1 /* SPDX-License-Identifier: GPL-2.0 */
3 #define PROVIDE32(x) PROVIDE(__unused__##x)
5 #define PROVIDE32(x) PROVIDE(x)
8 #define BSS_FIRST_SECTIONS *(.bss.prominit)
10 #define RO_EXCEPTION_TABLE_ALIGN 0
13 #include <asm-generic/vmlinux.lds.h>
14 #include <asm/cache.h>
15 #include <asm/thread_info.h>
17 #define STRICT_ALIGN_SIZE (1 << CONFIG_DATA_SHIFT)
18 #define ETEXT_ALIGN_SIZE (1 << CONFIG_ETEXT_SHIFT)
23 text PT_LOAD FLAGS(7); /* RWX */
24 note PT_NOTE FLAGS(0);
28 OUTPUT_ARCH(powerpc:common64)
31 OUTPUT_ARCH(powerpc:common)
32 jiffies = jiffies_64 + 4;
39 * Text, read only data and other permanent read-only sections
47 * This needs to be in its own output section to avoid ld placing
48 * branch trampoline stubs randomly throughout the fixed sections,
49 * which it will do (even if the branch comes from another section)
50 * in order to optimize stub generation.
52 .head.text : AT(ADDR(.head.text) - LOAD_OFFSET) {
54 KEEP(*(.head.text.first_256B));
55 #ifdef CONFIG_PPC_BOOK3E
57 KEEP(*(.head.text.real_vectors));
58 *(.head.text.real_trampolines);
59 KEEP(*(.head.text.virt_vectors));
60 *(.head.text.virt_trampolines);
61 # if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV)
62 KEEP(*(.head.data.fwnmi_page));
65 #else /* !CONFIG_PPC64 */
74 * ALIGN(0) overrides the default output section alignment because
75 * this needs to start right after .head.text in order for fixed
76 * section placement to work.
78 .text ALIGN(0) : AT(ADDR(.text) - LOAD_OFFSET) {
79 #ifdef CONFIG_LD_HEAD_STUB_CATCH
80 KEEP(*(.linker_stub_catch));
85 .text : AT(ADDR(.text) - LOAD_OFFSET) {
88 /* careful! __ftr_alt_* sections need to be close to .text */
89 *(.text.hot TEXT_MAIN .text.fixup .text.unlikely .fixup __ftr_alt_* .ref.text);
91 *(.tramp.ftrace.text);
100 * -Os builds call FP save/restore functions. The powerpc64
101 * linker generates those on demand in the .sfpr section.
102 * .sfpr gets placed at the beginning of a group of input
103 * sections, which can break start-of-text offset if it is
104 * included with the main text sections, so put it by itself.
115 #endif /* CONFIG_PPC32 */
119 . = ALIGN(ETEXT_ALIGN_SIZE);
121 PROVIDE32 (etext = .);
128 __stf_entry_barrier_fixup : AT(ADDR(__stf_entry_barrier_fixup) - LOAD_OFFSET) {
129 __start___stf_entry_barrier_fixup = .;
130 *(__stf_entry_barrier_fixup)
131 __stop___stf_entry_barrier_fixup = .;
135 __stf_exit_barrier_fixup : AT(ADDR(__stf_exit_barrier_fixup) - LOAD_OFFSET) {
136 __start___stf_exit_barrier_fixup = .;
137 *(__stf_exit_barrier_fixup)
138 __stop___stf_exit_barrier_fixup = .;
142 __rfi_flush_fixup : AT(ADDR(__rfi_flush_fixup) - LOAD_OFFSET) {
143 __start___rfi_flush_fixup = .;
145 __stop___rfi_flush_fixup = .;
147 #endif /* CONFIG_PPC64 */
149 #ifdef CONFIG_PPC_BARRIER_NOSPEC
151 __spec_barrier_fixup : AT(ADDR(__spec_barrier_fixup) - LOAD_OFFSET) {
152 __start___barrier_nospec_fixup = .;
153 *(__barrier_nospec_fixup)
154 __stop___barrier_nospec_fixup = .;
156 #endif /* CONFIG_PPC_BARRIER_NOSPEC */
158 #ifdef CONFIG_PPC_FSL_BOOK3E
160 __spec_btb_flush_fixup : AT(ADDR(__spec_btb_flush_fixup) - LOAD_OFFSET) {
161 __start__btb_flush_fixup = .;
