This patch moves little endian specific POWER9 optimization files to
sysdeps/powerpc/powerpc64/le and creates POWER9 ifunc functions
only for little endian.
This patch changes longjmp to always restore the TOC pointer (r2 register)
to the caller frame on powerpc64 and powerpc64le. This is related to bug
21895 that reports a situation where you have a static longjmp to a
shared object file.
[BZ #21895]
* sysdeps/powerpc/powerpc64/__longjmp-common.S: Remove condition code for
restoring r2 in longjmp.
* sysdeps/powerpc/powerpc64/Makefile: Added tst-setjmp-bug21895-static to
test list.
Added rules to build test tst-setjmp-bug21895-static.
Added module setjmp-bug21895 and rules to build a shared object from it.
* sysdeps/powerpc/powerpc64/setjmp-bug21895.c: New test file.
* sysdeps/powerpc/powerpc64/tst-setjmp-bug21895-static.c: New test file.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
My recent nan-sign tests fail to build for powerpc64le with GCC 8
because of the special compile / link options needed there for any
test using _Float128. This patch arranges for these tests to be
handled on powerpc64le similarly to other such tests.
Tested with build-many-glibcs.py for powerpc64le.
[BZ #23303]
* sysdeps/powerpc/powerpc64/le/Makefile
(CFLAGS-tst-strtod-nan-sign.c): Add -mfloat128.
(CFLAGS-tst-wcstod-nan-sign.c): Likewise.
(gnulib-tests): Also add $(f128-loader-link) for
tst-strtod-nan-sign abd tst-wcstod-nan-sign.
_init and _fini are special functions provided by glibc for linker to
define DT_INIT and DT_FINI in executable and shared library. They
should never be put in dynamic symbol table. This patch marks them as
hidden to remove them from dynamic symbol table.
Tested with build-many-glibcs.py.
[BZ #23145]
* elf/Makefile (tests-special): Add $(objpfx)check-initfini.out.
($(all-built-dso:=.dynsym): New target.
(common-generated): Add $(all-built-dso:$(common-objpfx)%=%.dynsym).
($(objpfx)check-initfini.out): New target.
(generated): Add check-initfini.out.
* scripts/check-initfini.awk: New file.
* sysdeps/aarch64/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/alpha/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/arm/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/hppa/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/i386/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/ia64/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/m68k/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/microblaze/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/mips/mips32/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/mips/mips64/n32/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/mips/mips64/n64/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/nios2/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/powerpc/powerpc32/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/powerpc/powerpc64/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/s390/s390-32/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/s390/s390-64/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/sh/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/sparc/crti.S (_init): Mark as hidden.
(_fini): Likewise.
* sysdeps/x86_64/crti.S (_init): Mark as hidden.
(_fini): Likewise.
When building with -mlong-double-128 or -mabi=ibmlongdouble, TFtype
represents the IBM 128-bit extended floating point type, while KFtype
represents the IEEE 128-bit floating point type.
The soft float implementation of e_sqrtf128 had to redefine TFtype and
TF in order to workaround this issue. However, this behavior changes
when -mabi=ieeelongdouble is used and the macros are not necessary.
* sysdeps/powerpc/powerpc64/le/fpu/e_sqrtf128.c
[__HAVE_FLOAT128_UNLIKE_LDBL] (TFtype, TF): Restrict TFtype
and TF redirection to KFtype and KF only when the default
long double type is not the IEEE 128-bit floating point type.
Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
This patch creates ifunc for sqrtf128() to make use of new xssqrtqp
instruction for POWER9 when --enable-multi-arch and --with-cpu=power8
options are used on power9 system. This is achieved by explicitly
adding -mcpu=power9 flag for sqrtf128-power9.
Currently, powerpc, powerpc64, and powerpc64le imply the same set of
subdirectories from sysdeps/ieee754: flt-32, dbl-64, ldbl-128ibm, and
ldbl-opt. In preparation for the transition of the long double format -
from IBM Extended Precision to IEEE 754 128-bits floating-point - on
powerpc64le, this patch splits the shared Implies file into three
separate files (one for each of the powerpc architectures), without
changing their contents. Future patches will modify powerpc64le.
* sysdeps/powerpc/Implies: Removed. Previous contents copied to...
* sysdeps/powerpc/powerpc32/Implies-after: ... here.
* sysdeps/powerpc/powerpc64/be/Implies-after: ... here.
* sysdeps/powerpc/powerpc64/le/Implies-before: ... and here.
The creation of the divergent sysdeps directory for powerpc64le
commit 2f7f3cd8cd
Author: Paul E. Murphy <murphyp@linux.vnet.ibm.com>
Date: Fri Jul 15 18:04:40 2016 -0500
powerpc64le: Create divergent sysdep directory for powerpc64le.
allowed float128 to be enabled for powerpc64le (little-endian) and not
for powerpc64 (big-endian). Since the only intended difference between
them was the presence or absence of the float128 interface, the sysdeps
directory for powerpc64le explicitly reused the files from powerpc64
(through the use of Implies files).
Although this works, it also means that files under the powerpc64
directory might be preferred over files under powerpc64le. For
instance, on a build for powerpc64le with target set to power9, a file
from powerpc64/power5 might get built, even though a file with the same
name exists in powerpc64le/power8. That happens because the processor
hierarchy was only defined in the sysdeps directory for powerpc64 (and
borrowed by powerpc64le).
This patch fixes this behavior, by creating new subdirectories under
powerpc64 (i.e.: powerpc64/be and powerpc64/le) and creating new Implies
files to provide the hierarchy of processors for powerpc64 and
powerpc64le separately. These changes have no effect on installed,
stripped binaries (which remain unchanged).
Tested that installed stripped binaries are unchanged and that there are
no regressions on powerpc64 and powerpc64le.
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>
The sysdeps/ieee754/ldbl-opt version of math_ldbl_opt.h includes
math.h and math_private.h, despite not having any need for those
headers itself; the sysdeps/generic version doesn't. About 20 files
are relying on math_ldbl_opt.h to include math.h and/or math_private.h
for them, even though none of them necessarily used on a platform that
needs ldbl-opt support.
* sysdeps/ieee754/ldbl-opt/math_ldbl_opt.h: Don't include
math.h or math_private.h.
* sysdeps/alpha/fpu/s_isnan.c
* sysdeps/ieee754/ldbl-128ibm/s_ceill.c
* sysdeps/ieee754/ldbl-128ibm/s_floorl.c
* sysdeps/ieee754/ldbl-128ibm/s_llrintl.c
* sysdeps/ieee754/ldbl-128ibm/s_llroundl.c
* sysdeps/ieee754/ldbl-128ibm/s_lrintl.c
* sysdeps/ieee754/ldbl-128ibm/s_lroundl.c
* sysdeps/ieee754/ldbl-128ibm/s_rintl.c
* sysdeps/ieee754/ldbl-128ibm/s_roundl.c
* sysdeps/ieee754/ldbl-128ibm/s_truncl.c
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/e_hypot.c
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/e_hypotf.c:
* sysdeps/powerpc/powerpc64/fpu/multiarch/e_expf.c
* sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypot.c
* sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypotf.c:
Include math_private.h.
* sysdeps/ieee754/ldbl-64-128/s_finitel.c
* sysdeps/ieee754/ldbl-64-128/s_fpclassifyl.c
* sysdeps/ieee754/ldbl-64-128/s_isinfl.c
* sysdeps/ieee754/ldbl-64-128/s_isnanl.c
* sysdeps/ieee754/ldbl-64-128/s_signbitl.c
* sysdeps/powerpc/power7/fpu/s_logb.c:
Include math.h and math_private.h.
The tunables framework needs to execute syscall early in process
initialization, before the TCB is available for consumption. This
behavior conflicts with powerpc{|64|64le}'s lock elision code, that
checks the TCB before trying to abort transactions immediately before
executing a syscall.
This patch adds a powerpc-specific implementation of __access_noerrno
that does not abort transactions before the executing syscall.
Tested on powerpc{|64|64le}.
[BZ #22685]
* sysdeps/powerpc/powerpc32/sysdep.h (ABORT_TRANSACTION_IMPL): Renamed
from ABORT_TRANSACTION.
(ABORT_TRANSACTION): Redirect to ABORT_TRANSACTION_IMPL.
* sysdeps/powerpc/powerpc64/sysdep.h (ABORT_TRANSACTION,
ABORT_TRANSACTION_IMPL): Likewise.
* sysdeps/unix/sysv/linux/powerpc/not-errno.h: New file. Reuse
Linux code, but remove the code that aborts transactions.
Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
The function _itoa_word() writes characters from the higher address to
the lower address, requiring the destination string to reserve that size
before calling it.
* sysdeps/powerpc/powerpc64/dl-machine.c (_dl_reloc_overflow):
Reserve 16 chars to reloc_addr before calling _itoa_word.
Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
This patch makes use of vectors for aligned inputs. Improvements
upto 30% seen for larger aligned inputs.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
On POWER8, unaligned memory accesses to cached memory has little impact
on performance as opposed to its ancestors.
It is disabled by default and will only be available when the tunable
glibc.tune.cached_memopt is set to 1.
__memcpy_power8_cached __memcpy_power7
============================================================
max-size=4096: 33325.70 ( 12.65%) 38153.00
max-size=8192: 32878.20 ( 11.17%) 37012.30
max-size=16384: 33782.20 ( 11.61%) 38219.20
max-size=32768: 33296.20 ( 11.30%) 37538.30
max-size=65536: 33765.60 ( 10.53%) 37738.40
* manual/tunables.texi (Hardware Capability Tunables): Document
glibc.tune.cached_memopt.
* sysdeps/powerpc/cpu-features.c: New file.
* sysdeps/powerpc/cpu-features.h: New file.
* sysdeps/powerpc/dl-procinfo.c [!IS_IN(ldconfig)]: Add
_dl_powerpc_cpu_features.
* sysdeps/powerpc/dl-tunables.list: New file.
* sysdeps/powerpc/ldsodefs.h: Include cpu-features.h.
* sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h
(INIT_ARCH): Initialize use_aligned_memopt.
* sysdeps/powerpc/powerpc64/dl-machine.h [defined(SHARED &&
IS_IN(rtld))]: Restrict dl_platform_init availability and
initialize CPU features used by tunables.
* sysdeps/powerpc/powerpc64/multiarch/Makefile (sysdep_routines):
Add memcpy-power8-cached.
* sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c: Add
__memcpy_power8_cached.
* sysdeps/powerpc/powerpc64/multiarch/memcpy.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memcpy-power8-cached.S:
New file.
Reviewed-by: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
This patch adds several new tunables to control the behavior of
elision on supported platforms[1]. Since elision now depends
on tunables, we should always *compile* with elision enabled,
and leave the code disabled, but available for runtime
selection. This gives us *much* better compile-time testing of
the existing code to avoid bit-rot[2].
Tested on ppc, ppc64, ppc64le, s390x and x86_64.
