mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-13 14:50:17 +00:00
2ac579f9c2
406 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Adhemerval Zanella
|
06436acf81 |
ipc: Refactor sysvipc internal definitions
This patch refactor the internal sysvipc in two main points:
1. Add a new __ASSUME_SYSVIPC_DEFAULT_IPC_64 to infer the __IPC_64
value to be used along either the multiplexed __NR_ipc or wired-up
syscall. The defaut value assumed for __IPC_64 is also changed
from 0x100 to 0x0, aligning with Linux generic UAPI. The idea
is to simplify the Linux 5.1 wire-up for sysvipc syscalls for
some 32-bit ABIs (which expectes __IPC_64 being 0x0) and simplify
new ports (which will no longer need to add ipc_priv.h).
2. It also removes some duplicated internal definition used on compat
sysvipc symbols defined at ipc_priv.h (more specifically the
__old_ipc_perm, SEMCTL_ARG_ADDRESS, MSGRCV_ARGS, and
SEMTIMEDOP_IPC_ARGS). The idea is also to make it simpler to enable
the new wire-up sysvipc syscall provided by Linux v5.1.
There is no semantic change expected on any port. Checked with a build
against all affected ABIs.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
|
||
Joseph Myers
|
d1e411e5c7 |
Add PTRACE_GET_SYSCALL_INFO from Linux 5.3 to sys/ptrace.h.
Linux 5.3 adds a PTRACE_GET_SYSCALL_INFO constant, with an associated structure and PTRACE_SYSCALL_INFO_* constants. This patch adds these to sys/ptrace.h in glibc (PTRACE_GET_SYSCALL_INFO in each architecture version, the rest in bits/ptrace-shared.h). As with previous such constants and associated structures, the glibc version of the structure is named struct __ptrace_syscall_info. Tested for x86_64, and with build-many-glibcs.py. |
||
|
Adhemerval Zanella
|
2f959dfe84 |
sysvipc: Set ipc_perm mode as mode_t (BZ#18231)
This patch sets the mode field in ipc_perm as mode_t for all architectures,
as POSIX specification [1]. The changes required are as follow:
1. It moves the ipc_perm definition out of ipc.h to its own header
ipc_perm.h. It also allows consolidate the IPC_* definition on
only one header.
2. The generic implementation follow the kernel ipc64_perm size so the
syscall can be made directly without temporary buffer copy. However,
since glibc defines the MODE field as mode_t, it omits the __PAD1 field
(since glibc does not export mode_t as 16-bit for any architecture).
It is a two-fold improvement:
2.1. New implementation which follow Linux UAPI will not need to
provide an arch-specific ipc-perm.h header neither wrongly
use the wrong 16-bit definition from previous default ipc.h
(as csky did).
2.1. It allows consolidate ipc_perm definition for architectures that
already provide mode_t as 32-bit.
3. All kernel ABIs for the supported architectures already provides the
expected padding for mode type extension to 32-bit. However, some
architectures the padding has the wrong placement, so it requires
the ipc control routines (msgctl, semctl, and shmctl) to adjust the
mode field accordingly. Currently they are armeb, microblaze, m68k,
s390, and sheb.
A new assume is added, __ASSUME_SYSVIPC_BROKEN_MODE_T, which the
required ABIs define.
4. For the ABIs that define __ASSUME_SYSVIPC_BROKEN_MODE_T, it also
require compat symbols that do not adjust the mode field.
Checked on arm-linux-gnueabihf, aarch64-linux-gnu, powerpc64le-linux-gnu,
and x86_64-linux-gnu. I also checked the sysvipc tests on hppa-linux-gnu,
sh4-linux-gnu, s390x-linux-gnu, and s390-linux-gnu.
I also did a sanity test against armeb qemu usermode for the sysvipc
tests.
[BZ #18231]
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
bits/ipc-perm.h.
* sysdeps/unix/sysv/linux/aarch64/bits/ipc.h: Remove file.
* sysdeps/unix/sysv/linux/alpha/bits/ipc.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/ipc.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/ipc.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/ipc.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/ipc.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/ipc.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/ipc.h: Likewise.
* sysdeps/unix/sysv/linux/arm/kernel-features.h
[__BYTE_ORDER == __BIG_ENDIAN] (__ASSUME_SYSVIPC_BROKEN_MODE_T):
Define.
* sysdeps/sysv/linux/microblaze/kernel-features.h: Likewise.
* sysdeps/unix/sysv/linux/s390/kernel-features.h
[!__s390x__] (__ASSUME_SYSVIPC_BROKEN_MODE_T): Define.
* sysdeps/unix/sysv/linux/sh/kernel-features.h
(__ASSUME_SYSVIPC_BROKEN_MODE_T): Define.
* sysdeps/unix/sysv/linux/m68k/kernel-features.h: Likewise.
* sysdeps/unix/sysv/linux/bits/ipc-perm.h: New file.
* sysdeps/unix/sysv/linux/powerpc/bits/ipc-perm.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/ipc-perm.h: Likewise.
* sysdeps/unix/sysv/linux/bits/ipc.h (ipc_perm): Move to
bits/ipc-perm.h.
* sysdeps/unix/sysv/linux/hppa/bits/ipc-perm.h: New file.
* sysdeps/unix/sysv/linux/kernel-features.h: Add comment about
__ASSUME_SYSVIPC_BROKEN_MODE_T semantic.
* sysdeps/unix/sysv/linux/msgctl.c (DEFAULT_VERSION): Define as
2.31 if __ASSUME_SYSVIPC_BROKEN_MODE_T is defined.
(msgctl_syscall, __msgctl_mode16): New symbol.
(__new_msgctl): Add bits for __ASSUME_SYSVIPC_BROKEN_MODE_T.
* sysdeps/unix/sysv/linux/semctl.c: Likewise.
* sysdeps/unix/sysv/linux/shmctl.c: Likewise.
* sysdeps/unix/sysv/linux/arm/be/libc.abilist (GLIBC_2.31): Add
msgctl, semctl, and shmctl.
* sysdeps/sysv/linux/microblaze/be/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/sh/be/libc.abilist: Likewise.
* conform/data/sys/ipc.h-data: Only xfail {struct ipc_perm} mode_t
mode for Hurd.
* sysdeps/unix/sysv/linux/m68k/Versions (libc) [GLIBC_2.31]: Add
msgctl, semctl, and shmctl.
* sysdeps/unix/sysv/linux/arm/be/Versions: New file.
* sysdeps/unix/sysv/linux/microblaze/be/Versions: Likewise.
* sysdeps/unix/sysv/linux/sh/be/Versions: Likewise.
[1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_ipc.h.html
|
||
Florian Weimer
|
ca602c1536 |
nptl: Move pthread_attr_setschedparam implementation into libc
This is part of the libpthread removal project: <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> |
||
|
Florian Weimer
|
0caab6638e |
nptl: Move pthread_attr_getschedparam implementation into libc
This is part of the libpthread removal project: <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> |
||
|
Florian Weimer
|
eaad14b56a |
nptl: Move pthread_attr_setinheritsched implementation into libc.
This is part of the libpthread removal project: <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html> |
||
Andreas Schwab
|
eb502f72cd | Fix vDSO initialization on arm and mips | ||
|
Adhemerval Zanella
|
b8a7c7da4e |
Refactor vDSO initialization code
Linux vDSO initialization code the internal function pointers require a
lot of duplicated boilerplate over different architectures. This patch
aims to simplify not only the code but the required definition to enable
a vDSO symbol.
The changes are:
1. Consolidate all init-first.c on only one implementation and enable
the symbol based on HAVE_*_VSYSCALL existence.
2. Set the HAVE_*_VSYSCALL to the architecture expected names string.
3. Add a new internal implementation, get_vdso_mangle_symbol, which
returns a mangled function pointer.
Currently the clock_gettime, clock_getres, gettimeofday, getcpu, and time
are handled in an arch-independent way, powerpc still uses some
arch-specific vDSO symbol handled in a specific init-first implementation.
Checked on aarch64-linux-gnu, arm-linux-gnueabihf, i386-linux-gnu,
mips64-linux-gnu, powerpc64le-linux-gnu, s390x-linux-gnu,
sparc64-linux-gnu, and x86_64-linux-gnu.
* sysdeps/powerpc/powerpc32/backtrace.c (is_sigtramp_address,
is_sigtramp_address_rt): Use HAVE_SIGTRAMP_{RT}32 instead of SHARED.
