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
  21 static 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
  35 static 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_ */