[1] This part of the patch was initially proposed by
Paul Murphy but was "staled" because the framework have changed
since the patch was originally proposed:
https://patchwork.sourceware.org/patch/10342/
[2] This part of the patch was inititally proposed as a RFC by
Carlos O'Donnell. Make sense to me integrate this on the patch:
https://sourceware.org/ml/libc-alpha/2017-05/msg00335.html
* elf/dl-tunables.list: Add elision parameters.
* manual/tunables.texi: Add entries about elision tunable.
* sysdeps/unix/sysv/linux/powerpc/elision-conf.c:
Add callback functions to dynamically enable/disable elision.
Add multiple callbacks functions to set elision parameters.
Deleted __libc_enable_secure check.
* sysdeps/unix/sysv/linux/s390/elision-conf.c: Likewise.
* sysdeps/unix/sysv/linux/x86/elision-conf.c: Likewise.
* configure: Regenerated.
* configure.ac: Option enable_lock_elision was deleted.
* config.h.in: ENABLE_LOCK_ELISION flag was deleted.
* config.make.in: Remove references to enable_lock_elision.
* manual/install.texi: Elision configure option was removed.
* INSTALL: Regenerated to remove enable_lock_elision.
* nptl/Makefile:
Disable elision so it can verify error case for destroying a mutex.
* sysdeps/powerpc/nptl/elide.h:
Cleanup ENABLE_LOCK_ELISION check.
Deleted macros for the case when ENABLE_LOCK_ELISION was not defined.
* sysdeps/s390/configure: Regenerated.
* sysdeps/s390/configure.ac: Remove references to enable_lock_elision..
* nptl/tst-mutex8.c:
Deleted all #ifndef ENABLE_LOCK_ELISION from the test.
* sysdeps/powerpc/powerpc32/sysdep.h:
Deleted all ENABLE_LOCK_ELISION checks.
* sysdeps/powerpc/powerpc64/sysdep.h: Likewise.
* sysdeps/powerpc/sysdep.h: Likewise.
* sysdeps/s390/nptl/bits/pthreadtypes-arch.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/force-elision.h: Likewise.
* sysdeps/unix/sysv/linux/s390/elision-conf.h: Likewise.
* sysdeps/unix/sysv/linux/s390/force-elision.h: Likewise.
* sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/s390/Makefile: Remove references to
enable-lock-elision.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
Continuing the preparation for additional _FloatN / _FloatNx function
aliases, this patch makes powerpc libm function implementations use
libm_alias_float to define function aliases.
Tested with build-many-glibcs.py that installed stripped shared
libraries are unchanged for all its hard-float powerpc configurations.
* sysdeps/powerpc/fpu/s_cosf.c: Include <libm-alias-float.h>.
(cosf): Define using libm_alias_float.
* sysdeps/powerpc/fpu/s_fabs.S: Include <libm-alias-float.h>.
(fabsf): Define using libm_alias_float.
* sysdeps/powerpc/fpu/s_fmaf.S: Include <libm-alias-float.h>.
(fmaf): Define using libm_alias_float.
* sysdeps/powerpc/fpu/s_rintf.c: Include <libm-alias-float.h>.
(rintf): Define using libm_alias_float.
* sysdeps/powerpc/fpu/s_sinf.c: Include <libm-alias-float.h>.
(sinf): Define using libm_alias_float.
* sysdeps/powerpc/power5+/fpu/s_modff.c: Include
<libm-alias-float.h>.
(modff): Define using libm_alias_float.
* sysdeps/powerpc/power7/fpu/s_logbf.c: Include
<libm-alias-float.h>.
(logbf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_ceilf.S: Include
<libm-alias-float.h>.
(ceilf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_copysign.S: Include
<libm-alias-float.h>.
(copysignf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_floorf.S: Include
<libm-alias-float.h>.
(floorf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_llrintf.c: Include
<libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_llroundf.c: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_lrint.S: Include
<libm-alias-float.h>.
(lrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_lround.S: Include
<libm-alias-float.h>.
(lroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_nearbyintf.S: Include
<libm-alias-float.h>.
(nearbyintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_rintf.S: Include
<libm-alias-float.h>.
(rintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_roundf.S: Include
<libm-alias-float.h>.
(roundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_truncf.S: Include
<libm-alias-float.h>.
(truncf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf.c:
Include <libm-alias-float.h>.
(ceilf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysignf.c:
Include <libm-alias-float.h>.
(copysignf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf.c:
Include <libm-alias-float.h>.
(floorf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llrintf.c:
Include <libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llroundf.c:
Include <libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf.c:
Include <libm-alias-float.h>.
(logbf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lrintf.c:
Include <libm-alias-float.h>.
(lrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lroundf.c:
Include <libm-alias-float.h>.
(lroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_modff.c:
Include <libm-alias-float.h>.
(modff): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_roundf.c:
Include <libm-alias-float.h>.
(roundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_truncf.c:
Include <libm-alias-float.h>.
(truncf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llrintf.S: Include
<libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_ceilf.S: Include
<libm-alias-float.h>.
(ceilf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_floorf.S: Include
<libm-alias-float.h>.
(floorf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_llround.S: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_lround.S: Include
<libm-alias-float.h>.
(lroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_roundf.S: Include
<libm-alias-float.h>.
(roundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_truncf.S: Include
<libm-alias-float.h>.
(truncf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S: Include
<libm-alias-float.h>.
(copysignf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power6/fpu/s_llrintf.S: Include
<libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power6/fpu/s_llround.S: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power6x/fpu/s_lrint.S: Include
<libm-alias-float.h>.
(lrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power6x/fpu/s_lround.S: Include
<libm-alias-float.h>.
(lroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceilf.c: Include
<libm-alias-float.h>.
(ceilf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c: Include
<libm-alias-float.h>.
