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135 commits

Author SHA1 Message Date
Bill Currie
1dd8f34190 Refactor process_def. 
The field/data def handling has been moved into process_data_def and
process_field def. The code for handling external defs has been moved into
its own function (extern_def()),

In passing, rename add_space to add_data_space, since it is limited to
handling data spaces.
 2012-11-13 13:16:45 +09:00
Bill Currie
ba6fb5802d Make add_defs take a function to process the defs. 
For now, no other change has been made, but I'll be able to split up
process_def for data def vs field def processing and add a function for
processing type encoding defs.
 2012-11-13 12:40:40 +09:00
Bill Currie
c96718493a A bit of a cleanup before fixing class type defs. 
All internal structs now have "proper" names, and fit the naming convention
(eg, obj_module (like objective-c's types, but obj instead of objc). Some
redundant types got removed (holdovers from before proper struct tag
handling).

Also, it has proven to be unnecessary to build internal classes, so
make_class and make_class_struct are gone, too.
 2012-11-12 11:12:33 +09:00
Bill Currie
6ec5bb1884 Change the FIXME to a comment as to why nothing is done. 
Of course, the relocation record still needs to be written (don't know why
it isn't), but that's next :)
 2012-11-11 20:36:25 +09:00
Bill Currie
8710977323 Rework transfer_type to avoid infinite recursion. 
This is similar to the problem with infinite recursion when encoding types.
The problem is with structs with self-referential pointers (eg, struct foo
{struct foo *bar}). The solution is to copy the type data to a buffer and
mark the buffer as transfered before actually processing the type. Further
processing of the type is done via the buffer.
 2012-11-11 20:20:07 +09:00
Bill Currie
afbab60c25 Create linker_find_def. 
It turns out I didn't need it, but it could be useful in the future, so
I'll leave it in.
 2012-11-09 11:57:06 +09:00
Bill Currie
377f8f9d56 Use an explicit flag for class initialization. 
Much cleaner than messing with class_Class, which is about to go away.
 2012-11-08 17:14:33 +09:00
Bill Currie
ec42bde527 Make hash tables more const correct. 
And clean up the resulting mess :/
 2012-10-27 11:44:31 +09:00
Bill Currie
27b83a8d65 Clean up all extra aborts, using internal_error instead. 
Some internal_error calls have no message, but at least things will be more
consistent.
 2012-10-26 19:02:02 +09:00
Bill Currie
23a38738fc Massive whitespace cleanup. 
Lots of trailing whitespace and otherwise blank lines.
 2012-05-22 08:23:22 +09:00
Bill Currie
bc1b483525 Nuke the rcsid stuff. 
It's pretty useless in git.
 2012-04-22 10:56:32 +09:00
Bill Currie
d910c14935 Clean up some doxygen warnings. 2011-07-10 19:12:07 +09:00
Bill Currie
0f7390dd60 Clean up all the "set but not used" warnings. 
gcc on my system is failing to treat this specific warning as an error :/
 2011-06-19 10:48:02 +09:00
Bill Currie
b522853765 Ensure the target of def_op relocs gets updated. 
These occur only when switch statements use jump tables, thus why the
problem went unnoticed :/
 2011-04-08 17:09:40 +09:00
Bill Currie
92ba110a87 Ensure a field def is emitted for @this. 2011-04-03 13:03:48 +09:00
Bill Currie
7f67e6eb17 Refactor the def handling code a little. 2011-04-03 13:03:22 +09:00
Bill Currie
6d0b13dbf0 Resolve types whenever possible. 2011-04-03 13:02:04 +09:00
Bill Currie
9b62c8c126 Rename ty_type_e to ty_meta_e and type_t.ty to type_t.meta 2011-03-22 16:06:47 +09:00
Bill Currie
f1d9570dc8 Fix constant value type handling. 
Rename immediate.[ch] to value.[ch] and clean up the mess.

Add convert_value() to convert the type of a value (only scalar types).
 2011-03-22 12:24:39 +09:00
Bill Currie
505bde308e Fix the handling of @system defs. 
When treating a def as external, actually say it is external.
 2011-03-07 20:53:27 +09:00
Bill Currie
8dbf8a97ea Be more informative with ext/def internal errors. 2011-03-07 20:52:31 +09:00
Bill Currie
49e446b637 Make field defs global. 
It turns out that field defs need to be global after all, so use separate
field def tables in the linker.
 2011-03-07 14:45:50 +09:00
Bill Currie
c4e9a45d91 Do not lose the entity field defs. 2011-03-06 15:40:07 +09:00
Bill Currie
97b1ceceb0 Fix line number info. 
line number info is now 1 based rather than 0 based (to better detect when
a function does not have line number info).
 2011-03-05 15:40:08 +09:00
Bill Currie
7c95913c61 Avoid segfaulting with bad string relocs. 2011-03-05 09:07:16 +09:00
Bill Currie
fe7be543f8 Correctly update the offset of code relocs. 2011-03-05 08:39:47 +09:00
Bill Currie
c3f1c186f8 Resolve types of .return etc. 2011-03-05 08:36:55 +09:00
Bill Currie
e62163e569 Nuke any invalidated relocs. 2011-03-04 21:46:19 +09:00
Bill Currie
2565e0db32 Update reloc targets when linking. 2011-03-04 21:29:47 +09:00
Bill Currie
e04f6266b1 Nuke def_list from defref_t. 
It didn't work :/.
 2011-03-04 20:40:01 +09:00
Bill Currie
2211a807d4 Do not relocate builtin functions. 2011-03-04 18:46:25 +09:00
Bill Currie
9a96febdf5 Fix the hordes of bogus defs. 
They were caused by unused external defs, so not processing unused externs
in the first place is the simplest solution.
 2011-03-04 14:51:09 +09:00
Bill Currie
7b7f4c70e0 Correct non-external def processing. 2011-03-04 14:33:03 +09:00
Bill Currie
c5dac6d1d1 Transfer the type encoding. 
oops
 2011-03-04 14:29:22 +09:00
Bill Currie
e525727a24 Add a null type descriptor to the linker output. 2011-03-04 11:38:33 +09:00
Bill Currie
3a828ca5c2 Ensure work spaces are always connected to their data. 2011-03-04 11:18:56 +09:00
Bill Currie
29985efcef Expose some linker functions to the rest of the compiler. 
They proved to be useful for cleaning up the final compilation stages.
 2011-03-02 20:48:55 +09:00
Bill Currie
065d3e0dd7 Partial linking for a single qfo file now seems to work. 2011-03-02 14:03:41 +09:00
Bill Currie
bfeece3255 Fix the bogus declarations of obj_msgSend and obj_msgSend_super. 2011-03-02 12:35:10 +09:00
Bill Currie
fda46a4aca Handle the special defs. 2011-03-02 12:26:53 +09:00
Bill Currie
54317965cc Handle relocs. 
With this, the building of the work qfo seems to be almost finished, just
the special defs to go. Next step will be to stitch all the parts of the
work qfo into a real qfo.

However, still have to fix the relocs for the type descriptors, but they
are not critical to the linker's functioning.
 2011-03-02 11:16:35 +09:00
Bill Currie
8669dc373f Add some documentation. 2011-03-02 11:13:44 +09:00
Bill Currie
65bd215058 Minor rearrangements. 2011-03-01 15:35:14 +09:00
Bill Currie
2cb1c74718 More progress on the linker. 
Need to finish up defs and handle relocs, and then take care of special
defs (@self etc), but things are getting very close.
 2011-03-01 15:18:47 +09:00
Bill Currie
c36919aae7 Fix verbosity and diagnostic messages. 2011-03-01 11:08:32 +09:00
Bill Currie
cfff2b1037 Add defs from near and far data spaces. 2011-03-01 10:52:27 +09:00
Bill Currie
21558864b9 Make defrefs a little more stupid. 
Stupid code does little well :P

I forgot that spaces get realloced, and I don't remember why I had the def
list pointer separate anyway.
 2011-03-01 09:19:04 +09:00
Bill Currie
1416b996d3 Ensure the type space pointer is cleared with each object file. 2011-03-01 09:18:09 +09:00
Bill Currie
30272968c9 Update the def's type pointer. 2011-03-01 09:17:32 +09:00
Bill Currie
1837518d05 Split the space processing into two passes. 
This allows strings and types to be handled before code and data.
 2011-03-01 08:48:58 +09:00