1 /* SPDX-License-Identifier: GPL-2.0 */ !! 1 #include <linux/config.h>
2 /* <<
3 * ld script to make ARM Linux kernel <<
4 * taken from the i386 version by Russell King <<
5 * Written by Martin Mares <mj@atrey.karlin.mff <<
6 */ <<
7 <<
8 #include <asm/hyp_image.h> <<
9 #ifdef CONFIG_KVM <<
10 #define HYPERVISOR_EXTABLE <<
11 . = ALIGN(SZ_8); <<
12 __start___kvm_ex_table = .; <<
13 *(__kvm_ex_table) <<
14 __stop___kvm_ex_table = .; <<
15 <<
16 #define HYPERVISOR_DATA_SECTIONS <<
17 HYP_SECTION_NAME(.rodata) : { <<
18 . = ALIGN(PAGE_SIZE); <<
19 __hyp_rodata_start = .; <<
20 *(HYP_SECTION_NAME(.data..ro_a <<
21 *(HYP_SECTION_NAME(.rodata)) <<
22 . = ALIGN(PAGE_SIZE); <<
23 __hyp_rodata_end = .; <<
24 } <<
25 <<
26 #define HYPERVISOR_PERCPU_SECTION <<
27 . = ALIGN(PAGE_SIZE); <<
28 HYP_SECTION_NAME(.data..percpu) : { <<
29 *(HYP_SECTION_NAME(.data..perc <<
30 } <<
31 <<
32 #define HYPERVISOR_RELOC_SECTION <<
33 .hyp.reloc : ALIGN(4) { <<
34 __hyp_reloc_begin = .; <<
35 *(.hyp.reloc) <<
36 __hyp_reloc_end = .; <<
37 } <<
38 <<
39 #define BSS_FIRST_SECTIONS <<
40 __hyp_bss_start = .; <<
41 *(HYP_SECTION_NAME(.bss)) <<
42 . = ALIGN(PAGE_SIZE); <<
43 __hyp_bss_end = .; <<
44 <<
45 /* <<
46 * We require that __hyp_bss_start and __bss_s <<
47 * with an assertion. But the BSS_SECTION macr <<
48 * between them, which can in some cases cause <<
49 * work around the issue, force a page alignme <<
50 */ <<
51 #define SBSS_ALIGN PAGE_S <<
52 #else /* CONFIG_KVM */ <<
53 #define HYPERVISOR_EXTABLE <<
54 #define HYPERVISOR_DATA_SECTIONS <<
55 #define HYPERVISOR_PERCPU_SECTION <<
56 #define HYPERVISOR_RELOC_SECTION <<
57 #define SBSS_ALIGN 0 <<
58 #endif <<
59 <<
60 #define RO_EXCEPTION_TABLE_ALIGN 4 <<
61 #define RUNTIME_DISCARD_EXIT <<
62 <<
63 #include <asm-generic/vmlinux.lds.h> 2 #include <asm-generic/vmlinux.lds.h>
64 #include <asm/cache.h> <<
65 #include <asm/kernel-pgtable.h> <<
66 #include <asm/kexec.h> <<
67 #include <asm/memory.h> <<
68 #include <asm/page.h> <<
69 <<
70 #include "image.h" <<
71 <<
72 OUTPUT_ARCH(aarch64) <<
73 ENTRY(_text) <<
74 3
>> 4 OUTPUT_FORMAT("elf64-alpha")
>> 5 OUTPUT_ARCH(alpha)
>> 6 ENTRY(__start)
>> 7 PHDRS { kernel PT_LOAD ; }
75 jiffies = jiffies_64; 8 jiffies = jiffies_64;
76 <<
77 #define HYPERVISOR_TEXT <<
78 . = ALIGN(PAGE_SIZE); <<
79 __hyp_idmap_text_start = .; <<
80 *(.hyp.idmap.text) <<
81 __hyp_idmap_text_end = .; <<
82 __hyp_text_start = .; <<
83 *(.hyp.text) <<
84 HYPERVISOR_EXTABLE <<
85 . = ALIGN(PAGE_SIZE); <<
86 __hyp_text_end = .; <<
87 <<
88 #define IDMAP_TEXT <<
89 . = ALIGN(SZ_4K); <<
90 __idmap_text_start = .; <<
91 *(.idmap.text) <<
92 __idmap_text_end = .; <<
93 <<
94 #ifdef CONFIG_HIBERNATION <<
95 #define HIBERNATE_TEXT <<
96 ALIGN_FUNCTION(); <<
97 __hibernate_exit_text_start = .; <<
