Helper, check for the existence of local RKMS
[akaros.git] / kern / include / syscall.h
index 3b8240b..223133f 100644 (file)
@@ -4,11 +4,79 @@
 # error "This is ROS kernel header; user programs should not #include it"
 #endif
 
-#include <ros/syscall.h>
-#include <env.h>
+#include <ros/common.h>
+#include <process.h>
+
+#define SYSTRACE_ON                                    0x01
+#define SYSTRACE_LOUD                          0x02
+#define SYSTRACE_ALLPROC                       0x04
+
+#define MAX_NUM_TRACED                         10
+#define MAX_SYSTRACES                          1024
+
+#define SYSCALL_STRLEN                         128
+
+#define MAX_ASRC_BATCH                         10
+
+#define SYSTR_RECORD_SZ                                256
+#define SYSTR_BUF_SZ                           PGSIZE
+#define SYSTR_PRETTY_BUF_SZ                    (SYSTR_BUF_SZ -                            \
+                                     sizeof(struct systrace_record))
+struct systrace_record {
+       struct systrace_record_anon {
+               uint64_t                start_timestamp, end_timestamp;
+               uintreg_t               syscallno;
+               uintreg_t               arg0;
+               uintreg_t               arg1;
+               uintreg_t               arg2;
+               uintreg_t               arg3;
+               uintreg_t               arg4;
+               uintreg_t               arg5;
+               uintreg_t               retval;
+               int                             pid;
+               uint32_t                coreid;
+               uint32_t                vcoreid;
+               char                    *pretty_buf;
+               uint8_t                 datalen;
+       };
+       uint8_t                 data[SYSTR_RECORD_SZ - sizeof(struct systrace_record_anon)];
+};
+
+/* Syscall table */
+typedef intreg_t (*syscall_t)(struct proc *, uintreg_t, uintreg_t, uintreg_t,
+                              uintreg_t, uintreg_t, uintreg_t);
+struct sys_table_entry {
+       syscall_t call;
+       char *name;
+};
+extern const struct sys_table_entry syscall_table[];
+extern const int max_syscall;
+/* Syscall invocation */
+void prep_syscalls(struct proc *p, struct syscall *sysc, unsigned int nr_calls);
+void run_local_syscall(struct syscall *sysc);
+intreg_t syscall(struct proc *p, uintreg_t sc_num, uintreg_t a0, uintreg_t a1,
+                 uintreg_t a2, uintreg_t a3, uintreg_t a4, uintreg_t a5);
+void set_errno(int errno);
+int get_errno(void);
+void unset_errno(void);
+void set_errstr(char *errstr, ...);
+char *current_errstr(void);
+struct errbuf *get_cur_errbuf(void);
+void set_cur_errbuf(struct errbuf *ebuf);
+char *get_cur_genbuf(void);
+void __signal_syscall(struct syscall *sysc, struct proc *p);
+
+/* Tracing functions */
+void systrace_start(bool silent);
+int systrace_trace_pid(struct proc *p);
+void systrace_stop(void);
+int systrace_reg(bool all, struct proc *p);
+int systrace_dereg(bool all, struct proc *p);
+void systrace_print(bool all, struct proc *p);
+void systrace_clear_buffer(void);
+
+/* Utility */
+bool syscall_uses_fd(struct syscall *sysc, int fd);
+void print_sysc(struct proc *p, struct syscall *sysc);
 
-int32_t (SYNCHRONOUS syscall)(env_t* e, uint32_t num, uint32_t a1, uint32_t a2,
-                              uint32_t a3, uint32_t a4, uint32_t a5);
-int32_t syscall_async(env_t* e, syscall_req_t *syscall);
-int32_t process_generic_syscalls(env_t* e, uint32_t max);
 #endif /* !ROS_KERN_SYSCALL_H */