163 __stop__btb_flush_fixup = .;
168 * Init sections discarded at runtime
170 . = ALIGN(STRICT_ALIGN_SIZE);
172 . = ALIGN(PAGE_SIZE);
173 .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
178 *(.tramp.ftrace.init);
182 /* .exit.text is discarded at runtime, not link time,
183 * to deal with references from __bug_table
185 .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
189 .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
193 .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
197 .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
201 .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
206 __ftr_fixup : AT(ADDR(__ftr_fixup) - LOAD_OFFSET) {
207 __start___ftr_fixup = .;
209 __stop___ftr_fixup = .;
212 __mmu_ftr_fixup : AT(ADDR(__mmu_ftr_fixup) - LOAD_OFFSET) {
213 __start___mmu_ftr_fixup = .;
214 KEEP(*(__mmu_ftr_fixup))
215 __stop___mmu_ftr_fixup = .;
218 __lwsync_fixup : AT(ADDR(__lwsync_fixup) - LOAD_OFFSET) {
219 __start___lwsync_fixup = .;
220 KEEP(*(__lwsync_fixup))
221 __stop___lwsync_fixup = .;
225 __fw_ftr_fixup : AT(ADDR(__fw_ftr_fixup) - LOAD_OFFSET) {
226 __start___fw_ftr_fixup = .;
227 KEEP(*(__fw_ftr_fixup))
228 __stop___fw_ftr_fixup = .;
231 .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
235 PERCPU_SECTION(L1_CACHE_BYTES)
238 .machine.desc : AT(ADDR(.machine.desc) - LOAD_OFFSET) {
239 __machine_desc_start = . ;
240 KEEP(*(.machine.desc))
241 __machine_desc_end = . ;
243 #ifdef CONFIG_RELOCATABLE
245 .dynsym : AT(ADDR(.dynsym) - LOAD_OFFSET)
248 __dynamic_symtab = .;
252 .dynstr : AT(ADDR(.dynstr) - LOAD_OFFSET) { *(.dynstr) }
253 .dynamic : AT(ADDR(.dynamic) - LOAD_OFFSET)
258 .hash : AT(ADDR(.hash) - LOAD_OFFSET) { *(.hash) }
259 .interp : AT(ADDR(.interp) - LOAD_OFFSET) { *(.interp) }
260 .rela.dyn : AT(ADDR(.rela.dyn) - LOAD_OFFSET)
262 __rela_dyn_start = .;
266 /* .exit.data is discarded at runtime, not link time,
267 * to deal with references from .exit.text
269 .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) {
273 /* freed after init ends here */
274 . = ALIGN(PAGE_SIZE);
278 * And now the various read/write data
281 . = ALIGN(PAGE_SIZE);
285 .data : AT(ADDR(.data) - LOAD_OFFSET) {
288 *(.data..Lubsan_data*)
289 *(.data..Lubsan_type*)
299 .data : AT(ADDR(.data) - LOAD_OFFSET) {
306 .opd : AT(ADDR(.opd) - LOAD_OFFSET) {
313 .got : AT(ADDR(.got) - LOAD_OFFSET) {
315 #ifndef CONFIG_RELOCATABLE
316 __prom_init_toc_start = .;
317 arch/powerpc/kernel/prom_init.o*(.toc .got)
318 __prom_init_toc_end = .;
325 /* The initial task and kernel stack */
326 INIT_TASK_DATA_SECTION(THREAD_ALIGN)
328 .data..page_aligned : AT(ADDR(.data..page_aligned) - LOAD_OFFSET) {
329 PAGE_ALIGNED_DATA(PAGE_SIZE)
332 .data..cacheline_aligned : AT(ADDR(.data..cacheline_aligned) - LOAD_OFFSET) {
333 CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
336 .data..read_mostly : AT(ADDR(.data..read_mostly) - LOAD_OFFSET) {
337 READ_MOSTLY_DATA(L1_CACHE_BYTES)
340 . = ALIGN(PAGE_SIZE);
341 .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
347 . = ALIGN(PAGE_SIZE);
349 PROVIDE32 (edata = .);
352 * And finally the bss
357 . = ALIGN(PAGE_SIZE);
368 *(.glink .iplt .plt .rela* .comment)