xref: /openbmc/linux/arch/mips/kernel/vmlinux.lds.S (revision 54525552)
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	_sdata = .;			/* Start of data section */
69	RODATA
70
71	/* writeable */
72	_sdata = .;				/* Start of data section */
73	.data : {	/* Data */
74		. = . + DATAOFFSET;		/* for CONFIG_MAPPED_KERNEL */
75
76		INIT_TASK_DATA(PAGE_SIZE)
77		NOSAVE_DATA
78		CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
79		READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
80		DATA_DATA
81		CONSTRUCTORS
82	}
83	_gp = . + 0x8000;
84	.lit8 : {
85		*(.lit8)
86	}
87	.lit4 : {
88		*(.lit4)
89	}
90	/* We want the small data sections together, so single-instruction offsets
91	   can access them all, and initialized data all before uninitialized, so
92	   we can shorten the on-disk segment size.  */
93	.sdata : {
94		*(.sdata)
95	}
96	_edata =  .;			/* End of data section */
97
98	/* will be freed after init */
99	. = ALIGN(PAGE_SIZE);		/* Init code and data */
100	__init_begin = .;
101	INIT_TEXT_SECTION(PAGE_SIZE)
102	INIT_DATA_SECTION(16)
103
104	. = ALIGN(4);
105	.mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
106		__mips_machines_start = .;
107		*(.mips.machines.init)
108		__mips_machines_end = .;
109	}
110
111	/* .exit.text is discarded at runtime, not link time, to deal with
112	 * references from .rodata
113	 */
114	.exit.text : {
115		EXIT_TEXT
116	}
117	.exit.data : {
118		EXIT_DATA
119	}
120
121	PERCPU(1 << CONFIG_MIPS_L1_CACHE_SHIFT, PAGE_SIZE)
122	. = ALIGN(PAGE_SIZE);
123	__init_end = .;
124	/* freed after init ends here */
125
126	BSS_SECTION(0, 0, 0)
127
128	_end = . ;
129
130	/* These mark the ABI of the kernel for debuggers.  */
131	.mdebug.abi32 : {
132		KEEP(*(.mdebug.abi32))
133	}
134	.mdebug.abi64 : {
135		KEEP(*(.mdebug.abi64))
136	}
137
138	/* This is the MIPS specific mdebug section.  */
139	.mdebug : {
140		*(.mdebug)
141	}
142
143	STABS_DEBUG
144	DWARF_DEBUG
145
146	/* These must appear regardless of  .  */
147	.gptab.sdata : {
148		*(.gptab.data)
149		*(.gptab.sdata)
150	}
151	.gptab.sbss : {
152		*(.gptab.bss)
153		*(.gptab.sbss)
154	}
155
156	/* Sections to be discarded */
157	DISCARDS
158	/DISCARD/ : {
159		/* ABI crap starts here */
160		*(.MIPS.options)
161		*(.options)
162		*(.pdr)
163		*(.reginfo)
164	}
165}
166