* sysdeps/powerpc/powerpc64/backtrace.c (is_sigtramp_address):
Likewise.
* sysdeps/unix/sysv/linux/aarch64/init-first.c: Remove file.
* sysdeps/unix/sysv/linux/aarch64/libc-vdso.h: Likewise.
* sysdeps/unix/sysv/linux/arm/init-first.c: Likewise.
* sysdeps/unix/sysv/linux/arm/libc-vdso.h: Likewise.
* sysdeps/unix/sysv/linux/mips/init-first.c: Likewise.
* sysdeps/unix/sysv/linux/mips/libc-vdso.h: Likewise.
* sysdeps/unix/sysv/linux/i386/init-first.c: Likewise.
* sysdeps/unix/sysv/linux/riscv/init-first.c: Likewise.
* sysdeps/unix/sysv/linux/riscv/libc-vdso.h: Likewise.
* sysdeps/unix/sysv/linux/s390/init-first.c: Likewise.
* sysdeps/unix/sysv/linux/s390/libc-vdso.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/init-first.c: Likewise.
* sysdeps/unix/sysv/linux/sparc/libc-vdso.h: Likewise.
* sysdeps/unix/sysv/linux/x86/libc-vdso.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/init-first.c: Likewise.
* sysdeps/unix/sysv/linux/aarch64/sysdep.h
(HAVE_CLOCK_GETRES_VSYSCALL, HAVE_CLOCK_GETTIME_VSYSCALL,
HAVE_GETTIMEOFDAY_VSYSCALL): Define value based on kernel exported
name.
* sysdeps/unix/sysv/linux/arm/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL,
HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
* sysdeps/unix/sysv/linux/i386/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL,
HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
* sysdeps/unix/sysv/linux/mips/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL,
HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
* sysdeps/unix/sysv/linux/powerpc/sysdep.h
(HAVE_CLOCK_GETRES_VSYSCALL, HAVE_CLOCK_GETTIME_VSYSCALL,
HAVE_GETCPU_VSYSCALL, HAVE_TIME_VSYSCALL, HAVE_GET_TBFREQ,
HAVE_SIGTRAMP_RT64, HAVE_SIGTRAMP_32, HAVE_SIGTRAMP_RT32i,
HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
* sysdeps/unix/sysv/linux/riscv/sysdep.h (HAVE_CLOCK_GETRES_VSYSCALL,
HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL,
HAVE_GETCPU_VSYSCALL): Likewise.
* sysdeps/unix/sysv/linux/s390/sysdep.h (HAVE_CLOCK_GETRES_VSYSCALL,
HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL,
HAVE_GETCPU_VSYSCALL): Likewise.
* sysdeps/unix/sysv/linux/sparc/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL,
HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h
(HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL,
HAVE_GETCPU_VSYSCALL): Likewise.
* sysdeps/unix/sysv/linux/dl-vdso.h (VDSO_NAME, VDSO_HASH): Define to
invalid names if architecture does not define them.
(get_vdso_mangle_symbol): New symbol.
* sysdeps/unix/sysv/linux/init-first.c: New file.
* sysdeps/unix/sysv/linux/libc-vdso.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/init-first.c (gettimeofday,
clock_gettime, clock_getres, getcpu, time): Remove declaration.
(__libc_vdso_platform_setup_arch): Likewise and use
get_vdso_mangle_symbol to setup vDSO symbols.
(sigtramp_rt64, sigtramp32, sigtramp_rt32, get_tbfreq): Add
attribute_hidden.
* sysdeps/unix/sysv/linux/powerpc/libc-vdso.h: Likewise.
* sysdeps/unix/sysv/linux/sysdep-vdso.h (VDSO_SYMBOL): Remove
definition.
|
||
|
Adhemerval Zanella
|
b8386c2859 |
Remove PREPARE_VERSION and PREPARE_VERSION_KNOW
This patch removes the PREPARE_VERSION and PREPARE_VERSION_KNOW macro and uses a static inline function instead, get_vdso_symbol. Each architecture that supports vDSO must define the Linux version and its hash for symbol resolution (VDSO_NAME and VDSO_HASH macro respectively). It also organizes the HAVE_*_VSYSCALL for mips, powerpc, and s390 to define them on a common header. The idea is to require less code to configure and enable vDSO support for newer ports. No semantic changes are expected. Checked with a build against all affected architectures. * sysdeps/unix/make-syscalls.sh: Make vDSO call use get_vdso_symbol. * sysdeps/unix/sysv/linux/aarch64/gettimeofday.c (__gettimeofday): Use get_vdso_symbol instead of _dl_vdso_vsym. * sysdeps/unix/sysv/linux/powerpc/time.c (time): Likewise. * sysdeps/unix/sysv/linux/riscv/flush-icache.c (__lookup_riscv_flush_icache): Likewise. * sysdeps/unix/sysv/linux/x86/gettimeofday.c (__gettimeofday): Likewise. * sysdeps/unix/sysv/linux/x86/time.c (time): Likewise. * sysdeps/unix/sysv/linux/powerpc/gettimeofday.c: Likewise. * sysdeps/unix/sysv/linux/aarch64/init-first.c: Likewise. * sysdeps/unix/sysv/linux/arm/init-first.c: Likewise. * sysdeps/unix/sysv/linux/i386/init-first.c: Likewise. * sysdeps/unix/sysv/linux/mips/init-first.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/init-first.c: Likewise. * sysdeps/unix/sysv/linux/riscv/init-first.c: Likewise. * sysdeps/unix/sysv/linux/sparc/init-first.c: Likewise. * sysdeps/unix/sysv/linux/s390/init-first.c: Likewise. * sysdeps/unix/sysv/linux/x86_64/init-first.c: Likewise. * sysdeps/unix/sysv/linux/aarch64/sysdep.h (VDSO_NAME, VDSO_HASH): Define. * sysdeps/unix/sysv/linux/arm/sysdep.h (VDSO_NAME, VDSO_HASH): Likewise. * sysdeps/unix/sysv/linux/i386/sysdep.h (VDSO_NAME, VDSO_HASH): Likewise. * sysdeps/unix/sysv/linux/riscv/sysdep.h (VDSO_NAME, VDSO_HASH): Likewise. * sysdeps/unix/sysv/linux/sparc/sysdep.h (VDSO_NAME, VDSO_HASH): Likewise. * sysdeps/unix/sysv/linux/x86_64/sysdep.h (VDSO_NAME, VDSO_HASH): Likewise. * sysdeps/unix/sysv/linux/mips/mips32/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Remove definition. * sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h (HAVE_CLOCK_GETRES_VSYSCALL, HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL, HAVE_GETCPU_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h (HAVE_CLOCK_GETRES_VSYSCALL, HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL, HAVE_GETCPU_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/mips/sysdep.h: New file. * sysdeps/unix/sysv/linux/powerpc/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/s390/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/dl-vdso.h (PREPARE_VERSION, PREPARE_VERSION_KNOWN, VDSO_NAME_LINUX_2_6, VDSO_HASH_LINUX_2_6, VDSO_NAME_LINUX_2_6_15, VDSO_HASH_LINUX_2_6_15, VDSO_NAME_LINUX_2_6_29, VDSO_HASH_LINUX_2_6_29, VDSO_NAME_LINUX_4_15, VDSO_HASH_LINUX_4_15): Remove defines. (get_vdso_symbol): New function. |
||
Paul Eggert
|
5a82c74822 |
Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
|
||
Zack Weinberg
|
7b5af2d8f2 |
Finish move of clock_* functions to libc. [BZ #24959]
In glibc 2.17, the functions clock_getcpuclockid, clock_getres, clock_gettime, clock_nanosleep, and clock_settime were moved from librt.so to libc.so, leaving compatibility stubs behind. Now that the dynamic linker no longer insists on finding versioned symbols in the same library that originally defined them, we do not need the stubs anymore, and this means we don't need GLIBC_PRIVATE __-prefix aliases for most of the functions anymore either. (clock_gettime still needs one.) For ports added before 2.17, libc.so needs to provide two symbol versions for each, the default at GLIBC_2.17 plus a compat version matching what librt had. While I'm at it, move the clock_*.c files and their tests from rt/ to time/. |
||
|
Florian Weimer
|
9743c6272d |
nptl: Move pthread_attr_getinheritsched implementation into libc
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> |
||
|
Adhemerval Zanella
|
1673ba87fe |
arm: Split BE/LE abilist
The fix for BZ#18231 requires new symbols only for armeb. This patch adds the required folder and files for both BE and LE abilist. No semantic changes are expected. Checked with check-abi for arm-linux-gnueabihf and armeb-linux-gnueabihf. * sysdeps/arm/preconfigure.ac: Set machine based on endianness. * sysdeps/arm/preconfigure: Regenerate. * sysdeps/arm/be/Implies: New file. * sysdeps/arm/be/armv6/Implies: Likewise. * sysdeps/arm/be/armv6t2/Implies: Likewise. * sysdeps/arm/be/armv7/Implies: Likewise. * sysdeps/arm/le/Implies: Likewise. * sysdeps/unix/sysv/linux/arm/be/Implies: Likewise. * sysdeps/unix/sysv/linux/arm/le/Implies: Likewise. * sysdeps/unix/sysv/linux/arm/*.abilist: Move to sysdeps/unix/sysv/linux/arm/le/*.abilist. * sysdeps/unix/sysv/linux/arm/be/l*.abilist: New files. |
||
|
Florian Weimer
|
ffced383cd |
nptl: Move pthread_attr_setdetachstate implementation into libc
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> |
||
|
Adhemerval Zanella
|
08d57105bb |
linux: Make profil_counter a compat_symbol (BZ#17726)
As indicated by Joseph's comment on BZ#17726, this symbol is most likely a historical ABI accident. This patch make it on both arm and sparc ABIs a compat_symbol. Checked against a build arm-linux-gnueabihf, sparcv9-linux-gnu, adn sparc64-linux-gnu to see if the symbol is still present. * gmon/Versions (libc) [GLIBC_2.31]: New entry. * sysdeps/unix/sysv/linux/arm/profil-counter.h (profil_counter): Make a compat_symbol. * sysdeps/unix/sysv/linux/sparc/profil-counter.h (__profil_counter_global): Likewise. |
||
|
Adhemerval Zanella
|
a43565ac44 |
Refactor sigcontextinfo.h
This patch refactor sigcontextinfo.h header to use SA_SIGINFO as default
for both gmon and debug implementations. This allows simplify
profil-counter.h on Linux to use a single implementation and remove the
requirements for newer ports to redefine __sigaction/sigaction to use
SA_SIGINFO.
