[Crash-utility] [PATCH v2 4/4] [ppc] Enable stack trace analysis for compressed Kdump
In both Kdump and Compressed Kdump cores, we have the NT_PRSTATUS
notes available for the active tasks and we use them for getting the
stack trace. So reuse the function for compressed Kdump.
Signed-off-by: Suzuki K. Poulose <suzuki(a)in.ibm.com>
---
ppc.c | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/ppc.c b/ppc.c
index 78c9178..9e704d0 100755
--- a/ppc.c
+++ b/ppc.c
@@ -1193,8 +1193,11 @@ ppc_dumpfile_stack_frame(struct bt_info *bt, ulong *getpc, ulong
*getsp)
{
struct syment *sp;
- /* For KDUMP get the SP, PC from pt_regs stored in the core */
- if (pc->flags & KDUMP) {
+ /*
+ * For KDUMP and compressed KDUMP get the SP, PC from pt_regs
+ * read from the Elf Note.
+ */
+ if (ELF_NOTES_VALID()) {
ppc_kdump_stack_frame(bt, getpc, getsp);
return;
}