Commit Graph

7 Commits

Author SHA1 Message Date
Lang Hames 5e7cfe4e2b [lld][MachO] Prune unused EH frames.
llvm-svn: 251095
2015-10-23 05:39:16 +00:00
Rafael Espindola c08ab8e6e4 Delete unnecessary generality in loadFile.
loadFile could load mulitple files just because yaml has a feature for
putting multiple documents in one file.

Designing a linker around what yaml can do seems like a bad idea to
me. This patch changes it to read a single file.

There are further improvements to be done to the api and they
will follow shortly.

llvm-svn: 235724
2015-04-24 15:51:45 +00:00
Nick Kledzik 37d1aa715a [mach-o] remove extra leading underscore on __bss and __got
llvm-svn: 221425
2014-11-06 01:14:12 +00:00
Tim Northover f98b1c9960 [mach-o] remove __compact_unwind atoms once __unwind_info has been generated
The job of the CompactUnwind pass is to turn __compact_unwind data (and
__eh_frame) into the compressed final form in __unwind_info. After it's done,
the original atoms are no longer relevant and should be deleted (they cause
problems during actual execution, quite apart from the fact that they're not
needed).

llvm-svn: 221301
2014-11-04 21:57:32 +00:00
Nick Kledzik 2458bec7e7 [mach-o] refactor KindHandler into ArchHandler and simplify passes.
All architecture specific handling is now done in the appropriate
ArchHandler subclass.

The StubsPass and GOTPass have been simplified.  All architecture specific
variations in stubs are now encoded in a table which is vended by the
current ArchHandler.

llvm-svn: 213187
2014-07-16 19:49:02 +00:00
Tim Northover b5bf686b58 MachO: stop iterating past the end of an array
When trying to map atom types to sections, we were iterating through an array
until we hit a sentinel value. There's no need for such dances when range-based
for loops are available.

llvm-svn: 212035
2014-06-30 10:30:00 +00:00
Tim Northover 9ee9935358 MachO: re-enable writing of compact-unwind sections.
This isn't really the right place to put them in final object files (that would
be __TEXT,__unwind_info), but the format is different between relocatable and
final objects, which means we really need a pass to handle the translation.

For now, re-emitting in __LD,__compact_unwind is harmless (dyld ignores it and
moves straight on to inspecting __TEXT,__eh_frame), and sidesteps an assertion
failure when processing files containing compact-unwind info.

llvm-svn: 212032
2014-06-30 09:49:37 +00:00