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authorSam Ravnborg <sam@ravnborg.org>2007-09-15 17:35:53 -0400
committerRalf Baechle <ralf@linux-mips.org>2007-10-11 18:46:04 -0400
commit0f5c90644240cc17d5940fa3594cc51ad1ae7ba7 (patch)
tree032467520fb9fcf898505519e75c536de5a0e619 /arch
parentd5ab1a6910fe850fa092888f210cf6c43136a7ab (diff)
[MIPS] Introduce a consistent style for vmlinux.lds.
This style will be consitent with all other arch's - soon. In addition: - Moved a few labels inside brackets for the sections they specify to prevent that linker alignmnet made them point before the section start Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/kernel/vmlinux.lds.S339
1 files changed, 189 insertions, 150 deletions
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index 087ab997487d..84f9a4cc6f2f 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -6,163 +6,202 @@
6OUTPUT_ARCH(mips) 6OUTPUT_ARCH(mips)
7ENTRY(kernel_entry) 7ENTRY(kernel_entry)
8jiffies = JIFFIES; 8jiffies = JIFFIES;
9
9SECTIONS 10SECTIONS
10{ 11{
11#ifdef CONFIG_BOOT_ELF64 12#ifdef CONFIG_BOOT_ELF64
12 /* Read-only sections, merged into text segment: */ 13 /* Read-only sections, merged into text segment: */
13 /* . = 0xc000000000000000; */ 14 /* . = 0xc000000000000000; */
14 15
15 /* This is the value for an Origin kernel, taken from an IRIX kernel. */ 16 /* This is the value for an Origin kernel, taken from an IRIX kernel. */
16 /* . = 0xc00000000001c000; */ 17 /* . = 0xc00000000001c000; */
17 18
18 /* Set the vaddr for the text segment to a value 19 /* Set the vaddr for the text segment to a value
19 >= 0xa800 0000 0001 9000 if no symmon is going to configured 20 * >= 0xa800 0000 0001 9000 if no symmon is going to configured
20 >= 0xa800 0000 0030 0000 otherwise */ 21 * >= 0xa800 0000 0030 0000 otherwise
22 */
21 23
22 /* . = 0xa800000000300000; */ 24 /* . = 0xa800000000300000; */
23 /* . = 0xa800000000300000; */ 25 /* . = 0xa800000000300000; */
24 . = 0xffffffff80300000; 26 . = 0xffffffff80300000;
25#endif 27#endif
26 . = LOADADDR; 28 . = LOADADDR;
27 /* read-only */ 29 /* read-only */
28 _text = .; /* Text and read-only data */ 30 _text = .; /* Text and read-only data */
29 .text : { 31 .text : {
30 TEXT_TEXT 32 TEXT_TEXT
31 SCHED_TEXT 33 SCHED_TEXT
32 LOCK_TEXT 34 LOCK_TEXT
33 *(.fixup) 35 *(.fixup)
34 *(.gnu.warning) 36 *(.gnu.warning)
35 } =0 37 } =0
36 38 _etext = .; /* End of text section */
37 _etext = .; /* End of text section */ 39
38 40 /* Exception table */
39 . = ALIGN(16); /* Exception table */ 41 . = ALIGN(16);
40 __start___ex_table = .; 42 __ex_table : {
41 __ex_table : { *(__ex_table) } 43 __start___ex_table = .;
42 __stop___ex_table = .; 44 *(__ex_table)
43 45 __stop___ex_table = .;
44 __start___dbe_table = .; /* Exception table for data bus errors */ 46 }
45 __dbe_table : { *(__dbe_table) } 47
46 __stop___dbe_table = .; 48 /* Exception table for data bus errors */
47 49 __dbe_table : {
48 NOTES 50 __start___dbe_table = .;
49 51 *(__dbe_table)
50 RODATA 52 __stop___dbe_table = .;
