| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 1 | /* | 
|  | 2 | * Helper macros to support writing architecture specific | 
|  | 3 | * linker scripts. | 
|  | 4 | * | 
|  | 5 | * A minimal linker scripts has following content: | 
|  | 6 | * [This is a sample, architectures may have special requiriements] | 
|  | 7 | * | 
|  | 8 | * OUTPUT_FORMAT(...) | 
|  | 9 | * OUTPUT_ARCH(...) | 
|  | 10 | * ENTRY(...) | 
|  | 11 | * SECTIONS | 
|  | 12 | * { | 
|  | 13 | *	. = START; | 
|  | 14 | *	__init_begin = .; | 
| Sam Ravnborg | 7923f90 | 2009-06-14 22:10:41 +0200 | [diff] [blame] | 15 | *	HEAD_TEXT_SECTION | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 16 | *	INIT_TEXT_SECTION(PAGE_SIZE) | 
|  | 17 | *	INIT_DATA_SECTION(...) | 
|  | 18 | *	PERCPU(PAGE_SIZE) | 
|  | 19 | *	__init_end = .; | 
|  | 20 | * | 
|  | 21 | *	_stext = .; | 
|  | 22 | *	TEXT_SECTION = 0 | 
|  | 23 | *	_etext = .; | 
|  | 24 | * | 
|  | 25 | *      _sdata = .; | 
|  | 26 | *	RO_DATA_SECTION(PAGE_SIZE) | 
|  | 27 | *	RW_DATA_SECTION(...) | 
|  | 28 | *	_edata = .; | 
|  | 29 | * | 
|  | 30 | *	EXCEPTION_TABLE(...) | 
|  | 31 | *	NOTES | 
|  | 32 | * | 
| Tim Abbott | 04e448d | 2009-07-12 18:23:33 -0400 | [diff] [blame] | 33 | *	BSS_SECTION(0, 0, 0) | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 34 | *	_end = .; | 
|  | 35 | * | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 36 | *	STABS_DEBUG | 
|  | 37 | *	DWARF_DEBUG | 
| Tejun Heo | 023bf6f | 2009-07-09 11:27:40 +0900 | [diff] [blame] | 38 | * | 
|  | 39 | *	DISCARDS		// must be the last | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 40 | * } | 
|  | 41 | * | 
|  | 42 | * [__init_begin, __init_end] is the init section that may be freed after init | 
|  | 43 | * [_stext, _etext] is the text section | 
|  | 44 | * [_sdata, _edata] is the data section | 
|  | 45 | * | 
|  | 46 | * Some of the included output section have their own set of constants. | 
|  | 47 | * Examples are: [__initramfs_start, __initramfs_end] for initramfs and | 
|  | 48 | *               [__nosave_begin, __nosave_end] for the nosave data | 
|  | 49 | */ | 
| Tim Abbott | c80d471 | 2009-04-25 22:10:56 -0400 | [diff] [blame] | 50 |  | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | #ifndef LOAD_OFFSET | 
|  | 52 | #define LOAD_OFFSET 0 | 
|  | 53 | #endif | 
|  | 54 |  | 
| Alan Jenkins | 9e1b9b8 | 2009-11-07 21:03:54 +0000 | [diff] [blame] | 55 | #ifndef SYMBOL_PREFIX | 
|  | 56 | #define VMLINUX_SYMBOL(sym) sym | 
|  | 57 | #else | 
|  | 58 | #define PASTE2(x,y) x##y | 
|  | 59 | #define PASTE(x,y) PASTE2(x,y) | 
|  | 60 | #define VMLINUX_SYMBOL(sym) PASTE(SYMBOL_PREFIX, sym) | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | #endif | 
|  | 62 |  | 
| Sam Ravnborg | 6d30e3a | 2005-07-14 20:15:44 +0000 | [diff] [blame] | 63 | /* Align . to a 8 byte boundary equals to maximum function alignment. */ | 
|  | 64 | #define ALIGN_FUNCTION()  . = ALIGN(8) | 
|  | 65 |  | 
| Sam Ravnborg | 07fca0e | 2010-07-10 08:35:00 +0200 | [diff] [blame] | 66 | /* | 
|  | 67 | * Align to a 32 byte boundary equal to the | 
|  | 68 | * alignment gcc 4.5 uses for a struct | 
|  | 69 | */ | 
|  | 70 | #define STRUCT_ALIGN() . = ALIGN(32) | 
|  | 71 |  | 
| Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 72 | /* The actual configuration determine if the init/exit sections | 
|  | 73 | * are handled as text/data or they can be discarded (which | 
|  | 74 | * often happens at runtime) | 
|  | 75 | */ | 
|  | 76 | #ifdef CONFIG_HOTPLUG | 
|  | 77 | #define DEV_KEEP(sec)    *(.dev##sec) | 
|  | 78 | #define DEV_DISCARD(sec) | 
|  | 79 | #else | 
|  | 80 | #define DEV_KEEP(sec) | 
|  | 81 | #define DEV_DISCARD(sec) *(.dev##sec) | 
|  | 82 | #endif | 
|  | 83 |  | 
|  | 84 | #ifdef CONFIG_HOTPLUG_CPU | 
|  | 85 | #define CPU_KEEP(sec)    *(.cpu##sec) | 
|  | 86 | #define CPU_DISCARD(sec) | 
|  | 87 | #else | 
|  | 88 | #define CPU_KEEP(sec) | 
|  | 89 | #define CPU_DISCARD(sec) *(.cpu##sec) | 
|  | 90 | #endif | 
|  | 91 |  | 
| Adrian Bunk | 1a3fb6d | 2008-01-24 22:20:18 +0100 | [diff] [blame] | 92 | #if defined(CONFIG_MEMORY_HOTPLUG) | 
| Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 93 | #define MEM_KEEP(sec)    *(.mem##sec) | 
|  | 94 | #define MEM_DISCARD(sec) | 
|  | 95 | #else | 
|  | 96 | #define MEM_KEEP(sec) | 
|  | 97 | #define MEM_DISCARD(sec) *(.mem##sec) | 
|  | 98 | #endif | 
|  | 99 |  | 
| Steven Rostedt | 8da3821 | 2008-08-14 15:45:07 -0400 | [diff] [blame] | 100 | #ifdef CONFIG_FTRACE_MCOUNT_RECORD | 
| John Reiser | 4b3b4c5 | 2009-07-27 11:23:50 -0700 | [diff] [blame] | 101 | #define MCOUNT_REC()	. = ALIGN(8);				\ | 
|  | 102 | VMLINUX_SYMBOL(__start_mcount_loc) = .; \ | 
| Steven Rostedt | 8da3821 | 2008-08-14 15:45:07 -0400 | [diff] [blame] | 103 | *(__mcount_loc)				\ | 
|  | 104 | VMLINUX_SYMBOL(__stop_mcount_loc) = .; | 
|  | 105 | #else | 
|  | 106 | #define MCOUNT_REC() | 
|  | 107 | #endif | 
| Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 108 |  | 
| Steven Rostedt | 2ed84ee | 2008-11-12 15:24:24 -0500 | [diff] [blame] | 109 | #ifdef CONFIG_TRACE_BRANCH_PROFILING | 
| Steven Rostedt | 45b7974 | 2008-11-21 00:40:40 -0500 | [diff] [blame] | 110 | #define LIKELY_PROFILE()	VMLINUX_SYMBOL(__start_annotated_branch_profile) = .; \ | 
|  | 111 | *(_ftrace_annotated_branch)			      \ | 
|  | 112 | VMLINUX_SYMBOL(__stop_annotated_branch_profile) = .; | 
| Steven Rostedt | 1f0d69a | 2008-11-12 00:14:39 -0500 | [diff] [blame] | 113 | #else | 
|  | 114 | #define LIKELY_PROFILE() | 
|  | 115 | #endif | 
|  | 116 |  | 
| Steven Rostedt | 2bcd521 | 2008-11-21 01:30:54 -0500 | [diff] [blame] | 117 | #ifdef CONFIG_PROFILE_ALL_BRANCHES | 
|  | 118 | #define BRANCH_PROFILE()	VMLINUX_SYMBOL(__start_branch_profile) = .;   \ | 
|  | 119 | *(_ftrace_branch)			      \ | 
|  | 120 | VMLINUX_SYMBOL(__stop_branch_profile) = .; | 
|  | 121 | #else | 
|  | 122 | #define BRANCH_PROFILE() | 
|  | 123 | #endif | 
|  | 124 |  | 
| Tom Zanussi | 5f77a88 | 2009-04-08 03:14:01 -0500 | [diff] [blame] | 125 | #ifdef CONFIG_EVENT_TRACING | 
| Steven Rostedt | b77e38a | 2009-02-24 10:21:36 -0500 | [diff] [blame] | 126 | #define FTRACE_EVENTS()	VMLINUX_SYMBOL(__start_ftrace_events) = .;	\ | 
|  | 127 | *(_ftrace_events)				\ | 
|  | 128 | VMLINUX_SYMBOL(__stop_ftrace_events) = .; | 
|  | 129 | #else | 
|  | 130 | #define FTRACE_EVENTS() | 
|  | 131 | #endif | 
|  | 132 |  | 
| Lai Jiangshan | 1ba28e0 | 2009-03-06 17:21:48 +0100 | [diff] [blame] | 133 | #ifdef CONFIG_TRACING | 
|  | 134 | #define TRACE_PRINTKS() VMLINUX_SYMBOL(__start___trace_bprintk_fmt) = .;      \ | 
|  | 135 | *(__trace_printk_fmt) /* Trace_printk fmt' pointer */ \ | 
|  | 136 | VMLINUX_SYMBOL(__stop___trace_bprintk_fmt) = .; | 
|  | 137 | #else | 
|  | 138 | #define TRACE_PRINTKS() | 
|  | 139 | #endif | 
|  | 140 |  | 
| Frederic Weisbecker | bed1ffc | 2009-03-13 15:42:11 +0100 | [diff] [blame] | 141 | #ifdef CONFIG_FTRACE_SYSCALLS | 
|  | 142 | #define TRACE_SYSCALLS() VMLINUX_SYMBOL(__start_syscalls_metadata) = .;	\ | 
|  | 143 | *(__syscalls_metadata)				\ | 
|  | 144 | VMLINUX_SYMBOL(__stop_syscalls_metadata) = .; | 
|  | 145 | #else | 
|  | 146 | #define TRACE_SYSCALLS() | 
|  | 147 | #endif | 
|  | 148 |  | 
| Sam Ravnborg | ca96725 | 2007-05-17 13:38:44 +0200 | [diff] [blame] | 149 | /* .data section */ | 
|  | 150 | #define DATA_DATA							\ | 
| Sam Ravnborg | 0e0d314 | 2007-05-17 20:14:48 +0200 | [diff] [blame] | 151 | *(.data)							\ | 
| Sam Ravnborg | 312b148 | 2008-01-28 20:21:15 +0100 | [diff] [blame] | 152 | *(.ref.data)							\ | 
| Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 153 | DEV_KEEP(init.data)						\ | 
|  | 154 | DEV_KEEP(exit.data)						\ | 
|  | 155 | CPU_KEEP(init.data)						\ | 
|  | 156 | CPU_KEEP(exit.data)						\ | 
|  | 157 | MEM_KEEP(init.data)						\ | 
|  | 158 | MEM_KEEP(exit.data)						\ | 
| Mathieu Desnoyers | 7e066fb | 2008-11-14 17:47:47 -0500 | [diff] [blame] | 159 | . = ALIGN(32);							\ | 
| Mathieu Desnoyers | 97e1c18 | 2008-07-18 12:16:16 -0400 | [diff] [blame] | 160 | VMLINUX_SYMBOL(__start___tracepoints) = .;			\ | 
|  | 161 | *(__tracepoints)						\ | 
| Steven Rostedt | 1f0d69a | 2008-11-12 00:14:39 -0500 | [diff] [blame] | 162 | VMLINUX_SYMBOL(__stop___tracepoints) = .;			\ | 
| Jason Baron | e9d376f | 2009-02-05 11:51:38 -0500 | [diff] [blame] | 163 | /* implement dynamic printk debug */				\ | 
|  | 164 | . = ALIGN(8);							\ | 
|  | 165 | VMLINUX_SYMBOL(__start___verbose) = .;                          \ | 
|  | 166 | *(__verbose)                                                    \ | 
|  | 167 | VMLINUX_SYMBOL(__stop___verbose) = .;				\ | 
| Steven Rostedt | 2bcd521 | 2008-11-21 01:30:54 -0500 | [diff] [blame] | 168 | LIKELY_PROFILE()		       				\ | 
| Steven Rostedt | b77e38a | 2009-02-24 10:21:36 -0500 | [diff] [blame] | 169 | BRANCH_PROFILE()						\ | 
| Ingo Molnar | 8a20d84 | 2009-03-09 10:09:06 +0100 | [diff] [blame] | 170 | TRACE_PRINTKS()							\ | 
| Sam Ravnborg | 07fca0e | 2010-07-10 08:35:00 +0200 | [diff] [blame] | 171 | \ | 
|  | 172 | STRUCT_ALIGN();							\ | 
| Frederic Weisbecker | bed1ffc | 2009-03-13 15:42:11 +0100 | [diff] [blame] | 173 | FTRACE_EVENTS()							\ | 
| Sam Ravnborg | 07fca0e | 2010-07-10 08:35:00 +0200 | [diff] [blame] | 174 | \ | 
|  | 175 | STRUCT_ALIGN();							\ | 
| Frederic Weisbecker | bed1ffc | 2009-03-13 15:42:11 +0100 | [diff] [blame] | 176 | TRACE_SYSCALLS() | 
| Sam Ravnborg | ca96725 | 2007-05-17 13:38:44 +0200 | [diff] [blame] | 177 |  | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 178 | /* | 
|  | 179 | * Data section helpers | 
|  | 180 | */ | 
|  | 181 | #define NOSAVE_DATA							\ | 
|  | 182 | . = ALIGN(PAGE_SIZE);						\ | 
|  | 183 | VMLINUX_SYMBOL(__nosave_begin) = .;				\ | 
| Denys Vlasenko | 07b3bb1 | 2010-02-20 01:03:52 +0100 | [diff] [blame] | 184 | *(.data..nosave)						\ | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 185 | . = ALIGN(PAGE_SIZE);						\ | 
|  | 186 | VMLINUX_SYMBOL(__nosave_end) = .; | 
|  | 187 |  | 
|  | 188 | #define PAGE_ALIGNED_DATA(page_align)					\ | 
|  | 189 | . = ALIGN(page_align);						\ | 
| Tim Abbott | 75b1348 | 2010-02-20 01:03:37 +0100 | [diff] [blame] | 190 | *(.data..page_aligned) | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 191 |  | 
|  | 192 | #define READ_MOSTLY_DATA(align)						\ | 
|  | 193 | . = ALIGN(align);						\ | 
| Denys Vlasenko | 54cb27a | 2010-02-20 01:03:44 +0100 | [diff] [blame] | 194 | *(.data..read_mostly) | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 195 |  | 
|  | 196 | #define CACHELINE_ALIGNED_DATA(align)					\ | 
|  | 197 | . = ALIGN(align);						\ | 
| Tim Abbott | 4af57b7 | 2010-02-20 01:03:34 +0100 | [diff] [blame] | 198 | *(.data..cacheline_aligned) | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 199 |  | 
| Tim Abbott | 39a449d | 2009-06-23 18:53:15 -0400 | [diff] [blame] | 200 | #define INIT_TASK_DATA(align)						\ | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 201 | . = ALIGN(align);						\ | 
| Tim Abbott | 2af7687 | 2010-02-20 01:03:35 +0100 | [diff] [blame] | 202 | *(.data..init_task) | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 203 |  | 
|  | 204 | /* | 
|  | 205 | * Read only Data | 
|  | 206 | */ | 
|  | 207 | #define RO_DATA_SECTION(align)						\ | 
| Sam Ravnborg | 4096b46 | 2007-05-29 21:29:00 +0200 | [diff] [blame] | 208 | . = ALIGN((align));						\ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | .rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\ | 
