diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86FrameLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86FrameLowering.cpp | 14 |
1 files changed, 11 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()) { |