98 *(.hibernate_exit.text) <<
99 __hibernate_exit_text_end = .; <<
100 #else <<
101 #define HIBERNATE_TEXT <<
102 #endif <<
103 <<
104 #ifdef CONFIG_KEXEC_CORE <<
105 #define KEXEC_TEXT <<
106 ALIGN_FUNCTION(); <<
107 __relocate_new_kernel_start = .; <<
108 *(.kexec_relocate.text) <<
109 __relocate_new_kernel_end = .; <<
110 #else <<
111 #define KEXEC_TEXT <<
112 #endif <<
113 <<
114 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0 <<
115 #define TRAMP_TEXT <<
116 . = ALIGN(PAGE_SIZE); <<
117 __entry_tramp_text_start = .; <<
118 *(.entry.tramp.text) <<
119 . = ALIGN(PAGE_SIZE); <<
120 __entry_tramp_text_end = .; <<
121 *(.entry.tramp.rodata) <<
122 #else <<
123 #define TRAMP_TEXT <<
124 #endif <<
125 <<
126 #ifdef CONFIG_UNWIND_TABLES <<
127 #define UNWIND_DATA_SECTIONS <<
128 .eh_frame : { <<
129 __pi___eh_frame_start = .; <<
130 *(.eh_frame) <<
131 __pi___eh_frame_end = .; <<
132 } <<
133 #else <<
134 #define UNWIND_DATA_SECTIONS <<
135 #endif <<
136 <<
137 /* <<
138 * The size of the PE/COFF section that covers <<
139 * runs from _stext to _edata, must be a round <<
140 * FileAlignment, which we set to its minimum <<
141 * itself is 4 KB aligned, so padding out _eda <<
142 * boundary should be sufficient. <<
143 */ <<
144 PECOFF_FILE_ALIGNMENT = 0x200; <<
145 <<
146 #ifdef CONFIG_EFI <<
147 #define PECOFF_EDATA_PADDING \ <<
148 .pecoff_edata_padding : { BYTE(0); . = <<
149 #else <<
150 #define PECOFF_EDATA_PADDING <<
151 #endif <<
152 <<
153 SECTIONS 9 SECTIONS
154 { 10 {
155 /* !! 11 #ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS
156 * XXX: The linker does not define how !! 12 . = 0xfffffc0000310000;
157 * assigned to input sections when the !! 13 #else
158 * matching the same input section nam !! 14 . = 0xfffffc0001010000;
159 * order of matching. <<
160 */ <<
161 DISCARDS <<
162 /DISCARD/ : { <<
163 *(.interp .dynamic) <<
164 *(.dynsym .dynstr .hash .gnu.h <<
165 } <<
166 <<
167 . = KIMAGE_VADDR; <<
168 <<
169 .head.text : { <<
170 _text = .; <<
171 HEAD_TEXT <<
172 } <<
173 .text : ALIGN(SEGMENT_ALIGN) { /* Rea <<
174 _stext = .; /* Tex <<
175 IRQENTRY_TEXT <<
176 SOFTIRQENTRY_TEXT <<
177 ENTRY_TEXT <<
178 TEXT_TEXT <<
179 SCHED_TEXT <<
180 LOCK_TEXT <<
181 KPROBES_TEXT <<
182 HYPERVISOR_TEXT <<
183 *(.gnu.warning) <<
184 } <<
185 <<
186 . = ALIGN(SEGMENT_ALIGN); <<
187 _etext = .; /* End <<
188 <<
189 /* everything from this point to __ini <<
190 RO_DATA(PAGE_SIZE) <<
191 <<
192 HYPERVISOR_DATA_SECTIONS <<
193 <<
194 .got : { *(.got) } <<
195 /* <<
196 * Make sure that the .got.plt is eith <<
197 * contains only the lazy dispatch ent <<
198 */ <<
199 .got.plt : { *(.got.plt) } <<
200 ASSERT(SIZEOF(.got.plt) == 0 || SIZEOF <<
201 "Unexpected GOT/PLT entries det <<
202 <<
203 /* code sections that are never execut <<
204 .rodata.text : { <<
