xref: /linux/arch/mips/kernel/vmlinux.lds.S (revision 880102e78547c1db158a17e36cf0cdd98e7ad710)
1#include <asm/asm-offsets.h>
2#include <asm/page.h>
3#include <asm-generic/vmlinux.lds.h>
4
5#undef mips
6#define mips mips
7OUTPUT_ARCH(mips)
8ENTRY(kernel_entry)
9PHDRS {
10	text PT_LOAD FLAGS(7);	/* RWX */
11	note PT_NOTE FLAGS(4);	/* R__ */
12}
13
14#ifdef CONFIG_32BIT
15	#ifdef CONFIG_CPU_LITTLE_ENDIAN
16		jiffies  = jiffies_64;
17	#else
18		jiffies  = jiffies_64 + 4;
19	#endif
20#else
21	jiffies  = jiffies_64;
22#endif
23
24SECTIONS
25{
26#ifdef CONFIG_BOOT_ELF64
27	/* Read-only sections, merged into text segment: */
28	/* . = 0xc000000000000000; */
29
30	/* This is the value for an Origin kernel, taken from an IRIX kernel.  */
31	/* . = 0xc00000000001c000; */
32
33	/* Set the vaddr for the text segment to a value
34	 *   >= 0xa800 0000 0001 9000 if no symmon is going to configured
35	 *   >= 0xa800 0000 0030 0000 otherwise
36	 */
37
38	/* . = 0xa800000000300000; */
39	. = 0xffffffff80300000;
40#endif
41	. = VMLINUX_LOAD_ADDRESS;
42	/* read-only */
43	_text = .;	/* Text and read-only data */
44	.text : {
45		TEXT_TEXT
46		SCHED_TEXT
47		LOCK_TEXT
48		KPROBES_TEXT
49		IRQENTRY_TEXT
50		*(.text.*)
51		*(.fixup)
52		*(.gnu.warning)
53	} :text = 0
54	_etext = .;	/* End of text section */
55
56	EXCEPTION_TABLE(16)
57
58	/* Exception table for data bus errors */
59	__dbe_table : {
60		__start___dbe_table = .;
61		*(__dbe_table)
62		__stop___dbe_table = .;
63	}
64
65	NOTES :text :note
66	.dummy : { *(.dummy) } :text
67
68	RODATA
69
70	/* writeable */
71	_sdata = .;				/* Start of data section */
72	.data : {	/* Data */
73		. = . + DATAOFFSET;		/* for CONFIG_MAPPED_KERNEL */
74
75		INIT_TASK_DATA(PAGE_SIZE)
76		NOSAVE_DATA
77		CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
78		READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
79		DATA_DATA
80		CONSTRUCTORS
81	}
82	_gp = . + 0x8000;
83	.lit8 : {
84		*(.lit8)
85	}
86	.lit4 : {
87		*(.lit4)
88	}
89	/* We want the small data sections together, so single-instruction offsets
90	   can access them all, and initialized data all before uninitialized, so
91	   we can shorten the on-disk segment size.  */
92	.sdata : {
93		*(.sdata)
94	}
95	_edata =  .;			/* End of data section */
96
97	/* will be freed after init */
98	. = ALIGN(PAGE_SIZE);		/* Init code and data */
99	__init_begin = .;
100	INIT_TEXT_SECTION(PAGE_SIZE)
101	INIT_DATA_SECTION(16)
102
103	. = ALIGN(4);
104	.mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
105		__mips_machines_start = .;
106		*(.mips.machines.init)
107		__mips_machines_end = .;
108	}
109
110	/* .exit.text is discarded at runtime, not link time, to deal with
111	 * references from .rodata
112	 */
113	.exit.text : {
114		EXIT_TEXT
115	}
116	.exit.data : {
117		EXIT_DATA
118	}
119
120	PERCPU(1 << CONFIG_MIPS_L1_CACHE_SHIFT, PAGE_SIZE)
121	. = ALIGN(PAGE_SIZE);
122	__init_end = .;
123	/* freed after init ends here */
124
125	BSS_SECTION(0, 0, 0)
126
127	_end = . ;
128
129	/* These mark the ABI of the kernel for debuggers.  */
130	.mdebug.abi32 : {
131		KEEP(*(.mdebug.abi32))
132	}
133	.mdebug.abi64 : {
134		KEEP(*(.mdebug.abi64))
135	}
136
137	/* This is the MIPS specific mdebug section.  */
138	.mdebug : {
139		*(.mdebug)
140	}
141
142	STABS_DEBUG
143	DWARF_DEBUG
144
145	/* These must appear regardless of  .  */
146	.gptab.sdata : {
147		*(.gptab.data)
148		*(.gptab.sdata)
149	}
150	.gptab.sbss : {
151		*(.gptab.bss)
152		*(.gptab.sbss)
153	}
154
155	/* Sections to be discarded */
156	DISCARDS
157	/DISCARD/ : {
158		/* ABI crap starts here */
159		*(.MIPS.options)
160		*(.options)
161		*(.pdr)
162		*(.reginfo)
163	}
164}
165