| Vivek Goyal | 6569580 | 2006-12-07 02:14:03 +0100 | [diff] [blame] | 210 | VMLINUX_SYMBOL(__start_rodata) = .;			\ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | *(.rodata) *(.rodata.*)					\ | 
|  | 212 | *(__vermagic)		/* Kernel version magic */	\ | 
| Mathieu Desnoyers | 8256e47 | 2007-10-18 23:41:06 -0700 | [diff] [blame] | 213 | *(__markers_strings)	/* Markers: strings */		\ | 
| Mathieu Desnoyers | 97e1c18 | 2008-07-18 12:16:16 -0400 | [diff] [blame] | 214 | *(__tracepoints_strings)/* Tracepoints: strings */	\ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | }								\ | 
|  | 216 | \ | 
|  | 217 | .rodata1          : AT(ADDR(.rodata1) - LOAD_OFFSET) {		\ | 
|  | 218 | *(.rodata1)						\ | 
|  | 219 | }								\ | 
|  | 220 | \ | 
| Jan Beulich | 6360b1f | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 221 | BUG_TABLE							\ | 
|  | 222 | \ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | /* PCI quirks */						\ | 
|  | 224 | .pci_fixup        : AT(ADDR(.pci_fixup) - LOAD_OFFSET) {	\ | 
|  | 225 | VMLINUX_SYMBOL(__start_pci_fixups_early) = .;		\ | 
|  | 226 | *(.pci_fixup_early)					\ | 
|  | 227 | VMLINUX_SYMBOL(__end_pci_fixups_early) = .;		\ | 
|  | 228 | VMLINUX_SYMBOL(__start_pci_fixups_header) = .;		\ | 
|  | 229 | *(.pci_fixup_header)					\ | 
|  | 230 | VMLINUX_SYMBOL(__end_pci_fixups_header) = .;		\ | 
|  | 231 | VMLINUX_SYMBOL(__start_pci_fixups_final) = .;		\ | 
|  | 232 | *(.pci_fixup_final)					\ | 
|  | 233 | VMLINUX_SYMBOL(__end_pci_fixups_final) = .;		\ | 
|  | 234 | VMLINUX_SYMBOL(__start_pci_fixups_enable) = .;		\ | 
|  | 235 | *(.pci_fixup_enable)					\ | 
|  | 236 | VMLINUX_SYMBOL(__end_pci_fixups_enable) = .;		\ | 
| Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 237 | VMLINUX_SYMBOL(__start_pci_fixups_resume) = .;		\ | 
|  | 238 | *(.pci_fixup_resume)					\ | 
|  | 239 | VMLINUX_SYMBOL(__end_pci_fixups_resume) = .;		\ | 
| Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 240 | VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .;	\ | 
|  | 241 | *(.pci_fixup_resume_early)				\ | 
|  | 242 | VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .;	\ | 
|  | 243 | VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .;		\ | 
|  | 244 | *(.pci_fixup_suspend)					\ | 
|  | 245 | VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .;		\ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | }								\ | 
|  | 247 | \ | 
| David Woodhouse | 5658c76 | 2008-05-23 13:52:42 +0100 | [diff] [blame] | 248 | /* Built-in firmware blobs */					\ | 
|  | 249 | .builtin_fw        : AT(ADDR(.builtin_fw) - LOAD_OFFSET) {	\ | 
|  | 250 | VMLINUX_SYMBOL(__start_builtin_fw) = .;			\ | 
|  | 251 | *(.builtin_fw)						\ | 
|  | 252 | VMLINUX_SYMBOL(__end_builtin_fw) = .;			\ | 
|  | 253 | }								\ | 
|  | 254 | \ | 
| Matt Porter | 394b701 | 2005-11-07 01:00:15 -0800 | [diff] [blame] | 255 | /* RapidIO route ops */						\ | 
| Alexandre Bounine | e5cabeb | 2010-05-26 14:43:59 -0700 | [diff] [blame] | 256 | .rio_ops        : AT(ADDR(.rio_ops) - LOAD_OFFSET) {		\ | 
| Alexandre Bounine | 058f88d | 2010-05-26 14:44:03 -0700 | [diff] [blame] | 257 | VMLINUX_SYMBOL(__start_rio_switch_ops) = .;		\ | 
|  | 258 | *(.rio_switch_ops)					\ | 
|  | 259 | VMLINUX_SYMBOL(__end_rio_switch_ops) = .;		\ | 
| Matt Porter | 394b701 | 2005-11-07 01:00:15 -0800 | [diff] [blame] | 260 | }								\ | 
|  | 261 | \ | 
| Jan Beulich | 63687a5 | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 262 | TRACEDATA							\ | 
|  | 263 | \ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | /* Kernel symbol table: Normal symbols */			\ | 
|  | 265 | __ksymtab         : AT(ADDR(__ksymtab) - LOAD_OFFSET) {		\ | 
|  | 266 | VMLINUX_SYMBOL(__start___ksymtab) = .;			\ | 
|  | 267 | *(__ksymtab)						\ | 
|  | 268 | VMLINUX_SYMBOL(__stop___ksymtab) = .;			\ | 
|  | 269 | }								\ | 
|  | 270 | \ | 
|  | 271 | /* Kernel symbol table: GPL-only symbols */			\ | 
|  | 272 | __ksymtab_gpl     : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) {	\ | 
|  | 273 | VMLINUX_SYMBOL(__start___ksymtab_gpl) = .;		\ | 
|  | 274 | *(__ksymtab_gpl)					\ | 
|  | 275 | VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .;		\ | 
|  | 276 | }								\ | 
|  | 277 | \ | 
| Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 278 | /* Kernel symbol table: Normal unused symbols */		\ | 
|  | 279 | __ksymtab_unused  : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) {	\ | 
|  | 280 | VMLINUX_SYMBOL(__start___ksymtab_unused) = .;		\ | 
|  | 281 | *(__ksymtab_unused)					\ | 
|  | 282 | VMLINUX_SYMBOL(__stop___ksymtab_unused) = .;		\ | 
|  | 283 | }								\ | 
|  | 284 | \ | 
|  | 285 | /* Kernel symbol table: GPL-only unused symbols */		\ | 
|  | 286 | __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \ | 
|  | 287 | VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .;	\ | 
|  | 288 | *(__ksymtab_unused_gpl)					\ | 
|  | 289 | VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .;	\ | 
|  | 290 | }								\ | 
|  | 291 | \ | 
| Greg Kroah-Hartman | 9f28bb7 | 2006-03-20 13:17:13 -0800 | [diff] [blame] | 292 | /* Kernel symbol table: GPL-future-only symbols */		\ | 
|  | 293 | __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \ | 
|  | 294 | VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .;	\ | 
|  | 295 | *(__ksymtab_gpl_future)					\ | 
|  | 296 | VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .;	\ | 
|  | 297 | }								\ | 
|  | 298 | \ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | /* Kernel symbol table: Normal symbols */			\ | 
|  | 300 | __kcrctab         : AT(ADDR(__kcrctab) - LOAD_OFFSET) {		\ | 
|  | 301 | VMLINUX_SYMBOL(__start___kcrctab) = .;			\ | 
|  | 302 | *(__kcrctab)						\ | 
|  | 303 | VMLINUX_SYMBOL(__stop___kcrctab) = .;			\ | 
