#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>
/* Bogus frame pointer? */
if (fp < (thread_base + sizeof(struct thread_info)) ||
- fp >= (thread_base + THREAD_SIZE))
+ fp > (thread_base + THREAD_SIZE - sizeof(struct sparc_stackf)))
break;
sf = (struct sparc_stackf *) fp;
regs = (struct pt_regs *) (sf + 1);
- if ((regs->magic & ~0x1ff) == PT_REGS_MAGIC) {
+ if (((unsigned long)regs <=
+ (thread_base + THREAD_SIZE - sizeof(*regs))) &&
+ (regs->magic & ~0x1ff) == PT_REGS_MAGIC) {
if (!(regs->tstate & TSTATE_PRIV))
break;
pc = regs->tpc;
trace->entries[trace->nr_entries++] = pc;
} while (trace->nr_entries < trace->max_entries);
}
+EXPORT_SYMBOL_GPL(save_stack_trace);