbol.
2017-08-21 17:46:34 +00:00
Joseph Myers
813378e9fe Obsolete matherr, _LIB_VERSION, libieee.a.
This patch obsoletes support for SVID libm error handling (the system
where a user-defined function matherr is called on a libm function
error; only enabled if you also set _LIB_VERSION = _SVID_ or
_LIB_VERSION = _XOPEN_) and the use of the _LIB_VERSION global
variable to control libm error handling.  matherr and _LIB_VERSION are
made into compat symbols, not supported for new ports or for static
linking.  The libieee.a object file (which sets _LIB_VERSION = _IEEE_,
so disabling errno setting for some functions) is also removed, and
all the related definitions are removed from math.h.

The manual already recommends against using matherr, and it's already
not supported for _Float128 functions (those use new wrappers that
don't support matherr, only errno) - this patch means that it becomes
possible to e.g. add sinf32 as an alias to sinf without that resulting
in undesired matherr support in sinf32 for existing glibc ports.
matherr support is not part of any standard supported by glibc (it was
removed in XPG4).

Because matherr is a function to be defined by the user, of course
user programs defining such a function will still continue to link; it
just quietly won't be used.  If they try to write to the library's
copy of _LIB_VERSION to enable SVID error handling, however, they will
get a link error (but if they define their own _LIB_VERSION variable,
they won't).

I expect the most likely case of build failures from this patch to be
programs with unconditional cargo-culted uses of -lieee (based on a
notion of "I want IEEE floating point", not any actual requirement for
that library).

Ideally, the new-port-or-static-linking case would use the new
wrappers used for _Float128.  This is not implemented in this patch,
because of the complication of architecture-specific (powerpc32 and
sparc) sqrt wrappers that use _LIB_VERSION and __kernel_standard
directly.  Thus, the old wrappers and __kernel_standard are still
built unconditionally, and _LIB_VERSION still exists in static libm.
But when the old wrappers and __kernel_standard are built in the
non-compat case, _LIB_VERSION and matherr are defined as macros so
code to support those features isn't actually built into static libm
or new ports' shared libm after this patch.

I intend to move to the new wrappers for static libm and new ports in
followup patches.  I believe the sqrt wrappers for powerpc32 and sparc
can reasonably be removed.  GCC already optimizes the normal case of
sqrt by generating code that uses a hardware instruction and only
calls the sqrt function if the argument was negative (if
-fno-math-errno, of course, it just uses the hardware instruction
without any check for negative argument being needed).  Thus those
wrappers will only actually get called in the case of negative
arguments, which is not a case it makes sense to optimize for.  But
even without removing the powerpc32 and sparc wrappers it should still
be possible to move to the new wrappers for static libm and new ports,
just without having those dubious architecture-specific optimizations
in static libm.

Everything said about matherr equally applies to matherrf and matherrl
(IA64-specific, undocumented), except that the structure of IA64 libm
means it won't be converted to using the new wrappers (it doesn't use
the old ones either, but its own error-handling code instead).

As with other tests of compat symbols, I expect test-matherr and
test-matherr-2 to need to become appropriately conditional once we
have a system for disabling such tests for ports too new to have the
relevant symbols.

Tested for x86_64 and x86, and with build-many-glibcs.py.

