An attempt to re-create a different PTY under the same name can fail
if the PTY has a very high number. Try to increase the file
descriptor limit in this case, and bail out if this still does not
allow the test to proceed.
This patch wraps all uses of *_{enable,disable}_asynccancel and
and *_CANCEL_{ASYNC,RESET} in either already provided macros
(lll_futex_timed_wait_cancel) or creates new ones if the
functionality is not provided (SYSCALL_CANCEL_NCS, lll_futex_wait_cancel,
and lll_futex_timed_wait_cancel).
Also for some generic implementations, the direct call of the macros
are removed since the underlying symbols are suppose to provide
cancellation support.
This is a priliminary patch intended to simplify the work required
for BZ#12683 fix. It is a refactor change, no semantic changes are
expected.
Checked on x86_64-linux-gnu and i686-linux-gnu.
* nptl/pthread_join_common.c (__pthread_timedjoin_ex): Use
lll_wait_tid with timeout.
* nptl/sem_wait.c (__old_sem_wait): Use lll_futex_wait_cancel.
* sysdeps/nptl/aio_misc.h (AIO_MISC_WAIT): Use
futex_reltimed_wait_cancelable for cancelabla mode.
* sysdeps/nptl/gai_misc.h (GAI_MISC_WAIT): Likewise.
* sysdeps/posix/open64.c (__libc_open64): Do not call cancelation
macros.
* sysdeps/posix/sigwait.c (__sigwait): Likewise.
* sysdeps/posix/waitid.c (__sigwait): Likewise.
* sysdeps/unix/sysdep.h (__SYSCALL_CANCEL_CALL,
SYSCALL_CANCEL_NCS): New macro.
* sysdeps/nptl/lowlevellock.h (lll_wait_tid): Add timeout argument.
(lll_timedwait_tid): Remove macro.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h (lll_wait_tid):
Likewise.
(lll_timedwait_tid): Likewise.
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h (lll_wait_tid):
Likewise.
(lll_timedwait_tid): Likewise.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h (lll_wait_tid):
Likewise.
(lll_timedwait_tid): Likewise.
* sysdeps/unix/sysv/linux/clock_nanosleep.c (__clock_nanosleep):
Use INTERNAL_SYSCALL_CANCEL.
* sysdeps/unix/sysv/linux/futex-internal.h
(futex_reltimed_wait_cancelable): Use LIBC_CANCEL_{ASYNC,RESET}
instead of __pthread_{enable,disable}_asynccancel.
* sysdeps/unix/sysv/linux/lowlevellock-futex.h
(lll_futex_wait_cancel): New macro.
The x86 defines optimized THREAD_ATOMIC_* macros where reference always
the current thread instead of the one indicated by input 'descr' argument.
It work as long the input is the self thread pointer, however it generates
wrong code if the semantic is to set a bit atomicialy from another thread.
This is not an issue for current GLIBC usage, however the new cancellation
code expects that some synchronization code to atomically set bits from
different threads.
If some usage indeed proves to be a hotspot we can add an extra macro
with a more descriptive name (THREAD_ATOMIC_BIT_SET_SELF for instance)
where i386 might optimize it.
Checked on i686-linux-gnu.
* sysdeps/i686/nptl/tls.h (THREAD_ATOMIC_CMPXCHG_VAL,
THREAD_ATOMIC_AND, THREAD_ATOMIC_BIT_SET): Remove macros.
The x86 defines optimized THREAD_ATOMIC_* macros where reference always
the current thread instead of the one indicated by input 'descr' argument.
It work as long the input is the self thread pointer, however it generates
wrong code if the semantic is to set a bit atomicialy from another thread.
This is not an issue for current GLIBC usage, however the new cancellation
code expects that some synchronization code to atomically set bits from
different threads.
The generic code generates an additional load to reference to TLS segment,
for instance the code:
THREAD_ATOMIC_BIT_SET (THREAD_SELF, cancelhandling, CANCELED_BIT);
Compiles to:
lock;orl $4, %fs:776
Where with patch changes it now compiles to:
mov %fs:16,%rax
lock;orl $4, 776(%rax)
If some usage indeed proves to be a hotspot we can add an extra macro
with a more descriptive name (THREAD_ATOMIC_BIT_SET_SELF for instance)
where x86_64 might optimize it.
Checked on x86_64-linux-gnu.
* sysdeps/x86_64/nptl/tls.h (THREAD_ATOMIC_CMPXCHG_VAL,
THREAD_ATOMIC_AND, THREAD_ATOMIC_BIT_SET): Remove macros.
With upcoming fix for BZ#12683, pthread cancellation does not act for:
1. If syscall is blocked but with some side effects already having
taken place (e.g. a partial read or write).
2. After the syscall has returned.
The main change is due the fact programs need to act in syscalls with
side-effects (for instance, to avoid leak of allocated resources or
handle partial read/write).
This patch changes the NPTL testcase that assumes the old behavior and
also changes the tst-backtrace{5,6} to ignore the cancellable wrappers.
Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu,
powerpc-linux-gnu, sparcv9-linux-gnu, and sparc64-linux-gnu.
* debug/tst-backtrace5.c (handle_signal): Avoid cancellable wrappers
in backtrace analysis.
* nptl/tst-cancel4.c (tf_write): Handle cancelled syscall with
side-effects.
(tf_send): Likewise.
bits/hwcap.h should be updated together with dl-procinfo.c.
* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h: Add comment.
* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c (_DL_HWCAP_COUNT):
Update.
Austin Group issue #411 [1] proposes that posix_spawn file action
posix_spawn_file_actions_adddup2 resets the close-on-exec when
source and destination refer to same file descriptor.
It solves the issue on multi-thread applications which uses
close-on-exec as default, and want to hand-chose specifically
file descriptor to purposefully inherited into a child process.
Current approach to achieve this scenario is to use two adddup2 file
actions and a temporary file description which do not conflict with
any other, coupled with a close file action to avoid leaking the
temporary file descriptor. This approach, besides being complex,
may fail with EMFILE/ENFILE file descriptor exaustion.
This can be more easily accomplished with an in-place removal of
FD_CLOEXEC. Although the resulting adddup2 semantic is slight
different than dup2 (equal file descriptors should be handled as
no-op), the proposed possible solution are either more complex
(fcntl action which a limited set of operations) or results in
unrequired operations (dup3 which also returns EINVAL for same
file descriptor).
Checked on aarch64-linux-gnu.
[BZ #23640]
* posix/tst-spawn.c (do_prepare, handle_restart, do_test): Add
posix_spawn_file_actions_adddup2 test to check O_CLOCEXEC reset.
* sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Add
close-on-exec reset for adddup2 file action.
* sysdeps/posix/spawni.c (__spawni_child): Likewise.
[1] http://austingroupbugs.net/view.php?id=411
The only difference between noncompliant and C99-compliant scanf is
that the former accepts the archaic GNU extension '%as' (also %aS and
%a[...]) meaning to allocate space for the input string with malloc.
This extension conflicts with C99's use of %a as a format _type_
meaning to read a floating-point number; POSIX.1-2008 standardized
equivalent functionality using the modifier letter 'm' instead (%ms,
%mS, %m[...]).
The extension was already disabled in most conformance modes:
specifically, any mode that doesn't involve _GNU_SOURCE and _does_
involve either strict conformance to C99 or loose conformance to both
C99 and POSIX.1-2001 would get the C99-compliant scanf. With
compilers new enough to use -std=gnu11 instead of -std=gnu89, or
equivalent, that includes the default mode.
With this patch, we now provide C99-compliant scanf in all
configurations except when _GNU_SOURCE is defined *and*
__STDC_VERSION__ or __cplusplus (whichever is relevant) indicates
C89/C++98. This leaves the old scanf available under e.g. -std=c89
-D_GNU_SOURCE, but removes it from e.g. -std=gnu11 -D_GNU_SOURCE (it
was already not present under -std=gnu11 without -D_GNU_SOURCE) and
from -std=gnu89 without -D_GNU_SOURCE.
There needs to be an internal override so we can compile the
noncompliant scanf itself. This is the same problem we had when we
removed 'gets' from _GNU_SOURCE and it's dealt with the same way:
there's a new __GLIBC_USE symbol, DEPRECATED_SCANF, which defaults to
off under the appropriate conditions for external code, but can be
overridden by individual files within stdio.
We also run into problems with PLT bypass for internal uses of sscanf,
because libc_hidden_proto uses __REDIRECT and so does the logic in
stdio.h for choosing which implementation of scanf to use; __REDIRECT
isn't transitive, so include/stdio.h needs to bridge the gap with a
macro. As far as I can tell, sscanf is the only function in this
family that's internally called by unrelated code.
Finally, there are several tests in stdio-common that use the
extension. bug21.c is a regression test for a crash; it still
exercises the relevant code when changed to use %ms instead of %as.
scanf14.c through scanf17.c are more complicated since they are
actually testing the subtleties of the extension - under what
circumstances is 'a' treated as a modifier letter, etc. I changed all
of them to use %ms instead of %as as well, but duplicated scanf14.c
and scanf16.c as scanf14a.c and scanf16a.c. These still use %as and
are compiled with -std=gnu89 to access the old extension. A bunch of
diagnostic overrides and manual workarounds for the old stdio.h
behavior become unnecessary. Yay!
* include/features.h (__GLIBC_USE_DEPRECATED_SCANF): New __GLIBC_USE
parameter. Only use deprecated scanf when __USE_GNU is defined
and __STDC_VERSION__ is less than 199901L or __cplusplus is less
than 201103L, whichever is relevant for the language being compiled.
* libio/stdio.h, libio/bits/stdio-ldbl.h: Decide whether to redirect
scanf, fscanf, sscanf, vscanf, vfscanf, and vsscanf to their
__isoc99_ variants based only on __GLIBC_USE (DEPRECATED_SCANF).
* wcsmbs/wchar.h: wcsmbs/bits/wchar-ldbl.h: Likewise for
wscanf, fwscanf, swscanf, vwscanf, vfwscanf, and vswscanf.