|  | 304 | }								\ | 
|  | 305 | \ | 
|  | 306 | /* Kernel symbol table: GPL-only symbols */			\ | 
|  | 307 | __kcrctab_gpl     : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) {	\ | 
|  | 308 | VMLINUX_SYMBOL(__start___kcrctab_gpl) = .;		\ | 
|  | 309 | *(__kcrctab_gpl)					\ | 
|  | 310 | VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .;		\ | 
|  | 311 | }								\ | 
|  | 312 | \ | 
| Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 313 | /* Kernel symbol table: Normal unused symbols */		\ | 
|  | 314 | __kcrctab_unused  : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) {	\ | 
|  | 315 | VMLINUX_SYMBOL(__start___kcrctab_unused) = .;		\ | 
|  | 316 | *(__kcrctab_unused)					\ | 
|  | 317 | VMLINUX_SYMBOL(__stop___kcrctab_unused) = .;		\ | 
|  | 318 | }								\ | 
|  | 319 | \ | 
|  | 320 | /* Kernel symbol table: GPL-only unused symbols */		\ | 
|  | 321 | __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \ | 
|  | 322 | VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .;	\ | 
|  | 323 | *(__kcrctab_unused_gpl)					\ | 
|  | 324 | VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .;	\ | 
|  | 325 | }								\ | 
|  | 326 | \ | 
| Greg Kroah-Hartman | 9f28bb7 | 2006-03-20 13:17:13 -0800 | [diff] [blame] | 327 | /* Kernel symbol table: GPL-future-only symbols */		\ | 
|  | 328 | __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \ | 
|  | 329 | VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .;	\ | 
|  | 330 | *(__kcrctab_gpl_future)					\ | 
|  | 331 | VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .;	\ | 
|  | 332 | }								\ | 
|  | 333 | \ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | /* Kernel symbol table: strings */				\ | 
|  | 335 | __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) {	\ | 
|  | 336 | *(__ksymtab_strings)					\ | 
|  | 337 | }								\ | 
|  | 338 | \ | 
| Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 339 | /* __*init sections */						\ | 
|  | 340 | __init_rodata : AT(ADDR(__init_rodata) - LOAD_OFFSET) {		\ | 
| Sam Ravnborg | 312b148 | 2008-01-28 20:21:15 +0100 | [diff] [blame] | 341 | *(.ref.rodata)						\ | 
| Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 342 | DEV_KEEP(init.rodata)					\ | 
|  | 343 | DEV_KEEP(exit.rodata)					\ | 
|  | 344 | CPU_KEEP(init.rodata)					\ | 
|  | 345 | CPU_KEEP(exit.rodata)					\ | 
|  | 346 | MEM_KEEP(init.rodata)					\ | 
|  | 347 | MEM_KEEP(exit.rodata)					\ | 
|  | 348 | }								\ | 
|  | 349 | \ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | /* Built-in module parameters. */				\ | 
|  | 351 | __param : AT(ADDR(__param) - LOAD_OFFSET) {			\ | 
|  | 352 | VMLINUX_SYMBOL(__start___param) = .;			\ | 
|  | 353 | *(__param)						\ | 
|  | 354 | VMLINUX_SYMBOL(__stop___param) = .;			\ | 
| Arjan van de Ven | edeed30 | 2008-01-30 13:34:08 +0100 | [diff] [blame] | 355 | . = ALIGN((align));					\ | 
| Vivek Goyal | 6569580 | 2006-12-07 02:14:03 +0100 | [diff] [blame] | 356 | VMLINUX_SYMBOL(__end_rodata) = .;			\ | 
| Marcelo Tosatti | 7583ddf | 2006-09-27 01:51:02 -0700 | [diff] [blame] | 357 | }								\ | 
| Sam Ravnborg | 4096b46 | 2007-05-29 21:29:00 +0200 | [diff] [blame] | 358 | . = ALIGN((align)); | 
|  | 359 |  | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 360 | /* RODATA & RO_DATA provided for backward compatibility. | 
| Sam Ravnborg | 4096b46 | 2007-05-29 21:29:00 +0200 | [diff] [blame] | 361 | * All archs are supposed to use RO_DATA() */ | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 362 | #define RODATA          RO_DATA_SECTION(4096) | 
|  | 363 | #define RO_DATA(align)  RO_DATA_SECTION(align) | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 |  | 
|  | 365 | #define SECURITY_INIT							\ | 
| Eric W. Biederman | 60bad7f | 2005-06-25 14:57:46 -0700 | [diff] [blame] | 366 | .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | VMLINUX_SYMBOL(__security_initcall_start) = .;		\ | 
|  | 368 | *(.security_initcall.init) 				\ | 
|  | 369 | VMLINUX_SYMBOL(__security_initcall_end) = .;		\ | 
|  | 370 | } | 
|  | 371 |  | 
| Sam Ravnborg | 7664709 | 2007-05-13 00:31:33 +0200 | [diff] [blame] | 372 | /* .text section. Map to function alignment to avoid address changes | 
|  | 373 | * during second ld run in second ld pass when generating System.map */ | 
|  | 374 | #define TEXT_TEXT							\ | 
|  | 375 | ALIGN_FUNCTION();					\ | 
| Jan Beulich | fb5e2b3 | 2008-06-18 12:36:01 +0100 | [diff] [blame] | 376 | *(.text.hot)						\ | 
| Sam Ravnborg | 0e0d314 | 2007-05-17 20:14:48 +0200 | [diff] [blame] | 377 | *(.text)						\ | 
| Sam Ravnborg | 312b148 | 2008-01-28 20:21:15 +0100 | [diff] [blame] | 378 | *(.ref.text)						\ | 
| Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 379 | DEV_KEEP(init.text)						\ | 
|  | 380 | DEV_KEEP(exit.text)						\ | 
|  | 381 | CPU_KEEP(init.text)						\ | 
|  | 382 | CPU_KEEP(exit.text)						\ | 
|  | 383 | MEM_KEEP(init.text)						\ | 
| Jan Beulich | fb5e2b3 | 2008-06-18 12:36:01 +0100 | [diff] [blame] | 384 | MEM_KEEP(exit.text)						\ | 
|  | 385 | *(.text.unlikely) | 
| Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 386 |  | 
| Sam Ravnborg | 7664709 | 2007-05-13 00:31:33 +0200 | [diff] [blame] | 387 |  | 
| Sam Ravnborg | 6d30e3a | 2005-07-14 20:15:44 +0000 | [diff] [blame] | 388 | /* sched.text is aling to function alignment to secure we have same | 
|  | 389 | * address even at second ld pass when generating System.map */ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | #define SCHED_TEXT							\ | 
| Sam Ravnborg | 6d30e3a | 2005-07-14 20:15:44 +0000 | [diff] [blame] | 391 | ALIGN_FUNCTION();					\ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | VMLINUX_SYMBOL(__sched_text_start) = .;			\ | 
|  | 393 | *(.sched.text)						\ | 