	* math/math.h [__USE_MISC] (_LIB_VERSION_TYPE): Remove.
	[__USE_MISC] (_LIB_VERSION): Likewise.
	[__USE_MISC] (struct exception): Likewise.
	[__USE_MISC] (matherr): Likewise.
	[__USE_MISC] (DOMAIN): Likewise.
	[__USE_MISC] (SING): Likewise.
	[__USE_MISC] (OVERFLOW): Likewise.
	[__USE_MISC] (UNDERFLOW): Likewise.
	[__USE_MISC] (TLOSS): Likewise.
	[__USE_MISC] (PLOSS): Likewise.
	[__USE_MISC] (HUGE): Likewise.
	[__USE_XOPEN] (MAXFLOAT): Define even if [__USE_MISC].
	* math/math-svid-compat.h: New file.
	* conform/linknamespace.pl (@whitelist): Remove matherr, matherrf
	and matherrl.
	* include/math.h [!_ISOMAC] (__matherr): Remove.
	* manual/arith.texi (FP Exceptions): Do not document matherr.
	* math/Makefile (tests): Change test-matherr to test-matherr-3.
	(tests-internal): New variable.
	(install-lib): Do not add libieee.a.
	(non-lib.a): Likewise.
	(extra-objs): Do not add libieee.a and ieee-math.o.
	(CPPFLAGS-s_lib_version.c): Remove variable.
	($(objpfx)libieee.a): Remove rule.
	($(addprefix $(objpfx), $(tests-internal)): Depend on $(libm).
	* math/ieee-math.c: Remove.
	* math/libm-test-support.c (matherr): Remove.
	* math/test-matherr.c: Use <support/test-driver.c>.  Add copyright
	and license notices.  Include <math-svid-compat.h> and
	<shlib-compat.h>.
	(matherr): Undefine as macro.  Use compat_symbol_reference.
	(_LIB_VERSION): Likewise.
	* math/test-matherr-2.c: New file.
	* math/test-matherr-3.c: Likewise.
	* sysdeps/generic/math_private.h (__kernel_standard): Remove
	declaration.
	(__kernel_standard_f): Likewise.
	(__kernel_standard_l): Likewise.
	* sysdeps/ieee754/s_lib_version.c: Do not include <math.h> or
	<math_private.h>.  Include <math-svid-compat.h>.
	(_LIB_VERSION): Undefine as macro.
	(_LIB_VERSION_INTERNAL): Always initialize to _POSIX_.  Define
	only if [LIBM_SVID_COMPAT || !defined SHARED].  If
	[LIBM_SVID_COMPAT], use compat_symbol.
	* sysdeps/ieee754/s_matherr.c: Do not include <math.h> or
	<math_private.h>.  Include <math-svid-compat.h>.
	(matherr): Undefine as macro.
	(__matherr): Define only if [LIBM_SVID_COMPAT].  Use
	compat_symbol.
	* sysdeps/ia64/fpu/libm_error.c: Include <math-svid-compat.h>.
	[_LIBC && LIBM_SVID_COMPAT] (matherrf): Use
	compat_symbol_reference.
	[_LIBC && LIBM_SVID_COMPAT] (matherrl): Likewise.
	[_LIBC && !LIBM_SVID_COMPAT] (matherrf): Define as macro.
	[_LIBC && !LIBM_SVID_COMPAT] (matherrl): Likewise.
	* sysdeps/ia64/fpu/libm_support.h: Include <math-svid-compat.h>.
	(MATHERR_D): Remove declaration.
	[!_LIBC] (_LIB_VERSION_TYPE): Likewise
	[!LIBM_BUILD] (_LIB_VERSIONIMF): Likewise.
	[LIBM_BUILD] (pmatherrf): Likewise.
	[LIBM_BUILD] (pmatherr): Likewise.
	[LIBM_BUILD] (pmatherrl): Likewise.
	(DOMAIN): Likewise.
	(SING): Likewise.
	(OVERFLOW): Likewise.
	(UNDERFLOW): Likewise.
	(TLOSS): Likewise.
	(PLOSS): Likewise.
	* sysdeps/ia64/fpu/s_matherrf.c: Include <math-svid-compat.h>.
	(__matherrf): Define only if [LIBM_SVID_COMPAT].  Use
	compat_symbol.
	* sysdeps/ia64/fpu/s_matherrl.c: Include <math-svid-compat.h>.
	(__matherrl): Define only if [LIBM_SVID_COMPAT].  Use
	compat_symbol.
	* math/lgamma-compat.h: Include <math-svid-compat.h>.
	* math/w_acos_compat.c: Likewise.
	* math/w_acosf_compat.c: Likewise.
	* math/w_acosh_compat.c: Likewise.
	* math/w_acoshf_compat.c: Likewise.
	* math/w_acoshl_compat.c: Likewise.
	* math/w_acosl_compat.c: Likewise.
	* math/w_asin_compat.c: Likewise.
	* math/w_asinf_compat.c: Likewise.
	* math/w_asinl_compat.c: Likewise.
	* math/w_atan2_compat.c: Likewise.
	* math/w_atan2f_compat.c: Likewise.
	* math/w_atan2l_compat.c: Likewise.
	* math/w_atanh_compat.c: Likewise.
	* math/w_atanhf_compat.c: Likewise.
	* math/w_atanhl_compat.c: Likewise.
