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;
44 * Text, read only data and other permanent read-only sections
48 .text : AT(ADDR(.text) - LOAD_OFFSET) {
52 /* careful! __ftr_alt_* sections need to be close to .text */
53 *(.text .fixup __ftr_alt_* .ref.text)
64 #endif /* CONFIG_PPC32 */
70 PROVIDE32 (etext = .);
79 /* The dummy segment contents for the bug workaround mentioned above
81 .dummy : AT(ADDR(.dummy) - LOAD_OFFSET) {
88 * Init sections discarded at runtime
92 INIT_TEXT_SECTION(PAGE_SIZE) :kernel
94 /* .exit.text is discarded at runtime, not link time,
95 * to deal with references from __bug_table
97 .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
101 .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
103 __vtop_table_begin = .;
105 __vtop_table_end = .;
106 __ptov_table_begin = .;
108 __ptov_table_end = .;
111 .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
115 .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
119 .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
126 __ftr_fixup : AT(ADDR(__ftr_fixup) - LOAD_OFFSET) {
127 __start___ftr_fixup = .;
129 __stop___ftr_fixup = .;
132 __mmu_ftr_fixup : AT(ADDR(__mmu_ftr_fixup) - LOAD_OFFSET) {
133 __start___mmu_ftr_fixup = .;
135 __stop___mmu_ftr_fixup = .;
138 __lwsync_fixup : AT(ADDR(__lwsync_fixup) - LOAD_OFFSET) {
139 __start___lwsync_fixup = .;
141 __stop___lwsync_fixup = .;
145 __fw_ftr_fixup : AT(ADDR(__fw_ftr_fixup) - LOAD_OFFSET) {
146 __start___fw_ftr_fixup = .;
148 __stop___fw_ftr_fixup = .;
151 .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
155 PERCPU_SECTION(L1_CACHE_BYTES)
158 .machine.desc : AT(ADDR(.machine.desc) - LOAD_OFFSET) {
159 __machine_desc_start = . ;
161 __machine_desc_end = . ;
163 #ifdef CONFIG_RELOCATABLE
165 .dynsym : AT(ADDR(.dynsym) - LOAD_OFFSET)
167 #ifdef CONFIG_RELOCATABLE_PPC32
168 __dynamic_symtab = .;
172 .dynstr : AT(ADDR(.dynstr) - LOAD_OFFSET) { *(.dynstr) }
173 .dynamic : AT(ADDR(.dynamic) - LOAD_OFFSET)
178 .hash : AT(ADDR(.hash) - LOAD_OFFSET) { *(.hash) }
179 .interp : AT(ADDR(.interp) - LOAD_OFFSET) { *(.interp) }
180 .rela.dyn : AT(ADDR(.rela.dyn) - LOAD_OFFSET)
182 __rela_dyn_start = .;
187 /* freed after init ends here */
188 . = ALIGN(PAGE_SIZE);
192 * And now the various read/write data
195 . = ALIGN(PAGE_SIZE);
199 .data : AT(ADDR(.data) - LOAD_OFFSET) {
205 .data : AT(ADDR(.data) - LOAD_OFFSET) {
212 .opd : AT(ADDR(.opd) - LOAD_OFFSET) {
217 .got : AT(ADDR(.got) - LOAD_OFFSET) {
219 #ifndef CONFIG_RELOCATABLE
220 __prom_init_toc_start = .;
221 arch/powerpc/kernel/prom_init.o*(.toc .got)
222 __prom_init_toc_end = .;
229 /* The initial task and kernel stack */
230 INIT_TASK_DATA_SECTION(THREAD_SIZE)
232 .data..page_aligned : AT(ADDR(.data..page_aligned) - LOAD_OFFSET) {
233 PAGE_ALIGNED_DATA(PAGE_SIZE)
236 .data..cacheline_aligned : AT(ADDR(.data..cacheline_aligned) - LOAD_OFFSET) {
237 CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
240 .data..read_mostly : AT(ADDR(.data..read_mostly) - LOAD_OFFSET) {
241 READ_MOSTLY_DATA(L1_CACHE_BYTES)
244 . = ALIGN(PAGE_SIZE);
245 .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
249 . = ALIGN(PAGE_SIZE);
251 PROVIDE32 (edata = .);
254 * And finally the bss
259 . = ALIGN(PAGE_SIZE);
263 /* Sections to be discarded. */