diff options
Diffstat (limited to 'arch/um/kernel/syscall_user.c')
-rw-r--r-- | arch/um/kernel/syscall_user.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/um/kernel/syscall_user.c b/arch/um/kernel/syscall_user.c new file mode 100644 index 00000000000..01b711e00a8 --- /dev/null +++ b/arch/um/kernel/syscall_user.c @@ -0,0 +1,48 @@ +/* + * 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: + */ |