205 TRAMP_TEXT <<
206 HIBERNATE_TEXT <<
207 KEXEC_TEXT <<
208 IDMAP_TEXT <<
209 . = ALIGN(PAGE_SIZE); <<
210 } <<
211 <<
212 idmap_pg_dir = .; <<
213 . += PAGE_SIZE; <<
214 <<
215 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0 <<
216 tramp_pg_dir = .; <<
217 . += PAGE_SIZE; <<
218 #endif 15 #endif
219 16
220 reserved_pg_dir = .; !! 17 _text = .; /* Text and read-only data */
221 . += PAGE_SIZE; !! 18 .text : {
222 !! 19 *(.text)
223 swapper_pg_dir = .; !! 20 *(.fixup)
224 . += PAGE_SIZE; !! 21 *(.gnu.warning)
225 !! 22 } :kernel
226 . = ALIGN(SEGMENT_ALIGN); !! 23 _etext = .; /* End of text section */
227 __init_begin = .; !! 24
228 __inittext_begin = .; !! 25 . = ALIGN(16);
229 !! 26 __start___ex_table = .; /* Exception table */
230 INIT_TEXT_SECTION(8) !! 27 __ex_table : { *(__ex_table) }
231 !! 28 __stop___ex_table = .;
232 __exittext_begin = .; !! 29
233 .exit.text : { !! 30 RODATA
234 EXIT_TEXT !! 31
235 } !! 32 /* Will be freed after init */
236 __exittext_end = .; !! 33 . = ALIGN(8192); /* Init code and data */
237 !! 34 __init_begin = .;
238 . = ALIGN(4); !! 35 .init.text : {
239 .altinstructions : { !! 36 _sinittext = .;
240 __alt_instructions = .; !! 37 *(.init.text)
241 *(.altinstructions) !! 38 _einittext = .;
242 __alt_instructions_end = .; !! 39 }
243 } !! 40 .init.data : { *(.init.data) }
244 !! 41
245 UNWIND_DATA_SECTIONS !! 42 . = ALIGN(16);
246 !! 43 __setup_start = .;
247 . = ALIGN(SEGMENT_ALIGN); !! 44 .init.setup : { *(.init.setup) }
248 __inittext_end = .; !! 45 __setup_end = .;
249 __initdata_begin = .; !! 46
250 !! 47 . = ALIGN(8);
251 init_idmap_pg_dir = .; !! 48 __start___param = .;
252 . += INIT_IDMAP_DIR_SIZE; !! 49 __param : { *(__param) }
253 init_idmap_pg_end = .; !! 50 __stop___param = .;
254 !! 51
255 .init.data : { !! 52 . = ALIGN(8);
256 INIT_DATA !! 53 __initcall_start = .;
257 INIT_SETUP(16) !! 54 .initcall.init : {
258 INIT_CALLS !! 55 *(.initcall1.init)
259 CON_INITCALL !! 56 *(.initcall2.init)
260 INIT_RAM_FS !! 57 *(.initcall3.init)
261 *(.init.altinstructions .init. !! 58 *(.initcall4.init)
262 } !! 59 *(.initcall5.init)
263 .exit.data : { !! 60 *(.initcall6.init)
264 EXIT_DATA !! 61 *(.initcall7.init)
265 } !! 62 }
266 !! 63 __initcall_end = .;
267 RUNTIME_CONST_VARIABLES !! 64
268 !! 65 . = ALIGN(8192);
269 PERCPU_SECTION(L1_CACHE_BYTES) !! 66 __initramfs_start = .;
270 HYPERVISOR_PERCPU_SECTION !! 67 .init.ramfs : { *(.init.ramfs) }
271 !! 68 __initramfs_end = .;
272 HYPERVISOR_RELOC_SECTION !! 69
273 !! 70 . = ALIGN(8);
274 .rela.dyn : ALIGN(8) { !! 71 .con_initcall.init : {
275 __pi_rela_start = .; !! 72 __con_initcall_start = .;
276 *(.rela .rela*) !! 73 *(.con_initcall.init)
277 __pi_rela_end = .; !! 74 __con_initcall_end = .;
278 } !! 75 }
279 !! 76
280 .relr.dyn : ALIGN(8) { !! 77 . = ALIGN(8);
