Merge the existing host_os block for the OS detection with the ABI
selection one, as these are related. This way we will be able to make
some of the latter checks conditional on the selected ABI.
On most systems the err family of functions is already present, but are
missing the errc family of functions, which are also present on some
other systems. Splitting them into separate files will make it easer to
conditionally include one or the other.
These contain the fixes to the error handling logic.
In NetBSD the manual page for strtou.3 is generated from the strtoi.3
manual page applying some substitutions, the problem is that the
cross-references are then lost. We will still keep them separate.
Reported-by: Alejandro Colomar <alx@kernel.org>
Some linkers require the map file definitions to contain only symbols
that are present on the linked object, either in the map file or in the
sym file we generate from the map file.
This is preparatory work to be able to conditionally include symbols
in the man and sym files depending on the ABI definitions.
The code is only making the name_from_id function conditional, and
assumes id_from_name are always to be included, so we need to match
the logic for the man page inclusion.
When referring to another manual page and their section number, we need
to use Xr instead of Fn, otherwise the section number is interpreted as
a function argument. For functions provided by libbsd itself we should
be using the 3bsd section instead of 3.
On macOS, closefrom() only sets the close-on-exec flag, so we cannot
check whether all file descriptors were closed, which means that if
on entry our file descriptor table was filled after the 4th file
descriptor, then we might fail the assertions for the flags for odd
file descriptors which we expect to be closed.
This can easily happen when running the test suite in parallel mode
with «make -j8 check» for example.
Closes: #23
The code is only getting the address, but we might be performing an
addressing that is out-of-bounds. Avoid it and use the address form
instead.
Warned-by: cppcheck (objectIndex)
When the system provides implementations for user_from_uid() or
group_from_gid() we are not using these variables, so better not declare
them.
Fixes: commit 21d12b0211
The <sys/*> headers tend to define things that might be used by other
headers, so while they should be self-contained, it is better to simply
include them first.
This was made conditional, but the code part was accidentally left
untouched due to having ported it locally to use __progname, which
caused build failures on the stock repo.
Fixes: commit 046621d7967e7a0f08ae988bcf7e4cd1b6cf204c
When generating the .sym export file from the .map file, we are not
stripping these comments that are part of the same line as the symbol,
which causes ld(1) implementations to error out. Moving them before
the symbols avoids the need to strip them, as we are only keeping
actual symbol lines.
Get the program name from the COMM field from the proc filesystem.
We could use instead the information from the psinfo binary file under
/proc, but that seems to have a shorter string limit.
Although the function is documented as possibly returning NULL if it
cannot find a known source of information, we should still at least
attempt to port it to any supported system, and otherwise explicitly
mark it as not implementable for such systems if that was to be the
case.
Some ld(1) implementations, such as the one on AIX, do not support using
/dev/null as the output filename for the compiled object.
Use an actual filename that we will then clean up.
This makes sure we include it when expected, alongside the man pages,
and the test cases, and do not accidentally break the ABI if the system
starts providing such interface.
This was placed here to make use of the same AS_CASE, but it does not
really fit with the section. Move it to the more appropriate place, and
detangle the AS_CASE.
We had several cases of code needing a strong alias, so we switch those
to use the new macro. This covers systems that support the alias
attribute and others such as macOS where we need to use assembler
directives to add the alias as the attribute is not supported.
