1 /* SPDX-License-Identifier: GPL-2.0 */ !! 1 /* ld script to make SparcLinux kernel */
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 2
63 #include <asm-generic/vmlinux.lds.h> 3 #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 <<
75 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 4
>> 5 OUTPUT_FORMAT("elf32-sparc", "elf32-sparc", "elf32-sparc")
>> 6 OUTPUT_ARCH(sparc)
>> 7 ENTRY(_start)
>> 8 jiffies = jiffies_64 + 4;
153 SECTIONS 9 SECTIONS
154 { 10 {
155 /* !! 11 . = 0x10000 + SIZEOF_HEADERS;
156 * XXX: The linker does not define how !! 12 .text 0xf0004000 :
157 * assigned to input sections when the !! 13 {
158 * matching the same input section nam !! 14 *(.text)
159 * order of matching. !! 15 *(.gnu.warning)
160 */ !! 16 } =0
161 DISCARDS !! 17 _etext = .;
162 /DISCARD/ : { !! 18 PROVIDE (etext = .);
163 *(.interp .dynamic) !! 19 RODATA
164 *(.dynsym .dynstr .hash .gnu.h !! 20 .data :
165 } !! 21 {
166 !! 22 *(.data)
167 . = KIMAGE_VADDR; !! 23 CONSTRUCTORS
168 !! 24 }
169 .head.text : { !! 25 .data1 : { *(.data1) }
170 _text = .; !! 26 _edata = .;
171 HEAD_TEXT !! 27 PROVIDE (edata = .);
172 } !! 28 __start___fixup = .;
173 .text : ALIGN(SEGMENT_ALIGN) { /* Rea !! 29 .fixup : { *(.fixup) }
174 _stext = .; /* Tex !! 30 __stop___fixup = .;
175 IRQENTRY_TEXT !! 31 __start___ex_table = .;
176 SOFTIRQENTRY_TEXT !! 32 __ex_table : { *(__ex_table) }
177 ENTRY_TEXT !! 33 __stop___ex_table = .;
178 TEXT_TEXT !! 34
179 SCHED_TEXT !! 35 . = ALIGN(4096);
180 LOCK_TEXT !! 36 __init_begin = .;
181 KPROBES_TEXT !! 37 .init.text : {
182 HYPERVISOR_TEXT !! 38 _sinittext = .;
183 *(.gnu.warning) !! 39 *(.init.text)
184 } !! 40 _einittext = .;
185 !! 41 }
186 . = ALIGN(SEGMENT_ALIGN); !! 42 __init_text_end = .;
187 _etext = .; /* End !! 43 .init.data : { *(.init.data) }
188 !! 44 . = ALIGN(16);
189 /* everything from this point to __ini !! 45 __setup_start = .;
190 RO_DATA(PAGE_SIZE) !! 46 .init.setup : { *(.init.setup) }
191 !! 47 __setup_end = .;
192 HYPERVISOR_DATA_SECTIONS !! 48 __start___param = .;
193 !! 49 __param : { *(__param) }
194 .got : { *(.got) } !! 50 __stop___param = .;
195 /* !! 51 __initcall_start = .;
196 * Make sure that the .got.plt is eith !! 52 .initcall.init : {
197 * contains only the lazy dispatch ent !! 53 *(.initcall1.init)
198 */ !! 54 *(.initcall2.init)
199 .got.plt : { *(.got.plt) } !! 55 *(.initcall3.init)
200 ASSERT(SIZEOF(.got.plt) == 0 || SIZEOF !! 56 *(.initcall4.init)
201 "Unexpected GOT/PLT entries det !! 57 *(.initcall5.init)
202 !! 58 *(.initcall6.init)
203 /* code sections that are never execut !! 59 *(.initcall7.init)
204 .rodata.text : { !! 60 }
205 TRAMP_TEXT !! 61 __initcall_end = .;
206 HIBERNATE_TEXT !! 62 __con_initcall_start = .;
207 KEXEC_TEXT !! 63 .con_initcall.init : { *(.con_initcall.init) }
208 IDMAP_TEXT !! 64 __con_initcall_end = .;
209 . = ALIGN(PAGE_SIZE); !! 65 SECURITY_INIT
210 } !! 66 . = ALIGN(4096);
211 !! 67 __initramfs_start = .;
212 idmap_pg_dir = .; !! 68 .init.ramfs : { *(.init.ramfs) }
213 . += PAGE_SIZE; !! 69 __initramfs_end = .;
214 !! 70 . = ALIGN(32);
215 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0 !! 71 __per_cpu_start = .;
216 tramp_pg_dir = .; !! 72 .data.percpu : { *(.data.percpu) }
217 . += PAGE_SIZE; !! 73 __per_cpu_end = .;
218 #endif !! 74 . = ALIGN(4096);
219 !! 75 __init_end = .;
220 reserved_pg_dir = .; !! 76 . = ALIGN(32);
221 . += PAGE_SIZE; !! 77 .data.cacheline_aligned : { *(.data.cacheline_aligned) }
222 !! 78
223 swapper_pg_dir = .; !! 79 __bss_start = .;
224 . += PAGE_SIZE; !! 80 .sbss : { *(.sbss) *(.scommon) }
225 !! 81 .bss :
226 . = ALIGN(SEGMENT_ALIGN); !! 82 {
