[PATCH 02/12] x86: add arch_compat_syscall_addr()

[Jason Baron]

Add arch_compat_syscall_addr(int nr) for x86_64. This is in preparation for adding
compat syscall support to the event tracer.

Signed-off-by: Jason Baron <jbaron@xxxxxxxxxx>
---
 arch/x86/kernel/ftrace.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index cd37469..3ee2f46 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -510,3 +510,14 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
 	}
 }
 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
+
+#ifdef CONFIG_FTRACE_SYSCALLS
+extern unsigned long *ia32_sys_call_table;
+
+#ifdef CONFIG_COMPAT
+unsigned long __init arch_compat_syscall_addr(int nr)
+{
+	return (unsigned long)(&ia32_sys_call_table)[nr];
+}
+#endif
+#endif
-- 
1.6.5.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/