The GET_PC macro is also replaced with a function sigcontext_get_pc that
returns an uintptr_t instead of a void pointer. It allows easier convertion
to integer on ILP32 architecture, such as x32, without the need to suppress
compiler warnings.
The patch also requires some refactor of register-dump.h file for some
architectures (to reflect it is now called from a sa_sigaction instead of
sa_handler signal context).
- Alpha, i386, and s390 are straighfoward to take in consideration the
new argument type.
- ia64 takes in consideration the kernel pass a struct sigcontextt
as third argument for sa_sigaction.
- sparc take in consideration the kernel pass a pt_regs struct
as third argument for sa_sigaction.
- m68k dummy function is removed and the FP state is dumped on
register_dump itself.
- For SH the register-dump.h file is consolidate on a common implementation
and the floating-point state is checked based on ownedfp field.
The register_dump does not change its output format in any affected
architecture.
I checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu,
arm-linux-gnueabihf, sparcv9-linux-gnu, sparc64-linux-gnu, powerpc-linux-gnu,
powerpc64-linux-gnu, and powerpc64le-linux-gnu.
I also checked the libSegFault.so through catchsegv on alpha-linux-gnu,
m68k-linux-gnu and sh4-linux-gnu to confirm the output has not changed.
Adhemerval Zanella <adhemerval.zanella@linaro.org>
Florian Weimer <fweimer@redhat.com>
* debug/segfault.c (install_handler): Use SA_SIGINFO if defined.
* sysdeps/generic/profil-counter.h (__profil_counter): Cast to
uintptr_t.
* sysdeps/generic/sigcontextinfo.h (GET_PC): Rename to
sigcontext_get_pc and return aligned cast to uintptr_t.
* sysdeps/mach/hurd/i386/sigcontextinfo.h (GET_PC): Likewise.
* sysdeps/posix/profil.c (profil_count): Change PC argument to
uintptr_t.
(__profil): Use SA_SIGINFO.
* sysdeps/posix/sprofil.c (profil_count): Change PCP argument to
uintptr_t.
(__sprofil): Use SA_SIGINFO.
* sysdeps/unix/sysv/linux/profil-counter.h: New file.
* sysdeps/unix/sysv/linux/aarch64/profil-counter.h: Remove file.
* sysdeps/unix/sysv/linux/csky/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/i386/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/microblaze/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/mips/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/nios2/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/profil-counter.h: Likewise.
* sysdeps/sysv/linux/s390/s390-32/profil-counter.h: Likewise.
* sysdeps/sysv/linux/s390/s390-64/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/sh/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/arm/profil-counter.h (__profil_counter):
Assume SA_SIGINFO and use sigcontext_get_pc instead of GET_PC.
* sysdeps/unix/sysv/linux/sparc/profil-counter.h: New file.
* sysdeps/unix/sysv/linux/sparc/sparc64/profil-counter.h: Remove file.
* sysdeps/unix/sysv/linux/sparc/sparc32/profil-counter.h: Likewise.
* sysdpes/unix/sysv/linux/aarch64/sigcontextinfo.h (SIGCONTEXT,
GET_PC, __sigaction, sigaction): Remove defines.
(sigcontext_get_pc): New function.
* sysdeps/unix/sysv/linux/alpha/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/arm/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/csky/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/i386/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/m68k/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/mips/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/nios2/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/s390/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/microblaze/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/sh/sigcontextinfo.h: Likewise.
* sysdeps/sysv/linux/sparc/sparc32/sigcontextinfo.h: Likewise.
* sysdeps/sysv/linux/sparc/sparc64/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/alpha/register-dump.h (register_dump):
Handle CTX argument as ucontext_t.
* sysdeps/unix/sysv/linux/i386/register-dump.h: Likewise.
Likewise.
* sysdeps/unix/sysv/linux/m68k/register-dump.h: Likewise.
* sysdeps/sysv/linux/s390/s390-32/register-dump.h: Likewise.
* sysdeps/sysv/linux/s390/s390-64/register-dump.h: Likewise.
* sysdeps/unix/sysv/linux/sh/register-dump.h: New file.
* sysdeps/unix/sysv/linux/sh/sh4/register-dump.h: Remove File.
* sysdeps/unix/sysv/linux/sh/sh3/register-dump.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/register-dump.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/register-dump.h: Likewise.
* sysdeps/unix/sysv/linux/Makefile (tests-internal): Add
tst-sigcontextinfo-get_pc.
* sysdeps/unix/sysv/linux/tst-sigcontextinfo-get_pc.c: New file.
(CFLAGS-tst-sigcontextinfo-get_pc.c): New rule.
|
||
|
Florian Weimer
|
1d714fd95d |
nptl: Move pthread_attr_getdetachstate implementation into libc
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> |
||
|
Florian Weimer
|
a635d756ff |
nptl: Move pthread_attr_init implementation into libc
Both the original GLIB_2.0 version and the current GLIBC_2.1 version need to be moved. |
||
|
Joseph Myers
|
42760d7646 |
Make totalorder and totalordermag functions take pointer arguments.