227 __init_begin = .; !! 83 *(.dynbss)
228 __inittext_begin = .; !! 84 *(.bss)
229 !! 85 *(COMMON)
230 INIT_TEXT_SECTION(8) !! 86 }
231 !! 87 _end = . ;
232 __exittext_begin = .; !! 88 PROVIDE (end = .);
233 .exit.text : { !! 89 /* Stabs debugging sections. */
234 EXIT_TEXT !! 90 .stab 0 : { *(.stab) }
235 } !! 91 .stabstr 0 : { *(.stabstr) }
236 __exittext_end = .; !! 92 .stab.excl 0 : { *(.stab.excl) }
237 !! 93 .stab.exclstr 0 : { *(.stab.exclstr) }
238 . = ALIGN(4); !! 94 .stab.index 0 : { *(.stab.index) }
239 .altinstructions : { !! 95 .stab.indexstr 0 : { *(.stab.indexstr) }
240 __alt_instructions = .; !! 96 .comment 0 : { *(.comment) }
241 *(.altinstructions) !! 97 .debug 0 : { *(.debug) }
242 __alt_instructions_end = .; !! 98 .debug_srcinfo 0 : { *(.debug_srcinfo) }
243 } !! 99 .debug_aranges 0 : { *(.debug_aranges) }
244 !! 100 .debug_pubnames 0 : { *(.debug_pubnames) }
245 UNWIND_DATA_SECTIONS !! 101 .debug_sfnames 0 : { *(.debug_sfnames) }
246 !! 102 .line 0 : { *(.line) }
247 . = ALIGN(SEGMENT_ALIGN); !! 103 /DISCARD/ : { *(.exit.text) *(.exit.data) *(.exitcall.exit) }
248 __inittext_end = .; <<
249 __initdata_begin = .; <<
250 <<
251 init_idmap_pg_dir = .; <<
252 . += INIT_IDMAP_DIR_SIZE; <<
253 init_idmap_pg_end = .; <<
254 <<
255 .init.data : { <<
256 INIT_DATA <<
257 INIT_SETUP(16) <<
258 INIT_CALLS <<
259 CON_INITCALL <<
260 INIT_RAM_FS <<
261 *(.init.altinstructions .init. <<
262 } <<
263 .exit.data : { <<
264 EXIT_DATA <<
265 } <<
266 <<
267 RUNTIME_CONST_VARIABLES <<
268 <<
269 PERCPU_SECTION(L1_CACHE_BYTES) <<
270 HYPERVISOR_PERCPU_SECTION <<
271 <<
272 HYPERVISOR_RELOC_SECTION <<
273 <<
274 .rela.dyn : ALIGN(8) { <<
275 __pi_rela_start = .; <<
276 *(.rela .rela*) <<
277 __pi_rela_end = .; <<
278 } <<
279 <<
280 .relr.dyn : ALIGN(8) { <<
281 __pi_relr_start = .; <<
282 *(.relr.dyn) <<
283 __pi_relr_end = .; <<
284 } <<
285 <<
286 . = ALIGN(SEGMENT_ALIGN); <<
287 __initdata_end = .; <<
288 __init_end = .; <<
289 <<
290 _data = .; <<
291 _sdata = .; <<
292 RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THR <<
293 <<
294 /* <<
295 * Data written with the MMU off but r <<
296 * cache lines to be invalidated, disc <<
297 * Granule (CWG) of data from the cach <<
298 * requires this type of maintenance t <<
299 * Granule (CWG) area so the cache mai <<
300 * interfere with adjacent data. <<
301 */ <<
302 .mmuoff.data.write : ALIGN(SZ_2K) { <<
303 __mmuoff_data_start = .; <<
304 *(.mmuoff.data.write) <<
305 } <<
306 . = ALIGN(SZ_2K); <<
307 .mmuoff.data.read : { <<
308 *(.mmuoff.data.read) <<
309 __mmuoff_data_end = .; <<
310 } <<
311 <<
312 PECOFF_EDATA_PADDING <<
313 __pecoff_data_rawsize = ABSOLUTE(. - _ <<
314 _edata = .; <<
315 <<
316 /* start of zero-init region */ <<
317 BSS_SECTION(SBSS_ALIGN, 0, 0) <<
318 <<
319 . = ALIGN(PAGE_SIZE); <<
320 init_pg_dir = .; <<
321 . += INIT_DIR_SIZE; <<
322 init_pg_end = .; <<
323 /* end of zero-init region */ <<
324 <<
325 . += SZ_4K; /* stack for t <<
326 early_init_stack = .; <<
327 <<
328 . = ALIGN(SEGMENT_ALIGN); <<
329 __pecoff_data_size = ABSOLUTE(. - __in <<
330 _end = .; <<
331 <<
332 STABS_DEBUG <<
333 DWARF_DEBUG <<
334 ELF_DETAILS <<
335 <<
336 HEAD_SYMBOLS <<
337 <<
338 /* <<
339 * Sections that should stay zero size <<
340 * explicitly check instead of blindly <<
341 */ <<
342 .plt : { <<
343 *(.plt) *(.plt.*) *(.iplt) *(. <<
344 } <<
345 ASSERT(SIZEOF(.plt) == 0, "Unexpected <<
346 <<
347 .data.rel.ro : { *(.data.rel.ro) } <<
348 ASSERT(SIZEOF(.data.rel.ro) == 0, "Une <<
349 } 104 }
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 <<
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