diff options
Diffstat (limited to 'arch/sparc64/kernel/stacktrace.c')
| -rw-r--r-- | arch/sparc64/kernel/stacktrace.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/sparc64/kernel/stacktrace.c b/arch/sparc64/kernel/stacktrace.c index c73ce3f4197..4e21d4a57d3 100644 --- a/arch/sparc64/kernel/stacktrace.c +++ b/arch/sparc64/kernel/stacktrace.c @@ -1,13 +1,16 @@ #include <linux/sched.h> #include <linux/stacktrace.h> #include <linux/thread_info.h> +#include <linux/module.h> #include <asm/ptrace.h> #include <asm/stacktrace.h> +#include "kstack.h" + void save_stack_trace(struct stack_trace *trace) { - unsigned long ksp, fp, thread_base; struct thread_info *tp = task_thread_info(current); + unsigned long ksp, fp; stack_trace_flush(); @@ -17,21 +20,18 @@ void save_stack_trace(struct stack_trace *trace) ); fp = ksp + STACK_BIAS; - thread_base = (unsigned long) tp; do { struct sparc_stackf *sf; struct pt_regs *regs; unsigned long pc; - /* Bogus frame pointer? */ - if (fp < (thread_base + sizeof(struct thread_info)) || - fp >= (thread_base + THREAD_SIZE)) + if (!kstack_valid(tp, fp)) break; sf = (struct sparc_stackf *) fp; regs = (struct pt_regs *) (sf + 1); - if ((regs->magic & ~0x1ff) == PT_REGS_MAGIC) { + if (kstack_is_trap_frame(tp, regs)) { if (!(regs->tstate & TSTATE_PRIV)) break; pc = regs->tpc; @@ -47,3 +47,4 @@ void save_stack_trace(struct stack_trace *trace) trace->entries[trace->nr_entries++] = pc; } while (trace->nr_entries < trace->max_entries); } +EXPORT_SYMBOL_GPL(save_stack_trace); |