This patch updates sysdeps/unix/sysv/linux/syscall-names.list for
Linux 4.20. Although there are no new syscalls, the
riscv_flush_icache syscall has moved to asm/unistd.h (previously in
asm/syscalls.h) and so now needs to be added to the list.
Tested with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/syscall-names.list: Update kernel
version to 4.20.
(riscv_flush_icache): New syscall.
<asm/syscalls.h> has been removed by
commit 27f8899d6002e11a6e2d995e29b8deab5aa9cc25
Author: David Abdurachmanov <david.abdurachmanov@gmail.com>
Date: Thu Nov 8 20:02:39 2018 +0100
riscv: add asm/unistd.h UAPI header
Marcin Juszkiewicz reported issues while generating syscall table for riscv
using 4.20-rc1. The patch refactors our unistd.h files to match some other
architectures.
- Add asm/unistd.h UAPI header, which has __ARCH_WANT_NEW_STAT only for 64-bit
- Remove asm/syscalls.h UAPI header and merge to asm/unistd.h
- Adjust kernel asm/unistd.h
So now asm/unistd.h UAPI header should show all syscalls for riscv.
<asm/syscalls.h> may be restored by
Subject: [PATCH] riscv: restore asm/syscalls.h UAPI header
Date: Tue, 11 Dec 2018 09:09:35 +0100
UAPI header asm/syscalls.h was merged into UAPI asm/unistd.h header,
which did resolve issue with missing syscalls macros resulting in
glibc (2.28) build failure. It also broke glibc in a different way:
asm/syscalls.h is being used by glibc. I noticed this while doing
Fedora 30/Rawhide mass rebuild.
The patch returns asm/syscalls.h header and incl. it into asm/unistd.h.
I plan to send a patch to glibc to use asm/unistd.h instead of
asm/syscalls.h
In the meantime, we use __has_include__, which was added to GCC 5, to
check if <asm/syscalls.h> exists before including it. Tested with
build-many-glibcs.py for riscv against kernel 4.19.12 and 4.20-rc7.
[BZ #24022]
* sysdeps/unix/sysv/linux/riscv/flush-icache.c: Check if
<asm/syscalls.h> exists with __has_include__ before including it.
The current s_sincosf.c is faster than s_sincosf-sse2.S. On Broadwell
with FMA disabled, bench-sincosf shows:
Before After Improvement
max 154.032 114.517 34%
min 6.25 5.609 11%
mean 14.8728 12.8589 15%
* sysdeps/x86_64/fpu/s_sincosf.S: Removed.
* sysdeps/x86_64/fpu/multiarch/s_sincosf-sse2.S: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_sincosf-sse2.c: New file.
Add <sincosf_poly.h> and include it in s_sincosf.h to allow vectorized
sincosf_poly. Add x86 sincosf_poly.h to vectorize sincosf_poly. On
Broadwell, bench-sincosf shows:
Before After Improvement
max 160.273 114.198 40%
min 6.25 5.625 11%
mean 13.0325 10.6462 22%
Vectorized sincosf_poly shows
Before After Improvement
max 138.653 114.198 21%
min 5.004 5.625 -11%
mean 11.5934 10.6462 9%
Tested on x86-64 and i686 as well as with build-many-glibcs.py.
* sysdeps/ieee754/flt-32/s_sincosf.h: Include <sincosf_poly.h>.
(sincos_t, sincosf_poly, sinf_poly): Moved to ...
* sysdeps/ieee754/flt-32/sincosf_poly.h: Here. New file.
* sysdeps/x86/fpu/s_sincosf_data.c: New file.
* sysdeps/x86/fpu/sincosf_poly.h: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_sincosf-fma.c: Just include
<sysdeps/ieee754/flt-32/s_sincosf.c>.
The recent difftime changes introduced localplt test failures on nios2
and sparc32, two configurations where some soft-fp functions are
defined in / exported from libc.so, and where the difftime changes
affected the particular set of floating-point operations used in
libc.so. This patch adds those functions to localplt.data, alongside
other such functions already there. (In the sparc32 case, and more
generally on any platform where long double is a software
floating-point type, it would probably be more efficient to avoid
using long double at all in difftime, but that's a pre-existing
issue.)
Tested with build-many-glibcs.py for its nios2 and sparcv9
configurations.
[BZ #24023]
* sysdeps/unix/sysv/linux/nios2/localplt.data: Allow __floatundidf
PLT reference in libc.so.
* sysdeps/unix/sysv/linux/sparc/sparc32/localplt.data: Allow
_Q_lltoq and _Q_qtod PLT references in libc.so.
After previous cleanups, the only code in the x86 bits/mathinline.h
that is relevant with current compilers is the inline of
__ieee754_atan2l that is conditional on __LIBC_INTERNAL_MATH_INLINES
(i.e. for when libm itself is being built).
This inline is something that does belong in glibc not GCC, since
__ieee754_atan2l is a purely internal function name. This patch moves
that inline to a new sysdeps/x86/fpu/math_private.h, removing the
bits/mathinline.h header.
Note that previously the inline was only for non-SSE 32-bit x86. That
condition does not make sense, however, for a long double function; if
it's not inlined, exactly the same x87 instruction will end up getting
used by the out-of-line function, for both 32-bit and 64-bit. So that
condition is not retained in the new version.
Tested for x86_64 and x86. As expected, installed stripped shared
libraries are unchanged for 32-bit x86, but installed stripped libm.so
is changed for x86_64 because calls to __ieee754_atan2l start being
inlined where previously they were out of line calls. (The same
change to start inlining the function would presumably also apply for
32-bit built with -mfpmath=sse, but that's not a configuration I've
tested.)
* sysdeps/x86/fpu/math_private.h: New file.
* sysdeps/x86/fpu/bits/mathinline.h: Remove.
Continuing the removal of bits/mathinline.h inlines that would better
be done by the compiler, this patch removes x86 inlines for sinh, cosh
and tanh functions (inlines only previously present for fast-math,
non-SSE 32-bit x86). I've filed
<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88556> for adding such
inlines as an optimization in GCC.
I believe the only remaining part of the x86 bits/mathinline.h that
does anything useful with current compilers after this patch is the
__LIBC_INTERNAL_MATH_INLINES inline of __ieee754_atan2l; I intend to
remove the whole header and move that inline to a sysdeps
math_private.h header in a subsequent patch.
Tested for x86_64 and x86.
* sysdeps/x86/fpu/bits/mathinline.h (sinh): Remove inline
definition.
(cosh): Likewise.
(tanh): Likewise.
Add support for AT_L1I_CACHESIZE, AT_L1I_CACHEGEOMETRY,
AT_L1D_CACHESIZE, AT_L1D_CACHEGEOMETRY, AT_L2_CACHESIZE,
AT_L2_CACHEGEOMETRY, AT_L3_CACHESIZE and AT_L3_CACHEGEOMETRY when
LD_SHOW_AUXV=1.
AT_L*_CACHESIZE is printed as decimal and represent the number of
bytes of the cache.
AT_L*_CACHEGEOMETRY is treated in order to specify the cache line size
and its associativity.
Example output from a POWER8:
AT_L1I_CACHESIZE: 32768
AT_L1I_CACHEGEOMETRY: 128B line size, 8-way set associative
AT_L1D_CACHESIZE: 65536
AT_L1D_CACHEGEOMETRY: 128B line size, 8-way set associative
AT_L2_CACHESIZE: 524288
AT_L2_CACHEGEOMETRY: 128B line size, 8-way set associative
AT_L3_CACHESIZE: 8388608
AT_L3_CACHEGEOMETRY: 128B line size, 8-way set associative
Some of the new types are longer than the previous ones, requiring to
increase the indentation in order to keep the values aligned.
* elf/dl-sysdep.c (auxvars): Add AT_L1I_CACHESIZE,
AT_L1I_CACHEGEOMETRY, AT_L1D_CACHESIZE, AT_L1D_CACHEGEOMETRY,
AT_L2_CACHESIZE, AT_L2_CACHEGEOMETRY, AT_L3_CACHESIZE and
AT_L3_CACHEGEOMETRY. Fix indentation when printing the other
fields.
