tracing: Map syscall name to number

[pandora-kernel.git] / arch / x86 / kernel / ftrace.c

diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 8e96634..afb31d7 100644 (file)
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -500,6 +500,22 @@ struct syscall_metadata *syscall_nr_to_meta(int nr)
        return syscalls_metadata[nr];
 }
 
+int syscall_name_to_nr(char *name)
+{
+       int i;
+
+       if (!syscalls_metadata)
+               return -1;
+
+       for (i = 0; i < FTRACE_SYSCALL_MAX; i++) {
+               if (syscalls_metadata[i]) {
+                       if (!strcmp(syscalls_metadata[i]->name, name))
+                               return i;
+               }
+       }
+       return -1;
+}
+
 void arch_init_ftrace_syscalls(void)
 {
        int i;