* libio/iovsscanf.c
* libio/fwscanf.c
* libio/iovswscanf.c
* libio/swscanf.c
* libio/vscanf.c
* libio/vwscanf.c
* libio/wscanf.c
* stdio-common/fscanf.c
* stdio-common/scanf.c
* stdio-common/vfscanf.c
* stdio-common/vfwscanf.c
* sysdeps/ieee754/ldbl-opt/nldbl-compat.c
* sysdeps/ieee754/ldbl-opt/nldbl-fscanf.c
* sysdeps/ieee754/ldbl-opt/nldbl-fwscanf.c
* sysdeps/ieee754/ldbl-opt/nldbl-iovfscanf.c
* sysdeps/ieee754/ldbl-opt/nldbl-scanf.c
* sysdeps/ieee754/ldbl-opt/nldbl-sscanf.c
* sysdeps/ieee754/ldbl-opt/nldbl-swscanf.c
* sysdeps/ieee754/ldbl-opt/nldbl-vfscanf.c
* sysdeps/ieee754/ldbl-opt/nldbl-vfwscanf.c
* sysdeps/ieee754/ldbl-opt/nldbl-vscanf.c
* sysdeps/ieee754/ldbl-opt/nldbl-vsscanf.c
* sysdeps/ieee754/ldbl-opt/nldbl-vswscanf.c
* sysdeps/ieee754/ldbl-opt/nldbl-vwscanf.c
* sysdeps/ieee754/ldbl-opt/nldbl-wscanf.c:
Override __GLIBC_USE_DEPRECATED_SCANF to 1.
* stdio-common/sscanf.c: Likewise. Remove ldbl_hidden_def for __sscanf.
* stdio-common/isoc99_sscanf.c: Add libc_hidden_def for __isoc99_sscanf.
* include/stdio.h: Provide libc_hidden_proto for __isoc99_sscanf,
not sscanf.
[!__GLIBC_USE (DEPRECATED_SCANF)]: Define sscanf as __isoc99_scanf
with a preprocessor macro.
* stdio-common/bug21.c, stdio-common/scanf14.c:
Use %ms instead of %as, %mS instead of %aS, %m[] instead of %a[];
remove DIAG_IGNORE_NEEDS_COMMENT for -Wformat.
* stdio-common/scanf16.c: Likewise. Add __attribute__ ((format (scanf)))
to xscanf, xfscanf, xsscanf.
* stdio-common/scanf14a.c: New copy of scanf14.c which still uses
%as, %aS, %a[]. Remove DIAG_IGNORE_NEEDS_COMMENT for -Wformat.
* stdio-common/scanf16a.c: New copy of scanf16.c which still uses
%as, %aS, %a[]. Add __attribute__ ((format (scanf))) to xscanf,
xfscanf, xsscanf.
* stdio-common/scanf15.c, stdio-common/scanf17.c: No need to
override feature selection macros or provide definitions of u_char etc.
* stdio-common/Makefile (tests): Add scanf14a and scanf16a.
(CFLAGS-scanf15.c, CFLAGS-scanf17.c): Remove.
(CFLAGS-scanf14a.c, CFLAGS-scanf16a.c): New. Compile these files
with -std=gnu89.
This patch consolidates the Linux termios.h by removing the arch-specific
one.
No semantic change is expected, checked on a build against x86_64-linux-gnu,
alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu.
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
bits/termios-misc.h.
* sysdeps/unix/sysv/linux/alpha/bits/termios.h: Remove file.
* sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/bits/termios-misc.h: New file.
* sysdeps/unix/sysv/linux/bits/termios.h: Include termios-misc.h.
It is used only on hurd.
No semantic change is expected, checked on a build against x86_64-linux-gnu,
alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu.
* sysdeps/unix/sysv/linux/bits/termios.h (_IOT_termios): Remove.
* sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise.
This patch consolidates the termios symbolic constants for use with tcflow
in its own header. The Linux generic implementation values match the
kernel UAPI and each architecture with deviate values have their own
implementation (currently only mips).
No semantic change is expected, checked on a build against x86_64-linux-gnu,
alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu.
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
termios-tcflow.h.
* sysdeps/unix/sysv/linux/bits/termios-tcflow.h: New file.
* sysdeps/unix/sysv/linux/mips/bits/termios-tcflow.h: Likewise.
* sysdeps/unix/sysv/linux/bits/termios.h (TCSANOW, TCSADRAIN,
TCSAFLUSH): Move to termios-tcflow.h.
* sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
This patch consolidates the termios symbolic constants used for local
mode with c_lflag member on its own header. The Linux generic implementation
values match the kernel UAPI and each architecture with deviate values
have their own implementation (in this case alpha, mips, and powerpc).
No semantic change is expected, checked on a build against x86_64-linux-gnu,
alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu.
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
termios-c_lflag.h.
* sysdeps/unix/sysv/linux/bits/termios-c_lflag.h: New file.
* sysdeps/unix/sysv/linux/alpha/bits/termios-c_lflag.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/termios-c_lflag.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios-c_lflag.h: Likewise.
* sysdeps/unix/sysv/linux/bits/termios.h (ISIG, ISCANON, ECHO, ECHOE,
ECHOK, ECHONL, NOFLSH, TOSTOP, IEXTEN): Move to termios-c_lflag.h.
[__USE_MISC || (__USE_XOPEN && !__USE_XOPEN2K)] (XCASE): Likewise.
[__USE_MISC] (ECHOCTL, ECHOPRT, ECHOKE, FLUSHO, PENDIN, EXTPROC):
Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
This patch consolidates the termios symbolic constants used for output
mode with c_cflag memver on its own header. The Linux generic
implementation values match the kernel UAPI and each architecture with
deviate values have their own implementation (in this case alpha and
powerpc).
No semantic change is expected, checked on a build against x86_64-linux-gnu,
alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu.
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
termios-c_cflag.h.
* sysdeps/unix/sysv/linux/bits/termios-c_cflag.h: New file.
* sysdeps/unix/sysv/linux/alpha/bits/termios-c_cflag.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios-c_cflag.h: Likewise.
* sysdeps/unix/sysv/linux/bits/termios.h (CSIZE, CS5, CS6, CS7, CS8,
CSTOPB, CREAD, PARENB, PARODD, HUPCL, CLOCAL): Move to
termios-c_cflag.h.
* sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
This patch consolidates the termios symbolic constants used for baud rates
selection used along with speed_t on its own header. The Linux generic
implementation values match the kernel UAPI and each architecture with
deviate values have their own implementation (in this case alpha and
powerpc).
No semantic change is expected, checked on a build against x86_64-linux-gnu,
alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu.
[BZ #23783]
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
termios-baud.h.
* sysdeps/unix/sysv/linux/bits/termios-baud.h: New file.
* sysdeps/unix/sysv/linux/alpha/bits/termios-baud.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios-baud.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/termios-baud.h: Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/termios.h (B57600, B115200,
B230400, B460800, B500000, B576000, B921600, B1000000, B1152000,
B1500000, B2000000, B2500000, B3000000, B3500000, B4000000,
__MAX_BAUD): Move to termios-baud.h.
[__USE_MISC] (CBAUD, CBAUDEX): Likewise.
* sysdeps/unix/sysv/linux/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
This patch consolidates the termios symbolic constants used for ouput
modes with c_oflag member on its own header. The Linux generic implementation
values match the kernel UAPI and each architecture with deviate values
have their own implementation (in this case alpha, powerpc, and sparc).
No semantic change is expected, checked on a build against x86_64-linux-gnu,
alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add
termios-c_oflag.h.
* sysdeps/unix/sysv/linux/bits/termios-c_oflag.h: New file.
* sysdeps/unix/sysv/linux/alpha/bits/termios-c_oflag.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios-c_oflag.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/termios-c_oflag.h: Likewise.
* sysdeps/unix/sysv/linux/bits/termios.h (OPOST, OLCUC, ONLCR, OCRNL,
ONOCR, ONLRET, OFILL, OFDEL, VTDLY, VT0, VT1): Move to
termios-c_oflag.h.
[__USE_MISC || __USE_XOPEN] (NLDLY, NL0, NL1, CRDLY, CR0, CR1, CR2,
CR3, TABDLY, TAB0, TAB1, TAB2, TAB3, BSDLY, BS0, BS1, FFDLY, FF0,
FFR1): Likewise.
[USE_MISC] (XTABS): Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/termios.h Likewise.
This patch consolidates the termios symbolic constants used for input
modes with c_iflag member on its own header. The Linux generic implementation
values match the kernel UAPI and each architecture with deviate values
have their own implementation (in this case alpha and powerpc).
No semantic change is expected, checked on a build against x86_64-linux-gnu,
alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu.
* sysdeps/unix/sysv/linux/Makefile (sysdeps_headers): Add
termios-c_iflag.h.
* sysdeps/unix/sysv/linux/bits/termios-c_iflag.h: New file.
* sysdeps/unix/sysv/linux/alpha/bits/termios-c_iflag.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios-c_iflag.h: Likewise.
* sysdeps/unix/sysv/linux/bits/termios.h (IGNBRK, BRKINT, IGNPAR, PARMRK,
INPCK, ISTRIP, INLCR, IGNCR, ICRNL, IXON, IXOFF, IXANY, IUCLC, IMAXBEL,
IUTF8): Move to termios-c_iflag.h.
* sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
This patch consolidates the termios symbolic constants used as subscript
for the array c_cc on its own header. The Linux generic implementation
values match the kernel UAPI and each architecture with deviate values
have their own implementation (in this case alpha, mips64, sparc64, and
powerpc).
No semantic change is expected, checked on a build against x86_64-linux-gnu,
alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu.
* sysdeps/unix/sysv/linux/Makefile (sysdeps_headers): Add
termios-cc.h.
* sysdeps/unix/sysv/linux/bits/termios-c_cc.h: Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/termios-c_cc.h: New file.
* sysdeps/unix/sysv/linux/mips/bits/termios-c_cc.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios-c_cc.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/termios-c_cc.h: Likewise.
* sysdeps/unix/sysv/linux/bits/termios.h (VINTR, VQUIT, VERASE,
VKILL, VEOF, VTIME, VMIN, VSWTC, VSTART, VSTOP, VSUSP, VEOL,
VREPRINT, VDISCARD, VWERASE, VLNEXT, VEOLF2): Move to termios-cc.h.
* sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
This patch consolidates the struct termios definition on its own header
and adds arch-defined ones for ABIs that deviate from generic
implementation. They are:
- alpha which has a slight different layout than generic one (c_cc
field is defined prior c_line).
- sparc and mips which do not have the c_ispeed/c_ospeed fields.
No semantic change is expected, checked on a build against x86_64-linux-gnu,
alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu.
* sysdeps/unix/sysv/linux/alpha/bits/termios-struct.h: New file.
* sysdeps/unix/sysv/linux/bits/termios-struct.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/termios-struct.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/termios-struct.h: Likewise.
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
termios-struct.h.
* sysdeps/unix/sysv/linux/bits/termios.h (struct termios): Move to
termios-struct.h.
* sysdeps/unix/sysv/linux/alpha/bits/termios.h (struct termios):
Likewise.
* sysdeps/unix/sysv/linux/mips/bits/termios.h (struct termios):
Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/termios.h (struct termios):
Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/termios.h (struct termios):
Likewise.
* sysdeps/unix/sysv/linux/kernel_termios.h (_HAVE_C_ISPEED,
_HAVE_C_OSPEED): Define.
* sysdeps/unix/sysv/linux/mips/kernel_termios.h (_HAVE_C_ISPEED,
_HAVE_C_OSPEED): Likewise.
* sysdeps/unix/sysv/linux/sparc/kernel_termios.h (_HAVE_C_ISPEED,
_HAVE_C_OSPEED): Likewise.
* sysdeps/unix/sysv/linux/speed.c [_HAVE_STRUCT_TERMIOS_C_OSPEED]
(cfsetospeed): Check for define value instead of existence.
[_HAVE_STRUCT_TERMIOS_C_ISPEED] (cfsetispeed): Likewise.
* sysdeps/unix/sysv/linux/tcgetattr.c [_HAVE_STRUCT_TERMIOS_C_ISPEED
&& _HAVE_C_ISPEED] (__tcgetattr): Likewise.
* sysdeps/unix/sysv/linux/tcsetattr.c [_HAVE_STRUCT_TERMIOS_C_ISPEED
&& _HAVE_C_ISPEED] (__tcsetattr): Likewise.
This patch defines TIOCSER_TEMT on all architectures using the __USE_MISC
guards similar to BZ#17782 fix. Latest Linux UAPI defines TIOCSER_TEMT
with the same value for all architectures, so it is safe to use the value
as default for all ABIs.
Checked on x86_64linux-gnu and build against sparc64-linux-gnu and
powerpc64le-linux-gnu.
[BZ #17783]
* sysdeps/unix/sysv/linux/bits/termios.h [__USE_MISC] (TIOCSER_TEMT):
Define.
* sysdeps/unix/sysv/linux/powerpc/bits/termios.h [__USE_MISC]
(TIOCSER_TEMT): Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/termios.h [__USE_MISC]
(TEOCSER_TEMT): Likewise.
This patch updates the Linux kernel version in tst-mman-consts.py to
4.20 (meaning that's the version for which glibc is expected to have
the same constants as the kernel, up to the exceptions listed in the
test). (Once we have more such tests sharing common infrastructure, I
expect the kernel version will be something set in the infrastructure
shared by all such tests, rather than something needing updating
separately for each test for each new kernel version.)
Tested with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/tst-mman-consts.py (main): Expect
constants to match with Linux 4.20.
The pre-ARMv7 CPUs are missing atomic compare and exchange and/or
barrier instructions. Therefore those are implemented using kernel
assistance, calling a kernel function at a specific address, and passing
the arguments in the r0 to r4 registers. This is done by specifying
registers for local variables. The a_ptr variable is placed in the r2
register and declared with __typeof (mem). According to the GCC
documentation on local register variables, if mem is a constant pointer,
the compiler may substitute the variable with its initializer in asm
statements, which may cause the corresponding operand to appear in a
different register.
This happens in __libc_start_main with the pointer to the thread counter
for static binaries (but not the shared ones):
# ifdef SHARED
unsigned int *ptr = __libc_pthread_functions.ptr_nthreads;
# ifdef PTR_DEMANGLE
PTR_DEMANGLE (ptr);
# endif
# else
extern unsigned int __nptl_nthreads __attribute ((weak));
unsigned int *const ptr = &__nptl_nthreads;
# endif
This causes static binaries using threads to crash when the GNU libc is
built with GCC 8 and most notably tst-cancel21-static.
To fix that, use the same trick than for the volatile qualifier,
defining a_ptr as a union.
Changelog:
[BZ #24034]
* sysdeps/unix/sysv/linux/arm/atomic-machine.h
(__arm_assisted_compare_and_exchange_val_32_acq): Use uint32_t rather
than __typeof (...) for the a_ptr variable.
According to ISO C99, passing the same buffer as source and destination
to sprintf, snprintf, vsprintf, or vsnprintf has undefined behavior.
Until the commit
commit 4e2f43f842
Author: Zack Weinberg <zackw@panix.com>
Date: Wed Mar 7 14:32:03 2018 -0500
Use PRINTF_FORTIFY instead of _IO_FLAGS2_FORTIFY (bug 11319)
a call to sprintf or vsprintf with overlapping buffers, for instance
vsprintf (buf, "%sTEXT", buf), would append `TEXT' into buf, while a
call to snprintf or vsnprintf would override the contents of buf.
After the aforementioned commit, the behavior of sprintf and vsprintf
changed (so that they also override the contents of buf).
This patch reverts this behavioral change, because it will likely break
applications that rely on the previous behavior, even though it is
undefined by ISO C. As noted by Szabolcs Nagy, this is used in SPEC2017
507.cactuBSSN_r/src/PUGH/PughUtils.c:
sprintf(mess," Size:");
for (i=0;i<dim+1;i++)
{
sprintf(mess,"%s %d",mess,pughGH->GFExtras[dim]->nsize[i]);
}
More important to notice is the fact that the overwriting of the
destination buffer is not the only behavior affected by the refactoring.
Before the refactoring, sprintf and vsprintf would use _IO_str_jumps,
whereas __sprintf_chk and __vsprintf_chk would use _IO_str_chk_jumps.
After the refactoring, all use _IO_str_chk_jumps, which would make
sprintf and vsprintf report buffer overflows and terminate the program.
This patch also reverts this behavior, by installing the appropriate
jump table for each *sprintf functions.
