1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* ld script to make ARM Linux kernel
3 * taken from the i386 version by Russell King
4 * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
7 #ifdef CONFIG_XIP_KERNEL
8 #include "vmlinux-xip.lds.S"
11 #include <linux/pgtable.h>
12 #include <asm/vmlinux.lds.h>
13 #include <asm/cache.h>
14 #include <asm/thread_info.h>
15 #include <asm/memory.h>
25 jiffies = jiffies_64 + 4;
31 * XXX: The linker does not define how output sections are
32 * assigned to input sections when there are multiple statements
33 * matching the same input section name. There is no documented
36 * unwind exit sections must be discarded before the rest of the
37 * unwind sections get included.
41 #ifndef CONFIG_SMP_ON_UP
46 . = PAGE_OFFSET + TEXT_OFFSET;
52 #ifdef CONFIG_STRICT_KERNEL_RWX
53 . = ALIGN(1<<SECTION_SHIFT);
57 . = ALIGN(PMSAv8_MINALIGN);
59 .text : { /* Real text segment */
60 _stext = .; /* Text and read-only data */
64 #ifdef CONFIG_DEBUG_ALIGN_RODATA
65 . = ALIGN(1<<SECTION_SHIFT);
67 _etext = .; /* End of text section */
72 __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
73 __start___ex_table = .;
74 ARM_MMU_KEEP(*(__ex_table))
75 __stop___ex_table = .;
78 #ifdef CONFIG_ARM_UNWIND
82 #ifdef CONFIG_STRICT_KERNEL_RWX
83 . = ALIGN(1<<SECTION_SHIFT);
92 ARM_EXIT_KEEP(EXIT_TEXT)
95 ARM_CPU_DISCARD(PROC_INFO)
98 __arch_info_begin = .;
103 __tagtable_begin = .;
107 #ifdef CONFIG_SMP_ON_UP
115 __pv_table_begin = .;
120 INIT_DATA_SECTION(16)
123 ARM_EXIT_KEEP(EXIT_DATA)
127 PERCPU_SECTION(L1_CACHE_BYTES)
130 #ifdef CONFIG_HAVE_TCM
134 #ifdef CONFIG_STRICT_KERNEL_RWX
135 . = ALIGN(1<<SECTION_SHIFT);
137 . = ALIGN(THREAD_SIZE);
142 RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
146 #ifdef CONFIG_ARM_MPU
147 . = ALIGN(PMSAv8_MINALIGN);
158 #ifdef CONFIG_STRICT_KERNEL_RWX
160 * Without CONFIG_DEBUG_ALIGN_RODATA, __start_rodata_section_aligned will
161 * be the first section-aligned location after __start_rodata. Otherwise,
162 * it will be equal to __start_rodata.
164 __start_rodata_section_aligned = ALIGN(__start_rodata, 1 << SECTION_SHIFT);
168 * These must never be empty
169 * If you have to comment these two assert statements out, your
170 * binutils is too old (for other reasons as well)
172 ASSERT((__proc_info_end - __proc_info_begin), "missing CPU support")
173 ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined")
175 #endif /* CONFIG_XIP_KERNEL */