sh: ftrace: Fix up syscall tracing build.

Syscall tracing metadata was shuffled around, update accordingly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

diff --git a/arch/sh/kernel/ftrace.c b/arch/sh/kernel/ftrace.c
index b6f41c1..a48cded 100644 (file)
--- a/arch/sh/kernel/ftrace.c
+++ b/arch/sh/kernel/ftrace.c
@@ -401,82 +401,10 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
 
 #ifdef CONFIG_FTRACE_SYSCALLS
-
-extern unsigned long __start_syscalls_metadata[];
-extern unsigned long __stop_syscalls_metadata[];
 extern unsigned long *sys_call_table;
 
-static struct syscall_metadata **syscalls_metadata;
-
-static struct syscall_metadata *find_syscall_meta(unsigned long *syscall)
-{
-       struct syscall_metadata *start;
-       struct syscall_metadata *stop;
-       char str[KSYM_SYMBOL_LEN];
-
-
-       start = (struct syscall_metadata *)__start_syscalls_metadata;
-       stop = (struct syscall_metadata *)__stop_syscalls_metadata;
-       kallsyms_lookup((unsigned long) syscall, NULL, NULL, NULL, str);
-
-       for ( ; start < stop; start++) {
-               if (start->name && !strcmp(start->name, str))
-                       return start;
-       }
-
-       return NULL;
-}
-
-struct syscall_metadata *syscall_nr_to_meta(int nr)
-{
-       if (!syscalls_metadata || nr >= FTRACE_SYSCALL_MAX || nr < 0)
-               return NULL;
-
-       return syscalls_metadata[nr];
-}
-
-int syscall_name_to_nr(char *name)
-{
-       int i;
-
-       if (!syscalls_metadata)
-               return -1;
-       for (i = 0; i < NR_syscalls; i++)
-               if (syscalls_metadata[i])
-                       if (!strcmp(syscalls_metadata[i]->name, name))
-                               return i;
-       return -1;
-}
-
-void set_syscall_enter_id(int num, int id)
-{
-       syscalls_metadata[num]->enter_id = id;
-}
-
-void set_syscall_exit_id(int num, int id)
-{
-       syscalls_metadata[num]->exit_id = id;
-}
-
-static int __init arch_init_ftrace_syscalls(void)
+unsigned long __init arch_syscall_addr(int nr)
 {
-       int i;
-       struct syscall_metadata *meta;
-       unsigned long **psys_syscall_table = &sys_call_table;
-
-       syscalls_metadata = kzalloc(sizeof(*syscalls_metadata) *
-                                       FTRACE_SYSCALL_MAX, GFP_KERNEL);
-       if (!syscalls_metadata) {
-               WARN_ON(1);
-               return -ENOMEM;
-       }
-
-       for (i = 0; i < FTRACE_SYSCALL_MAX; i++) {
-               meta = find_syscall_meta(psys_syscall_table[i]);
-               syscalls_metadata[i] = meta;
-       }
-
-       return 0;
+       return (unsigned long)sys_call_table[nr];
 }
-arch_initcall(arch_init_ftrace_syscalls);
 #endif /* CONFIG_FTRACE_SYSCALLS */