	* math/w_cosh_compat.c: Likewise.
	* math/w_coshf_compat.c: Likewise.
	* math/w_coshl_compat.c: Likewise.
	* math/w_exp10_compat.c: Likewise.
	* math/w_exp10f_compat.c: Likewise.
	* math/w_exp10l_compat.c: Likewise.
	* math/w_exp2_compat.c: Likewise.
	* math/w_exp2f_compat.c: Likewise.
	* math/w_exp2l_compat.c: Likewise.
	* math/w_fmod_compat.c: Likewise.
	* math/w_fmodf_compat.c: Likewise.
	* math/w_fmodl_compat.c: Likewise.
	* math/w_hypot_compat.c: Likewise.
	* math/w_hypotf_compat.c: Likewise.
	* math/w_hypotl_compat.c: Likewise.
	* math/w_j0_compat.c: Likewise.
	* math/w_j0f_compat.c: Likewise.
	* math/w_j0l_compat.c: Likewise.
	* math/w_j1_compat.c: Likewise.
	* math/w_j1f_compat.c: Likewise.
	* math/w_j1l_compat.c: Likewise.
	* math/w_jn_compat.c: Likewise.
	* math/w_jnf_compat.c: Likewise.
	* math/w_jnl_compat.c: Likewise.
	* math/w_lgamma_main.c: Likewise.
	* math/w_lgamma_r_compat.c: Likewise.
	* math/w_lgammaf_main.c: Likewise.
	* math/w_lgammaf_r_compat.c: Likewise.
	* math/w_lgammal_main.c: Likewise.
	* math/w_lgammal_r_compat.c: Likewise.
	* math/w_log10_compat.c: Likewise.
	* math/w_log10f_compat.c: Likewise.
	* math/w_log10l_compat.c: Likewise.
	* math/w_log2_compat.c: Likewise.
	* math/w_log2f_compat.c: Likewise.
	* math/w_log2l_compat.c: Likewise.
	* math/w_log_compat.c: Likewise.
	* math/w_logf_compat.c: Likewise.
	* math/w_logl_compat.c: Likewise.
	* math/w_pow_compat.c: Likewise.
	* math/w_powf_compat.c: Likewise.
	* math/w_powl_compat.c: Likewise.
	* math/w_remainder_compat.c: Likewise.
	* math/w_remainderf_compat.c: Likewise.
	* math/w_remainderl_compat.c: Likewise.
	* math/w_scalb_compat.c: Likewise.
	* math/w_scalbf_compat.c: Likewise.
	* math/w_scalbl_compat.c: Likewise.
	* math/w_sinh_compat.c: Likewise.
	* math/w_sinhf_compat.c: Likewise.
	* math/w_sinhl_compat.c: Likewise.
	* math/w_sqrt_compat.c: Likewise.
	* math/w_sqrtf_compat.c: Likewise.
	* math/w_sqrtl_compat.c: Likewise.
	* math/w_tgamma_compat.c: Likewise.
	* math/w_tgammaf_compat.c: Likewise.
	* math/w_tgammal_compat.c: Likewise.
	* sysdeps/ieee754/dbl-64/w_exp_compat.c: Likewise.
	* sysdeps/ieee754/flt-32/w_expf_compat.c: Likewise.
	* sysdeps/ieee754/k_standard.c: Likewise.
	* sysdeps/ieee754/k_standardf.c: Likewise.
	* sysdeps/ieee754/k_standardl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/w_expl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/w_expl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-96/w_expl_compat.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt_compat.S: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf_compat.S: Likewise.
	* sysdeps/powerpc/powerpc32/power5/fpu/w_sqrt_compat.S: Likewise.
	* sysdeps/powerpc/powerpc32/power5/fpu/w_sqrtf_compat.S: Likewise.
	* sysdeps/sparc/sparc32/fpu/w_sqrt_compat.S: Likewise.
	* sysdeps/sparc/sparc32/fpu/w_sqrtf_compat.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrt_compat-vis3.S:
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrtf_compat-vis3.S:
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/w_sqrt_compat.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/w_sqrtf_compat.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/w_sqrt_compat.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/w_sqrtf_compat.S: Likewise.
2017-08-21 17:45:10 +00:00
Alan Modra
0572433b5b PowerPC64 ELFv2 PPC64_OPT_LOCALENTRY
ELFv2 functions with localentry:0 are those with a single entry point,
ie. global entry == local entry, that have no requirement on r2 or
r12 and guarantee r2 is unchanged on return.  Such an external
function can be called via the PLT without saving r2 or restoring it
on return, avoiding a common load-hit-store for small functions.

