acrn-kernel/arch/um/kernel/syscall_user.c

49 lines
1.1 KiB
C

/*
* Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#include <stdlib.h>
#include <sys/time.h>
#include "kern_util.h"
#include "syscall_user.h"
struct {
int syscall;
int pid;
long result;
struct timeval start;
struct timeval end;
} syscall_record[1024];
int record_syscall_start(int syscall)
{
int max, index;
max = sizeof(syscall_record)/sizeof(syscall_record[0]);
index = next_syscall_index(max);
syscall_record[index].syscall = syscall;
syscall_record[index].pid = current_pid();
syscall_record[index].result = 0xdeadbeef;
gettimeofday(&syscall_record[index].start, NULL);
return(index);
}
void record_syscall_end(int index, long result)
{
syscall_record[index].result = result;
gettimeofday(&syscall_record[index].end, NULL);
}
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/