1 files changed, 73 insertions, 0 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/include/asm/flat.h b/target/linux/ubicom32/files/arch/ubicom32/include/asm/flat.h
new file mode 100644
index 000000000..84edd478b
--- /dev/null
+++ b/target/linux/ubicom32/files/arch/ubicom32/include/asm/flat.h
@@ -0,0 +1,73 @@
+/*
+ * arch/ubicom32/include/asm/flat.h
+ *   Definitions to support flat-format executables.
+ *
+ * (C) Copyright 2009, Ubicom, Inc.
+ *
+ * This file is part of the Ubicom32 Linux Kernel Port.
+ *
+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
+ * it and/or modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ * the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the Ubicom32 Linux Kernel Port.  If not,
+ * see <http://www.gnu.org/licenses/>.
+ *
+ * Ubicom32 implementation derived from (with many thanks):
+ *   arch/m68knommu
+ *   arch/blackfin
+ *   arch/parisc
+ */
+
+#ifndef _ASM_UBICOM32_FLAT_H
+#define _ASM_UBICOM32_FLAT_H
+
+#define ARCH_FLAT_ALIGN 0x80
+#define ARCH_FLAT_ALIGN_TEXT 1
+
+#define  R_UBICOM32_32		2
+#define  R_UBICOM32_HI24	7
+#define  R_UBICOM32_LO7_S	8
+#define  R_UBICOM32_LO7_2_S	9
+#define  R_UBICOM32_LO7_4_S	10
+#define  R_UBICOM32_LO7_D	11
+#define  R_UBICOM32_LO7_2_D	12
+#define  R_UBICOM32_LO7_4_D	13
+#define  R_UBICOM32_LO7_CALLI	15
+#define  R_UBICOM32_LO16_CALLI	16
+
+extern void ubicom32_flat_put_addr_at_rp(unsigned long *rp, u32_t val, u32_t rval, unsigned long  *p);
+extern unsigned long ubicom32_flat_get_addr_from_rp(unsigned long *rp, u32_t relval, u32_t flags, unsigned long *p);
+
+#define	flat_stack_align(sp)			/* nothing needed */
+#define	flat_argvp_envp_on_stack()		1
+#define	flat_old_ram_flag(flags)		(flags)
+#define	flat_reloc_valid(reloc, size)		((reloc) <= (size))
+#define	flat_get_addr_from_rp(rp, relval, flags, p)	(ubicom32_flat_get_addr_from_rp(rp, relval,flags, p))
+#define	flat_put_addr_at_rp(rp, val, relval)	do {ubicom32_flat_put_addr_at_rp(rp, val, relval, &persistent);} while(0)
+#define	flat_get_relocate_addr(rel)		((persistent) ? (persistent & 0x07ffffff) : (rel & 0x07ffffff))
+
+static inline int flat_set_persistent(unsigned int relval, unsigned long *p)
+{
+	if (*p) {
+		return 0;
+	} else {
+		if ((relval >> 27) != R_UBICOM32_32) {
+			/*
+			 * Something other than UBICOM32_32. The next entry has the relocation.
+			 */
+			*p = relval;
+			return 1;
+		}
+	}
+	return 0;
+}
+
+#endif /* _ASM_UBICOM32_FLAT_H */