[Webkit-unassigned] [Bug 56088] New: cti_vm_throw gets kicked out by gcc 4.6 -flto

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=56088

           Summary: cti_vm_throw gets kicked out by gcc 4.6 -flto
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: bero at arklinux.org


Building WebKit with gcc 4.6 with -flto enabled results in a linking error:
/tmp/ccaOGKiM.ltrans0.ltrans.o: In function `ctiVMThrowTrampoline':
ccaOGKiM.ltrans0.o:(.text+0x4c): undefined reference to `cti_vm_throw'

The gcc guys say this is not a bug in gcc, since cti_vm_throw is called only by asm code, it needs to be marked with __attribute__((used))

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