(copysignf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_cosf.c: Include
<libm-alias-float.h>.
(cosf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf.c: Include
<libm-alias-float.h>.
(floorf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_llrintf.c: Include
<libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_llroundf.c: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbf.c: Include
<libm-alias-float.h>.
(logbf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_modff.c: Include
<libm-alias-float.h>.
(modff): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_roundf.c: Include
<libm-alias-float.h>.
(roundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_sinf.c: Include
<libm-alias-float.h>.
(sinf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_truncf.c: Include
<libm-alias-float.h>.
(truncf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_ceilf.S: Include
<libm-alias-float.h>.
(ceilf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Include
<libm-alias-float.h>.
(copysignf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_floorf.S: Include
<libm-alias-float.h>.
(floorf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_llrint.S: Include
<libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_llroundf.S: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_nearbyintf.S: Include
<libm-alias-float.h>.
(nearbyintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_rintf.S: Include
<libm-alias-float.h>.
(rintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_roundf.S: Include
<libm-alias-float.h>.
(roundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_truncf.S: Include
<libm-alias-float.h>.
(truncf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_ceilf.S: Include
<libm-alias-float.h>.
(ceilf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_floorf.S: Include
<libm-alias-float.h>.
(floorf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_llround.S: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_roundf.S: Include
<libm-alias-float.h>.
(roundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_truncf.S: Include
<libm-alias-float.h>.
(truncf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S: Include
<libm-alias-float.h>.
(copysignf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_llrint.S: Include
<libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_llround.S: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power8/fpu/s_cosf.S: Include
<libm-alias-float.h>.
(cosf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power8/fpu/s_llrint.S: Include
<libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power8/fpu/s_llround.S: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power8/fpu/s_sinf.S: Include
<libm-alias-float.h>.
(sinf): Define using libm_alias_float.
Continuing the preparation for additional _FloatN / _FloatNx function
aliases, this patch makes the remaining double powerpc functions use
libm_alias_double to define function aliases (with consequent removal
of the need for local compat symbol handling). Previous cleanups
avoid this patch changing installed stripped shared libraries for any
build-many-glibcs.py configuration (there are still some functions in
this patch for which the order of double and float aliases changes
within an individual source file, but in this case this doesn't result
in changes to the final library).
Tested with build-many-glibcs.py that installed stripped shared
libraries are unchanged for all its hard-float powerpc configurations.
* sysdeps/powerpc/power7/fpu/s_logb.c: Include
<libm-alias-double.h>.
(logb): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_copysign.S: Include
<libm-alias-double.h>.
(copysign): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_llrint.c: Include
<libm-alias-double.h>.
(llrint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_llround.c: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_lrint.S: Include
<libm-alias-double.h>.
(lrint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_lround.S: Include
<libm-alias-double.h>.
(lround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign.c:
Include <libm-alias-double.h>.
(copysign): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llrint.c:
Include <libm-alias-double.h>.
(llrint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround.c:
Include <libm-alias-double.h>.
(llround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb.c: Include
<libm-alias-double.h>.
(logb): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lrint.c:
Include <libm-alias-double.h>.
(lrint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround.c:
Include <libm-alias-double.h>.
(lround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llrint.S: Include
<libm-alias-double.h>.
(llrint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_llround.S: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_lround.S: Include
<libm-alias-double.h>.
(lround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S: Include
<libm-alias-double.h>.
(copysign): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power6/fpu/s_llrint.S: Include
<libm-alias-double.h>.
(llrint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power6/fpu/s_llround.S: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power6x/fpu/s_lrint.S: Include
<libm-alias-double.h>.
(lrint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power6x/fpu/s_lround.S: Include
<libm-alias-double.h>.
(lround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c: Include
<libm-alias-double.h>.
(copysign): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_llrint.c: Include
<libm-alias-double.h>.
(llrint): Define using libm_alias_double.
(lrint): Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround.c: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
(lround): Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb.c: Include
<libm-alias-double.h>.
(logb): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Include
<libm-alias-double.h>.
(copysign): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/s_llrint.S: Include
<libm-alias-double.h>.
(llrint): Define using libm_alias_double.
(lrint): Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_llround.S: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
(lround): Likewise.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_llround.S: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
(lround): Likewise.
* sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S: Include
<libm-alias-double.h>.
(copysign): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_llrint.S: Include
<libm-alias-double.h>.
(llrint): Define using libm_alias_double.
(lrint): Likewise.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_llround.S: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
(lround): Likewise.
* sysdeps/powerpc/powerpc64/power8/fpu/s_llrint.S: Include
<libm-alias-double.h>.
(llrint): Define using libm_alias_double.
(lrint): Likewise.
* sysdeps/powerpc/powerpc64/power8/fpu/s_llround.S: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
(lround): Likewise.
sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround.c defines the
lroundl compat symbol, version GLIBC_2_1, twice, once based on llround
and once based on __lround. Those are aliases for each other (llround
weak, __lround strong), but defining it twice does not make sense.
This patch changes it to define the compat symbol once only, matching
how libm_alias_double defines it.
Tested with build-many-glibcs.py for its powerpc64 configurations.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround.c
[LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)] (lroundl): Do not define
compat symbol based on llround.
Some powerpc logb implementations define a compat symbol for logbl
based on logb, whereas libm_alias_double defines such a compat symbol
based on __logb instead. This difference (logb is weak, __logb isn't)
is enough to result in different installed stripped shared libraries.
The difference in the installed libraries isn't significant, but first
changing the compat_symbol calls helps make it possible to validate a
subsequent change to use libm_alias_double by comparison of libraries,
so this patch does such a preliminary change.
