init android origin source code

1 files changed, 43 insertions, 0 deletions

diff --git a/ANDROID_3.4.5/arch/mips/include/asm/branch.h b/ANDROID_3.4.5/arch/mips/include/asm/branch.h
new file mode 100644
index 00000000..888766ae
--- /dev/null
+++ b/ANDROID_3.4.5/arch/mips/include/asm/branch.h
@@ -0,0 +1,43 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1996, 1997, 1998, 2001 by Ralf Baechle
+ */
+#ifndef _ASM_BRANCH_H
+#define _ASM_BRANCH_H
+
+#include <asm/ptrace.h>
+#include <asm/inst.h>
+
+static inline int delay_slot(struct pt_regs *regs)
+{
+	return regs->cp0_cause & CAUSEF_BD;
+}
+
+static inline unsigned long exception_epc(struct pt_regs *regs)
+{
+	if (!delay_slot(regs))
+		return regs->cp0_epc;
+
+	return regs->cp0_epc + 4;
+}
+
+#define BRANCH_LIKELY_TAKEN 0x0001
+
+extern int __compute_return_epc(struct pt_regs *regs);
+extern int __compute_return_epc_for_insn(struct pt_regs *regs,
+					 union mips_instruction insn);
+
+static inline int compute_return_epc(struct pt_regs *regs)
+{
+	if (!delay_slot(regs)) {
+		regs->cp0_epc += 4;
+		return 0;
+	}
+
+	return __compute_return_epc(regs);
+}
+
+#endif /* _ASM_BRANCH_H */