xref: /linux/arch/powerpc/kernel/vmlinux.lds.S (revision a17627ef8833ac30622a7b39b7be390e1b174405) 
1#ifdef CONFIG_PPC64
2#include <asm/page.h>
3#define PROVIDE32(x)	PROVIDE(__unused__##x)
4#else
5#define PAGE_SIZE	4096
6#define KERNELBASE	CONFIG_KERNEL_START
7#define PROVIDE32(x)	PROVIDE(x)
8#endif
9#include <asm-generic/vmlinux.lds.h>
10
11ENTRY(_stext)
12
13#ifdef CONFIG_PPC64
14OUTPUT_ARCH(powerpc:common64)
15jiffies = jiffies_64;
16#else
17OUTPUT_ARCH(powerpc:common)
18jiffies = jiffies_64 + 4;
19#endif
20SECTIONS
21{
22	/* Sections to be discarded. */
23	/DISCARD/ : {
24	*(.exitcall.exit)
25	*(.exit.data)
26	}
27
28	. = KERNELBASE;
29
30/*
31 * Text, read only data and other permanent read-only sections
32 */
33
34	/* Text and gots */
35	.text : {
36		_text = .;
37		TEXT_TEXT
38		SCHED_TEXT
39		LOCK_TEXT
40		KPROBES_TEXT
41		*(.fixup)
42
43#ifdef CONFIG_PPC32
44		*(.got1)
45		__got2_start = .;
46		*(.got2)
47		__got2_end = .;
48#endif /* CONFIG_PPC32 */
49
50		. = ALIGN(PAGE_SIZE);
51		_etext = .;
52		PROVIDE32 (etext = .);
53	}
54
55	/* Read-only data */
56	RODATA
57
58	/* Exception & bug tables */
59	__ex_table : {
60		__start___ex_table = .;
61		*(__ex_table)
62		__stop___ex_table = .;
63	}
64
65	BUG_TABLE
66
67/*
68 * Init sections discarded at runtime
69 */
70	. = ALIGN(PAGE_SIZE);
71	__init_begin = .;
72
73	.init.text : {
74		_sinittext = .;
75		*(.init.text)
76		_einittext = .;
77	}
78
79	/* .exit.text is discarded at runtime, not link time,
80	 * to deal with references from __bug_table
81	 */
82	.exit.text : { *(.exit.text) }
83
84	.init.data : {
85		*(.init.data);
86		__vtop_table_begin = .;
87		*(.vtop_fixup);
88		__vtop_table_end = .;
89		__ptov_table_begin = .;
90		*(.ptov_fixup);
91		__ptov_table_end = .;
92#ifdef CONFIG_PPC_ISERIES
93		__dt_strings_start = .;
94		*(.dt_strings);
95		__dt_strings_end = .;
96#endif
97	}
98
99	. = ALIGN(16);
100	.init.setup : {
101		__setup_start = .;
102		*(.init.setup)
103		__setup_end = .;
104	}
105
106	.initcall.init : {
107		__initcall_start = .;
108		INITCALLS
109		__initcall_end = .;
110		}
111
112	.con_initcall.init : {
113		__con_initcall_start = .;
114		*(.con_initcall.init)
115		__con_initcall_end = .;
116	}
117
118	SECURITY_INIT
119
120	. = ALIGN(8);
121	__ftr_fixup : {
122		__start___ftr_fixup = .;
123		*(__ftr_fixup)
124		__stop___ftr_fixup = .;
125	}
126#ifdef CONFIG_PPC64
127	. = ALIGN(8);
128	__fw_ftr_fixup : {
129		__start___fw_ftr_fixup = .;
130		*(__fw_ftr_fixup)
131		__stop___fw_ftr_fixup = .;
132	}
133#endif
134#ifdef CONFIG_BLK_DEV_INITRD
135	. = ALIGN(PAGE_SIZE);
136	.init.ramfs : {
137		__initramfs_start = .;
138		*(.init.ramfs)
139		__initramfs_end = .;
140	}
141#endif
142	. = ALIGN(PAGE_SIZE);
143	.data.percpu : {
144		__per_cpu_start = .;
145		*(.data.percpu)
146		__per_cpu_end = .;
147	}
148
149	. = ALIGN(8);
150	.machine.desc : {
151		__machine_desc_start = . ;
152		*(.machine.desc)
153		__machine_desc_end = . ;
154	}
155
156	/* freed after init ends here */
157	. = ALIGN(PAGE_SIZE);
158	__init_end = .;
159
160/*
161 * And now the various read/write data
162 */
163
164	. = ALIGN(PAGE_SIZE);
165	_sdata = .;
166
167#ifdef CONFIG_PPC32
168	.data    :
169	{
170		DATA_DATA
171		*(.sdata)
172		*(.got.plt) *(.got)
173	}
174#else
175	.data : {
176		*(.data .data.rel* .toc1)
177		*(.branch_lt)
178	}
179
180	.opd : {
181		*(.opd)
182	}
183
184	.got : {
185		__toc_start = .;
186		*(.got)
187		*(.toc)
188	}
189#endif
190
191	. = ALIGN(PAGE_SIZE);
192	_edata  =  .;
193	PROVIDE32 (edata = .);
194
195	/* The initial task and kernel stack */
196#ifdef CONFIG_PPC32
197	. = ALIGN(8192);
198#else
199	. = ALIGN(16384);
200#endif
201	.data.init_task : {
202		*(.data.init_task)
203	}
204
205	. = ALIGN(PAGE_SIZE);
206	.data.page_aligned : {
207		*(.data.page_aligned)
208	}
209
210	.data.cacheline_aligned : {
211		*(.data.cacheline_aligned)
212	}
213
214	. = ALIGN(PAGE_SIZE);
215	__data_nosave : {
216		__nosave_begin = .;
217		*(.data.nosave)
218		. = ALIGN(PAGE_SIZE);
219		__nosave_end = .;
220	}
221
222/*
223 * And finally the bss
224 */
225
226	.bss : {
227		__bss_start = .;
228		*(.sbss) *(.scommon)
229		*(.dynbss)
230		*(.bss)
231		*(COMMON)
232		__bss_stop = .;
233	}
234
235	. = ALIGN(PAGE_SIZE);
236	_end = . ;
237	PROVIDE32 (end = .);
238}
239