1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef _TRACE_SYSCALL_H 3*4882a593Smuzhiyun #define _TRACE_SYSCALL_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <linux/tracepoint.h> 6*4882a593Smuzhiyun #include <linux/unistd.h> 7*4882a593Smuzhiyun #include <linux/trace_events.h> 8*4882a593Smuzhiyun #include <linux/thread_info.h> 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include <asm/ptrace.h> 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun /* 14*4882a593Smuzhiyun * A syscall entry in the ftrace syscalls array. 15*4882a593Smuzhiyun * 16*4882a593Smuzhiyun * @name: name of the syscall 17*4882a593Smuzhiyun * @syscall_nr: number of the syscall 18*4882a593Smuzhiyun * @nb_args: number of parameters it takes 19*4882a593Smuzhiyun * @types: list of types as strings 20*4882a593Smuzhiyun * @args: list of args as strings (args[i] matches types[i]) 21*4882a593Smuzhiyun * @enter_fields: list of fields for syscall_enter trace event 22*4882a593Smuzhiyun * @enter_event: associated syscall_enter trace event 23*4882a593Smuzhiyun * @exit_event: associated syscall_exit trace event 24*4882a593Smuzhiyun */ 25*4882a593Smuzhiyun struct syscall_metadata { 26*4882a593Smuzhiyun const char *name; 27*4882a593Smuzhiyun int syscall_nr; 28*4882a593Smuzhiyun int nb_args; 29*4882a593Smuzhiyun const char **types; 30*4882a593Smuzhiyun const char **args; 31*4882a593Smuzhiyun struct list_head enter_fields; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun struct trace_event_call *enter_event; 34*4882a593Smuzhiyun struct trace_event_call *exit_event; 35*4882a593Smuzhiyun }; 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun #if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS) syscall_tracepoint_update(struct task_struct * p)38*4882a593Smuzhiyunstatic inline void syscall_tracepoint_update(struct task_struct *p) 39*4882a593Smuzhiyun { 40*4882a593Smuzhiyun if (test_thread_flag(TIF_SYSCALL_TRACEPOINT)) 41*4882a593Smuzhiyun set_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT); 42*4882a593Smuzhiyun else 43*4882a593Smuzhiyun clear_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT); 44*4882a593Smuzhiyun } 45*4882a593Smuzhiyun #else syscall_tracepoint_update(struct task_struct * p)46*4882a593Smuzhiyunstatic inline void syscall_tracepoint_update(struct task_struct *p) 47*4882a593Smuzhiyun { 48*4882a593Smuzhiyun } 49*4882a593Smuzhiyun #endif 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun #endif /* _TRACE_SYSCALL_H */ 52