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
44 #ifndef CONFIG_ARM_UNWIND
45 *(.ARM.exidx) *(.ARM.exidx.*)
46 *(.ARM.extab) *(.ARM.extab.*)
50 . = PAGE_OFFSET + TEXT_OFFSET;
56 #ifdef CONFIG_STRICT_KERNEL_RWX
57 . = ALIGN(1<<SECTION_SHIFT);
61 . = ALIGN(PMSAv8_MINALIGN);
63 .text : { /* Real text segment */
64 _stext = .; /* Text and read-only data */
68 #ifdef CONFIG_DEBUG_ALIGN_RODATA
69 . = ALIGN(1<<SECTION_SHIFT);
71 _etext = .; /* End of text section */
76 __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
77 __start___ex_table = .;
78 ARM_MMU_KEEP(*(__ex_table))
79 __stop___ex_table = .;
82 #ifdef CONFIG_ARM_UNWIND
86 #ifdef CONFIG_STRICT_KERNEL_RWX
87 . = ALIGN(1<<SECTION_SHIFT);
96 ARM_EXIT_KEEP(EXIT_TEXT)
99 ARM_CPU_DISCARD(PROC_INFO)
102 __arch_info_begin = .;
107 __tagtable_begin = .;
111 #ifdef CONFIG_SMP_ON_UP
119 __pv_table_begin = .;
124 INIT_DATA_SECTION(16)
127 ARM_EXIT_KEEP(EXIT_DATA)
131 PERCPU_SECTION(L1_CACHE_BYTES)
134 #ifdef CONFIG_HAVE_TCM
138 #ifdef CONFIG_STRICT_KERNEL_RWX
139 . = ALIGN(1<<SECTION_SHIFT);
141 . = ALIGN(THREAD_SIZE);
146 RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
150 #ifdef CONFIG_ARM_MPU
151 . = ALIGN(PMSAv8_MINALIGN);
162 #ifdef CONFIG_STRICT_KERNEL_RWX
164 * Without CONFIG_DEBUG_ALIGN_RODATA, __start_rodata_section_aligned will
165 * be the first section-aligned location after __start_rodata. Otherwise,
166 * it will be equal to __start_rodata.
168 __start_rodata_section_aligned = ALIGN(__start_rodata, 1 << SECTION_SHIFT);
172 * These must never be empty
173 * If you have to comment these two assert statements out, your
174 * binutils is too old (for other reasons as well)
176 ASSERT((__proc_info_end - __proc_info_begin), "missing CPU support")
177 ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined")
179 #endif /* CONFIG_XIP_KERNEL */