On 1/30/19 10:00 AM, David Griffiths wrote: > I'm not sure this works though for the frame at the top of the stack. > The pushing of the registers that you mention appears to take place in > the updateRegisterMap method which is called when getting the sender. > At the top of the stack the register will be live and not saved > anywhere?
No the pushing of the register happens in generated code. > Whatever, I'm seeing a NPE caused by a location that has > WHERE_IN_REGISTER and a register number of 16 that doesn't have > locationValid set in the map. If I modify createStackValue to check > valueAddr being null then it avoids the NPE and getLocals then returns > all the locals except for the one held in a register (the other ones > are on the stack). Not sure what a register number of 16 equates to on > x86, is that supposed to correspond to "not set" or something? You're not helping. Are you sure you've got an up-to-date HotSpot checkout? You're not falling over bug 8217407? -- Andrew Haley Java Platform Lead Engineer Red Hat UK Ltd. <https://www.redhat.com> EAC8 43EB D3EF DB98 CC77 2FAD A5CD 6035 332F A671