Tested with build-many-glibcs.py for all its hard-float powerpc
configurations.
* sysdeps/powerpc/power7/fpu/s_logb.c
[LONG_DOUBLE_COMPAT (libm, GLIBC_2_0)] (logbl): Define as compat
symbol based on __logb, not on logb.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb.c
[LONG_DOUBLE_COMPAT (libm, GLIBC_2_0)] (logbl): Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb.c
[LONG_DOUBLE_COMPAT (libm, GLIBC_2_0)] (logbl): Likewise.
Continuing the preparation for additional _FloatN / _FloatNx function
aliases, this patch various powerpc functions use libm_alias_double to
define function aliases (with consequent removal of the need for local
compat symbol handling). (The present patch excludes the changes to
some functions where such changes could result in differences in
installed stripped shared libraries because of changes to the exact
ordering or properties of symbols in individual .os files.)
Tested with build-many-glibcs.py that installed stripped shared
libraries are unchanged for all its hard-float powerpc configurations.
* sysdeps/powerpc/fpu/s_rint.c: Include <libm-alias-double.h>.
(rint): Define using libm_alias_double.
* sysdeps/powerpc/power5+/fpu/s_modf.c: Include
<libm-alias-double.h>.
(modf): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_ceil.S: Include
<libm-alias-double.h>.
(ceil): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_floor.S: Include
<libm-alias-double.h>.
(floor): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_nearbyint.S: Include
<libm-alias-double.h>.
(nearbyint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_rint.S: Include
<libm-alias-double.h>.
(rint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_round.S: Include
<libm-alias-double.h>.
(round): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_trunc.S: Include
<libm-alias-double.h>.
(trunc): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil.c: Include
<libm-alias-double.h>.
(ceil): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor.c:
Include <libm-alias-double.h>.
(floor): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_modf.c: Include
<libm-alias-double.h>.
(modf): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_round.c:
Include <libm-alias-double.h>.
(round): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_trunc.c:
Include <libm-alias-double.h>.
(trunc): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_ceil.S: Include
<libm-alias-double.h>.
(ceil): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_floor.S: Include
<libm-alias-double.h>.
(floor): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_round.S: Include
<libm-alias-double.h>.
(round): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_trunc.S: Include
<libm-alias-double.h>.
(trunc): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceil.c: Include
<libm-alias-double.h>.
(ceil): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_floor.c: Include
<libm-alias-double.h>.
(floor): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_modf.c: Include
<libm-alias-double.h>.
(modf): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_round.c: Include
<libm-alias-double.h>.
(round): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_trunc.c: Include
<libm-alias-double.h>.
(trunc): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/s_ceil.S: Include
<libm-alias-double.h>.
(ceil): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/s_floor.S: Include
<libm-alias-double.h>.
(floor): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/s_nearbyint.S: Include
<libm-alias-double.h>.
(nearbyint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/s_rint.S: Include
<libm-alias-double.h>.
(rint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/s_round.S: Include
<libm-alias-double.h>.
(round): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/s_trunc.S: Include
<libm-alias-double.h>.
(trunc): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_ceil.S: Include
<libm-alias-double.h>.
(ceil): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_floor.S: Include
<libm-alias-double.h>.
(floor): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_round.S: Include
<libm-alias-double.h>.
(round): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_trunc.S: Include
<libm-alias-double.h>.
(trunc): Define using libm_alias_double.
Continuing the preparation for additional _FloatN / _FloatNx function
aliases, this patch makes powerpc fabs and fma use libm_alias_double
to define function aliases. This brings in automatic symbol
versioning compat handling, so the powerpc32 and powerpc64 wrappers
that added such handling to the generic sysdeps/powerpc/fpu versions
are removed as no longer required (there are no sysdeps directory
ordering issues that would necessitate keeping trivial wrappers
there).
Tested with build-many-glibcs.py that installed stripped shared
libraries are unchanged for all its hard-float powerpc configurations.
* sysdeps/powerpc/fpu/s_fabs.S: Include <libm-alias-double.h>.
(fabs): Define using libm_alias_double.
* sysdeps/powerpc/fpu/s_fma.S: Include <libm-alias-double.h>.
(fma): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_fabs.S: Remove file.
* sysdeps/powerpc/powerpc32/fpu/s_fma.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_fabs.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_fma.S: Likewise.
Update strcasestr-power8 to use power8 version of strnlen for
calculating length.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
This is another one where we'll be wanting the base symbols for
powerpc64le rather than just a power7 variant.
* sysdeps/powerpc/powerpc64/multiarch/strncase_l-power7.c: Include
string/strncase_l.c, not string/strncase.c.
(USE_IN_EXTENDED_LOCALE_MODEL): Don't define.
(libc_hidden_def): Redefine.
The routine being assembled here is strcasecmp_l, so ask for that via
__STRCMP and STRCMP defines. That change means tweaking the power7
override. Needed for later powerpc64le changes where we want the base
symbols, not just a power7 variant.
* sysdeps/powerpc/powerpc64/multiarch/strcasecmp_l-power7.S:
(__STRCMP, STRCMP, __strcasecmp_l): Define.
(__strcasecmp): Don't define.
These functions aren't used in ld.so at the moment since we don't have
strcmp or strncmp ifuncs for them there. Remove the ld.so bloat.
* sysdeps/powerpc/powerpc64/multiarch/strcmp-power8.S: Wrap in
IS_IN (libc).
* sysdeps/powerpc/powerpc64/multiarch/strcmp-power9.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strncmp-power8.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strncmp-power9.S: Likewise.
USE_AS_STPNCPY is defined by sysdeps/powerpc/powerpc64/power8/stpncpy.S,
included by this file.