This patch implements the ld.so changes necessary for this
optimization.  ld.so needs to check that an optimized plt call
sequence is in fact calling a function implemented with localentry:0,
end emit a fatal error otherwise.

The elf/testobj6.c change is to stop "error while loading shared
libraries: expected localentry:0 `preload'" when running
elf/preloadtest, which we'd get otherwise.

	* elf/elf.h (PPC64_OPT_LOCALENTRY): Define.
	* sysdeps/alpha/dl-machine.h (elf_machine_fixup_plt): Add
	refsym and sym parameters.  Adjust callers.
	* sysdeps/aarch64/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/arm/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/generic/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/hppa/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/i386/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/ia64/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/m68k/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/microblaze/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/mips/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/nios2/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_fixup_plt):
	Likewise.
	* sysdeps/s390/s390-32/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/s390/s390-64/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/sh/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/tile/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/x86_64/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/powerpc/powerpc64/dl-machine.c (_dl_error_localentry): New.
	(_dl_reloc_overflow): Increase buffser size.  Formatting.
	* sysdeps/powerpc/powerpc64/dl-machine.h (ppc64_local_entry_offset):
	Delete reloc param, add refsym and sym.  Check optimized plt
	call stubs for localentry:0 functions.  Adjust callers.
	(elf_machine_fixup_plt, elf_machine_plt_conflict): Add refsym
	and sym parameters.  Adjust callers.
	(_dl_reloc_overflow): Move attribute.
	(_dl_error_localentry): Declare.
	* elf/dl-runtime.c (_dl_fixup): Save original sym.  Pass
	refsym and sym to elf_machine_fixup_plt.
	* elf/testobj6.c (preload): Call printf.
2017-06-14 10:47:25 +09:30
Stefan Liebler
12d2dd7060 Optimize generic spinlock code and use C11 like atomic macros.
This patch optimizes the generic spinlock code.

The type pthread_spinlock_t is a typedef to volatile int on all archs.
Passing a volatile pointer to the atomic macros which are not mapped to the
C11 atomic builtins can lead to extra stores and loads to stack if such
a macro creates a temporary variable by using "__typeof (*(mem)) tmp;".
Thus, those macros which are used by spinlock code - atomic_exchange_acquire,
atomic_load_relaxed, atomic_compare_exchange_weak - have to be adjusted.
According to the comment from  Szabolcs Nagy, the type of a cast expression is
unqualified (see http://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_423.htm):
__typeof ((__typeof (*(mem)) *(mem)) tmp;
Thus from spinlock perspective the variable tmp is of type int instead of
type volatile int.  This patch adjusts those macros in include/atomic.h.
With this construct GCC >= 5 omits the extra stores and loads.

The atomic macros are replaced by the C11 like atomic macros and thus
the code is aligned to it.  The pthread_spin_unlock implementation is now
using release memory order instead of sequentially consistent memory order.
The issue with passed volatile int pointers applies to the C11 like atomic
macros as well as the ones used before.

