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 */
86 *(.ARM.exidx.exit.text)
87 *(.ARM.extab.exit.text)
88 #ifndef CONFIG_HOTPLUG_CPU
89 *(.ARM.exidx.cpuexit.text)
90 *(.ARM.extab.cpuexit.text)
92 #ifndef CONFIG_HOTPLUG
93 *(.ARM.exidx.devexit.text)
94 *(.ARM.extab.devexit.text)
102 .text : { /* Real text segment */
103 _text = .; /* Text and read-only data */
104 __exception_text_start = .;
106 __exception_text_end = .;
119 *(.got) /* Global offset table */
124 _etext = .; /* End of text and rodata section */
126 #ifdef CONFIG_ARM_UNWIND
128 * Stack unwinding tables
132 __start_unwind_idx = .;
134 __stop_unwind_idx = .;
137 __start_unwind_tab = .;
139 __stop_unwind_tab = .;
143 #ifdef CONFIG_XIP_KERNEL
144 __data_loc = ALIGN(4); /* location in binary */
145 . = PAGE_OFFSET + TEXT_OFFSET;
147 . = ALIGN(THREAD_SIZE);
151 .data : AT(__data_loc) {
152 _data = .; /* address in memory */
156 * first, the init task union, aligned
157 * to an 8192 byte boundary.
161 #ifdef CONFIG_XIP_KERNEL
162 . = ALIGN(PAGE_SIZE);
165 . = ALIGN(PAGE_SIZE);
169 . = ALIGN(PAGE_SIZE);
172 . = ALIGN(PAGE_SIZE);
176 * then the cacheline aligned data
179 *(.data.cacheline_aligned)
182 * The exception fixup table (might need resorting at runtime)
185 __start___ex_table = .;
189 __stop___ex_table = .;
192 * and the usual data section
199 _edata_loc = __data_loc + SIZEOF(.data);
201 #ifdef CONFIG_HAVE_TCM
203 * We align everything to a page boundary so we can
204 * free it after init has commenced and TCM contents have
205 * been copied to its destination.
208 . = ALIGN(PAGE_SIZE);
214 * Link these to the ITCM RAM
215 * Put VMA to the TCM address and LMA to the common RAM
216 * and we'll upload the contents from RAM to TCM and free
217 * the used RAM after that.
219 .text_itcm ITCM_OFFSET : AT(__itcm_start)
229 * Reset the dot pointer, this is needed to create the
230 * relative __dtcm_start below (to be used as extern in code).
232 . = ADDR(.tcm_start) + SIZEOF(.tcm_start) + SIZEOF(.text_itcm);
238 /* TODO: add remainder of ITCM as well, that can be used for data! */
239 .data_dtcm DTCM_OFFSET : AT(__dtcm_start)
248 /* Reset the dot pointer or the linker gets confused */
249 . = ADDR(.dtcm_start) + SIZEOF(.data_dtcm);
251 /* End marker for freeing TCM copy in linked object */
252 .tcm_end : AT(ADDR(.dtcm_start) + SIZEOF(.data_dtcm)){
253 . = ALIGN(PAGE_SIZE);
259 __bss_start = .; /* BSS */
265 /* Stabs debugging sections. */
266 .stab 0 : { *(.stab) }
267 .stabstr 0 : { *(.stabstr) }
268 .stab.excl 0 : { *(.stab.excl) }
269 .stab.exclstr 0 : { *(.stab.exclstr) }
270 .stab.index 0 : { *(.stab.index) }
271 .stab.indexstr 0 : { *(.stab.indexstr) }
272 .comment 0 : { *(.comment) }
276 * These must never be empty
277 * If you have to comment these two assert statements out, your
278 * binutils is too old (for other reasons as well)
280 ASSERT((__proc_info_end - __proc_info_begin), "missing CPU support")
281 ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined")