unicore32 core architecture: build infrastructure

This patch implements build infrastructure.

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>

arch/unicore32/kernel/Makefile

@@ -0,0 +1,33 @@
+#
+# Makefile for the linux kernel.
+#
+
+# Object file lists.
+obj-y				:= dma.o elf.o entry.o process.o ptrace.o
+obj-y				+= setup.o signal.o sys.o stacktrace.o traps.o
+
+obj-$(CONFIG_MODULES)		+= ksyms.o module.o
+obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
+
+obj-$(CONFIG_CPU_FREQ)		+= cpu-ucv2.o
+obj-$(CONFIG_UNICORE_FPU_F64)	+= fpu-ucf64.o
+
+# obj-y for architecture PKUnity v3
+obj-$(CONFIG_ARCH_PUV3)		+= clock.o irq.o time.o
+
+obj-$(CONFIG_PUV3_GPIO)		+= gpio.o
+obj-$(CONFIG_PUV3_RTC)		+= rtc.o
+obj-$(CONFIG_PUV3_PWM)		+= pwm.o
+obj-$(CONFIG_PUV3_PM)		+= pm.o sleep.o
+obj-$(CONFIG_HIBERNATION)	+= hibernate.o hibernate_asm.o
+
+obj-$(CONFIG_PCI)		+= pci.o
+
+# obj-y for specific machines
+obj-$(CONFIG_ARCH_PUV3)		+= puv3-core.o
+obj-$(CONFIG_PUV3_NB0916)	+= puv3-nb0916.o
+
+head-y				:= head.o
+obj-$(CONFIG_DEBUG_LL)		+= debug.o
+
+extra-y				:= $(head-y) init_task.o vmlinux.lds

arch/unicore32/kernel/vmlinux.lds.S

@@ -0,0 +1,61 @@
+/*
+ * linux/arch/unicore32/kernel/vmlinux.lds.S
+ *
+ * Code specific to PKUnity SoC and UniCore ISA
+ *
+ * Copyright (C) 2001-2010 GUAN Xue-tao
+ *
+ * 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 <asm-generic/vmlinux.lds.h>
+#include <asm/thread_info.h>
+#include <asm/memory.h>
+#include <asm/page.h>
+
+OUTPUT_ARCH(unicore32)
+ENTRY(stext)
+
+jiffies = jiffies_64;
+
+SECTIONS
+{
+	. = PAGE_OFFSET + KERNEL_IMAGE_START;
+
+	_text = .;
+	__init_begin = .;
+	HEAD_TEXT_SECTION
+	INIT_TEXT_SECTION(PAGE_SIZE)
+	INIT_DATA_SECTION(16)
+	PERCPU(PAGE_SIZE)
+	__init_end = .;
+
+	_stext = .;
+	.text : {		/* Real text segment */
+		TEXT_TEXT
+		SCHED_TEXT
+		LOCK_TEXT
+
+		*(.fixup)
+		*(.gnu.warning)
+	}
+	_etext = .;
+
+	_sdata = .;
+	RO_DATA_SECTION(PAGE_SIZE)
+	RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE)
+	_edata = .;
+
+	EXCEPTION_TABLE(32)
+	NOTES
+
+	BSS_SECTION(0, 0, 0)
+	_end = .;
+
+	STABS_DEBUG
+	DWARF_DEBUG
+
+	DISCARDS		/* Exit code and data */
+}