LXR qemu/include/user/syscall-trace.h

   1/*
   2 * Common System Call Tracing Wrappers for *-user
   3 *
   4 * Copyright (c) 2019 Linaro
   5 * Written by Alex Bennée <alex.bennee@linaro.org>
   6 *
   7 * SPDX-License-Identifier: GPL-2.0-or-later
   8 */
   9
  10#ifndef SYSCALL_TRACE_H
  11#define SYSCALL_TRACE_H
  12
  13#include "trace/trace-root.h"
  14
  15/*
  16 * These helpers just provide a common place for the various
  17 * subsystems that want to track syscalls to put their hooks in. We
  18 * could potentially unify the -strace code here as well.
  19 */
  20
  21static inline void record_syscall_start(void *cpu, int num,
  22                                        abi_long arg1, abi_long arg2,
  23                                        abi_long arg3, abi_long arg4,
  24                                        abi_long arg5, abi_long arg6,
  25                                        abi_long arg7, abi_long arg8)
  26{
  27    trace_guest_user_syscall(cpu, num,
  28                             arg1, arg2, arg3, arg4,
  29                             arg5, arg6, arg7, arg8);
  30    qemu_plugin_vcpu_syscall(cpu, num,
  31                             arg1, arg2, arg3, arg4,
  32                             arg5, arg6, arg7, arg8);
  33}
  34
  35static inline void record_syscall_return(void *cpu, int num, abi_long ret)
  36{
  37    trace_guest_user_syscall_ret(cpu, num, ret);
  38    qemu_plugin_vcpu_syscall_ret(cpu, num, ret);
  39}
  40
  41
  42#endif /* SYSCALL_TRACE_H */
  43