(_dl_show_auxv): Give a special treatment to
AT_L1I_CACHEGEOMETRY, AT_L1D_CACHEGEOMETRY, AT_L2_CACHEGEOMETRY
and AT_L3_CACHEGEOMETRY.
* sysdeps/powerpc/dl-procinfo.h (cache_geometry): New function.
(_dl_procinfo): Fix indentation when printing AT_HWCAP and
AT_HWCAP2. Add support for AT_L1I_CACHEGEOMETRY,
AT_L1D_CACHEGEOMETRY, AT_L2_CACHEGEOMETRY and AT_L3_CACHEGEOMETRY.
Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
S390 kernel sigaction is the same as the Linux generic one.
Checked with a s390-linux-gnu and s390x-linux-gnu build.
* sysdeps/unix/sysv/linux/s390/kernel_sigaction.h: Use Linux generic
kernel_sigction definition.
IA64 kernel_sigaction.h definition is the sama as the Linux generic
one.
Checked on ia64-linux-gnu.
* sysdeps/unix/sysv/linux/ia64/kernel_sigaction.h: Remove file.
HPPA kernel_sigaction.h definition is the sama as the Linux generic
one and old_kernel_sigaction is not used.
Checked on hppa-linux-gnu.
* sysdeps/unix/sysv/linux/hppa/kernel_sigaction.h: Remove file.
Alpha rt_sigaction syscall uses a slight different kernel ABI than
generic one:
arch/alpha/kernel/signal.c
90 SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act,
91 struct sigaction __user *, oact,
92 size_t, sigsetsize, void __user *, restorer)
Similar as sparc, the syscall expects a restorer function. However
different than sparc, alpha defines the restorer as the 5th argument
(sparc defines as the 4th).
This patch removes the arch-specific alpha sigaction implementation,
adapt the Linux generic one to different restore placements (through
STUB macro), and make alpha use the Linux generic kernel_sigaction
definition.
Checked on alpha-linux-gnu and x86_64-linux-gnu (for sanity).
* sysdeps/unix/sysv/linux/alpha/Makefile: Update comment about
__syscall_rt_sigaction.
* sysdeps/unix/sysv/linux/alpha/kernel_sigaction.h
(kernel_sigaction): Use Linux generic defintion.
(STUB): Define.
(__syscall_rt_sigreturn, __syscall_sigreturn): Add prototype.
* sysdeps/unix/sysv/linux/alpha/rt_sigaction.S
(__syscall_rt_sigaction): Remove implementation.
(__syscall_sigreturn, __syscall_rt_sigreturn): Define as global and
hidden.
* sysdeps/unix/sysv/linux/alpha/sigaction.c: Remove file.
* sysdeps/unix/sysv/linux/alpha/sysdep.h (INLINE_SYSCALL,
INTERNAL_SYSCALL): Remove definitions.
* sysdeps/unix/sysv/linux/sigaction.c: Define STUB to accept both the
action and signal set size.
* sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c (STUB): Redefine.
* sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c (STUB): Likewise.
Commit b4a5d26d88 (linux: Consolidate sigaction implementation) added
a wrong kernel_sigaction definition for m68k, meant for __NR_sigaction
instead of __NR_rt_sigaction as used on generic Linux sigaction
implementation. This patch fixes it by using the Linux generic
definition meant for the RT kernel ABI.
Checked the signal tests on emulated m68-linux-gnu (Aranym). It fixes
the faulty signal/tst-sigaction and man works as expected.
Adhemerval Zanella <adhemerval.zanella@linaro.org>
James Clarke <jrtc27@jrtc27.com>
[BZ #23960]
* sysdeps/unix/sysv/linux/kernel_sigaction.h (HAS_SA_RESTORER):
Define if SA_RESTORER is defined.
(kernel_sigaction): Define sa_restorer if HAS_SA_RESTORER is defined.
(SET_SA_RESTORER, RESET_SA_RESTORER): Define iff the macro are not
already defined.
* sysdeps/unix/sysv/linux/m68k/kernel_sigaction.h (SA_RESTORER,
kernel_sigaction, SET_SA_RESTORER, RESET_SA_RESTORER): Remove
definitions.
(HAS_SA_RESTORER): Define.
* sysdeps/unix/sysv/linux/sparc/kernel_sigaction.h (SA_RESTORER,
SET_SA_RESTORER, RESET_SA_RESTORER): Remove definition.
(HAS_SA_RESTORER): Define.
* sysdeps/unix/sysv/linux/nios2/kernel_sigaction.h: Include generic
kernel_sigaction after define SET_SA_RESTORER and RESET_SA_RESTORER.
* sysdeps/unix/sysv/linux/powerpc/kernel_sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sigaction.c: Likewise.
kernel-features.h has a macro __ASSUME_ST_INO_64_BIT, with a comment
"However, SH is lame, and still does not have a 64-bit inode field.".
The macro is, in fact, defined to 0 by Alpha as well as SH. The Alpha
case is, however, trivially useless: none of the files that test
__ASSUME_ST_INO_64_BIT are built for Alpha (which gained kernel
support for stat64 syscalls, with a 64-bit st_ino field, in Linux
2.6.4; the define to 0 for Alpha in glibc predates that).
The SH kernel gained support for a 64-bit st_ino in struct stat64 in
commit 760bcb1deec13c50e20399c84cb6a8ea41cc2820 ("sh: Fix fstatat64()
syscall."), which is in Linux 2.6.22 and later. So the redefinition
of __ASSUME_ST_INO_64_BIT to 0 is of no use for SH either; three of
the files testing it do so immediately after a stat64-family syscall
has been used, which will always have set the 64-bit st_ino correctly
(in addition to the 32-bit __st_ino), while the relevant code
__xstat32_conv executes only after such a syscall in the function
calling __xstat32_conv.
Thus this patch removes __ASSUME_ST_INO_64_BIT and code testing it.
Removing the useless [!__ASSUME_ST_INO_64_BIT] code in __xstat32_conv
renders the [_HAVE_STAT64___ST_INO] and [!_HAVE_STAT64___ST_INO] cases
around it identical, so that conditional is also removed.
Tested compilation with build-many-glibcs.py for its Alpha and SH
configurations; also ran the glibc testsuite for x86_64 and x86.
* sysdeps/unix/sysv/linux/kernel-features.h
(__ASSUME_ST_INO_64_BIT): Remove macro definition.
* sysdeps/unix/sysv/linux/alpha/kernel-features.h
(__ASSUME_ST_INO_64_BIT): Do not undefine and define.
* sysdeps/unix/sysv/linux/sh/kernel-features.h
(__ASSUME_ST_INO_64_BIT): Likewise.
* sysdeps/unix/sysv/linux/fxstat64.c: Do not include
<kernel-features.h>.
(___fxstat64) [_HAVE_STAT64___ST_INO && !__ASSUME_ST_INO_64_BIT]:
Remove conditional code.
* sysdeps/unix/sysv/linux/lxstat64.c: Do not include
<kernel-features.h>.
(___lxstat64) [_HAVE_STAT64___ST_INO && !__ASSUME_ST_INO_64_BIT]:
Remove conditional code.
* sysdeps/unix/sysv/linux/xstat64.c: Do not include
<kernel-features.h>.
(___xstat64) [_HAVE_STAT64___ST_INO && !__ASSUME_ST_INO_64_BIT]:
Remove conditional code.
* sysdeps/unix/sysv/linux/xstatconv.c: Do not include
<kernel-features.h>.
(__xstat32_conv) [_HAVE_STAT64___ST_INO]: Remove conditional code.
[!_HAVE_STAT64___ST_INO]: Make code unconditional.
The ifunc macros s390_vx_libc* are no longer used and
can be removed as all users are now relying on
s390_libc_ifunc_expr.
The same applies to s390_libc_ifunc. The macro
s390_libc_ifunc_init is now renamed to
s390_libc_ifunc_expr_stfle_init and the users are
adjusted accordingly.
ChangeLog:
* sysdeps/s390/multiarch/ifunc-resolve.h
(s390_vx_libc_ifunc, s390_vx_libc_ifunc_redirected,
s390_vx_libc_ifunc2, s390_vx_libc_ifunc_init,
s390_vx_libc_ifunc2_redirected, s390_libc_ifunc):
Delete macro definition.
(s390_libc_ifunc_init): Rename to
s390_libc_ifunc_expr_stfle_init.
* sysdeps/s390/bzero: Use
s390_libc_ifunc_expr_stfle_init instead of
s390_libc_ifunc_init.
* sysdeps/s390/memcmp.c: Likewise.
* sysdeps/s390/memcpy.c: Likewise.
* sysdeps/s390/mempcpy.c: Likewise.
* sysdeps/s390/memset.c: Likewise.
The ifunc handling for various __gconv_transform_* functions
which are using IFUNC on s390x are adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Instead those functions are just an alias to the vector variants.
Furthermore the ifunc-macro s390_libc_ifunc_expr is now used instead of
s390_vx_libc_ifunc.
ChangeLog:
* sysdeps/s390/multiarch/gconv_simple.c (ICONV_VX_IFUNC):
Define macro dependent on HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT.
The ifunc handling for wmemcmp is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wmemcmp variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wmemcmp variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wmemcmp.
* sysdeps/s390/multiarch/wmemcmp-c.c: Move to ...
* sysdeps/s390/wmemcmp-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wmemcmp-vx.S: Move to ...
* sysdeps/s390/wmemcmp-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wmemcmp.c: Move to ...
* sysdeps/s390/wmemcmp.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wmemcmp.h: New file.
The ifunc handling for wmemset is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
Glibc internal calls will use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wmemset variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wmemset variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wmemset.
* sysdeps/s390/multiarch/wmemset-c.c: Move to ...
* sysdeps/s390/wmemset-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wmemset-vx.S: Move to ...
* sysdeps/s390/wmemset-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wmemset.c: Move to ...
* sysdeps/s390/wmemset.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wmemset.h: New file.
The ifunc handling for wmemchr is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
Glibc internal calls will use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wmemchr variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wmemchr variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wmemchr.
* sysdeps/s390/multiarch/wmemchr-c.c: Move to ...
* sysdeps/s390/wmemchr-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wmemchr-vx.S: Move to ...
* sysdeps/s390/wmemchr-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wmemchr.c: Move to ...
* sysdeps/s390/wmemchr.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wmemchr.h: New file.
The ifunc handling for wcscspn is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcscspn variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcscspn variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcscspn.
* sysdeps/s390/multiarch/wcscspn-c.c: Move to ...
* sysdeps/s390/wcscspn-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcscspn-vx.S: Move to ...
* sysdeps/s390/wcscspn-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcscspn.c: Move to ...
* sysdeps/s390/wcscspn.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcscspn.h: New file.
The ifunc handling for wcspbrk is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
Glibc internal calls will use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcspbrk variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcspbrk variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcspbrk.
* sysdeps/s390/multiarch/wcspbrk-c.c: Move to ...
* sysdeps/s390/wcspbrk-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcspbrk-vx.S: Move to ...
* sysdeps/s390/wcspbrk-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcspbrk.c: Move to ...
* sysdeps/s390/wcspbrk.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcspbrk.h: New file.
The ifunc handling for wcsspn is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
Glibc internal calls will use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcsspn variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcsspn variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcsspn.
* sysdeps/s390/multiarch/wcsspn-c.c: Move to ...
* sysdeps/s390/wcsspn-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcsspn-vx.S: Move to ...
* sysdeps/s390/wcsspn-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcsspn.c: Move to ...
* sysdeps/s390/wcsspn.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcsspn.h: New file.
The ifunc handling for wcsrchr is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcsrchr variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcsrchr variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcsrchr.
* sysdeps/s390/multiarch/wcsrchr-c.c: Move to ...
* sysdeps/s390/wcsrchr-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcsrchr-vx.S: Move to ...
* sysdeps/s390/wcsrchr-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcsrchr.c: Move to ...
* sysdeps/s390/wcsrchr.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcsrchr.h: New file.
The ifunc handling for wcschrnul is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcschrnul variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcschrnul variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcschrnul.
* sysdeps/s390/multiarch/wcschrnul-c.c: Move to ...
* sysdeps/s390/wcschrnul-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcschrnul-vx.S: Move to ...
* sysdeps/s390/wcschrnul-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcschrnul.c: Move to ...
* sysdeps/s390/wcschrnul.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcschrnul.h: New file.
The ifunc handling for wcschr is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
Glibc internal calls will use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcschr variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcschr variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcschr.
* sysdeps/s390/multiarch/wcschr-c.c: Move to ...
* sysdeps/s390/wcschr-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcschr-vx.S: Move to ...
* sysdeps/s390/wcschr-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcschr.c: Move to ...
* sysdeps/s390/wcschr.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcschr.h: New file.
The ifunc handling for wcsncmp is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcsncmp variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcsncmp variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcsncmp.
* sysdeps/s390/multiarch/wcsncmp-c.c: Move to ...
* sysdeps/s390/wcsncmp-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcsncmp-vx.S: Move to ...
* sysdeps/s390/wcsncmp-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcsncmp.c: Move to ...
* sysdeps/s390/wcsncmp.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcsncmp.h: New file.
The ifunc handling for wcscmp is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcscmp variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcscmp variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcscmp.
* sysdeps/s390/multiarch/wcscmp-c.c: Move to ...
* sysdeps/s390/wcscmp-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcscmp-vx.S: Move to ...
* sysdeps/s390/wcscmp-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcscmp.c: Move to ...
* sysdeps/s390/wcscmp.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcscmp.h: New file.
The ifunc handling for wcsncat is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcsncat variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcsncat variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcsncat.
* sysdeps/s390/multiarch/wcsncat-c.c: Move to ...
* sysdeps/s390/wcsncat-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcsncat-vx.S: Move to ...
* sysdeps/s390/wcsncat-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcsncat.c: Move to ...
* sysdeps/s390/wcsncat.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcsncat.h: New file.
The ifunc handling for wcscat is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcscat variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcscat variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcscat.
* sysdeps/s390/multiarch/wcscat-c.c: Move to ...
* sysdeps/s390/wcscat-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcscat-vx.S: Move to ...
* sysdeps/s390/wcscat-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcscat.c: Move to ...
* sysdeps/s390/wcscat.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcscat.h: New file.
The ifunc handling for wcpncpy is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcpncpy variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcpncpy variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcpncpy.
* sysdeps/s390/multiarch/wcpncpy-c.c: Move to ...
* sysdeps/s390/wcpncpy-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcpncpy-vx.S: Move to ...
* sysdeps/s390/wcpncpy-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcpncpy.c: Move to ...
* sysdeps/s390/wcpncpy.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcpncpy.h: New file.
The ifunc handling for wcsncpy is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcsncpy variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcsncpy variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcsncpy.
* sysdeps/s390/multiarch/wcsncpy-c.c: Move to ...
* sysdeps/s390/wcsncpy-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcsncpy-vx.S: Move to ...
* sysdeps/s390/wcsncpy-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcsncpy.c: Move to ...
* sysdeps/s390/wcsncpy.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcsncpy.h: New file.
The ifunc handling for wcpcpy is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcpcpy variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcpcpy variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcpcpy.
* sysdeps/s390/multiarch/wcpcpy-c.c: Move to ...
* sysdeps/s390/wcpcpy-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcpcpy-vx.S: Move to ...
* sysdeps/s390/wcpcpy-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcpcpy.c: Move to ...
* sysdeps/s390/wcpcpy.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcpcpy.h: New file.
The ifunc handling for wcscpy is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcscpy variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcscpy variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcscpy.
* sysdeps/s390/multiarch/wcscpy-c.c: Move to ...
* sysdeps/s390/wcscpy-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcscpy-vx.S: Move to ...
* sysdeps/s390/wcscpy-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcscpy.c: Move to ...
* sysdeps/s390/wcscpy.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcscpy.h: New file.
The ifunc handling for wcsnlen is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
Glibc internal calls will use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcsnlen variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcsnlen variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcsnlen.
* sysdeps/s390/multiarch/wcsnlen-c.c: Move to ...
