| Commit message (Collapse) | Author | Age | Files | Lines |
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* 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.
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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.
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To determine whether the default time_t interfaces are 32-bit
and so need conversions, or are 64-bit and so are compatible
with the internal 64-bit type without conversions, a macro
giving the size of the default time_t is also required.
This macro is called __TIMESIZE.
This macro can then be used instead of __WORDSIZE in msq-pad.h
and shm-pad.h files, which in turn allows removing their x86
variants, and in sem-pad.h files but keeping the x86 variant.
This patch was tested by running 'make check' on branch master
then applying this patch 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.
* bits/timesize.h: New file.
* stdlib/Makefile (headers): Add bits/timesize.h.
* sysdeps/unix/sysv/linux/bits/msq-pad.h
(__MSQ_PAD_AFTER_TIME): Use __TIMESIZE instead of __WORDSIZE.
* sysdeps/unix/sysv/linux/bits/sem-pad.h
(__SEM_PAD_AFTER_TIME): Likewise.
* sysdeps/unix/sysv/linux/bits/shm-pad.h
(__SHM_PAD_AFTER_TIME): Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/msq-pad.h
(__MSQ_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/sem-pad.h
(__SEM_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/shm-pad.h
(__SHM_PAD_BEFORE_TIME, __SHM_PAD_BETWEEN_TIME_AND_SEGSZ): Likewise.
* sysdeps/unix/sysv/linux/mips/bits/msq-pad.h
(__MSQ_PAD_AFTER_TIME, __MSQ_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/msq-pad.h
(__MSQ_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/sem-pad.h
(__SEM_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/shm-pad.h
(__SHM_PAD_BEFORE_TIME, __SHM_PAD_BETWEEN_TIME_AND_SEGSZ): Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/msq-pad.h
(__MSQ_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/sem-pad.h
(__SEM_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/shm-pad.h
(__SHM_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/x86/bits/msq-pad.h: Delete file.
* sysdeps/unix/sysv/linux/x86/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/x86/bits/timesize.h: New file.
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After my patch to move SHMLBA to its own header, the bits/shm.h
headers for architectures using the Linux kernel still vary in a few
ways: the use of __syscall_ulong_t; whether padding for 32-bit systems
is present before or after time fields, or missing altogether (mips,
x32); whether shm_segsz is before or after the time fields; whether,
if after time fields, there is extra padding before shm_segsz.
This patch arranges for a single header to be used. __syscall_ulong_t
is safe to use everywhere, while bits/shm-pad.h is added with new
macros __SHM_PAD_AFTER_TIME, __SHM_PAD_BEFORE_TIME,
__SHM_SEGSZ_AFTER_TIME and __SHM_PAD_BETWEEN_TIME_AND_SEGSZ to
describe the differences.
Tested for x86_64 and x86, and with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
bits/shm-pad.h.
* sysdeps/unix/sysv/linux/bits/shm.h: Include <bits/shm-pad.h>.
(shmatt_t): Define as __syscall_ulong_t.
(__SHM_PAD_TIME): New macro, depending on [__SHM_PAD_BEFORE_TIME]
and [__SHM_PAD_AFTER_TIME].
(struct shmid_ds): Define time fields using __SHM_PAD_TIME.
Define shm_segsz and associated padding based on
[__SHM_SEGSZ_AFTER_TIME] and [__SHM_PAD_BETWEEN_TIME_AND_SEGSZ].
Use __syscall_ulong_t instead of unsigned long int.
[__USE_MISC] (struct shminfo): Use __syscall_ulong_t instead of
unsigned long int.
[__USE_MISC] (struct shm_info): Likewise.
* sysdeps/unix/sysv/linux/bits/shm-pad.h: New file.
* sysdeps/unix/sysv/linux/hppa/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/x86/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/shm.h: Remove.
* sysdeps/unix/sysv/linux/mips/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/x86/bits/shm.h: Likewise.
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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.
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The bits/sem.h headers for architectures using the Linux kernel vary
in a few ways:
* x32 uses __syscall_ulong_t instead of unsigned long int.
* The x86 header uses padding after time fields unconditionally
(including for both x86_64 ABIs), not just for 32-bit time (unlike
in msqid_ds where there is only padding for 32-bit time). Because
this padding is present for x32, and is __syscall_ulong_t there, it
does have to be __syscall_ulong_t, not unsigned long int.
* The MIPS header never uses padding around time fields, even when
32-bit (unlike in msqid_ds where it has endian-dependent padding for
32-bit time).
* Some older 32-bit big-endian architectures have padding before
rather than after time fields, although the preferred generic
approach is padding after the time fields independent of endianness.
(There are also insubstantial differences such as use of unsigned int
for padding instead of unsigned long int, which makes no difference to
layout since the padding fields using unsigned int are only present on
32-bit architectures.)
For the first, __syscall_ulong_t can be used in the generic version as
it's the same as unsigned long int everywhere except x32. For the
other differences, this patch adds macros __SEM_PAD_BEFORE_TIME and
__SEM_PAD_AFTER_TIME in a new bits/sem-pad.h header, so that header is
the only one needing to be provided on architectures with differences
in this area, and everything else can go in a single common bits/sem.h
header.
Tested for x86_64 and x86, and with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
bits/sem-pad.h.
* sysdeps/unix/sysv/linux/bits/sem.h: Include <bits/sem-pad.h>
instead of <bits/wordsize.h>.
(__SEM_PAD_TIME): New macro, depending on [__SEM_PAD_BEFORE_TIME]
and [__SEM_PAD_AFTER_TIME].
(struct semid_ds): Define time fields using __SEM_PAD_TIME. Use
__syscall_ulong_t instead of unsigned long int.
* sysdeps/unix/sysv/linux/bits/sem-pad.h: New file.
* sysdeps/unix/sysv/linux/hppa/bits/sem-pad.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/sem-pad.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/sem-pad.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/sem-pad.h: Likewise.
* sysdeps/unix/sysv/linux/x86/bits/sem-pad.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/sem.h: Remove.
* sysdeps/unix/sysv/linux/mips/bits/sem.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/sem.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/sem.h: Likewise.
* sysdeps/unix/sysv/linux/x86/bits/sem.h: Likewise.
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The bits/msq.h headers for architectures using the Linux kernel vary
in a few ways:
* x32 uses __syscall_ulong_t instead of unsigned long int.
* x32 has 64-bit time_t, so no padding around time fields despite
__WORDSIZE == 32.
* Some older 32-bit big-endian architectures have padding before
rather than after time fields, although the preferred generic
approach is padding after the time fields independent of endianness.
(There are also insubstantial differences such as use of unsigned int
for padding instead of unsigned long int, which makes no difference to
layout since the padding fields using unsigned int are only present on
32-bit architectures.)
