vmlinux.lds.S

  1/*
  2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
  3 * Copyright (C) 2008-2009 PetaLogix
  4 * Copyright (C) 2006 Atmark Techno, Inc.
  5 *
  6 * This file is subject to the terms and conditions of the GNU General Public
  7 * License. See the file "COPYING" in the main directory of this archive
  8 * for more details.
  9 */
 10
 11OUTPUT_ARCH(microblaze)
 12ENTRY(microblaze_start)
 13
 14#define RO_EXCEPTION_TABLE_ALIGN	16
 15
 16#include <asm/cache.h>
 17#include <asm/page.h>
 18#include <asm-generic/vmlinux.lds.h>
 19#include <asm/thread_info.h>
 20
 21#ifdef __MICROBLAZEEL__
 22jiffies = jiffies_64;
 23#else
 24jiffies = jiffies_64 + 4;
 25#endif
 26
 27SECTIONS {
 28	. = CONFIG_KERNEL_START;
 29	microblaze_start = CONFIG_KERNEL_BASE_ADDR;
 30	.text : AT(ADDR(.text) - LOAD_OFFSET) {
 31		_text = . ;
 32		_stext = . ;
 33		HEAD_TEXT
 34		TEXT_TEXT
 35		*(.fixup)
 36		EXIT_TEXT
 37		EXIT_CALL
 38		SCHED_TEXT
 39		LOCK_TEXT
 40		KPROBES_TEXT
 41		IRQENTRY_TEXT
 42		SOFTIRQENTRY_TEXT
 43		. = ALIGN (4) ;
 44		_etext = . ;
 45	}
 46
 47	. = ALIGN (8) ;
 48	__fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET) {
 49		_fdt_start = . ;		/* place for fdt blob */
 50		*(__fdt_blob) ;			/* Any link-placed DTB */
 51	        . = _fdt_start + 0x10000;	/* Pad up to 64kbyte */
 52		_fdt_end = . ;
 53	}
 54
 55	. = ALIGN(16);
 56	RO_DATA(4096)
 57
 58	/*
 59	 * sdata2 section can go anywhere, but must be word aligned
 60	 * and SDA2_BASE must point to the middle of it
 61	 */
 62	.sdata2 : AT(ADDR(.sdata2) - LOAD_OFFSET) {
 63		_ssrw = .;
 64		. = ALIGN(PAGE_SIZE); /* page aligned when MMU used */
 65		*(.sdata2)
 66	. = ALIGN(8);
 67	_essrw = .;
 68	_ssrw_size = _essrw - _ssrw;
 69	_KERNEL_SDA2_BASE_ = _ssrw + (_ssrw_size / 2);
 70	}
 71
 72	_sdata = . ;
 73	RW_DATA(32, PAGE_SIZE, THREAD_SIZE)
 74	_edata = . ;
 75
 76	/* Under the microblaze ABI, .sdata and .sbss must be contiguous */
 77	. = ALIGN(8);
 78	.sdata : AT(ADDR(.sdata) - LOAD_OFFSET) {
 79		_ssro = .;
 80		*(.sdata)
 81	}
 82
 83	.sbss :	AT(ADDR(.sbss) - LOAD_OFFSET) {
 84		_ssbss = .;
 85		*(.sbss)
 86		_esbss = .;
 87		_essro = .;
 88		_ssro_size = _essro - _ssro ;
 89		_KERNEL_SDA_BASE_ = _ssro + (_ssro_size / 2) ;
 90	}
 91
 92	PERCPU_SECTION(L1_CACHE_BYTES)
 93
 94	. = ALIGN(PAGE_SIZE);
 95	__init_begin = .;
 96
 97	INIT_TEXT_SECTION(PAGE_SIZE)
 98
 99	.init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
100		INIT_DATA
101	}
102
103	. = ALIGN(4);
104	.init.ivt : AT(ADDR(.init.ivt) - LOAD_OFFSET) {
105		__ivt_start = .;
106		*(.init.ivt)
107		__ivt_end = .;
108	}
109
110	.init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
111		INIT_SETUP(0)
112	}
113
114	.initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET ) {
115		INIT_CALLS
116	}
117
118	.con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
119		CON_INITCALL
120	}
121
122	__init_end_before_initramfs = .;
123
124	.init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
125		INIT_RAM_FS
126	}
127
128	__init_end = .;
129
130	.bss ALIGN (PAGE_SIZE) : AT(ADDR(.bss) - LOAD_OFFSET) {
131		/* page aligned when MMU used */
132		__bss_start = . ;
133			*(.bss*)
134			*(COMMON)
135		. = ALIGN (4) ;
136		__bss_stop = . ;
137	}
138	. = ALIGN(PAGE_SIZE);
139	_end = .;
140
141	DISCARDS
142}