* sysdeps/powerpc/powerpc64/multiarch/stpncpy-power8.S: Don't define
USE_AS_STPNCPY.
It seems to me that libc.a should not contain any of the __GI_
symbols, and certainly --enable-multi-arch ought to not add to the
list. At the end of this patch series we have the following in both
--enable-multi-arch and --disable-multi-arch libc.a:
0000000000000000 T __GI___readdir64
0000000000000000 T __GI___fxstatat64
0000000000000000 T __GI_getrlimit
0000000000000000 T __GI___getrlimit
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan-ppc64.S (hidden_def):
Redefine only when SHARED.
POWER9 DD2.1 and earlier has an issue where some cache inhibited
vector load traps to the kernel, causing a performance degradation. To
handle this in memcpy and memmove, lvx/stvx is used for aligned
addresses instead of lxvd2x/stxvd2x.
Reference: https://patchwork.ozlabs.org/patch/814059/
* sysdeps/powerpc/powerpc64/power7/memcpy.S: Replace
lxvd2x/stxvd2x with lvx/stvx.
* sysdeps/powerpc/powerpc64/power7/memmove.S: Likewise.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
cfi info for stack adjust needs to be on the insn doing the adjust.
cfi describing register saves can be anywhere after the save insn but
before the reg is altered. Fewer locations with cfi result in smaller
cfi programs and possibly slightly faster exception handling. Thus
the LR cfi_offset move.
The idea behind ajusting sp after restoring regs is to break a
register dependency chain, in this case not be using r1 immediately
after it is modified.
The missing LR cfi_restore meant that code after the blr,
unaligned_lt_16 and other labels, would have cfi that said LR was at
cfa+16, but that code is reached without LR being saved.
* sysdeps/powerpc/powerpc64/power8/strncpy.S: Move LR cfi.
Adjust stack after restoring regs. Add missing LR cfi_restore.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
This patch moves the frame setup and teardown to immediately around
the single memset call, as has been done for power8. I've also
decreased FRAMESIZE to that needed to save the two callee-saved
registers used. Plus added cfi.
* sysdeps/powerpc/powerpc64/power7/strncpy.S: Decrease FRAMESIZE.
Move LR save and frame setup/teardown and LR restore to
immediately around memset call. Provide cfi.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
Fix the ifdef clause that was being used in the opposite way, setting
a wrong value of the carry bit.
This is also correcting 2 memory accesses that were mistakenly referring
to r0 while they were supposed to mean the immediate value 0.
[BZ #22142]
* stdio-common/tst-printf.c (fp_test): Add tests for DBL_MAX and
-DBL_MAX.
(do_test): Likewise.
* stdio-common/tst-printf.sh: Likewise.
* sysdeps/powerpc/powerpc64/power7/add_n.S: Invert the initial
ifdef clause in order to set the carry bit right. Replace r0 by
0 without changing the behavior.
Recent commit 59ba2d2b54 missed to add __memrchr_power8 in
ifunc list. Also handled discarding unwanted bytes for
unaligned inputs in power8 optimization.
2017-10-05 Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
* sysdeps/powerpc/powerpc64/multiarch/memrchr-ppc64.c: Revert
back to powerpc32 file.
* sysdeps/powerpc/powerpc64/multiarch/memrchr.c
(memrchr): Add __memrchr_power8 to ifunc list.
* sysdeps/powerpc/powerpc64/power8/memrchr.S: Mask
extra bytes for unaligned inputs.
This patch makes dbl-64 modf use libm_alias_double. Both the dbl-64
and dbl-64/wordsize-64 versions are changed, and the ldbl-opt version
is changed to define the libc compat symbol only. Because of
multiarch wrappers, the changed implementations are made not to define
aliases at all if __modf is defined as a macro, as with other
functions, so avoiding duplicate compat symbols while allowing those
wrappers to be simplified.
Tested for x86_64, and verified with build-many-glibcs.py that
installed stripped shared libraries are unchanged by the patch.
* sysdeps/ieee754/dbl-64/s_modf.c: Include <libm-alias-double.h>.
(modf): Define using libm_alias_double, only if [!__modf].
* sysdeps/ieee754/dbl-64/wordsize-64/s_modf.c: Include
<libm-alias-double.h>.
(modf): Define using libm_alias_double, only if [!__modf].
* sysdeps/ieee754/ldbl-opt/s_modf.c (modfl): Only define libc
compat symbol here.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_modf-ppc32.c
(weak_alias): Do not undefine and redefine.
(strong_alias): Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_modf-ppc64.c
(weak_alias): Likewise.
(strong_alias): Likewise.
This patch makes dbl-64 logb use libm_alias_double. Both the dbl-64
and dbl-64/wordsize-64 versions are changed, and the ldbl-opt version
is removed. Because of multiarch wrappers, the changed
implementations are made not to define aliases at all if __logb is
defined as a macro, as with other functions, so avoiding duplicate
compat symbols while allowing those wrappers to be simplified.
Tested for x86_64, and verified with build-many-glibcs.py that
installed stripped shared libraries are unchanged (except on alpha
where changes from using the wordsize-64 version are expected).
* sysdeps/ieee754/dbl-64/s_logb.c: Include <libm-alias-double.h>.
(logb): Define using libm_alias_double, only if [!__logb].
* sysdeps/ieee754/dbl-64/wordsize-64/s_logb.c: Include
<libm-alias-double.h>.
(logb): Define using libm_alias_double, only if [!__logb].
* sysdeps/ieee754/ldbl-opt/s_logb.c: Remove file.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-ppc32.c
(weak_alias): Do not undefine and redefine.
(strong_alias): Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb-ppc64.c
(weak_alias): Likewise.
(strong_alias): Likewise.
The new generic expf and exp2f code don't need wrappers any more, they
set errno inline, so only use the wrappers on targets that need it.
(If the wrapper is needed, then the top level wrapper code is included,
otherwise empty w_exp*f.c is used to suppress the wrapper.)
A powerpc64 expf implementation includes the expf c code directly which
needed some changes.
* sysdeps/ieee754/flt-32/e_exp2f.c (__exp2f): Define without wrapper.
* sysdeps/ieee754/flt-32/e_expf.c (__expf): Likewise
* sysdeps/ieee754/flt-32/w_exp2f.c: New file.
* sysdeps/ieee754/flt-32/w_expf.c: New file.
* sysdeps/powerpc/powerpc64/fpu/multiarch/e_expf-ppc64.c: Update for
the new expf code.
* sysdeps/powerpc/powerpc64/fpu/multiarch/w_expf.c: New file.
* sysdeps/powerpc/powerpc64/power8/fpu/w_expf.c: New file.
* sysdeps/m68k/m680x0/fpu/w_exp2f.c: New file.
* sysdeps/m68k/m680x0/fpu/w_expf.c: New file.
* sysdeps/i386/fpu/w_exp2f.c: New file.
* sysdeps/i386/fpu/w_expf.c: New file.
* sysdeps/i386/i686/fpu/multiarch/w_expf.c: New file.
* sysdeps/x86_64/fpu/w_expf.c: New file.
Vectorized loops are used for sizes greater than 32B to improve
performance over power7 optimization. This shows as an average
of 25% improvement depending on the position of search
character. The performance is same for shorter strings.
On powerpc64le, compiler support for float128 is not enabled by default
on gcc. To enable it, the flag -mfloat128 must be passed as a command
line option to the compiler. This means that only the few files that
actively have -mfloat128 passed as an argument get compiler support for
float128, whereas all other files don't.
When -mfloat128 becomes enabled by default on powerpc [1], all the files
that do not currently have compiler support for float128 enabled during
their compilation, will start to have it. This will lead to build
errors in s_finite.c, s_isinf.c, and s_isnan.c.
The errors are due to the unintended macro expansion of __finitef128 to
__redirect_finitef128 in math/bits/mathcalls-helper-functions.h. In
that header, __MATHDECL_1 takes '__finite' and 'f128' as arguments and
concatenates them. However, since '__finite' has been redefined in
s_finite.c, the function declaration becomes __redirect_finitef128:
extern int __redirect___finitef128 (_Float128 __value) __attribute__ ((__nothrow__ )) __attribute__ ((__const__));
This declaration itself is OK. The problem arises when include/math.h
creates the hidden prototype ('hidden_proto (__finitef128)'), which
expands to:
extern __typeof (__finitef128) __finitef128 __attribute__ ((visibility ("hidden")));
Since __finitef128 is not declared, __typeof fails. This effect was
already true for the 'float' and 'long double' versions and is now true
for float128. Likewise for isinsff128 and isnanf128.
This patch defines __finitef128 as __redirect___finitef128 in
sysdeps/powerpc/powerpc64/fpu/multiarch/s_finite.c, similarly to what's
done for the float and long double versions of these functions, to get
rid of the build error. Likewise for isinff128 and isnanf128.
[1] https://gcc.gnu.org/ml/gcc-patches/2017-08/msg01028.html
Tested for powerpc64 and powerpc64le.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_finite.c
(__finitef128): Define to __redirect___finitef128.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_isinf.c
(__isinff128): Define to __redirect___isinff128.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan.c
(__isnanf128): Define to __redirect___isnanf128.
As per the section "3.1.4.2 Alignment Interrupts" of the "POWER8 Processor
User's Manual for the Single-Chip Module", alignment interrupt is reported
for misaligned stores in Caching-inhibited storage. As memset is used in
some drivers for DMA (like xorg), this patch avoids misaligned stores for
sizes less than 8 in memset.
Some math functions have to be distributed in libc because they're
required by printf.
libc and libm require their own builds of these functions, e.g. libc
functions have to call __stack_chk_fail_local in order to bypass the
PLT, while libm functions have to call __stack_chk_fail.
While math/Makefile treat the generic cases, i.e. s_isinff, the
multiarch Makefile has to treat its own files, i.e. s_isinff-ppc64.
[BZ #21745]
* sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile:
[$(subdir) = math] (sysdep_calls): New variable. Has the
previous contents of sysdep_routines, but re-sorted..
[$(subdir) = math] (sysdep_routines): Re-use the contents from
sysdep_calls.
[$(subdir) = math] (libm-sysdep_routines): Remove the functions
defined in sysdep_calls and replace by the respective m_* names.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan-ppc64.S:
(compat_symbol): Undefine to avoid duplicated compat symbols in
libc.
This makes the __tls_get_addr_opt test run as a shared library, and so
actually test that DTPMOD64/DTPREL64 pairs are processed by ld.so to
support the __tls_get_adfr_opt call stub fast return. After a
2017-01-24 patch (binutils f0158f4416) ld.bfd no longer emitted
unnecessary dynamic relocations against local thread variables,
instead setting up the __tls_index GOT entries for the call stub fast
return. This meant tst-tlsopt-powerpc passed but did not check ld.so
relocation support. After a 2017-07-16 patch (binutils 676ee2b5fa)
ld.bfd no longer set up the __tls_index GOT entries for the call stub
fast return, and tst-tlsopt-powerpc failed.
