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This is sometimes needed for testing stdio streams, where the
setvbuf call in the test driver could interfere with the test.
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Remove extend_alloca usage. Also adjusts the internal function get_uid.
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If the caller-supplied buffer is not large enough, fall back directly
malloc.
The previous __libc_use_alloca check was incorrect because it did not
take into account that extend_alloca may fail to merge allocations, so
it would underestimate the stack space being used by roughly a factor
of two.
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The pre-allocation of the three scratch buffers increased the initial
stack size somewhat, but if retries are needed, the previous version
used more stack space if extend_alloca could not merge allocations.
Lack of alloca accounting also means could be problematic with
extremely large NSS responses, too.
[BZ #18023]
* nscd/aicache.c (addhstaiX): Use struct scratch_buffer instead
of extend_alloca.
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This replaces the ERANGE retry loops with loops which have heap
fallback. Heap allocation might actually be required for extremely
large NSS results.
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This introduces a separate function, read_cmdline, which reads the
contents of /proc/self/cmdline into a heap-allocated buffer.
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Kashubian language is not supported by CLDR, data copied from Wikipedia
and documents released by RJK (official Kashubian Language Council),
also consulted with a native speaker.
Note that this language also needs ab_alt_mon feature due to the month
May: nominative "môj", genitive "maja"; abbreviated nominative "môj",
abbreviated genitive "maj".
[BZ #23140]
* localedata/locales/csb_PL (mon): Rename to...
(alt_mon): This.
(abmon): Rename to...
(ab_alt_mon): This.
(mon): Add with proper genitive forms, copy from Wikipedia.
(abmon): Likewise.
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Thank you Michal Ostrowski for the feedback.
[BZ #19485]
* localedata/locales/csb_PL (mon): Fix typos:
"łżëkwiôt" -> "łżëkwiat" (April); "lëpinc" -> "lëpińc" (July).
(yesstr): Add, value is "jo".
(nostr): Add, value is "nié".
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Commit 5e79e0292bfb03f40e43379fd92581ad8eae9cb8 broke m68k after
s_significand.c became available in the build directory. All m68k
implementations of log1p and significand were including s_significand.c
and stopped working after the inclusion of the the auto-generated file.
This patch reorganizes the implementation of log1p and significand for
m680x0 in order to avoid hitting this problem.
* sysdeps/m68k/m680x0/fpu/s_log1p.c: Set as the generic file for
all log1p and significand functions on m680x0.
* sysdeps/m68k/m680x0/fpu/s_log1pf.c: Include s_log1p.c instead
of s_significand.c..
* sysdeps/m68k/m680x0/fpu/s_log1pl.c: Likewise.
* sysdeps/m68k/m680x0/fpu/s_significandf.c: Likewise.
* sysdeps/m68k/m680x0/fpu/s_significandl.c: Likewise.
* sysdeps/m68k/m680x0/fpu/s_significand.c: Move all the code to
s_log1p.c and include it..
Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
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* elf/elf.h (R_NDS32_NONE): New define.
(R_NDS32_32_RELA): Likewise.
(R_NDS32_COPY): Likewise.
(R_NDS32_GLOB_DAT): Likewise.
(R_NDS32_JUMP_SLOT): Likewise.
(R_NDS32_RELATIVE): Likewise.
(R_NDS32_TLS_TPOFF): Likewise.
(R_NDS32_TLS_DESC): Likewise.
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The BPF ELF format has new relocation types R_BPF_64_64 and R_BPF_64_32.
The existing R_BPF_MAP_FD was an extension that never got implemented.
Remove it, because the constant conflicts with the official R_BPF_64_64.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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Previously, only the SSE2 rounding mode was set, so the assembler
implementations using 387 were not following the expecting rounding
mode.
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Building the testsuite with GCC mainline fails with
-Wstringop-overflow= errors in string/tst-cmp.c. These are for calls
to strncmp and strncasecmp with SIZE_MAX size argument. The tests are
deliberately using this size that would be dubious in normal code, so
this patch disables the warning for the calls in question.
Tested with build-many-glibcs.py for aarch64-linux-gnu.
* string/tst-cmp.c: Include <libc-diag.h>.
(strncmp_max): Disable -Wstringop-overflow= around call to
strncmp.
(strncasecmp_max): Disable -Wstringop-overflow= around call to
strncasecmp.
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Building the testsuite with GCC mainline fails with:
bug-strspn1.c: In function 'main':
bug-strspn1.c:14:3: error: right-hand operand of comma expression has no effect [-Werror=unused-value]
strspn (b++, "");
^~~~~~~~~~~~~~~~
and a similar error for bug-strpbrk1.c. I'm not sure what GCC change
introduced this, and the wording of the message is a bit off (in the
source it's not a comma expression, that must reflect GCC's IR). But
the warning is correct (strspn is a pure function, the call is
useless, and if there wasn't an argument with a side effect much older
GCC would have warned); the point of the test is to verify that the
side effect in an argument still occurs for this useless call that can
otherwise be optimized to an (unused) constant (testing for a bug
there once was in an old strspn macro). This patch duly arranges for
the warning to be disabled for this code.
Tested with build-many-glibcs.py for aarch64-linux-gnu.
* string/bug-strpbrk1.c: Include <libc-diag.h>.
(main): Disable -Wunused-value around call to strpbrk.
* string/bug-strspn1.c: Include <libc-diag.h>.
(main): Disable -Wunused-value around call to strspn.
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Add a new libm-alias-float128.h in order to provide the __*ieee128
aliases for the existing *f128 that do not have a globally exported
symbol.
* sysdeps/ieee754/ldbl-128ibm-compat/Versions: New file.
* sysdeps/ieee754/ldbl-128ibm-compat/libm-alias-float128.h: New file.
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Create a template for significand.
* math/Makefile (libm-calls): Move s_significandF to...
(gen-libm-calls): ... here.
* math/s_significand_template.c: New file.
* math/s_significand.c: Removed.
* math/s_significandf.c: Removed.
* math/s_significandl.c: Removed.
* sysdeps/ieee754/ldbl-opt/s_significand.c: Removed.
* sysdeps/ieee754/ldbl-opt/s_significandl.c: Removed.
Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
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Move declare_mgen_finite_alias, declare_mgen_finite_alias_s and
declare_mgen_finite_alias_x to a shared place in order to reuse them in
other files that also declare _finite aliases.
* math/e_exp2_template.c (declare_mgen_finite_alias,
declare_mgen_finite_alias_s, declare_mgen_finite_alias_x): Move to...
* sysdeps/generic/math-type-macros.h (declare_mgen_finite_alias,
declare_mgen_finite_alias_s, declare_mgen_finite_alias_x): ... here.
Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
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If the candidate pointer is sufficiently far away from
__start___libc_IO_vtables, the result might not fit into ptrdiff_t.
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As reported in bug 23280, scanf functions produce incorrectly rounded
result for floating-point formats in FE_UPWARD and FE_DOWNWARD modes,
because they pass the input with sign removed to strtod functions, and
then negate the result if there was a '-' at the start of the input.
This patch fixes this by arranging for the sign to be passed to strtod
rather than scanf doing the negation itself. In turn, keeping the
sign around in the buffer being built up for strtod requires updating
places that examine char_buffer_size (&charbuf) to allow for the sign
being there as an extra character.
Tested for x86_64.
[BZ #23280]
* stdio-common/vfscanf.c (_IO_vfscanf_internal): Pass sign of
floating-point number to strtod functions rather than possibly
negating result of those functions.
* stdio-common/tst-scanf-round.c: New file.
* stdio-common/Makefile (tests): Add tst-scanf-round.
($(objpfx)tst-scanf-round): Depend on $(libm).
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* sysdeps/mach/hurd/i386/localplt.data: Drop empty line.
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* sysdeps/mach/hurd/localplt.data: Move to...
* sysdeps/mach/hurd/i386/localplt.data: new file. Add + REL
R_386_GLOB_DAT like on Linux i386.
