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| author | Nick Kledzik <kledzik@apple.com> | 2014-10-21 23:45:37 +0000 |
|---|---|---|
| committer | Nick Kledzik <kledzik@apple.com> | 2014-10-21 23:45:37 +0000 |
| commit | 9133f8c76d27c350bfc625319558f2f9cd2f8c03 (patch) | |
| tree | 853506ab3a411944516ddae784a11f7dd54f49cc /llvm/lib/Transforms | |
| parent | 41d95947cfc4b143cd0ca922e93cc582a6d10e96 (diff) | |
| download | bcm5719-llvm-9133f8c76d27c350bfc625319558f2f9cd2f8c03.tar.gz bcm5719-llvm-9133f8c76d27c350bfc625319558f2f9cd2f8c03.zip | |
[mach-o] Support missing MH_SUBSECTIONS_VIA_SYMBOLS
All compiler generated mach-o object files are marked with MH_SUBSECTIONS_VIA_SYMBOLS.
But hand written assembly files need to opt-in if they are written correctly.
The flag means the linker can break up a sections at symbol addresses and
dead strip or re-order functions.
This change recognizes object files without the flag and marks its atoms as
not dead strippable and adds a layout-after chain of references so that the
atoms cannot be re-ordered.
llvm-svn: 220348
Diffstat (limited to 'llvm/lib/Transforms')
0 files changed, 0 insertions, 0 deletions