I've added a glibc_likely hint to the first atomic exchange in
pthread_spin_lock in order to return immediately to the caller if the lock is
free.  Without the hint, there is an additional jump if the lock is free.

I've added the atomic_spin_nop macro within the loop of plain reads.
The plain reads are also realized by C11 like atomic_load_relaxed macro.

The new define ATOMIC_EXCHANGE_USES_CAS determines if the first try to acquire
the spinlock in pthread_spin_lock or pthread_spin_trylock is an exchange
or a CAS.  This is defined in atomic-machine.h for all architectures.

The define SPIN_LOCK_READS_BETWEEN_CMPXCHG is now removed.
There is no technical reason for throwing in a CAS every now and then,
and so far we have no evidence that it can improve performance.
If that would be the case, we have to adjust other spin-waiting loops
elsewhere, too!  Using a CAS loop without plain reads is not a good idea
on many targets and wasn't used by one.  Thus there is now no option to
do so.

Architectures are now using the generic spinlock automatically if they
do not provide an own implementation.  Thus the pthread_spin_lock.c files
in sysdeps folder are deleted.

ChangeLog:

	* NEWS: Mention new spinlock implementation.
	* include/atomic.h:
	(__atomic_val_bysize): Cast type to omit volatile qualifier.
	(atomic_exchange_acq): Likewise.
	(atomic_load_relaxed): Likewise.
	(ATOMIC_EXCHANGE_USES_CAS): Check definition.
	* nptl/pthread_spin_init.c (pthread_spin_init):
	Use atomic_store_relaxed.
	* nptl/pthread_spin_lock.c (pthread_spin_lock):
	Use C11-like atomic macros.
	* nptl/pthread_spin_trylock.c (pthread_spin_trylock):
	Likewise.
	* nptl/pthread_spin_unlock.c (pthread_spin_unlock):
	Use atomic_store_release.
	* sysdeps/aarch64/nptl/pthread_spin_lock.c: Delete File.
	* sysdeps/arm/nptl/pthread_spin_lock.c: Likewise.
	* sysdeps/hppa/nptl/pthread_spin_lock.c: Likewise.
	* sysdeps/m68k/nptl/pthread_spin_lock.c: Likewise.
	* sysdeps/microblaze/nptl/pthread_spin_lock.c: Likewise.
	* sysdeps/mips/nptl/pthread_spin_lock.c: Likewise.
	* sysdeps/nios2/nptl/pthread_spin_lock.c: Likewise.
	* sysdeps/aarch64/atomic-machine.h (ATOMIC_EXCHANGE_USES_CAS): Define.
	* sysdeps/alpha/atomic-machine.h: Likewise.
	* sysdeps/arm/atomic-machine.h: Likewise.
	* sysdeps/i386/atomic-machine.h: Likewise.
	* sysdeps/ia64/atomic-machine.h: Likewise.
	* sysdeps/m68k/coldfire/atomic-machine.h: Likewise.
	* sysdeps/m68k/m680x0/m68020/atomic-machine.h: Likewise.
	* sysdeps/microblaze/atomic-machine.h: Likewise.
	* sysdeps/mips/atomic-machine.h: Likewise.
	* sysdeps/powerpc/powerpc32/atomic-machine.h: Likewise.
	* sysdeps/powerpc/powerpc64/atomic-machine.h: Likewise.
	* sysdeps/s390/atomic-machine.h: Likewise.
	* sysdeps/sparc/sparc32/atomic-machine.h: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/atomic-machine.h: Likewise.
	* sysdeps/sparc/sparc64/atomic-machine.h: Likewise.
	* sysdeps/tile/tilegx/atomic-machine.h: Likewise.
	* sysdeps/tile/tilepro/atomic-machine.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/atomic-machine.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/atomic-machine.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/atomic-machine.h: Likewise.
	* sysdeps/x86_64/atomic-machine.h: Likewise.
2017-06-06 09:41:56 +02:00
Joseph Myers
e1d6e08dd6 Remove useless SPARC signbit aliases.
The SPARC implementations of __signbit* functions have aliases
signbit, signbitf, signbitl.  These are useless, as they aren't
exported from the shared libraries (only the __signbit* functions are
exported, to be used by the type-generic signbit macro with older
compilers).  This patch removes the useless aliases.