Apart from reverting the changes, this patch adds a test case that has
the old behavior hardcoded, so that regressions are noticed if something
else unintentionally changes the behavior.
Tested for powerpc64le.
This patch adds the IPV6_MULTICAST_ALL constant from Linux 4.20 to
bits/in.h.
Tested for x86_64.
* sysdeps/unix/sysv/linux/bits/in.h (IPV6_MULTICAST_ALL): New
macro.
This patch adds the PACKET_IGNORE_OUTGOING constant from Linux 4.20 to
netpacket/packet.h.
Tested for x86_64.
* sysdeps/unix/sysv/linux/netpacket/packet.h
(PACKET_IGNORE_OUTGOING): New macro.
This patch adds the HWCAP_SSBS constant from Linux 4.20 to the AArch64
bits/hwcap.h.
Tested with build-many-glibcs.py for aarch64-linux-gnu.
* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_SSBS): New
macro.
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.
This patch updates some miscellaneous files from their upstream
sources (thereby bringing in copyright date updates for some of those
files).
Tested for x86_64, including "make pdf".
* manual/texinfo.tex: Update to version 2018-12-28.17 with
trailing whitespace removed.
* scripts/config.guess: Update to version 2019-01-01.
* scripts/config.sub: Update to version 2019-01-01.
* scripts/move-if-change: Update from gnulib.
This patch updates files coming from tzcode to the versions in tzcode
2018i. No changes elsewhere in glibc were needed.
Tested for x86_64.
* timezone/zdump.c: Update from tzcode 2018i.
* timezone/zic.c: Likewise.
From the glibc point of view, this removes duplicate macro
definitions and is obviously safe.
From the Gnulib point of view, this pacifies xlc 12.01 on AIX 7.1.
* posix/regex_internal.h:
(__attribute__, __attribute_warn_unused_result__):
Remove; already defined elsewhere.
This commit removes the custom memcpy implementation from _int_realloc
for small chunk sizes. The ncopies variable has the wrong type, and
an integer wraparound could cause the existing code to copy too few
elements (leaving the new memory region mostly uninitialized).
Therefore, removing this code fixes bug 24027.
<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.
* hurd/lookup-retry: Include <unistd.h>.
(__hurd_file_name_lookup_retry): Keep a ref on last result in `lastdir'.
Release it on return. Handle "pid" magical lookup retry.
It has been discovered that some locales use the 12-hour time formats but
do not use any AM/PM indicator thus making the time ambiguous. This
commit adds "%p" wherever it was missing. In some cases it has been
identified that a locale should use 24-hour time format rather than
12-hour. All time formats come from CLDR but this commit introduces as
few changes as possible (for example, it tries not to change the time zone
display). For the locales which are not supported by CLDR the consistency
with similar locales (which means the same language or the same country)
has been preserved: if the time formats were the same before the change
then they are still the same after the change.
The time format updates can be roughly summarized as follows:
* Most of the locales of Djibouti, Eritrea, and Ethiopia now use
"%l:%M:%S %p".
* Most of the locales of India and some surrounding countries (Bangladesh,
Nepal etc.) now use "%I:%M:%S %p %Z".
* Most of the Arabic locales now use "%Z %I:%M:%S %p".
* Ge'ez language (Eritrea and Ethiopia) now uses "%l:%M:%S፡%p" (note the
consistent use of Ethiopic wordspace character).
* Tamil (India) now uses "%p %I:%M:%S %Z".
* Chinese (Hong Kong) t_fmt now uses "%p %I<U6642>%M<U5206>%S<U79D2> %Z".
* Additionally, the following locales have been switched from 12-hour time
formats to 24-hour, according to CLDR: Arabic (Morocco), Maltese, Somali
(Kenya), and Tamil (Sri Lanka).
* Finally, the Bulgarian, Czech, and Slovak locales used 24-hour time
format correctly but their t_fmt_ampm field was not empty containing
12-hour time format which was incorrect so it is now replaced with an
empty string.
[BZ #10496]
* localedata/locales/aa_DJ (t_fmt): Set to "%l:%M:%S %p".
(t_fmt_ampm): Likewise.
* localedata/locales/aa_ER (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/aa_ER@saaho (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/aa_ET (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/am_ET (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/byn_ER (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/om_ET (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/sid_ET (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/so_DJ (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/so_ET (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/so_SO (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/ti_ER (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/ti_ET (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/tig_ER (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/wal_ET (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/anp_IN (t_fmt): Set to "%I:%M:%S %p %Z".
* localedata/locales/ar_IN (t_fmt): Likewise.
* localedata/locales/bhb_IN (t_fmt): Likewise.
* localedata/locales/bho_IN (t_fmt): Likewise.
* localedata/locales/bi_VU (t_fmt): Likewise.
* localedata/locales/bn_BD (t_fmt): Likewise.
* localedata/locales/bn_IN (t_fmt): Likewise.
* localedata/locales/brx_IN (t_fmt): Likewise.
* localedata/locales/doi_IN (t_fmt): Likewise.
* localedata/locales/en_HK (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/en_IN (t_fmt): Likewise.
* localedata/locales/en_PH (t_fmt): Likewise.
* localedata/locales/gu_IN (t_fmt): Likewise.
* localedata/locales/hi_IN (t_fmt): Likewise.
* localedata/locales/hif_FJ (t_fmt): Likewise.
* localedata/locales/hne_IN (t_fmt): Likewise.
* localedata/locales/kn_IN (t_fmt): Likewise.
