Shoaib Meenai 7cc328600e [ELF] Prevent LTO stripping of wrapped script-referenced symbols ... After 1af25a9860, we stop unconditionally retaining wrapped symbols, which means that LTO's summary-based global dead stripping can eliminate them even if they'll be referenced by a linker script after the wrapping is performed. Mark symbols referenced in linker scripts as `referenced` in addition to `isUsedInRegularObj`, so that the wrapping logic correctly sets `referencedAfterWrap` for the symbols which will be referenced after wrapping, which will prevent LTO from eliminating them. An alternative would have been to change the `referencedAfterWrap` logic to look at `isUsedInRegularObj` in addition to `referenced`, but `isUsedInRegularObj` is also set in other places (e.g. for the entry symbol), and it's not clear that we want `referencedAfterWrap` to take all those places into account, so it seemed better to keep that logic as-is and instead set `referenced` for linker script-referenced symbols. Reviewed By: MaskRay Differential Revision: https://reviews.llvm.org/D124433		2022-04-26 18:48:26 -07:00
..
COFF	[LLD][COFF] Add support for /noimplib	2022-04-13 10:32:44 +02:00
ELF	[ELF] Prevent LTO stripping of wrapped script-referenced symbols	2022-04-26 18:48:26 -07:00
MachO	[lld/mac] For catalyst outputs, tolerate implicitly linking against mac-only tbd files	2022-04-23 21:43:46 -04:00
MinGW	[LLD][MinGW] Add --heap argument support	2022-01-30 00:01:45 +02:00
Unit	[cmake] Provide CURRENT_TOOLS_DIR centrally, replacing CLANG_TOOLS_DIR	2022-03-25 20:22:01 +01:00
wasm	[lld] Remove support for legacy pass manager	2022-04-07 10:17:31 +02:00
CMakeLists.txt	[cmake] Provide CURRENT_TOOLS_DIR centrally, replacing CLANG_TOOLS_DIR	2022-03-25 20:22:01 +01:00
lit.cfg.py	Reland "[ELF] Enable new passmanager plugin support for LTO"	2022-03-24 16:29:18 +01:00
lit.site.cfg.py.in	[cmake] Provide CURRENT_TOOLS_DIR centrally, replacing CLANG_TOOLS_DIR	2022-03-25 20:22:01 +01:00