|  | 394 | VMLINUX_SYMBOL(__sched_text_end) = .; | 
|  | 395 |  | 
| Sam Ravnborg | 6d30e3a | 2005-07-14 20:15:44 +0000 | [diff] [blame] | 396 | /* spinlock.text is aling to function alignment to secure we have same | 
|  | 397 | * address even at second ld pass when generating System.map */ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | #define LOCK_TEXT							\ | 
| Sam Ravnborg | 6d30e3a | 2005-07-14 20:15:44 +0000 | [diff] [blame] | 399 | ALIGN_FUNCTION();					\ | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | VMLINUX_SYMBOL(__lock_text_start) = .;			\ | 
|  | 401 | *(.spinlock.text)					\ | 
|  | 402 | VMLINUX_SYMBOL(__lock_text_end) = .; | 
| Prasanna S Panchamukhi | d0aaff9 | 2005-09-06 15:19:26 -0700 | [diff] [blame] | 403 |  | 
|  | 404 | #define KPROBES_TEXT							\ | 
|  | 405 | ALIGN_FUNCTION();					\ | 
|  | 406 | VMLINUX_SYMBOL(__kprobes_text_start) = .;		\ | 
|  | 407 | *(.kprobes.text)					\ | 
|  | 408 | VMLINUX_SYMBOL(__kprobes_text_end) = .; | 
| Paolo 'Blaisorblade' Giarrusso | a7d0c21 | 2005-09-10 19:44:54 +0200 | [diff] [blame] | 409 |  | 
| Frederic Weisbecker | a0343e8 | 2008-12-09 23:53:16 +0100 | [diff] [blame] | 410 | #ifdef CONFIG_FUNCTION_GRAPH_TRACER | 
|  | 411 | #define IRQENTRY_TEXT							\ | 
|  | 412 | ALIGN_FUNCTION();					\ | 
|  | 413 | VMLINUX_SYMBOL(__irqentry_text_start) = .;		\ | 
|  | 414 | *(.irqentry.text)					\ | 
|  | 415 | VMLINUX_SYMBOL(__irqentry_text_end) = .; | 
|  | 416 | #else | 
|  | 417 | #define IRQENTRY_TEXT | 
|  | 418 | #endif | 
|  | 419 |  | 
| Sam Ravnborg | 37c514e | 2008-02-19 21:00:18 +0100 | [diff] [blame] | 420 | /* Section used for early init (in .S files) */ | 
| Sam Ravnborg | 7923f90 | 2009-06-14 22:10:41 +0200 | [diff] [blame] | 421 | #define HEAD_TEXT  *(.head.text) | 
| Sam Ravnborg | 37c514e | 2008-02-19 21:00:18 +0100 | [diff] [blame] | 422 |  | 
| Sam Ravnborg | 7923f90 | 2009-06-14 22:10:41 +0200 | [diff] [blame] | 423 | #define HEAD_TEXT_SECTION							\ | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 424 | .head.text : AT(ADDR(.head.text) - LOAD_OFFSET) {		\ | 
|  | 425 | HEAD_TEXT						\ | 
|  | 426 | } | 
|  | 427 |  | 
|  | 428 | /* | 
|  | 429 | * Exception table | 
|  | 430 | */ | 
|  | 431 | #define EXCEPTION_TABLE(align)						\ | 
|  | 432 | . = ALIGN(align);						\ | 
|  | 433 | __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {		\ | 
|  | 434 | VMLINUX_SYMBOL(__start___ex_table) = .;			\ | 
|  | 435 | *(__ex_table)						\ | 
|  | 436 | VMLINUX_SYMBOL(__stop___ex_table) = .;			\ | 
|  | 437 | } | 
|  | 438 |  | 
|  | 439 | /* | 
|  | 440 | * Init task | 
|  | 441 | */ | 
| Tim Abbott | 39a449d | 2009-06-23 18:53:15 -0400 | [diff] [blame] | 442 | #define INIT_TASK_DATA_SECTION(align)					\ | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 443 | . = ALIGN(align);						\ | 
| Sam Ravnborg | da5e37e | 2010-07-13 11:39:42 +0200 | [diff] [blame] | 444 | .data..init_task :  AT(ADDR(.data..init_task) - LOAD_OFFSET) {	\ | 
| Tim Abbott | 39a449d | 2009-06-23 18:53:15 -0400 | [diff] [blame] | 445 | INIT_TASK_DATA(align)					\ | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 446 | } | 
| Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 447 |  | 
| Peter Oberparleiter | b99b87f | 2009-06-17 16:28:03 -0700 | [diff] [blame] | 448 | #ifdef CONFIG_CONSTRUCTORS | 
| Heiko Carstens | 2a2325e | 2009-06-30 11:41:13 -0700 | [diff] [blame] | 449 | #define KERNEL_CTORS()	. = ALIGN(8);			   \ | 
|  | 450 | VMLINUX_SYMBOL(__ctors_start) = .; \ | 
| Peter Oberparleiter | b99b87f | 2009-06-17 16:28:03 -0700 | [diff] [blame] | 451 | *(.ctors)			   \ | 
|  | 452 | VMLINUX_SYMBOL(__ctors_end) = .; | 
|  | 453 | #else | 
|  | 454 | #define KERNEL_CTORS() | 
|  | 455 | #endif | 
|  | 456 |  | 
| Sam Ravnborg | 01ba2bd | 2008-01-20 14:15:03 +0100 | [diff] [blame] | 457 | /* init and exit section handling */ | 
| Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 458 | #define INIT_DATA							\ | 
|  | 459 | *(.init.data)							\ | 
|  | 460 | DEV_DISCARD(init.data)						\ | 
| Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 461 | CPU_DISCARD(init.data)						\ | 
| Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 462 | MEM_DISCARD(init.data)						\ | 
| Peter Oberparleiter | b99b87f | 2009-06-17 16:28:03 -0700 | [diff] [blame] | 463 | KERNEL_CTORS()							\ | 
| Jan Beulich | fd6c3a8 | 2009-03-12 10:58:33 +0000 | [diff] [blame] | 464 | *(.init.rodata)							\ | 
| John Reiser | 4b3b4c5 | 2009-07-27 11:23:50 -0700 | [diff] [blame] | 465 | MCOUNT_REC()							\ | 
| Jan Beulich | fd6c3a8 | 2009-03-12 10:58:33 +0000 | [diff] [blame] | 466 | DEV_DISCARD(init.rodata)					\ | 
|  | 467 | CPU_DISCARD(init.rodata)					\ | 
| Jason Baron | e9d376f | 2009-02-05 11:51:38 -0500 | [diff] [blame] | 468 | MEM_DISCARD(init.rodata) | 
| Sam Ravnborg | 01ba2bd | 2008-01-20 14:15:03 +0100 | [diff] [blame] | 469 |  | 
| Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 470 | #define INIT_TEXT							\ | 
|  | 471 | *(.init.text)							\ | 
|  | 472 | DEV_DISCARD(init.text)						\ | 
|  | 473 | CPU_DISCARD(init.text)						\ | 
|  | 474 | MEM_DISCARD(init.text) | 
|  | 475 |  | 
|  | 476 | #define EXIT_DATA							\ | 
|  | 477 | *(.exit.data)							\ | 
|  | 478 | DEV_DISCARD(exit.data)						\ | 
|  | 479 | DEV_DISCARD(exit.rodata)					\ | 
|  | 480 | CPU_DISCARD(exit.data)						\ | 
|  | 481 | CPU_DISCARD(exit.rodata)					\ | 
|  | 482 | MEM_DISCARD(exit.data)						\ | 
|  | 483 | MEM_DISCARD(exit.rodata) | 
|  | 484 |  | 
|  | 485 | #define EXIT_TEXT							\ | 
|  | 486 | *(.exit.text)							\ | 
|  | 487 | DEV_DISCARD(exit.text)						\ | 
|  | 488 | CPU_DISCARD(exit.text)						\ | 
|  | 489 | MEM_DISCARD(exit.text) | 
| Sam Ravnborg | 01ba2bd | 2008-01-20 14:15:03 +0100 | [diff] [blame] | 490 |  | 
