1 /* ld script to make ARM Linux kernel
2 * taken from the i386 version by Russell King
3 * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
6 #include <asm-generic/vmlinux.lds.h>
7 #include <asm/thread_info.h>
8 #include <asm/memory.h>
17 jiffies = jiffies_64 + 4;
22 #ifdef CONFIG_XIP_KERNEL
23 . = XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR);
25 . = PAGE_OFFSET + TEXT_OFFSET;
33 .init : { /* Init code and data */
36 __proc_info_begin = .;
39 __arch_info_begin = .;
55 __con_initcall_start = .;
57 __con_initcall_end = .;
58 __security_initcall_start = .;
59 *(.security_initcall.init)
60 __security_initcall_end = .;
61 #ifdef CONFIG_BLK_DEV_INITRD
63 __initramfs_start = .;
64 usr/built-in.o(.init.ramfs)
70 *(.data.percpu.page_aligned)
72 *(.data.percpu.shared_aligned)
74 #ifndef CONFIG_XIP_KERNEL
75 __init_begin = _stext;
82 /DISCARD/ : { /* Exit code and data */
87 *(.ARM.exidx.exit.text)
88 *(.ARM.extab.exit.text)
89 #ifndef CONFIG_HOTPLUG_CPU
90 *(.ARM.exidx.cpuexit.text)
91 *(.ARM.extab.cpuexit.text)
93 #ifndef CONFIG_HOTPLUG
94 *(.ARM.exidx.devexit.text)
95 *(.ARM.extab.devexit.text)
103 .text : { /* Real text segment */
104 _text = .; /* Text and read-only data */
105 __exception_text_start = .;
107 __exception_text_end = .;
120 *(.got) /* Global offset table */
125 _etext = .; /* End of text and rodata section */
127 #ifdef CONFIG_ARM_UNWIND
129 * Stack unwinding tables
133 __start_unwind_idx = .;
135 __stop_unwind_idx = .;
138 __start_unwind_tab = .;
140 __stop_unwind_tab = .;
144 #ifdef CONFIG_XIP_KERNEL
145 __data_loc = ALIGN(4); /* location in binary */
146 . = PAGE_OFFSET + TEXT_OFFSET;
148 . = ALIGN(THREAD_SIZE);
152 .data : AT(__data_loc) {
153 _data = .; /* address in memory */
157 * first, the init task union, aligned
158 * to an 8192 byte boundary.
162 #ifdef CONFIG_XIP_KERNEL
163 . = ALIGN(PAGE_SIZE);
166 . = ALIGN(PAGE_SIZE);
170 . = ALIGN(PAGE_SIZE);
173 . = ALIGN(PAGE_SIZE);
177 * then the cacheline aligned data
180 *(.data.cacheline_aligned)
183 * The exception fixup table (might need resorting at runtime)
186 __start___ex_table = .;
190 __stop___ex_table = .;
193 * and the usual data section
200 _edata_loc = __data_loc + SIZEOF(.data);
202 #ifdef CONFIG_HAVE_TCM
204 * We align everything to a page boundary so we can
205 * free it after init has commenced and TCM contents have
206 * been copied to its destination.
209 . = ALIGN(PAGE_SIZE);
215 * Link these to the ITCM RAM
216 * Put VMA to the TCM address and LMA to the common RAM
217 * and we'll upload the contents from RAM to TCM and free
218 * the used RAM after that.
220 .text_itcm ITCM_OFFSET : AT(__itcm_start)
230 * Reset the dot pointer, this is needed to create the
231 * relative __dtcm_start below (to be used as extern in code).
233 . = ADDR(.tcm_start) + SIZEOF(.tcm_start) + SIZEOF(.text_itcm);
239 /* TODO: add remainder of ITCM as well, that can be used for data! */
240 .data_dtcm DTCM_OFFSET : AT(__dtcm_start)
249 /* Reset the dot pointer or the linker gets confused */
250 . = ADDR(.dtcm_start) + SIZEOF(.data_dtcm);
252 /* End marker for freeing TCM copy in linked object */
253 .tcm_end : AT(ADDR(.dtcm_start) + SIZEOF(.data_dtcm)){
254 . = ALIGN(PAGE_SIZE);
260 __bss_start = .; /* BSS */
266 /* Stabs debugging sections. */
267 .stab 0 : { *(.stab) }
268 .stabstr 0 : { *(.stabstr) }
269 .stab.excl 0 : { *(.stab.excl) }
270 .stab.exclstr 0 : { *(.stab.exclstr) }
271 .stab.index 0 : { *(.stab.index) }
272 .stab.indexstr 0 : { *(.stab.indexstr) }
273 .comment 0 : { *(.comment) }
277 * These must never be empty
278 * If you have to comment these two assert statements out, your
279 * binutils is too old (for other reasons as well)
281 ASSERT((__proc_info_end - __proc_info_begin), "missing CPU support")
282 ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined")