While looking at our exit() invocations I noticed that the mtd_probe
stuff uses 'exit(-1)' at various places, which is not really a good
idea, as exit codes of processes on Linux are supposed to be in the
range of 0…255.
This patch cleans that up a bit, and fixes a number of other things:
1. Let's always let main() exit, nothing intermediary. We generally
don't like code that invokes exit() on its own.
2. Close the file descriptors opened.
3. Some logging for errors is added, mostly on debug level.
Please review this with extra care. As I don't have the right hardware
to test this patch I only did superficial testing.
This makes it behave the same whether there is a blank line or not at
the end of the file. This is also consistent with the behavior of the
shell on a shell script that ends on a trailing backslash at the last
line.
Added tests to test_config_parse(), which only pass if the corresponding
change to config_parse() is included.
We can jump to chase_one from two places. In the first 'todo' is set to
'buffer', which comes from path_make_absolute_cwd() and is nonnull In the
second 'todo' is set to 'joined' which is checked to be nonull a few lines
above the jump. So let's kill the code that deals with null todo there.
CID #1390941.
This means that when those targets are built, all the sources are built again,
instead of reusing the work done to create libbasic.a and other convenience static
libraries. It would be nice to not do this, but there seems to be no support in
our toolchain for joining multiple static libraries into one. When linking
a static library, any -l arguments are simply ignored by ar/gcc-ar, and .a
libraries given as positional arguments are copied verbatim into the archive
so they objects in them cannot be accessed.
https://stackoverflow.com/questions/2157629/linking-static-libraries-to-other-static-libraries
suggests either unzipping all the archives and putting them back togather,
or using a linker script. Unzipping and zipping back together seems ugly.
The other option is not very nice. The linker script language does not
allow "+" to appear in the filenames, and filenames that meson generates
use that, so files would have to be renamed before a linker script was used.
And we would have to generate the linker script on the fly. Either way, this
doesn't seem attractive. Since those static libraries are a niche use case,
it seems reasonable to just go with the easiest and safest solution and
recompile all the source files. Thanks to ccache, this is probably almost as
cheap as actually reusing the convenience .a libraries.
test-libsystemd-sym.c and test-libudev-sym.c compile fine with the generated
static libs, so it seems that they indeed provide all the symbols they should.
Yu Watanabe
Joost Heitbrink
Lennart Poettering
Zbigniew Jędrzejewski-Szmek
David Tardon
Filipe Brandenburger
Davide Cavalca
Michael Biebl
Susant Sahani