2 #define PROVIDE32(x) PROVIDE(__unused__##x)
4 #define PROVIDE32(x) PROVIDE(x)
7 #include <asm-generic/vmlinux.lds.h>
9 #include <asm/thread_info.h>
14 kernel PT_LOAD FLAGS(7); /* RWX */
15 notes PT_NOTE FLAGS(0);
16 dummy PT_NOTE FLAGS(0);
18 /* binutils < 2.18 has a bug that makes it misbehave when taking an
19 ELF file with all segments at load address 0 as input. This
20 happens when running "strip" on vmlinux, because of the AT() magic
21 in this linker script. People using GCC >= 4.2 won't run into
22 this problem, because the "build-id" support will put some data
23 into the "notes" segment (at a non-zero load address).
25 To work around this, we force some data into both the "dummy"
26 segment and the kernel segment, so the dummy segment will get a
27 non-zero load address. It's not enough to always create the
28 "notes" segment, since if nothing gets assigned to it, its load
29 address will be zero. */
33 OUTPUT_ARCH(powerpc:common64)
36 OUTPUT_ARCH(powerpc:common)
37 jiffies = jiffies_64 + 4;
47 * Text, read only data and other permanent read-only sections
51 .text : AT(ADDR(.text) - LOAD_OFFSET) {
55 /* careful! __ftr_alt_* sections need to be close to .text */
56 *(.text .fixup __ftr_alt_* .ref.text)
67 #endif /* CONFIG_PPC32 */
73 PROVIDE32 (etext = .);
82 /* The dummy segment contents for the bug workaround mentioned above
84 .dummy : AT(ADDR(.dummy) - LOAD_OFFSET) {
91 * Init sections discarded at runtime
95 INIT_TEXT_SECTION(PAGE_SIZE) :kernel
97 /* .exit.text is discarded at runtime, not link time,
98 * to deal with references from __bug_table
100 .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
104 .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
106 __vtop_table_begin = .;
108 __vtop_table_end = .;
109 __ptov_table_begin = .;
111 __ptov_table_end = .;
112 #ifdef CONFIG_PPC_ISERIES
113 __dt_strings_start = .;
115 __dt_strings_end = .;
119 .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
123 .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
127 .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
134 __ftr_fixup : AT(ADDR(__ftr_fixup) - LOAD_OFFSET) {
135 __start___ftr_fixup = .;
137 __stop___ftr_fixup = .;
140 __mmu_ftr_fixup : AT(ADDR(__mmu_ftr_fixup) - LOAD_OFFSET) {
141 __start___mmu_ftr_fixup = .;
143 __stop___mmu_ftr_fixup = .;
146 __lwsync_fixup : AT(ADDR(__lwsync_fixup) - LOAD_OFFSET) {
147 __start___lwsync_fixup = .;
149 __stop___lwsync_fixup = .;
153 __fw_ftr_fixup : AT(ADDR(__fw_ftr_fixup) - LOAD_OFFSET) {
154 __start___fw_ftr_fixup = .;
156 __stop___fw_ftr_fixup = .;
159 .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
163 PERCPU_SECTION(L1_CACHE_BYTES)
166 .machine.desc : AT(ADDR(.machine.desc) - LOAD_OFFSET) {
167 __machine_desc_start = . ;
169 __machine_desc_end = . ;
171 #ifdef CONFIG_RELOCATABLE
173 .dynsym : AT(ADDR(.dynsym) - LOAD_OFFSET) { *(.dynsym) }
174 .dynstr : AT(ADDR(.dynstr) - LOAD_OFFSET) { *(.dynstr) }
175 .dynamic : AT(ADDR(.dynamic) - LOAD_OFFSET)
180 .hash : AT(ADDR(.hash) - LOAD_OFFSET) { *(.hash) }
181 .interp : AT(ADDR(.interp) - LOAD_OFFSET) { *(.interp) }
182 .rela.dyn : AT(ADDR(.rela.dyn) - LOAD_OFFSET)
184 __rela_dyn_start = .;
189 /* freed after init ends here */
190 . = ALIGN(PAGE_SIZE);
194 * And now the various read/write data
197 . = ALIGN(PAGE_SIZE);
201 .data : AT(ADDR(.data) - LOAD_OFFSET) {
207 .data : AT(ADDR(.data) - LOAD_OFFSET) {
214 .opd : AT(ADDR(.opd) - LOAD_OFFSET) {
218 .got : AT(ADDR(.got) - LOAD_OFFSET) {
225 /* The initial task and kernel stack */
226 INIT_TASK_DATA_SECTION(THREAD_SIZE)
228 .data..page_aligned : AT(ADDR(.data..page_aligned) - LOAD_OFFSET) {
229 PAGE_ALIGNED_DATA(PAGE_SIZE)
232 .data..cacheline_aligned : AT(ADDR(.data..cacheline_aligned) - LOAD_OFFSET) {
233 CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
236 .data..read_mostly : AT(ADDR(.data..read_mostly) - LOAD_OFFSET) {
237 READ_MOSTLY_DATA(L1_CACHE_BYTES)
240 . = ALIGN(PAGE_SIZE);
241 .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
245 . = ALIGN(PAGE_SIZE);
247 PROVIDE32 (edata = .);
250 * And finally the bss
255 . = ALIGN(PAGE_SIZE);
259 /* Sections to be discarded. */