| Sam Ravnborg | 7923f90 | 2009-06-14 22:10:41 +0200 | [diff] [blame] | 491 | #define EXIT_CALL							\ | 
|  | 492 | *(.exitcall.exit) | 
|  | 493 |  | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 494 | /* | 
|  | 495 | * bss (Block Started by Symbol) - uninitialized data | 
|  | 496 | * zeroed during startup | 
|  | 497 | */ | 
| Tim Abbott | 04e448d | 2009-07-12 18:23:33 -0400 | [diff] [blame] | 498 | #define SBSS(sbss_align)						\ | 
|  | 499 | . = ALIGN(sbss_align);						\ | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 500 | .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) {				\ | 
|  | 501 | *(.sbss)						\ | 
|  | 502 | *(.scommon)						\ | 
|  | 503 | } | 
|  | 504 |  | 
|  | 505 | #define BSS(bss_align)							\ | 
|  | 506 | . = ALIGN(bss_align);						\ | 
|  | 507 | .bss : AT(ADDR(.bss) - LOAD_OFFSET) {				\ | 
| Tim Abbott | 7c74df0 | 2010-02-20 01:03:38 +0100 | [diff] [blame] | 508 | *(.bss..page_aligned)					\ | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 509 | *(.dynbss)						\ | 
|  | 510 | *(.bss)							\ | 
|  | 511 | *(COMMON)						\ | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 512 | } | 
|  | 513 |  | 
|  | 514 | /* | 
|  | 515 | * DWARF debug sections. | 
|  | 516 | * Symbols in the DWARF debugging sections are relative to | 
|  | 517 | * the beginning of the section so we begin them at 0. | 
|  | 518 | */ | 
| Paolo 'Blaisorblade' Giarrusso | a7d0c21 | 2005-09-10 19:44:54 +0200 | [diff] [blame] | 519 | #define DWARF_DEBUG							\ | 
|  | 520 | /* DWARF 1 */						\ | 
|  | 521 | .debug          0 : { *(.debug) }			\ | 
|  | 522 | .line           0 : { *(.line) }			\ | 
|  | 523 | /* GNU DWARF 1 extensions */				\ | 
|  | 524 | .debug_srcinfo  0 : { *(.debug_srcinfo) }		\ | 
|  | 525 | .debug_sfnames  0 : { *(.debug_sfnames) }		\ | 
|  | 526 | /* DWARF 1.1 and DWARF 2 */				\ | 
|  | 527 | .debug_aranges  0 : { *(.debug_aranges) }		\ | 
|  | 528 | .debug_pubnames 0 : { *(.debug_pubnames) }		\ | 
|  | 529 | /* DWARF 2 */						\ | 
|  | 530 | .debug_info     0 : { *(.debug_info			\ | 
|  | 531 | .gnu.linkonce.wi.*) }			\ | 
|  | 532 | .debug_abbrev   0 : { *(.debug_abbrev) }		\ | 
|  | 533 | .debug_line     0 : { *(.debug_line) }			\ | 
|  | 534 | .debug_frame    0 : { *(.debug_frame) }			\ | 
|  | 535 | .debug_str      0 : { *(.debug_str) }			\ | 
|  | 536 | .debug_loc      0 : { *(.debug_loc) }			\ | 
|  | 537 | .debug_macinfo  0 : { *(.debug_macinfo) }		\ | 
|  | 538 | /* SGI/MIPS DWARF 2 extensions */			\ | 
|  | 539 | .debug_weaknames 0 : { *(.debug_weaknames) }		\ | 
|  | 540 | .debug_funcnames 0 : { *(.debug_funcnames) }		\ | 
|  | 541 | .debug_typenames 0 : { *(.debug_typenames) }		\ | 
|  | 542 | .debug_varnames  0 : { *(.debug_varnames) }		\ | 
|  | 543 |  | 
|  | 544 | /* Stabs debugging sections.  */ | 
|  | 545 | #define STABS_DEBUG							\ | 
|  | 546 | .stab 0 : { *(.stab) }					\ | 
|  | 547 | .stabstr 0 : { *(.stabstr) }				\ | 
|  | 548 | .stab.excl 0 : { *(.stab.excl) }			\ | 
|  | 549 | .stab.exclstr 0 : { *(.stab.exclstr) }			\ | 
|  | 550 | .stab.index 0 : { *(.stab.index) }			\ | 
|  | 551 | .stab.indexstr 0 : { *(.stab.indexstr) }		\ | 
|  | 552 | .comment 0 : { *(.comment) } | 
| Jeremy Fitzhardinge | 9c9b8b3 | 2006-09-25 23:32:26 -0700 | [diff] [blame] | 553 |  | 
| Jan Beulich | 6360b1f | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 554 | #ifdef CONFIG_GENERIC_BUG | 
| Jeremy Fitzhardinge | 7664c5a | 2006-12-08 02:36:19 -0800 | [diff] [blame] | 555 | #define BUG_TABLE							\ | 
|  | 556 | . = ALIGN(8);							\ | 
|  | 557 | __bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) {		\ | 
| Yoshinori Sato | c6de0026 | 2008-07-31 00:07:29 -0700 | [diff] [blame] | 558 | VMLINUX_SYMBOL(__start___bug_table) = .;		\ | 
| Jeremy Fitzhardinge | 7664c5a | 2006-12-08 02:36:19 -0800 | [diff] [blame] | 559 | *(__bug_table)						\ | 
| Yoshinori Sato | c6de0026 | 2008-07-31 00:07:29 -0700 | [diff] [blame] | 560 | VMLINUX_SYMBOL(__stop___bug_table) = .;			\ | 
| Jeremy Fitzhardinge | 7664c5a | 2006-12-08 02:36:19 -0800 | [diff] [blame] | 561 | } | 
| Jan Beulich | 6360b1f | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 562 | #else | 
|  | 563 | #define BUG_TABLE | 
|  | 564 | #endif | 
| Jeremy Fitzhardinge | 7664c5a | 2006-12-08 02:36:19 -0800 | [diff] [blame] | 565 |  | 
| Jan Beulich | 63687a5 | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 566 | #ifdef CONFIG_PM_TRACE | 
|  | 567 | #define TRACEDATA							\ | 
|  | 568 | . = ALIGN(4);							\ | 
|  | 569 | .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) {		\ | 
| Yoshinori Sato | c6de0026 | 2008-07-31 00:07:29 -0700 | [diff] [blame] | 570 | VMLINUX_SYMBOL(__tracedata_start) = .;			\ | 
| Jan Beulich | 63687a5 | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 571 | *(.tracedata)						\ | 
| Yoshinori Sato | c6de0026 | 2008-07-31 00:07:29 -0700 | [diff] [blame] | 572 | VMLINUX_SYMBOL(__tracedata_end) = .;			\ | 
| Jan Beulich | 63687a5 | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 573 | } | 
|  | 574 | #else | 
|  | 575 | #define TRACEDATA | 
|  | 576 | #endif | 
|  | 577 |  | 
| Jeremy Fitzhardinge | 9c9b8b3 | 2006-09-25 23:32:26 -0700 | [diff] [blame] | 578 | #define NOTES								\ | 
| Roland McGrath | cbe8712 | 2007-07-19 01:48:36 -0700 | [diff] [blame] | 579 | .notes : AT(ADDR(.notes) - LOAD_OFFSET) {			\ | 
|  | 580 | VMLINUX_SYMBOL(__start_notes) = .;			\ | 
|  | 581 | *(.note.*)						\ | 
|  | 582 | VMLINUX_SYMBOL(__stop_notes) = .;			\ | 
|  | 583 | } | 
| Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 584 |  | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 585 | #define INIT_SETUP(initsetup_align)					\ | 
|  | 586 | . = ALIGN(initsetup_align);				\ | 
