4 Commits

Author SHA1 Message Date
Isaac Freund
f9963909a1
stage2/wasm: only free types after func overwrite
Functions which are free'd are not immediately removed from the binary
as this would cause a shifting of function indexes. Instead, they hang
around until they can be overwritten by a new function. This means that
the types associated with these dead functions must also remain until
the function is overwritten to avoid a type mismatch.
2020-08-18 01:01:13 +02:00
Isaac Freund
60fb50ee5a
stage2/wasm: write exports on flush, cleanup
Exports now have a dirty flag and are rewritten on flush if this flag
has been set.

A couple other minor changes have been made based on Andrew's review.
2020-08-18 01:01:13 +02:00
Isaac Freund
3370b5f109
stage2/wasm: implement basic container generation
Thus far, we only generate the type, function, export, and code
sections. These are sufficient to generate and export simple functions.

Codegen is currently hardcoded to `i32.const 42`, the main goal of this
commit is to create infrastructure for the container format which will
work with incremental compilation.
2020-08-18 00:32:58 +02:00
Jakub Konka
5cb96681d9 Move Mach-O to link/MachO.zig submodule
Remove `ptrWidth` since as of Catalina, all apps are 64bits only.

Signed-off-by: Jakub Konka <kubkon@jakubkonka.com>
2020-08-17 18:16:29 +02:00