51 53 }
52 /* writeable */ 54 RODATA
53 .data : { /* Data */ 55
54 . = . + DATAOFFSET; /* for CONFIG_MAPPED_KERNEL */ 56 /* writeable */
55 /* 57 .data : { /* Data */
56 * This ALIGN is needed as a workaround for a bug a gcc bug upto 4.1 which 58 . = . + DATAOFFSET; /* for CONFIG_MAPPED_KERNEL */
57 * limits the maximum alignment to at most 32kB and results in the following 59 /*
58 * warning: 60 * This ALIGN is needed as a workaround for a bug a gcc bug upto 4.1 which
59 * 61 * limits the maximum alignment to at most 32kB and results in the following
60 * CC arch/mips/kernel/init_task.o 62 * warning:
61 * arch/mips/kernel/init_task.c:30: warning: alignment of ‘init_thread_union’ 63 *
62 * is greater than maximum object file alignment. Using 32768 64 * CC arch/mips/kernel/init_task.o
63 */ 65 * arch/mips/kernel/init_task.c:30: warning: alignment of ‘init_thread_union’
64 . = ALIGN(_PAGE_SIZE); 66 * is greater than maximum object file alignment. Using 32768
65 *(.data.init_task) 67 */
66 68 . = ALIGN(_PAGE_SIZE);
67 DATA_DATA 69 *(.data.init_task)
68 70
69 CONSTRUCTORS 71 DATA_DATA
70 } 72 CONSTRUCTORS
71 _gp = . + 0x8000; 73 }
72 .lit8 : { *(.lit8) } 74 _gp = . + 0x8000;
73 .lit4 : { *(.lit4) } 75 .lit8 : {
74 /* We want the small data sections together, so single-instruction offsets 76 *(.lit8)
75 can access them all, and initialized data all before uninitialized, so 77 }
76 we can shorten the on-disk segment size. */ 78 .lit4 : {
77 .sdata : { *(.sdata) } 79 *(.lit4)
78 80 }
79 . = ALIGN(_PAGE_SIZE); 81 /* We want the small data sections together, so single-instruction offsets
80 __nosave_begin = .; 82 can access them all, and initialized data all before uninitialized, so
81 .data_nosave : { *(.data.nosave) } 83 we can shorten the on-disk segment size. */
82 . = ALIGN(_PAGE_SIZE); 84 .sdata : {
83 __nosave_end = .; 85 *(.sdata)
84 86 }
85 . = ALIGN(32); 87
86 .data.cacheline_aligned : { *(.data.cacheline_aligned) } 88 . = ALIGN(_PAGE_SIZE);
87 89 .data_nosave : {
88 _edata = .; /* End of data section */ 90 __nosave_begin = .;
89 91 *(.data.nosave)
90 /* will be freed after init */ 92 }
91 . = ALIGN(_PAGE_SIZE); /* Init code and data */ 93 . = ALIGN(_PAGE_SIZE);
92 __init_begin = .; 94 __nosave_end = .;
93 .init.text : { 95
94 _sinittext = .; 96 . = ALIGN(32);
95 *(.init.text) 97 .data.cacheline_aligned : {
96 _einittext = .; 98 *(.data.cacheline_aligned)
97 } 99 }
98 .init.data : { *(.init.data) } 100 _edata = .; /* End of data section */
99 . = ALIGN(16); 101
100 __setup_start = .; 102 /* will be freed after init */
101 .init.setup : { *(.init.setup) } 103 . = ALIGN(_PAGE_SIZE); /* Init code and data */
102 __setup_end = .; 104 __init_begin = .;
103 105 .init.text : {
104 __initcall_start = .; 106 _sinittext = .;
105 .initcall.init : { 107 *(.init.text)
106 INITCALLS 108 _einittext = .;
107 } 109 }
108 __initcall_end = .; 110 .init.data : {
109 111 *(.init.data)
110 __con_initcall_start = .; 112 }
111 .con_initcall.init : { *(.con_initcall.init) } 113 . = ALIGN(16);