The resolution of C floating-point Clarification Request 25 <http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2397.htm#dr_25> is that the totalorder and totalordermag functions should take pointer arguments, and this has been adopted in C2X (with const added; note that the integration of this change into C2X is present in the C standard git repository but postdates the most recent public PDF draft). This patch updates glibc accordingly. As a defect resolution, the API is changed unconditionally rather than supporting any sort of TS 18661-1 mode for compilation with the old version of the API. There are compat symbols for existing binaries that pass floating-point arguments directly. As a consequence of changing to pointer arguments, there are no longer type-generic macros in tgmath.h for these functions. Because of the fairly complicated logic for creating libm function aliases and determining the set of aliases to create in a given glibc configuration, rather than duplicating all that in individual source files to create the versioned and compat symbols, the source files for the various versions of totalorder functions are set up to redefine weak_alias before using libm_alias_* macros to create the symbols required. In turn, this requires creating a separate alias for each symbol version pointing to the same implementation (see binutils bug <https://sourceware.org/bugzilla/show_bug.cgi?id=23840>), which is done automatically using __COUNTER__. (As I noted in <https://sourceware.org/ml/libc-alpha/2018-10/msg00631.html>, it might well make sense for glibc's symbol versioning macros to do that alias creation with __COUNTER__ themselves, which would somewhat simplify the logic in the totalorder source files.) It is of course desirable to test the compat symbols. I did this with the generic libm-test machinery, but didn't wish to duplicate the actual tables of test inputs and outputs, and thought it risky to attempt to have a single object file refer to both default and compat versions of the same function in order to test them together. Thus, I created libm-test-compat_totalorder.inc and libm-test-compat_totalordermag.inc which include the generated .c files (with the processed version of those tables of inputs) from the non-compat tests, and added appropriate dependencies. I think this provides sufficient test coverage for the compat symbols without also needing to make the special ldbl-96 and ldbl-128ibm tests (of peculiarities relating to the representations of those formats that can't be covered in the generic tests) run for the compat symbols. Tests of compat symbols need to be internal tests, meaning _ISOMAC is not defined. Making some libm-test tests into internal tests showed up two other issues. GCC diagnoses duplicate macro definitions of __STDC_* macros, including __STDC_WANT_IEC_60559_TYPES_EXT__; I added an appropriate conditional and filed <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91451> for this issue. On ia64, include/setjmp.h ends up getting included indirectly from libm-symbols.h, resulting in conflicting definitions of the STR macro (also defined in libm-test-driver.c); I renamed the macros in include/setjmp.h. (It's arguable that we should have common internal headers used everywhere for stringizing and concatenation macros.) Tested for x86_64 and x86, and with build-many-glibcs.py. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT) || __MATH_DECLARING_FLOATN] (totalorder): Take pointer arguments. [__GLIBC_USE (IEC_60559_BFP_EXT) || __MATH_DECLARING_FLOATN] (totalordermag): Likewise. * manual/arith.texi (totalorder): Likewise. (totalorderf): Likewise. (totalorderl): Likewise. (totalorderfN): Likewise. (totalorderfNx): Likewise. (totalordermag): Likewise. (totalordermagf): Likewise. (totalordermagl): Likewise. (totalordermagfN): Likewise. (totalordermagfNx): Likewise. * math/tgmath.h (__TGMATH_BINARY_REAL_RET_ONLY): Remove macro. [__GLIBC_USE (IEC_60559_BFP_EXT)] (totalorder): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (totalordermag): Likewise. * math/Versions (GLIBC_2.31): Add totalorder, totalorderf, totalorderl, totalordermag, totalordermagf, totalordermagl, totalorderf32, totalorderf64, totalorderf32x, totalordermagf32, totalordermagf64, totalordermagf32x, totalorderf64x, totalordermagf64x, totalorderf128 and totalordermagf128. * math/Makefile (libm-test-funcs-noauto): Add compat_totalorder and compat_totalordermag. (libm-test-funcs-compat): New variable. (libm-tests-compat): Likewise. (tests): Do not include compat tests. (tests-internal): Add compat tests. ($(foreach t,$(libm-tests-base), $(objpfx)$(t)-compat_totalorder.o)): Depend on $(objpfx)libm-test-totalorder.c. ($(foreach t,$(libm-tests-base), $(objpfx)$(t)-compat_totalordermag.o): Depend on $(objpfx)libm-test-totalordermag.c. (tgmath3-macros): Remove totalorder and totalordermag. * math/libm-test-compat_totalorder.inc: New file. * math/libm-test-compat_totalordermag.inc: Likewise. * math/libm-test-driver.c (struct test_ff_i_data): Update comment. (RUN_TEST_fpfp_b): New macro. (RUN_TEST_LOOP_fpfp_b): Likewise. * math/libm-test-totalorder.inc (totalorder_test_data): Use TEST_fpfp_b. (totalorder_test): Condition on [!COMPAT_TEST]. (do_test): Likewise. * math/libm-test-totalordermag.inc (totalordermag_test_data): Use TEST_fpfp_b. (totalordermag_test): Condition on [!COMPAT_TEST]. (do_test): Likewise. * math/gen-tgmath-tests.py (Tests.add_all_tests): Remove totalorder and totalordermag. * math/test-tgmath.c (NCALLS): Change to 132. (F(compile_test)): Do not call totalorder or totalordermag. (F(totalorder)): Remove. (F(totalordermag)): Likewise. * include/float.h (__STDC_WANT_IEC_60559_TYPES_EXT__): Do not define if [__STDC_WANT_IEC_60559_TYPES_EXT__]. * include/setjmp.h [!_ISOMAC] (STR_HELPER): Rename to SJSTR_HELPER. [!_ISOMAC] (STR): Rename to SJSTR. Update call to STR_HELPER. [!_ISOMAC] (TEST_SIZE): Update call to STR. [!_ISOMAC] (TEST_ALIGN): Likewise. [!_ISOMAC] (TEST_OFFSET): Likewise. * sysdeps/ieee754/dbl-64/s_totalorder.c: Include <shlib-compat.h> and <first-versions.h>. (__totalorder): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/dbl-64/s_totalordermag.c: Include <shlib-compat.h> and <first-versions.h>. (__totalordermag): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/dbl-64/wordsize-64/s_totalorder.c: Include <shlib-compat.h> and <first-versions.h>. (__totalorder): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/dbl-64/wordsize-64/s_totalordermag.c: Include <shlib-compat.h> and <first-versions.h>. (__totalordermag): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/float128/float128_private.h (__totalorder_compatl): New macro. (__totalordermag_compatl): Likewise. * sysdeps/ieee754/flt-32/s_totalorderf.c: Include <shlib-compat.h> and <first-versions.h>. (__totalorderf): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/flt-32/s_totalordermagf.c: Include <shlib-compat.h> and <first-versions.h>. (__totalordermagf): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-128/s_totalorderl.c: Include <shlib-compat.h> and <first-versions.h>. (__totalorderl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-128/s_totalordermagl.c: Include <shlib-compat.h> and <first-versions.h>. (__totalordermagl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-128ibm/s_totalorderl.c: Include <shlib-compat.h>. (__totalorderl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-128ibm/s_totalordermagl.c: Include <shlib-compat.h>. (__totalordermagl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-96/s_totalorderl.c: Include <shlib-compat.h> and <first-versions.h>. (__totalorderl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-96/s_totalordermagl.c: Include <shlib-compat.h> and <first-versions.h>. (__totalordermagl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-opt/nldbl-totalorder.c (totalorderl): Take pointer arguments. * sysdeps/ieee754/ldbl-opt/nldbl-totalordermag.c (totalordermagl): Likewise. * sysdeps/ieee754/ldbl-128ibm/test-totalorderl-ldbl-128ibm.c (do_test): Update calls to totalorderl and totalordermagl. * sysdeps/ieee754/ldbl-96/test-totalorderl-ldbl-96.c (do_test): Update calls to totalorderl and totalordermagl. * sysdeps/mach/hurd/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/csky/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. |
||
|
Florian Weimer
|
17e1347452 |
nptl: Remove pthread_self compatibility symbol from libpthread
The symbol is no longer needed because since glibc 2.30, the dynamic loader continues searching for the symbol in libc. |
||
|
Florian Weimer
|
fa57c30193 | nptl: Move pthread_attr_destroy implementation into libc | ||
|
Florian Weimer
|
dda373b00e | nptl: Move pthread_equal implementation into libc | ||
|
Adhemerval Zanella
|
d665367f59 |
linux: Enable vDSO for static linking as default (BZ#19767)