For the first, __syscall_ulong_t can be used in the generic version as
it's the same as unsigned long int everywhere except x32. For the
other two differences, this patch adds macros __MSQ_PAD_BEFORE_TIME
and __MSQ_PAD_AFTER_TIME in a new bits/msq-pad.h header, so that
header is the only one needing to be provided on architectures with
differences in this area, and everything else can go in a single
common bits/msq.h header. Once we have __TIMESIZE, the generic
bits/msq-pad.h can change to use that instead of __WORDSIZE, at which
point the x86 version of bits/msq-pad.h won't be needed either.
Tested for x86_64 and x86, and with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
bits/msq-pad.h.
* sysdeps/unix/sysv/linux/bits/msq.h: Include <bits/msq-pad.h>
instead of <bits/wordsize.h>.
(msgqnum_t): Define as __syscall_ulong_t.
(msglen_t): Likewise.
(__MSQ_PAD_TIME): New macro, depending on [__MSQ_PAD_BEFORE_TIME]
and [__MSQ_PAD_AFTER_TIME].
(struct msqid_ds): Define time fields using __MSQ_PAD_TIME. Use
__syscall_ulong_t instead of unsigned long int.
* sysdeps/unix/sysv/linux/bits/msq-pad.h: New file.
* sysdeps/unix/sysv/linux/hppa/bits/msq-pad.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/msq-pad.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/msq-pad.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/msq-pad.h: Likewise.
* sysdeps/unix/sysv/linux/x86/bits/msq-pad.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/msq.h: Remove.
* sysdeps/unix/sysv/linux/mips/bits/msq.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/msq.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/msq.h: Likewise.
* sysdeps/unix/sysv/linux/x86/bits/msq.h: Likewise.
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sysdeps/unix/sysv/linux/bits/shm.h has padding after time fields in
struct shmid_ds unconditionally, and thus is only suitable for 32-bit
architectures (no 64-bit configurations use this file);
sysdeps/unix/sysv/linux/generic/bits/shm.h is substantively the same,
except that the padding is conditioned on __WORDSIZE == 32, and so it
can be used for 64-bit architectures as well.
This patch adds the conditionals to
sysdeps/unix/sysv/linux/bits/shm.h. The linux/generic/ version is
then no longer needed and so is removed, as are the alpha and s390
versions which are also no longer needed. The other
architecture-specific versions have different padding, layout, types
or SHMLBA definitions and so are still needed after this change.
This is essentially the same change for bits/shm.h as the bits/msq.h
patch and the bits/sem.h patch. However, the details of the padding
variations for the architectures that aren't changed are not all the
same between msqid_ds, shmid_ds and semid_ds.
Tested with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/bits/shm.h: Include <bits/wordsize.h>.
(struct shmid_ds): Condition padding after time fields on
[__WORDSIZE == 32].
* sysdeps/unix/sysv/linux/alpha/bits/shm.h: Remove file.
* sysdeps/unix/sysv/linux/generic/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/shm.h: Likewise.
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sysdeps/unix/sysv/linux/bits/sem.h has padding after time fields in
struct semid_ds unconditionally, and thus is only suitable for 32-bit
architectures (no 64-bit configurations use this file);
sysdeps/unix/sysv/linux/generic/bits/sem.h is substantively the same,
except that the padding is conditioned on __WORDSIZE == 32, and so it
can be used for 64-bit architectures as well.
This patch adds the conditionals to
sysdeps/unix/sysv/linux/bits/sem.h. The linux/generic/ version is
then no longer needed and so is removed, as are the alpha, ia64 and
s390 versions which are also no longer needed. The other
architecture-specific versions have different padding or types and so
are still needed after this change.
This is essentially the same change for bits/sem.h as the bits/msq.h
patch. However, the details of the padding variations for the
architectures that aren't changed are not all the same between
msqid_ds and semid_ds.
Tested with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/bits/sem.h: Include <bits/wordsize.h>.
(struct semid_ds): Condition padding after time fields on
[__WORDSIZE == 32].
* sysdeps/unix/sysv/linux/alpha/bits/sem.h: Remove file.
* sysdeps/unix/sysv/linux/generic/bits/sem.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/sem.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/sem.h: Likewise.
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sysdeps/unix/sysv/linux/bits/msq.h has padding after time fields in
struct msqid_ds unconditionally, and thus is only suitable for 32-bit
architectures (no 64-bit configurations use this file);
sysdeps/unix/sysv/linux/generic/bits/msq.h is substantively the same,
except that the padding is conditioned on __WORDSIZE == 32, and so it
can be used for 64-bit architectures as well.
This patch adds the conditionals to
sysdeps/unix/sysv/linux/bits/msq.h. The linux/generic/ version is
then no longer needed and so is removed, as are the alpha, ia64 and
s390 versions which are also no longer needed. The other
architecture-specific versions have different padding or types and so
are still needed after this change.
Tested with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/bits/msq.h: Include <bits/wordsize.h>.
(struct msqid_ds): Condition padding after time fields on
[__WORDSIZE == 32].
* sysdeps/unix/sysv/linux/alpha/bits/msq.h: Remove file.
* sysdeps/unix/sysv/linux/generic/bits/msq.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/msq.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/msq.h: Likewise.
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The MREMAP_* flags are identical between bits/mman-linux.h and the
hppa bits/mman.h; thus, they should be in bits/mman-shared.h instead
to avoid unnecessary duplication. This patch moves them there.
Tested for x86_64, and with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/bits/mman-linux.h [__USE_GNU]
(MREMAP_MAYMOVE): Do not define here.
[__USE_GNU] (MREMAP_FIXED): Likewise.
* sysdeps/unix/sysv/linux/bits/mman-shared.h [__USE_GNU]
(MREMAP_MAYMOVE): Define here instead.
[__USE_GNU] (MREMAP_FIXED): Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_GNU]
(MREMAP_MAYMOVE): Remove.
[__USE_GNU] (MREMAP_FIXED): Likewise.
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Continuing bits/mman.h unification between architectures using the
Linux kernel, this patch arranges for the common set of MAP_* flags to
be used by two more architectures. That common set is moved to
bits/mman-map-flags-generic.h, which is included by bits/mman.h, to
allow architectures to use that common set even if they also have
architecture-specific additions to it. As well as the generic
bits/mman.h, the versions for x86 and ia64 are also then made to
include bits/mman-map-flags-generic.h, so while they still need
architecture-specific bits/mman.h (for MAP_32BIT and MAP_GROWSUP
respectively), they do not need to duplicate the generic flag
definitions in there.
Tested for x86_64 and x86, and with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/bits/mman-map-flags-generic.h: New
file. Most contents moved from ....
* sysdeps/unix/sysv/linux/bits/mman.h: ... here. Move contents to
and include <bits/mman-map-flags-generic.h>.
* sysdeps/unix/sysv/linux/Makefile [$(subdir) = misc]
(sysdep_headers): Add bits/mman-map-flags-generic.h.
* sysdeps/unix/sysv/linux/ia64/bits/mman.h: Include
<bits/mman-map-flags-generic.h>.
