JDK-8028470 : PPC64 (part 214): linux: extend signal handler to catch SIGTRAP on ppc64.
  • Type: Bug
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: port-stage-ppc-aix
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: linux
  • CPU: ppc
  • Submitted: 2013-11-16
  • Updated: 2014-07-29
  • Resolved: 2013-11-18
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JDK 8 JDK 9 Other
8u20Fixed 9Fixed port-stage-ppc-aixFixed
Description
PPC has a compare-and-trap instruction that is used for NullChecks and RangeChecks.
If a check fails, SIGTRAP is raised and must be handled by the signal handler of the VM.
Add support for handling SIGTRAP on PPC64 to linux.

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This is preparation for PPC64 integration: http://openjdk.java.net/jeps/175
This and following ppc64 changes will go into staging repository first and tested there: http://hg.openjdk.java.net/ppc-aix-port/stage/

http://hg.openjdk.java.net/ppc-aix-port/jdk8/hotspot/file/338e318f1e12/ppc_patches/0214_linux-Extend_signal_handler_to_catch_SIGTRAP_on_ppc.patch