Tested (compilation only) with build-many-glibcs.py for
sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc32/fpu/s_signbit.S (signbit): Remove alias.
	(signbitf): Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S (signbit):
	Likewise.
	(signbitl): Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf.S (signbitf):
	Likewise.
	* sysdeps/sparc/sparc64/fpu/s_signbit.S (signbit): Likewise.
	(signbitl): Likewise.
	* sysdeps/sparc/sparc64/fpu/s_signbitf.S (signbitf): Likewise.
2017-05-12 16:37:12 +00:00
Vladimir Mezentsev
b3d9c9a20c sparc: handle R_SPARC_DISP64 and R_SPARC_REGISTER relocs
The Studio compiler generates relocation types which are not supported
in glibc. Handle these relocs.

Tested in sparc64-linux-gnu. No regressions.

	BZ #21179]
	* sysdeps/sparc/sparc64/dl-machine.h: Handle R_SPARC_DISP64 and
	R_SPARC_REGISTER relocations.
2017-05-02 16:57:31 -03:00
Joseph Myers
19641dbd61 Fix sparc64 bits/setjmp.h namespace (bug 21261).
sysdeps/unix/sysv/linux/sparc/bits/setjmp.h defines 64-bit __jmp_buf
with a load of identifiers that are not part of any standard
namespace, resulting in conform/ tests failing.  This patch fixes this
by moving those identifiers to the implementation namespace, so
enabling the conform/ tests to pass for sparc64.

Tested (compilation only) for sparc64 with build-many-glibcs.py.

	[BZ #21261]
	* sysdeps/unix/sysv/linux/sparc/bits/setjmp.h
	[__WORDSIZE == 64 && !_ASM] (__sparc64_jmp_buf): Use reserved
	names for all fields.
	* sysdeps/sparc/sparc64/jmpbuf-unwind.h (_JMPBUF_UNWINDS): Update
	for jmp_buf field renaming.
	(_JMPBUF_UNWINDS_ADJ): Likewise.
2017-03-18 00:17:25 +00:00
David S. Miller
33d7e138ca sparc: Remove optimized math routines which cause testsuite failures.
famx{,f}/fmin{,f} and 32-bit lrint cause math testsuite failures
either because they generate incorrect results or they fail to signal
the proper exceptions.

	* sysdeps/sparc/sparc64/fpu/multiarch/s_fmax-vis3.S: Remove file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_fmax.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_fmaxf-vis3.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_fmaxf.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_fmin-vis3.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_fmin.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_fminf-vis3.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_fminf.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/Makefile
	(libm-sysdep_routines): Update.
	* sysdeps/sparc/sparc32/sparcv9/fpu/s_fmax.S: Remove file.
	* sysdeps/sparc/sparc32/sparcv9/fpu/s_fmaxf.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/s_fmin.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/s_fminf.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/s_lrint.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/s_fmax.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/s_fmaxf.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/s_fmin.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/s_fminf.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fmax-vis3.S:
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fmax.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fmaxf-vis3.S:
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fmaxf.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fmin-vis3.S:
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fmin.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fminf-vis3.S:
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fminf.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile
	(libm-sysdep_routines): Update.
2017-02-03 17:55:25 -08:00
Gabriel F. T. Gomes
f67d78192c Move wrappers to libm-compat-calls-auto
This commit moves one step towards the deprecation of wrappers that
use _LIB_VERSION / matherr / __kernel_standard functionality, by
adding the suffix '_compat' to their filenames and adjusting Makefiles
and #includes accordingly.

New template wrappers that do not use such functionality will be added
by future patches and will be first used by the float128 wrappers.
2017-01-04 16:25:04 -02:00