This patch assumes static vDSO is supported as default, it is now supported on all current architectures that support vDSO. It allows removing both ALWAYS_USE_VSYSCALL define, which an architecture requires to explicit define and USE_VSYSCALL (which defines vDSO only for shared or if architecture defines ALWAYS_USE_VSYSCALL). Checked with a build against all affected ABIs. [BZ #19767] * sysdeps/unix/sysv/linux/aarch64/sysdep.h (ALWAYS_USE_VSYSCALL): Remove definition. * sysdeps/unix/sysv/linux/arm/sysdep.h (ALWAYS_USE_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/i386/sysdep.h (ALWAYS_USE_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/mips/mips32/sysdep.h (ALWAYS_USE_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h (ALWAYS_USE_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h (ALWAYS_USE_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h (ALWAYS_USE_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h (ALWAYS_USE_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/riscv/sysdep.h (ALWAYS_USE_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h (ALWAYS_USE_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h (ALWAYS_USE_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/sparc/sysdep.h (ALWAYS_USE_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/x86_64/sysdep.h (ALWAYS_USE_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/x86/libc-vdso.h: Remove #if USE_VSYSCALL. * sysdeps/unix/sysv/linux/sysdep-vdso.h: Likewise. * sysdeps/unix/sysv/linux/sysdep.h (ALWAYS_USE_VSYSCALL, USE_VSYSCALL): Remove defitions. |
||
Mike Crowe
|
9d20e22e46 |
nptl: Add POSIX-proposed pthread_mutex_clocklock
Add POSIX-proposed pthread_mutex_clocklock function that works like pthread_mutex_timedlock but takes a clockid parameter to measure the abstime parameter against. * sysdeps/nptl/pthread.h: Add pthread_mutex_clocklock. * nptl/DESIGN-systemtap-probes.txt: Likewise. * nptl/pthread_mutex_timedlock.c (__pthread_mutex_clocklock_common): Rename from __pthread_mutex_timedlock and add clockid parameter. Pass this parameter to lll_clocklock and lll_clocklock_elision in place of CLOCK_REALTIME. (__pthread_mutex_clocklock): New function to add LIBC_PROBE and validate clockid parameter before calling __pthread_mutex_clocklock_common. (__pthread_mutex_timedlock): New implementation to add LIBC_PROBE and calls __pthread_mutex_clocklock_common passing CLOCK_REALTIME as the clockid. * nptl/Makefile: Add tst-mutex11.c. * nptl/tst-abstime.c (th): Add tests for pthread_mutex_clocklock. * nptl/tst-mutex11.c: New tests for passing invalid and unsupported clockid parameters to pthread_mutex_clocklock. * nptl/tst-mutex5.c (do_test_clock): Rename from do_test and take clockid parameter to indicate which clock to be used. Call pthread_mutex_timedlock or pthread_mutex_clocklock as appropriate. (do_test): Call do_test_clock to separately test pthread_mutex_timedlock, pthread_mutex_clocklock(CLOCK_REALTIME) and pthread_mutex_clocklock(CLOCK_MONOTONIC). * nptl/tst-mutex9.c: Likewise. * nptl/Versions (GLIBC_2.30): Add pthread_mutex_clocklock. * sysdeps/unix/sysv/linux/aarch64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/microblaze/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist (GLIBC_2.30): Likewise. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> |
||
|
Mike Crowe
|
e996fa72a9 |
nptl: Add POSIX-proposed pthread_rwlock_clockrdlock & pthread_rwlock_clockwrlock
Add:
int pthread_rwlock_clockrdlock (pthread_rwlock_t *rwlock,
clockid_t clockid,
const struct timespec *abstime)
and:
int pthread_rwlock_clockwrlock (pthread_rwlock_t *rwlock,
clockid_t clockid,
const struct timespec *abstime)
which behave like pthread_rwlock_timedrdlock and
pthread_rwlock_timedwrlock respectively, except they always measure
abstime against the supplied clockid. The functions currently support
CLOCK_REALTIME and CLOCK_MONOTONIC and return EINVAL if any other
clock is specified.
* sysdeps/nptl/pthread.h: Add pthread_rwlock_clockrdlock and
pthread_wrlock_clockwrlock.
* nptl/Makefile: Build pthread_rwlock_clockrdlock.c and
pthread_rwlock_clockwrlock.c.
* nptl/pthread_rwlock_clockrdlock.c: Implement
pthread_rwlock_clockrdlock.
* nptl/pthread_rwlock_clockwrlock.c: Implement
pthread_rwlock_clockwrlock.
* nptl/pthread_rwlock_common.c (__pthread_rwlock_rdlock_full): Add
clockid parameter and verify that it indicates a supported clock on
entry so that we fail even if it doesn't end up being used. Pass
that clock on to futex_abstimed_wait when necessary.
(__pthread_rwlock_wrlock_full): Likewise.
* nptl/pthread_rwlock_rdlock.c: (__pthread_rwlock_rdlock): Pass
CLOCK_REALTIME to __pthread_rwlock_rdlock_full even though it won't
be used because there's no timeout.
* nptl/pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock): Pass
CLOCK_REALTIME to __pthread_rwlock_wrlock_full even though it won't
be used because there is no timeout.
* nptl/pthread_rwlock_timedrdlock.c (pthread_rwlock_timedrdlock):
Pass CLOCK_REALTIME to __pthread_rwlock_rdlock_full since abstime
uses that clock.
* nptl/pthread_rwlock_timedwrlock.c (pthread_rwlock_timedwrlock):
Pass CLOCK_REALTIME to __pthread_rwlock_wrlock_full since abstime
uses that clock.
* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist (GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/microblaze/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist
(GLIBC_2.30): Likewise.
* nptl/tst-abstime.c (th): Add pthread_rwlock_clockrdlock and
pthread_rwlock_clockwrlock timeout tests to match the existing
pthread_rwlock_timedrdloock and pthread_rwlock_timedwrlock tests.
* nptl/tst-rwlock14.c (do_test): Likewise.
* nptl/tst-rwlock6.c Invent verbose_printf macro, and use for
ancillary output throughout. (tf): Accept thread_args structure so
that rwlock, a clockid and function name can be passed to the
thread. (do_test_clock): Rename from do_test. Accept clockid
parameter to specify test clock. Use the magic clockid value of
CLOCK_USE_TIMEDLOCK to indicate that pthread_rwlock_timedrdlock and
pthread_rwlock_timedwrlock should be tested, otherwise pass the
specified clockid to pthread_rwlock_clockrdlock and
pthread_rwlock_clockwrlock. Use xpthread_create and xpthread_join.
(do_test): Call do_test_clock to test each clockid in turn.
* nptl/tst-rwlock7.c: Likewise.
* nptl/tst-rwlock9.c (writer_thread, reader_thread): Accept
thread_args structure so that the (now int) thread number, the
clockid and the function name can be passed to the thread.
(do_test_clock): Renamed from do_test. Pass the necessary
thread_args when creating the reader and writer threads. Use
xpthread_create and xpthread_join.
(do_test): Call do_test_clock to test each clockid in turn.
* manual/threads.texi: Add documentation for
pthread_rwlock_clockrdlock and pthread_rwlock_clockwrclock.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
||
|
Mike Crowe
|
afe4de7d28 |
nptl: Add POSIX-proposed pthread_cond_clockwait
Add:
int pthread_cond_clockwait (pthread_cond_t *cond,
pthread_mutex_t *mutex,
clockid_t clockid,
const struct timespec *abstime)
which behaves just like pthread_cond_timedwait except it always measures
abstime against the supplied clockid. Currently supports CLOCK_REALTIME
and
CLOCK_MONOTONIC and returns EINVAL if any other clock is specified.
Includes feedback from many others. This function was originally
proposed[1] as pthread_cond_timedwaitonclock_np, but The Austin Group
preferred the new name.
* nptl/Makefile: Add tst-cond26 and tst-cond27
* nptl/Versions (GLIBC_2.30): Add pthread_cond_clockwait
* sysdeps/nptl/pthread.h: Likewise
* nptl/forward.c: Add __pthread_cond_clockwait
* nptl/forward.c: Likewise
* nptl/pthreadP.h: Likewise
* sysdeps/nptl/pthread-functions.h: Likewise
* nptl/pthread_cond_wait.c (__pthread_cond_wait_common): Add
clockid parameter and comment describing why we don't need to
check
its value. Use that value when calling
futex_abstimed_wait_cancelable rather than reading the clock
from
the flags. (__pthread_cond_wait): Pass unused clockid parameter.
(__pthread_cond_timedwait): Read clock from flags and pass it to
__pthread_cond_wait_common. (__pthread_cond_clockwait): Add new
function with weak alias from pthread_cond_clockwait.
* sysdeps/mach/hurd/i386/libpthread.abilist (GLIBC_2.30):
* Likewise.
* sysdeps/unix/sysv/linux/aarch64/libpthread.abilist
* (GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30):
* Likewise.
* sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30):
* Likewise.
* sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30):
* Likewise.
* sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30):
* Likewise.
* sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30):
* Likewise.
* sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30):
* Likewise.
* sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/microblaze/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30):
* Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30):
* Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist
(GLIBC_2.30): Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist
(GLIBC_2.30): Likewise.