* sysdeps/s390/wcsnlen-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcsnlen-vx.S: Move to ...
* sysdeps/s390/wcsnlen-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcsnlen.c: Move to ...
* sysdeps/s390/wcsnlen.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcsnlen.h: New file.
The ifunc handling for wcslen is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcslen variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcslen variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcslen.
* sysdeps/s390/multiarch/wcslen-c.c: Move to ...
* sysdeps/s390/wcslen-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcslen-vx.S: Move to ...
* sysdeps/s390/wcslen-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcslen.c: Move to ...
* sysdeps/s390/wcslen.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcslen.h: New file.
The ifunc handling for memrchr is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove memrchr variants.
* sysdeps/s390/Makefile (sysdep_routines): Add memrchr variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for memrchr.
* sysdeps/s390/multiarch/memrchr-c.c: Move to ...
* sysdeps/s390/memrchr-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/memrchr-vx.S: Move to ...
* sysdeps/s390/memrchr-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/memrchr.c: Move to ...
* sysdeps/s390/memrchr.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-memrchr.h: New file.
The ifunc handling for memccpy is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove memccpy variants.
* sysdeps/s390/Makefile (sysdep_routines): Add memccpy variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for memccpy.
* sysdeps/s390/multiarch/memccpy-c.c: Move to ...
* sysdeps/s390/memccpy-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/memccpy-vx.S: Move to ...
* sysdeps/s390/memccpy-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/memccpy.c: Move to ...
* sysdeps/s390/memccpy.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-memccpy.h: New file.
The ifunc handling for rawmemchr is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove rawmemchr variants.
* sysdeps/s390/Makefile (sysdep_routines): Add rawmemchr variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for rawmemchr.
* sysdeps/s390/multiarch/rawmemchr-c.c: Move to ...
* sysdeps/s390/rawmemchr-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/rawmemchr-vx.S: Move to ...
* sysdeps/s390/rawmemchr-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/rawmemchr.c: Move to ...
* sysdeps/s390/rawmemchr.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-rawmemchr.h: New file.
The ifunc handling for memchr is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
Note: The fallback s390-32/s390-64 ifunc variants with srst instruction
are now moved to the unified memchr-z900.S file which can be used for
31/64bit. The s390-32/s390-64 files multiarch/memchr.c and memchr.S
are deleted.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove memchr variants.
* sysdeps/s390/Makefile (sysdep_routines): Add memchr variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for memchr.
* sysdeps/s390/multiarch/memchr-vx.S: Move to ...
* sysdeps/s390/memchr-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/memchr.c: Move to ...
* sysdeps/s390/memchr.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-memchr.h: New file.
* sysdeps/s390/s390-64/memchr.S: Move to ...
* sysdeps/s390/memchr-z900.S: ... here and adjust to be usable
for 31/64bit and ifunc handling.
* sysdeps/s390/s390-32/multiarch/memchr.c: Delete file.
* sysdeps/s390/s390-64/multiarch/memchr.c: Likewise.
* sysdeps/s390/s390-32/memchr.S: Likewise.
The ifunc handling for strcspn is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove strcspn variants.
* sysdeps/s390/Makefile (sysdep_routines): Add strcspn variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for strcspn.
* sysdeps/s390/multiarch/strcspn-c.c: Move to ...
* sysdeps/s390/strcspn-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strcspn-vx.S: Move to ...
* sysdeps/s390/strcspn-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strcspn.c: Move to ...
* sysdeps/s390/strcspn.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-strcspn.h: New file.
The ifunc handling for strpbrk is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove strpbrk variants.
* sysdeps/s390/Makefile (sysdep_routines): Add strpbrk variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for strpbrk.
* sysdeps/s390/multiarch/strpbrk-c.c: Move to ...
* sysdeps/s390/strpbrk-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strpbrk-vx.S: Move to ...
* sysdeps/s390/strpbrk-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strpbrk.c: Move to ...
* sysdeps/s390/strpbrk.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-strpbrk.h: New file.
The ifunc handling for strspn is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove strspn variants.
* sysdeps/s390/Makefile (sysdep_routines): Add strspn variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for strspn.
* sysdeps/s390/multiarch/strspn-c.c: Move to ...
* sysdeps/s390/strspn-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strspn-vx.S: Move to ...
* sysdeps/s390/strspn-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strspn.c: Move to ...
* sysdeps/s390/strspn.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-strspn.h: New file.
The ifunc handling for strrchr is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove strrchr variants.
* sysdeps/s390/Makefile (sysdep_routines): Add strrchr variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for strrchr.
* sysdeps/s390/multiarch/strrchr-c.c: Move to ...
* sysdeps/s390/strrchr-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strrchr-vx.S: Move to ...
* sysdeps/s390/strrchr-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strrchr.c: Move to ...
* sysdeps/s390/strrchr.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-strrchr.h: New file.
The ifunc handling for strchrnul is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove strchrnul variants.
* sysdeps/s390/Makefile (sysdep_routines): Add strchrnul variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for strchrnul.
* sysdeps/s390/multiarch/strchrnul-c.c: Move to ...
* sysdeps/s390/strchrnul-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strchrnul-vx.S: Move to ...
* sysdeps/s390/strchrnul-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strchrnul.c: Move to ...
* sysdeps/s390/strchrnul.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-strchrnul.h: New file.
The ifunc handling for strchr is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove strchr variants.
* sysdeps/s390/Makefile (sysdep_routines): Add strchr variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for strchr.
* sysdeps/s390/multiarch/strchr-c.c: Move to ...
* sysdeps/s390/strchr-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strchr-vx.S: Move to ...
* sysdeps/s390/strchr-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strchr.c: Move to ...
* sysdeps/s390/strchr.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-strchr.h: New file.
The ifunc handling for strncmp is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove strncmp variants.
* sysdeps/s390/Makefile (sysdep_routines): Add strncmp variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for strncmp.
* sysdeps/s390/multiarch/strncmp-c.c: Move to ...
* sysdeps/s390/strncmp-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strncmp-vx.S: Move to ...
* sysdeps/s390/strncmp-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strncmp.c: Move to ...
* sysdeps/s390/strncmp.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-strncmp.h: New file.
The ifunc handling for strcmp is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
Note: The fallback s390-32/s390-64 ifunc variants with clst instruction
are now moved to the unified strcmp-z900.S file which can be used for
31/64bit. The s390-32/s390-64 files multiarch/strcmp.c and strcmp.S
are deleted.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove strcmp variants.
* sysdeps/s390/Makefile (sysdep_routines): Add strcmp variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for strcmp.
* sysdeps/s390/multiarch/strcmp-vx.S: Move to ...
* sysdeps/s390/strcmp-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strcmp.c: Move to ...
* sysdeps/s390/strcmp.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-strcmp.h: New file.
* sysdeps/s390/s390-64/strcmp.S: Move to ...
* sysdeps/s390/strcmp-z900.S: ... here and adjust to be usable
for 31/64bit and ifunc handling.
* sysdeps/s390/s390-32/multiarch/strcmp.c: Delete file.
* sysdeps/s390/s390-64/multiarch/strcmp.c: Likewise.
* sysdeps/s390/s390-32/strcmp.S: Likewise.
The ifunc handling for strncat is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove strncat variants.
* sysdeps/s390/Makefile (sysdep_routines): Add strncat variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for strncat.
* sysdeps/s390/multiarch/strncat-c.c: Move to ...
* sysdeps/s390/strncat-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strncat-vx.S: Move to ...
* sysdeps/s390/strncat-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strncat.c: Move to ...
* sysdeps/s390/strncat.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-strncat.h: New file.
The ifunc handling for strcat is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove strcat variants.
* sysdeps/s390/Makefile (sysdep_routines): Add strcat variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for strcat.
* sysdeps/s390/multiarch/strcat-c.c: Move to ...
* sysdeps/s390/strcat-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strcat-vx.S: Move to ...
* sysdeps/s390/strcat-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strcat.c: Move to ...
* sysdeps/s390/strcat.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-strcat.h: New file.
The ifunc handling for stpncpy is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove stpncpy variants.
