Red Hat Bugzilla – Bug 230000
GDB does not disassemble DFP / Power6 instructions
Last modified: 2007-11-30 17:11:57 EST
+++ This bug was initially created as a clone of Bug #227592 +++ GDB 6.6 is the first official release to include support for Power6's DFP (Decimal Floating Point) instructions. DFP is an important feature for Power6 HW. IBM Confidential: no ----- Additional Comments From thiagoju@br.ibm.com (prefers email at bauerman@br.ibm.com) 2007-01-29 06:15 EDT ------- I just attached the testcase for the feature. ----- Additional Comments From thiagoju@br.ibm.com (prefers email at bauerman@br.ibm.com) 2007-01-31 19:37 EDT ------- Change disassembler to decode any ppc instruction Hi, This is the fix I mentioned in comment #6. It is needed even in GDB 6.6 to make GDB disassemble Power6 DFP instructions. With this fix, the attached testcase passes. ----- Additional Comments From thiagoju@br.ibm.com (prefers email at bauerman@br.ibm.com) 2007-02-01 05:59 EDT ------- Sorry, I mentioned the wrong URL to the patch submission: http://www.sourceware.org/ml/gdb-patches/2007-02/msg00000.html ----- Additional Comments From thiagoju@br.ibm.com (prefers email at bauerman@br.ibm.com) 2007-02-09 14:07 EDT ------- The patch was accepted upstream yesterday: http://www.sourceware.org/ml/gdb-patches/2007-02/msg00091.html
Created attachment 148760 [details] Shell testcase from bauerman@br.ibm.com, requires gcc-4.2/4.3+
* Sun Feb 25 2007 Jan Kratochvil <jan.kratochvil@redhat.com> - 6.6-4 - Backport + testcase for PPC Power6/DFP instructions disassembly (BZ 230000). Provided only a simplified testcase not requiring GCC currently not yet present even in RawHide.
lan Modra recently made this fix which is necessary to correctly disassemble DFP instructions. Here's the submission to upstream: http://sources.redhat.com/ml/binutils/2007-04/msg00249.html
Comment 3 fix committed to Rawhide: * Sat Apr 28 2007 Jan Kratochvil <jan.kratochvil@redhat.com> - 6.6-14 - Fixup for the PPC Power6/DFP instructions disassembly (BZ 230000).