Actually, the machine-independent-to-specific part is trivial. The
hard part was making `compiled-expression-recompile` enable
cross-linklet optimization as it recompiles, since that involves
pulling apart metadata and putting it back together afterward.
The `compile-machine-indendent` parameter controls whether `compile`
creates a compiled expression that writes (usually in a ".zo" file) to
a machine-independent form that works for anhy Racket platform and
virtual machine. The parameter can be set through the
`-M`/`--compile-any` command-line flag or the `PLT_COMPILE_ANY`
environment variable.
Loading machine-independent code is too slow for many purposes, but
separating macro expansion from backend compilation seems likely to be
a piece of the puzzle from cross-compilation and faster distribution
builds.
Converting "invalid memory reference" to an `exn:fail:contract` (which
is the default conversion) hides crashes as success when a test
expects an error.
Also, fix a bug that was hiding as an expected excdeption.
The Racket and RacketCS implementations had separate copies of
linklet-directory and linklet-bundle reading and writing. Move the
implementation into the expander layer.
The primitive '#%linklet instance now omits directory and bundle
operations and `read-compiled-linklet`. It intead must provide
`write-linklet-bundle-hash`, `read-linklet-bundle-hash`, and
`linklet-virtual-machine-bytes`.
In particular, when there isn't any redundancy detected, then
just make a single call into the projection and create just a single
class.
This seems to help on at least one of the configurations of
dungeon, which completes in about 6 minutes with this commit
and I gave up waiting after 15 minutes for the version of
racket that didn't have it
Improves the error message for:
```
(define-syntax (like-lambda stx)
(syntax-case stx ()
[(_ e) #'(lambda () e)]))
(like-lambda (define x 1))
```
Based on a report from @pkoronkevich.
When an executable distibution is created, some path become
unavailable at run time, such as the result of `find-links-file`.
Change the contract on those functions and adjust the implementation
to return `#f` in those cases. This is a backward-compatible change in
the sense that uses that now return `#f` would have crashed before
(although it does shift the blame in that case).
Based on an initial patch by Shu-Hung.
Closes#2352
The distro-build process creates an executable in a build area, then
uses it to set up a distribution in a "bundle" directory. That way,
any package-supplied native libraries will be found in the process of
installaning a package, in case installation needs native libraries.
Don't switch in the case of cross-compiling, though. For
cross-compilation, `PLAIN_RACKET` still has to be used, since it is
set up to be one that runs on the build platform, and the
`PLAIN_RACKET` installation simply has to have any needed native
libraries installed. That's why the makefile wasn't using the
exectuable in "bundle" before for package installation (but it can
create trouble for non-cross builds, especially on Windows).
Source mode was a leftover from early iterations of the expander. A
bootstrapping mode that uses replacement `compile-linklet`, etc.,
turned out better.
