/* SPDX-License-Identifier: GPL-2.0-only */ /* * Trampoline to trace irqs off. (otherwise CALLER_ADDR1 might crash) * Copyright 2008 by Steven Rostedt, Red Hat, Inc * (inspired by Andi Kleen's thunk_64.S) */ #include <linux/linkage.h> #include <asm/asm.h> #include <asm/export.h> /* put return address in eax (arg1) */ .macro THUNK name, func, put_ret_addr_in_eax=0 .globl \name \name: pushl %eax pushl %ecx pushl %edx .if \put_ret_addr_in_eax /* Place EIP in the arg1 */ movl 3*4(%esp), %eax .endif call \func popl %edx popl %ecx popl %eax ret _ASM_NOKPROBE(\name) .endm #ifdef [31mCONFIG_TRACE_IRQFLAGS[0m THUNK trace_hardirqs_on_thunk,trace_hardirqs_on_caller,1 THUNK trace_hardirqs_off_thunk,trace_hardirqs_off_caller,1 #endif #ifdef [31mCONFIG_PREEMPTION[0m THUNK ___preempt_schedule, preempt_schedule THUNK ___preempt_schedule_notrace, preempt_schedule_notrace EXPORT_SYMBOL(___preempt_schedule) EXPORT_SYMBOL(___preempt_schedule_notrace) #endif |