Much like the existing in6addr_any global and the IN6ADDR_ANY_INIT
macro, our LibC is also expected to export the in6addr_loopback global
and the IN6ADDR_LOOPBACK_INIT constant.
These were found by the stress-ng port.
These POSIX APIs are defined as mapping directly to
`strrchr` and `strchr` respectively.
These are needed for the latest version of the stress-ng port,
and also give us better POSIX compliance.
These are aliases to `setjmp()` and `longjmp()` on our system,
as our implementations don't modify the signal mask.
This is required for the syzkaller executor process.
ISO C requires in section 7.2:
The assert macro is redefined according to the current state of NDEBUG
each time that <assert.h> is included.
Also add tests for `assert` multiple inclusion accordingly.
Most other syscalls pass address arguments as `void*` instead of
`uintptr_t`, so let's do that here too. Besides improving consistency,
this commit makes `strace` correctly pretty-print these arguments in
hex.
Add the `posix_madvise(..)` LibC implementation that just forwards
to the normal `madvise(..)` implementation.
Also define a few POSIX_MADV_DONTNEED and POSIX_MADV_NORMAL as they
are part of the POSIX API for `posix_madvise(..)`.
This is needed by the `fio` port.
This header defines various constants related to ethernet packets,
with ETH_ALEN being the length of an ethernet address (which is needed
by some ports).
We have close to zero usages of the C string functions in our codebase
(including the "safe" alternatives), so the deprecation warnings are
unlikely to have an actual effect on preventing large-scale use of the
"unsafe" functions.
Meanwhile, the deprecation warnings are causing issues for ports that
are compiled using -Werror by default, and are generally a large source
for logspam when compiling.
In order to reduce our reliance on __builtin_{ffs, clz, ctz, popcount},
this commit removes all calls to these functions and replaces them with
the equivalent functions in AK/BuiltinWrappers.h.
The actual value is unchanged, but the previous `0xffffffff` was an
unsigned value, which lead to clang getting mad at `foowc() == WEOF`.
This commit makes it a signed int on clang, which *should* serve
the same purpose and not lead to clang getting mad at us.
Both `AK/Assertions.h` and `assert.h` would define the macro if `NDEBUG`
is set.
Remove the definition from `assert.h` since it is not an ISO-C
requirement.
