Commit Graph

5 Commits

Author SHA1 Message Date
Nick Kledzik 761d6549bc [mach-o] Support data-only dylibs
In final linked shared images, the __TEXT segment contains both code and
the mach-o header/load-commands.  In the case of a data-only dylib, there is
no code, so we need to force the addition of the __TEXT segment.

llvm-svn: 220597
2014-10-24 22:19:22 +00:00
Nick Kledzik cb2018f57c [mach-o] Use default for min OS version when not specified on command line.
This matches the current darwin linker.

llvm-svn: 219376
2014-10-09 01:01:16 +00:00
Tim Northover cf78d37fd6 [mach-o] create __unwind_info section on x86_64
This is a minimally useful pass to construct the __unwind_info section in a
final object from the various __compact_unwind inputs. Currently it doesn't
produce any compressed pages, only works for x86_64 and will fail if any
function ends up without __compact_unwind.

rdar://problem/18208653

llvm-svn: 218703
2014-09-30 21:29:54 +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 7b0a1306b4 MachO: align segment virtual addresses to page size.
Segments must occupy a multiple of the page size in memory (4096 currently). We
check for this when emitting files, but the placement algorithm broke down for
the second non-__TEXT segment encountered: the offset wasn't aligned up to 4096
before starting its layout.

llvm-svn: 212031
2014-06-30 09:49:33 +00:00