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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2014-12-29 15:47:28 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2014-12-29 15:47:28 +0000 |
| commit | 44eae72c405692c4d1339b7d344ff398af49e9df (patch) | |
| tree | e447aead00a608a877276de4e0d502f00bf69bd5 /llvm/lib | |
| parent | bed67f3adc0506f1ae1bdff71102477d61672393 (diff) | |
| download | bcm5719-llvm-44eae72c405692c4d1339b7d344ff398af49e9df.tar.gz bcm5719-llvm-44eae72c405692c4d1339b7d344ff398af49e9df.zip | |
Add segmented stack support for DragonFlyBSD.
Patch by Michael Neumann.
llvm-svn: 224936
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86FrameLowering.cpp | 14 | ||||
| -rw-r--r-- | llvm/lib/Target/X86/X86Subtarget.h | 1 |
2 files changed, 12 insertions, 3 deletions
diff --git a/llvm/lib/Target/X86/X86FrameLowering.cpp b/llvm/lib/Target/X86/X86FrameLowering.cpp index cf738f41cbd..c408fddf890 100644 --- a/llvm/lib/Target/X86/X86FrameLowering.cpp +++ b/llvm/lib/Target/X86/X86FrameLowering.cpp @@ -1476,8 +1476,9 @@ X86FrameLowering::adjustForSegmentedStacks(MachineFunction &MF) const { if (MF.getFunction()->isVarArg()) report_fatal_error("Segmented stacks do not support vararg functions."); - if (!STI.isTargetLinux() && !STI.isTargetDarwin() && - !STI.isTargetWin32() && !STI.isTargetWin64() && !STI.isTargetFreeBSD()) + if (!STI.isTargetLinux() && !STI.isTargetDarwin() && !STI.isTargetWin32() && + !STI.isTargetWin64() && !STI.isTargetFreeBSD() && + !STI.isTargetDragonFly()) report_fatal_error("Segmented stacks not supported on this platform."); // Eventually StackSize will be calculated by a link-time pass; which will @@ -1531,6 +1532,9 @@ X86FrameLowering::adjustForSegmentedStacks(MachineFunction &MF) const { } else if (STI.isTargetFreeBSD()) { TlsReg = X86::FS; TlsOffset = 0x18; + } else if (STI.isTargetDragonFly()) { + TlsReg = X86::FS; + TlsOffset = 0x20; // use tls_tcb.tcb_segstack } else { report_fatal_error("Segmented stacks not supported on this platform."); } @@ -1553,6 +1557,9 @@ X86FrameLowering::adjustForSegmentedStacks(MachineFunction &MF) const { } else if (STI.isTargetWin32()) { TlsReg = X86::FS; TlsOffset = 0x14; // pvArbitrary, reserved for application use + } else if (STI.isTargetDragonFly()) { + TlsReg = X86::FS; + TlsOffset = 0x10; // use tls_tcb.tcb_segstack } else if (STI.isTargetFreeBSD()) { report_fatal_error("Segmented stacks not supported on FreeBSD i386."); } else { @@ -1565,7 +1572,8 @@ X86FrameLowering::adjustForSegmentedStacks(MachineFunction &MF) const { BuildMI(checkMBB, DL, TII.get(X86::LEA32r), ScratchReg).addReg(X86::ESP) .addImm(1).addReg(0).addImm(-StackSize).addReg(0); - if (STI.isTargetLinux() || STI.isTargetWin32() || STI.isTargetWin64()) { + if (STI.isTargetLinux() || STI.isTargetWin32() || STI.isTargetWin64() || + STI.isTargetDragonFly()) { BuildMI(checkMBB, DL, TII.get(X86::CMP32rm)).addReg(ScratchReg) .addReg(0).addImm(0).addReg(0).addImm(TlsOffset).addReg(TlsReg); } else if (STI.isTargetDarwin()) { diff --git a/llvm/lib/Target/X86/X86Subtarget.h b/llvm/lib/Target/X86/X86Subtarget.h index 7533be5473f..754b5b92471 100644 --- a/llvm/lib/Target/X86/X86Subtarget.h +++ b/llvm/lib/Target/X86/X86Subtarget.h @@ -404,6 +404,7 @@ public: bool isTargetDarwin() const { return TargetTriple.isOSDarwin(); } bool isTargetFreeBSD() const { return TargetTriple.isOSFreeBSD(); } + bool isTargetDragonFly() const { return TargetTriple.isOSDragonFly(); } bool isTargetSolaris() const { return TargetTriple.isOSSolaris(); } bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); } |