[__USE_MISC] (MAP_GROWSUP): Only define this macro, not other
macros defined in <bits/mman-map-flags-generic.h>.
* sysdeps/unix/sysv/linux/x86/bits/mman.h: Include
<bits/mman-map-flags-generic.h>.
[__USE_MISC] (MAP_32BIT): Only define this macro, not other macros
defined in <bits/mman-map-flags-generic.h>.
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This patch completes the process of unifying sys/procfs.h headers for
architectures using the Linux kernel by making alpha use the generic
version.
That was previously deferred because alpha has different definitions
of prgregset_t and prfpregset_t from other architectures, so changing
to the common definitions would change C++ name mangling. To avoid
such a change, a header bits/procfs-prregset.h is added, and alpha
gets its own version of that header.
Tested for x86_64 and x86, and with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/sys/procfs.h: Include
<bits/procfs-prregset.h>.
(prgregset_t): Define using __prgregset_t.
(prfpregset_t): Define using __prfpregset_t.
* sysdeps/unix/sysv/linux/Makefile [$(subdir) = misc]
(sysdep_headers): Add bits/procfs-prregset.h.
* sysdeps/unix/sysv/linux/bits/procfs-prregset.h: New file.
* sysdeps/unix/sysv/linux/alpha/bits/procfs-prregset.h: Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/alpha/sys/procfs.h: Remove file.
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This patch continues the process of unifying sys/procfs.h headers for
architectures using the Linux kernel.
A bits/procfs-id.h header is added to define __pr_uid_t and __pr_gid_t
for the types of pr_uid and pr_gid; the default version of this header
uses unsigned int. On some architectures, sys/procfs.h has copies of
32-bit structures for 64-bit builds; those move into a
bits/procfs-extra.h header (they can't go in bits/procfs.h because
they have to come *after* other declarations from sys/procfs.h).
Given appropriate versions of these headers, six more architectures
can then move to providing only bits/procfs*.h without duplicating the
rest of the contents of sys/procfs.h. Only alpha needs a further
bits/ header to be added before it can stop having its own
sys/procfs.h.
Tested for x86_64 and x86, and with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/sys/procfs.h: Include
<bits/procfs-id.h> and <bits/procfs-extra.h>.
(struct elf_prpsinfo): Use __pr_uid_t and __pr_gid_t as types of
pr_uid and pr_gid.
* sysdeps/unix/sysv/linux/Makefile [$(subdir) = misc]
(sysdep_headers): Add bits/procfs-id.h and bits/procfs-extra.h.
* sysdeps/unix/sysv/linux/bits/procfs-extra.h: New file.
* sysdeps/unix/sysv/linux/bits/procfs-id.h: Likewise.
* sysdeps/unix/sysv/linux/arm/bits/procfs-id.h: Likewise.
* sysdeps/unix/sysv/linux/arm/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/m68k/bits/procfs-id.h: Likewise.
* sysdeps/unix/sysv/linux/m68k/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/procfs-extra.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/procfs-id.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/sh/bits/procfs-id.h: Likewise.
* sysdeps/unix/sysv/linux/sh/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/procfs-extra.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/procfs-id.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/x86/bits/procfs-id.h: Likewise.
* sysdeps/unix/sysv/linux/x86/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/arm/sys/procfs.h: Remove file.
* sysdeps/unix/sysv/linux/m68k/sys/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/s390/sys/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/sh/sys/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sys/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/x86/sys/procfs.h: Likewise.
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As per recent discussions, this patch unifies some of the sys/procfs.h
headers for architectures using the Linux kernel, producing a generic
version that can hopefully be used by all new architectures as well.
The new generic version is based on the AArch64 one. The register
definitions, the only part that generally needs to vary by
architecture, go in a new bits/procfs.h header (which each
architecture using the generic version needs to provide); that header
also has any #includes that were in the architecture-specific
sys/procfs.h, where those includes went beyond the generic set.
The generic version is used for eight architectures where the generic
definitions were the same as the architecture-specific ones. (Some of
those architectures had #if 0 fields, now removed; some defined types
or fields using different type names which were typedefs for the same
underlying types.)
Six of the remaining architectures with their own sys/procfs.h use
unsigned short for pr_uid / pr_gid in some cases; moving those to the
generic header will require a bits/ header to define a typedef for the
type of those fields. In the case of alpha, the generic sys/procfs.h
uses elf_gregset_t (= unsigned long int[33]) to define prgregset_t and
elf_fpregset_t (= double[32]) to define prfpregset_t, but the alpha
version uses gregset_t (= long int[33]) and fpregset_t (= long
int[32]), so avoiding unnecessarily changing the underlying types (and
thus C++ name mangling) again means a bits/ header will need to be
able to define a different choice for those typedefs.
bits/procfs.h is included outside the __BEGIN_DECLS / __END_DECLS pair
(whereas the definitions it contains were previously inside that pair
in various sys/procfs.h headers), because it sometimes includes other
headers and putting those other #includes inside that pair seems
risky. Because none of the declarations in bits/procfs.h are of
functions or variables or involve function types, I don't think it
makes any difference whether they are inside or outside an extern "C"
context.
Tested with build-many-glibcs.py (again, that does not provide much
validation for the correctness of this patch).
* sysdeps/unix/sysv/linux/sys/procfs.h: Replace with file based on
AArch64 version. Include <bits/procfs.h>.
* sysdeps/unix/sysv/linux/Makefile [$(subdir) = misc]
(sysdep_headers): Add bits/procfs.h.
* sysdeps/unix/sysv/linux/bits/procfs.h: New file.
* sysdeps/unix/sysv/linux/aarch64/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/microblaze/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/nios2/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/aarch64/sys/procfs.h: Remove file.
* sysdeps/unix/sysv/linux/hppa/sys/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/sys/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/microblaze/sys/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/mips/sys/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/nios2/sys/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/sys/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/sys/procfs.h: Likewise.
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Many bits/mman.h headers for Linux architectures have exactly the same
contents, up to whitespace, comments and the number of leading 0s on
constants. Specifically, this applies to architectures that, in the
Linux kernel, either have no uapi/asm/mman.h, or have one that
includes asm-generic/mman.h without any changes or additions relevant
to glibc (this last case is the one that applies to Arm).
It's not useful to have to duplicate the set of MAP_* constants in
glibc for all such architectures and any new architectures with that
property. Thus, this patch creates a generic
sysdeps/unix/sysv/linux/bits/mman.h and removes all the
architecture-specific versions that become unnecessary.
Further unification remains possible after this patch. For example,
the new bits/mman.h could become bits/mman-map-flags-generic.h so that
it could also be used by architecture-specific bits/mman.h headers on
architectures that use the generic flags but add architecture-specific
ones to them. That would allow this common set of MAP_* definitions
to be used on ia64 and x86 as well (architectures that include
asm-generic/mman.h from their own uapi/asm/mman.h but define
additional MAP_* values of their own).