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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 updates the hppa definition of MAP_TYPE to reflect a
corresponding change in the Linux kernel in 4.17 (so the value now has
four bits set, as it does on other architectures, although they are
different from other architectures because of hppa differences in
other MAP_* bits).
Tested with build-many-glibcs.py for hppa.
* sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_MISC]
(MAP_TYPE): Change value to 0x2b.
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My recent nan-sign tests fail to build for powerpc64le with GCC 8
because of the special compile / link options needed there for any
test using _Float128. This patch arranges for these tests to be
handled on powerpc64le similarly to other such tests.
Tested with build-many-glibcs.py for powerpc64le.
[BZ #23303]
* sysdeps/powerpc/powerpc64/le/Makefile
(CFLAGS-tst-strtod-nan-sign.c): Add -mfloat128.
(CFLAGS-tst-wcstod-nan-sign.c): Likewise.
(gnulib-tests): Also add $(f128-loader-link) for
tst-strtod-nan-sign abd tst-wcstod-nan-sign.
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* sysdeps/hurd/include/hurd/signal.h (_hurd_self_sigstate): Add hidden
prototype and definition.
* sysdeps/mach/hurd/i386/____longjmp_chk.S (____longjmp_chk): Use
hidden target for _hurd_self_sigstate.
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Rework 57e1651557e8 ("hurd: Avoid PLT ref for __pthread_get_cleanup_stack")
to keep the __pthread_get_cleanup_stack symbol.
* htl/pt-cleanup.c (__pthread_get_cleanup_stack): Rename to
___pthread_get_cleanup_stack.
(__pthread_get_cleanup_stack): Remove hidden def, add alias.
* htl/pt-exit.c (__pthread_exit): Use ___pthread_get_cleanup_stack
instead of __pthread_get_cleanup_stack.
* sysdeps/htl/pthread-functions.h [libpthread]
(__pthread_get_cleanup_stack): Remove hidden proto.
* sysdeps/htl/pthreadP.h (___pthread_get_cleanup_stack): Add
prototype.
* sysdeps/htl/pthreadP.h (___pthread_get_cleanup_stack): Add hidden
attribute.
* htl/pt-join.c (__pthread_get_cleanup_stack): Define to
___pthread_get_cleanup_stack.
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* sysdeps/mach/hurd/localplt.data (siglongjmp, longjmp,
__libc_lseek64, _IO_funlockfile): Whitelist PLT references.
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* mach/Makefile ($(mach-syscalls:%=$(objpfx))): Add hidden definition.
* sysdeps/mach/include/mach/mach_traps.h (__mach_reply_port,
__mach_thread_self, __mach_task_self, __mach_host_self, __swtch,
__swtch_pri, __thread_switch, __evc_wait): Add hidden prototypes.
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* sysdeps/mach/include/mach.h (__mach_msg): Add hidden prototype.
* mach/msg.c: Include <mach.h>.
(__mach_msg): Add hidden definition.
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* sysdeps/mach/include/mach-shortcuts-hidden.h: New file.
* mach/shortcut.awk: Make syscall stubs include
<mach-shortcuts-hidden.h> and add hidden definition.
* sysdeps/mach/include/mach.h: Include <mach-shortcuts-hidden.h>.
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* sysdeps/mach/hurd/localplt.data (ld.so): Make ref to __open optional.
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* htl/pt-cleanup.c (___pthread_get_cleanup_stack): Rename to
__pthread_get_cleanup_stack.
(__pthread_get_cleanup_stack): Remove alias, add hidden def.
* htl/pt-exit.c (__pthread_exit): Use __pthread_get_cleanup_stack
instead of ___pthread_get_cleanup_stack.
* sysdeps/htl/pthread-functions.h [libpthread]
(__pthread_get_cleanup_stack): Add hidden proto.
* sysdeps/htl/pthreadP.h (___pthread_get_cleanup_stack): Remove
prototype.
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* sysdeps/mach/hurd/lseek.c: Include <errno.h>.
