Saleem Abdulrasool | a8b1f72 | 2014-04-27 03:48:12 +0000 | [diff] [blame] | 1 | //===-- X86WinCOFFStreamer.cpp - X86 Target WinCOFF Streamer ----*- C++ -*-===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #include "X86MCTargetDesc.h" |
Reid Kleckner | 9cdd4df | 2017-10-11 21:24:33 +0000 | [diff] [blame] | 11 | #include "X86TargetStreamer.h" |
Lang Hames | 02d3305 | 2017-10-11 01:57:21 +0000 | [diff] [blame] | 12 | #include "llvm/MC/MCAsmBackend.h" |
Lang Hames | 2241ffa | 2017-10-11 23:34:47 +0000 | [diff] [blame] | 13 | #include "llvm/MC/MCCodeEmitter.h" |
Saleem Abdulrasool | 64a8cc7 | 2014-08-07 02:59:41 +0000 | [diff] [blame] | 14 | #include "llvm/MC/MCWin64EH.h" |
Saleem Abdulrasool | a8b1f72 | 2014-04-27 03:48:12 +0000 | [diff] [blame] | 15 | #include "llvm/MC/MCWinCOFFStreamer.h" |
| 16 | |
| 17 | using namespace llvm; |
| 18 | |
| 19 | namespace { |
| 20 | class X86WinCOFFStreamer : public MCWinCOFFStreamer { |
Saleem Abdulrasool | 64a8cc7 | 2014-08-07 02:59:41 +0000 | [diff] [blame] | 21 | Win64EH::UnwindEmitter EHStreamer; |
Saleem Abdulrasool | a8b1f72 | 2014-04-27 03:48:12 +0000 | [diff] [blame] | 22 | public: |
Lang Hames | 02d3305 | 2017-10-11 01:57:21 +0000 | [diff] [blame] | 23 | X86WinCOFFStreamer(MCContext &C, std::unique_ptr<MCAsmBackend> AB, |
Lang Hames | 2241ffa | 2017-10-11 23:34:47 +0000 | [diff] [blame] | 24 | std::unique_ptr<MCCodeEmitter> CE, raw_pwrite_stream &OS) |
| 25 | : MCWinCOFFStreamer(C, std::move(AB), std::move(CE), OS) {} |
Saleem Abdulrasool | a8b1f72 | 2014-04-27 03:48:12 +0000 | [diff] [blame] | 26 | |
Reid Kleckner | e52d1e6 | 2017-10-10 01:26:25 +0000 | [diff] [blame] | 27 | void EmitWinEHHandlerData(SMLoc Loc) override; |
Peter Collingbourne | 0da8630 | 2016-10-10 22:49:37 +0000 | [diff] [blame] | 28 | void EmitWindowsUnwindTables() override; |
Reid Kleckner | 9cdd4df | 2017-10-11 21:24:33 +0000 | [diff] [blame] | 29 | void EmitCVFPOData(const MCSymbol *ProcSym, SMLoc Loc) override; |
Saleem Abdulrasool | a8b1f72 | 2014-04-27 03:48:12 +0000 | [diff] [blame] | 30 | void FinishImpl() override; |
| 31 | }; |
| 32 | |
Reid Kleckner | e52d1e6 | 2017-10-10 01:26:25 +0000 | [diff] [blame] | 33 | void X86WinCOFFStreamer::EmitWinEHHandlerData(SMLoc Loc) { |
| 34 | MCStreamer::EmitWinEHHandlerData(Loc); |
Saleem Abdulrasool | a8b1f72 | 2014-04-27 03:48:12 +0000 | [diff] [blame] | 35 | |
| 36 | // We have to emit the unwind info now, because this directive |
| 37 | // actually switches to the .xdata section! |
Saleem Abdulrasool | 64a8cc7 | 2014-08-07 02:59:41 +0000 | [diff] [blame] | 38 | EHStreamer.EmitUnwindInfo(*this, getCurrentWinFrameInfo()); |
