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Diffstat (limited to 'arch/um/kernel/syscall_user.c')
-rw-r--r--arch/um/kernel/syscall_user.c48
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 000000000000..01b711e00a85
--- /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:
+ */