Tested with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/bits/mman.h: New file.
* sysdeps/unix/sysv/linux/aarch64/bits/mman.h: Remove.
* sysdeps/unix/sysv/linux/arm/bits/mman.h: Likewise.
* sysdeps/unix/sysv/linux/m68k/bits/mman.h: Likewise.
* sysdeps/unix/sysv/linux/microblaze/bits/mman.h: Likewise.
* sysdeps/unix/sysv/linux/nios2/bits/mman.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/bits/mman.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/mman.h: Likewise.
* sysdeps/unix/sysv/linux/sh/bits/mman.h: Likewise.
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As of Linux 4.17, siginfo headers in the Linux kernel have been
largely unified across architectures (so various constants are defined
with common values in include/uapi/asm-generic/siginfo.h even if not
all architectures can generate those particular constants).
This patch makes glibc reflect that unification and the current set of
constants in that header as of Linux 4.18. Various constants are
added to bits/siginfo-consts.h (under the same feature test macro
conditions as the other constants with the same prefix), and removed
from the ia64 bits/siginfo-consts-arch.h where they were previously
there - this is not limited to constants added by the unification.
Nothing is done about macros that are defined in
include/uapi/asm-generic/siginfo.h with names with leading '__' (some
of those are ia64-specific ones that remain in the ia64
bits/siginfo-consts-arch.h without the leading '__' there).
A consequence of these changes is that TRAP_HWBKPT becomes available
on AArch64 and all other architectures as requested in bug 21286.
Tested for x86_64; tested with build-many-glibcs.py for ia64.
[BZ #21286]
* sysdeps/unix/sysv/linux/bits/siginfo-consts.h (SI_DETHREAD): New
constant.
[__USE_XOPEN_EXTENDED || __USE_XOPEN2K8] (ILL_BADIADDR): Likewise.
[__USE_XOPEN_EXTENDED || __USE_XOPEN2K8] (FPE_FLTUNK): Likewise.
[__USE_XOPEN_EXTENDED || __USE_XOPEN2K8] (FPE_CONDTRAP): Likewise.
[__USE_XOPEN_EXTENDED || __USE_XOPEN2K8] (SEGV_ACCADI): Likewise.
[__USE_XOPEN_EXTENDED || __USE_XOPEN2K8] (SEGV_ADIDERR): Likewise.
[__USE_XOPEN_EXTENDED || __USE_XOPEN2K8] (SEGV_ADIPERR): Likewise.
[__USE_XOPEN_EXTENDED] (TRAP_BRANCH): Likewise.
[__USE_XOPEN_EXTENDED] (TRAP_HWBKPT): Likewise.
[__USE_XOPEN_EXTENDED] (TRAP_UNK): Likweise.
* sysdeps/unix/sysv/linux/ia64/bits/siginfo-consts-arch.h
(ILL_BADIADDR): Remove constant.
(TRAP_BRANCH): Likewise.
(TRAP_HWBKPT): Likewise.
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This patch adds the PF_XDP, AF_XDP and SOL_XDP macros from Linux 4.18 to
sysdeps/unix/sysv/linux/bits/socket.h.
* sysdeps/unix/sysv/linux/bits/socket.h (PF_MAX): Set to 45.
(PF_XDP): New macro.
(AF_XDP): New macro.
(SOL_XDP): New macro.
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Linux 4.17 adds a SHM_STAT_ANY constant (ipcs command). This patch
adds it to the relevant bits/shm.h headers.
Tested for x86_64.
* sysdeps/unix/sysv/linux/alpha/bits/shm.h [__USE_MISC]
(SHM_STAT_ANY): New macro.
* sysdeps/unix/sysv/linux/arm/bits/shm.h [__USE_MISC]
(SHM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/bits/shm.h [__USE_MISC]
(SHM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/generic/bits/shm.h [__USE_MISC]
(SHM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/shm.h [__USE_MISC]
(SHM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/shm.h [__USE_MISC]
(SHM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/mips/bits/shm.h [__USE_MISC]
(SHM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/shm.h [__USE_MISC]
(SHM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/s390/bits/shm.h [__USE_MISC]
(SHM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/sh/bits/shm.h [__USE_MISC]
(SHM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/shm.h [__USE_MISC]
(SHM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/x86/bits/shm.h [__USE_MISC]
(SHM_STAT_ANY): Likewise.
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Linux 4.17 adds a SEM_STAT_ANY constant (ipcs command). This patch
adds it to the relevant bits/sem.h headers.
Tested for x86_64.
* sysdeps/unix/sysv/linux/alpha/bits/sem.h [__USE_MISC]
(SEM_STAT_ANY): New macro.
* sysdeps/unix/sysv/linux/bits/sem.h [__USE_MISC]
(SEM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/generic/bits/sem.h [__USE_MISC]
(SEM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/sem.h [__USE_MISC]
(SEM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/sem.h [__USE_MISC]
(SEM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/mips/bits/sem.h [__USE_MISC]
(SEM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/sem.h [__USE_MISC]
(SEM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/s390/bits/sem.h [__USE_MISC]
(SEM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/sem.h [__USE_MISC]
(SEM_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/x86/bits/sem.h [__USE_MISC]
(SEM_STAT_ANY): Likewise.
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Linux 4.17 adds a MSG_STAT_ANY constant (ipcs command). This patch
adds it to the relevant bits/msq.h headers.
Tested for x86_64.
* sysdeps/unix/sysv/linux/alpha/bits/msq.h [__USE_MISC]
(MSG_STAT_ANY): New macro.
* sysdeps/unix/sysv/linux/bits/msq.h [__USE_MISC]
(MSG_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/generic/bits/msq.h [__USE_MISC]
(MSG_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/msq.h [__USE_MISC]
(MSG_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/msq.h [__USE_MISC]
(MSG_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/mips/bits/msq.h [__USE_MISC]
(MSG_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/msq.h [__USE_MISC]
(MSG_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/s390/bits/msq.h [__USE_MISC]
(MSG_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/msq.h [__USE_MISC]
(MSG_STAT_ANY): Likewise.
* sysdeps/unix/sysv/linux/x86/bits/msq.h [__USE_MISC]
(MSG_STAT_ANY): Likewise.
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This patch adds the PTRACE_SECCOMP_GET_METADATA constant from Linux
4.16 to all relevant sys/ptrace.h files. A type struct
__ptrace_seccomp_metadata, analogous to other such types, is also
added.
Tested for x86_64, and with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/sys/ptrace.h
(PTRACE_SECCOMP_GET_METADATA): New enum value and macro.
* sysdeps/unix/sysv/linux/bits/ptrace-shared.h
(struct __ptrace_seccomp_metadata): New type.
* sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h
(PTRACE_SECCOMP_GET_METADATA): Likewise.
* sysdeps/unix/sysv/linux/arm/sys/ptrace.h
(PTRACE_SECCOMP_GET_METADATA): Likewise.