* localedata/locales/kok_IN (t_fmt): Likewise.
* localedata/locales/ks_IN (t_fmt): Likewise.
* localedata/locales/ks_IN@devanagari (t_fmt): Likewise.
* localedata/locales/mag_IN (t_fmt): Likewise.
* localedata/locales/mai_IN (t_fmt): Likewise.
* localedata/locales/mjw_IN (t_fmt): Likewise.
* localedata/locales/ml_IN (t_fmt): Likewise.
* localedata/locales/mni_IN (t_fmt): Likewise.
* localedata/locales/mr_IN (t_fmt): Likewise.
* localedata/locales/ms_MY (t_fmt): Likewise.
* localedata/locales/pa_IN (t_fmt): Likewise.
* localedata/locales/raj_IN (t_fmt): Likewise.
* localedata/locales/sa_IN (t_fmt): Likewise.
* localedata/locales/sat_IN (t_fmt): Likewise.
* localedata/locales/sd_IN (t_fmt): Likewise.
* localedata/locales/sd_IN@devanagari (t_fmt): Likewise.
* localedata/locales/tcy_IN (t_fmt): Likewise.
* localedata/locales/the_NP (t_fmt): Likewise.
* localedata/locales/to_TO (t_fmt): Likewise.
* localedata/locales/ur_IN (t_fmt): Likewise.
* localedata/locales/hif_FJ (d_t_fmt): Set to
"%A %d %b %Y %I:%M:%S %p".
(date_fmt): Add, set to "%A %d %b %Y %I:%M:%S %p %Z".
* localedata/locales/ar_AE (t_fmt): Set to "%Z %I:%M:%S %p".
* localedata/locales/ar_BH (t_fmt): Likewise.
* localedata/locales/ar_DZ (t_fmt): Likewise.
* localedata/locales/ar_EG (t_fmt): Likewise.
* localedata/locales/ar_IQ (t_fmt): Likewise.
* localedata/locales/ar_JO (t_fmt): Likewise.
* localedata/locales/ar_KW (t_fmt): Likewise.
* localedata/locales/ar_LB (t_fmt): Likewise.
* localedata/locales/ar_LY (t_fmt): Likewise.
* localedata/locales/ar_OM (t_fmt): Likewise.
* localedata/locales/ar_QA (t_fmt): Likewise.
* localedata/locales/ar_SD (t_fmt): Likewise.
* localedata/locales/ar_SS (t_fmt): Likewise.
* localedata/locales/ar_SY (t_fmt): Likewise.
* localedata/locales/ar_TN (t_fmt): Likewise.
* localedata/locales/ar_YE (t_fmt): Likewise.
* localedata/locales/gez_ER (t_fmt): Set to "%l:%M:%S<U1361>%p".
(t_fmt_ampm): Likewise.
* localedata/locales/gez_ET (t_fmt): Likewise.
(t_fmt_ampm): Likewise.
* localedata/locales/ta_IN (t_fmt): Set to "%p %I:%M:%S %Z".
(t_fmt_ampm): Likewise.
(d_t_fmt): Set to "%A %d %B %Y %p %I:%M:%S %Z".
* localedata/locales/zh_HK (t_fmt):
Set to "%p %I<U6642>%M<U5206>%S<U79D2> %Z".
* localedata/locales/ar_MA (t_fmt_ampm): Set to "" (empty string)
because this locale does not use the 12-hour clock.
(t_fmt): Set to "%Z %H:%M:%S".
(d_t_fmt): Set to "%d %b, %Y %Z %H:%M:%S".
* localedata/locales/mt_MT (t_fmt_ampm): Set to "" (empty string)
because this locale does not use the 12-hour clock.
(t_fmt): Set to "%H:%M:%S %Z".
(d_t_fmt): Set to "%A, %d ta %b, %Y %H:%M:%S %Z".
* localedata/locales/so_KE (t_fmt_ampm): Set to "" (empty string)
because this locale does not use the 12-hour clock.
(t_fmt): Set to "%T".
(d_t_fmt): Set to "%A, %B %e, %Y %X %Z".
(date_fmt): Set to "%A, %B %e, %X %Z %Y".
* localedata/locales/ta_LK (t_fmt_ampm): Set to "" (empty string)
because this locale does not use the 12-hour clock.
(t_fmt): Set to "%H:%M:%S %Z".
(d_t_fmt): Set to "%A %d %B %Y %H:%M:%S %Z".
* localedata/locales/bg_BG (t_fmt_ampm): Set to "" (empty string)
because this locale does not use the 12-hour clock.
* localedata/locales/cs_CZ (t_fmt_ampm): Likewise.
* localedata/locales/sk_SK (t_fmt_ampm): Likewise.
Albanian locale uses the 12-hour clock but some time formats did not
use any AM/PM indicator making the time ambiguous. This commit adds
"%p" wherever it was missing.
It also sets the correct date format because the old "%Y-%b-%d" produced
rather weird results like "2018-Sht-28".
All time formats come from CLDR but as few changes have been introduced
by this commit as possible. Some articles from MSDN and other available
online sources have been also taken into account.
[BZ #10496]
[BZ #23724]
* localedata/locales/sq_AL (t_fmt): Set to "%I:%M:%S.%p %Z".
(t_fmt_ampm): Likewise.
(d_t_fmt): Set to "%a %-d %b %Y %I:%M:%S.%p".
(date_fmt): Add, set to "%a %-d %b %Y %I:%M:%S.%p %Z".
