[PATCH 1/4] asm/sections: add text/data checking functions for arches to override

From: Mike Frysinger
Date: Wed Jun 17 2009 - 12:22:47 EST


Some ports (like the Blackfin arch) have a discontiguous memory map which
means there may be text or data that falls outside of the standard range
of the start/end text/data symbols. Creating some helper functions allows
these non-standard ports to declare these regions without adversely
affecting anyone else.

Signed-off-by: Mike Frysinger <vapier@xxxxxxxxxx>
---
include/asm-generic/sections.h | 16 ++++++++++++++++
1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index 4ce48e8..ee19462 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -20,4 +20,20 @@ extern char __start_rodata[], __end_rodata[];
#define dereference_function_descriptor(p) (p)
#endif

+/* random extra sections (if any). Override
+ * in asm/sections.h */
+#ifndef arch_is_kernel_text
+static inline int arch_is_kernel_text(unsigned long addr)
+{
+ return 0;
+}
+#endif
+
+#ifndef arch_is_kernel_data
+static inline int arch_is_kernel_data(unsigned long addr)
+{
+ return 0;
+}
+#endif
+
#endif /* _ASM_GENERIC_SECTIONS_H_ */
--
1.6.3.1

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