* sysdeps/unix/sysv/linux/ia64/sys/ptrace.h
(PTRACE_SECCOMP_GET_METADATA): Likewise.
* sysdeps/unix/sysv/linux/powerpc/sys/ptrace.h
(PTRACE_SECCOMP_GET_METADATA): Likewise.
* sysdeps/unix/sysv/linux/s390/sys/ptrace.h
(PTRACE_SECCOMP_GET_METADATA): Likewise.
* sysdeps/unix/sysv/linux/sparc/sys/ptrace.h
(PTRACE_SECCOMP_GET_METADATA): Likewise.
* sysdeps/unix/sysv/linux/tile/sys/ptrace.h
(PTRACE_SECCOMP_GET_METADATA): Likewise.
* sysdeps/unix/sysv/linux/x86/sys/ptrace.h
(PTRACE_SECCOMP_GET_METADATA): Likewise.
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* bits/sched.h: Include <bits/types/struct_sched_param.h> and move struct
sched_param definition to it.
* sysdeps/unix/sysv/linux/bits/sched.h: Likewise.
* bits/types/struct_sched_param.h: New file.
* sysdeps/htl/bits/types/struct___pthread_attr.h: Include
<bits/types/struct_sched_param.h> instead of <sched.h>.
* posix/Makefile (headers): Add bits/types/struct_sched_param.h.
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This reverts commit 783c4820303fb6b031d401564f8089ecaf154b62 which
accidentaly flew out.
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Add RWF_APPEND to RWF_SUPPORTED to support Linux kernel 4.16.
[BZ #22947]
* bits/uio-ext.h (RWF_APPEND): New.
* sysdeps/unix/sysv/linux/bits/uio-ext.h (RWF_APPEND): Likewise.
* manual/llio.texi: Document RWF_APPEND.
* misc/tst-preadvwritev2-common.c (RWF_APPEND): New.
(RWF_SUPPORTED): Add RWF_APPEND.
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* bits/sigaction.h: Add include guard.
* sysdeps/unix/sysv/linux/alpha/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/tile/bits/sigaction.h: Likewise.
* hurd/hurd/signal.h: Include <bits/sigaction.h>.
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This patch defines _DIRENT_MATCHES_DIRENT64 to either 0 or 1 and adjust its
usage from checking its definition to its value.
Checked on a build for major Linux abis.
* bits/dirent.h (__INO_T_MATCHES_INO64_T): Define regardless whether
__INO_T_MATCHES_INO64_T is defined.
* sysdeps/unix/sysv/linux/bits/dirent.h: Likewise.
* dirent/alphasort.c: Check _DIRENT_MATCHES_DIRENT64 value instead
of definition.
* dirent/alphasort64.c: Likewise.
* dirent/scandir.c: Likewise.
* dirent/scandir64-tail.c: Likewise.
* dirent/scandir64.c: Likewise.
* dirent/scandirat.c: Likewise.
* dirent/scandirat64.c: Likewise.
* dirent/versionsort.c: Likewise.
* dirent/versionsort64.c: Likewise.
* include/dirent.h: Likewise.
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Nearly everything in _G_config.h is either junk or more appropriately
defined elsewhere:
* _G_fpos_t, _G_fpos64_t, and _G_BUFSIZ are already completely unused.
* All remaining uses of _G_va_list have been changed to __gnuc_va_list.
* The definition of _G_HAVE_ST_BLKSIZE/_IO_HAVE_ST_BLKSIZE has
been inlined into its sole use.
* The complete definition of _G_iconv_t has been moved to libio.h and
renamed _IO_iconv_t (all actual users used that name).
* _G_IO_IO_FILE_VERSION is vestigial; some code cares whether
_IO_stdin_used exists, but nothing looks at its value. I've
preserved the value as a hardwired constant in csu/init.c.
This means csu/init.c no longer needs to include anything.
* Many of the headers included by _G_config.h were already being
included directly by either either libio.h or stdio.h; the
remaining ones were moved to libio.h.
* _G_HAVE_MREMAP is still relevant, because mremap genuinely is a
Linux extension; it's not in POSIX and as far as I can tell it's
not available on the Hurd either. I also preserved _G_HAVE_MMAP,
since it's conceivable someone would want to port glibc to a
MMU-less, mmap-less environment in the future. Both are now always
defined to 1/0 as is the current convention, instead of the older
1/undef convention. These are the only symbols still defined in
_G_config.h.
* The actual inclusion of _G_config.h moves from libio.h to libioP.h,
as this is where a potential override of _G_HAVE_MMAP happens.
* The #ifdef logic in libioP.h controlling _IO_JUMPS_OFFSET has been
simplified.
After this patch, the only surviving _G_ symbols are the struct tag
names _G_fpos_t and _G_fpos64_t, which are preserved for the sake of
C++ mangled names in applications, and _G_HAVE_MMAP and _G_HAVE_MREMAP,
which do not seem worth renaming.
Installed stripped libraries are unchanged by this patch.
* bits/_G_config.h: Move back to sysdeps/generic/_G_config.h.
Delete all contents except for definitions of _G_HAVE_MMAP and
_G_HAVE_MREMAP. Add commentary explaining those two symbols.
* sysdeps/unix/sysv/linux/bits/_G_config.h: Move back to
sysdeps/unix/sysv/linux/_G_config.h. Make same content
change as above.
* libio/libio.h: Don't include bits/_G_config.h here.
Include stddef.h with __need_wchar_t defined. Include
bits/types/__mbstate_t.h, bits/types/wint_t.h, and gconv.h.
Define _IO_iconv_t here, directly.
Don't define _IO_HAVE_ST_BLKSIZE.
* libio/libioP.h: Include _G_config.h here. Move include of
shlib-compat.h up with rest of includes. Simplify conditionals
controlling definition of _IO_JUMPS_OFFSET.
* csu/init.c: Remove always-true #if around entire file.
Don't include stdio.h. Set _IO_stdin_used to hardwired
constant 0x20001, and update commentary.
* include/stdio.h, sysdeps/ieee754/ldbl-opt/nldbl-compat.h:
Replace all uses of _G_va_list with __gnuc_va_list.
* libio/filedoalloc.c: Use #if defined _STATBUF_ST_BLKSIZE
instead of #if _IO_HAVE_ST_BLKSIZE.
* libio/fileops.c: Test _G_HAVE_MREMAP with #if, not #ifdef.
* libio/iofdopen.c, libio/iofopen.c: Test _G_HAVE_MMAP with #if,
not #ifdef.
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We shipped 2.27 with libio.h and _G_config.h still installed but
issuing warnings when used. Let's stop installing them early in 2.28
so that we have plenty of time to think of another plan if there are
problems.