* nptl/tst-cond11.c (run_test): Support testing
pthread_cond_clockwait too by using a special magic
CLOCK_USE_ATTR_CLOCK value to determine whether to call
pthread_cond_timedwait or pthread_cond_clockwait. (do_test):
Pass
CLOCK_USE_ATTR_CLOCK for existing tests, and add new tests using
all combinations of CLOCK_MONOTONIC and CLOCK_REALTIME.
* ntpl/tst-cond26.c: New test for passing unsupported and
* invalid
clocks to pthread_cond_clockwait.
* nptl/tst-cond27.c: Add test similar to tst-cond5.c, but using
struct timespec and pthread_cond_clockwait.
* manual/threads.texi: Document pthread_cond_clockwait. The
* comment
was provided by Carlos O'Donell.
[1] https://sourceware.org/ml/libc-alpha/2015-07/msg00193.html
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
||
|
Mike Crowe
|
6615f77978 |
nptl: Add POSIX-proposed sem_clockwait
Add: int sem_clockwait (sem_t *sem, clockid_t clock, const struct timespec *abstime) which behaves just like sem_timedwait, but measures abstime against the specified clock. Currently supports CLOCK_REALTIME and CLOCK_MONOTONIC and sets errno == EINVAL if any other clock is specified. * nptl/sem_waitcommon.c (do_futex_wait, __new_sem_wait_slow): Add clockid parameters to indicate the clock which abstime should be measured against. * nptl/sem_timedwait.c (sem_timedwait), nptl/sem_wait.c (__new_sem_wait): Pass CLOCK_REALTIME as clockid to __new_sem_wait_slow. * nptl/sem_clockwait.c: New file to implement sem_clockwait based on sem_timedwait.c. * nptl/Makefile: Add sem_clockwait.c source file. Add CFLAGS for sem_clockwait.c to match those used for sem_timedwait.c. * sysdeps/pthread/semaphore.h: Add sem_clockwait. * nptl/Versions (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/aarch64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/microblaze/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist (GLIBC_2.30): Likewise. * nptl/tst-sem17.c: Add new test for passing invalid clock to sem_clockwait. * nptl/tst-sem13.c, nptl/tst-sem5.c: Modify existing sem_timedwait tests to also test sem_clockwait. * manual/threads.texi: Document sem_clockwait. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> |
||
|
Florian Weimer
|
41d6f74e6c |
nptl: Remove vfork IFUNC-based forwarder from libpthread [BZ #20188]
With commit
|
||
|
Florian Weimer
|
5a659ccc0e |
io: Remove copy_file_range emulation [BZ #24744]
The kernel is evolving this interface (e.g., removal of the restriction on cross-device copies), and keeping up with that is difficult. Applications which need the function should run kernels which support the system call instead of relying on the imperfect glibc emulation. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> |
||
|
Florian Weimer
|
51ea67d548 |
Linux: Add getdents64 system call
No 32-bit system call wrapper is added because the interface is problematic because it cannot deal with 64-bit inode numbers and 64-bit directory hashes. A future commit will deprecate the undocumented getdirentries and getdirentries64 functions. Reviewed-by: Carlos O'Donell <carlos@redhat.com> |
||
|
Florian Weimer
|
6b33f373c7 |
arm: Remove ioperm/iopl/inb/inw/inl/outb/outw/outl support
Linux only supports the required ISA sysctls on StrongARM devices, which are armv4 and no longer tested during glibc development and probably bit-rotted by this point. (No reported test results, and the last discussion of armv4 support was in the glibc 2.19 release notes.) |
||
|
Florian Weimer
|
04b261bdc1 |
Linux: Add the tgkill function
The tgkill function is sometimes used in crash handlers. <bits/signal_ext.h> follows the same approach as <bits/unistd_ext.h> (which was added for the gettid system call wrapper). Reviewed-by: Carlos O'Donell <carlos@redhat.com> |
||
|
Florian Weimer
|
7b807a35a8 |
misc: Add twalk_r function
The twalk function is very difficult to use in a multi-threaded program because there is no way to pass external state to the iterator function. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> |
||
Stefan Liebler
|
7c6513082b |
Fix output of LD_SHOW_AUXV=1.
Starting with commit
|
||
|
Joseph Myers
|
c4f50205e1 |
Add some spaces before '('.
This patch fixes various places where a space should have been present
before '(' in accordance with the GNU Coding Standards. Most but not
all of the fixes in this patch are for calls to sizeof (but it's not
exhaustive regarding such calls that should be fixed).
Tested for x86_64, and with build-many-glibcs.py.
* benchtests/bench-strcpy.c (do_test): Use space before '('.
* benchtests/bench-string.h (cmdline_process_function): Likewise.
* benchtests/bench-strlen.c (do_test): Likewise.
(test_main): Likewise.
* catgets/gencat.c (read_old): Likewise.
* elf/cache.c (load_aux_cache): Likewise.
* iconvdata/bug-iconv8.c (do_test): Likewise.
* math/test-tgmath-ret.c (do_test): Likewise.
* nis/nis_call.c (rec_dirsearch): Likewise.
* nis/nis_findserv.c (__nis_findfastest_with_timeout): Likewise.
* nptl/tst-audit-threads.c (do_test): Likewise.
* nptl/tst-cancel4-common.h (set_socket_buffer): Likewise.
* nss/nss_test1.c (init): Likewise.
* nss/test-netdb.c (test_hosts): Likewise.
* posix/execvpe.c (maybe_script_execute): Likewise.
* stdio-common/tst-fmemopen4.c (do_test): Likewise.
* stdio-common/tst-printf.c (do_test): Likewise.
* stdio-common/vfscanf-internal.c (__vfscanf_internal): Likewise.
* stdlib/fmtmsg.c (NKEYWORDS): Likewise.
* stdlib/qsort.c (STACK_SIZE): Likewise.
* stdlib/test-canon.c (do_test): Likewise.
* stdlib/tst-swapcontext1.c (do_test): Likewise.
* string/memcmp.c (OPSIZ): Likewise.
* string/test-strcpy.c (do_test): Likewise.
(do_random_tests): Likewise.
* string/test-strlen.c (do_test): Likewise.
(test_main): Likewise.
* string/test-strrchr.c (do_test): Likewise.
(do_random_tests): Likewise.
* string/tester.c (test_memrchr): Likewise.
(test_memchr): Likewise.
* sysdeps/generic/memcopy.h (OPSIZ): Likewise.
* sysdeps/generic/unwind-dw2.c (execute_stack_op): Likewise.
* sysdeps/generic/unwind-pe.h (read_sleb128): Likewise.
(read_encoded_value_with_base): Likewise.
* sysdeps/hppa/dl-machine.h (elf_machine_runtime_setup): Likewise.
* sysdeps/hppa/fpu/feupdateenv.c (__feupdateenv): Likewise.
* sysdeps/ia64/fpu/sfp-machine.h (TI_BITS): Likewise.
* sysdeps/mach/hurd/spawni.c (__spawni): Likewise.
* sysdeps/posix/spawni.c (maybe_script_execute): Likewise.
* sysdeps/powerpc/fpu/tst-setcontext-fpscr.c (query_auxv):
Likewise.
* sysdeps/unix/sysv/linux/aarch64/bits/procfs.h (ELF_NGREG):
Likewise.
* sysdeps/unix/sysv/linux/arm/bits/procfs.h (ELF_NGREG): Likewise.
* sysdeps/unix/sysv/linux/arm/ioperm.c (init_iosys): Likewise.
* sysdeps/unix/sysv/linux/csky/bits/procfs.h (ELF_NGREG):
Likewise.
* sysdeps/unix/sysv/linux/m68k/bits/procfs.h (ELF_NGREG):
Likewise.
* sysdeps/unix/sysv/linux/nios2/bits/procfs.h (ELF_NGREG):
Likewise.
* sysdeps/unix/sysv/linux/spawni.c (maybe_script_execute):
Likewise.
* sysdeps/unix/sysv/linux/x86/bits/procfs.h (ELF_NGREG): Likewise.
* sysdeps/unix/sysv/linux/x86/bits/sigcontext.h
(FP_XSTATE_MAGIC2_SIZE): Likewise.
* sysdeps/x86/fpu/sfp-machine.h (TI_BITS): Likewise.
