I realized what rhelmot did in 61202561d9
(specify what packages just need `stdenvNoLibc`) is definitely the right
approach for this, and adjusted NetBSD and OpenBSD to likewise use it.
With that change, we don't need these confusing and ugly `*bsdCross`
package sets at all!
We can get rid of a lot more libc-related `*Cross`, and I will do so
soon, but this is the first step.
(adapted from commit 51f1ecaa59)
For a long time, we've had `crossLibcStdenv`, `*Cross` libc attributes,
and `*bsdCross` pre-libc package sets. This was always bad because
having "cross" things is "not declarative": the naming doesn't reflect
what packages *need* but rather how we *provide* something. This is
ugly, and creates needless friction between cross and native building.
Now, almost all of these `*Cross` attributes are gone: just these are
kept:
- Glibc's and Musl's are kept, because those packages are widely used
and I didn't want to risk changing the native builds of those at this
time.
- generic `libcCross`, `theadsCross`, and friends, because these relate
to the convolulted GCC bootstrap which still needs to be redone.
The BSD and obscure Linux or freestnanding libcs have conversely all
been made to use a new `stdenvNoLibc`, which is like the old
`crossLibcStdenv` except:
1. It usable for native and cross alike
2. It named according to what it *is* ("a standard environment without
libc but with a C compiler"), rather than some non-compositional
jargon ("the stdenv used for building libc when cross compiling",
yuck).
I should have done this change long ago, but I was stymied because of
"infinite recursions". The problem was that in too many cases we are
overriding `stdenv` to *remove* things we don't need, and this risks
cyles since those more minimal stdenvs are used to build things in the
more maximal stdenvs.
The solution is to pass `stage.nix` `stdenvNoCC`, so we can override to
*build up* rather than *tear down*. For now, the full `stdenv` is also
passed, so I don't need to change the native bootstraps, but I can see
this changing as we make things more uniform and clean those up.
Finally, the BSDs also had to be cleaned up, since they have a few
pre-libc dependencies, demanding a systematic approach. I realized what
rhelmot did in 61202561d9 (specify what
packages just need `stdenvNoLibc`) is definitely the right approach for
this, and adjusted NetBSD and OpenBSD to likewise use it.
These headers conflict with the unwind headers from libunwind
provided by libgcc_eh in `freebsd.libc`.
Upstream FreeBSD does not use these headers in any capacity,
and they cause some incompatibilities since libcxxrt unwind.h
requires _GNU_SOURCE for some functions, while libunwind does not.
Previously, an attribute named isStatic did this, but this was lost in a
refactor. Revive it and rename it to noLibc to be more clear about its
intended use.
netbsd can no longer compile under FreeBSD native early bootstrap
stdenv, so switch to coreutils. This only involves discarding the -l
flag. The -l flag causes a symlink instead of a copy to be installed, so
it is safe to discard during bootstrap.
This package will be necessary down the line for binary patching
applications built for non-nix FreeBSD. It is additionally being
considered for inclusion in FreeBSD libcxx, both cross and native.
The old patches are kept because the version is actually configurable.
In the future both versions may be exposed.
Co-Auhtored-By: Artemis Tosini <me@artem.ist>
Co-Authored-by: John Ericson <John.Ericson@Obsidian.Systems>
* Extend libc
Include non-libc core libraries in the libc package. Many of these
mirror libraries present in glibc on linux, such as libgcc, libraries
used for iconv, and libraries used for reading kernel info (libkvm,
libprocstat, libmemstat).
Without this many packages outside the freebsd tree would need to be
modified to include standard dependencies which would already be on
the system for other packages.
* Mark FreeBSD as using LLVM
* Update default LLVM version FreeBSD
* Use patch monolith
The patchesRoot system combined with the fact that each derivation
will Request specific names of patches makes it very annoying to use
other FreeBSD source trees with nixpkgs. This new system allows
providing one Or more entire trees of patches whose contents will be
dynamically Parsed and only the relevant patches will be applied for
any one Derivation.
With this commit, the following knobs are available for specifying the
FreeBSD source:
- overriding `freebsd.versionInfo`, for picking another official
supported FreeBSD release.
- overriding `freebsd.source` for specifying a specific unpatched
FreeBSD source tree.
- overriding `freebsd.patches`, for specifying the patches to apply.
Co-Authored-by: Audrey Dutcher <audrey@rhelmot.io>
Co-Authored-by: John Ericson <John.Ericson@Obsidian.Systems>
This creates multiple package sets for different versions. The other
versions don't yet work, but that will be fixed in subsequent PRs.
Push versionData into package set so that it can be overridden
Co-Authored-By: Audrey Dutcher <audrey@rhelmot.io>
Co-Authored-By: Artemis Tosini <me@artem.ist>
We want to know the minor versions.
We want to know the patch versions too, where possible. We get those
either from the branch when it is the form `RELEASE-p<patch>`, or from
the tag when its in the form `release/<major>.<minor>.<patch>`.
There are a number of packages that we ought to be able to autocall, but
cannot because we need to add manual arguments just to avoid splicing.
This sucks but is the right call for now --- the conclusion should be
not that auto-calling is bad, but that splicing is bad.
This tries to do nothing but move things around; hashes are almost
unchanged. @rhelmot then has more changes to do on top of this, which
will be easier to review since code will be modified in place rather
than moved around and modified at the same time.
Deeply-curried functions are pretty error-prone in untyped languages
like Nix. This is a particularly bad case because
`top-level/splice.nix` *also* declares a makeScopeWithSplicing, but
it takes *two fewer arguments*.
Let's switch to attrset-passing form, to provide some minimal level
of sanity-checking.
with structuredAttrs lists will be bash arrays which cannot be exported
which will be a issue with some patches and some wrappers like cc-wrapper
this makes it clearer that NIX_CFLAGS_COMPILE must be a string as lists
in env cause a eval failure
FreeBSD implements Linux's evdev API, but doesn't come with headers
for it. Instead, the Linux headers are just modified to be suitable
for FreeBSD, via a port called evdev-proto. I don't want to copy the
complicated sed expressions from the port into Nixpkgs, so instead we
just build and install the port inside a Nix derivation.
Always set `SRCTOP`, set it with abs path
llvmPackages: Bump minimum version for FreeBSD
llvmPackages_*, libgcc, compiler_rt: Hack in enough libs that one can compiler C
freebsd.compat: Rename some things to work around cc-wrapper change
0bea4a194f / #191724 in particular
