65 static struct dwarf_reg *dwarf_frame_alloc_reg(struct dwarf_frame *frame,  in dwarf_frame_alloc_reg()  argument
84 	list_add(&reg->link, &frame->reg_list);  in dwarf_frame_alloc_reg()
89 static void dwarf_frame_free_regs(struct dwarf_frame *frame)  in dwarf_frame_free_regs()  argument
93 	list_for_each_entry_safe(reg, n, &frame->reg_list, link) {  in dwarf_frame_free_regs()
107 static struct dwarf_reg *dwarf_frame_reg(struct dwarf_frame *frame,  in dwarf_frame_reg()  argument
112 	list_for_each_entry(reg, &frame->reg_list, link) {  in dwarf_frame_reg()
403 				   struct dwarf_frame *frame,  in dwarf_cfa_execute_insns()  argument
413 	while (current_insn < insn_end && frame->pc <= pc) {  in dwarf_cfa_execute_insns()
424 			frame->pc += delta;  in dwarf_cfa_execute_insns()
432 			regp = dwarf_frame_alloc_reg(frame, reg);  in dwarf_cfa_execute_insns()
452 			frame->pc += delta * cie->code_alignment_factor;  in dwarf_cfa_execute_insns()
457 			frame->pc += delta * cie->code_alignment_factor;  in dwarf_cfa_execute_insns()
462 			frame->pc += delta * cie->code_alignment_factor;  in dwarf_cfa_execute_insns()
478 			regp = dwarf_frame_alloc_reg(frame, reg);  in dwarf_cfa_execute_insns()
483 						   &frame->cfa_register);  in dwarf_cfa_execute_insns()
486 						   &frame->cfa_offset);  in dwarf_cfa_execute_insns()
489 			frame->flags |= DWARF_FRAME_CFA_REG_OFFSET;  in dwarf_cfa_execute_insns()
493 						   &frame->cfa_register);  in dwarf_cfa_execute_insns()
495 			frame->flags |= DWARF_FRAME_CFA_REG_OFFSET;  in dwarf_cfa_execute_insns()
500 			frame->cfa_offset = offset;  in dwarf_cfa_execute_insns()
506 			frame->cfa_expr = current_insn;  in dwarf_cfa_execute_insns()
507 			frame->cfa_expr_len = expr_len;  in dwarf_cfa_execute_insns()
510 			frame->flags |= DWARF_FRAME_CFA_REG_EXP;  in dwarf_cfa_execute_insns()
518 			regp = dwarf_frame_alloc_reg(frame, reg);  in dwarf_cfa_execute_insns()
527 			regp = dwarf_frame_alloc_reg(frame, reg);  in dwarf_cfa_execute_insns()
541 			regp = dwarf_frame_alloc_reg(frame, reg);  in dwarf_cfa_execute_insns()
559 void dwarf_free_frame(struct dwarf_frame *frame)  in dwarf_free_frame()  argument
561 	dwarf_frame_free_regs(frame);  in dwarf_free_frame()
562 	mempool_free(frame, dwarf_frame_pool);  in dwarf_free_frame()
580 	struct dwarf_frame *frame;  in dwarf_unwind_stack()  local
625 	frame = mempool_alloc(dwarf_frame_pool, GFP_ATOMIC);  in dwarf_unwind_stack()
626 	if (!frame) {  in dwarf_unwind_stack()
631 	INIT_LIST_HEAD(&frame->reg_list);  in dwarf_unwind_stack()
632 	frame->flags = 0;  in dwarf_unwind_stack()
633 	frame->prev = prev;  in dwarf_unwind_stack()
634 	frame->return_addr = 0;  in dwarf_unwind_stack()
658 	frame->pc = fde->initial_location;  in dwarf_unwind_stack()
663 				frame, pc);  in dwarf_unwind_stack()
667 				fde, frame, pc);  in dwarf_unwind_stack()
670 	switch (frame->flags) {  in dwarf_unwind_stack()
673 			reg = dwarf_frame_reg(prev, frame->cfa_register);  in dwarf_unwind_stack()
678 			frame->cfa = __raw_readl(addr);  in dwarf_unwind_stack()
688 			frame->cfa = dwarf_read_arch_reg(frame->cfa_register);  in dwarf_unwind_stack()
691 		frame->cfa += frame->cfa_offset;  in dwarf_unwind_stack()
697 	reg = dwarf_frame_reg(frame, DWARF_ARCH_RA_REG);  in dwarf_unwind_stack()
709 	addr = frame->cfa + reg->addr;  in dwarf_unwind_stack()
710 	frame->return_addr = __raw_readl(addr);  in dwarf_unwind_stack()
728 		frame->return_addr = 0;  in dwarf_unwind_stack()
730 	return frame;  in dwarf_unwind_stack()
733 	dwarf_free_frame(frame);  in dwarf_unwind_stack()
965 	struct dwarf_frame *frame, *_frame;  in dwarf_unwinder_dump()  local
972 		frame = dwarf_unwind_stack(return_addr, _frame);  in dwarf_unwinder_dump()
977 		_frame = frame;  in dwarf_unwinder_dump()
979 		if (!frame || !frame->return_addr)  in dwarf_unwinder_dump()
982 		return_addr = frame->return_addr;  in dwarf_unwinder_dump()
986 	if (frame)  in dwarf_unwinder_dump()
987 		dwarf_free_frame(frame);  in dwarf_unwinder_dump()