Saleem Abdulrasool | a8b1f72 | 2014-04-27 03:48:12 +0000 | [diff] [blame] | 39 | } |
| 40 | |
Saleem Abdulrasool | 4544c16 | 2014-08-03 18:51:26 +0000 | [diff] [blame] | 41 | void X86WinCOFFStreamer::EmitWindowsUnwindTables() { |
| 42 | if (!getNumWinFrameInfos()) |
| 43 | return; |
Saleem Abdulrasool | 64a8cc7 | 2014-08-07 02:59:41 +0000 | [diff] [blame] | 44 | EHStreamer.Emit(*this); |
Saleem Abdulrasool | 4544c16 | 2014-08-03 18:51:26 +0000 | [diff] [blame] | 45 | } |
| 46 | |
Reid Kleckner | 9cdd4df | 2017-10-11 21:24:33 +0000 | [diff] [blame] | 47 | void X86WinCOFFStreamer::EmitCVFPOData(const MCSymbol *ProcSym, SMLoc Loc) { |
| 48 | X86TargetStreamer *XTS = |
| 49 | static_cast<X86TargetStreamer *>(getTargetStreamer()); |
| 50 | XTS->emitFPOData(ProcSym, Loc); |
| 51 | } |
| 52 | |
Saleem Abdulrasool | a8b1f72 | 2014-04-27 03:48:12 +0000 | [diff] [blame] | 53 | void X86WinCOFFStreamer::FinishImpl() { |
Rafael Espindola | 7f4ccce | 2014-05-12 13:30:10 +0000 | [diff] [blame] | 54 | EmitFrames(nullptr); |
Saleem Abdulrasool | 3f3cefd | 2014-07-13 19:03:36 +0000 | [diff] [blame] | 55 | EmitWindowsUnwindTables(); |
Saleem Abdulrasool | a8b1f72 | 2014-04-27 03:48:12 +0000 | [diff] [blame] | 56 | |
| 57 | MCWinCOFFStreamer::FinishImpl(); |
| 58 | } |
Alexander Kornienko | f00654e | 2015-06-23 09:49:53 +0000 | [diff] [blame] | 59 | } |
Saleem Abdulrasool | a8b1f72 | 2014-04-27 03:48:12 +0000 | [diff] [blame] | 60 | |
Lang Hames | 02d3305 | 2017-10-11 01:57:21 +0000 | [diff] [blame] | 61 | MCStreamer *llvm::createX86WinCOFFStreamer(MCContext &C, |
| 62 | std::unique_ptr<MCAsmBackend> &&AB, |
Rafael Espindola | 5560a4c | 2015-04-14 22:14:34 +0000 | [diff] [blame] | 63 | raw_pwrite_stream &OS, |
Lang Hames | 2241ffa | 2017-10-11 23:34:47 +0000 | [diff] [blame] | 64 | std::unique_ptr<MCCodeEmitter> &&CE, |
| 65 | bool RelaxAll, |
David Majnemer | 03e2cc3 | 2015-12-21 22:09:27 +0000 | [diff] [blame] | 66 | bool IncrementalLinkerCompatible) { |
Lang Hames | 2241ffa | 2017-10-11 23:34:47 +0000 | [diff] [blame] | 67 | X86WinCOFFStreamer *S = |
| 68 | new X86WinCOFFStreamer(C, std::move(AB), std::move(CE), OS); |
Saleem Abdulrasool | a8b1f72 | 2014-04-27 03:48:12 +0000 | [diff] [blame] | 69 | S->getAssembler().setRelaxAll(RelaxAll); |
David Majnemer | 03e2cc3 | 2015-12-21 22:09:27 +0000 | [diff] [blame] | 70 | S->getAssembler().setIncrementalLinkerCompatible(IncrementalLinkerCompatible); |
Saleem Abdulrasool | a8b1f72 | 2014-04-27 03:48:12 +0000 | [diff] [blame] | 71 | return S; |
| 72 | } |
Saleem Abdulrasool | a8b1f72 | 2014-04-27 03:48:12 +0000 | [diff] [blame] | 73 | |