The public stdio.h had a genuine dependency on libio.h for the
complete definitions of FILE and cookie_io_functions_t, and a genuine
dependency on _G_config.h for the complete definitions of fpos_t and
fpos64_t; these are moved to single-type headers.
bits/types/struct_FILE.h also provides a handful of accessor and
bitflags macros so that code is not duplicated between bits/stdio.h
and libio.h. All the other _IO_ and _G_ names used by the public
stdio.h can be replaced with either public names or __-names.
In order to minimize the risk of breaking our own compatibility code,
bits/types/struct_FILE.h preserves the _IO_USE_OLD_IO_FILE mechanism
exactly as it was in libio.h, but you have to define _LIBC to use it,
or it'll error out. Similarly, _IO_lock_t_defined is preserved
exactly, but will error out if used without defining _LIBC.
Internally, include/stdio.h continues to include libio.h, and libio.h
scrupulously provides every _IO_* and _G_* name that it always did,
perhaps now defined in terms of the public names. This is how this
patch avoids touching dozens of files throughout glibc and becoming
entangled with the _IO_MTSAFE_IO mess. The remaining patches in this
series eliminate most of the _G_ names.
Tested on x86_64-linux; in addition to the test suite, I installed the
library in a sysroot and verified that a simple program that uses
stdio.h could be compiled against the installed library, and I also
verified that installed stripped libraries are unchanged.
* libio/bits/types/__fpos_t.h, libio/bits/types/__fpos64_t.h:
New single-type headers split from _G_config.h.
* libio/bits/types/cookie_io_functions_t.h
* libio/bits/types/struct_FILE.h
New single-type headers split from libio.h.
* libio/Makefile: Install the above new headers. Don't install
libio.h, _G_config.h, bits/libio.h, bits/_G_config.h, or
bits/libio-ldbl.h.
* libio/_G_config.h, libio/libio.h: Delete file.
* libio/bits/libio.h: Remove improper-inclusion guard.
Include stdio.h and don't repeat anything that it does.
Define _IO_fpos_t as __fpos_t, _IO_fpos64_t as __fpos64_t,
_IO_BUFSIZ as BUFSIZ, _IO_va_list as __gnuc_va_list,
__io_read_fn as cookie_read_function_t,
__io_write_fn as cookie_write_function_t,
__io_seek_fn as cookie_seek_function_t,
__io_close_fn as cookie_close_function_t,
and _IO_cookie_io_functions_t as cookie_io_functions_t.
Define _STDIO_USES_IOSTREAM, __HAVE_COLUMN, and _IO_file_flags
here, in the "compatibility defines" section. Remove an #if 0
block. Use the "body" macros from bits/types/struct_FILE.h to
define _IO_getc_unlocked, _IO_putc_unlocked, _IO_feof_unlocked,
and _IO_ferror_unlocked.
Move prototypes of __uflow and __overflow...
* libio/stdio.h: ...here. Don't include bits/libio.h.
Don't define _STDIO_USES_IOSTREAM. Get __gnuc_va_list
directly from stdarg.h. Include bits/types/__fpos_t.h,
bits/types/__fpos64_t.h, bits/types/struct_FILE.h,
and, when __USE_GNU, bits/types/cookie_io_functions_t.h.
Use __gnuc_va_list, not _G_va_list; __fpos_t, not _G_fpos_t;
__fpos64_t, not _G_fpos64_t; FILE, not struct _IO_FILE;
cookie_io_functions_t, not _IO_cookie_io_functions_t;
__ssize_t, not _IO_ssize_t. Unconditionally define
BUFSIZ as 8192 and EOF as (-1).
* libio/bits/stdio.h: Add multiple-include guard. Use the "body"
macros from bits/types/struct_FILE.h instead of _IO_* macros
from libio.h; use __gnuc_va_list instead of va_list and __ssize_t
instead of _IO_ssize_t.
* libio/bits/stdio2.h: Similarly.
* libio/iolibio.h: Add multiple-include guard.
Include bits/libio.h after stdio.h.
* libio/libioP.h: Add multiple-include guard.
Include stdio.h and bits/libio.h before iolibio.h.
* include/bits/types/__fpos_t.h, include/bits/types/__fpos64_t.h
* include/bits/types/cookie_io_functions_t.h
* include/bits/types/struct_FILE.h: New wrappers.
* bits/_G_config.h, sysdeps/unix/sysv/linux/_G_config.h:
Get definitions of _G_fpos_t and _G_fpos64_t from
bits/types/__fpos_t.h and bits/types/__fpos64_t.h
respectively. Remove improper-inclusion guards.
* conform/data/stdio.h-data: Update expectations of va_list.
* scripts/check-installed-headers.sh: Remove special case for
libio.h and _G_config.h.
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_key is not reserved name and we should avoid using that. It seems that
it was simple typo when pkey_* was implemented.
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This patch adds the IPV6_FREEBIND macro from Linux 4.15 to
sysdeps/unix/sysv/linux/bits/in.h.
Tested for x86_64.
* sysdeps/unix/sysv/linux/bits/in.h (IPV6_FREEBIND): New macro.
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This patch adds the MAP_SHARED_VALIDATE macro from Linux 4.15 to
bits/mman-linux.h and the hppa bits/mman.h.
Tested for x86_64.
* sysdeps/unix/sysv/linux/bits/mman-linux.h [__USE_MISC]
(MAP_SHARED_VALIDATE): New macro.
* sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_MISC]
(MAP_SHARED_VALIDATE): Likewise.
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* 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.
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Move a shared part of sys/ptrace.h which is the same on all
architectures to a separate file.
* sysdeps/unix/sysv/linux/sys/ptrace.h: Include <bits/ptrace-shared.h>.
(__ptrace_setoptions, __ptrace_eventcodes, __ptrace_peeksiginfo_args,
__ptrace_peeksiginfo_flags, ptrace): Move to ...
* sysdeps/unix/sysv/linux/bits/ptrace-shared.h: ... new file.
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
bits/ptrace-shared.h.
* sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h: Include
<bits/ptrace-shared.h>.
(__ptrace_setoptions, __ptrace_eventcodes, __ptrace_peeksiginfo_args,
__ptrace_peeksiginfo_flags, ptrace): Remove.
* sysdeps/unix/sysv/linux/ia64/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/s390/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sys/ptrace.h: Likewise.
* sysdeps/unix/sysv/linux/tile/sys/ptrace.h: Likewise.
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libio.h was originally the header for a set of supported GNU
extensions, but they have not been maintained as such in many years,
they are now standing in the way of improvements to stdio, and we
don't think there are any remaining external users. _G_config.h was
never intended for public use, but predates the bits convention.
Move both of these headers into the bits directory and provide stubs
at top level which issue deprecation warnings.
The contents of (bits/)libio.h and (bits/)_G_config.h are still
exposed to external software via stdio.h; changing that requires more
complex surgery than I have time to attempt right now.
* libio/libio.h, libio/_G_config.h: New stub headers which issue a
deprecation warning and then include <bits/libio.h>, <bits/_G_config.h>
respectively.