Compiling mod-tlsopt-powerpc.c with -DSHARED exposed a bug in
powerpc64/tls-macros.h, which defines a __TLS_GET_ADDR macro that
clashes with one defined in dl-tls.h. The tls-macros.h version is
only used in that file, so delete it and expand.
* sysdeps/powerpc/mod-tlsopt-powerpc.c: Extract from
tst-tlsopt-powerpc.c with function name change and no test harness.
* sysdeps/powerpc/tst-tlsopt-powerpc.c: Remove body of test.
Call tls_get_addr_opt_test.
* sysdeps/powerpc/Makefile (LDFLAGS-tst-tlsopt-powerpc): Don't define.
(modules-names): Add mod-tlsopt-powerpc.
(mod-tlsopt-powerpc.so-no-z-defs): Define.
(tst-tlsopt-powerpc): Depend on .so.
* sysdeps/powerpc/powerpc64/tls-macros.h (__TLS_GET_ADDR): Don't
define. Expand use in TLS_GD and TLS_LD.
The ucontext_t type has a tag struct ucontext. As with previous such
issues for siginfo_t and stack_t, this tag is not permitted by POSIX
(is not in a reserved namespace), and so namespace conformance means
breaking C++ name mangling for this type.
In this case, the type does need to have some tag rather than just a
typedef name, because it includes a pointer to itself. This patch
uses struct ucontext_t as the new tag, so the type is mangled as
ucontext_t (the POSIX *_t reservation applies in all namespaces, not
just the namespace of ordinary identifiers). Another reserved name
such as struct __ucontext could of course be used.
Because of other namespace issues, this patch does not by itself fix
bug 21457 or allow any XFAILs to be removed.
Tested for x86_64, and with build-many-glibcs.py.
[BZ #21457]
* sysdeps/arm/sys/ucontext.h (struct ucontext): Rename to struct
ucontext_t.
* sysdeps/generic/sys/ucontext.h (struct ucontext): Likewise.
* sysdeps/i386/sys/ucontext.h (struct ucontext): Likewise.
* sysdeps/m68k/sys/ucontext.h (struct ucontext): Likewise.
* sysdeps/mips/sys/ucontext.h (struct ucontext): Likewise.
* sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h (struct
ucontext): Likewise.
* sysdeps/unix/sysv/linux/alpha/sys/ucontext.h (struct ucontext):
Likewise.
* sysdeps/unix/sysv/linux/arm/sys/ucontext.h (struct ucontext):
Likewise.
* sysdeps/unix/sysv/linux/hppa/sys/ucontext.h (struct ucontext):
Likewise.
* sysdeps/unix/sysv/linux/ia64/sys/ucontext.h (struct ucontext):
Likewise.
* sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (struct ucontext):
Likewise.
* sysdeps/unix/sysv/linux/mips/sys/ucontext.h (struct ucontext):
Likewise.
* sysdeps/unix/sysv/linux/nios2/sys/ucontext.h (struct ucontext):
Likewise.
* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h (struct
ucontext): Likewise.
* sysdeps/unix/sysv/linux/s390/sys/ucontext.h (struct ucontext):
Likewise.
* sysdeps/unix/sysv/linux/sh/sys/ucontext.h (struct ucontext):
Likewise.
* sysdeps/unix/sysv/linux/sparc/sys/ucontext.h (struct ucontext):
Likewise.
* sysdeps/unix/sysv/linux/tile/sys/ucontext.h (struct ucontext):
Likewise.
* sysdeps/unix/sysv/linux/x86/sys/ucontext.h (struct ucontext):
Likewise.
* sysdeps/powerpc/powerpc32/backtrace.c (struct
rt_signal_frame_32): Likewise.
* sysdeps/powerpc/powerpc64/backtrace.c (struct signal_frame_64):
Likewise.
* sysdeps/unix/sysv/linux/aarch64/kernel_rt_sigframe.h (struct
kernel_rt_sigframe): Likewise.
* sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h (SIGCONTEXT):
Likewise.
* sysdeps/unix/sysv/linux/arm/register-dump.h (register_dump):
Likewise.
* sysdeps/unix/sysv/linux/arm/sigcontextinfo.h (SIGCONTEXT):
Likewise.
* sysdeps/unix/sysv/linux/hppa/profil-counter.h
(__profil_counter): Likewise.
* sysdeps/unix/sysv/linux/microblaze/sigcontextinfo.h
(SIGCONTEXT): Likewise.
* sysdeps/unix/sysv/linux/mips/kernel_rt_sigframe.h (struct
kernel_rt_sigframe): Likewise.
* sysdeps/unix/sysv/linux/nios2/kernel_rt_sigframe.h (struct
kernel_rt_sigframe): Likewise.
* sysdeps/unix/sysv/linux/nios2/sigcontextinfo.h (SIGCONTEXT):
Likewise.
* sysdeps/unix/sysv/linux/sh/makecontext.S (__makecontext):
Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c
(__start_context): Likewise.
* sysdeps/unix/sysv/linux/tile/sigcontextinfo.h (SIGCONTEXT):
Likewise.
* sysdeps/unix/sysv/linux/x86_64/register-dump.h (register_dump):
Likewise.
* sysdeps/unix/sysv/linux/x86_64/sigcontextinfo.h (SIGCONTEXT):
Likewise.
sysdeps/powerpc/powerpc64/fpu/multiarch/s_sinf-ppc64.c should fall back to
sysdeps/powerpc/fpu/s_sinf.c not to sysdeps/ieee754/flt-32/s_sinf.c.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_sinf-ppc64.c: Change
s_sinf.c from sysdeps/ieee754/flt-32/ to sysdeps/powerpc/fpu/.
