<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Alex already answered your question.<div class=""><br class=""></div><div class="">Q.<br class=""><div class=""><div><blockquote type="cite" class=""><div class="">On Jul 28, 2015, at 1:46 AM, Johnny Bory <<a href="mailto:johnny.bory.12@gmail.com" class="">johnny.bory.12@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hi,<br class=""><br class="">i have got some troubles while trying to instrumentate a indirect call instruction. <br class="">Basically, every time i run into a CALL64r i would like to have this situation:<br class=""><font face="monospace, monospace" class=""> ------<br class=""> | .... |<br class=""> | CMP |</font><div class=""><font face="monospace, monospace" class=""> | JE |</font></div><div class=""><font face="monospace, monospace" class=""> ------</font></div><div class=""><font face="monospace, monospace" class=""> | |</font></div><div class=""><font face="monospace, monospace" class=""> --- -----</font></div><div class=""><font face="monospace, monospace" class=""> | |</font></div><div class=""><font face="monospace, monospace" class=""> ---- ---- </font></div><div class=""><font face="monospace, monospace" class=""> |EXIT| |CALL|</font></div><div class=""><font face="monospace, monospace" class=""> ---- |....|</font></div><div class=""><font face="monospace, monospace" class=""> ----</font><br class=""><font face="arial, helvetica, sans-serif" class="">So i do a splice, fix up successors and predecessors, but since the call implicitly uses some register the compilation fails with a lot of this:<br class=""><br class=""> *** Bad machine code: Using an undefined physical register ***</font></div><div class=""><font face="arial, helvetica, sans-serif" class="">- function: parse_and_dump_tv_tag</font></div><div class=""><font face="arial, helvetica, sans-serif" class="">- basic block: BB#126 (null) (0x6127658)</font></div><div class=""><font face="arial, helvetica, sans-serif" class="">- instruction: CALL64r %vreg41, <regmask>, %RSP<imp-use>, %EDI<imp-use>, %RSI<imp-use>, %RDX<imp-use>, %RCX<imp-use>, %R8<imp-use>, %R9D<imp-use>, %AL<imp-use>, %RSP<imp-def>, %EAX<imp-def>; GR64:%vreg41<br class=""><br class="">How can i get rid of this errors?<br class=""><br class="">Thank you very much,<br class=""><br class="">-- Jon</font></div></div>
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