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sparc64: Make global reg dumping even more useful.

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Record one more level of stack frame program counter.

Particularly when lockdep and all sorts of spinlock debugging is
enabled, figuring out the caller of spin_lock() is difficult when the
cpu is stuck on the lock.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2008-07-30 21:57:59 -07:00
parent c9b23e0c30
commit 5afe27380b
3 changed files with 40 additions and 11 deletions
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8
arch/sparc/include/asm/ptrace_64.h
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@@ -134,9 +134,9 @@ struct global_reg_snapshot {
unsigned long tnpc;
unsigned long o7;
unsigned long i7;
unsigned long rpc;
struct thread_info *thread;
unsigned long pad1;
unsigned long pad2;
};
#define __ARCH_WANT_COMPAT_SYS_PTRACE
@@ -315,9 +315,9 @@ extern void __show_regs(struct pt_regs *);
#define GR_SNAP_TNPC 0x10
#define GR_SNAP_O7 0x18
#define GR_SNAP_I7 0x20
#define GR_SNAP_THREAD 0x28
#define GR_SNAP_PAD1 0x30
#define GR_SNAP_PAD2 0x38
#define GR_SNAP_RPC 0x28
#define GR_SNAP_THREAD 0x30
#define GR_SNAP_PAD1 0x38
#endif /* __KERNEL__ */