281 __pi_relr_start = .; !! 78 SECURITY_INIT
282 *(.relr.dyn) !! 79
283 __pi_relr_end = .; !! 80 . = ALIGN(64);
284 } !! 81 __per_cpu_start = .;
285 !! 82 .data.percpu : { *(.data.percpu) }
286 . = ALIGN(SEGMENT_ALIGN); !! 83 __per_cpu_end = .;
287 __initdata_end = .; !! 84
288 __init_end = .; !! 85 . = ALIGN(2*8192);
289 !! 86 __init_end = .;
290 _data = .; !! 87 /* Freed after init ends here */
291 _sdata = .; !! 88
292 RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THR !! 89 /* Note 2 page alignment above. */
293 !! 90 .data.init_thread : { *(.data.init_thread) }
294 /* !! 91
295 * Data written with the MMU off but r !! 92 . = ALIGN(8192);
296 * cache lines to be invalidated, disc !! 93 .data.page_aligned : { *(.data.page_aligned) }
297 * Granule (CWG) of data from the cach !! 94
298 * requires this type of maintenance t !! 95 . = ALIGN(64);
299 * Granule (CWG) area so the cache mai !! 96 .data.cacheline_aligned : { *(.data.cacheline_aligned) }
300 * interfere with adjacent data. !! 97
301 */ !! 98 _data = .;
302 .mmuoff.data.write : ALIGN(SZ_2K) { !! 99 .data : { /* Data */
303 __mmuoff_data_start = .; !! 100 *(.data)
304 *(.mmuoff.data.write) !! 101 CONSTRUCTORS
305 } !! 102 }
306 . = ALIGN(SZ_2K); !! 103
307 .mmuoff.data.read : { !! 104 .got : { *(.got) }
308 *(.mmuoff.data.read) !! 105 .sdata : { *(.sdata) }
309 __mmuoff_data_end = .; !! 106
310 } !! 107 _edata = .; /* End of data section */
311 !! 108
312 PECOFF_EDATA_PADDING !! 109 __bss_start = .;
313 __pecoff_data_rawsize = ABSOLUTE(. - _ !! 110 .sbss : { *(.sbss) *(.scommon) }
314 _edata = .; !! 111 .bss : { *(.bss) *(COMMON) }
315 !! 112 __bss_stop = .;
316 /* start of zero-init region */ !! 113
317 BSS_SECTION(SBSS_ALIGN, 0, 0) !! 114 _end = .;
318 !! 115
319 . = ALIGN(PAGE_SIZE); !! 116 /* Sections to be discarded */
320 init_pg_dir = .; !! 117 /DISCARD/ : { *(.exit.text) *(.exit.data) *(.exitcall.exit) }
321 . += INIT_DIR_SIZE; !! 118
322 init_pg_end = .; !! 119 .mdebug 0 : { *(.mdebug) }
323 /* end of zero-init region */ !! 120 .note 0 : { *(.note) }
324 !! 121 .comment 0 : { *(.comment) }
325 . += SZ_4K; /* stack for t !! 122
326 early_init_stack = .; !! 123 /* Stabs debugging sections */
327 !! 124 .stab 0 : { *(.stab) }
328 . = ALIGN(SEGMENT_ALIGN); !! 125 .stabstr 0 : { *(.stabstr) }
329 __pecoff_data_size = ABSOLUTE(. - __in !! 126 .stab.excl 0 : { *(.stab.excl) }
330 _end = .; !! 127 .stab.exclstr 0 : { *(.stab.exclstr) }
331 !! 128 .stab.index 0 : { *(.stab.index) }
332 STABS_DEBUG !! 129 .stab.indexstr 0 : { *(.stab.indexstr) }
333 DWARF_DEBUG !! 130 /* DWARF 1 */
334 ELF_DETAILS !! 131 .debug 0 : { *(.debug) }
335 !! 132 .line 0 : { *(.line) }
336 HEAD_SYMBOLS !! 133 /* GNU DWARF 1 extensions */
337 !! 134 .debug_srcinfo 0 : { *(.debug_srcinfo) }