* libio/libio.h: Rename the original version of this file to
libio/bits/libio.h. Error out if not included by stdio.h or the
stub libio.h.
* include/libio.h: Move to include/bits. Forward to libio/bits/libio.h.
* sysdeps/generic/_G_config.h: Move to top-level bits/. Error out
if not included by bits/libio.h or the stub _G_config.h.
* sysdeps/unix/sysv/linux/_G_config.h: Move to
sysdeps/unix/sysv/linux/bits. Error out if not included by
bits/libio.h or the stub _G_config.h.
* libio/stdio.h: Include bits/libio.h, not libio.h.
* libio/Makefile: Install bits/libio.h and bits/_G_config.h as
well as libio.h and _G_config.h.
* csu/init.c, libio/fmemopen.c, libio/iolibio.h, libio/oldfmemopen.c
* libio/strfile.h, stdio-common/vfscanf.c
* sysdeps/pthread/flockfile.c, sysdeps/pthread/funlockfile.c
Include stdio.h, not _G_config.h nor libio.h.
* libio/iofgetpos.c: Also rename fgetpos64 out of the way.
* libio/iofsetpos.c: Also rename fsetpos64 out of the way.
* scripts/check-installed-headers.sh: Skip libio.h and _G_config.h.
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This adds system call wrappers for pkey_alloc, pkey_free, pkey_mprotect,
and x86-64 implementations of pkey_get and pkey_set, which abstract over
the PKRU CPU register and hide the actual number of memory protection
keys supported by the CPU. pkey_mprotect with a -1 key is implemented
using mprotect, so it will work even if the kernel does not support the
pkey_mprotect system call.
The system call wrapers use unsigned int instead of unsigned long for
parameters, so that no special treatment for x32 is needed. The flags
argument is currently unused, and the access rights bit mask is limited
to two bits by the current PKRU register layout anyway.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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Fallback using mlock is provided if the flags argument is zero.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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This header file enables sharing of portable declarations and
definitions across all Linux architectures, including hppa (which does
not use <bits/mman-linux.h>).
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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The system call is somewhat obscure because it is closely related
to file descriptor sealing. However, it is also the recommended
way to create alias mappings, which is why it has more general use.
No emulation is provided. Except for the name of the
/proc/self/fd links, it would be possible to implement an
approximation using O_TMPFILE and tmpfs, but this does not appear
to be worth the added complexity.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
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This patch adds the new MSG_ZEROCOPY constant from Linux 4.14 to the
Linux bits/socket.h.
Tested for x86_64.
* sysdeps/unix/sysv/linux/bits/socket.h (MSG_ZEROCOPY): New enum
constant and macro.
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This patch adds the new MADV_WIPEONFORK and MADV_KEEPONFORK from Linux
4.14 to bits/mman-linux.h (and bits/mman.h in the hppa case). Note
there are further hppa MADV_* changes in 4.14; I plan a separate glibc
patch for those.
Tested for x86_64.
* sysdeps/unix/sysv/linux/bits/mman-linux.h
[__USE_MISC] (MADV_WIPEONFORK): New macro.
[__USE_MISC] (MADV_KEEPONFORK): Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/mman.h
[__USE_MISC] (MADV_WIPEONFORK): Likewise.
[__USE_MISC] (MADV_KEEPONFORK): Likewise.
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The header file is no longer used on anything but Linux.
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* bits/uio-ext.h (RWF_HIPRI, RWF_DSYNC, RWF_SYNC, RWF_NOWAIT): New
defines.
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This patch adds new interfaces (F_GET_RW_HINT etc., and associated
RW[FH]_WRITE_LIFE_*) from Linux 4.13 to bits/fcntl-linux.h
(conditional on __USE_GNU).
Tested for x86_64.
* sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_GNU]
(F_GET_RW_HINT): New macro.
[__USE_GNU] (F_SET_RW_HINT): Likewise.
[__USE_GNU] (F_GET_FILE_RW_HINT): Likewise.
[__USE_GNU] (F_SET_FILE_RW_HINT): Likewise.
[__USE_GNU] (RWF_WRITE_LIFE_NOT_SET): Likewise.
[__USE_GNU] (RWH_WRITE_LIFE_NONE): Likewise.
[__USE_GNU] (RWH_WRITE_LIFE_SHORT): Likewise.
[__USE_GNU] (RWH_WRITE_LIFE_MEDIUM): Likewise.
[__USE_GNU] (RWH_WRITE_LIFE_LONG): Likewise.
[__USE_GNU] (RWH_WRITE_LIFE_EXTREME): Likewise.
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While reviewing Linux 4.13 for glibc header changes needed, I noticed
that bits/fcntl-linux.h was missing F_ADD_SEALS etc. from Linux 3.17.
I didn't find any discussion indicating this omission is deliberate.
Now, these interfaces can only be used with file descriptors created
with memfd_create, and we don't have a memfd_create wrapper in glibc
(a patch was submitted in October 2014, albeit without documentation /
tests, and discussions continued over the next few months, but without
consensus on whether to add the interface - and we still lack any
general consensus on syscall wrappers), but I don't think that's a
reason to exclude the constants from bits/fcntl-linux.h (especially as
the header does not look compatible with simultaneously including
linux/fcntl.h).
(Some of those 2014/2015 discussions raised concerns about difficulty
using the memfd_create / sealing interface, but those seem to me more
like a question of whether it should be part of the OS-independent GNU
API - in my view, even fairly specialized syscalls ought to have
wrappers added to glibc if not obsolescent, but there may be cases
where we only want to include them in the Linux-specific API and
anything in the OS-independent GNU API should be different - rather
than being relevant to whether constants for use with fcntl should
appear in headers.)
* sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_GNU]
(F_ADD_SEALS): New macro.
[__USE_GNU] (F_GET_SEALS): Likewise.
[__USE_GNU] (F_SEAL_SEAL): Likewise.
[__USE_GNU] (F_SEAL_SHRINK): Likewise.
[__USE_GNU] (F_SEAL_GROW): Likewise.
[__USE_GNU] (F_SEAL_WRITE): Likewise.
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This patch adds the new SOL_TLS constant from Linux 4.13 to the Linux
bits/socket.h.
Tested for x86_64.
* sysdeps/unix/sysv/linux/bits/socket.h (SOL_TLS): New macro.
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XPG4.2 defines the siginfo_t type, but not union sigval or its
contents (which were added in the 1993 edition of POSIX.1), resulting
in namespace violations for sigval, sival_int and sival_ptr for
signal.h and sys/wait.h for that standard because those headers
incorrectly expose those names in that case.
This patch fixes this problem. The public type in this case is union
sigval, but various places in the headers use the sigval_t name for
it; direct uses of union sigval are already properly guarded or in
headers not in XPG4.2. Now, sigval_t, although not a standard name,
does seem to be widely used outside glibc. The approach taken by this
patch is to make installed headers use the name __sigval_t instead.
