[LLVMbugs] [Bug 8632] New: Clang integrated-as doesn't support .cfi_startproc, .cfi_signal_frame, etc. ASM directives

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Tue Nov 16 23:32:50 CST 2010


http://llvm.org/bugs/show_bug.cgi?id=8632

           Summary: Clang integrated-as doesn't support .cfi_startproc,
                    .cfi_signal_frame, etc. ASM directives
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: LLVM Codegen
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: chandlerc at gmail.com
                CC: rafael.espindola at gmail.com, llvmbugs at cs.uiuc.edu


With .cfi directives writing assembly with proper unwind descriptors is so much
easier.
Unfortunately, clang doesn't support any of that:

warning: ignoring directive for now
  .cfi_startproc

http://sourceware.org/binutils/docs/as/CFI-directives.html

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