112 __con_initcall_end = .; 114 .init.setup : {
113 SECURITY_INIT 115 __setup_start = .;
114 /* .exit.text is discarded at runtime, not link time, to deal with 116 *(.init.setup)
115 references from .rodata */ 117 __setup_end = .;
116 .exit.text : { *(.exit.text) } 118 }
117 .exit.data : { *(.exit.data) } 119
120 .initcall.init : {
121 __initcall_start = .;
122 INITCALLS
123 __initcall_end = .;
124 }
125
126 .con_initcall.init : {
127 __con_initcall_start = .;
128 *(.con_initcall.init)
129 __con_initcall_end = .;
130 }
131 SECURITY_INIT
132
133 /* .exit.text is discarded at runtime, not link time, to deal with
134 * references from .rodata
135 */
136 .exit.text : {
137 *(.exit.text)
138 }
139 .exit.data : {
140 *(.exit.data)
141 }
118#if defined(CONFIG_BLK_DEV_INITRD) 142#if defined(CONFIG_BLK_DEV_INITRD)
119 . = ALIGN(_PAGE_SIZE); 143 . = ALIGN(_PAGE_SIZE);
120 __initramfs_start = .; 144 .init.ramfs : {
121 .init.ramfs : { *(.init.ramfs) } 145 __initramfs_start = .;
122 __initramfs_end = .; 146 *(.init.ramfs)
147 __initramfs_end = .;
148 }
123#endif 149#endif
124 PERCPU(_PAGE_SIZE) 150 PERCPU(_PAGE_SIZE)
125 . = ALIGN(_PAGE_SIZE); 151 . = ALIGN(_PAGE_SIZE);
126 __init_end = .; 152 __init_end = .;
127 /* freed after init ends here */ 153 /* freed after init ends here */
128 154
129 __bss_start = .; /* BSS */ 155 __bss_start = .; /* BSS */
130 .sbss : { 156 .sbss : {
131 *(.sbss) 157 *(.sbss)
132 *(.scommon) 158 *(.scommon)
133 } 159 }
134 .bss : { 160 .bss : {
135 *(.bss) 161 *(.bss)
136 *(COMMON) 162 *(COMMON)
137 } 163 }
138 __bss_stop = .; 164 __bss_stop = .;
139 165
140 _end = . ; 166 _end = . ;
141 167
142 /* Sections to be discarded */ 168 /* Sections to be discarded */
143 /DISCARD/ : { 169 /DISCARD/ : {
144 *(.exitcall.exit) 170 *(.exitcall.exit)
145 171
146 /* ABI crap starts here */ 172 /* ABI crap starts here */
147 *(.MIPS.options) 173 *(.MIPS.options)
148 *(.options) 174 *(.options)
149 *(.pdr) 175 *(.pdr)
150 *(.reginfo) 176 *(.reginfo)
151 } 177 }
152 178
153 /* These mark the ABI of the kernel for debuggers. */ 179 /* These mark the ABI of the kernel for debuggers. */
154 .mdebug.abi32 : { KEEP(*(.mdebug.abi32)) } 180 .mdebug.abi32 : {
155 .mdebug.abi64 : { KEEP(*(.mdebug.abi64)) } 181 KEEP(*(.mdebug.abi32))
156 182 }
157 /* This is the MIPS specific mdebug section. */ 183 .mdebug.abi64 : {
158 .mdebug : { *(.mdebug) } 184 KEEP(*(.mdebug.abi64))
159 185 }
160 STABS_DEBUG 186
161 187 /* This is the MIPS specific mdebug section. */
162 DWARF_DEBUG 188 .mdebug : {
163 189 *(.mdebug)
164 /* These must appear regardless of . */ 190 }
165 .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) } 191
166 .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) } 192 STABS_DEBUG
167 .note : { *(.note) } 193 DWARF_DEBUG
194
195 /* These must appear regardless of . */
196 .gptab.sdata : {
197 *(.gptab.data)
198 *(.gptab.sdata)
199 }
200 .gptab.sbss : {
201 *(.gptab.bss)
202 *(.gptab.sbss)
203 }
204 .note : {
205 *(.note)
206 }
168} 207}
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