If the architecture level set is high enough, no IFUNCs are used at
all and the variable i would be unused. Then the build fails with:
../sysdeps/s390/multiarch/ifunc-impl-list.c: In function ‘__libc_ifunc_impl_list’:
../sysdeps/s390/multiarch/ifunc-impl-list.c:76:10: error: unused variable ‘i’ [-Werror=unused-variable]
76 | size_t i = max;
| ^
cc1: all warnings being treated as errors
Add a proper bounds check to __libc_ifunc_impl_list. This makes MAX_IFUNC
redundant and fixes several targets that will write outside the array.
To avoid unnecessary large diffs, pass the maximum in the argument 'i' to
IFUNC_IMPL_ADD - 'max' can be used in new ifunc definitions and existing
ones can be updated if desired.
Passes buildmanyglibc.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
I used these shell commands:
../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")
and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.
I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah. I don't
know why I run into these diagnostics whereas others evidently do not.
remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
The arch13 memmove variant is currently selected by the ifunc selector
if the Miscellaneous-Instruction-Extensions Facility 3 facility bit
is present, but the function is also using vector instructions.
If the vector support is not present, one is receiving an operation
exception.
Therefore this patch also checks for vector support in the ifunc
selector and in ifunc-impl-list.c.
Just to be sure, the configure check is now also testing an arch13
vector instruction and an arch13 Miscellaneous-Instruction-Extensions
Facility 3 instruction.
I used these shell commands:
../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")
and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
This patch introduces the new arch13 ifunc variant for memmem.
For needles longer than 9 bytes it is relying on the common-code
implementation. For shorter needles it is using the new vstrs instruction
which is able to search a substring within a vector register.
ChangeLog:
* sysdeps/s390/Makefile (sysdep_routines): Add memmem-arch13.
* sysdeps/s390/ifunc-memmem.h (HAVE_MEMMEM_ARCH13, MEMMEM_ARCH13,
MEMMEM_Z13_ONLY_USED_AS_FALLBACK, HAVE_MEMMEM_IFUNC_AND_ARCH13_SUPPORT):
New defines.
* sysdeps/s390/memmem-arch13.S: New file.
* sysdeps/s390/memmem-vx.c: Omit GI symbol for z13 memmem ifunc variant
if it is only used as fallback.
* sysdeps/s390/memmem.c (memmem): Add arch13 variant in ifunc selector.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc variant for arch13 memmem.
This patch introduces the new arch13 ifunc variant for strstr.
For needles longer than 9 charachters it is relying on the common-code
implementation. For shorter needles it is using the new vstrs instruction
which is able to search a substring within a vector register.
ChangeLog:
* sysdeps/s390/Makefile (sysdep_routines): Add strstr-arch13.
* sysdeps/s390/ifunc-strstr.h (HAVE_STRSTR_ARCH13, STRSTR_ARCH13,
STRSTR_Z13_ONLY_USED_AS_FALLBACK, HAVE_STRSTR_IFUNC_AND_ARCH13_SUPPORT):
New defines.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc variant for arch13 strstr.
* sysdeps/s390/strstr-arch13.S: New file.
* sysdeps/s390/strstr-vx.c: Omit GI symbol for z13 strstr ifunc variant
if it is only used as fallback.
* sysdeps/s390/strstr.c (strstr): Add arch13 variant in ifunc selector.
This patch introduces the new arch13 ifunc variant for memmove.
For the forward or non-overlapping case it is just using memcpy.
For the backward case it relies on the new instruction mvcrl.
The instruction copies up to 256 bytes at once.
In case of an overlap, it copies the bytes like copying them
one by one starting from right to left.
ChangeLog:
* sysdeps/s390/ifunc-memcpy.h (HAVE_MEMMOVE_ARCH13, MEMMOVE_ARCH13
HAVE_MEMMOVE_IFUNC_AND_ARCH13_SUPPORT): New defines.
* sysdeps/s390/memcpy-z900.S: Add arch13 memmove implementation.
* sysdeps/s390/memmove.c (memmove): Add arch13 variant in
ifunc selector.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc variant for arch13 memmove.
* sysdeps/s390/multiarch/ifunc-resolve.h (S390_STFLE_BITS_ARCH13_MIE3,
S390_IS_ARCH13_MIE3): New defines.
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.