* sysdeps/mach/hurd/lseek.c (__libc_lseek): Check that the value returned
by __lseek64 can fit off_t, return EOVERFLOW otherwise.
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* include/sys/sendfile.h (__sendfile64): Declare hidden prototype.
* sysdeps/mach/hurd/sendfile.c (sendfile): Call __sendfile64 instead
of sendfile.
* sysdeps/mach/hurd/sendfile64.c (sendfile64): Rename to __sendfile64.
(sendfile64): New strong alias.
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This patch adds tests for bug 23007, strtod ignoring any sign in the
input string in the case of a NaN result.
Tested for x86_64.
[BZ #23007]
* stdlib/tst-strtod-nan-sign-main.c: New file.
* stdlib/tst-strtod-nan-sign.c: Likewise.
* wcsmbs/tst-wcstod-nan-sign.c: Likewise.
* stdlib/Makefile (tests): Add tst-strtod-nan-sign.
($(objpfx)tst-strtod-nan-sign): Depend on $(libm).
* wcsmbs/Makefile (tests) Add tst-wcstod-nan-sign.
($(objpfx)tst-wcstod-nan-sign): Depend on $(libm).
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As reported in bug 23007, strtod ignores any sign in the input string
in the case of a NaN result. Thes patch fixes this.
Tested for x86_64 (in conjunction with tests to be added separately).
[BZ #23007]
* stdlib/strtod_l.c (____STRTOF_INTERNAL): Return NaN of
appropriate sign.
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Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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126b3ec370f0 ("hurd: Avoid PLTs for __mach_thread_self and
__mach_reply_port") made mach traps hidden, but htl actually uses two of
them. Re-expose them for now. Exposing them properly will be more involved
since their definition is generated.
* sysdeps/mach/include/mach/mach_traps.h (__mach_thread_self,
__mach_task_self): Remove attribute_hidden.
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With current GCC mainline, one strncat test involving a size close to
SIZE_MAX results in a -Wrestrict warning that that buffer size would
imply that the two buffers must overlap. This patch fixes the build
by adding disabling of -Wrestrict (for GCC versions supporting that
option) to the already-present disabling of -Wstringop-overflow= and
-Warray-bounds for this test.
Tested with build-many-glibcs.py that this restores the testsuite
build with GCC mainline for aarch64-linux-gnu.
* string/tester.c (test_strncat) [__GNUC_PREREQ (7, 0)]: Also
ignore -Wrestrict for one test.
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This patch uses an ifunc to implement gettimeofday in the shared libc.
This is faster compared to the vsyscall mechanism that has to check a
global pointer, demangle it and call it indirectly when the VDSO is
present. Resolving the gettimeofday symbol directly to the VDSO code
is safe because there are no failures that the libc has to handle by
setting errno like in a generic vsyscall (the only failure when the
VDSO code falls back to a syscall is EFAULT, but passing an invalid
pointer is undefined behaviour so returning -EFAULT is fine).
If the kernel supports the VDSO interface we use it for extern calls,
otherwise the old vsyscall method is used which falls back to a syscall.
The static version of gettimeofday continues to use a syscall, libc.so
internal calls use the old vsyscall method.
* sysdeps/unix/sysv/linux/aarch64/gettimeofday.c: New file.
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Commit b289cd9db8286fa6c670104dd5dfcfc68d5d00d6 (“Ignore absolute
symbols in ABI tests.”) broke “make update-all-abi” because an empty
list of files is now passed to scripts/update-abilist.sh.
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* sysdeps/mach/hurd/i386/____longjmp_chk.S (____longjmp_chk): Do not
use PLT to call _hurd_self_sigstate.
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* mach/mach/mach_traps.h (__mach_reply_port, __mach_thread_self,
__mach_task_self, __mach_host_self, __swtch, __swtch_pri,
__thread_switch, __evc_wait): Move declarations to...
* sysdeps/mach/include/mach/mach_traps.h: ... new file, and add
attribute_hidden.
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* sysdeps/hurd/include/hurd/port.h: New file.
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