* sysdeps/s390/Makefile (sysdep_routines): Add stpncpy variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for stpncpy.
* sysdeps/s390/multiarch/stpncpy-c.c: Move to ...
* sysdeps/s390/stpncpy-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/stpncpy-vx.S: Move to ...
* sysdeps/s390/stpncpy-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/stpncpy.c: Move to ...
* sysdeps/s390/stpncpy.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-stpncpy.h: New file.
The ifunc handling for strncpy is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
Note: The fallback s390-32/s390-64 ifunc variants are now moved to
the strncpy-z900.S files. The s390-32/s390-64 files multiarch/strncpy.c
and strncpy.S are deleted.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove strncpy variants.
* sysdeps/s390/Makefile (sysdep_routines): Add strncpy variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for strncpy.
* sysdeps/s390/multiarch/strncpy-vx.S: Move to ...
* sysdeps/s390/strncpy-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strncpy.c: Move to ...
* sysdeps/s390/strncpy.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-strncpy.h: New file.
* sysdeps/s390/s390-64/strncpy.S: Move to ...
* sysdeps/s390/s390-64/strncpy-z900.S: ... here
and adjust ifunc handling.
* sysdeps/s390/s390-32/strncpy.S: Move to ...
* sysdeps/s390/s390-32/strncpy-z900.S: ... here
and adjust ifunc handling.
* sysdeps/s390/s390-32/multiarch/strncpy.c: Delete file.
* sysdeps/s390/s390-64/multiarch/strncpy.c: Likewise.
The ifunc handling for stpcpy is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove stpcpy variants.
* sysdeps/s390/Makefile (sysdep_routines): Add stpcpy variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for stpcpy.
* sysdeps/s390/multiarch/stpcpy-c.c: Move to ...
* sysdeps/s390/stpcpy-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/stpcpy-vx.S: Move to ...
* sysdeps/s390/stpcpy-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/stpcpy.c: Move to ...
* sysdeps/s390/stpcpy.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-stpcpy.h: New file.
The ifunc handling for strcpy is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
Note: The fallback s390-32/s390-64 ifunc variants with mvst instruction
are now moved to the unified strcpy-z900.S file which can be used for
31/64bit. The s390-32/s390-64 files multiarch/strcpy.c and strcpy.S
are deleted.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove strcpy variants.
* sysdeps/s390/Makefile (sysdep_routines): Add strcpy variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for strcpy.
* sysdeps/s390/multiarch/strcpy-vx.S: Move to ...
* sysdeps/s390/strcpy-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strcpy.c: Move to ...
* sysdeps/s390/strcpy.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-strcpy.h: New file.
* sysdeps/s390/s390-64/strcpy.S: Move to ...
* sysdeps/s390/strcpy-z900.S: ... here and adjust to be usable
for 31/64bit and ifunc handling.
* sysdeps/s390/s390-32/multiarch/strcpy.c: Delete file.
* sysdeps/s390/s390-64/multiarch/strcpy.c: Likewise.
* sysdeps/s390/s390-32/strcpy.S: Likewise.
The ifunc handling for strnlen is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove strnlen variants.
* sysdeps/s390/Makefile (sysdep_routines): Add strnlen variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for strnlen.
* sysdeps/s390/multiarch/strnlen-c.c: Move to ...
* sysdeps/s390/strnlen-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strnlen-vx.S: Move to ...
* sysdeps/s390/strnlen-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strnlen.c: Move to ...
* sysdeps/s390/strnlen.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-strnlen.h: New file.
The ifunc handling for strlen is adjusted in order to omit ifunc
variants if those will never be used as the minimum architecture level
already supports newer CPUs by default.
Glibc internal calls will then also use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove strlen variants.
* sysdeps/s390/Makefile (sysdep_routines): Add strlen variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for strlen.
* sysdeps/s390/multiarch/strlen-c.c: Move to ...
* sysdeps/s390/strlen-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strlen-vx.S: Move to ...
* sysdeps/s390/strlen-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/strlen.c: Move to ...
* sysdeps/s390/strlen.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-strlen.h: New file.
The new vector variant of memmem is using the common code
implementation, but instead of calling the default
mem* functions, the vector variants are called.
ChangeLog:
* sysdeps/s390/Makefile (sysdep_routines): Add memmem variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc variants for memmem.
* sysdeps/s390/ifunc-memmem.h: New file.
* sysdeps/s390/memmem.c: Likewise.
* sysdeps/s390/memmem-c.c: Likewise.
* sysdeps/s390/memmem-vx.c: Likewise.
The new vector variant of strstr is using the common code
implementation, but instead of calling the default
str* / mem* functions, the vector variants are called.
ChangeLog:
* sysdeps/s390/Makefile (sysdep_routines): Add strstr variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc variants for strstr.
* sysdeps/s390/ifunc-strstr.h: New file.
* sysdeps/s390/strstr.c: Likewise.
* sysdeps/s390/strstr-c.c: Likewise.
* sysdeps/s390/strstr-vx.c: Likewise.
This patch introduces a z13 specific ifunc variant for memmove.
As the common code implementation, it checks if we can copy from
the beginning to the end - with z196 memcpy implementation - or
if we have to copy from the end to the beginning.
The latter case is done by using vector load/store instructions.
If vector instructions are not available, the common-code is
used as fallback. Therefore it is implemented in memmove-c with
a different name.
Furthermore the ifunc logic decides if we need the common-code
implementation at all. If vector instructions are supported
due to the minimum architecture level set we can skip the
common-code ifunc variant.
ChangeLog:
* sysdeps/s390/Makefile (sysdep_routines): Add memmove-c.
* sysdeps/s390/ifunc-memcpy.h (HAVE_MEMMOVE_IFUNC,
HAVE_MEMMOVE_IFUNC_AND_VX_SUPPORT, MEMMOVE_DEFAULT,
HAVE_MEMMOVE_C, MEMMOVE_C, HAVE_MEMMOVE_Z13, MEMMOVE_Z13):
New defines.
* sysdeps/s390/memcpy-z900.S: Add z13 memmove implementation.
* sysdeps/s390/memmove-c.c: New file.
* sysdeps/s390/memmove.c: Likewise.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc variants for memmove.
Add a configure check for z13 in the same way as done for z196.
ChangeLog:
* config.h.in (HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT): New undefine.
* sysdeps/s390/configure.ac: Add check for z13 support.
* sysdeps/s390/configure: Regenerated.
The s390/s390x memcpy implementations are safe to be
used by memmove. Starting with this commit, memmove is
using memcpy for the forward cases on s390.
ChangeLog:
* sysdeps/s390/memcopy.h: New file.
Nowadays gcc is automatically replacing a call to bcopy
with a call to memmove. Thus only old binaries will call
the s390 specific bcopy implementation.
The s390 specific implementation is using an own
implementation for memcpy in the forward case and is
relying on memmove in the backward case.
After removing the s390 specific bcopy, the common code
bcopy is used. It just performs a tail call to memmove.
ChangeLog:
* sysdeps/s390/s390-32/bcopy.S: Remove.
* sysdeps/s390/s390-64/bcopy.S: Likewise.
This patch moves all ifunc variants for memcpy/mempcpy
to sysdeps/s390/memcpy-z900.S. The configure-check/preprocessor logic
in sysdeps/s390/ifunc-memcpy.h decides if ifunc is needed at all
and which ifunc variants should be available.
E.g. if the compiler/assembler already supports z196 by default,
the older ifunc variants are not included.
If we only need the newest ifunc variant,
then we can skip ifunc at all.
Therefore the ifunc-resolvers and __libc_ifunc_impl_list are adjusted
in order to handle only the available ifunc variants.
ChangeLog:
* sysdeps/s390/ifunc-memcpy.h: New File.
* sysdeps/s390/memcpy.S: Move to ...
* sysdeps/s390/memcpy-z900.S ... here.
Move implementations from memcpy-s390x.s to here.
* sysdeps/s390/multiarch/memcpy-s390x.S: Delete File.
* sysdeps/s390/multiarch/Makefile (sysdep_routines):
Remove memcpy/mempcpy variants.
