Thanks Dave.. once I build up sufficient frustration, I'll have a go at "fixing" this - jim On Mon, 2008-06-23 at 09:49 -0400, Dave Anderson wrote: > James Washer wrote: > > I suspect crash is simply using a standard disassembler, but it's > > driving me nuts that I get output like: > > 0xc0000000000cbc18 <.do_sys_open+0xa8>: xori r29,r29,16384 > > > > rather than hex "immediates"... Is there anyway to alter this behavior? > > > > > > thanks > > - jim > > Hi Jim, > > Crash uses the gdb disassembly code, although each architecture has a > filtering routine that re-translates the <function-name+offset> > at the beginning (sometimes gdb does it incorrectly), and also > displays the offset value depending upon the hex/dec setting > you've got in effect at the time. Other arches also add a > <function-name+offset> at the end of a line when the gdb > disassembly only displays "call 0xaddress". > > But to answer your question, with respect to intermediate > values, the x86, x86_64, and I think the ia64, all show > intermediates in hexadecimal. Kind of strange that the > ppc64 does it differently. I do tinker with gdb's output-radix > and output-format internal variables, but they don't affect > disassembly output at all. > > Anyway, I don't know of any way to change gdb's behaviour > although there very well may be an internal variable that > controls it. The real answer can be found by tracking > the combination of the gdb-6.1/opcodes/ppc-opcodes.c, > gdb-6.1/opcodes/ppc-opc.c, gdb-6.1/gdb/disasm.c and > gdb-6.1/printcmd.c code -- a PITA to follow -- but the real > answer is in there somewhere. I do note that the address+offset > output is hardwired to print decimal in print_address_symbolic() > function in gdb-6.1/gdb/printcmd.c, but I haven't tracked down > where the intermediates get printed. If that were determined, > then it seems that it could be tinkered with based upon > crash's hex/dec setting. > > Dave > > -- > Crash-utility mailing list > Crash-utility@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/crash-utility > -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility
