provides a way for the build system to append -target and -isystem/-I
flags to a Run step.
needed by translate-c package to avoid doing naughty stuff in the
configure phase.
I had this idea to make b.dupe() also intern the strings since they will
be ultimately serialized to Configuration. Unfortunately the idea does
not work, because although a process-lived arena is used for the
string_bytes ArrayList of the Configuration.Wip, when the ArrayList is
resized, Allocator.free() memsets the freed memory to undefined, even
though it still technically lives due to being in a process-scoped
arena. So this commit will need to be partially reverted. However, I
kept it for posterity, and there are some more changes which I will now
note below.
- dupePaths: don't rewrite backslashes to forward slashes. backslashes
are valid in filenames on non-windows systems.
- always compile configurer in single-threaded mode
- use arena allocator for everything, no gpa for anything
- construct the Configuration.Wip instance earlier, so some stuff can be
prepopulated as desired.
- don't forget to flush
Number of generated files is recorded in serialized Configuration. Maker
preallocates array of generated files so that loads and stores can be
synchronization-free (protected by the dependency tree ordering).
More progress on Compile Step Zig CLI lowering.
The active contributors and maintainers of Zig's linker code have
generally found the current linker test harness to be cumbersome. The
tests require a lot of maintenance, but do not provide a lot of
coverage, and when they fail it is painful to troubleshoot.
Furthermore, as part of working on #31691, I don't want to port over the
CheckObject step, because I don't like the code anyway.
The plan forward is to start enhancing `zig objdump` to assist in
linker development, as well as using it as the basis for snapshot
testing.
We absolutely need linker test coverage, but we need to try to improve
these things about the next attempt:
* less effort to create and maintain tests
* less CPU overhead - we should be able to add a lot of tests without
adding a lot of CI time.
* more helpful failures. A failed linker test should provide the next
steps a developer can take to understand why the test failed.
* a goal of porting over all of LLD's test suite, or at least the good
ones.
I'm not going to open an issue to track the lost linker test coverage,
because there was already so much lack of coverage for linker stuff.
However I will open issues to track this lost coverage:
* the deleted checks from test/standalone/glibc_compat/build.zig
* the deleted checks from test/standalone/compiler_rt_panic/build.zig
* the deleted checks from test/standalone/ios/build.zig
Followup to #30769
I grepped for `try .*toOwnedSlice` and checked all of them by hand.
Fixes a bunch of memory leaks removes usages or `errdefer` and `vars` in some places. I also switched array_list.Managed to ArrayList where it was convenient.
Reviewed-on: https://codeberg.org/ziglang/zig/pulls/32001
Reviewed-by: Andrew Kelley <andrew@ziglang.org>
Andrew Kelley