[why]
Support for the relatively new mold linker is missing. If someone wants
to use mold as linker `LDFLAGS="-B/path/to/mold"` has to be added instead
of the usual `CC_LD=mold meson ...` or `CXX_LD=mold meson ...`.
[how]
Allow `mold' as linker for clang and newer GCC versions (that versions
that have support).
The error message can be a bit off, because it is generic for all GNU
like compilers, but I guess that is ok. (i.e. 'mold' is not listed as
possible linker, even if it would be possible for the given compiler.)
[note]
GCC Version 12.0.1 is not sufficient to say `mold` is supported. The
expected release with support will be 12.1.0.
On the other hand people that use the un-released 12.0.1 will probably
have built it from trunk. Allowing 12.0.1 is helping bleeding edge
developers to use mold in Meson already now.
Fixes: #9072
Signed-off-by: Fini Jastrow <ulf.fini.jastrow@desy.de>
When something goes wrong with running the compiler in
_symbols_have_underscore_prefix_searchbin, print stderr instead,
as it actually contains helpful output while stdout is usually empty
in this case.
Removed errant "type: ignore".
Fixed issue with "fetch" call. This issue was the following:
Dict::get() and Dict::pop() have the following signature:
T.Callable[[_T, _U], _U | None] OR T.Callable[[_T], _U | None]
Note how the return type is _U here. When the fetch() function was
actually being called, it had the following signature:
T.Callable[[_T, T.List[_U]], T.Union[T.List[_U], _U]]
This is incompatible with the previous definitions. The solution is
simply to move where the default value is introduced if fetch() produces
None.
We have a lot of these. Some of them are harmless, if unidiomatic, such
as `if (condition)`, others are potentially dangerous `assert(...)`, as
`assert(condtion)` works as expected, but `assert(condition, message)`
will result in an assertion that never triggers, as what you're actually
asserting is `bool(tuple[2])`, which will always be true.
When mutable items are stored in an lru cache, changing the returned
items changes the cached items as well. Therefore we want to ensure that
we're not mutating them. Using the ImmutableListProtocol allows mypy to
find mutations and reject them. This doesn't solve the problem of
mutable values inside the values, so you could have to do things like:
```python
ImmutableListProtocol[ImmutableListProtocol[str]]
```
or equally hacky. It can also be used for input types and acts a bit
like C's const:
```python
def foo(arg: ImmutableListProtocol[str]) -> T.List[str]:
arg[1] = 'foo' # works while running, but mypy errors
```
This gets rid of compile warnings, and simplifies the code.
Note that `work_dir` in sanity_check_impl was incorrect,
it was used both to prepend to file names and as cwd=work_dir
argument to Popen. This is fixed here.
Closes gh-7344
Dependencies is already a large and complicated package without adding
programs to the list. This also allows us to untangle a bit of spaghetti
that we have.
All changes were created by running
"pyupgrade --py3-only --keep-percent-format"
and committing the results. I have not touched string formatting for
now.
- use set literals
- simplify .format() parameter naming
- remove __future__
- remove default "r" mode for open()
- use OSError rather than compatibility aliases
- remove stray parentheses in function(generator) scopes
This patches takes the options work to it's logical conclusion: A single
flat dictionary of OptionKey: UserOptions. This allows us to simplify a
large number of cases, as we don't need to check if an option is in this
dict or that one (or any of 5 or 6, actually).
I would have prefered to do these seperatately, but they are combined in
some cases, so it was much easier to convert them together.
this eliminates the builtins_per_machine dict, as it's duplicated with
the OptionKey's machine parameter.
The implementation of the link variant was what should have been the
compiler variant, and there was no valid compiler variant, which meant
it was getting C code.
This abstraction is really useful, and most compilers could use it
(including D). It also will allow the Gnu mixins to work properly
without the CLikeCompiler in their mro.
We do this by making the mixins inherit the Compiler class only when
mypy is examining the code (using some clever inheritance shenanigans).
This caught a bunch of issues, and also lets us delete a ton of code.
Every class needs to set this, so it should be part of the base. For
classes that require is_cross, the positional argument remains in their
signature. For those that don't, they just allow the base class to set
their value to it's default of False.
Currently we do some crazy hackery where we add extra properties to a
Popen object and return that. That's crazy. Especially since some of our
hackery is to delete attributes off of the Popen we don't want. Instead,
let's just have a discrete type that has exactly the properties we want.
1. Like with gcc's `ld`, also use the `group_start` code to create a
`--start-group`/`--end-group`
2. xc16 tricked into believing the 'link_whole' was about `--*-group`,
but it should use gcc's `--whole-archive` instead.
3. Not clear what the get_lib_prefix should really do, but for picolibc
it seems I want just `''`.
The problem with picolibc was that the `-l` would be prefixed to a lib
like `picolib/libm/libm.a`. Though of course the `-l` would be necessary
for just a plain `m` (that's what I assumed this would be used for).
I think this might need some clarification from the meson devs ;-)
This type happened in https://github.com/mesonbuild/meson/pull/7432
and wasn't noticed because I didn't add a test for it. Rectified now.
If we don't specify the CRT, MSVC will pick /MT by default (!?) and
link to `libcmt.lib`. This actually *breaks* UWP because `libcmt.lib`
is not available by default when building for UWP.
Was noticed here: https://github.com/cisco/libsrtp/pull/505
Look for group-able flags with a single regex match, since we are already using
regexes for .so files. Also weed out flags other than -isystem very quickly
with a single startswith call.
On a QEMU build, the time spent in to_native goes from 2.279s to 1.322s.
The linker always args, as the name implies, should always be included. For
example, the AIX get_allow_undefined_link_args are a syntax error unless
the AIX get_linker_always_args are also used.
I made the mistake of always selecting the debug CRT for compiler
checks on Windows 4 years ago:
https://github.com/mesonbuild/meson/pull/543https://github.com/mesonbuild/meson/pull/614
The idea was to always build the tests with debugging enabled so that
the compiler doesn't optimize the tests away. But we stopped doing
that a while ago, and also the debug CRT has no relation to that.
We should select the CRT in the same way that we do for building
targets: based on the options.
On Windows ARM64, the debug CRT for ARM64 isn't always available, and
the release CRT is available only after installing the runtime
package. Without this, we will always try to pick the debug CRT even
when --buildtype=debugoptimized or release.
Eli Schwartz
Yang Bo
Alf Henrik Sauge
Tristan Partin
Fini Jastrow
Marvin Scholz
Vladimír Čunát
Evan Miller
Dylan Baker
Daniel Mensinger
Ralf Gommers
Jussi Pakkanen
Antonin Décimo
Sebastian Meyer
Nirbheek Chauhan
Paolo Bonzini
Peter Harris