arch/um/kernel/syscall_user.c

   1 /*
   2  * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
   3  * Licensed under the GPL
   4  */
   5
   6 #include <stdlib.h>
   7 #include <sys/time.h>
   8 #include "kern_util.h"
   9 #include "syscall_user.h"
  10
  11 struct {
  12         int syscall;
  13         int pid;
  14         long result;
  15         struct timeval start;
  16         struct timeval end;
  17 } syscall_record[1024];
  18
  19 int record_syscall_start(int syscall)
  20 {
  21         int max, index;
  22
  23         max = sizeof(syscall_record)/sizeof(syscall_record[0]);
  24         index = next_syscall_index(max);
  25
  26         syscall_record[index].syscall = syscall;
  27         syscall_record[index].pid = current_pid();
  28         syscall_record[index].result = 0xdeadbeef;
  29         gettimeofday(&syscall_record[index].start, NULL);
  30         return(index);
  31 }
  32
  33 void record_syscall_end(int index, long result)
  34 {
  35         syscall_record[index].result = result;
  36         gettimeofday(&syscall_record[index].end, NULL);
  37 }
  38
  39 /*
  40  * Overrides for Emacs so that we follow Linus's tabbing style.
  41  * Emacs will notice this stuff at the end of the file and automatically
  42  * adjust the settings for this buffer only.  This must remain at the end
  43  * of the file.
  44  * ---------------------------------------------------------------------------
  45  * Local variables:
  46  * c-file-style: "linux"
  47  * End:
  48  */