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powerpc: Print trap frame address in ddb backtraces

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Registers visible from 'show reg' don't always match the registers from the
offending trap frame.  Knowing the frame address lets one examine the
registers manually.

MFC after:	1 week
This commit is contained in:
Justin Hibbits 2019-03-09 03:24:39 +00:00
parent 66306e6acd
commit 093f7de620
1 changed files with 1 additions and 1 deletions
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2
sys/powerpc/powerpc/db_trace.c
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@ -277,7 +277,7 @@ db_backtrace(struct thread *td, db_addr_t fp, int count)
if (tf->exc == EXC_DSI)
db_printf(" sr=%#x",
(uint32_t)tf->cpu.aim.dsisr);
db_printf("\n");
db_printf(" frame=%p\n", tf);
stackframe = (db_addr_t) tf->fixreg[1];
if (kernel_only && (tf->srr1 & PSL_PR))
break;