- removed an unnecessary (and confusing) `anyerror` fronm the function
signature of `main`
- replaced the call to std.log with two prints: one to stderr and one to
stdout
- replaced the test code with a better example
This way, tracking segment-to-section mapping becomes a lot easier
since it's effectively just start index plus number of sections
defined within the segment. If a section becomes empty however
care needs to be taken to remove the header upon committing to the
final binary.
Fix incorrect writing of symtab and strtab in dSYM bundle in incremental
context.
Fix incorrectly navigating unnamed consts (freeing) in incremental context.
This is currently hard-coded to require all consts to land in `__TEXT,__const`,
which is wrong and needs a rewrite.
Instead of generating sections upfront, allow generation by scanning
the object files for input -> output sections mapping. Next, always
strive to keep output sections in the final container sorted as they
appear in the final binary. This makes the linker less messy wrt
handling of output sections sort order for dyld/macOS not to complain.
There's still more work to be done for incremental context though
to make this work but looks promising already.
Previously we expected to only find decl refs in a `foo.bar.baz`
type of expression. This would crash when trying to render something
like `@typeInfo(T).Int.bits`. We now properly account for builtins
and other components.
As part of the Opaque Pointers upgrade documentation, LLVM says that the
function LLVMGetGEPSourceElementType() can be used to obtain element
type information in lieu of LLVMGetElementType(), however, this function
actually returns the struct type, not the field type. The GEP
instruction does store the information we need, however, this is not
exposed in the C API. It seems like they accidentally exposed the wrong
field, because one would never need the struct type since one must
already pass it directly to the GEP instruction, so one will always have
it handy, whereas one will usually not have the field type handy.
