unsigned long print_context_stack(struct thread_info *tinfo, unsigned long *stack, unsigned long bp, const struct stacktrace_ops *ops, void *data, unsigned long *end, int *graph) { struct stack_frame *frame = (struct stack_frame *)bp; while (valid_stack_ptr(tinfo, stack, sizeof(*stack), end)) { unsigned long addr; addr = *stack; if (__kernel_text_address(addr)) { if ((unsigned long) stack == bp + sizeof(long)) { ops->address(data, addr, 1); frame = frame->next_frame; bp = (unsigned long) frame; } else { ops->address(data, addr, 0); } print_ftrace_graph_addr(addr, data, ops, tinfo, graph); } stack++; } return bp; }
unsigned long print_context_stack_bp(struct thread_info *tinfo, unsigned long *stack, unsigned long bp, const struct stacktrace_ops *ops, void *data, unsigned long *end, int *graph) { struct stack_frame *frame = (struct stack_frame *)bp; unsigned long *ret_addr = &frame->return_address; while (valid_stack_ptr(tinfo, ret_addr, sizeof(*ret_addr), end)) { unsigned long addr = *ret_addr; if (__kernel_text_address(addr)) { ops->address(data, addr, 1); frame = frame->next_frame; ret_addr = &frame->return_address; print_ftrace_graph_addr(addr, data, ops, tinfo, graph); } } return (unsigned long)frame; }
void stack_reader_dump(struct task_struct *task, struct pt_regs *regs, unsigned long *sp, const struct stacktrace_ops *ops, void *data) { struct thread_info *context; int graph = 0; context = (struct thread_info *) ((unsigned long)sp & (~(THREAD_SIZE - 1))); while (!kstack_end(sp)) { unsigned long addr = *sp++; if (__kernel_text_address(addr)) { ops->address(data, addr, 1); print_ftrace_graph_addr(addr, data, ops, context, &graph); } } }