|  | 587 | VMLINUX_SYMBOL(__setup_start) = .;			\ | 
|  | 588 | *(.init.setup)						\ | 
|  | 589 | VMLINUX_SYMBOL(__setup_end) = .; | 
|  | 590 |  | 
| Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 591 | #define INITCALLS							\ | 
| Eduard - Gabriel Munteanu | c2147a5 | 2008-07-25 19:45:11 -0700 | [diff] [blame] | 592 | *(.initcallearly.init)						\ | 
| Yoshinori Sato | c6de0026 | 2008-07-31 00:07:29 -0700 | [diff] [blame] | 593 | VMLINUX_SYMBOL(__early_initcall_end) = .;			\ | 
| Linus Torvalds | b3438f8 | 2006-11-20 11:47:18 -0800 | [diff] [blame] | 594 | *(.initcall0.init)						\ | 
|  | 595 | *(.initcall0s.init)						\ | 
| Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 596 | *(.initcall1.init)						\ | 
| Andrew Morton | 735a7ff | 2006-10-27 11:42:37 -0700 | [diff] [blame] | 597 | *(.initcall1s.init)						\ | 
| Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 598 | *(.initcall2.init)						\ | 
| Andrew Morton | 735a7ff | 2006-10-27 11:42:37 -0700 | [diff] [blame] | 599 | *(.initcall2s.init)						\ | 
| Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 600 | *(.initcall3.init)						\ | 
| Andrew Morton | 735a7ff | 2006-10-27 11:42:37 -0700 | [diff] [blame] | 601 | *(.initcall3s.init)						\ | 
| Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 602 | *(.initcall4.init)						\ | 
| Andrew Morton | 735a7ff | 2006-10-27 11:42:37 -0700 | [diff] [blame] | 603 | *(.initcall4s.init)						\ | 
| Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 604 | *(.initcall5.init)						\ | 
| Andrew Morton | 735a7ff | 2006-10-27 11:42:37 -0700 | [diff] [blame] | 605 | *(.initcall5s.init)						\ | 
| Linus Torvalds | 8d610dd | 2006-12-11 12:12:04 -0800 | [diff] [blame] | 606 | *(.initcallrootfs.init)						\ | 
| Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 607 | *(.initcall6.init)						\ | 
| Andrew Morton | 735a7ff | 2006-10-27 11:42:37 -0700 | [diff] [blame] | 608 | *(.initcall6s.init)						\ | 
|  | 609 | *(.initcall7.init)						\ | 
|  | 610 | *(.initcall7s.init) | 
| Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 611 |  | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 612 | #define INIT_CALLS							\ | 
|  | 613 | VMLINUX_SYMBOL(__initcall_start) = .;			\ | 
|  | 614 | INITCALLS						\ | 
|  | 615 | VMLINUX_SYMBOL(__initcall_end) = .; | 
|  | 616 |  | 
|  | 617 | #define CON_INITCALL							\ | 
|  | 618 | VMLINUX_SYMBOL(__con_initcall_start) = .;		\ | 
|  | 619 | *(.con_initcall.init)					\ | 
|  | 620 | VMLINUX_SYMBOL(__con_initcall_end) = .; | 
|  | 621 |  | 
|  | 622 | #define SECURITY_INITCALL						\ | 
|  | 623 | VMLINUX_SYMBOL(__security_initcall_start) = .;		\ | 
|  | 624 | *(.security_initcall.init)				\ | 
|  | 625 | VMLINUX_SYMBOL(__security_initcall_end) = .; | 
|  | 626 |  | 
|  | 627 | #ifdef CONFIG_BLK_DEV_INITRD | 
|  | 628 | #define INIT_RAM_FS							\ | 
|  | 629 | . = ALIGN(PAGE_SIZE);						\ | 
|  | 630 | VMLINUX_SYMBOL(__initramfs_start) = .;				\ | 
|  | 631 | *(.init.ramfs)							\ | 
|  | 632 | VMLINUX_SYMBOL(__initramfs_end) = .; | 
|  | 633 | #else | 
| David Howells | eadfe21 | 2009-06-22 15:32:31 +0100 | [diff] [blame] | 634 | #define INIT_RAM_FS | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 635 | #endif | 
|  | 636 |  | 
| Tejun Heo | 023bf6f | 2009-07-09 11:27:40 +0900 | [diff] [blame] | 637 | /* | 
|  | 638 | * Default discarded sections. | 
|  | 639 | * | 
|  | 640 | * Some archs want to discard exit text/data at runtime rather than | 
|  | 641 | * link time due to cross-section references such as alt instructions, | 
|  | 642 | * bug table, eh_frame, etc.  DISCARDS must be the last of output | 
|  | 643 | * section definitions so that such archs put those in earlier section | 
|  | 644 | * definitions. | 
|  | 645 | */ | 
| Tejun Heo | 405d967 | 2009-06-24 15:13:38 +0900 | [diff] [blame] | 646 | #define DISCARDS							\ | 
|  | 647 | /DISCARD/ : {							\ | 
|  | 648 | EXIT_TEXT							\ | 
|  | 649 | EXIT_DATA							\ | 
| Tejun Heo | 023bf6f | 2009-07-09 11:27:40 +0900 | [diff] [blame] | 650 | EXIT_CALL							\ | 
| Tejun Heo | 405d967 | 2009-06-24 15:13:38 +0900 | [diff] [blame] | 651 | *(.discard)							\ | 
| Jeremy Fitzhardinge | c7f52cd | 2010-07-22 22:58:01 -0700 | [diff] [blame] | 652 | *(.discard.*)							\ | 
| Tejun Heo | 405d967 | 2009-06-24 15:13:38 +0900 | [diff] [blame] | 653 | } | 
|  | 654 |  | 
| Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 655 | /** | 
| Tejun Heo | 6b7c38d | 2009-01-19 12:21:28 +0900 | [diff] [blame] | 656 | * PERCPU_VADDR - define output section for percpu area | 
| Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 657 | * @vaddr: explicit base address (optional) | 
|  | 658 | * @phdr: destination PHDR (optional) | 
|  | 659 | * | 
|  | 660 | * Macro which expands to output section for percpu area.  If @vaddr | 
|  | 661 | * is not blank, it specifies explicit base address and all percpu | 
|  | 662 | * symbols will be offset from the given address.  If blank, @vaddr | 
|  | 663 | * always equals @laddr + LOAD_OFFSET. | 
|  | 664 | * | 
|  | 665 | * @phdr defines the output PHDR to use if not blank.  Be warned that | 
|  | 666 | * output PHDR is sticky.  If @phdr is specified, the next output | 
|  | 667 | * section in the linker script will go there too.  @phdr should have | 
|  | 668 | * a leading colon. | 
|  | 669 | * | 
| Tejun Heo | 3ac6cff | 2009-01-30 16:32:22 +0900 | [diff] [blame] | 670 | * Note that this macros defines __per_cpu_load as an absolute symbol. | 
|  | 671 | * If there is no need to put the percpu section at a predetermined | 
|  | 672 | * address, use PERCPU(). | 
| Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 673 | */ | 
|  | 674 | #define PERCPU_VADDR(vaddr, phdr)					\ | 