* sysdeps/s390/Makefile (sysdep_routines):
Add memcpy/mempcpy variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Adjust ifunc variants for
memcpy and mempcpy.
* sysdeps/s390/multiarch/memcpy.c: Move ifunc resolver
to ...
* sysdeps/s390/memcpy.c: ... here.
Adjust ifunc variants for memcpy.
* sysdeps/s390/multiarch/mempcpy.c: Move to ...
* sysdeps/s390/mempcpy.c: ... here.
Adjust ifunc variants for mempcpy.
* sysdeps/s390/mempcpy.S: Delete file.
The implementation of memcpy/mempcpy for s390-32 (31bit)
and s390-64 (64bit) is nearly the same.
This patch unifies it for maintability reasons.
__mem[p]cpy_z10 and __mem[p]cpy_z196 differs between 31 and 64bit:
-31bit needs .machinemode "zarch_nohighgprs" and llgfr %r4,%r4
-lr vs lgr; lgr can be also used on 31bit as this ifunc variant
is only called if we are on a zarch machine.
__mem[p]cpy_default differs between 31 and 64bit:
-Some 31bit vs 64bit instructions (e.g. ltr vs ltgr.
Solved with 31/64 specific instruction macros).
-The address of mvc instruction is setup in different ways
(larl vs bras). Solved with #if defined __s390x__.
__memcpy_mvcle differs between 31 and 64bit:
-lr vs lgr; ahi vs aghi;
Solved with 31/64bit specific instruction macros.
Otherwise 31/64bit implementation has the same structure of the code.
ChangeLog:
* sysdeps/s390/s390-64/memcpy.S: Move to ...
* sysdeps/s390/memcpy.S: ... here.
Adjust to be usable for 31/64bit.
* sysdeps/s390/s390-32/memcpy.S: Delete File.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add memcpy.
* sysdeps/s390/s390-32/multiarch/Makefile: Delete file.
* sysdeps/s390/s390-64/multiarch/Makefile: Likewise.
* sysdeps/s390/s390-64/multiarch/memcpy-s390x.S: Move to ...
* sysdeps/s390/multiarch/memcpy-s390x.S: ... here.
Adjust to be usable for 31/64bit.
* sysdeps/s390/s390-32/multiarch/memcpy-s390.S: Delete File.
* sysdeps/s390/s390-64/multiarch/memcpy.c: Move to ...
* sysdeps/s390/multiarch/memcpy.c: ... here.
* sysdeps/s390/s390-32/multiarch/memcpy.c: Delete File.
This patch moves all ifunc variants for memcmp
to sysdeps/s390/memcmp-z900.S. The configure-check/preprocessor logic
in sysdeps/s390/ifunc-memcmp.h decides if ifunc is needed at all
and which ifunc variants should be available.
E.g. if the compiler/assembler already supports z196 by default,
the older ifunc variants are not included.
If we only need the newest ifunc variant,
then we can skip ifunc at all.
Therefore the ifunc-resolvers and __libc_ifunc_impl_list are adjusted
in order to handle only the available ifunc variants.
ChangeLog:
* sysdeps/s390/ifunc-memcmp.h: New File.
* sysdeps/s390/memcmp.S: Move to ...
* sysdeps/s390/memcmp-z900.S ... here.
Move implementations from memcmp-s390x.s to here.
* sysdeps/s390/multiarch/memcmp-s390x.S: Delete File.
* sysdeps/s390/multiarch/Makefile (sysdep_routines):
Remove memcmp variants.
* sysdeps/s390/Makefile (sysdep_routines):
Add memcmp variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Adjust ifunc variants for
memcmp.
* sysdeps/s390/multiarch/memcmp.c: Move ifunc resolver
to ...
* sysdeps/s390/memcmp.c: ... here.
Adjust ifunc variants for memcmp.
The implementation of memcmp for s390-32 (31bit) and
s390-64 (64bit) is nearly the same.
This patch unifies it for maintability reasons.
__memcmp_z10 and __memcmp_z196 differs between 31 and 64bit:
-31bit needs .machinemode "zarch_nohighgprs" and llgfr %r4,%r4
-lr vs lgr and some other instructions:
But lgr and co can be also used on 31bit as this ifunc variant
is only called if we are on a zarch machine.
__memcmp_default differs between 31 and 64bit:
-Some 31bit vs 64bit instructions (e.g. ltr vs ltgr.
Solved with 31/64 specific instruction macros).
-The address of mvc instruction is setup in different ways
(larl vs bras). Solved with #if defined __s390x__.
Otherwise 31/64bit implementation has the same structure of the code.
ChangeLog:
* sysdeps/s390/s390-64/memcmp.S: Move to ...
* sysdeps/s390/memcmp.S: ... here.
Adjust to be usable for 31/64bit.
* sysdeps/s390/s390-32/memcmp.S: Delete File.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add memcmp.
* sysdeps/s390/s390-32/multiarch/Makefile (sysdep_routines):
Remove memcmp.
* sysdeps/s390/s390-64/multiarch/Makefile: Likewise.
* sysdeps/s390/s390-64/multiarch/memcmp-s390x.S: Move to ...
* sysdeps/s390/multiarch/memcmp-s390x.S: ... here.
Adjust to be usable for 31/64bit.
* sysdeps/s390/s390-32/multiarch/memcmp-s390.S: Delete File.
* sysdeps/s390/s390-64/multiarch/memcmp.c: Move to ...
* sysdeps/s390/multiarch/memcmp.c: ... here.
* sysdeps/s390/s390-32/multiarch/memcmp.c: Delete File.
This patch moves all ifunc variants for memset
to sysdeps/s390/memset-z900.S. The configure-check/preprocessor logic
in sysdeps/s390/ifunc-memset.h decides if ifunc is needed at all
and which ifunc variants should be available.
E.g. if the compiler/assembler already supports z196 by default,
the older ifunc variants are not included.
If we only need the newest ifunc variant,
then we can skip ifunc at all.
Therefore the ifunc-resolvers and __libc_ifunc_impl_list are adjusted
in order to handle only the available ifunc variants.
ChangeLog:
* sysdeps/s390/ifunc-memset.h: New File.
* sysdeps/s390/memset.S: Move to ...
* sysdeps/s390/memset-z900.S ... here.
Move implementations from memset-s390x.s to here.
* sysdeps/s390/multiarch/memset-s390x.S: Delete File.
* sysdeps/s390/multiarch/Makefile (sysdep_routines):
Remove memset variants.
* sysdeps/s390/Makefile (sysdep_routines):
Add memset variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Adjust ifunc variants for
memset.
* sysdeps/s390/multiarch/memset.c: Move ifunc resolver
to ...
* sysdeps/s390/memset.c: ... here.
Adjust ifunc variants for memset.
The implementation of memset for s390-32 (31bit) and
s390-64 (64bit) is nearly the same.
This patch unifies it for maintability reasons.
__memset_z10 and __memset_z196 differs between 31 and 64bit:
-31bit needs .machinemode "zarch_nohighgprs" and llgfr %r4,%r4
-lr vs lgr and some other instructions:
But lgr and co can be also used on 31bit as this ifunc variant
is only called if we are on a zarch machine.
__memset_default differs between 31 and 64bit:
-Some 31bit vs 64bit instructions (e.g. ltr vs ltgr.
Solved with 31/64 specific instruction macros).
-The address of mvc instruction is setup in different ways
(larl vs bras). Solved with #if defined __s390x__.
Otherwise 31/64bit implementation has the same structure of the code.
ChangeLog:
* sysdeps/s390/s390-64/memset.S: Move to ...
* sysdeps/s390/memset.S: ... here.
Adjust to be usable for 31/64bit.
* sysdeps/s390/s390-32/memset.S: Delete File.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add memset.
* sysdeps/s390/s390-32/multiarch/Makefile (sysdep_routines):
Remove memset.
* sysdeps/s390/s390-64/multiarch/Makefile: Likewise.
* sysdeps/s390/s390-64/multiarch/memset-s390x.S: Move to ...
* sysdeps/s390/multiarch/memset-s390x.S: ... here.
