[LLVMbugs] [Bug 10590] New: Expanded 'naked' function support and interrupt calling convention

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu Aug 4 13:07:19 PDT 2011


           Summary: Expanded 'naked' function support and interrupt
                    calling convention
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: LLVM Codegen
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: m_kuklinski at stackheap.com
                CC: llvmbugs at cs.uiuc.edu

It would be useful to have some sort of LocalSize symbol exported for naked
functions, which would be value-set with the stack size required of the
function. This would allow the stack pointer to be manually set within inline
assembly, so that naked functions could be used for C / C++.

It would also be useful to have the interrupt calling convention supported on
x86 and x86-64 functions.

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