From f8c4a270d9330a2bc179aeef0a22ea1ed288fb50 Mon Sep 17 00:00:00 2001 From: Jonas Bonn Date: Sat, 4 Jun 2011 21:52:05 +0300 Subject: OpenRISC: Build infrastructure Signed-off-by: Jonas Bonn Reviewed-by: Arnd Bergmann --- arch/openrisc/kernel/Makefile | 14 +++++ arch/openrisc/kernel/vmlinux.lds.S | 115 +++++++++++++++++++++++++++++++++++++ 2 files changed, 129 insertions(+) create mode 100644 arch/openrisc/kernel/Makefile create mode 100644 arch/openrisc/kernel/vmlinux.lds.S (limited to 'arch/openrisc/kernel') diff --git a/arch/openrisc/kernel/Makefile b/arch/openrisc/kernel/Makefile new file mode 100644 index 000000000000..9a4c2706d795 --- /dev/null +++ b/arch/openrisc/kernel/Makefile @@ -0,0 +1,14 @@ +# +# Makefile for the linux kernel. +# + +extra-y := head.o vmlinux.lds init_task.o + +obj-y := setup.o idle.o or32_ksyms.o process.o dma.o \ + traps.o time.o irq.o entry.o ptrace.o signal.o sys_or32.o \ + sys_call_table.o + +obj-$(CONFIG_MODULES) += module.o +obj-$(CONFIG_OF) += prom.o + +clean: diff --git a/arch/openrisc/kernel/vmlinux.lds.S b/arch/openrisc/kernel/vmlinux.lds.S new file mode 100644 index 000000000000..2d69a853b742 --- /dev/null +++ b/arch/openrisc/kernel/vmlinux.lds.S @@ -0,0 +1,115 @@ +/* + * OpenRISC vmlinux.lds.S + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * Modifications for the OpenRISC architecture: + * Copyright (C) 2003 Matjaz Breskvar + * Copyright (C) 2010-2011 Jonas Bonn + * + * This program 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. + * + * ld script for OpenRISC architecture + */ + +/* TODO + * - clean up __offset & stuff + * - change all 8192 aligment to PAGE !!! + * - recheck if all aligments are really needed + */ + +# define LOAD_OFFSET PAGE_OFFSET +# define LOAD_BASE PAGE_OFFSET + +#include +#include +#include + +OUTPUT_FORMAT("elf32-or32", "elf32-or32", "elf32-or32") +jiffies = jiffies_64 + 4; + +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = LOAD_BASE ; + + /* _s_kernel_ro must be page aligned */ + . = ALIGN(PAGE_SIZE); + _s_kernel_ro = .; + + .text : AT(ADDR(.text) - LOAD_OFFSET) + { + _stext = .; + TEXT_TEXT + SCHED_TEXT + LOCK_TEXT + KPROBES_TEXT + IRQENTRY_TEXT + *(.fixup) + *(.text.__*) + _etext = .; + } + /* TODO: Check if fixup and text.__* are really necessary + * fixup is definitely necessary + */ + + _sdata = .; + + /* Page alignment required for RO_DATA_SECTION */ + RO_DATA_SECTION(PAGE_SIZE) + _e_kernel_ro = .; + + /* Whatever comes after _e_kernel_ro had better be page-aligend, too */ + + /* 32 here is cacheline size... recheck this */ + RW_DATA_SECTION(32, PAGE_SIZE, PAGE_SIZE) + + _edata = .; + + EXCEPTION_TABLE(4) + NOTES + + /* Init code and data */ + . = ALIGN(PAGE_SIZE); + __init_begin = .; + + HEAD_TEXT_SECTION + + /* Page aligned */ + INIT_TEXT_SECTION(PAGE_SIZE) + + /* Align __setup_start on 16 byte boundary */ + INIT_DATA_SECTION(16) + + PERCPU_SECTION(L1_CACHE_BYTES) + + __init_end = .; + + . = ALIGN(PAGE_SIZE); + .initrd : AT(ADDR(.initrd) - LOAD_OFFSET) + { + __initrd_start = .; + *(.initrd) + __initrd_end = .; + FILL (0); + . = ALIGN (PAGE_SIZE); + } + + __vmlinux_end = .; /* last address of the physical file */ + + BSS_SECTION(0, 0, 0x20) + + _end = .; + + /* Throw in the debugging sections */ + STABS_DEBUG + DWARF_DEBUG + + /* Sections to be discarded -- must be last */ + DISCARDS +} -- cgit v1.2.1