[LLVMbugs] [Bug 16145] New: Missing -mno-tls-direct-seg-refs

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=16145

            Bug ID: 16145
           Summary: Missing -mno-tls-direct-seg-refs
           Product: clang
           Version: 3.2
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: nruslan_devel at yahoo.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

This option is missing for clang but present for gcc. It may be needed under
some circumstances (e.g., Xen virtualized guests to avoid overheads). It forces
indirection, i.e. loads fs:tcb,%reg and then accesses TLS data through %reg.

gcc supports it for both x86 and x86-64

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20130526/b61728d9/attachment.html>