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-rw-r--r--arch/arm26/kernel/asm-offsets.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/arm26/kernel/asm-offsets.c b/arch/arm26/kernel/asm-offsets.c
new file mode 100644
index 000000000000..4ccacaef94df
--- /dev/null
+++ b/arch/arm26/kernel/asm-offsets.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 1995-2001 Russell King
+ * 2001-2002 Keith Owens
+ * 2003 Ian Molton
+ *
+ * Generate definitions needed by assembly language modules.
+ * This code generates raw asm output which is post-processed to extract
+ * and format the required data.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+
+#include <asm/pgtable.h>
+#include <asm/uaccess.h>
+
+/*
+ * Make sure that the compiler and target are compatible.
+ */
+#if defined(__APCS_32__) && defined(CONFIG_CPU_26)
+#error Sorry, your compiler targets APCS-32 but this kernel requires APCS-26
+#endif
+#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 95)
+#error Sorry, your compiler is known to miscompile kernels. Only use gcc 2.95.3 and later.
+#endif
+#if __GNUC__ == 2 && __GNUC_MINOR__ == 95
+/* shame we can't detect the .1 or .2 releases */
+#warning GCC 2.95.2 and earlier miscompiles kernels.
+#endif
+
+/* Use marker if you need to separate the values later */
+
+#define DEFINE(sym, val) \
+ asm volatile("\n->" #sym " %0 " #val : : "i" (val))
+
+#define BLANK() asm volatile("\n->" : : )
+
+int main(void)
+{
+ DEFINE(TSK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
+ BLANK();
+ DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm));
+ DEFINE(VMA_VM_FLAGS, offsetof(struct vm_area_struct, vm_flags));
+ BLANK();
+ DEFINE(VM_EXEC, VM_EXEC);
+ BLANK();
+ BLANK();
+ DEFINE(PAGE_PRESENT, _PAGE_PRESENT);
+ DEFINE(PAGE_READONLY, _PAGE_READONLY);
+ DEFINE(PAGE_NOT_USER, _PAGE_NOT_USER);
+ DEFINE(PAGE_OLD, _PAGE_OLD);
+ DEFINE(PAGE_CLEAN, _PAGE_CLEAN);
+ BLANK();
+ DEFINE(PAGE_SZ, PAGE_SIZE);
+ BLANK();
+ DEFINE(SYS_ERROR0, 0x9f0000);
+ return 0;
+}