[Crash-utility] [PATCH v2 1/6] ppc64: fix bt for '-S' case
Passing '-S' option to 'bt' command was intended to specify the stack
pointer manually. But get_stack_frame() handling on ppc64 is ignoring
this option altogether. Fix it.
Signed-off-by: Hari Bathini <hbathini(a)linux.ibm.com>
---
* No changes in v2.
ppc64.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/ppc64.c b/ppc64.c
index 975caa5..0e1d867 100644
--- a/ppc64.c
+++ b/ppc64.c
@@ -2330,6 +2330,22 @@ ppc64_vmcore_stack_frame(struct bt_info *bt_in, ulong *nip, ulong
*ksp)
pt_regs = (struct ppc64_pt_regs *)bt_in->machdep;
if (!pt_regs || !pt_regs->gpr[1]) {
+ if (bt_in->hp) {
+ if (bt_in->hp->esp) {
+ *ksp = bt_in->hp->esp;
+ if (!bt_in->hp->eip) {
+ if (IS_KVADDR(*ksp)) {
+ readmem(*ksp+16, KVADDR, &unip, sizeof(ulong),
+ "Regs NIP value", FAULT_ON_ERROR);
+ *nip = unip;
+ }
+ } else
+ *nip = bt_in->hp->eip;
+
+ }
+ return TRUE;
+ }
+
/*
* Not collected regs. May be the corresponding CPU not
* responded to an IPI in case of KDump OR f/w has not
--
2.35.3