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* Reland "Emit Function IDs table for Control Flow Guard"Adrian McCarthy2018-01-091-0/+11
| | | | | | | | | | | | | | | | | Adds option /guard:cf to clang-cl and -cfguard to cc1 to emit function IDs of functions that have their address taken into a section named .gfids$y for compatibility with Microsoft's Control Flow Guard feature. The original patch didn't have the lit.local.cfg file that restricts the new test to x86, thus the new test was failing on the non-x86 bots. Differential Revision: https://reviews.llvm.org/D40531 The reverts r322008, which was a revert of r322005. This reverts commit a05b89f9aca70597dc79fe97bc49b50b51f525ba. llvm-svn: 322136
* Don't create MCFillFragment directly.Rafael Espindola2018-01-091-13/+6
| | | | | | Instead use higher level APIs that take care of most bookkeeping. llvm-svn: 322123
* Revert "Emit Function IDs table for Control Flow Guard"Adrian McCarthy2018-01-081-11/+0
| | | | | | | | | | The new test fails on the Hexagon bot. Reverting while I investigate. This reverts https://reviews.llvm.org/rL322005 This reverts commit b7e0026b4385180c378edc658ec91a39566f2942. llvm-svn: 322008
* Emit Function IDs table for Control Flow GuardAdrian McCarthy2018-01-081-0/+11
| | | | | | | | | | Adds option /guard:cf to clang-cl and -cfguard to cc1 to emit function IDs of functions that have their address taken into a section named .gfids$y for compatibility with Microsoft's Control Flow Guard feature. Differential Revision: https://reviews.llvm.org/D40531 llvm-svn: 322005
* NFC: Rename MCSafeSEHFragment to MCSymbolIdFragmentAdrian McCarthy2017-11-081-1/+1
| | | | | | | | | | | | | | | Summary: This fragment emits a symbol ID and will be useful for more than just Safe SEH tables (e.g., I plan to re-use it for Control Flow Guard tables). This is simply a rename refactor. Reviewers: rnk Subscribers: llvm-commits, hiraditya Differential Revision: https://reviews.llvm.org/D39770 llvm-svn: 317703
* [MC] Have MCObjectStreamer take its MCAsmBackend argument via unique_ptr.Lang Hames2017-10-111-2/+4
| | | | | | | | MCObjectStreamer owns its MCCodeEmitter -- this fixes the types to reflect that, and allows us to remove the last instance of MCObjectStreamer's weird "holding ownership via someone else's reference" trick. llvm-svn: 315531
* [MC] Have MCObjectStreamer take its MCAsmBackend argument via unique_ptr.Lang Hames2017-10-111-2/+3
| | | | | | | | MCObjectStreamer owns its MCAsmBackend -- this fixes the types to reflect that, and allows us to remove another instance of MCObjectStreamer's weird "holding ownership via someone else's reference" trick. llvm-svn: 315410
* [SEH] Use reportError instead of report_fatal_error for bad directivesReid Kleckner2017-10-101-1/+1
| | | | | | | | | | This makes the .seh_ directives slightly more usable from standalone assembly files. This removes a large number of report_fatal_errors and recovers from the error by ignoring the directive. llvm-svn: 315262
* [MC] Allow assembling .secidx and .secrel32 for undefined symbolsReid Kleckner2017-06-221-2/+4
| | | | | | | | | | | There's nothing incorrect about emitting such relocations against symbols defined in other objects. The code in EmitCOFFSec* was missing the visitUsedExpr part of MCStreamer::EmitValueImpl, so these symbols were not being registered with the object file assembler. This will be used to make reduced test cases for LLD. llvm-svn: 306057
* Rename WinCOFFStreamer.cpp -> MCWinCOFFStreamer.cppSam Clegg2017-06-211-0/+296
For consistency with other MC*Streamer.cpp files and the header file. Differential Revision: https://reviews.llvm.org/D34466 llvm-svn: 305952
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