1#ifdef CONFIG_PPC64
2#define PROVIDE32(x)	PROVIDE(__unused__##x)
3#else
4#define PROVIDE32(x)	PROVIDE(x)
5#endif
6#include <asm/page.h>
7#include <asm-generic/vmlinux.lds.h>
8#include <asm/cache.h>
9#include <asm/thread_info.h>
10
11ENTRY(_stext)
12
13PHDRS {
14	kernel PT_LOAD FLAGS(7); /* RWX */
15	notes PT_NOTE FLAGS(0);
16	dummy PT_NOTE FLAGS(0);
17
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).
24
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.  */
30}
31
32#ifdef CONFIG_PPC64
33OUTPUT_ARCH(powerpc:common64)
34jiffies = jiffies_64;
35#else
36OUTPUT_ARCH(powerpc:common)
37jiffies = jiffies_64 + 4;
38#endif
39SECTIONS
40{
41	. = KERNELBASE;
42
43/*
44 * Text, read only data and other permanent read-only sections
45 */
46
47	/* Text and gots */
48	.text : AT(ADDR(.text) - LOAD_OFFSET) {
49		ALIGN_FUNCTION();
50		HEAD_TEXT
51		_text = .;
52		/* careful! __ftr_alt_* sections need to be close to .text */
53		*(.text .fixup __ftr_alt_* .ref.text)
54		SCHED_TEXT
55		LOCK_TEXT
56		KPROBES_TEXT
57		IRQENTRY_TEXT
58
59#ifdef CONFIG_PPC32
60		*(.got1)
61		__got2_start = .;
62		*(.got2)
63		__got2_end = .;
64#endif /* CONFIG_PPC32 */
65
66	} :kernel
67
68	. = ALIGN(PAGE_SIZE);
69	_etext = .;
70	PROVIDE32 (etext = .);
71
72	/* Read-only data */
73	RODATA
74
75	EXCEPTION_TABLE(0)
76
77	NOTES :kernel :notes
78
79	/* The dummy segment contents for the bug workaround mentioned above
80	   near PHDRS.  */
81	.dummy : AT(ADDR(.dummy) - LOAD_OFFSET) {
82		LONG(0)
83		LONG(0)
84		LONG(0)
85	} :kernel :dummy
86
87/*
88 * Init sections discarded at runtime
89 */
90	. = ALIGN(PAGE_SIZE);
91	__init_begin = .;
92	INIT_TEXT_SECTION(PAGE_SIZE) :kernel
93
94	/* .exit.text is discarded at runtime, not link time,
95	 * to deal with references from __bug_table
96	 */
97	.exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
98		EXIT_TEXT
99	}
100
101	.init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
102		INIT_DATA
103		__vtop_table_begin = .;
104		*(.vtop_fixup);
105		__vtop_table_end = .;
106		__ptov_table_begin = .;
107		*(.ptov_fixup);
108		__ptov_table_end = .;
109#ifdef CONFIG_PPC_ISERIES
110		__dt_strings_start = .;
111		*(.dt_strings);
112		__dt_strings_end = .;
113#endif
114	}
115
116	.init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
117		INIT_SETUP(16)
118	}
119
120	.initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
121		INIT_CALLS
122	}
123
124	.con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
125		CON_INITCALL
126	}
127
128	SECURITY_INIT
129
130	. = ALIGN(8);
131	__ftr_fixup : AT(ADDR(__ftr_fixup) - LOAD_OFFSET) {
132		__start___ftr_fixup = .;
133		*(__ftr_fixup)
134		__stop___ftr_fixup = .;
135	}
136	. = ALIGN(8);
137	__mmu_ftr_fixup : AT(ADDR(__mmu_ftr_fixup) - LOAD_OFFSET) {
138		__start___mmu_ftr_fixup = .;
139		*(__mmu_ftr_fixup)
140		__stop___mmu_ftr_fixup = .;
141	}
142	. = ALIGN(8);
143	__lwsync_fixup : AT(ADDR(__lwsync_fixup) - LOAD_OFFSET) {
144		__start___lwsync_fixup = .;
145		*(__lwsync_fixup)
146		__stop___lwsync_fixup = .;
147	}
148#ifdef CONFIG_PPC64
149	. = ALIGN(8);
150	__fw_ftr_fixup : AT(ADDR(__fw_ftr_fixup) - LOAD_OFFSET) {
151		__start___fw_ftr_fixup = .;
152		*(__fw_ftr_fixup)
153		__stop___fw_ftr_fixup = .;
154	}
155#endif
156	.init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
157		INIT_RAM_FS
158	}
159
160	PERCPU(PAGE_SIZE)
161
162	. = ALIGN(8);
163	.machine.desc : AT(ADDR(.machine.desc) - LOAD_OFFSET) {
164		__machine_desc_start = . ;
165		*(.machine.desc)
166		__machine_desc_end = . ;
167	}
168#ifdef CONFIG_RELOCATABLE
169	. = ALIGN(8);
170	.dynsym : AT(ADDR(.dynsym) - LOAD_OFFSET) { *(.dynsym) }
171	.dynstr : AT(ADDR(.dynstr) - LOAD_OFFSET) { *(.dynstr) }
172	.dynamic : AT(ADDR(.dynamic) - LOAD_OFFSET)
173	{
174		__dynamic_start = .;
175		*(.dynamic)
176	}
177	.hash : AT(ADDR(.hash) - LOAD_OFFSET) { *(.hash) }
178	.interp : AT(ADDR(.interp) - LOAD_OFFSET) { *(.interp) }
179	.rela.dyn : AT(ADDR(.rela.dyn) - LOAD_OFFSET)
180	{
181		__rela_dyn_start = .;
182		*(.rela*)
183	}
184#endif
185
186	/* freed after init ends here */
187	. = ALIGN(PAGE_SIZE);
188	__init_end = .;
189
190/*
191 * And now the various read/write data
192 */
193
194	. = ALIGN(PAGE_SIZE);
195	_sdata = .;
196
197#ifdef CONFIG_PPC32
198	.data : AT(ADDR(.data) - LOAD_OFFSET) {
199		DATA_DATA
200		*(.sdata)
201		*(.got.plt) *(.got)
202	}
203#else
204	.data : AT(ADDR(.data) - LOAD_OFFSET) {
205		DATA_DATA
206		*(.data.rel*)
207		*(.toc1)
208		*(.branch_lt)
209	}
210
211	.opd : AT(ADDR(.opd) - LOAD_OFFSET) {
212		*(.opd)
213	}
214
215	.got : AT(ADDR(.got) - LOAD_OFFSET) {
216		__toc_start = .;
217		*(.got)
218		*(.toc)
219	}
220#endif
221
222	/* The initial task and kernel stack */
223	.data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
224		INIT_TASK_DATA(THREAD_SIZE)
225	}
226
227	.data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
228		PAGE_ALIGNED_DATA(PAGE_SIZE)
229	}
230
231	.data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
232		CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
233	}
234
235	.data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
236		READ_MOSTLY_DATA(L1_CACHE_BYTES)
237	}
238
239	.data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
240		NOSAVE_DATA
241	}
242
243	. = ALIGN(PAGE_SIZE);
244	_edata  =  .;
245	PROVIDE32 (edata = .);
246
247/*
248 * And finally the bss
249 */
250
251	BSS_SECTION(0, 0, 0)
252
253	. = ALIGN(PAGE_SIZE);
254	_end = . ;
255	PROVIDE32 (end = .);
256
257	/* Sections to be discarded. */
258	DISCARDS
259}
260