338 /* !! 135 .debug_sfnames 0 : { *(.debug_sfnames) }
339 * Sections that should stay zero size !! 136 /* DWARF 1.1 and DWARF 2 */
340 * explicitly check instead of blindly !! 137 .debug_aranges 0 : { *(.debug_aranges) }
341 */ !! 138 .debug_pubnames 0 : { *(.debug_pubnames) }
342 .plt : { !! 139 /* DWARF 2 */
343 *(.plt) *(.plt.*) *(.iplt) *(. !! 140 .debug_info 0 : { *(.debug_info) }
344 } !! 141 .debug_abbrev 0 : { *(.debug_abbrev) }
345 ASSERT(SIZEOF(.plt) == 0, "Unexpected !! 142 .debug_line 0 : { *(.debug_line) }
346 !! 143 .debug_frame 0 : { *(.debug_frame) }
347 .data.rel.ro : { *(.data.rel.ro) } !! 144 .debug_str 0 : { *(.debug_str) }
348 ASSERT(SIZEOF(.data.rel.ro) == 0, "Une !! 145 .debug_loc 0 : { *(.debug_loc) }
>> 146 .debug_macinfo 0 : { *(.debug_macinfo) }
>> 147 /* SGI/MIPS DWARF 2 extensions */
>> 148 .debug_weaknames 0 : { *(.debug_weaknames) }
>> 149 .debug_funcnames 0 : { *(.debug_funcnames) }
>> 150 .debug_typenames 0 : { *(.debug_typenames) }
>> 151 .debug_varnames 0 : { *(.debug_varnames) }
349 } 152 }
350 <<
351 #include "image-vars.h" <<
352 <<
353 /* <<
354 * The HYP init code and ID map text can't be <<
355 * former is page-aligned, but the latter may <<
356 * it should also not cross a page boundary. <<
357 */ <<
358 ASSERT(__hyp_idmap_text_end - __hyp_idmap_text <<
359 "HYP init code too big") <<
360 ASSERT(__idmap_text_end - (__idmap_text_start <<
361 "ID map text too big or misaligned") <<
362 #ifdef CONFIG_HIBERNATION <<
363 ASSERT(__hibernate_exit_text_end - __hibernate <<
364 "Hibernate exit text is bigger than 4 K <<
365 ASSERT(__hibernate_exit_text_start == swsusp_a <<
366 "Hibernate exit text does not start wit <<
367 #endif <<
368 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0 <<
369 ASSERT((__entry_tramp_text_end - __entry_tramp <<
370 "Entry trampoline text too big") <<
371 #endif <<
372 #ifdef CONFIG_KVM <<
373 ASSERT(__hyp_bss_start == __bss_start, "HYP an <<
374 #endif <<
375 /* <<
376 * If padding is applied before .head.text, vi <<
377 */ <<
378 ASSERT(_text == KIMAGE_VADDR, "HEAD is misalig <<
379 <<
380 ASSERT(swapper_pg_dir - reserved_pg_dir == RES <<
381 "RESERVED_SWAPPER_OFFSET is wrong!") <<
382 <<
383 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0 <<
384 ASSERT(swapper_pg_dir - tramp_pg_dir == TRAMP_ <<
385 "TRAMP_SWAPPER_OFFSET is wrong!") <<
386 #endif <<
387 <<
388 #ifdef CONFIG_KEXEC_CORE <<
389 /* kexec relocation code should fit into one K <<
390 ASSERT(__relocate_new_kernel_end - __relocate_ <<
391 "kexec relocation code is bigger than 4 <<
392 ASSERT(KEXEC_CONTROL_PAGE_SIZE >= SZ_4K, "KEXE <<
393 ASSERT(__relocate_new_kernel_start == arm64_re <<
394 "kexec control page does not start with <<
395 #endif <<
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.