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 "exec/user/abitypes.h"
  14 #include "gdbstub/user.h"
  15 #include "qemu/plugin.h"
  16 #include "trace/trace-root.h"
  17
  18 /*
  19  * These helpers just provide a common place for the various
  20  * subsystems that want to track syscalls to put their hooks in. We
  21  * could potentially unify the -strace code here as well.
  22  */
  23
  24 static inline void record_syscall_start(CPUState *cpu, int num,
  25                                         abi_long arg1, abi_long arg2,
  26                                         abi_long arg3, abi_long arg4,
  27                                         abi_long arg5, abi_long arg6,
  28                                         abi_long arg7, abi_long arg8)
  29 {
  30     qemu_plugin_vcpu_syscall(cpu, num,
  31                              arg1, arg2, arg3, arg4,
  32                              arg5, arg6, arg7, arg8);
  33     gdb_syscall_entry(cpu, num);
  34 }
  35
  36 static inline void record_syscall_return(CPUState *cpu, int num, abi_long ret)
  37 {
  38     qemu_plugin_vcpu_syscall_ret(cpu, num, ret);
  39     gdb_syscall_return(cpu, num);
  40 }
  41
  42
  43 #endif /* SYSCALL_TRACE_H */