__sigval_t is then defined to either union sigval or union __sigval
(where union __sigval has __-prefixed member names as well), depending
on whether there are any namespace issues with the union sigval name
and its members. In the case where union __sigval is used, sigval_t
is not defined at all, to avoid the problem of sigval_t having a C++
mangled name that depends on feature test macros. sigval_t is still
defined by signal.h if __USE_MISC (reflecting the nonstandard nature
of that name).
Tested for x86_64.
[BZ #21944]
* signal/bits/types/__sigval_t.h: New file.
* signal/Makefile (headers): Add bits/types/__sigval_t.h.
* signal/bits/types/sigval_t.h: Include <bits/types/__sigval_t.h>
and define sigval_t using __sigval_t.
* include/bits/types/__sigval_t.h: New file.
* bits/types/sigevent_t.h: Include <bits/types/__sigval_t.h>
instead of <bits/types/__sigval_t.h>.
(struct sigevent): Use __sigval_t instead of sigval_t.
* bits/types/siginfo_t.h: Include <bits/types/__sigval_t.h>
instead of <bits/types/__sigval_t.h>.
(siginfo_t): Use __sigval_t instead of sigval_t.
* sysdeps/unix/sysv/linux/bits/types/sigevent_t.h: Include
<bits/types/__sigval_t.h> instead of <bits/types/__sigval_t.h>.
(struct sigevent): Use __sigval_t instead of sigval_t.
* sysdeps/unix/sysv/linux/bits/types/siginfo_t.h: Include
<bits/types/__sigval_t.h> instead of <bits/types/__sigval_t.h>.
(siginfo_t): Use __sigval_t instead of sigval_t.
* signal/signal.h [__USE_MISC]: Include <bits/types/sigval_t.h>.
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For XPG4.2, sa_sigaction, SA_ONSTACK, SA_RESETHAND, SA_RESTART and
SA_NODEFER should be defined in signal.h, but they are only defined
for other standards at present.
This patch fixes the various bits/sigaction.h headers accordingly.
All the fixes are essentially the same, except those for SPARC and
Tile.
For SPARC, the header (a) spuriously defined various nonstandard
macros for __USE_UNIX98 || defined __USE_XOPEN2K8 and (b) defined some
standard macros as aliases of nonstandard ones instead of the other
way round. This patch fixes the SPARC header to handle these macros
the same way and with the same conditions as those for other
architectures, so the standard macros are the primary ones and the
other ones are defined only for __USE_MISC and are aliases of the
standard ones where applicable.
For Tile, the header spuriously defined the nonstandard macro
SA_NOPTRACE for __USE_UNIX98 || defined __USE_XOPEN2K8; this is moved
to __USE_MISC.
(Those nonstandard macros are in a reserved namespace, but it seems
desirable to be consistent between architectures as far as possible,
and so not define them in standard modes anywhere.)
Tested for x86_64, and with build-many-glibcs.py.
[BZ #21899]
* bits/sigaction.h (struct sigaction): Define sa_handler and
sa_sigaction using union also for [__USE_XOPEN_EXTENDED].
(SA_ONSTACK): Change [__USE_UNIX98] condition to
[__USE_XOPEN_EXTENDED].
(SA_RESTART): Likewise.
(SA_NODEFER): Likewise.
(SA_RESETHAND): Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/sigaction.h
(struct sigaction): Define sa_handler and sa_sigaction using union
also for [__USE_XOPEN_EXTENDED].
(SA_ONSTACK): Change [__USE_UNIX98] condition to
[__USE_XOPEN_EXTENDED].
(SA_RESTART): Likewise.
(SA_NODEFER): Likewise.
(SA_RESETHAND): Likewise.
* sysdeps/unix/sysv/linux/bits/sigaction.h
(struct sigaction): Define sa_handler and sa_sigaction using union
also for [__USE_XOPEN_EXTENDED].
(SA_ONSTACK): Change [__USE_UNIX98] condition to
[__USE_XOPEN_EXTENDED].
(SA_RESTART): Likewise.
(SA_NODEFER): Likewise.
(SA_RESETHAND): Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/sigaction.h
(struct sigaction): Define sa_handler and sa_sigaction using union
also for [__USE_XOPEN_EXTENDED].
(SA_ONSTACK): Change [__USE_UNIX98] condition to
[__USE_XOPEN_EXTENDED].
(SA_RESTART): Likewise.
(SA_NODEFER): Likewise.
(SA_RESETHAND): Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/sigaction.h
(struct sigaction): Define sa_handler and sa_sigaction using union
also for [__USE_XOPEN_EXTENDED].
(SA_ONSTACK): Change [__USE_UNIX98] condition to
[__USE_XOPEN_EXTENDED].
(SA_RESTART): Likewise.
(SA_NODEFER): Likewise.
(SA_RESETHAND): Likewise.
* sysdeps/unix/sysv/linux/mips/bits/sigaction.h
(struct sigaction): Define sa_handler and sa_sigaction using union
also for [__USE_XOPEN_EXTENDED].
(SA_ONSTACK): Change [__USE_UNIX98] condition to
[__USE_XOPEN_EXTENDED].
(SA_RESTART): Likewise.
(SA_NODEFER): Likewise.
(SA_RESETHAND): Likewise.
* sysdeps/unix/sysv/linux/s390/bits/sigaction.h
(struct sigaction): Define sa_handler and sa_sigaction using union
also for [__USE_XOPEN_EXTENDED].
(SA_ONSTACK): Change [__USE_UNIX98] condition to
[__USE_XOPEN_EXTENDED].
(SA_RESTART): Likewise.
(SA_NODEFER): Likewise.
(SA_RESETHAND): Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/sigaction.h
(struct sigaction): Define sa_handler and sa_sigaction using union
also for [__USE_XOPEN_EXTENDED].
(SA_ONSTACK): Change [__USE_UNIX98] condition to
[__USE_XOPEN_EXTENDED].
(SA_RESTART): Likewise.
(SA_NODEFER): Likewise. Define directly rather than as alias.
(SA_RESETHAND): Likewise.
(SA_INTERRUPT): Define only for [__USE_MISC].
(SA_NOMASK): Define as alias of SA_NODEFER, only for [__USE_MISC].
(SA_ONESHOT): Define as alias of SA_RESETHAND, only for
[__USE_MISC].
(SA_STACK): Define only for [__USE_MISC].
* sysdeps/unix/sysv/linux/tile/bits/sigaction.h
(struct sigaction): Define sa_handler and sa_sigaction using union
also for [__USE_XOPEN_EXTENDED].
(SA_ONSTACK): Change [__USE_UNIX98] condition to
[__USE_XOPEN_EXTENDED].
(SA_RESTART): Likewise.
(SA_NODEFER): Likewise.
(SA_RESETHAND): Likewise.
(SA_NOPTRACE): Define only for [__USE_MISC].
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