Adjust to be usable for 31/64bit.
* sysdeps/s390/s390-32/multiarch/memset-s390.S: Delete File.
* sysdeps/s390/s390-64/multiarch/memset.c: Move to ...
* sysdeps/s390/multiarch/memset.c: ... here.
* sysdeps/s390/s390-32/multiarch/memset.c: Delete File.
The renaming of hwcap arguments in ifunc-resolvers is needed
in order to prepare for further commits which refactors
ifunc handling for memset, memcmp, and memcpy. Now you are able
to use s390_libc_ifunc_init which stores the stfle bits
within the expression for an ifunc-resolver generated by
s390_libc_ifunc_expr.
ChangeLog:
* sysdeps/s390/multiarch/ifunc-resolve.h
(s390_libc_ifunc_init, s390_libc_ifunc,
s390_vx_libc_ifunc2_redirected): Use hwcap instead of dl_hwcap.
Add a configure check for z10 in the same way as done for z196.
ChangeLog:
* config.h.in (HAVE_S390_MIN_Z10_ZARCH_ASM_SUPPORT): New undefine.
* sysdeps/s390/configure.ac: Add check for z10 support.
* sysdeps/s390/configure: Regenerated.
Merge i386 and x86_64 atomic-machine.h to x86 atomic-machine.h.
Tested on i686 and x86_64 as well as with build-many-glibcs.py.
* sysdeps/i386/atomic-machine.h: Merged with ...
* sysdeps/x86_64/atomic-machine.h: To ...
* sysdeps/x86/atomic-machine.h: This. New file.
GCC mainline now gives errors for an asm that clobbers the stack
pointer. According to
<https://gcc.gnu.org/ml/gcc-patches/2018-12/msg00932.html> GCC
previously ignored such a clobber; thus, this patch removes it from
the clobbers for ia64 syscalls.
Tested with build-many-glibcs.py for ia64-linux-gnu.
* sysdeps/unix/sysv/linux/ia64/sysdep.h (ASM_CLOBBERS_6_COMMON):
Do not clobber r12.
Continuing the process of building up and using Python infrastructure
for extracting and using values in headers, this patch adds a test
that MAP_* constants from sys/mman.h agree with those in the Linux
kernel headers. (Other sys/mman.h constants could be added to the
test separately.)
This set of constants has grown over time, so the generic code is
enhanced to allow saying extra constants are OK on either side of the
comparison (where the caller sets those parameters based on the Linux
kernel headers version, compared with the version the headers were
last updated from). Although the test is a custom Python file, my
intention is to move in future to a single Python script for such
tests and text files it takes as inputs, once there are enough
examples to provide a guide to the common cases in such tests (I'd
like to end up with most or all such sets of constants copied from
kernel headers having such tests, and likewise for structure layouts
from the kernel).
The Makefile code is essentially the same as for tst-signal-numbers,
but I didn't try to find an object file to depend on to represent the
dependency on the headers used by the test (the conform/ tests don't
try to represent such header dependencies at all, for example).
Tested with build-many-glibcs.py, and also for x86_64 with older
kernel headers.
* scripts/glibcextract.py (compare_macro_consts): Take parameters
to allow extra macros from first or second sources.
* sysdeps/unix/sysv/linux/tst-mman-consts.py: New file.
* sysdeps/unix/sysv/linux/Makefile [$(subdir) = misc]
(tests-special): Add $(objpfx)tst-mman-consts.out.
($(objpfx)tst-mman-consts.out): New makefile target.
Linux kernel have remove stat64 family from default syscall set, new
implementations with statx is needed when __ARCH_WANT_STAT64 is not
define. This patch add conditionals for relevant functions, using statx
system call to get information and then copy to the return buf, ref to
include/linux/fs.h from linux kernel.
* sysdeps/unix/sysv/linux/Makefile: Add statx_cp.c.
* sysdeps/unix/sysv/linux/fxstat64.c: Add conditionals for kernel
without stat64 system call support.
* sysdeps/unix/sysv/linux/fxstatat64.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat64.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/xstat.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/xstat64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/statx_cp.c: New file.
* sysdeps/unix/sysv/linux/statx_cp.c: Likewise.
* sysdeps/unix/sysv/linux/statx_cp.h: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/statx_cp.c: Likewise.
Continuing the removal of bits/mathinline.h inlines that would better
be done by the compiler, this patch removes x86 inlines for asinh,
acosh and atanh functions (only for fast-math, non-SSE 32-bit x86).
I've filed <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88502> for
adding such inlines as an optimization in GCC.
Tested for x86_64 and x86.
* sysdeps/x86/fpu/bits/mathinline.h (asinh): Remove inline
definition.
(acosh): Likewise.
(atanh): Likewise.
GCC mainline now gives errors for an asm that clobbers the stack
pointer. According to
<https://gcc.gnu.org/ml/gcc-patches/2018-12/msg00932.html> GCC
previously ignored such a clobber; thus, this patch removes it from
_hurd_stack_setup.
Tested with build-many-glibcs.py for i686-gnu.
* sysdeps/mach/hurd/i386/init-first.c (_hurd_stack_setup): Do not
clobber sp.
This patch fix Hygon Dhyana processor CPU Vendor ID detection
problem in glibc sysdep module, current glibc codes doesn't
recognize Dhyana CPU Vendor ID("HygonGenuine") and set kind to
arch_kind_other, which result to incorrect zero value for
__cache_sysconf() syscall. As Hygon Dhyana share most
architecture feature as AMD Family 17h, this patch add Hygon CPU
Vendor ID check and setup kind to arch_kind_amd and reuse AMD
code path, which lead to correct return value in
__cache_sysconf() syscall. we run the glibc test suite for both
Hygon Dhyana and AMD EPYC and found no failure case.
Background:
Chengdu Haiguang IC Design Co., Ltd (Hygon) is a Joint Venture
between AMD and Haiguang Information Technology Co.,Ltd., aims at
providing high performance x86 processor for China server market.
Its first generation processor codename is Dhyana, which
originates from AMD technology and shares most of the
architecture with AMD's family 17h, but with different CPU Vendor
ID("HygonGenuine")/Family series number(Family 18h).
Related Hygon kernel patch can be found on
http://lkml.kernel.org/r/5ce86123a7b9dad925ac583d88d2f921040e859b.1538583282.git.puwen@hygon.cn
Signed-off-by: fanjinke <fanjinke@hygon.cn>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Continuing the removal of bits/mathinline.h inlines that would better
be done by the compiler, this patch removes an x86 inline for hypot
functions (only for fast-math, only for non-SSE 32-bit x86). I've
filed <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88474> for adding
such an inline as an optimization in GCC.
Tested for x86_64 and x86.
* sysdeps/x86/fpu/bits/mathinline.h (hypot): Remove inline
definition.
The “any later version” clause was missing. This change was approved
in principle by the FSF in RT ticket #1316403.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Add CFI information about the offset of registers stored in the stack
frame.
[BZ #23614]
* sysdeps/powerpc/powerpc64/addmul_1.S (FUNC): Add CFI offset for
registers saved in the stack frame.
* sysdeps/powerpc/powerpc64/lshift.S (__mpn_lshift): Likewise.
* sysdeps/powerpc/powerpc64/mul_1.S (__mpn_mul_1): Likewise.
Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
Reviewed-by: Gabriel F. T. Gomes <gabriel@inconstante.eti.br>
The threshold value at which powf overflows depends on the rounding mode
and the current check did not take this into account. So when the result
was rounded away from zero it could become infinity without setting
errno to ERANGE.
Example: pow(0x1.7ac7cp+5, 23) is 0x1.fffffep+127 + 0.1633ulp
If the result goes above 0x1.fffffep+127 + 0.5ulp then errno is set,
which is fine in nearest rounding mode, but
powf(0x1.7ac7cp+5, 23) is inf in upward rounding mode
powf(-0x1.7ac7cp+5, 23) is -inf in downward rounding mode
and the previous implementation did not set errno in these cases.
The fix tries to avoid affecting the common code path or calling a
function that may introduce a stack frame, so float arithmetics is used
to check the rounding mode and the threshold is selected accordingly.
