if EINVAL or ENOMEM happened before the first getc_unlocked, it was
possible that the stream ori...

on some archs, linux support for futex operations (including
robust_list processing) that depend...

do_tzset() did't always reset the DST transition rules r0 and r1. That
means the rules from olde...

in order to produce FILE objects to pass to the intscan/floatscan
backends without any (prohibit...

POSIX allows ttyname(_r) and isatty to return EBADF if passed file
descriptor is invalid.

maint...

this significantly improves codegen in functions that need to access
errno but otherwise have no...

commit 5ce3737931bb411a8d167356d4d0287b53b0cbdc removed the inclusion
of libc.h from this file a...

there is no good reason to wait to find and process the plural rules
for a translated message fi...

in our memory model, all atomics are supposed to be full barriers;
stores are not release-only. ...

MAX_HANDLE_SZ is described in name_to_handle_at() to contain maximum
expected size for a file ha...

as originally published, the C99 syntax only allowed static index
parameter declarators when a g...

other compilers don't need this option, but gcc 3 and perhaps others
accept it despite not under...

since commit dc2f368e565c37728b0d620380b849c3a1ddd78f this has been
disabled by default, but was...

this further reduces the number of source files which need to include
libc.h and thereby be pote...

pthread_atfork.c does not actually include pthread_impl.h and has no
reason to, so it wasn't get...

the LFS64 macro was not self-documenting and barely saved any
characters. simply use weak_alias ...

this was added so that posix_spawn and possibly other functionality
could be implemented in term...

libc.h was intended to be a header for access to global libc state and
related interfaces, but e...

not all prefixed symbols can be made hidden. some are part of
ABI-compat (e.g. __nl_langinfo_l) ...

this is perhaps not the ideal place, but no better alternatives stand
out.

this is a special case that does not need a declaration, because it's
not even a libc-internal i...

the direct syscall or various thin and mostly-inline wrappers around
it are used instead interna...

the __-prefixed filename does not make sense when the only purpose of
this file is implementing ...

these were overlooked for various reasons in earlier stages.

these were overlooked in the declarations overhaul work because they
are not properly declared, ...

this makes significant differences to codegen on archs with an
expensive PLT-calling ABI; on i38...

commits leading up to this one have moved the vast majority of
libc-internal interface declarati...

the public flockfile interface is significantly heavier because it has
to handle the possibility...

it's not ideal, but the function is essentially an extended stdio
function specialized to getopt...

these are not public interfaces and do not match the public function,
but delegate argument chec...

previously, a common __posix_spawnx backend was used that accepted an
additional argument for th...

the malloc-implementation-private header is the only right place for
this, because, being in the...

this is not a public interface, and does not even necessarily match
the syscall on all archs tha...

these are not a public interface and are not intended to be callable
from anywhere but the publi...

this functions is glue for linking dependency logic.

it's already included in all places where these are needed, and aside
from __tls_get_addr, they'...

locale_impl.h could have been used, but this function is completely
independent of anything else...

this is a helper function from strftime that's also used by wcsftime.

unlike the other res/dn functions, this one is tied to struct
resolvconf which is not a public i...

obviously the type "should be" const, but it inherited non-const from
the standard nl_langinfo_l.

this function was added later for strftime use and the existence of
time_impl.h as the appropria...

the source file for this function is completely standalone, but it
doesn't seem worth adding a h...

despite looking like undefined behavior, the affected code is correct
both before and after this...

without this, it's plausible that assembler or linker could complain
about an unsatisfiable relo...

these exist for the sake of defining the corresponding weak public
aliases (for C11 and POSIX na...

get rid of a gratuitous translation unit and call frame between
asctime_r and the actual impleme...

logically these belong to the intersection of the stdio and pthread
subsystems, and either place...

eliminate gratuitous glue function for reporting the version, which
was probably leftover from t...

syscall.h was chosen as the header to declare it, since its intended
usage is alongside syscalls...

policy is that all public functions which have a public declaration
should be defined in a conte...

this cleans up what had become widespread direct inline use of "GNU C"
style attributes directly...

__pthread_mutex_timedlock is used to implement c11 mutex functions,
and therefore cannot call pt...

compiler cannot cache immutable fields of the mutex object across
external calls it can't see, m...

avoid gratuitously setting up and tearing down the robust list pending
slot.

this fix was intended to be amended in before release, but somehow got
missed.

This lets fexecve work even when /proc isn't mounted.

commit 4f35eb7591031a1e5ef9828f9304361f282f28b9 introduced this bug.
it is not present in any re...

this code in sigaction was the only place where sizeof was being
applied to the kernel sigaction...

Linux makes this surprisingly difficult, but it can be done. the trick
here is using the fact th...

assuming signals are blocked, which they are here, the tid in the
thread structure is always val...

this requirement is specified by POSIX.

these functions are specified to write to stderr but not set its
orientation, presumably so that...

if no output is produced, no underlying fwrite will ever be called,
but byte-oriented printf fun...

commit b5a8b28915aad17b6f49ccacd6d3fef3890844d1 setup the write buffer
bound pointers for the te...

commit 0b80a7b0404b6e49b0b724e3e3fe0ed5af3b08ef added the ability to
set application-provided st...

if __cp_cancel was reached via __syscall_cp, r12 will necessarily
still contain a GOT pointer (f...

entering the local entry point for __cancel from __cp_cancel is valid
if __cp_cancel was reached...

- REALTIME_SIGNALS is supposed to be version-valued
- DELAYTIMER_MAX was wrongly using the min a...

the value 0x7f00 (as if by _exit(127)) is specified only for the case
where the child is created...

fundamentally there is no good reason these functions need to set an
orientation (morally it sho...

the w+ mode is specified to "truncate the buffer contents". like most
of fmemopen, exactly what ...

this is a POSIX requirement.

also remove the gratuitous locking shenanigans and simply access f...