(d_fmt): Set to "%-d.%-m.%y".
This simplifies the code, by removing stuff intended for porting
to Gnulib but no longer needed there.
* posix/regcomp.c [!_LIBC]: No need to put #ifdef _LIBC around
uses of libc_hidden_def, weak_alias.
* posix/regcomp.c, posix/regexec.c: Use __restrict rather than
_Restrict_ except for public-facing headers.
* posix/regex_internal.h (attribute_hidden) [!_LIBC]:
Remove; already defined elsewhere.
* posix/regex.c, posix/regex_internal.h:
Use __GNUC_PREREQ instead of rolling our own.
* posix/regex_internal.h (__GNUC_PREREQ): Remove duplicate defn.
The current bench-strlen compares against a slow byte-oriented strlen which
is not useful given it's too easy to beat. Remove it and compare against the
generic C strlen version and memchr.
* benchtests/bench-strlen.c (generic_strlen): New function.
(memchr_strlen): New function.
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.
This patch updates longlong.h from GCC. There were no local changes
in glibc (the previous version was identical to the r232143 GCC
version, apart from copyright dates which had been updated in both
places), so this patch makes it identical to the version in GCC again.
Tested for x86_64 and x86. Also tested with build-many-glibcs.py for
its RISC-V configurations, as the glibc architecture with the most
substantial changes in longlong.h in this patch.
* stdlib/longlong.h: Update from GCC.
We know that building glibc with GCC 4.9 is broken on various
platforms (bug 23993). As it's more than a year since we last
increased the minimum GCC version to build glibc, this patch changes
the requirement to be GCC 5 or later (indeed, based on 4.9 having been
required for building 2.26, it would be consistent in terms of timing
to require GCC 6 or later from the 2.30 release onwards). It
deliberately just updates the configure test and corresponding
documentation, leaving removal of no-longer-needed __GNUC_PREREQ tests
for a separate patch.
In the NEWS entry, the requirement for a newer GCC version for
powerpc64le is reiterated (as in the entry for the 4.9 requirement in
2.26) to avoid suggesting the version requirement there has gone down.
(If that version goes up further as part of support for binary128 long
double, of course the wording would change at that time.)
Tested for x86_64.
[BZ #23993]
* configure.ac (libc_cv_compiler_ok): Require GCC 5 or later.
* configure: Regenerated.
* manual/install.texi (Tools for Compilation): Update minimum GCC
version.
* INSTALL: Regenerated.
Provide a 64-bit-time version of __difftime (but do not assume
__time64_t is a signed int so that Gnulib can reuse the code)
and make the 32-bit version a wrapper of it.
Current difftime expects two time_t arguments and returns a
double. To preserve source-code compatibility, its 64-bit-time
equivalent expects two __time64_t arguments but still returns
a double.
This patch was tested by running 'make check' on branch
master then applying this patch and its two predecessors and
running 'make check' again, and checking that both 'make check'
yield identical results. This was done on x86_64-linux-gnu and
i686-linux-gnu.
This patch was also functionally tested with an ad hoc userland
C program which checks the result of difftime for various pairs
of 32-bit and, for 64-bit builds, of 64-bit time_t values too.
The program was built and run against a glibc with and without
the patch, and the results compared to ensure the patch does
not change the behavior of difftime.
* include/time.h (__difftime64): Add.
* time/difftime.c (subtract): convert to 64-bit time.
* time/difftime.c (__difftime64): Add.
* time/difftime.c (__difftime): Wrap around __difftime64.
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>
Tested with 'make check' on x86_64-linux-gnu and i686-linux.gnu.
* include/time.h
(__ctime64_r): Add.
* time/ctime_r.c
(__ctime64_r): Add.
[__TIMESIZE != 64] (__ctime_r): Turn into a wrapper.
Tested with 'make check' on x86_64-linux-gnu and i686-linux.gnu.
* include/time.h
(__ctime64): Add.
* time/gmtime.c
(__ctime64): Add.
[__TIMESIZE != 64] (ctime): Turn into a wrapper.
Tested with 'make check' on x86_64-linux-gnu and i686-linux.gnu.
* include/time.h
(__gmtime64_r): Add.
* time/gmtime.c
(__gmtime64_r): Add.
[__TIMESIZE != 64] (__gmtime): Turn into a wrapper.
Tested with 'make check' on x86_64-linux-gnu and i686-linux.gnu.
* include/time.h
(__gmtime64): Add.
* time/gmtime.c
(__gmtime64): Add.
[__TIMESIZE != 64] (__gmtime): Turn into a wrapper.
Tested with 'make check' on x86_64-linux-gnu and i686-linux.gnu.
* include/time.h
(__localtime64_r): Add.
* time/localtime.c
(__localtime64_r): Add.
[__TIMESIZE != 64] (__localtime_r): Turn into a wrapper.
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.
Florian Weimer
Adhemerval Zanella
Adhemerval Zanella
Szabolcs Nagy
Zack Weinberg
PanderMusubi
Joseph Myers
Samuel Thibault
Aurelien Jarno
Gabriel F. T. Gomes
Paul Eggert
Florian Weimer
H.J. Lu
Justus Winter
Rafal Luzynski
Wilco Dijkstra
Istvan Kurucsai
Mao Han
Albert ARIBAUD (3ADEV)
Tulio Magno Quites Machado Filho
Andreas Schwab
Stefan Liebler