[LLVMbugs] [Bug 12304] New: ARM: invalid relocation type used for conditional BL instructions

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=12304

             Bug #: 12304
           Summary: ARM: invalid relocation type used for conditional BL
                    instructions
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: ARM
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: mans at mansr.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Created attachment 8233
  --> http://llvm.org/bugs/attachment.cgi?id=8233
Use proper fixup kind for conditional BL

Since r151571, BL instructions are given R_ARM_CALL relocations, which is not
allowed for conditional BL.  This results in the wrong instruction ending up in
linked executables/libs, leading to obscure runtime crashes.

The attached patch reverts conditional BL instructions to the old behaviour.

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