[BZ #23961]
* math/auto-libm-test-in: Add new test case.
* math/auto-libm-test-out-pow: Regenerated.
* sysdeps/ieee754/flt-32/e_powf.c (__powf): Fix overflow check.
This patch converts the tst-signal-numbers test from shell + awk to
Python.
As with gen-as-const, the point is not so much that shell and awk are
problematic for this code, as that it's useful to build up general
infrastructure in Python for use of a range of code involving
extracting values from C headers. This patch moves some code from
gen-as-const.py to a new glibcextract.py, which also gains functions
relating to listing macros, and comparing the values of a set of
macros from compiling two different pieces of code.
It's not just signal numbers that should have such tests; pretty much
any case where glibc copies constants from Linux kernel headers should
have such tests that the values and sets of constants agree except
where differences are known to be OK. Much the same also applies to
structure layouts (although testing those without hardcoding lists of
fields to test will be more complicated).
Given this patch, another test for a set of macros would essentially
be just a call to glibcextract.compare_macro_consts (plus boilerplate
code - and we could move to having separate text files defining such
tests, like the .sym inputs to gen-as-const, so that only a single
Python script is needed for most such tests). Some such tests would
of course need new features, e.g. where the set of macros changes in
new kernel versions (so you need to allow new macro names on the
kernel side if the kernel headers are newer than the version known to
glibc, and extra macros on the glibc side if the kernel headers are
older). tst-syscall-list.sh could become a Python script that uses
common code to generate lists of macros but does other things with its
own custom logic.
There are a few differences from the existing shell + awk test.
Because the new test evaluates constants using the compiler, no
special handling is needed any more for one signal name being defined
to another. Because asm/signal.h now needs to pass through the
compiler, not just the preprocessor, stddef.h is included as well
(given the asm/signal.h issue that it requires an externally provided
definition of size_t). The previous code defined __ASSEMBLER__ with
asm/signal.h; this is removed (__ASSEMBLY__, a different macro,
eliminates the requirement for stddef.h on some but not all
architectures).
Tested for x86_64, and with build-many-glibcs.py.
* scripts/glibcextract.py: New file.
* scripts/gen-as-const.py: Do not import os.path, re, subprocess
or tempfile. Import glibcexctract.
(compute_c_consts): Remove. Moved to glibcextract.py.
(gen_test): Update reference to compute_c_consts.
(main): Likewise.
* sysdeps/unix/sysv/linux/tst-signal-numbers.py: New file.
* sysdeps/unix/sysv/linux/tst-signal-numbers.sh: Remove.
* sysdeps/unix/sysv/linux/Makefile
($(objpfx)tst-signal-numbers.out): Use tst-signal-numbers.py.
Redirect stderr as well as stdout.
I have tested that this builds and the resulting program still work.
This was tested on gcc23.fsffrance.org, and for some reason the vdso
there seems unused even when using shared libraries.
[BZ #19767]
* sysdeps/unix/sysv/linux/mips/init-first.c: Remove #ifdef SHARED.
* sysdeps/unix/sysv/linux/mips/libc-vdso.h: Remove #ifdef SHARED.
* sysdeps/unix/sysv/linux/mips/mips32/sysdep.h: Define
ALWAYS_USE_VSYSCALL.
* sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h: Define
ALWAYS_USE_VSYSCALL.
* sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h: Define
ALWAYS_USE_VSYSCALL.
Along with posix_spawn_file_actions_addchdir,
posix_spawn_file_actions_addfchdir is the subject of a change proposal
for POSIX: <http://austingroupbugs.net/view.php?id=1208>
After all that prep work, nldbl-compat.c can now use PRINTF_LDBL_IS_DBL
instead of __no_long_double to control the behavior of printf-like
functions; this is the last thing we needed __no_long_double for, so it
can go away entirely.
Tested for powerpc and powerpc64le.
The _chk variants of all of the printf functions become much simpler.
This is the last thing that we needed _IO_acquire_lock_clear_flags2
for, so it can go as well. I took the opportunity to make the headers
included and the names of all local variables consistent across all the
affected files.
Since we ultimately want to get rid of __no_long_double as well, it
must be possible to get all of the nontrivial effects of the _chk
functions by calling the _internal functions with appropriate flags.
For most of the __(v)xprintf_chk functions, this is covered by
PRINTF_FORTIFY plus some up-front argument checks that can be
duplicated. However, __(v)sprintf_chk installs a custom jump table so
that it can crash instead of overflowing the output buffer. This
functionality is moved to __vsprintf_internal, which now has a
'maxlen' argument like __vsnprintf_internal; to get the unsafe
behavior of ordinary (v)sprintf, pass -1 for that argument.
obstack_printf_chk and obstack_vprintf_chk are no longer in the same
file.
As a side-effect of the unification of both fortified and non-fortified
vdprintf initialization, this patch fixes bug 11319 for __dprintf_chk
and __vdprintf_chk, which was previously fixed only for dprintf and
vdprintf by the commit
commit 7ca890b88e
Author: Ulrich Drepper <drepper@redhat.com>
Date: Wed Feb 24 16:07:57 2010 -0800
Fix reporting of I/O errors in *dprintf functions.
This patch adds a test case to avoid regressions.
Tested for powerpc and powerpc64le.
__nldbl___vsyslog_chk will ultimately want to pass PRINTF_LDBL_IS_DBL
down to __vfprintf_internal *as well as* possibly setting PRINTF_FORTIFY.
To make that possible, we need a __vsyslog_internal that takes the
same flags as printf. The code in misc/syslog.c does also get a
little simpler.
Tested for powerpc and powerpc64le.
There are a lot more printf variants than there are scanf variants,
and the code for setting up and tearing down their custom FILE
variants around the call to __vf(w)printf is more complicated and
variable. Therefore, I have added _internal versions of all the
v*printf variants, rather than introducing helper routines so that
they can all directly call __vf(w)printf_internal, as was done with
scanf.
As with the scanf changes, in this patch the _internal functions still
look at the environmental mode bits and all callers pass 0 for the
flags parameter.
Several of the affected public functions had _IO_ name aliases that
were not exported (but, in one case, appeared in libio.h anyway);
I was originally planning to leave them as aliases to avoid having
to touch internal callers, but it turns out ldbl_*_alias only work
for exported symbols, so they've all been removed instead. It also
turns out there were hardly any internal callers. _IO_vsprintf and
_IO_vfprintf *are* exported, so those two stick around.
Summary for the changes to each of the affected symbols:
_IO_vfprintf, _IO_vsprintf:
All internal calls removed, thus the internal declarations, as well
as uses of libc_hidden_proto and libc_hidden_def, were also removed.
The external symbol is now exposed via uses of ldbl_strong_alias
to __vfprintf_internal and __vsprintf_internal, respectively.
_IO_vasprintf, _IO_vdprintf, _IO_vsnprintf,
_IO_vfwprintf, _IO_vswprintf,
_IO_obstack_vprintf, _IO_obstack_printf:
All internal calls removed, thus declaration in internal headers
were also removed. They were never exported, so there are no
aliases tying them to the internal functions. I.e.: entirely gone.
__vsnprintf:
Internal calls were always preceded by macros such as
#define __vsnprintf _IO_vsnprintf, and
#define __vsnprintf vsnprintf
The macros were removed and their uses replaced with calls to the
new internal function __vsnprintf_internal. Since there were no
internal calls, the internal declaration was also removed. The
external symbol is preserved with ldbl_weak_alias to ___vsnprintf.
__vfwprintf:
All internal calls converted into calls to __vfwprintf_internal,
thus the internal declaration was removed. The function is now a
wrapper that calls __vfwprintf_internal. The external symbol is
preserved.
__vswprintf:
Similarly, but no external symbol.
__vasprintf, __vdprintf, __vfprintf, __vsprintf:
New internal wrappers. Not exported.
vasprintf, vdprintf, vfprintf, vsprintf, vsnprintf,
vfwprintf, vswprintf,
obstack_vprintf, obstack_printf:
These functions used to be aliases to the respective _IO_* function,
they are now aliases to their respective __* functions.
Tested for powerpc and powerpc64le.