* time/test_time.c (main): Likewise.
|
||
|
Adhemerval Zanella
|
e442e40de5 |
io: Consolidate lockf implementation
With internal fcntl64 internal (commit
|
||
|
Florian Weimer
|
1d0fc21382 |
Linux: Add gettid system call wrapper [BZ #6399]
This commit adds gettid to <unistd.h> on Linux, and not to the kernel-independent GNU API. gettid is now supportable on Linux because too many things assume a 1:1 mapping between libpthread threads and kernel threads. Reviewed-by: Carlos O'Donell <carlos@redhat.com> |
||
Aurelien Jarno
|
fe20bb1d60 |
ARM: fix kernel assisted atomics with GCC 8 (bug 24034)
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.
|
||
|
Joseph Myers
|
04277e02d7 |
Update copyright dates with scripts/update-copyrights.
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise. |
||
H.J. Lu
|
a092ca9453 |
Add getcpu
Add #include <sched.h> int getcpu (unsigned int *cpu, unsigned int *node); to return currently used CPU and NUMA node. Tested on x86-64, x32 and i686 as well as with build-many-glibcs.py. * NEWS: Mention getcpu. * include/sched.h (__getcpu): New libc_hidden_proto. * manual/resource.texi: Document getcpu. * sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add getcpu. * sysdeps/unix/sysv/linux/Versions (GLIBC_2.29): Add getcpu. * sysdeps/unix/sysv/linux/aarch64/libc.abilist: Add getcpu. * sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/bits/sched.h (getcpu): New prototype. * sysdeps/unix/sysv/linux/getcpu.c: New file. * sysdeps/unix/sysv/linux/tst-skeleton-affinity.c (test_size): Also check getcpu. |
||
|
Florian Weimer
|
3a3fb75572 |
posix: New function posix_spawn_file_actions_addfchdir_np [BZ #17405]
Along with posix_spawn_file_actions_addchdir, posix_spawn_file_actions_addfchdir is the subject of a change proposal for POSIX: <http://austingroupbugs.net/view.php?id=1208> |
||
Rafael Ávila de Espíndola
|
6af956e5c0 |
Enable VDSO for static linking on arm
I have tested that this builds and the resulting program still work. The kernel in gcc117 (which I ussed for testing) seems to be missing https://patchwork.kernel.org/patch/10060431/, so the vdso is never used. [BZ #19767] * sysdeps/unix/sysv/linux/arm/init-first.c: Remove #ifdef SHARED. * sysdeps/unix/sysv/linux/arm/libc-vdso.h: Remove #ifdef SHARED. * sysdeps/unix/sysv/linux/arm/sysdep.h: Define ALWAYS_USE_VSYSCALL. |
||
|
Joseph Myers
|
1283c478aa |
Fix Arm __ASSUME_COPY_FILE_RANGE (bug 23915).
The generic kernel-features.h defines __ASSUME_COPY_FILE_RANGE for 4.5 and later kernels. However, for 32-bit Arm binaries running on 64-bit Arm kernels, the syscall was only wired up in the 4.7 kernel, although the 32-bit Arm kernel had the syscall from 4.5 onwards. This patch corrects the Arm kernel-features.h to undefine the macro for configured minimum kernel versions before 4.7. Tested (compilation only) with a build-many-glibcs.py build for arm-linux-gnueabi. [BZ #23915] * sysdeps/unix/sysv/linux/arm/kernel-features.h [__LINUX_KERNEL_VERSION < 0x040700] (__ASSUME_COPY_FILE_RANGE): Undefine. |
||
Szabolcs Nagy
|
a502c5294b |
Remove the error handling wrapper from pow
Introduce new pow symbol version that doesn't do SVID compatible error handling. The standard errno and fp exception based error handling is inline in the new code and does not have significant overhead. The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty w_pow.c and enabled for targets with their own pow implementation or ifunc dispatch on __ieee754_pow by including math/w_pow.c. The compatibility symbol version still uses the wrapper with SVID error handling around the new code. There is no new symbol version nor compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv). On targets where previously powl was an alias of pow, now it points to the compatibility symbol with the wrapper, because it still need the SVID compatible error handling. This affects NO_LONG_DOUBLE (e.g. arm) and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well. The __pow_finite symbol is now an alias of pow. Both __pow_finite and pow set errno and thus not const functions. The ia64 asm is changed so the compat and new symbol versions map to the same address. On x86_64 #include <math.h> was added before macro definitions that may affect that header. Tested with build-many-glibcs.py. * math/Versions (GLIBC_2.29): Add pow. * math/w_pow_compat.c (__pow_compat): Change to versioned compat symbol. * math/w_pow.c: New file. * sysdeps/i386/fpu/w_pow.c: New file. * sysdeps/ia64/fpu/e_pow.S: Add versioned symbols. * sysdeps/ieee754/dbl-64/e_pow.c (__ieee754_pow): Rename to __pow and add necessary aliases. * sysdeps/ieee754/dbl-64/w_pow.c: New file. * sysdeps/m68k/m680x0/fpu/w_pow.c: New file. * sysdeps/mach/hurd/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Update. * sysdeps/unix/sysv/linux/arm/libm.abilist: Update. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Update. * sysdeps/unix/sysv/linux/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update. * sysdeps/unix/sysv/linux/sh/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update. * sysdeps/x86_64/fpu/multiarch/e_pow-fma.c (__ieee754_pow): Rename to __pow. * sysdeps/x86_64/fpu/multiarch/e_pow-fma4.c (__ieee754_pow): Likewise. * sysdeps/x86_64/fpu/multiarch/e_pow.c (__ieee754_pow): Likewise. * sysdeps/x86_64/fpu/multiarch/w_pow.c: New file. |
||
|
Szabolcs Nagy
|
718d6542f2 |
Remove the error handling wrapper from log2
Introduce new log2 symbol version that doesn't do SVID compatible error handling. The standard errno and fp exception based error handling is inline in the new code and does not have significant overhead. The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty w_log2.c and enabled for targets with their own log2 implementation by including math/w_log2.c. The compatibility symbol version still uses the wrapper with SVID error handling around the new code. There is no new symbol version nor compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv). On targets where previously log2l was an alias of log2, now it points to the compatibility symbol with the wrapper, because it still need the SVID compatible error handling. This affects NO_LONG_DOUBLE (e.g. arm) and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well. The __log2_finite symbol is now an alias of log2. Both __log2_finite and log2 set errno and thus not const functions. The ia64 asm is changed so the compat and new symbol versions map to the same address. Tested with build-many-glibcs.py. * math/Versions (GLIBC_2.29): Add log2. * math/w_log2_compat.c (__log2_compat): Change to versioned compat symbol. * math/w_log2.c: New file. * sysdeps/i386/fpu/w_log2.c: New file. * sysdeps/ia64/fpu/e_log2.S: Add versioned symbols. * sysdeps/ieee754/dbl-64/e_log2.c (__ieee754_log2): Rename to __log2 and add necessary aliases. * sysdeps/ieee754/dbl-64/w_log2.c: New file. * sysdeps/m68k/m680x0/fpu/w_log2.c: New file. * sysdeps/mach/hurd/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Update. * sysdeps/unix/sysv/linux/arm/libm.abilist: Update. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Update. * sysdeps/unix/sysv/linux/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update. * sysdeps/unix/sysv/linux/sh/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update. |
||
|
Szabolcs Nagy
|
f29b7c492d |
Remove the error handling wrapper from log