| Ingo Molnar | dba3d36 | 2009-01-29 17:10:12 +0100 | [diff] [blame] | 675 | VMLINUX_SYMBOL(__per_cpu_load) = .;				\ | 
| Denys Vlasenko | 3d9a854 | 2010-02-20 01:03:43 +0100 | [diff] [blame] | 676 | .data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load)		\ | 
| Tejun Heo | 6b7c38d | 2009-01-19 12:21:28 +0900 | [diff] [blame] | 677 | - LOAD_OFFSET) {			\ | 
|  | 678 | VMLINUX_SYMBOL(__per_cpu_start) = .;			\ | 
| Denys Vlasenko | 3d9a854 | 2010-02-20 01:03:43 +0100 | [diff] [blame] | 679 | *(.data..percpu..first)					\ | 
|  | 680 | *(.data..percpu..page_aligned)				\ | 
|  | 681 | *(.data..percpu)					\ | 
|  | 682 | *(.data..percpu..shared_aligned)			\ | 
| Tejun Heo | 6b7c38d | 2009-01-19 12:21:28 +0900 | [diff] [blame] | 683 | VMLINUX_SYMBOL(__per_cpu_end) = .;			\ | 
|  | 684 | } phdr								\ | 
| Denys Vlasenko | 3d9a854 | 2010-02-20 01:03:43 +0100 | [diff] [blame] | 685 | . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu); | 
| Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 686 |  | 
|  | 687 | /** | 
|  | 688 | * PERCPU - define output section for percpu area, simple version | 
|  | 689 | * @align: required alignment | 
|  | 690 | * | 
|  | 691 | * Align to @align and outputs output section for percpu area.  This | 
|  | 692 | * macro doesn't maniuplate @vaddr or @phdr and __per_cpu_load and | 
|  | 693 | * __per_cpu_start will be identical. | 
| Tejun Heo | 3ac6cff | 2009-01-30 16:32:22 +0900 | [diff] [blame] | 694 | * | 
|  | 695 | * This macro is equivalent to ALIGN(align); PERCPU_VADDR( , ) except | 
|  | 696 | * that __per_cpu_load is defined as a relative symbol against | 
| Denys Vlasenko | 3d9a854 | 2010-02-20 01:03:43 +0100 | [diff] [blame] | 697 | * .data..percpu which is required for relocatable x86_32 | 
| Tejun Heo | 3ac6cff | 2009-01-30 16:32:22 +0900 | [diff] [blame] | 698 | * configuration. | 
| Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 699 | */ | 
|  | 700 | #define PERCPU(align)							\ | 
|  | 701 | . = ALIGN(align);						\ | 
| Denys Vlasenko | 3d9a854 | 2010-02-20 01:03:43 +0100 | [diff] [blame] | 702 | .data..percpu	: AT(ADDR(.data..percpu) - LOAD_OFFSET) {	\ | 
| Tejun Heo | 3ac6cff | 2009-01-30 16:32:22 +0900 | [diff] [blame] | 703 | VMLINUX_SYMBOL(__per_cpu_load) = .;			\ | 
|  | 704 | VMLINUX_SYMBOL(__per_cpu_start) = .;			\ | 
| Denys Vlasenko | 3d9a854 | 2010-02-20 01:03:43 +0100 | [diff] [blame] | 705 | *(.data..percpu..first)					\ | 
|  | 706 | *(.data..percpu..page_aligned)				\ | 
|  | 707 | *(.data..percpu)					\ | 
|  | 708 | *(.data..percpu..shared_aligned)			\ | 
| Tejun Heo | 3ac6cff | 2009-01-30 16:32:22 +0900 | [diff] [blame] | 709 | VMLINUX_SYMBOL(__per_cpu_end) = .;			\ | 
|  | 710 | } | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 711 |  | 
|  | 712 |  | 
|  | 713 | /* | 
|  | 714 | * Definition of the high level *_SECTION macros | 
|  | 715 | * They will fit only a subset of the architectures | 
|  | 716 | */ | 
|  | 717 |  | 
|  | 718 |  | 
|  | 719 | /* | 
|  | 720 | * Writeable data. | 
|  | 721 | * All sections are combined in a single .data section. | 
|  | 722 | * The sections following CONSTRUCTORS are arranged so their | 
|  | 723 | * typical alignment matches. | 
|  | 724 | * A cacheline is typical/always less than a PAGE_SIZE so | 
|  | 725 | * the sections that has this restriction (or similar) | 
|  | 726 | * is located before the ones requiring PAGE_SIZE alignment. | 
|  | 727 | * NOSAVE_DATA starts and ends with a PAGE_SIZE alignment which | 
|  | 728 | * matches the requirment of PAGE_ALIGNED_DATA. | 
|  | 729 | * | 
| Sam Ravnborg | 7923f90 | 2009-06-14 22:10:41 +0200 | [diff] [blame] | 730 | * use 0 as page_align if page_aligned data is not used */ | 
| Paul Mundt | 73f1d93 | 2009-06-24 01:04:36 +0900 | [diff] [blame] | 731 | #define RW_DATA_SECTION(cacheline, pagealigned, inittask)		\ | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 732 | . = ALIGN(PAGE_SIZE);						\ | 
|  | 733 | .data : AT(ADDR(.data) - LOAD_OFFSET) {				\ | 
| Tim Abbott | 39a449d | 2009-06-23 18:53:15 -0400 | [diff] [blame] | 734 | INIT_TASK_DATA(inittask)				\ | 
| Tim Abbott | 1b20862 | 2009-09-24 10:36:16 -0400 | [diff] [blame] | 735 | NOSAVE_DATA						\ | 
|  | 736 | PAGE_ALIGNED_DATA(pagealigned)				\ | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 737 | CACHELINE_ALIGNED_DATA(cacheline)			\ | 
|  | 738 | READ_MOSTLY_DATA(cacheline)				\ | 
|  | 739 | DATA_DATA						\ | 
|  | 740 | CONSTRUCTORS						\ | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 741 | } | 
|  | 742 |  | 
|  | 743 | #define INIT_TEXT_SECTION(inittext_align)				\ | 
|  | 744 | . = ALIGN(inittext_align);					\ | 
|  | 745 | .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {		\ | 
|  | 746 | VMLINUX_SYMBOL(_sinittext) = .;				\ | 
|  | 747 | INIT_TEXT						\ | 
|  | 748 | VMLINUX_SYMBOL(_einittext) = .;				\ | 
|  | 749 | } | 
|  | 750 |  | 
|  | 751 | #define INIT_DATA_SECTION(initsetup_align)				\ | 
|  | 752 | .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {		\ | 
|  | 753 | INIT_DATA						\ | 
|  | 754 | INIT_SETUP(initsetup_align)				\ | 
|  | 755 | INIT_CALLS						\ | 
|  | 756 | CON_INITCALL						\ | 
|  | 757 | SECURITY_INITCALL					\ | 
|  | 758 | INIT_RAM_FS						\ | 
|  | 759 | } | 
|  | 760 |  | 
| Tim Abbott | 04e448d | 2009-07-12 18:23:33 -0400 | [diff] [blame] | 761 | #define BSS_SECTION(sbss_align, bss_align, stop_align)			\ | 
|  | 762 | . = ALIGN(sbss_align);						\ | 
|  | 763 | VMLINUX_SYMBOL(__bss_start) = .;				\ | 
|  | 764 | SBSS(sbss_align)						\ | 
| Sam Ravnborg | ef53dae | 2009-06-07 20:46:37 +0200 | [diff] [blame] | 765 | BSS(bss_align)							\ | 
| Tim Abbott | 04e448d | 2009-07-12 18:23:33 -0400 | [diff] [blame] | 766 | . = ALIGN(stop_align);						\ | 
|  | 767 | VMLINUX_SYMBOL(__bss_stop) = .; |