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)
22 text PT_LOAD FLAGS(7); /* RWX */
23 note PT_NOTE FLAGS(0);
27 OUTPUT_ARCH(powerpc:common64)
30 OUTPUT_ARCH(powerpc:common)
31 jiffies = jiffies_64 + 4;
38 * Text, read only data and other permanent read-only sections
46 * This needs to be in its own output section to avoid ld placing
47 * branch trampoline stubs randomly throughout the fixed sections,
48 * which it will do (even if the branch comes from another section)
49 * in order to optimize stub generation.
51 .head.text : AT(ADDR(.head.text) - LOAD_OFFSET) {
53 KEEP(*(.head.text.first_256B));
54 #ifdef CONFIG_PPC_BOOK3E
56 KEEP(*(.head.text.real_vectors));
57 *(.head.text.real_trampolines);
58 KEEP(*(.head.text.virt_vectors));
59 *(.head.text.virt_trampolines);
60 # if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV)
61 KEEP(*(.head.data.fwnmi_page));
64 #else /* !CONFIG_PPC64 */
73 * ALIGN(0) overrides the default output section alignment because
74 * this needs to start right after .head.text in order for fixed
75 * section placement to work.
77 .text ALIGN(0) : AT(ADDR(.text) - LOAD_OFFSET) {
78 #ifdef CONFIG_LD_HEAD_STUB_CATCH
79 KEEP(*(.linker_stub_catch));
84 .text : AT(ADDR(.text) - LOAD_OFFSET) {
87 /* careful! __ftr_alt_* sections need to be close to .text */
88 *(.text.hot TEXT_MAIN .text.fixup .text.unlikely .fixup __ftr_alt_* .ref.text);
90 *(.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(PAGE_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 __entry_flush_fixup : AT(ADDR(__entry_flush_fixup) - LOAD_OFFSET) {
136 __start___entry_flush_fixup = .;
137 *(__entry_flush_fixup)
138 __stop___entry_flush_fixup = .;
142 __stf_exit_barrier_fixup : AT(ADDR(__stf_exit_barrier_fixup) - LOAD_OFFSET) {
143 __start___stf_exit_barrier_fixup = .;
144 *(__stf_exit_barrier_fixup)
145 __stop___stf_exit_barrier_fixup = .;
149 __rfi_flush_fixup : AT(ADDR(__rfi_flush_fixup) - LOAD_OFFSET) {
150 __start___rfi_flush_fixup = .;
152 __stop___rfi_flush_fixup = .;
154 #endif /* CONFIG_PPC64 */
156 #ifdef CONFIG_PPC_BARRIER_NOSPEC
158 __spec_barrier_fixup : AT(ADDR(__spec_barrier_fixup) - LOAD_OFFSET) {
159 __start___barrier_nospec_fixup = .;
160 *(__barrier_nospec_fixup)
161 __stop___barrier_nospec_fixup = .;
163 #endif /* CONFIG_PPC_BARRIER_NOSPEC */
165 #ifdef CONFIG_PPC_FSL_BOOK3E
167 __spec_btb_flush_fixup : AT(ADDR(__spec_btb_flush_fixup) - LOAD_OFFSET) {
168 __start__btb_flush_fixup = .;
170 __stop__btb_flush_fixup = .;
175 * Init sections discarded at runtime
177 . = ALIGN(STRICT_ALIGN_SIZE);
179 . = ALIGN(PAGE_SIZE);
180 .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
185 *(.tramp.ftrace.init);
189 /* .exit.text is discarded at runtime, not link time,
190 * to deal with references from __bug_table
192 .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
196 .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
200 .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
204 .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
208 .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
213 __ftr_fixup : AT(ADDR(__ftr_fixup) - LOAD_OFFSET) {
214 __start___ftr_fixup = .;
216 __stop___ftr_fixup = .;
219 __mmu_ftr_fixup : AT(ADDR(__mmu_ftr_fixup) - LOAD_OFFSET) {
220 __start___mmu_ftr_fixup = .;
221 KEEP(*(__mmu_ftr_fixup))
222 __stop___mmu_ftr_fixup = .;
225 __lwsync_fixup : AT(ADDR(__lwsync_fixup) - LOAD_OFFSET) {
226 __start___lwsync_fixup = .;
227 KEEP(*(__lwsync_fixup))
228 __stop___lwsync_fixup = .;
232 __fw_ftr_fixup : AT(ADDR(__fw_ftr_fixup) - LOAD_OFFSET) {
233 __start___fw_ftr_fixup = .;
234 KEEP(*(__fw_ftr_fixup))
235 __stop___fw_ftr_fixup = .;
238 .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
242 PERCPU_SECTION(L1_CACHE_BYTES)
245 .machine.desc : AT(ADDR(.machine.desc) - LOAD_OFFSET) {
246 __machine_desc_start = . ;
247 KEEP(*(.machine.desc))
248 __machine_desc_end = . ;
250 #ifdef CONFIG_RELOCATABLE
252 .dynsym : AT(ADDR(.dynsym) - LOAD_OFFSET)
255 __dynamic_symtab = .;
259 .dynstr : AT(ADDR(.dynstr) - LOAD_OFFSET) { *(.dynstr) }
260 .dynamic : AT(ADDR(.dynamic) - LOAD_OFFSET)
265 .hash : AT(ADDR(.hash) - LOAD_OFFSET) { *(.hash) }
266 .gnu.hash : AT(ADDR(.gnu.hash) - LOAD_OFFSET) { *(.gnu.hash) }
267 .interp : AT(ADDR(.interp) - LOAD_OFFSET) { *(.interp) }
268 .rela.dyn : AT(ADDR(.rela.dyn) - LOAD_OFFSET)
270 __rela_dyn_start = .;
274 /* .exit.data is discarded at runtime, not link time,
275 * to deal with references from .exit.text
277 .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) {
281 /* freed after init ends here */
282 . = ALIGN(PAGE_SIZE);
286 * And now the various read/write data
289 . = ALIGN(PAGE_SIZE);
293 .data : AT(ADDR(.data) - LOAD_OFFSET) {
296 *(.data..Lubsan_data*)
297 *(.data..Lubsan_type*)
307 .data : AT(ADDR(.data) - LOAD_OFFSET) {
314 .opd : AT(ADDR(.opd) - LOAD_OFFSET) {
321 .got : AT(ADDR(.got) - LOAD_OFFSET) {
323 #ifndef CONFIG_RELOCATABLE
324 __prom_init_toc_start = .;
325 arch/powerpc/kernel/prom_init.o*(.toc .got)
326 __prom_init_toc_end = .;
333 /* The initial task and kernel stack */
334 INIT_TASK_DATA_SECTION(THREAD_ALIGN)
336 .data..page_aligned : AT(ADDR(.data..page_aligned) - LOAD_OFFSET) {
337 PAGE_ALIGNED_DATA(PAGE_SIZE)
340 .data..cacheline_aligned : AT(ADDR(.data..cacheline_aligned) - LOAD_OFFSET) {
341 CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
344 .data..read_mostly : AT(ADDR(.data..read_mostly) - LOAD_OFFSET) {
345 READ_MOSTLY_DATA(L1_CACHE_BYTES)
348 . = ALIGN(PAGE_SIZE);
349 .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
355 . = ALIGN(PAGE_SIZE);
357 PROVIDE32 (edata = .);
360 * And finally the bss
365 . = ALIGN(PAGE_SIZE);
376 *(.glink .iplt .plt .rela* .comment)