Introduce new log symbol version that doesn't do SVID compatible error handling. The standard errno and fp exception based error handling is inline in the new code and does not have significant overhead. The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty w_log.c and enabled for targets with their own log implementation by including math/w_log.c. The compatibility symbol version still uses the wrapper with SVID error handling around the new code. There is no new symbol version nor compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv). On targets where previously logl was an alias of log, now it points to the compatibility symbol with the wrapper, because it still need the SVID compatible error handling. This affects NO_LONG_DOUBLE (e.g. arm) and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well. The __log_finite symbol is now an alias of log. Both __log_finite and log set errno and thus not const functions. The ia64 asm is changed so the compat and new symbol versions map to the same address. On x86_64 #include <math.h> was added before macro definitions that may affect that header. Tested with build-many-glibcs.py. * math/Versions (GLIBC_2.29): Add log. * math/w_log_compat.c (__log_compat): Change to versioned compat symbol. * math/w_log.c: New file. * sysdeps/i386/fpu/w_log.c: New file. * sysdeps/ia64/fpu/e_log.S: Update. * sysdeps/ieee754/dbl-64/e_log.c (__ieee754_log): Rename to __log and add necessary aliases. * sysdeps/ieee754/dbl-64/w_log.c: New file. * sysdeps/m68k/m680x0/fpu/w_log.c: New file. * sysdeps/mach/hurd/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Update. * sysdeps/unix/sysv/linux/arm/libm.abilist: Update. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Update. * sysdeps/unix/sysv/linux/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update. * sysdeps/unix/sysv/linux/sh/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update. * sysdeps/x86_64/fpu/multiarch/e_log-avx.c (__ieee754_log): Rename to __log. * sysdeps/x86_64/fpu/multiarch/e_log-fma.c (__ieee754_log): Likewise. * sysdeps/x86_64/fpu/multiarch/e_log-fma4.c (__ieee754_log): Likewise. * sysdeps/x86_64/fpu/multiarch/e_log.c (__ieee754_log): Likewise. * sysdeps/x86_64/fpu/multiarch/w_log.c: New file. |
||
|
Szabolcs Nagy
|
c20a10561a |
Remove the error handling wrapper from exp and exp2
Introduce new exp and exp2 symbol version that don't do SVID compatible error handling. The standard errno and fp exception based error handling is inline in the new code and does not have significant overhead. The double precision wrappers are disabled for sysdeps/ieee754/dbl-64 by using empty w_exp.c and w_exp2.c files, the math/w_exp.c and math/w_exp2.c files use the wrapper template and can be included by targets that have their own exp and exp2 implementations or use ifunc on the glibc internal __ieee754_exp symbol. The compatibility symbol versions still use the wrapper with SVID error handling around the new code. There is no new symbol version nor compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv). On targets where previously expl and exp2l were aliases of exp and exp2, now they point to the compatibility symbols with the wrapper, because they still need the SVID compatible error handling. This affects NO_LONG_DOUBLE (e.g arm) and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well. The _finite symbols are now aliases of the standard symbols (they have no performance advantage anymore). Both the standard symbols and _finite symbols set errno and thus not const functions. The ia64 asm is changed so the compat and new symbol versions map to the same address. On x86_64 #include <math.h> was added before macro definitions that may affect that header (the new macro name is __exp instead of __ieee754_exp which breaks some math.h macros). Tested with build-many-glibcs.py. * math/Versions (GLIBC_2.29): Add exp and exp2. * math/w_exp2_compat.c (__exp2_compat): Change to versioned compat symbol, handle NO_LONG_DOUBLE and LONG_DOUBLE_COMPAT explicitly. * math/w_exp_compat.c (__exp_compat): Likewise. * math/w_exp.c: New file. * math/w_exp2.c: New file. * sysdeps/i386/fpu/w_exp.c: New file. * sysdeps/i386/fpu/w_exp2.c: New file. * sysdeps/ia64/fpu/e_exp.S: Add versioned symbols. * sysdeps/ia64/fpu/e_exp2.S: Likewise. * sysdeps/ieee754/dbl-64/e_exp.c (__ieee754_exp): Rename to __exp and add necessary aliases. * sysdeps/ieee754/dbl-64/e_exp2.c (__ieee754_exp2): Rename to __exp2 and add necessary aliases. * sysdeps/ieee754/dbl-64/w_exp.c: New file. * sysdeps/ieee754/dbl-64/w_exp2.c: New file. * sysdeps/m68k/m680x0/fpu/w_exp.c: New file. * sysdeps/m68k/m680x0/fpu/w_exp2.c: New file. * sysdeps/mach/hurd/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Update. * sysdeps/unix/sysv/linux/arm/libm.abilist: Update. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Update. * sysdeps/unix/sysv/linux/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update. * sysdeps/unix/sysv/linux/sh/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update. * sysdeps/x86_64/fpu/multiarch/e_exp-avx.c (__exp1): Remove. (__ieee754_exp): Rename to __exp. * sysdeps/x86_64/fpu/multiarch/e_exp-fma.c (__exp1): Remove. (__ieee754_exp): Rename to __exp. * sysdeps/x86_64/fpu/multiarch/e_exp-fma4.c (__exp1): Remove. (__ieee754_exp): Rename to __exp. * sysdeps/x86_64/fpu/multiarch/e_exp.c (__ieee754_exp): Rename to __exp. * sysdeps/x86_64/fpu/multiarch/w_exp.c: New file. |
||
|
Joseph Myers
|
596cc360aa |
Fix __ASSUME_MLOCK2 for ARM, MicroBlaze (bug 23867).
The generic kernel-features.h defines __ASSUME_MLOCK2 for 4.4 and later kernels. However, for 32-bit ARM binaries running on 64-bit ARM kernels, and for MicroBlaze, the syscall was only wired up in the 4.7 kernel. (32-bit ARM kernels did have the syscall from 4.4 onwards.) This patch duly arranges for the macro to be undefined for those architectures for kernels before 4.7. Tested with build-many-glibcs.py for its ARM and MicroBlaze configurations. [BZ #23867] * sysdeps/unix/sysv/linux/arm/kernel-features.h [__LINUX_KERNEL_VERSION < 0x040700] (__ASSUME_MLOCK2): Undefine. * sysdeps/unix/sysv/linux/microblaze/kernel-features.h [__LINUX_KERNEL_VERSION < 0x040700] (__ASSUME_MLOCK2): Undefine. |
||
|
Florian Weimer
|
4a938cb273 | posix: New function posix_spawn_file_actions_addchdir_np [BZ #17405] | ||
|
Joseph Myers
|
8c8d2a8aff |
Move SHMLBA to its own header.
One difference between bits/shm.h headers for architectures using the Linux kernel is the definition of SHMLBA. This was noted in <https://sourceware.org/ml/libc-alpha/2018-09/msg00175.html> as a reason why even a new architecture (C-SKY) might need its own bits/shm.h; thus, splitting it out of bits/shm.h can allow less duplication of headers for new architectures. This patch moves that definition to its own header, bits/shmlba.h, to allow more sharing of headers between architectures. That move allows the arm, ia64 and sh variants of bits/shm.h to be removed, as they had no other significant differences from the generic bits/shm.h; powerpc and x86 have their own bits/shm.h but do not need to get their own bits/shmlba.h because they use the same SHMLBA as the generic header. Other architectures with their own bits/shm.h get their own bits/shmlba.h without being able to remove their own bits/shm.h until the generic one has been adapted to be able to handle more architectures (where, in addition to the differences seen for bits/msq.h and bits/sem.h, the position of shm_segsz in struct shmid_ds also depends on the architecture). Tested for x86_64 and x86, and with build-many-glibcs.py. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add bits/shmlba.h. * sysdeps/unix/sysv/linux/bits/shm.h: Include <bits/shmlba.h>. (SHMLBA): Remove macro. (__getpagesize): Remove function declaration. * sysdeps/unix/sysv/linux/hppa/bits/shm.h: Include <bits/shmlba.h>. (SHMLBA): Remove macro. * sysdeps/unix/sysv/linux/mips/bits/shm.h: Include <bits/shmlba.h>. (SHMLBA): Remove macro. * sysdeps/unix/sysv/linux/powerpc/bits/shm.h: Include <bits/shmlba.h>. (SHMLBA): Remove macro. (__getpagesize): Remove function declaration. * sysdeps/unix/sysv/linux/sparc/bits/shm.h: Include <bits/shmlba.h>. (SHMLBA): Remove macro. (__getshmlba): Remove function declaration. * sysdeps/unix/sysv/linux/x86/bits/shm.h: Include <bits/shmlba.h>. (SHMLBA): Remove macro. (__getpagesize): Remove function declaration. * sysdeps/unix/sysv/linux/arm/bits/shm.h: Remove file. * sysdeps/unix/sysv/linux/ia64/bits/shm.h: Likewise. * sysdeps/unix/sysv/linux/sh/bits/shm.h: Likewise. * sysdeps/unix/sysv/linux/bits/shmlba.h: New file. * sysdeps/unix/sysv/linux/arm/bits/shmlba.h: Likewise. * sysdeps/unix/sysv/linux/hppa/bits/shmlba.h: Likewise. * sysdeps/unix/sysv/linux/ia64/bits/shmlba.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/shmlba.h: Likewise. * sysdeps/unix/sysv/linux/sh/bits/shmlba.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/shmlba.h: Likewise. |